scholarly journals Influence of a New Form of Bolted Connection on the Mechanical Behaviors of a PC Shear Wall

2018 ◽  
Vol 8 (8) ◽  
pp. 1381 ◽  
Author(s):  
Shaofei Jiang ◽  
Shenghang Lian ◽  
Jian Zhao ◽  
Xiang Li ◽  
Shenglan Ma
Keyword(s):  
Reinforced Concrete ◽  
Shear Wall ◽  
Connection Form ◽  
Mechanical Behaviors ◽  
Yield Strain ◽  
Bolted Connection ◽  
Axial Compression Ratio ◽  
New Form ◽  
Rc Shear Wall ◽  
The Impact

A variety of forms of connection in precast reinforced concrete (PC) have been proposed, but the impact of the connection forms on the shear wall remains to be studied. In this paper, through quasi-static experiments and numerical simulations, the influences of a new form of bolted connection on the mechanical behaviors of the PC shear wall are investigated. The results show that the strain of the connector is less than the yield strain and the failure does not occur in the connector; the mechanical behaviors of this connection form of the PC shear wall are equivalent to those of the cast-in-place reinforced concrete (RC) shear wall. Meanwhile, reasonable suggestions are put forward for the design of the connector from the pretightening force, bolt number, and axial compression ratio. This implies that this form of bolted connection has little influence on the mechanical behaviors of the PC shear wall and design suggestions can be used in practical projects.

scholarly journals Fragility Functions for RC Shear Wall Buildings in Australia

2019 ◽  
Vol 35 (1) ◽  
pp. 333-360 ◽  
Author(s):  
Ryan Hoult ◽  
Helen Goldsworthy ◽  
Elisa Lumantarna
Keyword(s):  
Reinforced Concrete ◽  
Site Response ◽  
Shear Wall ◽  
Fragility Functions ◽  
Building Stock ◽  
Seismic Region ◽  
High Rise ◽  
Capacity Spectrum ◽  
Damage Data ◽  
Rc Shear Wall

This research investigates the development of analytical fragility functions for reinforced concrete shear wall buildings in Australia. A building stock for the city of Melbourne is used in conducting an assessment of these types of structures. The assessment uses the best information available for selecting the building parameters applicable to the low-to-moderate seismic region, site soil class, expected earthquake ground motions, and site response. The capacity spectrum method is used to derive vulnerability functions for low-, mid-, and high-rise reinforced concrete shear wall buildings. Although there is a paucity of earthquake damage data available in Australia, some comparisons are made using the results from the fragility functions derived here to the damage data from the Newcastle earthquake in 1989.

Experimental Study on Seismic Behavior of High-Rise RC Shear Wall with Diagonal Web Reinforcement

2012 ◽  
Vol 446-449 ◽  
pp. 2305-2308
Author(s):  
Guang Qiang Zhou ◽  
Qing Yang Liu ◽  
De Yuan Zhou
Keyword(s):  
Reinforced Concrete ◽  
Axial Compression ◽  
Seismic Behavior ◽  
Shear Wall ◽  
Concrete Wall ◽  
High Rise ◽  
Web Reinforcement ◽  
Reinforced Concrete Wall ◽  
Rc Shear Wall ◽  
Reversed Cyclic

Based on the experiment of four models of reduced scale high-rise reinforced concrete wall under low-reversed cyclic loading, seismic behavior of reinforced concrete (RC) shear wall with diagonal web reinforcement under different ratio of axial compression is studied, in comparison to ordinary shear wall. The experiment result shows that diagonal bars affect the distribution of cracks and help to resist shear slip at the bottom of the wall. Seismic behavior of high-rise shear wall, which horizontal bars are replaced with the same amount diagonal bars in part can be obviously improved when the ratio of axial compression is high, but when the ratio of axial compression is low, the effect is not obvious.

scholarly journals Seismic and Power Generation Performance of U-Shaped Steel Connected PV-Shear Wall under Lateral Cyclic Loading

2014 ◽  
Vol 2014 ◽  
pp. 1-15 ◽  
Author(s):  
Hongmei Zhang ◽  
Jinzhi Dong ◽  
Yuanfeng Duan ◽  
Xilin Lu ◽  
Jinqing Peng
Keyword(s):  
Power Generation ◽  
Reinforced Concrete ◽  
Cyclic Loading ◽  
Seismic Behavior ◽  
Residential Buildings ◽  
Shear Wall ◽  
Deformation Capacity ◽  
High Rise ◽  
Pv Module ◽  
New Form

BIPV is now widely used in office and residential buildings, but its seismic performance still remained vague especially when the photovoltaic (PV) modules are installed on high-rise building facades. A new form of reinforced concrete shear wall integrated with photovoltaic module is proposed in this paper, aiming to apply PV module to the facades of high-rise buildings. In this new form, the PV module is integrated with the reinforced concrete wall by U-shaped steel connectors through embedded steel plates. The lateral cyclic loading test is executed to investigate the seismic behavior and the electric and thermal performance with different drift angles. The seismic behavior, including failure pattern, lateral force-top displacement relationship, and deformation capacity, was investigated. The power generation and temperature variation on the back of the PV module and both sides of the shear wall were also tested. Two main results are demonstrated through the experiment: (1) the U-shaped steel connectors provide enough deformation capacity for the compatibility of the PV module to the shear wall during the whole cyclic test; (2) the electricity generation capacity is effective and stable during this seismic simulation test.

Inelastic analysis of a reinforced concrete shear wall building according to the National Building Code of Canada 2005

2006 ◽  
Vol 33 (7) ◽  
pp. 854-871 ◽  
Author(s):  
M Panneton ◽  
P Léger ◽  
R Tremblay
Keyword(s):  
Reinforced Concrete ◽  
Three Dimensional ◽  
Time History ◽  
Shear Walls ◽  
Shear Wall ◽  
Fundamental Period ◽  
Building Code ◽  
Base Shear ◽  
Inelastic Analysis ◽  
The Impact

An eight-storey reinforced concrete shear wall building located in Montréal and designed according to the 1995 National Building Code of Canada (NBCC) and the Canadian Standards Association standard CSA-A23.3-94 is studied to evaluate the impact of new requirements for inclusion in new editions of the NBCC and CSA-A23.3. Static and modal analyses were conducted according to the 2005 NBCC (draft 2003) and CSA-A23.3-04 (draft 4) procedures, and three-dimensional dynamic inelastic time history analysis was performed using three earthquake records. The building is braced by four flat shear walls and three cores. Various estimates of the fundamental period of vibration based on empirical expressions presented in the literature or structural models with different stiffness assumptions were examined. The analysis also permitted the study of the displacement and force demand on the lateral load resisting system. It was found that the base shear from the 2005 NBCC is 29% higher than the 1995 NBCC value when code empirical formulae are used for the fundamental period of vibration.Key words: building, shear wall, inelastic seismic response, NBCC, CSA-A23.3 design of concrete structures.

Damage Sensitivity Analysis for Main Design Parameters of Reinforced Concrete Shear Wall

2011 ◽  
Vol 374-377 ◽  
pp. 2574-2577
Author(s):  
Shan Suo Zheng ◽  
Qing Lin Tao ◽  
Yi Hu ◽  
Zhi Qiang Li
Keyword(s):  
Reinforced Concrete ◽  
Energy Dissipation ◽  
Seismic Wave ◽  
Wave Energy ◽  
Shear Wall ◽  
Hybrid Structure ◽  
Design Parameters ◽  
Main Design ◽  
Energy Dissipation Capacity ◽  
Rc Shear Wall

As an indispensable force component to the hybrid structure, the seismic wave energy inputted into integral structure is dissipated by damping force working and plastic hysteresis of reinforced concrete shear wall which is taken as the first seismic fortification line of structure. Considering of the condition that the RC shear wall is mainly used to dissipate the seismic wave energy, this paper takes the ultimate energy dissipation capacity of reinforced concrete shear wall subjected to cyclic loading as the damage characterization. According to the related theoretical analysis and experimental research, the method for calculating ultimate energy dissipation capacity of RC shear wall is proposed and the damage sensitivity of various design parameters which contain the sectional thickness, the strength of concrete and reinforcement ratio are analyzed, then the influence laws of main design parameters impacted on damage evolution of RC shear wall are revealed in this paper. The research shows that sectional thickness is the most sensitive factor in the damage of reinforced concrete shear wall and the concrete strength degree takes the second place, and then the reinforcement ratio is the most insensitive design parameter. The research achievements will provide theoretical support for establishing the storey damage model of SRC frame-RC core wall hybrid structure under seismic excitation.

scholarly journals Use of Composite Materials in RC Shear Wall

2020 ◽  
Vol 8 (5) ◽  
pp. 3835-3839
Keyword(s):  
Reinforced Concrete ◽  
Composite Materials ◽  
Boundary Element ◽  
Tall Buildings ◽  
Shear Wall ◽  
Steel Fibers ◽  
Ductile Material ◽  
Steel Fibres ◽  
Displacement Capacity ◽  
Rc Shear Wall

Shear wall is the structural component provided in midrise and tall buildings to resist earthquake and wind forces. These walls are continuous from foundation to top of buildings. Many times the wall around lift and staircase shaft of a building is designed as a shear wall. Generally these are of reinforced concrete but may be of masonry, wood, steel etc. As these walls have to resist heavy lateral forces these are of heavy sections and have a dense reinforcement at lower part which results substantial amount of closely spaced transverse reinforcement causing reinforcement congestion in boundary element creating problem of construction and placing. Heavy reinforcement and large thickness is required at lower stage and in boundary element of these walls. Displacement capacity of RC structures is generally depends on the deformation capacity of the concrete. If large displacement capacity is to be attained, steel is provided in concrete to enhance concrete behavior, particularly compressive strain capacity. To achieve these goals and maintaining size of cross section in control, heavy reinforcement ratio is required to maintain which creates problem of reinforcement congestion. To overcome this problem of reinforcement congestion a small amount of ductile material like steel fibres may be added to concrete. Many researchers had tried to investigate the behavior of RC shear wall with different composites to improve its performance but very few had tried with concrete with steel fibres. Use of composite materials steel fibers in concrete found beneficial in many structural elements is tried in this research for shear wall. In this paper finite element analysis of shear wall model has been carried out to study and compare the behavior of normal concrete shear wall and steel fiber reinforced concrete shear wall with and without opening using ETABS software to know improvement in behaviour when subjected to lateral load by adding steel fibers in concrete.

Analysis of Multistoried RCC Building with Shear Wall and Outrigger using ETABS Software

2021 ◽  
Vol 9 (VI) ◽  
pp. 2808-2811
Author(s):  
Prof. Subodh Dhoke
Keyword(s):  
Reinforced Concrete ◽  
Load Capacity ◽  
Tall Buildings ◽  
Well Being ◽  
Shear Wall ◽  
Engineering Practice ◽  
Structural Element ◽  
Concrete Walls ◽  
Reinforced Concrete Walls ◽  
The Impact

During earthquakes, a large number of buildings are destroyed due to the cause of lateral forces and increased load capacity in the structural element, and this is caused by winds, earthquakes and uneven settlement of cargo. The least damage and well-being a healthy level of construction is a necessary requirement for tall buildings. To reduce the impact of damage on all high structures, it may consist of basic insulation techniques and sliding walls, and so on. Buildings are used to increase design performance and limit damage to landslide walls. On tall buildings to prevent earthquake loads, reinforced concrete walls are used as supporting elements. Reinforced concrete structures are mainly implemented in engineering practice in different situations and different applications. Many researchers turn to the effectiveness of sliding walls with boundary conditions based on different types of reinforcement alignment. This document consists of modeling different models for the shear wall housing and the hood system.

scholarly journals The impact of shear wall location on the seismic response of RC frame buildings resting on sloping ground

2019 ◽  
Vol 2 (1) ◽  
pp. 61-68
Author(s):  
Upama Acharya ◽  
Jagat Kumar Shrestha
Keyword(s):  
Response Spectrum ◽  
Pushover Analysis ◽  
Structural Response ◽  
Earth Pressure ◽  
Shear Walls ◽  
Shear Wall ◽  
Sloping Ground ◽  
Negative Effect ◽  
Rc Shear Wall ◽  
The Impact

It is observed during the past earthquakes, buildings in hilly regions have experienced high degree of damage leading to collapse though they have been designed for safety of the occupants against natural hazards. Hence, while adopting practice of multistory buildings in these hilly and seismically active areas, utmost care should be taken for making these buildings earthquake resistant. For the buildings on sloping ground, the height of columns below plinth level is not same which affects the performance of building during earthquake. Hence to improve the seismic performance of building shear walls play very important role.It is very necessary to determine the most effective location of shear walls. Shear wall arrangement must be accurate, because if not, it will cause negative effect instead. This paper is aimed at predicting the effect of positioning RC shear wall of different shape on the structural response of RC building resting on sloping ground. Eight models have been prepared considering earth pressure and without considering earth pressure. The displacement of building is to be determined by nonlinear static pushover analysis. For the purpose of pushover analysis and response spectrum analysis finite element-based software SAP 2000 has been utilized.

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