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| Flexural-shear analysis model for reinforced concrete bridge piers |
| Received:February 13, 2012 Revised:June 05, 2012 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201302013 |
| KeyWord:RC bridge piers flexural-shear analysis model The Modified Compression Field Theory(MCFT) fiber element model hysteretic curves |
| Author | Institution |
| 孙治国 |
大连海事大学 道路与桥梁工程研究所,大连 |
| 王东升 |
大连海事大学 道路与桥梁工程研究所,大连 |
| 李宏男 |
大连理工大学 建设工程学部,大连 |
| 杜修力 |
北京工业大学 城市与工程安全减灾省部共建教育部重点试验室,北京 |
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| Abstract: |
| The analysis model for RC bridge piers with flexural-shear interaction was proposed based on the Modified Compression Field Theory (MCFT) and fiber element model.In the analysis model,the shear force-shear displacement relationship was obtained by the MCFT,and implemented in a nonlinear fiber analysis program to simulate the flexure-shear-axial interaction of the bridge piers.The accuracy of the analysis model was verified by comparing with quasi-static test results of 6 circular bridge piers failed in flexural-shear mode.It is found that the yield strength,ultimate strength and elastic shear stiffness of the bridge piers predicted by MCFT are very accurate.The shear cracking is the key influencing factor induced the changing of shear stiffness,while the flexural cracking and yielding of the longitudinal bars has little influence.Compared with test results,the proposed flexural-shear interaction analysis model simulated the hysteretic curves,flexural and shear deformations of the bridge piers well. |
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