期刊
JOURNAL OF STRUCTURAL ENGINEERING
卷 146, 期 4, 页码 -出版社
ASCE-AMER SOC CIVIL ENGINEERS
DOI: 10.1061/(ASCE)ST.1943-541X.0002575
关键词
Flanged wall; Peak shear strength; Reinforced concrete; Squat wall; Strut-and-tie model
资金
- Natural Science Foundation of Zhejiang Province, China [LQ19E080008]
- National Science Foundation of China [51808397]
- Shanghai Pujiang Program [18PJ1410100]
Flanged RC squat walls, defined by a shear span ratio less than two, are widely used in conventional buildings and nuclear facilities. However, due to the mechanical defects and insufficient parameters included, equations available in building codes and the literature exhibit significant scatter in predicting the peak shear strength of such walls. In this paper, a modified strut-and-tie model, including effects of flanges, was developed to account for the force-resisting mechanism in flanged RC squat walls and to derive the function form of the peak shear strength equation. Nonlinear regression was conducted to obtain the magnitude of unknown coefficients in the function form using a database containing 119 walls. The finalized equation was simplified and evaluated with models available in the literature. Results revealed that the proposed equation performs much better than current methods and provides guidance for the design of flanged RC squat walls.
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