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Seismic based strengthening of steel and RC telecommunication poles based on fem analysis
| Title: | Seismic based strengthening of steel and RC telecommunication poles based on fem analysis | Authors: | Kalkan, Erol Laefer, Debra F. |
Permanent link: | http://hdl.handle.net/10197/2326 | Date: | Dec-2004 | Online since: | 2010-08-09T15:34:30Z | Abstract: | This study describes a numerical projection of pre- and post-retrofitted conditions of telecommunication poles subjected to seismic hazards. The absence of explicit guidelines for the rehabilitation of existing poles motivated the investigation of the effectiveness of steel jack-eting for the retrofitting of self-supporting steel and reinforced concrete (RC) communication poles. Effects of mast flexibility, variable damping on dynamic response, and significance of period on base shear amplification were investigated. The overall effectiveness of retrofitting against base excitation was assessed for RC and steel poles through the application of modal analyses and response spectrum approach based on a set of strong motion accelerograms record-ed during the 1994 Northridge earthquake. Based on a serviceability approach, the analysis of results shows effectiveness of the steel jacketing in increasing load carrying capacity of the poles by enabling stress redistribution. | Funding Details: | Not applicable | Type of material: | Journal Article | Publisher: | Elsevier | Journal: | Engineering Structures Journal | Volume: | 26 | Issue: | 14 | Start page: | 2101 | End page: | 2111 | Copyright (published version): | 2004 Elsevier Ltd | Keywords: | Poles; Finite elements; Retrofitting; Steel jacketing; Response spectrum analysis | Subject LCSH: | Poles (Engineering)--Design and construction Earthquake resistant design Finite element method Spectrum analysis |
DOI: | 10.1016/j.engstruct.2004.07.006 | Other versions: | http://dx.doi.org/10.1016/j.engstruct.2004.07.006 | Language: | en | Status of Item: | Peer reviewed |
| Appears in Collections: | Urban Institute Ireland Research Collection Critical Infrastructure Group Research Collection Civil Engineering Research Collection |
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