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Subject = Retrofitting;
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Displaying Results 1 - 2 of 2 on page 1 of 1
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Evaluating the structural capacity of concrete elements through in-situ instrumentation
(2013)
Byrne, David; Goggins, Jamie
Evaluating the structural capacity of concrete elements through in-situ instrumentation
(2013)
Byrne, David; Goggins, Jamie
Abstract:
The difficulty in predicting the long term load capacity of concrete elements is well documented. Time dependent effects such as creep and shrinkage coupled with varying loading events, particularly during construction, can all have an adverse effect on the long term performance of a concrete structure. This paper proposes a method that utilises in-situ instrumentation to predict the load carrying capacity of concrete members. During the construction of the Engineering building at the National University of Ireland, Galway over 260 sensors were embedded in a number of key concrete elements. The sensors are being continually monitored with the use of automatic datalogging equipment and the data is being used to monitor changes in geometric and material properties along with the subsequent time dependent deterioration of the elements. The paper will illustrate how the in-situ data from the demonstrator building can be used to estimate the real time behaviour of the concrete elements a...
http://www.ttp.net/978-3-03785-796-0.html
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Seismic based strengthening of steel and RC telecommunication poles based on fem analysis
(2010)
Kalkan, Erol; Laefer, Debra F.
Seismic based strengthening of steel and RC telecommunication poles based on fem analysis
(2010)
Kalkan, Erol; Laefer, Debra F.
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.
Not applicab...
http://hdl.handle.net/10197/2326
Displaying Results 1 - 2 of 2 on page 1 of 1
Bibtex
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Institution
NUI Galway (1)
University College Dublin (1)
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Peer-reviewed (1)
Unknown (1)
Year
2013 (1)
2010 (1)
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