自复位梁腹板耗能钢框架节点抗震性能分析
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摘要
提出一种自复位钢框架梁柱节点,该自复位钢框架节点的特点是梁柱接触面能够在地震荷载发生时打开和关闭,梁柱通过槽钢与高强螺栓连接在一起,沿梁长方向设置预应力钢绞线以提供恢复能力。通过Ansys建立类型节点并施加低周往复荷载,模拟该类型节点在地震作用下的运动轨迹,通过对M-θr和骨架曲线的分析得出该框架梁柱节点的抗震能力良好。
A kind of self- centering steel frame beam- column joint is proposed. The characteristics of self- centering steel frame joint is that the interface between beam and column is able to open and close under seismic load,and the beam and column are connected by the channel steel and high strength bolts. Prestressed steel strand along the beam length direction is set to provide resilience.This paper uses Ansys to simulate the low cycle loading,and simulate the type of node trajectory under the action of earthquake motion. It is concluded that the seismic resistance of the frame beam-column joints is good through the analysis of M- θrand skeleton curve and the seismic performance for self- centering steel frame with web energy consumption is worth further study.
A kind of self- centering steel frame beam- column joint is proposed. The characteristics of self- centering steel frame joint is that the interface between beam and column is able to open and close under seismic load,and the beam and column are connected by the channel steel and high strength bolts. Prestressed steel strand along the beam length direction is set to provide resilience.This paper uses Ansys to simulate the low cycle loading,and simulate the type of node trajectory under the action of earthquake motion. It is concluded that the seismic resistance of the frame beam-column joints is good through the analysis of M- θrand skeleton curve and the seismic performance for self- centering steel frame with web energy consumption is worth further study.
引文
[1]GB50011-2010,建筑抗震设计规范[S].
[2]吕西林,陈云,毛苑君.结构抗震设计的新概念体系—可恢复功能结构[J].同济大学学报,2011,39(7):941-948.
[3]郭彤,宋良龙.自定心钢框架抗震性能研究进展[J].地震工程与工程震动,2010,30(5):49-56.
[4]YING CHENG LIN,JAMES RICLES,RICHARD SAUSE.Earthquake simulations on a self-centering steel moment resisting frame with web friction devices[C].The14th World Conference on Earthquake Engineering.October Beijing,2008,12-17.
[5]奚敏.双腹板、顶底角钢半刚性节点的Ansys数值模拟分析[D].合肥:合肥工业大学,2009.
[6]付永强,张小水,胡成.预应力混凝土结构施加预应力的Ansys模拟[J].工程与建设,2008,22(6):784-786.
[7]蒋成良,李启才.钢绞线预应力的改变对自复位钢框架性能影响[J].苏州科技学院学报:工程技术版,2013,26(3):28-31.
[8]蔡小宁,孟少平,孙巍巍.自复位预制框架边节点抗震性能试验研究[J].土木工程学报,2012,45(12):29-37.
[9]周书敬,薄涛,史三元.混合算法在轻钢结构优化设计中的应用[J].河北工程大学学报:自然科学版,2011,28(2):71-74.
[2]吕西林,陈云,毛苑君.结构抗震设计的新概念体系—可恢复功能结构[J].同济大学学报,2011,39(7):941-948.
[3]郭彤,宋良龙.自定心钢框架抗震性能研究进展[J].地震工程与工程震动,2010,30(5):49-56.
[4]YING CHENG LIN,JAMES RICLES,RICHARD SAUSE.Earthquake simulations on a self-centering steel moment resisting frame with web friction devices[C].The14th World Conference on Earthquake Engineering.October Beijing,2008,12-17.
[5]奚敏.双腹板、顶底角钢半刚性节点的Ansys数值模拟分析[D].合肥:合肥工业大学,2009.
[6]付永强,张小水,胡成.预应力混凝土结构施加预应力的Ansys模拟[J].工程与建设,2008,22(6):784-786.
[7]蒋成良,李启才.钢绞线预应力的改变对自复位钢框架性能影响[J].苏州科技学院学报:工程技术版,2013,26(3):28-31.
[8]蔡小宁,孟少平,孙巍巍.自复位预制框架边节点抗震性能试验研究[J].土木工程学报,2012,45(12):29-37.
[9]周书敬,薄涛,史三元.混合算法在轻钢结构优化设计中的应用[J].河北工程大学学报:自然科学版,2011,28(2):71-74.
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