不锈钢筋珊瑚海水混凝土梁抗剪性能试验及抗剪承载力计算

doi:10.11896/cldb.24100092

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Abstract In order to investigate the shear performance of stainless steel reinforced coral aggregate sea-sand-sea water concrete beams (SSRCAC), ten specimens of SSRCAC beams were designed considering the effects of shear span ratio, spacing of stirrups, reinforcement ratio, and types of reinforcing steel, which included eight specimens with stainless steel reinforcing bars and two specimens with steel reinforcing bars. Through the test, load-displacement curves were obtained, and the shear capacity, strain distribution, and shear ductility were analyzed. The results show that the typical failure mode of the SSRCAC under shear is shear-compression failure, and the stainless steel stirrups of all specimens basically do not reach the yield strength. The development and the number of cracks in specimens with different shear span ratios show no significant differences. Shear span ratio has a large influence on the shear capacity and shear ductility of the specimens. With the shear span ratio λ of 1.0 and 2.0, the shear capacity of stainless steel reinforcement specimens is 18.4% and 64.4% higher than that of carbon steel reinforcement, respectively. The longitudinal reinforcement ratio has little influence on the shear capacity. Finally, considering the effects of stainless steel reinforcement and coral aggregate concrete, a design method for the shear capacity of SSRCAC beams was proposed, which can provide test basis for the application of such structures in marine engineering.

Key words： stainless steel reinforcement coral aggregate concrete beam shear performance shear bearing capacity

Published: 25 November 2025 Online: 2025-11-14

CLC number:

TU398+.9

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	OU Wangsheng
	XU Weisheng
	QIN Qinquan
	CHEN Zongping

Cite this article:

OU Wangsheng,XU Weisheng,QIN Qinquan, et al. Shear Performance Tests and Shear Bearing Capacity Calculation of Stainless Steel Reinforced Coral Aggregate Concrete[J]. Materials Reports, 2025, 39(22): 24100092-9.

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https://www.mater-rep.com/EN/10.11896/cldb.24100092 OR https://www.mater-rep.com/EN/Y2025/V39/I22/24100092

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