The purpose of this study is to analyze the application of ultrasonic non-destructive testing technology in bridge engineering.During the research phase,based on literature collection and reading,as well as the analys...The purpose of this study is to analyze the application of ultrasonic non-destructive testing technology in bridge engineering.During the research phase,based on literature collection and reading,as well as the analysis of bridge inspection materials,the principle of ultrasonic non-destructive testing technology and its adaptability to bridge engineering are elaborated.Subsequently,starting from the preparation work before inspection until damage assessment,the entire process of ultrasonic non-destructive testing is studied,and finally,a technical system of ultrasonic non-destructive testing for bridge engineering that runs through the entire process is formed.It is hoped that this article can provide technical reference value for relevant units in China,and promote the high-quality development of China’s bridge engineering from a macro perspective.展开更多
This paper conducts practical research on the application of steel fiber reinforced concrete construction technology in road and bridge engineering.The study emphasized in its core advantages of tensile strength,impac...This paper conducts practical research on the application of steel fiber reinforced concrete construction technology in road and bridge engineering.The study emphasized in its core advantages of tensile strength,impact resistance,fatigue resistance and high toughness,and introduces its applications in scenarios such as bridge deck pavement,expansion joints and tunnel opening sections.The key points of construction techniques such as material ratio and fiber selection,mixing,pouring and vibration,as well as quality control difficulties and solutions such as steel fiber dispersion,shrinkage cracks and temperature control was analyzed.The development trends of intelligent material research and development and automated construction technology,and propose application suggestions for engineering design and construction management was discussed in this study,which can serve as a references to improve the quality of road and bridge engineering.展开更多
A multi-level evaluation model for the superstructure of a damaged prestressed concrete girder or beam bridge is established, and the evaluation indices of the model as well as the rating standards are defined. A norm...A multi-level evaluation model for the superstructure of a damaged prestressed concrete girder or beam bridge is established, and the evaluation indices of the model as well as the rating standards are defined. A normal relative function about the evaluation indices of each element is developed to calculate the relative degree, and for each element there are no sub-level elements. When evaluating the elements in the sub-item level or the index level of the model, the weights of elements pertain to one adopted element, taking into account their degrees of deterioration. Since the relative degrees and structure evaluation scales on the damage conditions are applied to characterize the superstructure of damaged prestressed concrete girder bridges, this method can evaluate the prestressed structure in detail, and the evaluation results agree with the Code for Maintenance of Highway Bridges and Culvers （JTG Hll--2004 ）. Finally, a bridge in Jilin province is taken as an example, using the method developed to evaluate its damage conditions, which gives an effective way for bridge engineering.展开更多
The steadily growing traffic load has resulted in lots of bridge collapse events over the past decades, especiallyfor short-to-medium span bridges. This study investigated probabilistic and dynamic traffic load effect...The steadily growing traffic load has resulted in lots of bridge collapse events over the past decades, especiallyfor short-to-medium span bridges. This study investigated probabilistic and dynamic traffic load effects on shortto-medium span bridges using practical heavy traffic data in China. Mathematical formulations for traffic-bridgecoupled vibration and probabilistic extrapolation were derived. A framework for extrapolating probabilistic anddynamic traffic load effect was presented to conduct an efficient and accurate extrapolation. An equivalent dynamicwheel load model was demonstrated to be feasible for short-to-medium span bridges. Numerical studies of twotypes of simply-supported bridges were conducted based on site-specific traffic monitoring data. Numerical resultsshow that the simulated samples and fitting lines follow a curve line in the Gumbel distribution coordinate system. Itcan be assumed that dynamic traffic load effects follow Gaussian distribution and the extreme value follows Gumbeldistribution. The equivalent probabilistic amplification factor is smaller than the individual dynamic amplificationfactor, which might be due to the variability of individual samples. Eurocode 1 is the most conservative specificationon vehicle load models, followed by the BS5400 specification. The D60-2015 specification in China and ASSHTOspecification provide lower conservative traffic load models.展开更多
Laminated elastomeric bearings have been widely used for small-to-medium-span highway bridges in China, in which concrete shear keys are set transversely to prohibit large girder displacement. To evaluate bridge seism...Laminated elastomeric bearings have been widely used for small-to-medium-span highway bridges in China, in which concrete shear keys are set transversely to prohibit large girder displacement. To evaluate bridge seismic responses more accurately, proper analytical models of bearings and shear keys should be developed. Based on a series of cyclic loading experiments and analyses, rational analytical models of laminated elastomeric bearings and shear keys, which can consider mechanical degradation, were developed. The effect of the mechanical degradation was investigated by examining the seismic response of a small-to-medium-span bridge in the transverse direction under a wide range of peak ground accelerations（PGA）. The damage mechanism for small-to-medium-span highway bridges was determined, which can explain the seismic damage investigation during earthquakes in recent years. The experimental results show that the mechanical properties of laminated elastomeric bearings will degrade due to friction sliding, but the degree of decrease is dependent upon the influencing parameters. It can be concluded that the mechanical degradation of laminated elastomeric bearings and shear keys play an important role in the seismic response of bridges. The degradation of mechanical properties of laminated elastomeric bearings and shear keys should be included to evaluate more precise bridge seismic performance.展开更多
Building a reasonable and accurate finite element model is the first and critical step for structural analysis of complicated bridge. In this article, modeling assistant for continuous suspension with multi-pylon is d...Building a reasonable and accurate finite element model is the first and critical step for structural analysis of complicated bridge. In this article, modeling assistant for continuous suspension with multi-pylon is developed based on .Net platform, with VB.Net, C# language and OpenGL graphic technique. With parameterized modeling method, finite element model of this kind of bridge can be built quickly and accurately, and multi-type element modeling with uniform parameters is realized. With advanced graphic technique, three-dimensional model graph can be real-timely previewed for intuitive data check. With an example of practice project, the accuracy and feasibility of this modeling method and practicality of this software are verified.展开更多
In order to identify the shortcomings and weaknesses of bridge engineering construction quality in Zhejiang province, this paper firstly selects the quality criteriums of four bridge engineering construction quality c...In order to identify the shortcomings and weaknesses of bridge engineering construction quality in Zhejiang province, this paper firstly selects the quality criteriums of four bridge engineering construction quality criteriums, including concrete durability of outbound construction, construction of large steel box girder, construction of large concrete members and prestressed construction, based on the regional characteristics of Zhejiang province. Then, the quality index of construction projects is analyzed by benchmarking projects in the province, and the gap between the application of high-performance steel, the production and installation technology of steel box girder, the construction equipment of marine concrete components, the installation and tension technology of prestressed pipe and the international advanced level is found. On this basis, the paper puts forward the construction quality improvement strategies in three aspects: design concept, industrial construction level and achievement transformation.展开更多
In order to realize the in-situ evaluation of reinforced concrete bridges subjected to fatigue for a long time or after earthquake, an evaluation method for cumulative damage of concrete structures based on unloading ...In order to realize the in-situ evaluation of reinforced concrete bridges subjected to fatigue for a long time or after earthquake, an evaluation method for cumulative damage of concrete structures based on unloading elastic modulus was proposed. First, according to the concrete stress-strain curve and the statistical relationship between residual strain and cumulative strain, the calculation method of static equivalent strain and residual strain concrete based on unloading elastic modulus and the method for estimating the strength of concrete after damage were proposed. The detailed steps of field test and analysis and the practical damage indicators of residual strain were given. Then, the evaluation method of existing stress and strain of Reinforced Concrete Bridge under dead load and the concept of “equivalent dead load bending moment” were put forward. On this basis, the paper analyzed the root cause of the decrease of bearing capacity of Reinforced Concrete Bridge after fatigue damage, and pointed out that the equivalent strain or residual strain of reinforced concrete increases under the fatigue effect, which led to the decreasing of actual live moment and deformation performance while the ultimate load-carrying capacity remained constant or very little decrease. The evaluation method of structure residual capacity was given, and through comparative analysis of eight T reinforced concrete beams that had been in service for 35 years with the static failure tests, the effectiveness of the method was verified.展开更多
This article analyzes the application strategies of shotcrete anchor support technology using a highway bridge-tunnel construction project as an example.The article covers various strategies,including support plan for...This article analyzes the application strategies of shotcrete anchor support technology using a highway bridge-tunnel construction project as an example.The article covers various strategies,including support plan formulation,mortar shotcrete anchor construction,grid steel frame construction,steel mesh construction,and concrete support construction.This analysis aims to provide a guideline for those interested in applying this technology and improving the quality and safety of highway bridges and tunnels construction.展开更多
In recent years, the traffic pressure is increasing. It is of great practical significance to effectively relieve the traffic pressure, improve the transportation efficiency and speed up the road and bridge constructi...In recent years, the traffic pressure is increasing. It is of great practical significance to effectively relieve the traffic pressure, improve the transportation efficiency and speed up the road and bridge construction. In the concrete implementation process, not only technical support, but also safety management should be done well, because this is not only related to the quality of roads and bridges, but also closely related to the traffic safety of pedestrians and vehicles. Therefore, based on the problem, this paper puts forward some suggestions for follow-up reference.展开更多
Highway bridge is the key component of infrastructure construction in China. The construction of highway plays a key role in promoting China's national economy. Implementing highway and bridge construction is an u...Highway bridge is the key component of infrastructure construction in China. The construction of highway plays a key role in promoting China's national economy. Implementing highway and bridge construction is an urgent task in China's socialist modernization. Among them, the roadbed and pavement construction technology has a certain influence on the level of road and bridge engineering. On this basis, this paper introduces the key points of subgrade and pavement construction, analyzes the problems in construction, introduces the main construction technologies of subgrade and pavement in detail, and discusses the application measures of subgrade and pavement construction technology, with a view to continuously improve the quality of road and bridge construction projects.展开更多
This paper analyzes on the common diseases of the road and bridge engineering during the construction period, researches on the causes of these diseases, and puts forward some corresponding solutions for these disease...This paper analyzes on the common diseases of the road and bridge engineering during the construction period, researches on the causes of these diseases, and puts forward some corresponding solutions for these diseases, so as to reduce the adverse effects of the road and bridge engineering diseases on the traffic safety problems. The construction treatment technology in road and bridge construction is elaborated and analyzed, so as to improve the construction quality of road and bridge engineering. It provides reference and ideas for improving the quality of road and bridge construction and improving the safety of China's transportation industry.展开更多
The questions of what kind of individuals university education should cultivate,how to cultivate them,and for whom they are being trained are pressing issues that require immediate solutions.Implementing ideological a...The questions of what kind of individuals university education should cultivate,how to cultivate them,and for whom they are being trained are pressing issues that require immediate solutions.Implementing ideological and political education is a fundamental way to address these challenges.Integrating political education into professional courses is just as important as imparting knowledge,fostering interest,transmitting values,and shaping students’character and spirit.The excavation of ideological and political elements in bridge engineering courses should comprehensively consider the dependent subject of ideological and political elements,the source of cases,the depth of excavation,the trade-offs between courses,the commonality and multifaceted nature of ideological and political elements,as well as the two ways of ideological and political elements integration.Ideological and political elements should be integrated into all stages of classroom lectures,course assignments,final examinations,course design,discipline competitions,school-enterprise cooperation,etc.,so as to achieve the effect of educating people in the whole process.展开更多
Cracking during construction is a common occurrence in modern bridge engineering that can directly impact the overall safety of the bridge.Therefore,it is essential to focus on preventing and controlling cracks.As the...Cracking during construction is a common occurrence in modern bridge engineering that can directly impact the overall safety of the bridge.Therefore,it is essential to focus on preventing and controlling cracks.As the construction technology for bridge engineering has evolved,the internal quality of construction has significantly improved.However,the appearance quality remains a crucial factor that reflects the technical expertise of a construction company.Therefore,minimizing cracks and improving the appearance quality of concrete are critical issues that require the attention of construction units,supervision departments,and construction companies.This article will analyze the causes of cracking and suggest corresponding prevention and treatment methods.展开更多
The construction of perfect highway and bridge engineering facilities can realize the resource transfer and cultural transmission between regions, and improve the social and economic benefits. Therefore, China attache...The construction of perfect highway and bridge engineering facilities can realize the resource transfer and cultural transmission between regions, and improve the social and economic benefits. Therefore, China attaches great importance to the construction of highway and bridge engineering. Because the construction of highway and bridge engineering is affected by the regional terrain and natural climate, it is bound to face many influencing factors in the process of construction and management, among which the subgrade is one of the most influential factors for highway and bridge engineering. Therefore, it is necessary to fully implement quality control, and explore the meaning and practical value of quality control, which is the basic premise to strengthen the effectiveness of quality management.展开更多
In the current new form of social development, the relevant staff can effectively manage the contracts related to road and bridge construction cost, and put forward the corresponding analysis and countermeasures for t...In the current new form of social development, the relevant staff can effectively manage the contracts related to road and bridge construction cost, and put forward the corresponding analysis and countermeasures for the risks existing in its management center, so as to effectively control the overall construction cost to a certain extent, and at the same time, can also pre-judge the related risks that may occur in the process, so that the overall construction development presents a good development trend. In this regard, the relevant staff must form a comprehensive understanding of the relationship between road and bridge project cost and contract management under the new form, and analyze the risks and measures to a certain extent if they want to effectively achieve the above objectives.展开更多
With the continuous improvement of the production technology level of Chinas construction industry and the continuous development of prefabricated technology, the application scope of the technology is also expanded. ...With the continuous improvement of the production technology level of Chinas construction industry and the continuous development of prefabricated technology, the application scope of the technology is also expanded. In the construction of municipal bridge engineering, the prefabricated technology can be integrated and applied. This technology has obvious advantages compared with the traditional technology. The construction speed of prefabricated buildings is fast and the quality of the construction can be guaranteed, and the project construction meets the requirements of energy conservation and environmental protection. Therefore, it is necessary to analyze the development status of municipal bridge engineering construction and summarize the existing problems. The traditional technology and prefabricated technology are compared and analyzed to understand the construction advantages of prefabricated bridge, and the reasonable application strategies are put forward. Based on this, this paper discusses the application of prefabricated technology in municipal bridge engineering, in order to provide reference for relevant units.展开更多
With the continuous development of highway and bridge projects in China, the scale and scope of construction are constantly expanding, and people have increasingly high requirements for the quality of highway and brid...With the continuous development of highway and bridge projects in China, the scale and scope of construction are constantly expanding, and people have increasingly high requirements for the quality of highway and bridge projects. In order to meet peoples quality needs at this stage and ensure peoples travel safety, it is necessary to constantly strengthen the quality control of the project during the actual construction process, relevant staff should be able to deeply understand the types of accidents that are easy to occur in the construction process. At the same time, they should continue to deal with accidents through thinking about problems, learning from experience and strengthening management, so as to ensure the smooth construction of highway and bridge projects and promote the rapid development of Chinas highway and bridge industry. The article first analyzes the common accidents in the construction of highway bridge engineering, and then focuses on the treatment countermeasures of the common accidents in the construction of highway bridge engineering, which can be used as a reference for readers.展开更多
Effective application of digital integrated management and maintenance systems is essential for successful operation and maintenance management of bridge projects.This article analyzes the application strategy of such...Effective application of digital integrated management and maintenance systems is essential for successful operation and maintenance management of bridge projects.This article analyzes the application strategy of such systems.It provides an overview of comprehensive digital management and maintenance of bridges,an analysis of the basic components of the integrated management and maintenance system,and its application strategies.This study aims to offer guidance for the application of the system and to improve the quality of modern bridge engineering management and maintenance work.展开更多
Road bridge can provide convenient for people to travel, in its construction, related construction units to realize the important role of safety management, accurately grasp the construction key points, innovation and...Road bridge can provide convenient for people to travel, in its construction, related construction units to realize the important role of safety management, accurately grasp the construction key points, innovation and optimize safety management measures, strengthen safety management and quality control, to ensure the smooth construction of the project, maintenance personnel safety, make the project more durable, stable and safe. At the same time, in different regions, we should implement the basic principle of adjusting measures to local conditions and according to current conditions, save construction costs to a greater extent, focus on environmental protection, take more practical measures, so that the overall project can achieve better efficiency, and then provide necessary conditions for the embodiment of the comprehensive efficiency of the project.展开更多
文摘The purpose of this study is to analyze the application of ultrasonic non-destructive testing technology in bridge engineering.During the research phase,based on literature collection and reading,as well as the analysis of bridge inspection materials,the principle of ultrasonic non-destructive testing technology and its adaptability to bridge engineering are elaborated.Subsequently,starting from the preparation work before inspection until damage assessment,the entire process of ultrasonic non-destructive testing is studied,and finally,a technical system of ultrasonic non-destructive testing for bridge engineering that runs through the entire process is formed.It is hoped that this article can provide technical reference value for relevant units in China,and promote the high-quality development of China’s bridge engineering from a macro perspective.
文摘This paper conducts practical research on the application of steel fiber reinforced concrete construction technology in road and bridge engineering.The study emphasized in its core advantages of tensile strength,impact resistance,fatigue resistance and high toughness,and introduces its applications in scenarios such as bridge deck pavement,expansion joints and tunnel opening sections.The key points of construction techniques such as material ratio and fiber selection,mixing,pouring and vibration,as well as quality control difficulties and solutions such as steel fiber dispersion,shrinkage cracks and temperature control was analyzed.The development trends of intelligent material research and development and automated construction technology,and propose application suggestions for engineering design and construction management was discussed in this study,which can serve as a references to improve the quality of road and bridge engineering.
文摘A multi-level evaluation model for the superstructure of a damaged prestressed concrete girder or beam bridge is established, and the evaluation indices of the model as well as the rating standards are defined. A normal relative function about the evaluation indices of each element is developed to calculate the relative degree, and for each element there are no sub-level elements. When evaluating the elements in the sub-item level or the index level of the model, the weights of elements pertain to one adopted element, taking into account their degrees of deterioration. Since the relative degrees and structure evaluation scales on the damage conditions are applied to characterize the superstructure of damaged prestressed concrete girder bridges, this method can evaluate the prestressed structure in detail, and the evaluation results agree with the Code for Maintenance of Highway Bridges and Culvers （JTG Hll--2004 ）. Finally, a bridge in Jilin province is taken as an example, using the method developed to evaluate its damage conditions, which gives an effective way for bridge engineering.
基金The research was supported by the National Science Foundation of China(Grant No.51908068)the support from the Key Laboratory of Bridge Engineering Safety Control by Department of Education(Changsha University of Science&Technology).Industry Key Laboratory of Traffic Infrastructure Security Risk Management in Changsha University of Science and Technology(Grant Nos.19KF03,19KB02)Open Fund of Engineering Research Center of Catastrophic Prophylaxis and Treatment of Road&Traffic Safety of Ministry of Education(Grant No.KFJ190403).
文摘The steadily growing traffic load has resulted in lots of bridge collapse events over the past decades, especiallyfor short-to-medium span bridges. This study investigated probabilistic and dynamic traffic load effects on shortto-medium span bridges using practical heavy traffic data in China. Mathematical formulations for traffic-bridgecoupled vibration and probabilistic extrapolation were derived. A framework for extrapolating probabilistic anddynamic traffic load effect was presented to conduct an efficient and accurate extrapolation. An equivalent dynamicwheel load model was demonstrated to be feasible for short-to-medium span bridges. Numerical studies of twotypes of simply-supported bridges were conducted based on site-specific traffic monitoring data. Numerical resultsshow that the simulated samples and fitting lines follow a curve line in the Gumbel distribution coordinate system. Itcan be assumed that dynamic traffic load effects follow Gaussian distribution and the extreme value follows Gumbeldistribution. The equivalent probabilistic amplification factor is smaller than the individual dynamic amplificationfactor, which might be due to the variability of individual samples. Eurocode 1 is the most conservative specificationon vehicle load models, followed by the BS5400 specification. The D60-2015 specification in China and ASSHTOspecification provide lower conservative traffic load models.
基金Project of China International Science and Technology Cooperation under Grant No.2009DFA82480Science and Technology Project of Communications’ Construction in Western China,MOC under Grant No.2009318223094
文摘Laminated elastomeric bearings have been widely used for small-to-medium-span highway bridges in China, in which concrete shear keys are set transversely to prohibit large girder displacement. To evaluate bridge seismic responses more accurately, proper analytical models of bearings and shear keys should be developed. Based on a series of cyclic loading experiments and analyses, rational analytical models of laminated elastomeric bearings and shear keys, which can consider mechanical degradation, were developed. The effect of the mechanical degradation was investigated by examining the seismic response of a small-to-medium-span bridge in the transverse direction under a wide range of peak ground accelerations（PGA）. The damage mechanism for small-to-medium-span highway bridges was determined, which can explain the seismic damage investigation during earthquakes in recent years. The experimental results show that the mechanical properties of laminated elastomeric bearings will degrade due to friction sliding, but the degree of decrease is dependent upon the influencing parameters. It can be concluded that the mechanical degradation of laminated elastomeric bearings and shear keys play an important role in the seismic response of bridges. The degradation of mechanical properties of laminated elastomeric bearings and shear keys should be included to evaluate more precise bridge seismic performance.
基金National Science and Technology Support Program of China(No.2009BAG15B01)Key Programs for Science and Technology Development of Chinese Transportation Industry(No.2008-353-332-190)
文摘Building a reasonable and accurate finite element model is the first and critical step for structural analysis of complicated bridge. In this article, modeling assistant for continuous suspension with multi-pylon is developed based on .Net platform, with VB.Net, C# language and OpenGL graphic technique. With parameterized modeling method, finite element model of this kind of bridge can be built quickly and accurately, and multi-type element modeling with uniform parameters is realized. With advanced graphic technique, three-dimensional model graph can be real-timely previewed for intuitive data check. With an example of practice project, the accuracy and feasibility of this modeling method and practicality of this software are verified.
文摘In order to identify the shortcomings and weaknesses of bridge engineering construction quality in Zhejiang province, this paper firstly selects the quality criteriums of four bridge engineering construction quality criteriums, including concrete durability of outbound construction, construction of large steel box girder, construction of large concrete members and prestressed construction, based on the regional characteristics of Zhejiang province. Then, the quality index of construction projects is analyzed by benchmarking projects in the province, and the gap between the application of high-performance steel, the production and installation technology of steel box girder, the construction equipment of marine concrete components, the installation and tension technology of prestressed pipe and the international advanced level is found. On this basis, the paper puts forward the construction quality improvement strategies in three aspects: design concept, industrial construction level and achievement transformation.
文摘In order to realize the in-situ evaluation of reinforced concrete bridges subjected to fatigue for a long time or after earthquake, an evaluation method for cumulative damage of concrete structures based on unloading elastic modulus was proposed. First, according to the concrete stress-strain curve and the statistical relationship between residual strain and cumulative strain, the calculation method of static equivalent strain and residual strain concrete based on unloading elastic modulus and the method for estimating the strength of concrete after damage were proposed. The detailed steps of field test and analysis and the practical damage indicators of residual strain were given. Then, the evaluation method of existing stress and strain of Reinforced Concrete Bridge under dead load and the concept of “equivalent dead load bending moment” were put forward. On this basis, the paper analyzed the root cause of the decrease of bearing capacity of Reinforced Concrete Bridge after fatigue damage, and pointed out that the equivalent strain or residual strain of reinforced concrete increases under the fatigue effect, which led to the decreasing of actual live moment and deformation performance while the ultimate load-carrying capacity remained constant or very little decrease. The evaluation method of structure residual capacity was given, and through comparative analysis of eight T reinforced concrete beams that had been in service for 35 years with the static failure tests, the effectiveness of the method was verified.
文摘This article analyzes the application strategies of shotcrete anchor support technology using a highway bridge-tunnel construction project as an example.The article covers various strategies,including support plan formulation,mortar shotcrete anchor construction,grid steel frame construction,steel mesh construction,and concrete support construction.This analysis aims to provide a guideline for those interested in applying this technology and improving the quality and safety of highway bridges and tunnels construction.
文摘In recent years, the traffic pressure is increasing. It is of great practical significance to effectively relieve the traffic pressure, improve the transportation efficiency and speed up the road and bridge construction. In the concrete implementation process, not only technical support, but also safety management should be done well, because this is not only related to the quality of roads and bridges, but also closely related to the traffic safety of pedestrians and vehicles. Therefore, based on the problem, this paper puts forward some suggestions for follow-up reference.
文摘Highway bridge is the key component of infrastructure construction in China. The construction of highway plays a key role in promoting China's national economy. Implementing highway and bridge construction is an urgent task in China's socialist modernization. Among them, the roadbed and pavement construction technology has a certain influence on the level of road and bridge engineering. On this basis, this paper introduces the key points of subgrade and pavement construction, analyzes the problems in construction, introduces the main construction technologies of subgrade and pavement in detail, and discusses the application measures of subgrade and pavement construction technology, with a view to continuously improve the quality of road and bridge construction projects.
文摘This paper analyzes on the common diseases of the road and bridge engineering during the construction period, researches on the causes of these diseases, and puts forward some corresponding solutions for these diseases, so as to reduce the adverse effects of the road and bridge engineering diseases on the traffic safety problems. The construction treatment technology in road and bridge construction is elaborated and analyzed, so as to improve the construction quality of road and bridge engineering. It provides reference and ideas for improving the quality of road and bridge construction and improving the safety of China's transportation industry.
基金Chongqing Institute of Engineering Ideological and Political Teaching Demonstration Course Construction Project(KC20230010)。
文摘The questions of what kind of individuals university education should cultivate,how to cultivate them,and for whom they are being trained are pressing issues that require immediate solutions.Implementing ideological and political education is a fundamental way to address these challenges.Integrating political education into professional courses is just as important as imparting knowledge,fostering interest,transmitting values,and shaping students’character and spirit.The excavation of ideological and political elements in bridge engineering courses should comprehensively consider the dependent subject of ideological and political elements,the source of cases,the depth of excavation,the trade-offs between courses,the commonality and multifaceted nature of ideological and political elements,as well as the two ways of ideological and political elements integration.Ideological and political elements should be integrated into all stages of classroom lectures,course assignments,final examinations,course design,discipline competitions,school-enterprise cooperation,etc.,so as to achieve the effect of educating people in the whole process.
文摘Cracking during construction is a common occurrence in modern bridge engineering that can directly impact the overall safety of the bridge.Therefore,it is essential to focus on preventing and controlling cracks.As the construction technology for bridge engineering has evolved,the internal quality of construction has significantly improved.However,the appearance quality remains a crucial factor that reflects the technical expertise of a construction company.Therefore,minimizing cracks and improving the appearance quality of concrete are critical issues that require the attention of construction units,supervision departments,and construction companies.This article will analyze the causes of cracking and suggest corresponding prevention and treatment methods.
文摘The construction of perfect highway and bridge engineering facilities can realize the resource transfer and cultural transmission between regions, and improve the social and economic benefits. Therefore, China attaches great importance to the construction of highway and bridge engineering. Because the construction of highway and bridge engineering is affected by the regional terrain and natural climate, it is bound to face many influencing factors in the process of construction and management, among which the subgrade is one of the most influential factors for highway and bridge engineering. Therefore, it is necessary to fully implement quality control, and explore the meaning and practical value of quality control, which is the basic premise to strengthen the effectiveness of quality management.
文摘In the current new form of social development, the relevant staff can effectively manage the contracts related to road and bridge construction cost, and put forward the corresponding analysis and countermeasures for the risks existing in its management center, so as to effectively control the overall construction cost to a certain extent, and at the same time, can also pre-judge the related risks that may occur in the process, so that the overall construction development presents a good development trend. In this regard, the relevant staff must form a comprehensive understanding of the relationship between road and bridge project cost and contract management under the new form, and analyze the risks and measures to a certain extent if they want to effectively achieve the above objectives.
文摘With the continuous improvement of the production technology level of Chinas construction industry and the continuous development of prefabricated technology, the application scope of the technology is also expanded. In the construction of municipal bridge engineering, the prefabricated technology can be integrated and applied. This technology has obvious advantages compared with the traditional technology. The construction speed of prefabricated buildings is fast and the quality of the construction can be guaranteed, and the project construction meets the requirements of energy conservation and environmental protection. Therefore, it is necessary to analyze the development status of municipal bridge engineering construction and summarize the existing problems. The traditional technology and prefabricated technology are compared and analyzed to understand the construction advantages of prefabricated bridge, and the reasonable application strategies are put forward. Based on this, this paper discusses the application of prefabricated technology in municipal bridge engineering, in order to provide reference for relevant units.
文摘With the continuous development of highway and bridge projects in China, the scale and scope of construction are constantly expanding, and people have increasingly high requirements for the quality of highway and bridge projects. In order to meet peoples quality needs at this stage and ensure peoples travel safety, it is necessary to constantly strengthen the quality control of the project during the actual construction process, relevant staff should be able to deeply understand the types of accidents that are easy to occur in the construction process. At the same time, they should continue to deal with accidents through thinking about problems, learning from experience and strengthening management, so as to ensure the smooth construction of highway and bridge projects and promote the rapid development of Chinas highway and bridge industry. The article first analyzes the common accidents in the construction of highway bridge engineering, and then focuses on the treatment countermeasures of the common accidents in the construction of highway bridge engineering, which can be used as a reference for readers.
文摘Effective application of digital integrated management and maintenance systems is essential for successful operation and maintenance management of bridge projects.This article analyzes the application strategy of such systems.It provides an overview of comprehensive digital management and maintenance of bridges,an analysis of the basic components of the integrated management and maintenance system,and its application strategies.This study aims to offer guidance for the application of the system and to improve the quality of modern bridge engineering management and maintenance work.
文摘Road bridge can provide convenient for people to travel, in its construction, related construction units to realize the important role of safety management, accurately grasp the construction key points, innovation and optimize safety management measures, strengthen safety management and quality control, to ensure the smooth construction of the project, maintenance personnel safety, make the project more durable, stable and safe. At the same time, in different regions, we should implement the basic principle of adjusting measures to local conditions and according to current conditions, save construction costs to a greater extent, focus on environmental protection, take more practical measures, so that the overall project can achieve better efficiency, and then provide necessary conditions for the embodiment of the comprehensive efficiency of the project.
