Hollow Section Roof Truss

Resistance of welds 1.

Hollow section roof truss. Roof trusses being advantageous there is a need to achieve economy in the design of truss members and also while selecting the sections. The general arrangement is similar to that described for a transverse wind girder. Introduction the structural elements made of circular or rectangular square hollow sections are usually used for lattice structures roof trusses and lattice. With it it is possible to optimize the truss with just a few key parameters.

Ssab has developed a unique tool for its customers and designers for designing roof trusses with structural hollow sections. Rectangular hollow section rhs braces and i or h section chord. Fem analysis of truss hollow section joint samir lemeš university of zenica. Generally chord members will be provided from hollow sections.

It can optimize the truss to either minimize the mass or manufacturing costs. Geometry loads and steel grades. Warren or pratt truss. Siko l et al.

It is necessary to provide a longitudinal wind girder between braced gable ends in buildings where the roof trusses are not portalized. Large scale hollow structural section hss truss tests have been done by dasgupta 1970 edwards and giddings 1974 de koning and wardenier 1979 ogle and kulak 1981 korol 1983 czechowski et al. 1984 philiastides 1988 and frater and packer 1992 with additional analysis performed by coutie and saidani 1989 1991 on tests by philiastides 1988. 2 shows truss section analysed with fem software the.

Determining the efficiency of the design process as mentioned in the earlier chapters the efficiency of the single long span truss structure to the multi truss system could be measured by dividing the weight of the. The truss configurations used in. In this paper an attempt is made to derive economy by designing the truss by using tubular sections and comparing it with conventional steel sections. Due to symmetry only one segment was analysed by means of fem software fig 1 shows the actual structure and fig.