Experimental Investigation on octagonal Street Lighting Columns with Access Hole
IR@SERC: CSIR-Structural Engineering Research Centre, Chennai
View Archive Info| Field | Value | |
| Title |
Experimental Investigation on octagonal Street Lighting Columns with Access Hole
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| Creator |
Balagopal, R.
Prasad Rao, N. Rokade, R.P. Mohan, S.J. |
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| Subject |
Experimental investigation
Octagonal street lighting Tubular steel |
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| Description |
The objective of this investigation is to study the bending strength of octagonal street lighting
columns subjected to wind and gravity loads. Street lighting columns with octagonal cross
section of 12m and 8m high with and without access hole is taken for the present study.
Theoretical studies using codal provisions of EN 40-3-3, ASCE Manual No: 72 along with
other literatures on bending strength of steel tubes has been carried out to find the strength of
street lighting columns. A detailed Finite Element analysis is performed using finite element
software NE-NASTRAN, to study the non-linear behaviour of lighting columns. Experimental
studies were carried out on the full scale lighting column. The load versus strain behavior
and the load versus lateral deflection behaviour was recorded in the elastic and inelastic
range of loading. The full scale specimen was loaded upto destruction level upto visible
buckling occurs near access hole and also reaches unsteady deflection of large magnitude for
a steady load. The ultimate bending strength of the lighting columns have been analysed and
compared with the theoretical and analytical investigations. Based on the above study, the
influence of the presence of access hole in the bending strength of Octagonal street lighting
columns has been arrived at.
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| Date |
2009
2009 2008 |
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| Type |
Conference paper
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| Identifier |
Proceedings of the Sixth Structural Engineering Convention - SEC 2008, 18-20 December, 2008, p.741-750. Jointly Organised by Structural Engineering Research Centre, IIT Madras, and Anna University, Chennai.
http://14.139.176.62:8080/jspui/handle/123456789/200 |
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| Language |
en
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