带钢板UHPC湿接缝梁的抗剪性能试验研究_《混凝土与水泥制品》杂志社

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发布时间：2020-01-06 00:00:00

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带钢板UHPC湿接缝梁的抗剪性能试验研究

Experimental Research on Shear Performance of UHPC Wet Joint Beams with Steel Plates

2022年第11期

UHPC梁；钢板；湿接缝；抗剪性能；裂缝

UHPC beam; Steel plate; Wet joint; Shear performance; Crack

2022年第11期

10.19761/j.1000-4637.2022.11.039.05

文庆军1，邓华1，王凯2，欧阳康3，晏班夫3

1.广西路桥工程集团有限公司，广西南宁 530200；2.湖南大学土木工程学院，湖南长沙 410082；3.广西大学土木建筑工程学院，广西南宁 530004

文庆军1，邓华1，王凯2，欧阳康3，晏班夫3

文庆军,邓华,王凯,等.带钢板UHPC湿接缝梁的抗剪性能试验研究[J].混凝土与水泥制品,2022(11):39-43.

WEN Q J,DENG H,WANG K,et al.Experimental Research on Shear Performance of UHPC Wet Joint Beams with Steel Plates[J].China Concrete and Cement Products,2022(11):39-43.

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摘要：为研究带钢板UHPC湿接缝梁的抗剪性能及其理论计算方法，设计和制作了3个带钢板UHPC菱形湿接缝试验梁，采用四点法进行了抗剪试验研究，并根据法国规范SETRA-AFGC 2016对试验结果进行了验算。结果表明：带钢板UHPC湿接缝梁的抗剪承载力随剪跨比增加而减小，当剪跨比为2.4时，延性最佳；带钢板UHPC湿接缝梁破坏形态均为接缝错位剪切破坏，主裂缝沿接缝靠近跨中一侧发展，接缝中下部发生错位，靠近支点侧出现密集斜裂缝；计算值与试验值之比平均值为0.7，可用于指导设计。 Abstract: In order to study the shear performance and theoretical calculation method of the UHPC wet joint beams with steel plates, 3 pieces of UHPC diamond-shaped wet joint test beams with steel plates were designed and fabricated for shear test research. The four point method was adopted to conduct shear test research, and the test results were verified by using SETRA-AFGC 2016. The test results show that the shear capacity of UHPC wet joint beams with steel plates decreases with the increase of shear span ratio, and the ductility is the best at the shear span ratio of 2.4. The damage form of the joint beam is joint misalignment shear damage, the main crack develops along the side of the wet joint near the middle of the span, the misalignment occurs in the middle and lower part of the joint, and the dense oblique cracks appear near the branch side. The average value of the ratio of calculated and the test values is 0.7, which is suitable for the designing guidance.

英文名 : Experimental Research on Shear Performance of UHPC Wet Joint Beams with Steel Plates

刊期 : 2022年第11期

关键词 : UHPC梁；钢板；湿接缝；抗剪性能；裂缝

Key words : UHPC beam; Steel plate; Wet joint; Shear performance; Crack

刊期 : 2022年第11期

DOI : 10.19761/j.1000-4637.2022.11.039.05

文章编号 :

基金项目 :

作者 : 文庆军1，邓华1，王凯2，欧阳康3，晏班夫3

单位 : 1.广西路桥工程集团有限公司，广西南宁 530200；2.湖南大学土木工程学院，湖南长沙 410082；3.广西大学土木建筑工程学院，广西南宁 530004

文庆军1，邓华1，王凯2，欧阳康3，晏班夫3

文庆军,邓华,王凯,等.带钢板UHPC湿接缝梁的抗剪性能试验研究[J].混凝土与水泥制品,2022(11):39-43.

WEN Q J,DENG H,WANG K,et al.Experimental Research on Shear Performance of UHPC Wet Joint Beams with Steel Plates[J].China Concrete and Cement Products,2022(11):39-43.

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引用本文

Abstract: In order to study the shear performance and theoretical calculation method of the UHPC wet joint beams with steel plates, 3 pieces of UHPC diamond-shaped wet joint test beams with steel plates were designed and fabricated for shear test research. The four point method was adopted to conduct shear test research, and the test results were verified by using SETRA-AFGC 2016. The test results show that the shear capacity of UHPC wet joint beams with steel plates decreases with the increase of shear span ratio, and the ductility is the best at the shear span ratio of 2.4. The damage form of the joint beam is joint misalignment shear damage, the main crack develops along the side of the wet joint near the middle of the span, the misalignment occurs in the middle and lower part of the joint, and the dense oblique cracks appear near the branch side. The average value of the ratio of calculated and the test values is 0.7, which is suitable for the designing guidance.

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