At the present time, it is often found that the existing building has beenudchanged in the function or in the number of the floors. In the some cases, theudincreasing number of floors make an additional load to the existing columns. So itudneed to strengthen the existing column to be able to carry the additional load. Oneudmethod to strengthen the existing column is using jacketing method. One of theudjacketing method uses a Carbon Fiber Reinforced Polymer (CFRP).udThis research studies about the effect of CFRP layer on the short columnudsubjected to eccentric loading. Twelve column specimens were made with the size ofud(75 x 75 x 750) mm and 36 cylinder specimenswith the sizw of (150 x 300) mm. Theudcolumns and cylinders made in with variation of the layer CFRP that are one layer,udtwo layer, and three layer. The loading has eccentricity of 50 mm.udThe result shows that the increasing of the compressive strength of concreteudusing one layer, two layer, adn three layer of CFRP compare to the cylinder withoutudCFRP were 9,9%, 81,9%, and 104,3% respectively, while the capacity of a columnudwith one layer, two layer, and three layer of CFRP compare to the specimen withoutudCFRP were 5,4%, 10,71%, and 16,3% respectively. The comparasion of the capacityudof the column using the compressive strength of the Model Teng et al., Richart, andudLam and Teng, shows that the model of Teng et al closed to the experimental result.
展开▼
机译：目前，经常发现现有建筑物的功能或层数已发生变化。在某些情况下，楼层数量的减少/增加给现有的列增加了负担。因此，有必要加强现有的立柱以承受额外的载荷。加强现有色谱柱的一种方法是使用夹套法。其中一种方法是使用碳纤维增强聚合物（CFRP）。 ud这项研究研究了CFRP层在短柱上的作用，并受到偏心载荷的影响。制作了十二个柱状样品，其尺寸为 ud（75 x 75 x 750）mm，并制作了三个圆柱状样品，其尺寸为（150 x 300）mm。用多层CFRP制成的 ududlums和圆柱体是一层， udtwo层和三层。荷载的偏心距为50 mm。 ud结果表明，与不使用 udCFRP的圆筒相比，使用CFRP的一层，两层和三层的混凝土的抗压强度的增加分别为9,9％，81,9分别为％和104,3％，而具有一层，两层和三层CFRP的柱与没有 udCFRP的样品相比，其容量分别为5,4％，10,71％和16,3 ％ 分别。使用Teng等人，Richart和 udLam和Teng的抗压强度比较柱的容量 ud，表明Teng等人的模型接近于实验结果。
展开▼
