A study on the seismic performance of steel-reinforced concrete frame-concrete core wall high-rise mixed structure by large-scale shaking table tests and numerical simulations

2013 ◽  
Vol 42 (13) ◽  
pp. 1951-1969 ◽  
Author(s):  
Ziguo Xu ◽  
Peifu Xu ◽  
Congzhen Xiao
Keyword(s):  
Seismic Performance ◽  
Large Scale ◽  
Shaking Table ◽  
Shaking Table Tests ◽  
Mixed Structure ◽  
Reinforced Concrete Frame ◽  
Concrete Core ◽  
Steel Reinforced Concrete ◽  
Concrete Frame ◽  
High Rise

Seismic Performance Analysis of Steel Reinforced Concrete Frame-Concrete Core Wall Structure

2011 ◽  
Vol 243-249 ◽  
pp. 740-745 ◽  
Author(s):  
Qing Ning Li ◽  
Qing Mei Liu ◽  
Lin Zhao
Keyword(s):  
Reinforced Concrete ◽  
Time History ◽  
Wall Structure ◽  
Reinforced Concrete Frame ◽  
Concrete Core ◽  
Steel Reinforced Concrete ◽  
Concrete Frame ◽  
High Rise ◽  
History Analysis ◽  
Rare Earthquake

A steel reinforced concrete frame-concrete core wall structure is taken as the research object in this paper. The whole space finite element models are established by software ETABS, modal analysis, response spectrum method and elastic time-history analysis are conducted. And static elastio-plastic time history analysis of the high-rise structure is conducted by software MIDAS/GEN. Seismic response of the high-rise structure is analyzed under medium earthquake and rare earthquake , elastic deformation is calculated under conventional earthquake and elastic-plastic deformation is calculated under rare earthquake. The results show that the structure can meet the requirements of no-damage under light earthquake, repairable under medium earthquake and no-collapse under strong earthquake.

Seismic Performance Evaluation for Steel Reinforced Concrete Frame Structures

2011 ◽  
Vol 255-260 ◽  
pp. 2421-2425
Author(s):  
Qiu Wei Wang ◽  
Qing Xuan Shi ◽  
Liu Jiu Tang
Keyword(s):  
Reinforced Concrete ◽  
Seismic Performance ◽  
Frame Structure ◽  
Reinforced Concrete Frame ◽  
Seismic Performance Evaluation ◽  
Steel Reinforced Concrete ◽  
Concrete Frame ◽  
Structural Capacity ◽  
Reinforced Concrete Frame Structures ◽  
Dynamic Nonlinear Analysis

The randomness and uncertainty of seismic demand and structural capacity are considered in demand-capacity factor method (DCFM) which could give confidence level of different performance objectives. Evaluation steps of investigating seismic performance of steel reinforced concrete structures with DCFM are put forward, and factors in calculation formula are modified based on stress characteristics of SRC structures. A regular steel reinforced concrete frame structure is analyzed and the reliability level satisfying four seismic fortification targets are calculated. The evaluation results of static and dynamic nonlinear analysis are compared which indicates that the SRC frame has better seismic performance and incremental dynamic analysis could reflect more dynamic characteristics of structures than pushover method.

Seismic performance of a controlled rocking reinforced concrete frame

2016 ◽  
Vol 20 (1) ◽  
pp. 4-17 ◽  
Author(s):  
Liang Lu ◽  
Xia Liu ◽  
Junjie Chen ◽  
Xilin Lu
Keyword(s):  
Reinforced Concrete ◽  
Cyclic Loading ◽  
Seismic Performance ◽  
Shaking Table Test ◽  
Joint Stiffness ◽  
Shaking Table ◽  
Reinforced Concrete Frame ◽  
Concrete Frame ◽  
Metallic Dampers ◽  
Reversed Cyclic

A controlled rocking reinforced concrete frame is a new type of vibration control structure system that uses resilient rocking columns and joints. The effects of earthquakes on this type of structure are reduced by weakening the overall stiffness, whereas the lateral displacement is controlled by the energy-dissipation dampers introduced into the structure. Two tests were performed for research: the reversed cyclic loading test and shaking table test. Two single-span single-story controlled rocking reinforced concrete frames were designed for reversed cyclic loading tests. These tests (i.e. a column-base joint stiffness test, beam-column joint stiffness test, and frame stiffness test) were performed under different conditions. The mechanical analysis model of the rocking joints was derived from the test results. With the parameters obtained from the cyclic tests, a numerical simulation method that established the analytical model of the controlled rocking reinforced concrete frame using the program ABAQUS is proposed, and the dynamic time-history analysis results of the controlled rocking reinforced concrete frame and of the conventional approach are compared to investigate the vibration control effect and seismic performance of the controlled rocking reinforced concrete frame. In addition, the inter-story drift could be effectively controlled by adding metallic dampers, and the shaking table test models of the controlled rocking reinforced concrete frame with metallic dampers were designed and constructed. The comparison of the results of the numerical analysis and the shaking table test demonstrates that the model building of the controlled rocking reinforced concrete frame structure is efficient and that the controlled rocking reinforced concrete frame exhibits an excellent seismic performance.

Research on Seismic Strengthening with the Performance of the Dynamic Measurement Method

2014 ◽  
Vol 1021 ◽  
pp. 152-155 ◽  
Author(s):  
Jian Jian Zhang ◽  
Yong Sheng Zhang
Keyword(s):  
Seismic Performance ◽  
Dynamic Characteristics ◽  
Residential Building ◽  
High Sensitivity ◽  
Modal Identification ◽  
Frame Structure ◽  
Test Results ◽  
Reinforced Concrete Frame ◽  
Concrete Frame ◽  
High Rise

The structure of the dynamic characteristics can comprehensively reflect the seismic performance of the structure. By high sensitivity under external excitation vibration pickup pick structure dynamic response to obtain the dynamic characteristics of buildings, this paper introduces the principle of vibration test and modal identification method of information. To high-rise shear wall of reinforced concrete frame structure of a residential building as an example, has carried on the test, through the test results of the seismic performance of this structure after reinforcement.

Seismic performance of helical piles in dry sand from large-scale shaking table tests

Géotechnique ◽  
2019 ◽  
Vol 69 (12) ◽  
pp. 1071-1085 ◽  
Author(s):  
Moustafa Khaled Elsawy ◽  
M. Hesham El Naggar ◽  
Amy Cerato ◽  
Ahmed Elgamal
Keyword(s):  
Seismic Performance ◽  
Large Scale ◽  
Shaking Table ◽  
Shaking Table Tests ◽  
Helical Piles ◽  
Dry Sand
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