An experimental analysis of a timber Howe truss

被引：5

作者：

Islam, A. K. M. Anwarul ^{[1
]}

Phillips, Daniel ^{[1
]}

机构：

[1] Youngstown State Univ, Civil & Environm Engn, Youngstown, OH 44555 USA

来源：

STRUCTURES | 2017年 / 10卷

关键词：

Howe truss; Covered bridges; Trusses in timber bridges; Forces in counter webs; Railroad bridges; Experimental analysis of a Howe truss;

D O I：

10.1016/j.istruc.2016.12.003

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

An experimental analysis was conducted on a wood Howe truss, frequently used in covered timber bridges, to determine forces in counter webs. For appropriate design and rehabilitation of a timber Howe truss bridge, it is necessary to understand the transfer of forces through the truss members, particularly through the counter webs. It is often difficult to properly model and determine forces in the counter webs using structural analysis software. In order to determine forces in counter webs, experimental load tests using strain gages and moving loadswere performed on a 1/8th scale physicalmodel of awoodHowe truss. Test results indicate that the counter webs carry a small percentage of the applied loads, which is contrary to our current consideration that counter webs are zero-force members. (C) 2016 Institution of Structural Engineers. Published by Elsevier Ltd. All rights reserved.

引用

页码：39 / 48

页数：10