Behavior of Bolted Steel Angles underTension: A Study

Mohammad Nazish Hussain, Mohammad Nazrul Hussain


The tension members basically take axial load. There is a wide range of usage in the construction of steel structures. In the literature it is found that the analysis is carried out on strengths of various sections by considering shear lag effect using Australia / New Zealand, British and North American standards. They developed analog beam method to analyze shear lag effect and in some literature they used ANSYS for design and analysis. The tensile strength of members found by varying gauge distance, edge distance, end distance, pitch, and thickness of angle. In this project work the tensile strength of various sections with Australia / New Zealand, British and Indian standards are presented. Angle and plate sections are being used to find the tensile strength in this study. The procedures involved in the Australia/ New Zealand and Indian codal standards for the analysis of tension members is studied. Codal provisions given by different countries have different specification for analysis of angle sections. Due to this, the strength obtained by the different codes may vary. Therefore, the interest is to study the variation of strength obtained by the codal provisions given by Australia / New Zealand, British and Indian standards. To obtain this different angle sections are taken up for analysis using IS 800:2007, BS5950 and AS/ NZS 4600:2000. The strength of the tension member depends upon the factors such as length of connection, size of spacing of fasteners, net area of cross section, distance of connection from root radius. Therefore angle sections with varying gauge length, length of connection, thickness, net area and distance of connection is taken up to study the variation of strength. The results obtained shows that there is a decrease in strength from plate to angle section. The change in strength may be reduced by decreasing the gauge distance and increasing the angle thickness and by connecting longer leg. It is concluded that angle sections can be effective and economical as tension member with some considerations at the time of design.

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