Experimental and analytical behaviour of steel-timber composite connections

被引：111

作者：

Hassanieh, A. ^{[1
]}

Valipour, H. R. ^{[1
]}

Bradford, M. A. ^{[1
]}

机构：

[1] UNSW Sydney, UNSW Australia, Ctr Infrastruct Engn & Safety, Sch Civil & Environm Engn, Sydney, NSW 2052, Australia

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2016年 / 118卷

关键词：

Hybrid structure; Load-slip; Shear-connectors; Steel-timber composite (STC); Timber; WOOD CONNECTIONS; STRENGTH; JOINTS; LUMBER; FASTENERS; DIRECTION; DESIGN; PLATE;

D O I：

10.1016/j.conbuildmat.2016.05.052

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The mechanical characteristics of steel-timber composite (STC) connections play an essential role in the safe and economical design of hybrid STC structures and floor systems. Accordingly, this study investigates the load-slip behaviour of lap Laminated Veneer Lumber (LVL) timber-steel plate composite joints. Push-out tests on four different types of STC lap joints connected by coach screws (with and without a reinforcing nail plate), high-strength bolts and a combination of glued and screwed joints are reported, and the load-slip behaviour and failure modes of the connections are characterised. The use of a nail plate is found to be effective in reinforcing the timber and in increasing the stiffness of STC lap joints with coach screws, but they did not produce a significant improvement of their strength. A non-linear regression is carried out and an empirical load-slip formulation for STC lap joints with coach screws and high strength bolted connectors is proposed in analytical form. Furthermore, simple formulae for the strength and stiffness of LVL-steel lap connections with coach screws are proposed. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：63 / 75

页数：13

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