FEASIBILITY OF TUBULAR T-JOINTS AS A DAMAGE CONTROLLER FOR ROOF STRUCTURES UNDER LOADING

Satria, Eka (2012) FEASIBILITY OF TUBULAR T-JOINTS AS A DAMAGE CONTROLLER FOR ROOF STRUCTURES UNDER LOADING. International Conference on Construction Industry, Facilities and Asset Management (ICCIFAM). pp. 211-218. ISSN 2302-9013

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Abstract

This paper is aimed to outline characteristics of tubular T-joints that were applied on a new type of two-way system for single layer lattice roof under influence of static and dynamics loads. The proposed roof is composed of two main arches, intersecting each other with welded T-joint struts to provide space for tensioning membranes. Two main characteristics of tubular T-joint were shown in this paper. The first is the nonlinear behaviour of the joints under repeated vertical loading and the second is under seismic horizontal loading. The interesting feature found after the first study is an ability of the system to make self-recovery after loading, since a large displacement occurred due to heavy vertical load almost vanish after unloading. While for the second study, at the strong earthquake motion, the yielding of the tubular T-joints can be used to absorb some amount of strain energy. Consequently, due to those characteristics, deformation of the arches as the main frames of the roof can be reduced and any heavy damages on the arches can be minimized.

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