摘要
本文通过对一根普通组合连续梁和一根体外预应力组合连续梁的对比试验研究和理论分析,提出了体外预应力组合连续梁的挠度计算方法,通过与试验结果的比较,发现该方法能较好地预测预应力组合连续梁的挠度变形,并且形式简单,易于被工程人员理解,可以为该结构的进一步推广提供参考。
Based on experimental and theoretical research on load carrying capacity and performance of continuous steel-concrete composite beams, this paper provides a deflection calculation method on continuous steel-concrete composite beams pre-stressed with external tendons. The comparative analysis results of the theoretical method and actual values show that the adjustment method for deflection calculation can better forecast the deflection at the mid-span . For it’s simple form, it can be easy to understand and be a reference for the promotion of this structure.
基金
国家自然科学基金(50678132)
关键词
工程结构
挠度计算
理论与试验
连续组合梁
体外预应力
engineering structures
deflection calculation
theory and experiment
continuous composite beam
external pre-stress
