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Non linear procedure for the analysis of FRP reinforced frames

机译:FRP加固框架的非线性分析方法

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摘要

The effect of the FRP strengthening on the global response of a portal r.c. frame is analysed in this paper. In order to account for the non linear phenomena due to the cracking in concrete, tension stiffening effects, yielding of steel and interaction at the FRP-concrete and steel-concrete interfaces, a suitable iterative methodology is developed and applied. The response of r.c. structures reinforced with different amount and location of FRP sheets, subjected to constant vertical loads and increasing horizontal actions, is judged on the basis of push-over analysis. The obtained results allow highlighting the variation of strength and ductility when different reinforcing schemes are adopted.
机译:FRP增强对门户r.c.的全球响应的影响本文对框架进行了分析。为了解决由于混凝土开裂,抗拉刚度效应,钢的屈服以及FRP-混凝土和钢-混凝土界面的相互作用引起的非线性现象,开发并应用了一种合适的迭代方法。 RC的回应在推覆分析的基础上,对采用不同数量和位置的FRP板加固的结构,承受恒定的垂直载荷和增加的水平作用。当采用不同的加固方案时,获得的结果可以突出显示强度和延展性的变化。

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