Study on Shear Performance of Structure under Concentrated Load

A special issue of Buildings (ISSN 2075-5309). This special issue belongs to the section "Building Structures".

Deadline for manuscript submissions: 30 May 2025 | Viewed by 2774

Special Issue Editors


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Guest Editor
School of Civil Engineering, Southeast University, Nanjing 210096, China
Interests: building structures (steel, aluminum alloy); bearing capacity

E-Mail Website
Guest Editor
Department of Civil and Airport Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210095, China
Interests: spatial structure; steel structure; new material structure; analysis and calculation; structural experiment

Special Issue Information

Dear Colleagues,

In practical engineering, the application of concentrated loads is extremely widespread, and is mainly reflected in the vibration load (dynamic load) caused by large-scale mechanical equipment on the floor of multi-storey industrial plants and the hanging load (static load) of various equipment on floor or roof structures, such as large display screens hanging from the roof of gymnasiums or other long-span spatial structures. In addition, various accidental explosions and aerial bird strikes on civil aircraft are also classed as concentrated loads. These loads often have a great impact on the original structure, and can even be fatal. The scope of this Special Issue of Buildings encompasses research on the mechanical behaviors and failure mechanisms of the components or joints of new types of structures under concentrated loads.

Prof. Dr. Caiqi Zhao
Dr. Gan Tang
Guest Editors

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Keywords

  • structural mechanics
  • mechanics of materials
  • composite structure
  • failure mode
  • static load
  • dynamic load
  • shear Performance

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Published Papers (2 papers)

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Research

19 pages, 11303 KiB  
Article
Seismic Performance Analysis of RC Frame Structure Beam–Column Joints Based on Strong Column and Weak Beam Method
by Yikang Zhang
Buildings 2024, 14(10), 3267; https://doi.org/10.3390/buildings14103267 - 15 Oct 2024
Cited by 1 | Viewed by 1217
Abstract
Based on the design concept of a strong column and weak beam, a new type of reinforced concrete frame structure beam–column joint is proposed. Considering different column end amplification factors (beam–column bending moment ratio), the finite element method (FEA) is used to analyze [...] Read more.
Based on the design concept of a strong column and weak beam, a new type of reinforced concrete frame structure beam–column joint is proposed. Considering different column end amplification factors (beam–column bending moment ratio), the finite element method (FEA) is used to analyze the parameters that affect the seismic performance of RC frame structure beam–column joints. The reliability verification error is within 4.8% to 11.7%, meeting the requirements of engineering accuracy. Then, through parameter analysis, the effects of different concrete strengths, stirrup diameters, and axial pressures on the seismic performance of the joint are studied. The study results show that enhancing concrete strength has a significant effect on the seismic performance of the structure, especially when the amplification factor is 2.0. Compared with the C20 specimen, the bearing capacity of the C40 specimen increased by 26.88%. However, the increase in stirrup diameter did not significantly improve the performance of the specimen. In addition, a high axial pressure ratio may affect the bearing capacity of the structure. This study provides a new type of beam–column joint that conforms to the design concept of a strong column and weak beam and provides a theoretical basis for its application in engineering. Full article
(This article belongs to the Special Issue Study on Shear Performance of Structure under Concentrated Load)
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19 pages, 16039 KiB  
Article
Experimental and Theoretical Study on the Interface Mechanical Performance of Aluminum–Timber Composite Connections
by Tengteng Zheng, Caiqi Zhao and Yikang Zhang
Buildings 2024, 14(8), 2486; https://doi.org/10.3390/buildings14082486 - 12 Aug 2024
Viewed by 1120
Abstract
The interface mechanical performance between aluminum alloy and timber is the key to ensure that the two work together. In this study, 11 group connection performance tests were carried out to investigate the influence of connection type (shear bolt connection, epoxy resin adhesive [...] Read more.
The interface mechanical performance between aluminum alloy and timber is the key to ensure that the two work together. In this study, 11 group connection performance tests were carried out to investigate the influence of connection type (shear bolt connection, epoxy resin adhesive connection, and mixed connection), number and spacing of bolts, thickness, and length (the area of incidence of the adhesive in the structure) of epoxy resin adhesive on the interface shear-resistant capacity of aluminum–timber composite connections. The shear performance of the three kinds of connections were studied via finite element analysis, and the calculation formula for interface shear-resistant capacity of the aluminum–timber composite connection was proposed based on the bond-slip mechanism of adhesive. The analysis results indicate that the mixed connection can avoid the brittle failure characteristics of the shear bolt connection and the epoxy resin adhesive connection, and the shear-resistant capacity is increased by 45.6% and 14.7%, respectively. The results of the calculation formula for interface shear-resistant capacity are in good agreement with the experimental results, indicating that it is suitable for the aluminum–timber composite connection. Full article
(This article belongs to the Special Issue Study on Shear Performance of Structure under Concentrated Load)
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