钢筋混凝土结构非线性全过程分析方法及其应用

Nonlinear full range analysis methods of steel concrete structures and its application

对普通钢筋混凝土结构和预应力混凝土结构在单调荷载及低周反复荷载下的受力全过程进行了模拟分析。程序设计中考虑了材料非线性、几何非线性、轴力二次矩、锚固钢筋的粘结滑移、混凝土的裂面效应、材料的双切线模量以及预应力的特点（包括次内力、预应力筋的应变滞后及其对混凝土裂面效应的影响等）等多种非线性因素的影响。典型算例表明。

In this paper, full range analysis of ordinary reinforced concrete structures and prestressed concrete structures under one way loads or low reversed cyclic loading are studied, the influence of material nonlinearity, geometric nonlinearity, effect of N Δ, slip of anchor bars, local contact effect of cracked concrete sections, loading and unloading tangent modulus and the effect of prestressing are all considered. Imitative calculations of typical tests show, calculations are in good agreements with experimental results.