混凝土箱梁钢筋保护层厚度问题研究  

A Study on Reinforcement Protection Layer Thickness of Concrete Box Girders

作　　者：雷笑[1] 叶见曙[1] 张峰[1] 

机构地区：[1]东南大学交通学院桥梁与隧道工程研究所,南京市210096

出　　处：《公路》2007年第1期83-89,共7页Highway

基　　金：江苏省交通科学研究资助项目(04Y051);交通部西部交通建设科技资助项目(2001-318-223-58)

摘　　要：为了了解目前我国预应力混凝土连续箱梁的钢筋保护层厚度的实际情况,对结构的计算检验提供参考,以对预应力混凝土连续箱梁的调查为工程背景,采用现场调查方法对箱梁钢筋保护层厚度问题进行了研究。调查研究得到了混凝土箱梁桥钢筋保护层超标数量在箱梁横截面上的概率分布,并得出了不同施工方法对箱梁钢筋保护层厚度的影响。In order to know about the reinforcement protection layer thickness of prestressed concrete continuous box girders in China at present and provide the reference for Calculation and test of structure, and on the basis of the field survey,a study is made on the reinforcement protection layer thickness of some prestressed concrete continuous box girders which are the background project. Through investigating detailedly, the probability distribution of the over. size amount of the reinforcement protection layer thickness of concrete box girders reinforcement On the cross section of box girders are obtained and the effect of different constructional method on the protection layer thickness of the box girders are given.

关 键 词：混凝土箱梁 保护层厚度 调查 

分 类 号：U448.213[建筑科学—桥梁与隧道工程]