FRP seismic retrofit of RC square hollow section bridge piers

被引：34
|
作者：
Pavese, A
Bolognini, D
Peloso, S
机构：
[1] Univ Pavia, Dipartimento Meccan Strutturale, I-27100 Pavia, Italy
[2] Euctr European Ctr Training & Res Earthquake Engn, I-27100 Pavia, Italy
来源：
JOURNAL OF EARTHQUAKE ENGINEERING | 2004年 / 8卷
关键词：
hollow sections; bridge piers; FRP; seismic; strengthening; shear strength; lap-splice; under-designed;
D O I：
10.1142/S1363246904001614
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The research work presented in this paper deals with the seismic assessment of hollow bridge piers strengthened with fibre-reinforced polymer (FRP). The scope of the strengthening is to overcome some common deficiencies derived from the use of non-seismic design rules, which can often lead to inadequate response when operating in cyclic loading. The strengthening design was studied by means of a parametric analysis considering different fibres and geometrical parameters applied to typical case studies. Quasi-static cyclic tests were performed on five 1:4 scaled piers designed according to old non-seismic Italian codes and strengthened according to the previous analytical study. Efficiency of FRP strengthening was evaluated by comparing the experimental results with those obtained in a previous experimental research performed on similar non-strengthened specimens. Base shear versus lateral deflection curves, dissipated energy and collapse mechanisms comparison shows the achievable effectiveness once the debonding risk has been overcome.
引用
收藏
页码：225 / 250
页数：26
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