BEHAVIOR OF MULTIPLE LAP SPLICES IN WIDE SECTIONS.
BEHAVIOR OF MULTIPLE LAP SPLICES IN WIDE SECTIONS.
复制标题
宽截面中多个搭接接头的行为。
DOI：
--
复制
发表时间：
1975
期刊：
影响因子：
--
通讯作者：
D. Meinheit
中科院分区：
文献类型：
--
作者：
M. Thompson;J. Jirsa;J. Breen;D. Meinheit
在大多数钢筋混凝土锚杆挡土墙中，施工过程需要某种类型的钢筋拼接。从经济角度考虑，通常使用搭接法。由于挡土墙没有冗余，因此了解拼接行为对结构设计至关重要。为了研究这种结构中搭接钢筋的性能，对25个试件进行了试验。试件的剪接区域沿剪接长度受到恒定力矩的影响。这种载荷产生的应力条件与原型中的应力条件一样严重。试验程序中的主要变量为拼接长度和棒材直径、拼接透明盖与拼接透明间距的比值、边缘拼接情况、拼接区域横向配筋量以及浇筑位置。研究了试件的开裂模式、钢应变分布和破坏模式，以获得宽截面搭接行为的基本理解。供料/
In most reinforced concrete catilever retaining walls, construction procedures require some type of splicing of the reinforcing steel. Economics often dictate the use of a lap splice. Since a retaining wall has no redundancy, understanding of splice behavior becomes critical to the design of the structure. In order to investigate the behavior of lap splices of the reinforcing steel in such a structure, twenty-five specimens were tested. The specimens were tested with the splice regions subjected to a constant moment along the length of the splice. This loading produced a stress condition as severe as that in the prototype. The main variables in the test program were the splice length and bar diameter, the ratio of the clear cover to the clear spacing of the splices, the edge splice condition, the amount of transverse reinforcement in the splice region, and the casting position. Cracking patterns, steel strain distributions, and failure modes of the specimens were studied to obtain a basic understanding of the behavior of lap splices in wide sections. /FHWA/