STRUCTURAL AND ECONOMIC VIABILITY OF 2D/3D FINITE ELEMENT ANALYSIS OF CONICAL ARCHED ROOF TRUSS

JC Ezeokonkwo; CU Nwoji; KE Ezugwu; NC Aneke

doi:10.4314/njt.333.812

STRUCTURAL AND ECONOMIC VIABILITY OF 2D/3D FINITE ELEMENT ANALYSIS OF CONICAL ARCHED ROOF TRUSS

Authors

JC Ezeokonkwo DEPARTMENT OF CIVIL ENGINEERING, UNIVERSITY OF NIGERIA, NSUKKA, ENUGU STATE. NIGERIA
CU Nwoji DEPARTMENT OF CIVIL ENGINEERING, UNIVERSITY OF NIGERIA, NSUKKA, ENUGU STATE. NIGERIA
KE Ezugwu DEPARTMENT OF CIVIL ENGINEERING, UNIVERSITY OF NIGERIA, NSUKKA, ENUGU STATE. NIGERIA
NC Aneke DEPARTMENT OF CIVIL ENGINEERING, UNIVERSITY OF NIGERIA, NSUKKA, ENUGU STATE. NIGERIA

DOI:

https://doi.org/10.4314/njt.333.812

Keywords:

arched conical trusses, hexagon, axial forces, steel section properties, economic viability

Abstract

Arch and conical roof trusses are employed when dealing with large span roof trusses. But a combination of the two geometrical shapes may lead to a better economical sections and a means of dealing with larger spans of roof truss that are not suitable for an arch or conical roof truss. Consequently, this paper examines the structural and economic viability of arched conical roof truss system based on 2D/3D finite element method analysis. Analysis of the results showed that truss members were subjected to higher axial forces in 2D analysis than 3D analysis, which will result to overdesign of the structural members and the attendant high construction cost. There are some variations observed in the axial forces for trusses located at edges of polygon when compared with the trusses located mid-point between two polygonal edges. This observation is quite significant in the sizes of the steel section properties of the members as well as in the fabrication and installation cost.

Downloads

Issue

Vol. 33 No. 3 (2014)

Section

Research papers of General Interest

License

The contents of the articles are the sole opinion of the author(s) and not of NIJOTECH.

NIJOTECH allows open access for distribution of the published articles in any media so long as whole (not part) of articles are distributed.

A copyright and statement of originality documents will need to be filled out clearly and signed prior to publication of an accepted article. The Copyright form can be downloaded from http://nijotech.com/downloads/COPYRIGHT%20FORM.pdf while the Statement of Originality is in http://nijotech.com/downloads/Statement%20of%20Originality.pdf

For articles that were developed from funded research, a clear acknowledgement of such support should be mentioned in the article with relevant references. Authors are expected to provide complete information on the sponsorship and intellectual property rights of the article together with all exceptions.

It is forbidden to publish the same research report in more than one journal.

How to Cite

STRUCTURAL AND ECONOMIC VIABILITY OF 2D/3D FINITE ELEMENT ANALYSIS OF CONICAL ARCHED ROOF TRUSS. (2014). Nigerian Journal of Technology, 33(3), 258-267. https://doi.org/10.4314/njt.333.812