摘要
超高层剪力墙应该具备承载力大、抗震延性好、易于施工等特点。姚攀峰提出了多腔钢管钢筋混凝土剪力墙,为巨型结构的剪力墙提供了一种有效的解决方案,并在天津高银117超高层项目中得到了应用,但是尚缺乏深入的研究。以天津高银117项目中多腔钢管钢筋混凝土剪力墙为基础,通过有限元分析等技术手段,初步探讨了多腔钢管钢筋混凝土剪力墙的力学性能,该剪力墙的受拉、受压承载力强轴抗弯承载力与内置钢板钢筋混凝土剪力墙比较接近,略有提升,延性和防倒塌能力有一定提高;该剪力墙的弱轴抗弯承载力、抗扭承载力较与内置钢板钢筋混凝土剪力墙差异较大,有大幅度提升。结果可进一步推广到其他类型的钢管钢筋混凝土剪力墙。
Super high-rise shear walls have the characteristics of large bearing capacity,good seismic ductility,and easy construction. Yao Panfeng put forward the multi cavity steel tube reinforced concrete shear wall to provide an effective solution for the shear wall of the mega structure,and the shear wall had been applied in Tianjin Gaoyin 117 super high-rise building project,but it still lacked in-depth research. Taking multi cavity steel tube reinforced concrete shear wall in Tianjin Gaoyin 117 project as the example,the finite element analysis method was used to discuss the mechanical properties of multi cavity steel tube reinforced concrete shear wall. The tension bearing capacity,compression bearing capacity and flexural bearing capacity in strong axis are slightly higher than those of the reinforced concrete shear wall with built-in steel plates,and the ductility and the collapse resistant capacity are improved; the flexural bearing capacity in weak and torsion bearing capacity have greatly improved compared with those of the reinforced concrete shear wall with built-in steel plates. The results can be further extended to other types of steel tube reinforced concrete shear walls.
出处
《建筑结构》
CSCD
北大核心
2017年第S2期260-267,共8页
Building Structure
关键词
多腔
钢管
钢筋混凝土
剪力墙力学性能
multi cavity
steel tube
reinforced concrete
mechanical property of shear wall
