The Quasi-Frame-Shear-Wall Method for Reinforcement of Concrete-Masonry Mixed Structures

2011 ◽  
Vol 368-373 ◽  
pp. 2060-2064
Author(s):  
Ji Tong Jiang ◽  
Wei Liu ◽  
Hong Qiu Guo ◽  
Song Yang ◽  
De Run Du
Keyword(s):  
Seismic Analysis ◽  
Shear Wall ◽  
Wall Structure ◽  
Original Structure ◽  
Transmission Route ◽  
Force Transmission ◽  
Mixed Structure ◽  
Concrete Masonry ◽  
Reinforcement Measures ◽  
Wall Method

Based on seismic analysis of concrete-masonry mixed structure, a new strengthening method will be introduced. In order to find the effective and reasonable reinforcement measures to adjust to the characteristics of the mixed structure, the method of equivalent stiffness should apply to the structure, it can change the original unreasonable force transmission route, and then transform and reinforce the original structure into a quasi-frame-shear wall structure whose force transmission route is similar to frame-shear wall structure. This could be a reference to similar projects.

The Seismic Analysis of Frame-Supported Shear Wall Structures with High Transfer Floor

2013 ◽  
Vol 663 ◽  
pp. 72-75
Author(s):  
Xin Chang ◽  
Fu Ma
Keyword(s):  
Seismic Performance ◽  
Seismic Analysis ◽  
Layer Structure ◽  
Shear Wall ◽  
Structural Effect ◽  
High Conversion ◽  
Wall Structure ◽  
Wall Structures ◽  
Rational Distribution

This thesis makes an analysis of seismic performance of the frame-supported shear wall structure with high transfer floor. It focuses on the structural effect from the changes in the location of the conversion layer. Besides, rational distribution of layer stiffness of the high conversion layer structure has been mainly discussed.

scholarly journals Seismic analysis of Kunshan Xintiandi super high-rise residential building

2021 ◽  
Vol 248 ◽  
pp. 03015
Author(s):  
Xiaomeng Zhang ◽  
Wenting Liu ◽  
Qingying ren ◽  
Yilun Zhou ◽  
Ziao Liu ◽  
...  
Keyword(s):  
Mechanical Performance ◽  
Seismic Analysis ◽  
Residential Buildings ◽  
Investment Project ◽  
Residential Building ◽  
Shear Wall ◽  
Wall Structure ◽  
Second Phase ◽  
Structure System ◽  
High Rise

The Kunshan urban investment project includes 1 office tower, 4 high-rise residential buildings and 1 high-rise commercial building.Each monomer shares a large basement chassis, a total of three basement floors.This design is the second phase (4# residence and corresponding basement).The height of the structure is more than 90 meters, and it is a shear wall structure system. The selection and structure of the structure system are analyzed, and the mechanical performance of the structure is verified through calculation and analysis.

Study on Rational Ratios of Lateral Stiffness for Masonry Building with Frame Structure at First Two Stories

2012 ◽  
Vol 174-177 ◽  
pp. 2012-2015
Author(s):  
Xiao Long Zhou ◽  
Ying Min Li ◽  
Lin Bo Song ◽  
Qian Tan
Keyword(s):  
Seismic Performance ◽  
Time History ◽  
Shear Wall ◽  
Calculation Model ◽  
Frame Structure ◽  
Wall Structure ◽  
Masonry Building ◽  
Lateral Stiffness ◽  
Stiffness Ratio ◽  
Lateral Stiffness Ratio

There are two typical seismic damage characteristics to the masonry building with frame shear wall structure at first two stories, and the lateral stiffness ratio of the third storey to the second storey is one of the key factors mostly affecting the seismic performance of this kind of building. However, some factors are not considered sufficiently in current Chinese seismic codes. According to the theory of performance-based seismic design, the seismic performance of this kind of structure is analyzed in this paper by taking time-history analysis on models which with different storey stiffness ratios. The results show that when the lateral stiffness ratio controlled in a reasonable range, the upper masonry deformation can be ensured in a range of elastic roughly, and the bottom frame can be guaranteed to have sufficient deformation and energy dissipation capacity. Finally, according to the seismic performance characteristics of masonry building with frame shear wall structure at first two stories, especially the characteristics under strong earthquakes, a method of simplified calculation model for the upper masonry is discussed in this paper.

Measured natural periods of concrete shear wall buildings: insights for the design of Canadian buildings

2012 ◽  
Vol 39 (8) ◽  
pp. 867-877 ◽  
Author(s):  
Damien Gilles ◽  
Ghyslaine McClure
Keyword(s):  
Seismic Analysis ◽  
Dynamic Properties ◽  
Response Spectrum ◽  
Shear Wall ◽  
Mode Shapes ◽  
Design Stage ◽  
Base Shear ◽  
Period Equation ◽  
Input Load ◽  
Structural Engineers

Structural engineers routinely use rational dynamic analysis methods for the seismic analysis of buildings. In linear analysis based on modal superposition or response spectrum approaches, the overall response of a structure (for instance, base shear or inter-storey drift) is obtained by combining the responses in several vibration modes. These modal responses depend on the input load, but also on the dynamic characteristics of the building, such as its natural periods, mode shapes, and damping. At the design stage, engineers can only predict the natural periods using eigenvalue analysis of structural models or empirical equations provided in building codes. However, once a building is constructed, it is possible to measure more precisely its dynamic properties using a variety of in situ dynamic tests. In this paper, we use ambient motions recorded in 27 reinforced concrete shear wall (RCSW) buildings in Montréal to examine how various empirical models to predict the natural periods of RCSW buildings compare to the periods measured in actual buildings under ambient loading conditions. We show that a model in which the fundamental period of RCSW buildings varies linearly with building height would be a significant improvement over the period equation proposed in the 2010 National Building Code of Canada. Models to predict the natural periods of the first two torsion modes and second sway modes are also presented, along with their uncertainty.

scholarly journals Non-Linear Seismic Analysis of Steel Plate Shear Wall Subjected to Blast Loading

2020 ◽  
Vol 955 ◽  
pp. 012025
Author(s):  
Prashant Sunagar ◽  
Manish S Dharek ◽  
K Nruthya ◽  
K S Sreekeshava ◽  
B Nagashree ◽  
...  
Keyword(s):  
Steel Plate ◽  
Seismic Analysis ◽  
Blast Loading ◽  
Shear Wall ◽  
Steel Plate Shear Wall ◽  
Non Linear

Study on the shear wall structure with combined form of replaceable devices

2017 ◽  
Vol 21 (9) ◽  
pp. 1327-1348
Author(s):  
Cong Chen ◽  
Renjie Xiao ◽  
Xilin Lu ◽  
Yun Chen
Keyword(s):  
Shear Walls ◽  
Shear Wall ◽  
Performance Comparison ◽  
Wall Structure ◽  
Structural Part ◽  
Coupled Shear Wall ◽  
Wall Structures ◽  
Strength And Stiffness ◽  
Energy Dissipated ◽  
Resilient Structure

Structure with replaceable devices is a type of earthquake resilient structure developed to restore the structure immediately after strong earthquakes. Current researches focus on one type of the replaceable device located in the structural part that is most likely to be damaged; however, plastic deformation would not be limited in a specific part but expand to other parts. To concentrate possible damage in shear wall structures, combined form of replaceable devices was introduced in this article. Based on previous studies, combined form of replaceable coupling beam and replaceable wall foot was used in a coupled shear wall. Influences of the dimension and location of the replaceable devices to the strength and stiffness of the shear wall were investigated through numerical modeling, which was verified by experimental data. Performance comparison between the shear walls with one type and combined form of replaceable devices and the conventional coupled shear wall was performed. In general, the shear wall with combined form of replaceable devices is shown to be better energy dissipated, and proper dimensions and locations of the replaceable devices should be determined.

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