Calculation of Shear Capacity of Shear Walls with Small Shear-Span Ratio Based on Equivalent Diagonal Web Truss-Arch Model

JIN Chenhua; WU Chang; PAN Zuanfeng; MENG Shaoping

doi:10.13204/j.gyjzG22091505

Volume 53 Issue 9

Sep. 2023

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JIN Chenhua, WU Chang, PAN Zuanfeng, MENG Shaoping. Calculation of Shear Capacity of Shear Walls with Small Shear-Span Ratio Based on Equivalent Diagonal Web Truss-Arch Model[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(9): 111-118. doi: 10.13204/j.gyjzG22091505

Citation:

JIN Chenhua, WU Chang, PAN Zuanfeng, MENG Shaoping. Calculation of Shear Capacity of Shear Walls with Small Shear-Span Ratio Based on Equivalent Diagonal Web Truss-Arch Model[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(9): 111-118. doi: 10.13204/j.gyjzG22091505

Citation:

JIN Chenhua, WU Chang, PAN Zuanfeng, MENG Shaoping. Calculation of Shear Capacity of Shear Walls with Small Shear-Span Ratio Based on Equivalent Diagonal Web Truss-Arch Model[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(9): 111-118. doi: 10.13204/j.gyjzG22091505

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Calculation of Shear Capacity of Shear Walls with Small Shear-Span Ratio Based on Equivalent Diagonal Web Truss-Arch Model

doi: 10.13204/j.gyjzG22091505

1. School of Architectural Engineering, Jinling Institute of Technology, Nanjing 211169, China;
2. Jiangsu Research Institute of Building Science Co., Ltd., Nanjing 210008, China;
3. School of Civil Engineering, Southeast University, Nanjing 210096, China;
4. College of Civil Engineering, Tongji University, Shanghai 200092, China

Received Date: 2022-09-15
Available Online: 2023-11-08

Abstract

Abstract

Based on the equivalent diagonal web truss-arch model and considering different failure modes and deformation coordination conditions, a method for calculating the shear capacity of small shear-span ratio shear walls was proposed. The effects of both horizontal and vertical reinforcements in the web on the shear capacity of the member through the strain equivalence principle in the truss action were considered in the method, and an empirical formula to calculate the height of the compression zone for determining the section height of the concrete diagonal compression strut were also proposed. The test data of 359 small shear-span ratio shear walls were collected, and their shear capacity was calculated by using the method proposed in the paper, and compared with the Chinese, American, European and Japanese codes. The results showed that except for the Japanese AIJ code, the calculation of shear capacity of small shear-span ratio shear walls were conservative, while the AIJ code overestimated the height of the arch bar, which made its calculation results unsafe; while the proposed formula could calculate the shear bearing capacity of small shear-span ratio shear walls more accurately.
- reinforced concrete shear walls,
- equivalent diagonal web truss-arch model,
- failure modes,
- compatibility of deformation,
- shear capacity

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References(22)

References

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