STRUCTURAL ASSESSMENT OF A RC SLAB STRENGTHEND WITH CFRP COMPOSITE USING IN-SITU LOAD TESTING
This paper discusses the in-situ strengthening of reinforced concrete(RC)slabs using externally bonded fibre reinforced composites(FRP).The slabs are part of a full-scale 3 storey building located in in Thailand.The original building(completed in 2015)is currently used as a major processing facility for animal food production.Design verifications based on ACI 318 indicated that the flexural capacity of the original RC slab was insufficient to resist the new superimposed loads from the food production machinery.Conversely,flexural,shear and torsional capacity of the existing RC beam and column sections were sufficient to resist the superimposed loads by up to 150%(1st floor).As part of the retrofitting programme,the concrete slab was strengthened with Carbon FRP(CFRP)laminates using a manual lay-up application.The load capacity and deflection of the FRP-strengthened slab was then assessed according to the ACI 318 load test protocol.Linear finite element analysis(FEA)was also used to compare the theroretical performance of the slab and the in-situ load test.Based on the floor load test results,it was found that the proposed strengthening solution was adequate to sustain the increased load demand imposed by the machinery.
Structural assessment Externally bonded FRP Plate boding Load testing FEA
Thanongsak Imjai Jirawat Phumkesorn Poj Ancharoen Reyes Garcia
Dept.of Civil Engineering,Rajamangala University of Technology Tawan-Ok,Bangkok,Thailand Dept.of Civil Engineering,The University of Sheffield,Sheffield,UK
国际会议
新加坡
英文
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2017-07-19（万方平台首次上网日期，不代表论文的发表时间）