Live load distribution equations for integral bridge substructures

被引：17

作者：

Erhan, Semih

Dicleli, Murat

机构：

[1] Department of Engineering Sciences, METU

来源：

ENGINEERING STRUCTURES | 2009年 / 31卷 / 05期

关键词：

Integral bridges; Live loads; Load distribution; Abutment; Pile; STEEL H-PILES; ABUTMENT BRIDGE; HIGHWAY BRIDGES; GIRDER BRIDGES; BEHAVIOR;

D O I：

10.1016/j.engstruct.2009.01.020

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this study, live load distribution equations (LLDEs) for integral bridge (IB) substructures are developed. For this purpose, numerous 3-D and corresponding 2-D structural models of typical IBs are built and analyzed under AASHTO live load. In the analyses, the effect of various superstructure and substructure properties such as span length, girder spacing, girder stiffness, abutment height, pile size, pile spacing and foundation soil stiffness are considered. The results from the 2-D and 3-D analyses are then used to calculate the live load distribution factors (LLDFs) for the abutments and piles of IBs as a function of the above mentioned properties. LLDEs are then developed to estimate the live load moments and shear in the abutments and piles of IBs using these LLDFs and nonlinear regression analysis methods. It is observed that the developed LLDEs yield a reasonably good estimate of live load moment and shear in the abutments and piles of IBs. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1250 / 1264

页数：15

共 27 条

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