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Time-varying Reliability Analysis of Long-span Continuous Rigid Frame bridge under Cantilever Construction Stage based on the Monitored Strain Data 被引量:1
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作者 Yinghua Li Kesheng Peng +1 位作者 Lurong Cai Junyong He 《Journal of Architectural Environment & Structural Engineering Research》 2020年第1期5-16,共12页
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
关键词 Continuous rigid frame bridge Structural health monitoring construction stage Punctiform time-varying reliability Strain data preprocessing
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The Spatiotemporal Construction and Landscape Framing of Cultural Micro-Dramas
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作者 Chen Haiyan Li Yufen 《Contemporary Social Sciences》 2025年第2期1-11,共11页
As an emerging media format with immense growth potential,micro-dramas(MDs)carry the critical mission of inheriting and innovating China’s fine traditional culture in the new era.From the three dimensions of time,spa... As an emerging media format with immense growth potential,micro-dramas(MDs)carry the critical mission of inheriting and innovating China’s fine traditional culture in the new era.From the three dimensions of time,space,and landscape in media geography,the pathways for cultural inheritance and innovation through MDs can be summarized as follows:Temporally,cultural MDs construct cultural narratives from the“past”to the“future;”spatially,they build immersive cultural spaces blending reality and imagination,enhancing viewers’audiovisual experiences;through the interplay of time and space,they create diversified cultural landscapes on new media platforms,revitalize enduring cultural memories and foster a sense of community for the Chinese nation through media innovation. 展开更多
关键词 cultural micro-dramas China’s fine traditional culture sense of community for the Chinese nation spatiotemporal construction landscape framing
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Research on Construction Technology of Building Engineering Frame Structure
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作者 NIUBowen 《外文科技期刊数据库(文摘版)工程技术》 2022年第8期177-180,共4页
In recent years, the construction industry has been developing continuously. Although it has achieved good achievements, it has also exposed many problems. Especially in the construction process of the engineering fra... In recent years, the construction industry has been developing continuously. Although it has achieved good achievements, it has also exposed many problems. Especially in the construction process of the engineering frame structure of the construction project, there are some problems in the construction technology and management and control . In the future development process, the construction technology should be gradually improved, and the construction process should be strictly controlled to ensure the construction quality of the building structure. At the same time, we must adhere to the times and use modern construction equipment and construction technology to contribute to the rapid development of the construction industry. 展开更多
关键词 construction engineering frame structure building construction technology
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Analysis of Construction Technology of Frame Shear Wall Structure
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作者 WANG Bo 《外文科技期刊数据库(文摘版)工程技术》 2021年第1期211-216,共6页
With the development of the construction industry and the continuous advancement of the urbanization process, the number of buildings is increasing, and the load-bearing and load-bearing design technology is improving... With the development of the construction industry and the continuous advancement of the urbanization process, the number of buildings is increasing, and the load-bearing and load-bearing design technology is improving. The application of reinforced concrete shear wall structure has gradually become the mainstream trend of the industry. It has great advantages in practicability and applicability and reduces the related economic costs. Combined with the application of frame shear wall structure in the construction process, this paper probes into the relevant construction technical points, analyzes the corresponding quality control measures and puts forward some opinions and suggestions for reference. 展开更多
关键词 frame shear wall STRUCTURE construction technology
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Prefabricated Construction of Reinforced Concrete Frame Structure with High Prefabrication Rate
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作者 LOU Taoqun 《外文科技期刊数据库(文摘版)工程技术》 2021年第6期304-308,共9页
In this paper, the structural form of the project is frame structure, and the prefabrication rate is 80%. The main structures such as column, beam, laminated plate, balcony plate, toilet plate, exterior wall plate, gu... In this paper, the structural form of the project is frame structure, and the prefabrication rate is 80%. The main structures such as column, beam, laminated plate, balcony plate, toilet plate, exterior wall plate, gutter and parapet and so on are prefabricated components. According to the construction organization process of the project, the construction process of the assembled integral concrete frame structure is discussed. Firstly, the key preparation work in the early stage of prefabricated construction site is analyzed from three aspects: construction flow section division, component yard layout and component delivery plan. Secondly, the paper analyzes the construction organization process of the project, focusing on the interpenetration of construction processes. Finally, considering the key construction procedures and main influencing factors, the construction methods and solutions are put forward and applied to improve the adjustment of column reserved reinforcement, vertical grouting connection of precast column, supporting mode of external retaining wall of frame structure, hoisting mode of high prefabricated component and special planning of prefabricated construction with BIM Technology. For the next step in-depth study of the prefabricated construction technology and provide the basis for guiding the prefabricated construction of frame structure. 展开更多
关键词 high prefabrication rate frame structure assembly construction BIM technology application
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Discussion on Construction Technology and Welding Deformation of High-Rise Steel Frame Structure
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作者 Sijin He Xinzhong Leng 《Journal of World Architecture》 2023年第5期23-28,共6页
Because of urbanization,land resources in China’s cities has become increasingly scarce.Therefore,modern buildings are becoming taller,making high-rise steel frame structures the new favorite of the construction indu... Because of urbanization,land resources in China’s cities has become increasingly scarce.Therefore,modern buildings are becoming taller,making high-rise steel frame structures the new favorite of the construction industry.However,the construction of high-rise steel frame structures requires advanced technology.If the construction technology is effectively implemented and the welding techniques of the construction personnel align with the requirements for high-rise steel frame structures,it can help mitigate deformations in the steel structure,thus preserving the overall construction quality of high-rise steel frame structures.To enhance the applicability of steel frame structures in high-rise buildings,this paper focuses on analyzing the optimization path for the construction process of high-rise steel frame structures.It introduces a tailored approach to control welding-induced deformations in steel frame structures,aiming to make a valuable contribution to the advancement of China’s construction industry. 展开更多
关键词 High-rise steel frame structure construction technology Welding deformation Structural stability
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Groundwater flow analysis in the coastal multi-layer aquifer at the planned construction site of subsurface dam
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《Global Geology》 1998年第1期5-5,共1页
关键词 FLOW Groundwater flow analysis in the coastal multi-layer aquifer at the planned construction site of subsurface dam
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Research on Cross Construction Technology of Three - dimensional Multi-storey River Crossing Urban Bridge
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作者 CAI Youhua 《外文科技期刊数据库(文摘版)工程技术》 2021年第12期1245-1249,共8页
Based on an expressway project in Hangzhou, this paper analyzes and studies the cross construction of one section of three-dimensional multi-storey bridge across the river, optimizes the construction organization and ... Based on an expressway project in Hangzhou, this paper analyzes and studies the cross construction of one section of three-dimensional multi-storey bridge across the river, optimizes the construction organization and arrangement, and cross-constructs the ground road framing bridge and the upper elevated bridge, so as to reduce the mutual interference in the cross construction process through scientific construction techniques, guarantee the bridge engineering quality and reduce the impact on urban traffic. Through the discussion of cross-engineering construction technology in this paper, it is expected to provide experience for similar bridge construction in China. 展开更多
关键词 river-crossing bridge three-dimensional multi-layer cross construction
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Study on Structural Design of Composite Building with Multi-layer Steel Structure Module and Steel Frame
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作者 LIU Shuai 《外文科技期刊数据库(文摘版)工程技术》 2021年第1期659-663,共5页
With the continuous improvement of China's science and technology, the design method of steel structure is also more and more, how to better apply the module building design method to the related buildings, is the... With the continuous improvement of China's science and technology, the design method of steel structure is also more and more, how to better apply the module building design method to the related buildings, is the current issue to focus on consideration. Therefore, this paper will focus on the design method of multi-layer steel structure module and steel frame composite building structure, and analyze and study its structure, so as to improve the utilization rate of steel structure and promote the development of the construction industry. 展开更多
关键词 multi-layer steel structure module steel frame composite design steel structure
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The Construction Technology of Freeform Surface Spatial Bending-Torsion Steel Structure
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作者 Tong Lu Shuai Wang +3 位作者 Ke-yang Wu Chen Liu Zhen-min Wang Chen Qian 《Journal of World Architecture》 2022年第4期53-60,共8页
Taking the construction project of the National Cybersecurity Talents and Innovation Base as an example,this paper studies the construction technology of freeform surface spatial bending-torsion steel structure based ... Taking the construction project of the National Cybersecurity Talents and Innovation Base as an example,this paper studies the construction technology of freeform surface spatial bending-torsion steel structure based on structural design model transformation,including the parametric modeling of deepening design model,computer-aided bending and torsion frame production,flexible docking in the bending-torsion combination unit,and welding stress deformation,in hope to provide reference for similar projects in the future. 展开更多
关键词 Freeform surface Spatial bending-torsion steel structure construction technology Parametric modeling Bending and twisting frame
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Integrating Quantum Mechanics and the Advanced Observer Model: A New Paradigm for Reality Construction
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作者 Joseph H. C. Wong 《Journal of Quantum Information Science》 2024年第4期158-195,共38页
This paper introduces a groundbreaking synthesis of fundamental quantum mechanics with the Advanced Observer Model (AOM), presenting a unified framework that reimagines the construction of reality. AOM highlights the ... This paper introduces a groundbreaking synthesis of fundamental quantum mechanics with the Advanced Observer Model (AOM), presenting a unified framework that reimagines the construction of reality. AOM highlights the pivotal role of the observer in shaping reality, where classical notions of time, space, and energy are reexamined through the quantum lens. By engaging with key quantum equations—such as the Schrödinger equation, Heisenberg uncertainty principle, and Dirac equation—the paper demonstrates how AOM unifies the probabilistic nature of quantum mechanics with the determinism of classical physics. Central to this exploration is the Sequence of Quantum States (SQS) and Constant Frame Rate (CFR), which align with concepts like quantum superposition, entanglement, and wave function collapse. The model’s implications extend to how observers perceive reality, proposing that interference patterns between wave functions form the foundation of observable phenomena. By offering a fresh perspective on the interplay between determinacy and indeterminacy, AOM lays a robust theoretical foundation for future inquiry into quantum physics and the philosophy of consciousness. 展开更多
关键词 Advanced Observer Model (AOM) Quantum Mechanics Reality construction Sequence of Quantum States (SQS) Constant frame Rate (CFR) Wave Function Collapse Quantum Superposition Quantum Entanglement Observer Effect Determinacy vs. Indeterminacy ħ/CFR Model
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关于型为1~nu^1的Frame MOLS的谱(英文)
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作者 徐允庆 彭玉成 《信阳师范学院学报(自然科学版)》 CAS 1999年第4期373-377,共5页
由 I S O L S的存在性可知除去 F M O L S(16)不存在和另外 15 个可能的例外的情况: (n,u)= (2u + 2,u),u ∈{2,4,6,8,10,14,16,18,20,22,26,28,32,34,46... 由 I S O L S的存在性可知除去 F M O L S(16)不存在和另外 15 个可能的例外的情况: (n,u)= (2u + 2,u),u ∈{2,4,6,8,10,14,16,18,20,22,26,28,32,34,46} 外,当n ≥2u + 1 时 F M O L S(1nu1) 存在。本文对以上所有可能的例外,证明 F M O L S(1nu1) 的存在性。 展开更多
关键词 正交拉丁方 截态 膨胀构造法 FMOLS
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标准化类框架住宅建造体系研究与应用
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作者 杨波 刘俊 闫茹 《城市建筑》 2026年第2期176-179,共4页
文章从住宅工业化设计的视角出发,对国内外装配式住宅建造体系的研究现状与发展趋势进行梳理。以镇江某住宅项目的设计施工全过程作为实际案例,在现有的高层住宅建筑体系基础上进行设计优化,提出适用于高层住宅建筑的标准化装配式类框... 文章从住宅工业化设计的视角出发,对国内外装配式住宅建造体系的研究现状与发展趋势进行梳理。以镇江某住宅项目的设计施工全过程作为实际案例,在现有的高层住宅建筑体系基础上进行设计优化,提出适用于高层住宅建筑的标准化装配式类框架住宅建造体系,整理并制定出配套的标准化设计方法与类框架结构布置体系。 展开更多
关键词 建筑工业化 装配式建筑 类框架结构 标准化设计 住宅建筑
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双尺寸镍钴层状双氢氧化物阻燃环氧树脂复合材料性能研究
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作者 耿艺玮 陈希磊 《青岛科技大学学报(自然科学版)》 2026年第1期43-50,共8页
采用KH560改性后的由传统水热法制备Ni Co-LDH和金属盐蚀刻的方式制备金属有机框架(MOF)衍生Ni Co-LDH分别作为协同填料和主填料同时加入环氧树脂(EP)基体中,进行二元填料对EP复合材料的阻燃性能和抑烟性能表现出双尺寸阻燃剂协同作用... 采用KH560改性后的由传统水热法制备Ni Co-LDH和金属盐蚀刻的方式制备金属有机框架(MOF)衍生Ni Co-LDH分别作为协同填料和主填料同时加入环氧树脂(EP)基体中,进行二元填料对EP复合材料的阻燃性能和抑烟性能表现出双尺寸阻燃剂协同作用的探究,并通过锥形量热测试(CCT)和极限氧指数(LOI)测试进行检验。CCT结果表明,当MOF衍生Ni Co-LDH@KH560与Ni Co-LDH@KH560的添加比例为1∶1时,总热释放量最低,且平均有效燃烧热最高,燃烧效率最高,燃烧更加完全,有毒有害气体的产生量减少。且催化成炭效果也最好,与纯EP的热释放速率峰值(PHRR)相比,其PHRR降低了28.11%。EP复合材料的LOI均高于纯EP。综上所述,二元填料表现出的双尺寸阻燃剂的协同作用,为提高EP的火安全性能提供了一种新的方式。 展开更多
关键词 层状双氢氧化物 金属有机框架材料 阻燃 环氧树脂 双尺寸
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一些新的型为3~m的3-互补(3,2;1)-frame(英文)
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作者 严洁 《苏州大学学报(自然科学版)》 CAS 2008年第4期1-4,共4页
Lamken对区组大小为3,型为3m的3-互补frame进行了研究,剩下22个值尚未解决.我们利用starter-adder方法确定了其中的10个值.
关键词 互补 frame 构作 存在性
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软土地区既有铁路框架涵扩孔及接长施工技术研究
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作者 李秋原 《科技创新与应用》 2026年第6期181-184,共4页
以上海南联络线大富浜框架涵扩孔及接长改造工程为背景,介绍软土地区箱涵扩孔及接长工程的施工步序。着重对施工过程如围堰施工、地基加固、线路加固、便梁架设、基坑支护、土方开挖和既有结构拆除等关键施工步骤进行阐述,针对施工中的... 以上海南联络线大富浜框架涵扩孔及接长改造工程为背景,介绍软土地区箱涵扩孔及接长工程的施工步序。着重对施工过程如围堰施工、地基加固、线路加固、便梁架设、基坑支护、土方开挖和既有结构拆除等关键施工步骤进行阐述,针对施工中的难点、高风险点进行分析,提出应对措施,有效保障线路加固、基坑支护、土方开挖等关键环节在施工全程的安全受控状态,可为类似工程提供借鉴。 展开更多
关键词 软土地区 铁路 框架涵 扩孔 接长 施工
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装配式高层框架-核心筒同步攀升及高大模板支架施工关键技术研究
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作者 朱勇 陈敏 《建筑机械》 2026年第2期276-281,共6页
文章以武汉理工大学交通协同创新基地项目为依托,针对钢框架-混凝土核心筒结构施工中的工期控制与高大模板支架安全难题,提出了同步攀升施工工艺与盘扣式支撑体系关键技术。通过优化临时支撑体系设计实现了核心筒与钢框架的协同施工,工... 文章以武汉理工大学交通协同创新基地项目为依托,针对钢框架-混凝土核心筒结构施工中的工期控制与高大模板支架安全难题,提出了同步攀升施工工艺与盘扣式支撑体系关键技术。通过优化临时支撑体系设计实现了核心筒与钢框架的协同施工,工期缩短20%以上。针对不同截面尺寸的超限框架梁,制定了分级支撑方案,采用承插型盘扣式钢管架体,通过模数化立杆布置、加强剪刀撑与封杆构造,解决了高支模体系稳定性问题。工程实践表明,该技术体系可有效避免传统工艺导致的墙体留筋、合模困难等缺陷,支架坍塌风险降低80%。 展开更多
关键词 高层建筑 钢框架-混凝土核心筒 同步攀升 高大模架 施工技术
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复杂地形条件下大跨连续桥梁施工关键技术研究
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作者 宋晓东 《工程建设与设计》 2026年第4期145-147,共3页
以浙江省景宁畲族自治县与文成县交界地带复杂地形条件下的三插溪特大桥等大跨连续桥梁工程为背景,针对高桥隧比、陡峭地形、峡谷高墩、生态敏感区等工程难点,系统研究了陡峭地形桩基施工、峡谷高墩建造等关键技术。通过微型钢管桩加固... 以浙江省景宁畲族自治县与文成县交界地带复杂地形条件下的三插溪特大桥等大跨连续桥梁工程为背景,针对高桥隧比、陡峭地形、峡谷高墩、生态敏感区等工程难点,系统研究了陡峭地形桩基施工、峡谷高墩建造等关键技术。通过微型钢管桩加固平台、旋挖-冲击钻组合工艺、滑翻结合模板系统等创新方法,解决了成孔难、高墩垂直度控制、混凝土温控及合龙精度问题。 展开更多
关键词 大跨连续刚构桥 复杂地形 施工技术 环保施工
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下穿铁路框架桥全断面快速顶进施工技术
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作者 秦海红 《工程建设与设计》 2026年第4期148-150,共3页
由于下穿铁路框架桥工程需在不中断铁路运营的前提下施工,全断面快速顶进施工技术成为施工关键部分。论文对该技术进行了研究,并介绍了施工技术原理、设备与材料及工艺特点,探讨了施工前准备工作,阐述了顶进施工过程中的方向、速度控制... 由于下穿铁路框架桥工程需在不中断铁路运营的前提下施工,全断面快速顶进施工技术成为施工关键部分。论文对该技术进行了研究,并介绍了施工技术原理、设备与材料及工艺特点,探讨了施工前准备工作,阐述了顶进施工过程中的方向、速度控制及顶进力监测与调整,以及施工质量与安全保障措施。 展开更多
关键词 下穿铁路框架桥 全断面顶进 施工技术
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皖南地区边坡分级施工及支护加固稳定性效果研究
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作者 汪永锋 向田一 《四川建材》 2026年第3期111-114,共4页
为了讨论框架预应力锚杆分级支护公路边坡的加固效果及安全性,以S22天天高速安庆至潜山段K8+270~K8+900左堑边坡为研究对象,采用ANSYS有限元软件建立公路边坡三维数值模型,利用FLAC3D软件对该模型进行边坡分级施工及支护稳定性效果模拟... 为了讨论框架预应力锚杆分级支护公路边坡的加固效果及安全性,以S22天天高速安庆至潜山段K8+270~K8+900左堑边坡为研究对象,采用ANSYS有限元软件建立公路边坡三维数值模型,利用FLAC3D软件对该模型进行边坡分级施工及支护稳定性效果模拟研究。因施工和支护顺序的影响,对比分析不同支护情况下剪应力增量、安全系数、位移、锚杆轴力的变化规律。数值模拟结果表明,边坡分级施工及支护后,剪应力增量呈减小趋势、边坡的沉降及水平位移有所减小,安全系数明显提高,边坡的稳定性得到提高;同时总结出锚杆轴力的变化规律,为相似的公路边坡支护施工提供相关借鉴。 展开更多
关键词 框架锚杆 分级施工支护 安全系数 公路边坡
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