检索结果-内蒙古大学图书馆

International Conference on Sustainable Traffic and Transportation engineering, CSTTE 2023

作者： Liu, Haiyong Li, Ming Dai, Yuelong Ou, Mintao Guangzhou CCCC Construction Engineering Co. Ltd. Guangdong Guangzhou511466 China CCCC Second Harbor Engineering Co. Ltd. Hubei Wuhan430040 China CCCC Second Harbor Engineering Sixth Engineering Branch Co. Hubei Wuhan430040 China School of Civil and Hydraulic Engineering Huazhong University of Science and Technology Hubei Wuhan430074 China

ISBN: (纸本)9789819758135

Temporary steel truss bridges are increasingly used in engineering projects due to the large-scale construction and development of sea-crossing bridges. However, the construction of these bridges is greatly affected by environmental factors and can face significant challenges when dealing with complex conditions such as fast currents, water depth, and large fluctuations in water level. Therefore, advanced construction techniques are necessary to overcome these challenges. This paper discusses the design, analysis, and construction of a steel truss bridge over water under high water level and rapid flow conditions, using the Shupan Yan Bridge construction project as an example. The paper proposes novel techniques for drilled piles, lateral support, and bridge deck structure. Additionally, a detailed finite element model is established. The results of the finite element analysis demonstrate the suitability and practicality of the novel technology design proposed in this study for constructing steel truss bridges in complex water environments. The technology improves safety during construction. The research findings can provide guidance for similar projects. © The Author(s) 2024.

关键词： Finite element method

来源：评论

学校读者我要写书评

暂无评论

Study on Residents' Intentions to Purchase Prefabricated Housing in China

Study on Residents' Intentions to Purchase Prefabricated Hou...

引用

2024 International Conference on construction and Real Estate Management: ESG Development in the construction Industry, ICCREM 2024

作者： Zhou, Fanxi Zhou, Zhenzong Man, Qingpeng Wang, Yaowu School of Economics and Trade Henan Univ. of Technology Henan China Dept. of Construction Management Harbin Institute of Technology Harbin China Dept. of Construction Management Key Lab of Structures Dynamic Behavior and Control of the Ministry of Education Key Lab of Smart Prevention and Mitigation of Civil Engineering Disasters of the Ministry of Industry and Information Technology Harbin Institute of Technology Harbin China

ISBN: (数字)9780784485910

ISBN: (纸本)9780784485910

Currently, with an increasingly serious environmental population and energy crisis, countries are actively exploring measures to reduce carbon emissions. Environmental protection and sustainable development have become hot points for research. As a high-consumption industry, the construction industry urgently needs to take measures to reduce its negative impacts on the environment. Prefabricated housing has the characteristic of a short construction period and is environmentally friendly. Therefore, it plays a vital role in China's sustainable development. At the same time, the residential industry is a key area for the development of prefabricated buildings. In order to better reveal the consumers' purchase intentions and promote the deeper development of prefabricated housing to bring greater social benefits, this study combines the theory of planned behavior (TPB) and the norm activation model (NAM) to explain the influencing factors of consumers' purchase of prefabricated housing, hoping to scientifically guide residents, and at the same time provide theoretical reference for policy formulation. © ASCE.

关键词： Carbon sequestration

来源：评论

学校读者我要写书评

暂无评论

Cost and Design Optimization of a 2-Story RC Building

Cost and Design Optimization of a 2-Story RC Building

引用

International Conference on Advanced engineering Optimization Through Intelligent Techniques, AEOTIT 2022

作者： Aslay, Semi Emrah Dede, Tayfun Rao, Ravipudi Venkata Department of Construction Erzincan Binali Yildirim University Erzincan Turkey Department of Civil Engineering Karadeniz Technical University Trabzon Turkey Department of Mechanical Engineering Sardar Vallabhbhai National Institute of Technology Gujarat Surat India

ISBN: (纸本)9789811992841

Reducing construction costs is the most important issue for contractor companies. Optimization is one of the widely used scientific methods to reduce construction costs. However, the method and the algorithm followed differ according to the construction materials. At the same time, 3D designs are needed to analyze buildings more accurately. Optimizing the cost, especially in reinforced concrete structures, is directly proportional to the behavior of the model studied. For this reason, the created model should be made in 3D. 3D cost optimization of reinforced concrete structures, on the other hand, is quite complex and difficult due to the properties of the building elements. Therefore, practical ways are sought to solve this problem. In this study, OAPI-ETABS-MATLAB software cycles are used in the optimization of a 2-story reinforced concrete structure in order to solve the problem practically. Jaya algorithm is used as the optimization algorithm. Software loops provide a short solution by directing the cost optimization of a 2-story 3D building. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： MATLAB

来源：评论

学校读者我要写书评

暂无评论

EXPERIMENTAL STUDY OF ACTIVE EARTH PRESSURES ON RETAINING WALLS ADJACENT TO INCLINED ROCK FACES

Journal of GeoEngineering

引用

Journal of Geoengineering 2022年第4期17卷 207-220页

作者： Fang, Yung-Show Fan, Chia-Cheng Huang, Sheng-Feng Liu, Cheng Department of Civil Engineering National Yang Ming Chiao Tung University Hsinchu City30093 Taiwan Department of Construction Engineering National Kaohsiung University of Science and Technology Kaohsiung City82445 Taiwan Mass Transit Engineering Department Sinotech Engineering Consultants Taipei10570 Taiwan Department of Rapid Transit Engineering CECI Engineering Consultants Inc. Taipei11491 Taiwan

This paper presents the experimental data of lateral earth pressure acting on a vertical rigid wall, which moved away from a constrained backfill of dry sand. An instrumented retaining-wall facility was used to investigate the effects of an adjacent inclined rock face on the development of active earth pressure. Note only loose Ottawa sand was used as backfill material and only the translational mode of wall movement was investigated. Based on the experimental data, it has been found that for the wall with a nearby inclined rock face, the active earth pressure measured at the upper part of the wall was in good agreement with Coulomb’s prediction. However, the active pressure measured at the lower part of the wall was lower than Coulomb’s prediction. The magnitude of the active soil force decreased with increasing rock face inclination angle, and the point of application of the active resultant ascended with increasing rock face inclination angle. If the inclined rock face was vertical and located very close to the retaining wall, only a narrow backfill was sandwiched between the rock face and the retaining wall. It was impossible for the active soil wedge to develop behind the wall. Consequently, the active pressure distribution was much less than Coulomb’s prediction. Calculations based on Coulomb’s theory could significantly overestimate the active soil force and the overturning moment © 2022,Journal of Geoengineering. All Rights Reserved.

关键词： Retaining walls

来源：评论

学校读者我要写书评

暂无评论

An analysis of legislation and policies governing the working conditions of sanitation workers in Zimbabwe

引用

Safety in Extreme Environments 2024年第1期6卷 71-77页

作者： Chinyama, Annatoria Macherera, Margaret Kativhu, Tendai Department of Construction and Civil Engineering University of Zimbabwe Mount Pleasant Harare Zimbabwe Department of Crop and Soil Sciences Lupane State University Lupane Zimbabwe Department of Environmental Science National University of Science and Technology Ascot Bulawayo Zimbabwe

Sanitation workers are at high risk of occupational and health hazards associated with exposure to faecal sludge as they clean public toilets, empty septic tanks, repair sewerage pipelines and operate wastewater treatment facilities. They can only be protected from these hazards through effective safety and health measures backed by sound institutional and legal frameworks. This study sought to analyse the existing institutional and legal frameworks, regulations and policies governing working conditions of sanitation workers in Zimbabwe and assess the adequacy of the frameworks in addressing the plight of sanitation workers in their day to day work. An inventory of the laws and policies in Zimbabwe was done through a desktop study. The identified laws and policies were analysed in terms of occupational health and safety provisions for sanitation workers as well as the enforcement systems. The laws and policies in Zimbabwe were benchmarked with world best practice and principles from world bodies governing occupational health and safety. It was found that the current legislation and policies on occupational health and safety are general to all employees. It was also found that there are statutory instruments specific to hazards associated with other sectors such as mining, agriculture and construction but nothing specific to sanitation workers. Therefore the current legislation and policies are too weak to protect the sanitation workers. It was recommended that the legislation and policies be reformed to take into account the plight of sanitation workers in order to provide better protection from occupational hazards. © The Author(s), under exclusive licence to Springer Nature Switzerland AG 2023.

关键词： Legal reforms Legislation framework OHS Sanitation policies Sanitation workers

来源：评论

学校读者我要写书评

暂无评论

Vibration Serviceability of Large-Span Steel–Concrete Composite Beam with Precast Hollow Core Slabs Under Walking Impact

引用

engineering 2022年第12期19卷 93-104页

作者： Jiepeng Liu Shu Huang Jiang Li Y.Frank Chen School of Civil Engineering&Key Laboratory of New Technology for Construction of Cities in Mountain Area Ministry of EducationChongqing UniversityChongqing 400045China Central-South Architectural Design Institute Co. Ltd.Wuhan 430071China Department of Civil Engineering The Pennsylvania State UniversityPA 17057USA

A large-span steel–concrete composite beam with precast hollow core slabs(CBHCSs)is a relatively new floor structure that can be applied to various long-span ***,human-induced vibrations may present serviceability issues in such *** alleviate vibrations,both the walking forces excited by humans and the associated floor responses must be *** this study,150 load–time histories of walking,excited by 25 test participants,are obtained using a force measuring *** dynamic loading factors and phase angles in the Fourier series functions for one-step walking are ***,walking tests are performed on seven CBHCS specimens to capture the essential dynamic properties of mode shapes,natural frequencies,damping ratios,and acceleration time *** CBHCS floor system generally exhibits a high frequency(>10 Hz)and low damping(damping ratio<2%).Sensitivity studies using the finite element method are conducted to investigate the vibration performance of the CBHCS floor system,where the floor thickness,steel beam type,contact time,and human weight are ***,analytical expressions derived for the fundamental frequency and peak acceleration agree well with the experimental results and are hence proposed for practical use.

关键词： Composite beam Hollow core slab Walking force Floor vibration Mode shape

来源：评论

学校读者我要写书评

暂无评论

Cyclic Shear Tests on Key Connection Joints of Modularized constructions

引用

Journal of Harbin Institute of technology(New Series) 2022年第3期29卷 13-20页

作者： Deshen Chen Xiaofei Jin Huajie Wang Hongliang Qian Deci Chang Feng Fan Department of Civil Engineering Harbin Institute of Technology at WeihaiWeihai 264209ShandongChina Tianyuan Construction Group Limited Company Linyi 276002ShandongChina China Construction First Group Corporation Limited Beijing 100161China School of Civil Engineering Harbin Institute of TechnologyHarbin 150096China

Modularized construction is a new type of prefabricated building system with green environmental protection and excellent performance. There are few studies on the seismic performance of its key connection joint. This paper presents a new type of assembled connection joint for the high-rise modularized construction. Cyclic shear tests of full-scale joints were carried out, and the key indexes of their seismic performances including the hysteretic performance, ductility, and energy dissipation capacity were analyzed and obtained. The results show that the hysteresis loops of longitudinal and lateral cyclic shear tests were both plump in shapes. The ductility coefficients were 4.54 and 4.98, and the energy dissipation coefficients were 1.83 and 1.43, respectively. The test joint had good ductility and energy dissipation capacity. The positions of yield failure of specimens were mainly concentrated in the connection areas between the column and short beam or end-plate. The research can provide the technical reference for the seismic design and engineering application of related modularized constructions.

关键词： modularized construction assembled connection joint cyclic shear test seismic performance

来源：评论

学校读者我要写书评

暂无评论

Experimental Study on L-shaped Concrete-filled Steel Tubular Columns under Axial Compression and Eccentric Compression

引用

Journal of engineering Science and technology Review 2024年第2期17卷 175-181页

作者： Hu, Zhangqi He, Ran Liu, Jin Wang, Meng Zhang, Junyuan School of Civil Engineering Hunan City University Yiyang413000 China Hunan Engineering Research Center of Development and Application of Ceramsite Concrete Technology Hunan City University Yiyang413000 China Key Laboratory of Green Building and Intelligent Construction in Higher Educational Institutions of Hunan Province Yiyang413000 China Hunan Zhongda Designing Institute Co. Ltd. Changsha411201 China

Special-shaped concrete-filled steel tubular columns are widely utilized in high-rise buildings. In order to further simplify the construction steps and increase the application scope, a novel L-shaped concrete-filled steel tubular column (LCFSTC) was proposed. Nine specimens, scaled at 1:1, were designed and grouped with specimen lengths of 0.5, 1.0, and 2.0 m. Compressive tests were performed on the nine specimens under various experimental parameters, including specimen length, concrete strength, and loading conditions (axial or eccentric loading). The tests aimed to verify the reliability of the LCFSTC and explore its mechanical properties by analysing failure modes, load-vertical deflection curves, load-rotation angle curves, and load-strain curves. Results demonstrate that no specimen experienced weld seam failure, indicating good structural integrity for the LCFSTCs. For the axial-loading specimens, the bearing capacity and ductility increase with the specimen length. As the specimen length increases from 0.5 m to 1.0 and 2.0 m, the ductility coefficient (mean value) decreases by 23.0% and 47.2%, respectively. Increasing the concrete strength can improve the bearing capacity;the average bearing capacity of the specimens with a concrete strength of C40 increases by 17.1% compared with that of the C30 specimens. Eccentric loading increases the lateral deformation and affects the strain distribution and bearing capacity. This study can provide a good reference for the application and design of special-shaped concrete-filled steel tubular columns. © (2024) School of Science, DUTH. All rights reserved.

关键词： Bearing capacity

来源：评论

学校读者我要写书评

暂无评论

Application of BIM Collaborative Design technology in Intelligent Buildings for Prefabricated Steel Structures

引用

Procedia Computer Science 2024年 247卷 310-319页

作者： Heng Wang Wei Zhu Yansheng Du Wenling Zhang Hao Zhou Rui Wang Wenhao Li Pengfei Zhang Xiaokang Huang Zhiliang Cao Bingkai Bao China Construction Science and Industry Corporation LTD. Shenzhen 518000 China School of Civil Engineering Tianjin University Tianjin 300072 China Department of Civil Engineering School of Civil Engineering Tsinghua University Beijing 100084 China College of Civil Engineering Taiyuan University of Technology Taiyuan 030024 China China Construction Science and Industry Corporation (Tianjin) LTD. Tianjin 300000 China

In recent years, the development of prefabricated buildings has been significantly promoted by China's policy initiatives focusing on innovation, green development, and industrialization in the construction sector. This paper explores the application of Building Information Modeling (BIM) collaborative design technology in the construction of intelligent buildings with prefabricated steel structures. Using the Zhangjiawo Sports Park Project as a case study, we detail the integration of digital design, industrial production, and intelligent construction methodologies. The project leverages BIM for precise modeling (LOD400), optimizing construction through collision analysis, and enhancing natural lighting and ventilation via simulation tools. The prefabrication process employs advanced steel structure manufacturing techniques and intelligent logistics, while on-site construction utilizes automated systems, such as ALC wall panel installation robots. These innovations not only improve construction efficiency and safety but also align with national low-carbon and sustainable development goals. The findings provide valuable insights into the benefits and implementation strategies of BIM and intelligent construction technologies in prefabricated building projects.

关键词： Prefabricated Building Intelligent construction BIM technology Digital Design Industrial Production

来源：评论

学校读者我要写书评

暂无评论

A Fluid-Structure Interaction Simulation of Coal and Gas Outbursts Based on the Interaction between the Gas Pressure and Deformation of a Coal-Rock Mass

引用

Computer Modeling in engineering & Sciences 2022年第3期130卷 1649-1668页

作者： Lin Fang Mengjun Wu Bin Wu Honglin Li Chenhao He Fan Sun Merchants Chongqing Communications Research&Design Institute Co. Ltd.Chongqing400067China National Engineering Laboratory for Highway Tunnel Construction Technology Chongqing400067China Sichuan Ya Kang Expressway Co. Ltd.Ya’an625000China China Railway Construction Bridge Engineering Bureau Group 3rd Engineering Co. Shenyang110043China School of Civil Engineering Chongqing UniversityChongqing400045China

Based on the theories of the gas seepage in coal seams and the deformation of the coal-rock medium,the gas seepage field in coal-rock mass is coupled with the deformation field of the coal-rock mass to establish a fluidstructure interaction model for the interaction between coal gas and coal-rock *** outburst process in coal-rock masses under the joint action of gas pressure and crustal stress is simulated using the material point *** simulation results show the changes in gas pressure,velocity distribution,maximum principal stress distribution,and damage distribution during the process of the coal and gas outburst,as well as themovement and accumulation of coal-rock masses after the occurrence of the *** was found that the gas pressure gradient was greatest at theworking face after the occurrence of the outburst,the gas pressures and pressure gradients at each location within the coal seamgradually decreased with time,and the damage distribution was essentially the same as the minimum principal stress *** simulation further revealed that the outburst first occurred in themiddle of the tunnel excavation face and that the speed at which particles of coal mass were ejected was highest at the center and decreased toward the upper and lower *** study provides a scientific basis for enhancing our understanding of the mechanism behind coal and gas outbursts,as well as their prevention and control.

关键词： Coal and gas outburst fluid-structure interaction model material point method numerical simulation

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：