scholarly journals SEISMIC PERFORMANCE IMPROVEMENT FOR OLD R/C MEDIUM-RISE RESIDENTIAL BUILDINGS BY PUTTING SLITS

2011 ◽  
Vol 76 (667) ◽  
pp. 1685-1694
Author(s):  
Kazuaki HOKI ◽  
Manabu YOSHIMURA
Author(s):  
Angela Liu ◽  
David Carradine

The goal of this study is to develop a racking model of plasterboard-sheathed timber walls as part of the efforts towards performance-based seismic engineering of low-rise light timber-framed (LTF) residential buildings in New Zealand. Residential buildings in New Zealand are primarily stand-alone low-rise LTF buildings, and their bracing elements are commonly plasterboard-sheathed LTF walls. It is an essential part of performance-based seismic designs of LTF buildings to be able to simulate the racking performance of plasterboard walls. In this study, racking test results of 12 plasterboard walls were collected and studied to gain insight into the seismic performance of plasterboard-sheathed LTF walls. The racking performance of these walls was examined in terms of stiffness/strength degradation, displacement capacity, superposition applicability and failure mechanisms. Subsequently, a mathematical analysis model for simulating racking performance of LTF plasterboard walls is developed and presented. The developed racking model is a closed-form wall model and could be easily used for conducting three-dimensional non-linear push-over studies of seismic performance of LTF buildings.


2021 ◽  
pp. 136943322110463
Author(s):  
Tiegang Zhou ◽  
Xin Wang ◽  
Ben Ma ◽  
Zaiyu Zhang ◽  
Wei Tan

At present, adobe houses with traditional characteristics are still widely used in rural areas in western China, but their seismic performance is relatively poor, and they often suffer serious damage under earthquake. To improve the seismic performance of traditional adobe buildings while retaining the characteristics of residential buildings, the mechanical properties of compressed earth blocks (CEB) were tested in this study, and the microstructure characteristics of CEB after failure were analyzed by electron microscope. On this basis, six adobe wall specimens were designed and tested by quasi-static loading to investigate the influence of core columns and different types of bricks on its seismic performance. The results show that the core column can improve the bearing capacity and shear capacity of hollow CEB, and it can also significantly increase the bearing capacity, energy dissipation capacity, and ductility of CEB wall. In general, the adobe wall with core columns shows excellent seismic performance, which can provide a new choice for improving the seismic performance of the adobe house.


Author(s):  
Jeongjin Choi ◽  
◽  
Taehun Lee ◽  
Byeongjin Park ◽  
Kwanggun Rho ◽  
...  

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