普通箍筋长度计算公式的推导  

The Derivation for Length Calculation of Common Stirrup

作　　者：李海凌[1] 熊伟[1] 王青青[1] 胡榉丹 

机构地区：[1]西华大学建设与管理工程学院,四川成都610039

出　　处：《西华大学学报（自然科学版）》2015年第6期101-103,112,共4页Journal of Xihua University:Natural Science Edition

基　　金：西华大学重点科研基金项目(z1320607)

摘　　要：实际工程中,箍筋长度计算的假设及公式一直都未统一。本研究从造价计量的角度,在定义保护层厚度、弯心直径、内包中心线、外包尺寸、弯钩长度、量度差、抗震与非抗震的基础上,剖析常用计量软件假设条件下的箍筋计算公式,再按中心线尺寸推导了普通的标准双肢箍筋长度的理论计算公式,并对比算量软件与中心线理论长度的计算偏差。按中心线理论长度计算可避免钢筋加工时内压外拉的量度差影响,比软件计算的长度精确5.3d,推荐实际工程采用中心线理论统一箍筋长度的计算。For the length calculation of stirrup,it is not formed the unified standard in engineering. Based on the definition of thickness of protection layer,diameter of flexural center,center length of inner package,length of outer package,length of rebar hook,the measure of the difference,anti- seismic and non- seismic,The stirrup＇calculation formula under the assumption of common measurement software was analyzed,the theoretical calculation formula for the center line of common stirrup was derived,and then compared the calculated deviation between common measurement software and the center line theory. The center line theory was more accurate,because it can avoid the steel processing measure when internal pressure external pull difference effect. The theoretical calculation formula for the center line of common stirrup was recommended in engineering.

关 键 词：箍筋 弯心 理论长度 

分 类 号：TU723.3[建筑科学—建筑技术科学]