Shear lag effect formula of corrugated steel webs based on spring model

2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR) Pub Date : 2021-11-06 DOI:10.1109/ICHCESWIDR54323.2021.9656338

Saidong Wei, Xiaoguang Wu

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Abstract

The stress characteristics of composite box girder with corrugated steel webs are quite different from those of ordinary concrete box girder. In order to study the normal stress distribution law of the upper and lower flange plates of the corrugated steel web shear lag effect, the corrugated steel web flange plate is reasonably equivalent to the longitudinal parallel parallel spring model. The minimum potential energy principle is used to understand the warping displacement function form of the corrugated steel web, and the normal stress distribution of the wing plate is obtained. Finally, the calculation formula for the normal stress distribution of the corrugated steel web flange plate is obtained. By comparing the calculated values and the measured values with the finite element values, it is found that the formula has good applicability to solve the normal stress distribution of corrugated steel web box girder under shear lag effect.

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基于弹簧模型的波纹钢腹板剪力滞效应公式

波形钢腹板组合箱梁的应力特性与普通混凝土箱梁有很大的不同。为了研究波纹钢腹板剪切滞后效应下上下翼缘板的正态应力分布规律，将波纹钢腹板翼缘板合理等效为纵向平行平行弹簧模型。利用最小势能原理了解波纹钢腹板翘曲位移函数形式，得到翼板的正应力分布。最后，得到了波纹钢腹板法兰板的正应力分布计算公式。将计算值、实测值与有限元值进行比较，发现该公式对于求解剪力滞作用下波纹钢腹板箱梁的正态应力分布具有较好的适用性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR)

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