In general,the material properties,loads,resistance of the prestressed concrete continuous rigid frame bridge in different construction stages are time-varying.So,it is essential to monitor the internal force state wh...In general,the material properties,loads,resistance of the prestressed concrete continuous rigid frame bridge in different construction stages are time-varying.So,it is essential to monitor the internal force state when the bridge is in construction.Among them,how to assess the safety is one of the challenges.As the continuous monitoring over a long-term period can increase the reliability of the assessment,so,based on a large number of monitored strain data collected from the structural health monitoring system(SHMS)during construction,a calculation method of the punctiform time-varying reliability is proposed in this paper to evaluate the stress state of this type bridge in cantilever construction stage by using the basic reliability theory.At the same time,the optimal stress distribution function in the bridge mid-span base plate is determined when the bridge is closed.This method can provide basis and direction for the internal force control of this type bridge in construction process.So,it can reduce the bridge safety and quality accidents in construction stages.展开更多
The paper discussed about the staged construction analysis of two-span precast-girder bridge considering time dependent effects, namely creep and aging of concrete. Results obtained showed that it is very important to...The paper discussed about the staged construction analysis of two-span precast-girder bridge considering time dependent effects, namely creep and aging of concrete. Results obtained showed that it is very important to consider construction stage in the analysis of bridge because of stress resultants which are important in design process and very different from those obtained without the consideration of construction stage. This fact is especially important for bridges, because construction period continues along time and loads may change during the construction period and after.展开更多
The rapid development of contemporary social economy promotes the increasing number of construction projects. However, with the rapid development of China's construction industry, there will be some problems, one ...The rapid development of contemporary social economy promotes the increasing number of construction projects. However, with the rapid development of China's construction industry, there will be some problems, one of which is the cost management in the construction stage. At present, in order to improve the profit of the construction project, the cost of the project cost needs to be reduced as much as possible, but the quality assurance of the construction project is the premise, and the project cost fluctuates greatly in the construction stage of the construction project, which also has a great impact on the construction. This paper studies the cost control in the construction stage for reference.展开更多
The construction stage of civil engineering is the longest lasting stage in the life cycle of engineering construction, the most difficult to manage, and the most direct impact on the quality of the project. There are...The construction stage of civil engineering is the longest lasting stage in the life cycle of engineering construction, the most difficult to manage, and the most direct impact on the quality of the project. There are a series of problems to be solved. In order to improve the market core competitiveness, enterprise will change the traditional management and the construction mode, because nowadays information management technology already covered in various professional fields. With the technological innovation of the construction industry, the information technology led by BIM technology has also developed vigorously in the construction industry, and its rational application has become an industry trend. In the implementation of project construction management, through the application of BIM technology's unique functions such as simulation, coordination, visibility, optimization, dynamics and information sharing. Many problems in the process of project construction have been solved and substantive results have been obtained, and it plays a vital role in the control of progress, quality, safety and cost in construction and production activities. Therefore, the application of BIM technology in the construction stage is of great significance. This paper studies the main application value and application mode of BIM technology in civil construction stage.展开更多
With the continuous development of the times, China's housing construction project management has undergone tremendous changes, the current stage of the management work is also in a state of gradual progress. In t...With the continuous development of the times, China's housing construction project management has undergone tremendous changes, the current stage of the management work is also in a state of gradual progress. In the whole process of construction project development, the core link is the management of project cost, which is also an important embodiment of the realization of fine management of project cost. With the gradual opening of the economic market, the number of construction enterprises is also increasing, and the competition in the whole market is becoming more and more fierce. From the perspective of the long-term development of the construction industry, we should not only pay enough attention to the construction quality and safety management, but also strengthen the cost management of the construction project. Because there are many construction contents in the design of the housing construction project, there are also many contents in the project budget, which brings great difficulty to the development of the whole project cost work.展开更多
Highway engineering requires higher investment and requires a long time of management compared to other construction projects.There are many factors that affect the project cost during the engineering construction sta...Highway engineering requires higher investment and requires a long time of management compared to other construction projects.There are many factors that affect the project cost during the engineering construction stage of a highway.The effective development of cost management in the construction phase of highway engineering under the list pricing model can avoid unnecessary waste and help control the cost of highway engineering.However,there are still some problems in the development of cost management in the construction phase of highway engineering,which will affect the role of the list-based pricing mode in cost management.This paper explores and analyzes the advantages of the list pricing model and the problems existing in the cost management of the highway engineering construction stage under the list pricing model,and proposes effective management strategies to improve cost management of the highway engineering construction stage.展开更多
At present, the construction industry is gradually moving towards informatization. Therefore, it is particularly important to deeply explore the application of BIM technology in the installation of construction machin...At present, the construction industry is gradually moving towards informatization. Therefore, it is particularly important to deeply explore the application of BIM technology in the installation of construction machinery and equipment to provide reference for engineering construction. BIM technology has many technical advantages in the field of electromechanical construction. This is a new management mode of electromechanical engineering construction stage and the key to improve the standardization level of engineering construction management. At present, many construction units in Chinas electromechanical industry have begun to practice the application of BIM technology. BIM technology is used to comprehensively manage the construction of electromechanical equipment, including the arrangement of power and water pipes, installation of various water supply and drainage facilities, control of construction progress and supervision of construction quality, forming a unified control system. Therefore, the management of construction machinery engineering is more simple, efficient, reasonable and orderly. BIM technology has obvious advantages in the electromechanical engineering construction stage and will be adopted by more and more construction units. It is of great significance to promote the development of electromechanical engineering in our country.展开更多
Under the impetus of the rapid development of social economy, construction industry also obtained fast development, and the construction scale and construction fund investment is growing. But because of construction e...Under the impetus of the rapid development of social economy, construction industry also obtained fast development, and the construction scale and construction fund investment is growing. But because of construction engineering project involved in the construction of content and links very much, its impact factor is also very much. It has a long construction cycle at the same time. There are some difficulties in makeing the construction unit in capital investment and cost control. So to strengthen the project cost management of construction stage is very important, which not only can effectively reduce the construction cost of construction project, also can make construction enterprises to maintain flexible flow of funds, make construction enterprise need to bear the fund pressure to reduce as much as possible.展开更多
With the development of our country's economy, the industry scale in the field of construction engineering is also growing. More and more companies are committed to developing the construction industry. The qualit...With the development of our country's economy, the industry scale in the field of construction engineering is also growing. More and more companies are committed to developing the construction industry. The quality problem of every link in the construction project has an important impact on the whole construction project. Therefore, the construction quality of each link must be strictly controlled in the construction process of the construction project to ensure the quality problem of the whole construction project. Next, the article focuses on the construction stage of water supply and drainage engineering supervision quality control.展开更多
The p eriod of"The 13th Five-Year Plan"for national socioeconomic development(2016-2020)is a decisive stage of completion of all-round construction of a moderately prosperous society in China,and the year of...The p eriod of"The 13th Five-Year Plan"for national socioeconomic development(2016-2020)is a decisive stage of completion of all-round construction of a moderately prosperous society in China,and the year of 2016 is the first annum of this decisive stage.The Central Committee of the Communist Party of China(CPC)headed by General Secretary Xi Jinping has,with a new stance and new ideas,set strategic tasks展开更多
Project cost can control the input in construction project and improve economic benefits of construction enterprises,so it is an important section of construction engineering.Reasonable control and management of proje...Project cost can control the input in construction project and improve economic benefits of construction enterprises,so it is an important section of construction engineering.Reasonable control and management of project cost is the principle that building units must obey in the whole process of project,particularly in the construction stage,so it is extremely important to control and manage the project cost.This paper first analyzed possible causes for the unreasonable cost of construction projects,and put forward pertinent strategies for the control and management of construction project cost.展开更多
The building industry has experienced in recent years a strong growth in demand in general and in the case of reinforced concrete buildings this increase has been more marked. This fact has also contributed to acceler...The building industry has experienced in recent years a strong growth in demand in general and in the case of reinforced concrete buildings this increase has been more marked. This fact has also contributed to accelerate all stages of the production process of these constructions with more pronounced effects on the methodologies used in the constructive steps that influence directly the structural design of the building. Structures loaded at ever earlier ages, in which the strength and deformation properties of materials are not yet sufficiently mature. It is a variable that needs to be taken into account already in the design phase so that the concrete structure behaves within acceptable level of reliability taking into account design code recommendations for service life. To understand the importance of constructive effects and to assess its magnitude in the execution of reinforced concrete buildings, this paper presents result from nonlinear analyses using finite element method adopting an approach commonly referred as staged construction applied to a typical building found in the practice. The effects of creep and shrinkage were considered and the results obtained demonstrate that the strains due to constructive effects can, in certain cases, assume representative values which, if ignored, can lead to important pathologies in the building.展开更多
Reservoir plays an important role in the allocation and rational use of water resources, especially water resources in China are centrally distributed in the western region, and large reservoirs should be built to mee...Reservoir plays an important role in the allocation and rational use of water resources, especially water resources in China are centrally distributed in the western region, and large reservoirs should be built to meet the people’s livelihood needs of each region.</span><span style="white-space:normal;font-size:10pt;font-family:""> </span><span style="white-space:normal;font-size:10pt;font-family:"">The construction of large reservoirs has numerous risks, the clarity of these risks helps us to better plan and make decisions before implementing the project.</span><span style="white-space:normal;font-size:10pt;font-family:""> </span><span style="white-space:normal;font-size:10pt;font-family:"">Search through literature reading and professional information, determined 11 risk factors in the construction phase of the reservoir construction project case, construct a risk influencing factor system under the application of ISM (Interpretative Structural Modeling). Studies have shown that the risks of strategic guidelines and policies and changes in infrastructure planning have the deepest impact on construction risk management. Among them, the strategic policy risk is the root impact, and the impact of the infrastructure planning change risk has a far-reaching impact. Through the above conclusions, providing management countermeasures and suggestions for the risk control of reservoir construction.展开更多
For construction engineering, quality is a very important factor in the construction process, which has a certain impact on the economic benefits and competitive strength of the whole enterprise. If there are quality ...For construction engineering, quality is a very important factor in the construction process, which has a certain impact on the economic benefits and competitive strength of the whole enterprise. If there are quality problems in the process of engineering construction, it will lead to a negative impact on people in the process of use. Therefore, in the whole process of engineering construction, it is necessary to strengthen the quality control, ensure the safety and quality of the project, and promote the steady development of the construction industry.展开更多
The construction stage is the process of converting drawings into construction entities, which is the most expensive link in the whole process of the project, and also the key stage to determine the final profit incom...The construction stage is the process of converting drawings into construction entities, which is the most expensive link in the whole process of the project, and also the key stage to determine the final profit income of construction enterprises. Therefore, it is very important to control the cost of the construction stage. How to reduce the cost of the project and obtain a higher profit level under the premise of ensuring the quality and progress of the project is an urgent problem for the construction enterprises in China. In this paper, the theoretical basis, principles and methods of cost control in the construction stage are discussed, including: the concept of cost control is fuzzy, there are misunderstandings in understanding;the waste of labor, materials and machinery is serious;the construction scheme is not rigorous and the construction technology is backward;the construction site management is not in place;the importance of construction site visa and design change is ignored. And put forward their own views and suggestions. Such as paying attention to the construction site visa and design change;strengthening the construction site management;selecting reasonable construction scheme preparation and applying new technology;strictly controlling the labor cost, material cost and machinery cost;strengthening the staff's awareness of cost control.展开更多
As one of the important projects for the development of lithium industry and the construction of the 100 billion yuan lithium industry base in Qinghai Province,BYD lithium industry project has started construction in ...As one of the important projects for the development of lithium industry and the construction of the 100 billion yuan lithium industry base in Qinghai Province,BYD lithium industry project has started construction in Xining,Haidong and Haixi.The starting of equipment commissioning,plant construction and making technology reach the standard indicates that Qinghai’s 100 billion yuan lithium industry construction has entered a new stage of vigorous development.展开更多
文摘In general,the material properties,loads,resistance of the prestressed concrete continuous rigid frame bridge in different construction stages are time-varying.So,it is essential to monitor the internal force state when the bridge is in construction.Among them,how to assess the safety is one of the challenges.As the continuous monitoring over a long-term period can increase the reliability of the assessment,so,based on a large number of monitored strain data collected from the structural health monitoring system(SHMS)during construction,a calculation method of the punctiform time-varying reliability is proposed in this paper to evaluate the stress state of this type bridge in cantilever construction stage by using the basic reliability theory.At the same time,the optimal stress distribution function in the bridge mid-span base plate is determined when the bridge is closed.This method can provide basis and direction for the internal force control of this type bridge in construction process.So,it can reduce the bridge safety and quality accidents in construction stages.
文摘The paper discussed about the staged construction analysis of two-span precast-girder bridge considering time dependent effects, namely creep and aging of concrete. Results obtained showed that it is very important to consider construction stage in the analysis of bridge because of stress resultants which are important in design process and very different from those obtained without the consideration of construction stage. This fact is especially important for bridges, because construction period continues along time and loads may change during the construction period and after.
文摘The rapid development of contemporary social economy promotes the increasing number of construction projects. However, with the rapid development of China's construction industry, there will be some problems, one of which is the cost management in the construction stage. At present, in order to improve the profit of the construction project, the cost of the project cost needs to be reduced as much as possible, but the quality assurance of the construction project is the premise, and the project cost fluctuates greatly in the construction stage of the construction project, which also has a great impact on the construction. This paper studies the cost control in the construction stage for reference.
文摘The construction stage of civil engineering is the longest lasting stage in the life cycle of engineering construction, the most difficult to manage, and the most direct impact on the quality of the project. There are a series of problems to be solved. In order to improve the market core competitiveness, enterprise will change the traditional management and the construction mode, because nowadays information management technology already covered in various professional fields. With the technological innovation of the construction industry, the information technology led by BIM technology has also developed vigorously in the construction industry, and its rational application has become an industry trend. In the implementation of project construction management, through the application of BIM technology's unique functions such as simulation, coordination, visibility, optimization, dynamics and information sharing. Many problems in the process of project construction have been solved and substantive results have been obtained, and it plays a vital role in the control of progress, quality, safety and cost in construction and production activities. Therefore, the application of BIM technology in the construction stage is of great significance. This paper studies the main application value and application mode of BIM technology in civil construction stage.
文摘With the continuous development of the times, China's housing construction project management has undergone tremendous changes, the current stage of the management work is also in a state of gradual progress. In the whole process of construction project development, the core link is the management of project cost, which is also an important embodiment of the realization of fine management of project cost. With the gradual opening of the economic market, the number of construction enterprises is also increasing, and the competition in the whole market is becoming more and more fierce. From the perspective of the long-term development of the construction industry, we should not only pay enough attention to the construction quality and safety management, but also strengthen the cost management of the construction project. Because there are many construction contents in the design of the housing construction project, there are also many contents in the project budget, which brings great difficulty to the development of the whole project cost work.
文摘Highway engineering requires higher investment and requires a long time of management compared to other construction projects.There are many factors that affect the project cost during the engineering construction stage of a highway.The effective development of cost management in the construction phase of highway engineering under the list pricing model can avoid unnecessary waste and help control the cost of highway engineering.However,there are still some problems in the development of cost management in the construction phase of highway engineering,which will affect the role of the list-based pricing mode in cost management.This paper explores and analyzes the advantages of the list pricing model and the problems existing in the cost management of the highway engineering construction stage under the list pricing model,and proposes effective management strategies to improve cost management of the highway engineering construction stage.
文摘At present, the construction industry is gradually moving towards informatization. Therefore, it is particularly important to deeply explore the application of BIM technology in the installation of construction machinery and equipment to provide reference for engineering construction. BIM technology has many technical advantages in the field of electromechanical construction. This is a new management mode of electromechanical engineering construction stage and the key to improve the standardization level of engineering construction management. At present, many construction units in Chinas electromechanical industry have begun to practice the application of BIM technology. BIM technology is used to comprehensively manage the construction of electromechanical equipment, including the arrangement of power and water pipes, installation of various water supply and drainage facilities, control of construction progress and supervision of construction quality, forming a unified control system. Therefore, the management of construction machinery engineering is more simple, efficient, reasonable and orderly. BIM technology has obvious advantages in the electromechanical engineering construction stage and will be adopted by more and more construction units. It is of great significance to promote the development of electromechanical engineering in our country.
文摘Under the impetus of the rapid development of social economy, construction industry also obtained fast development, and the construction scale and construction fund investment is growing. But because of construction engineering project involved in the construction of content and links very much, its impact factor is also very much. It has a long construction cycle at the same time. There are some difficulties in makeing the construction unit in capital investment and cost control. So to strengthen the project cost management of construction stage is very important, which not only can effectively reduce the construction cost of construction project, also can make construction enterprises to maintain flexible flow of funds, make construction enterprise need to bear the fund pressure to reduce as much as possible.
文摘With the development of our country's economy, the industry scale in the field of construction engineering is also growing. More and more companies are committed to developing the construction industry. The quality problem of every link in the construction project has an important impact on the whole construction project. Therefore, the construction quality of each link must be strictly controlled in the construction process of the construction project to ensure the quality problem of the whole construction project. Next, the article focuses on the construction stage of water supply and drainage engineering supervision quality control.
文摘The p eriod of"The 13th Five-Year Plan"for national socioeconomic development(2016-2020)is a decisive stage of completion of all-round construction of a moderately prosperous society in China,and the year of 2016 is the first annum of this decisive stage.The Central Committee of the Communist Party of China(CPC)headed by General Secretary Xi Jinping has,with a new stance and new ideas,set strategic tasks
文摘Project cost can control the input in construction project and improve economic benefits of construction enterprises,so it is an important section of construction engineering.Reasonable control and management of project cost is the principle that building units must obey in the whole process of project,particularly in the construction stage,so it is extremely important to control and manage the project cost.This paper first analyzed possible causes for the unreasonable cost of construction projects,and put forward pertinent strategies for the control and management of construction project cost.
文摘The building industry has experienced in recent years a strong growth in demand in general and in the case of reinforced concrete buildings this increase has been more marked. This fact has also contributed to accelerate all stages of the production process of these constructions with more pronounced effects on the methodologies used in the constructive steps that influence directly the structural design of the building. Structures loaded at ever earlier ages, in which the strength and deformation properties of materials are not yet sufficiently mature. It is a variable that needs to be taken into account already in the design phase so that the concrete structure behaves within acceptable level of reliability taking into account design code recommendations for service life. To understand the importance of constructive effects and to assess its magnitude in the execution of reinforced concrete buildings, this paper presents result from nonlinear analyses using finite element method adopting an approach commonly referred as staged construction applied to a typical building found in the practice. The effects of creep and shrinkage were considered and the results obtained demonstrate that the strains due to constructive effects can, in certain cases, assume representative values which, if ignored, can lead to important pathologies in the building.
文摘Reservoir plays an important role in the allocation and rational use of water resources, especially water resources in China are centrally distributed in the western region, and large reservoirs should be built to meet the people’s livelihood needs of each region.</span><span style="white-space:normal;font-size:10pt;font-family:""> </span><span style="white-space:normal;font-size:10pt;font-family:"">The construction of large reservoirs has numerous risks, the clarity of these risks helps us to better plan and make decisions before implementing the project.</span><span style="white-space:normal;font-size:10pt;font-family:""> </span><span style="white-space:normal;font-size:10pt;font-family:"">Search through literature reading and professional information, determined 11 risk factors in the construction phase of the reservoir construction project case, construct a risk influencing factor system under the application of ISM (Interpretative Structural Modeling). Studies have shown that the risks of strategic guidelines and policies and changes in infrastructure planning have the deepest impact on construction risk management. Among them, the strategic policy risk is the root impact, and the impact of the infrastructure planning change risk has a far-reaching impact. Through the above conclusions, providing management countermeasures and suggestions for the risk control of reservoir construction.
文摘For construction engineering, quality is a very important factor in the construction process, which has a certain impact on the economic benefits and competitive strength of the whole enterprise. If there are quality problems in the process of engineering construction, it will lead to a negative impact on people in the process of use. Therefore, in the whole process of engineering construction, it is necessary to strengthen the quality control, ensure the safety and quality of the project, and promote the steady development of the construction industry.
文摘The construction stage is the process of converting drawings into construction entities, which is the most expensive link in the whole process of the project, and also the key stage to determine the final profit income of construction enterprises. Therefore, it is very important to control the cost of the construction stage. How to reduce the cost of the project and obtain a higher profit level under the premise of ensuring the quality and progress of the project is an urgent problem for the construction enterprises in China. In this paper, the theoretical basis, principles and methods of cost control in the construction stage are discussed, including: the concept of cost control is fuzzy, there are misunderstandings in understanding;the waste of labor, materials and machinery is serious;the construction scheme is not rigorous and the construction technology is backward;the construction site management is not in place;the importance of construction site visa and design change is ignored. And put forward their own views and suggestions. Such as paying attention to the construction site visa and design change;strengthening the construction site management;selecting reasonable construction scheme preparation and applying new technology;strictly controlling the labor cost, material cost and machinery cost;strengthening the staff's awareness of cost control.
文摘As one of the important projects for the development of lithium industry and the construction of the 100 billion yuan lithium industry base in Qinghai Province,BYD lithium industry project has started construction in Xining,Haidong and Haixi.The starting of equipment commissioning,plant construction and making technology reach the standard indicates that Qinghai’s 100 billion yuan lithium industry construction has entered a new stage of vigorous development.
