桥梁工程剪力滞效应的能量分析方法综述

REVIEW OF ENERGY PRINCIPLES ON SHEAR LAG EFFECT ANALYSIS IN BRIDCE ENGINEERING

能量变分原理因具有数学形式简洁,物理内涵明确的特点,已经成为了分析桥梁工程剪力滞问题的主要方法之一.文中综述了近十几年来国内外学者基于能量方法分析桥梁剪力滞效应的研究,对剪力滞效应在位移模式,结构与构造及动力特性等方面进行了全面总结与分析,最后对能量方法在剪力滞分析中的广义位移选取,受力特性分析及非线性效应方面进行了展望,为相关研究提供有价值的参考.

For its simple mathematical form and clear physical connotation,energy variational method has become one of the main methods to analyze the shear lag issue in bridge engineering.This paper reviews the research on the analysis of bridge shear lag effect applied to energy method in recent ten years,and makes a comprehensive summa-ry and analysis of shear lag effect in the aspects of displacement mode,construction and structure,and dynamic char-acteristics.Finally,the generalized displacement selection,mechanical characteristics analysis,and nonlinear effect of energy method in shear lag effect are prospected.