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随着电子计算机在设计工作中的广泛应用,钢筋混凝土屋架、托架、框架……等构件内力和变形采用电算分析已经比较普遍,其计算结果比手算分析结果更为精确合理。但是目前在构件内力和变形分析中,一般将钢筋混凝土看成为弹性匀质体,而实际上钢筋混凝土是一种弹塑性材料,其应力应变关系随着构件的受力状态(拉、压、弯)和受
With the wide application of electronic computers in the design work, the calculation of internal forces and deformations of reinforced concrete roof trusses, brackets, frames, etc. has been widely used. The calculation results are more accurate and reasonable than the results of hand calculations. However, in the analysis of internal forces and deformations of components, reinforced concrete is generally regarded as an elastic homogenizer. In fact, reinforced concrete is an elasto-plastic material, and its stress-strain relationship is related to the stress state of the component (pulling, pressing, bending). ) And subject to