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钢筋混凝土框架柱的变形能力及基于性能的抗震设计方法

, PP. 53-61

Keywords: 框架柱,变形能力,性能设计方程,基于性能的设计方法

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Abstract:

框架柱的变形能力主要取决于轴压比和约束箍筋用量,本文建立了柱塑性铰区配箍特征值λcv、轴压比n及塑性铰极限转动量θpulc之间的函数关系,即λcv-n-θplcu关系式,并与柱试验数据进行了对比,计算公式与试验结果在平均意义上吻合很好。文中推导了柱截面λcv-n-plcu关系式,建立了配箍特征值λcv、轴压比n、柱曲率延性μcφ之间的关系。在本文公式的基础上,讨论了按现行抗震设计规范最小配箍要求的RC框架柱所达到的最大变形能力,同时指出规范的构造要求并不总满足特定的变形要求。文中提出了框架柱的性能设计方程,给出了框架柱在指定性能目标DI下基于性能的抗震设计方法的基本过程。

References

[1]  Paulay T,Priestly M J N.Seismic design of reinforced concrete and masonry buildings[M].John Wiley & Sons,Inc.New York.
[2]  Mander J B,Priestley M J N,Park R.Theoretical stress strain model for confined concrete[J].Journal of Structural Engineering,ASCE,1988,114(8):1804~1826.
[3]  Kowalsky M J,Priestley M J N,Seible F.Shear and flexural behavior of lightweight concrete bridge columns inseismic regions[J].ACI Structural Journal,1999,96(1):136~148.
[4]  Priestley M J N.Brief commentson elastic flexibility of reinforced concrete frames and significance to seismic design[J].Bullet in of the New Zea-land National Society for Earthquake Engineering,1998,31(4):246~259.
[5]  Mander J B,Priestley M J N,Park R.Observed stress strain behavior of confined concrete[J].Journal of Structural Engineering,ASCE,1988,114(8):1827~1849.
[6]  Eberhard M,Parrish M.PEER structural performance database[J/OL].http://nisee.berkeley.edu/spd/,2003.
[7]  Sheikh S A,Khoury S S.Aperform ance-based approach for the design of confining steel in tiedcolumns[J].ACI Structural Journal 1997,94(4):421~431.
[8]  Watson S,Zahn F A,Park R.Confining reinforcement for concrete columns[J].Journal of Structural Engineering,ASCE,1994,120(6):1798~1824.

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