间接搭接的搭接长度公式对比分析  

Comparative Analysis of Lap Lengthlormula of Indirect Lap

作　　者：杨顺 田水[1] 谷倩[1] 梅裕安 刘玖赢 YANG Shun;TIAN Shui;GU Qian;MEI Yu-an;LIU Jiu-ying(School of Civil Engineering and Architecture,Wuhan University of Technology,Wuhan 430070,China;Hefei Branch of Shanghai First Construction Group Co,Ltd,Hefei 230041,China)

机构地区：[1]武汉理工大学土木工程与建筑学院,武汉430070 [2]上海建工一建集团有限公司合肥分公司,合肥230041

出　　处：《武汉理工大学学报》2023年第5期118-122,共5页Journal of Wuhan University of Technology

摘　　要：利用统计分析得到的粘结强度表达式建立了间接搭接的临界搭接长度计算表达式,并将试验值、各国规范公式和文中提出的临界搭接长度表达式进行了对比。结果表明,文中提出的公式计算值与试验值吻合良好,各国规范提供的搭接长度计算结果离散性较大。在我国规范《混凝土结构设计规范》(GB 50010—2010)计算搭接长度公式的基础上引入螺旋箍筋指数进行修正,得到间接搭接的搭接长度表达式,为设计提供参考。The critical lap length calculation expression of indirect lap joint was derived by using the bond strength expression,and the test value,the standard formula of various countries and the critical lap length expression proposed were compared.The results show that the calculation value of the formula proposed was in good agreement with the test value.The calculation results of the lap length provided by the codes of various countries have significant dispersion.On the basis of the calculation of the lap length formula of the Chinese code"Code for Design of Concrete Structures"(GB 50010—2010),the spiral stirrup index was introduced to modify,and the lap length expression of the indirect lap joint was obtained,which provides a reference for the design.

关 键 词：住宅产业化 装配式建筑 间接搭接 搭接长度 横向钢筋 

分 类 号：TU375[建筑科学—结构工程]