EXPERIMENTAL RESEARCH ON SHEAR CAPACITY OF PRESTRESSED TRUSS-TYPE STEEL-REINFORCED CONCRETE BEAMS

LIU Jiaqi; CAO Dafu; WANG Kun; ZHOU Yanling; DONG Zheng

doi:10.13204/j.gyjzG21051308

Volume 51 Issue 10

Feb. 2022

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LIU Jiaqi, CAO Dafu, WANG Kun, ZHOU Yanling, DONG Zheng. EXPERIMENTAL RESEARCH ON SHEAR CAPACITY OF PRESTRESSED TRUSS-TYPE STEEL-REINFORCED CONCRETE BEAMS[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(10): 14-20. doi: 10.13204/j.gyjzG21051308

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LIU Jiaqi, CAO Dafu, WANG Kun, ZHOU Yanling, DONG Zheng. EXPERIMENTAL RESEARCH ON SHEAR CAPACITY OF PRESTRESSED TRUSS-TYPE STEEL-REINFORCED CONCRETE BEAMS[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(10): 14-20. doi: 10.13204/j.gyjzG21051308

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EXPERIMENTAL RESEARCH ON SHEAR CAPACITY OF PRESTRESSED TRUSS-TYPE STEEL-REINFORCED CONCRETE BEAMS

doi: 10.13204/j.gyjzG21051308

1. College of Civil Science and Engineering, Yangzhou University, Yangzhou 225127, China;
2. Jiangsu Hanjian Group Co., Ltd., Yangzhou 225127, China

Received Date: 2021-05-13
Available Online: 2022-02-21

Abstract

Abstract

In order to study the influence of prestress, shear-span ratio and vertical girder spacing on the shear properties of new type prestressed trussed steel-reinforced concrete beams, in this paper, five prestressed trussed steel reinforced concrete beams and one non-prestressed trussed steel reinforced concrete beam were designed and fabricated for the static shear test. The cracking load, ultimate load and deflection deformation of specimens were studied. The experimental results showed that the application of pre-stress and the reduction of the distance between vertical webs improved the shear capacity of members and effectively limited the generation and development of cracks, while the shear capacity of members decreased with the increase of the shear-span ratio. Based on the shear failure mechanism and experimental data, the shear bearing capacity formula of prestressed trussed steel-reinforced concrete beams was presented for engineering design reference.
- prestressed concrete,
- truss-type,
- shear bearing capacity,
- experimental study

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References(12)

References

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