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EXPERIMENTAL ANALYSIS OF STEEL SPACE TRUSS STRUCTURE

Beqir Hamidi, Naser Lajqi, Shpëtim Lajqi

Open publisher page 2 citations

Abstract

In the paper is presented experimental analysis of steel space truss structure. The space truss structure was loaded by spatial set of forces that simulate real condition of the structure with eight balanced member forces (4 chord and 4 diagonal members), up to structure failure. It was realized in a specially designed test facility. Tested space truss structure samples were made in real scale, according to the model originated after finite element analysis and optimization. Basic idea was to construct and test a space truss structure that can be made in average technology conditions, without special tools and requirements. Besides, results of a stress-strain finite element analysis are presented and comparison of the two analyses is given for the most critical regions of the space truss structure. Values of measured and calculated strains across model samples and characteristic measuring points are presented.

About this research paper

What this paper is about

In the paper is presented experimental analysis of steel space truss structure. The space truss structure was loaded by spatial set of forces that simulate real condition of the structure with eight balanced member forces (4 chord and 4 diagonal members), up to structure failure. It was realized in a specially designed test facility. Tested space truss structure samples were made in real scale, according to the model originated after finite element analysis and optimization. Basic idea was to construct and test a space truss structure that can be made in average technology conditions, without special tools and requirements. Besides, results of a stress-strain finite element analysis are presented and comparison of the two analyses is given for the most critical regions of the space truss structure. Values of measured and calculated strains across model samples and characteristic measuring points are presented.

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Available abstract

In the paper is presented experimental analysis of steel space truss structure. The space truss structure was loaded by spatial set of forces that simulate real condition of the structure with eight balanced member forces (4 chord and 4 diagonal members), up to structure failure. It was realized in a specially designed test facility. Tested space truss structure samples were made in real scale, according to the model originated after finite element analysis and optimization. Basic idea was to construct and test a space truss structure that can be made in average technology conditions, without special tools and requirements. Besides, results of a stress-strain finite element analysis are presented and comparison of the two analyses is given for the most critical regions of the space truss structure. Values of measured and calculated strains across model samples and characteristic measuring points are presented.

Key concepts: Truss, Chord (peer-to-peer), Structural engineering, Finite element method, Diagonal, Space (punctuation), Engineering, Mathematics

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