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Analysis technique for flexural behavior in RC beam considering autogenous shrinkage effect

机译:考虑自收缩效应的RC梁抗弯性能分析技术

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摘要

This study intends to evaluate an effect of ACS (Autogenous Shrinkage) on flexural behavior in RC member. For this work, ACS tests are performed considering mineral admixtures like fly ash and slag. Based on the test results, previous prediction technique for ACS is modified. The modified technique is considered in the previously developed FE program. Through the FE program with ACS effect, the flexural behaviors in RC beams are evaluated and analyzed. The tensile stresses and deflections in the middle span of RC beam increase by 20-21% and 5.2-10.8%, respectively due to the effect of drying shrinkage and AGS. The reasonable technique is proposed through considering the models for material and structural behavior.
机译:本研究旨在评估ACS(自体收缩)对RC构件弯曲行为的影响。对于这项工作,ACS测试是在考虑矿物掺合物(例如粉煤灰和矿渣)的情况下进行的。根据测试结果,修改了先前的ACS预测技术。在先前开发的有限元程序中考虑了修改后的技术。通过具有ACS效应的有限元程序,对RC梁的弯曲行为进行了评估和分析。由于干燥收缩和AGS的作用,RC梁中跨的拉应力和挠度分别增加了20-21%和5.2-10.8%。通过考虑材料和结构行为的模型,提出了合理的技术。

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