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Size effect of shear contribution of externally bonded frp u- jackets for rc beams.
| Content Provider | CiteSeerX |
|---|---|
| Abstract | It is well known that size effect exists in the shear strength of RC beams. Larger beams have a smaller nominal maximum shear strength. The size effect in RC beams shear strengthened with FRP has not been considered in existing predictive models. In these strengthened beams, the size effect may exist in the shear contributions of both RC beams and FRP. To better understand the shear strengthening and its corresponding size effect, a series of geometrically similar concrete beams strengthened with CFRP U-jackets were designed and tested in this study. The total shear strength of a strengthened RC beam is considered to consist of three components which are the shear contribution of the RC beam, and the direct and indirect shear contributions of the FRP. The direct shear contribution of FRP is obtained in this study with careful experimental measurements. An improved predictive model is proposed, which can obviously remove the size effect on direct FRP shear contribution. More studies are needed to quantify the indirect FRP shear contribution. |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Size Effect Rc Beam Shear Contribution Corresponding Size Effect Total Shear Strength Shear Strengthening Strengthened Rc Beam Improved Predictive Model Direct Shear Contribution Similar Concrete Beam Nominal Maximum Shear Strength Careful Experimental Measurement Direct Frp Shear Contribution Shear Strength Indirect Frp Shear Contribution Strengthened Beam Predictive Model Cfrp U-jackets Larger Beam Indirect Shear Contribution |
| Content Type | Text |