EXPERIMENTAL ASSESSMENT OF A SEISMIC STRENGTHENING SOLUTION FOR STONE MASONRY WALLS USING A WOODEN STRUCTURE
This paper aims at assessing the efficiency of a strengthening procedure using wooden grids applied to stone masonry walls, built and tested in laboratory conditions. The walls were first tested under cyclic horizontal loads to simulate the effects of horizontal seismic action. The experimental response allowed evaluating the cyclic behavior and estimating strength, stiffness, energy dissipation and available ductility of the walls in their original conditions. Afterwards, the walls were retrofitted and further strengthened using an envelope wooden grid to provide external confinement and adopting two different schemes for the connections between the wooden bars. Walls were tested again using the same setup, loading and boundary conditions. Test results are briefly presented, discussed and finally compared in order to assess the effectiveness of the applied strengthening solution. Results are quite encouraging as demonstrated by the significant increase of available ductility and amount of dissipated energy.
Stone masonry wood reinforcement energy dissipation ductility
A. Arêde P. Mendes B. Silva J. Guedes J. Faria A.Costa
Aux. Professor, Dept. of Civil Engineering, Faculty of Engineering of University of Porto, Porto, Po Research Assistant, Dept. of Civil Engineering, Polytechnic Institute of Viseu, Viseu, Portugal MSc, Dept. of Civil Engineering , Faculty of Engineering of University of Porto, Porto, Portugal Full Professor, Dept. of Civil Engineering, University of Aveiro, Aveiro, Portugal
国际会议
14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）