Behaviour of reinforced high-strength concrete beam—column joint. Part II: numerical simulation
Behaviour of reinforced high-strength concrete beam—column joint. Part II: numerical simulation
复制标题
钢筋高强混凝土梁柱节点性能第二部分：数值模拟。
DOI：
10.1680/stco.2004.5.3.101
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发表时间：
2004
影响因子：
3.2
通讯作者：
S. El
中科院分区：
文献类型：
--
作者：
A. Atta;S. Taher;A. Khalil;S. El
许多国际规范对梁柱节点的设计规定仅限于普通强度混凝土。本文第一部分介绍的试验工作(结构混凝土，2003，4，第4期，175-183)表明，普通混凝土节点的性能与混合或整体式高强混凝土节点的性能有很大的不同。为了进行广泛的参数研究，对拟静力单调荷载作用下钢筋混凝土I型外节点进行了非线性三维有限元分析。计算模型已通过多次试验进行了验证。数值计算工作的目的是提供更多关于节点行为的见解，并确定节点内载荷传递的基本机制。基本参数包括几何方面的影响以及柱、梁和节点的配筋量和细节量。此外，还对轴心柱L的强度参数、存在与否等进行了探讨。
Design provisions of many international codes for beam–column joints are limited to ordinary-strength concrete. The experimental work presented in Part I of the paper (Structural Concrete, 2003, 4, No. 4, 175–183) has indicated a significant difference in behaviour of normal concrete joints from those made of hybrid or monolithic high-strength concrete joints. To conduct an extensive parametric study, a non-linear, three-dimensional finite-element analysis was carried out for external reinforced concrete type-1 joints under quasi-static monotonic loading. The computational model has been verified and validated against several experimental tests. The numerical work was aimed at providing more insight about the behaviour and determining the fundamental mechanisms of load transfer within the joint. The basic parameters included the effects of geometrical aspects as well as the amounts of reinforcement and detailing in column, girder and joint. Furthermore, the strength parameters, existence of axial column l...