Experimental Research on Influence Factors to Bearing Capacity and Stiffness Degradation of Small Concrete Block Walls

SHENG Zhigang; CHEN Xing; PAN Peng

doi:10.13204/j.gyjzG22071404

Volume 53 Issue 10

Oct. 2023

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SHENG Zhigang, CHEN Xing, PAN Peng. Experimental Research on Influence Factors to Bearing Capacity and Stiffness Degradation of Small Concrete Block Walls[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(10): 94-99. doi: 10.13204/j.gyjzG22071404

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SHENG Zhigang, CHEN Xing, PAN Peng. Experimental Research on Influence Factors to Bearing Capacity and Stiffness Degradation of Small Concrete Block Walls[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(10): 94-99. doi: 10.13204/j.gyjzG22071404

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Experimental Research on Influence Factors to Bearing Capacity and Stiffness Degradation of Small Concrete Block Walls

doi: 10.13204/j.gyjzG22071404

1. Key Laboratory of Building Collapse Mechanism and Disaster Prevention, Institute of Disaster Prevention, Beijing 101601, China;
2. MCC Testing and Certification Co., Ltd., Beijing 100088, China;
3. Department of Civil Engineering, Tsinghua University, Beijing 100084, China

Received Date: 2022-07-14
Available Online: 2023-12-18

Abstract

Abstract

Based on L₉(3⁴) orthogonal test design method, choosing four basic influence factors in masonry structures, a set of quasi-static loading tests with nine specimens were carried out to study the shear performance and stiffness degradaion of the small concrete block masonry walls. Four influence factors include:the aspect ratio of the walls, the strength of mortars, the axial compression and the grouted masonry strips. The results showed that the mortar strength was the greatest influential factor to the shear performance of the walls; the axial compression was in the second. For the stiffness degraadation, the greatest influential factor was the grouted masonry strips. Otherwise, a new computational model was suggested for describing the stiffness degradation of the concrete block walls. This model can describe stiffness-degrading of the walls in a better way, and provide some reasonable parameters for statistical analysis.
- structure engineering,
- small concrete block wall,
- quasi-static loading,
- orthogonal experiment,
- shear performance,
- stiffness degradation

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References(21)

References

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