4 . some suggestions for seismic tectonic measure of shear wall with concealed steel bar truss have been presented . and some advice for seismic design of this new shear wall has been put forward 4 .给出了内藏钢桁架混凝土组合中高剪力墙的抗震构造措施,提出了该新型剪力墙结构的抗震设计建议。
Compared with the usual shear wall , shear wall with concealed steel bar truss have the following advantages : 1 . cracking load , yield load and ultimate load are obviously higher . 2 与普通中高剪力墙相比,内藏钢桁架中高剪力墙具有以下优势: 1 .开裂荷载明显提高,屈服荷载和极限荷载均显著提高。
Principal similarity coefficients of the test model are calculated to sufficient for similarity requirement of resisting to lateral stiffness . the steel truss was made of red copper in the model 模拟地震振动台试验中,模型设计按主要满足抗侧刚度相似要求确定相似关系,模型制作采用紫铜代替钢完成钢桁架的制作。
So it is difficult to design this kind of structure . though elastic finite element is adopted to analyze its seismic mechanism , methods are not sufficient for structural design 目前,学术界和工程界对带高位大跨钢桁架转换层建筑结构的研究尚嫌不足,只是局限于弹性有限元理论计算分析,提出的设计方法有待进一步论证和完善。
2 . based on the studying result , the mechanical models and formulas of bearing capacity and stiffness are established . the results obtained from the formulas and those from experiment are in good agreement 2 .在试验研究的基础上,揭示了建立了内藏钢桁架混凝土组合剪力墙的刚度和承载力简化力学模型与计算公式,计算结果与试验结果符合较好。
3 . based on the studying result , the mechanical models and formulas of bearing capacity and stiffness of mid - rise shear wall with steel truss are established . the results obtained from the formulas and those from experiment are in good agreement 3 .在试验研究的基础上,建立了内藏钢桁架混凝土组合中高剪力墙刚度和承载力简化计算的力学模型与公式,计算结果与试验结果符合较好。
The experimental studies on the seismic behavior of three 1 / 3 scale low - rise shear walls , including a low - rise shear wall with concealed steel frame , a low - rise shear wall with concealed steel truss and a usual one , has been conducted 摘要进行了3个1 / 3缩尺的低剪力墙的抗震性能试验研究,包括1个普通混凝土低剪力墙、 1个内藏钢框架混凝土组合低剪力墙和1个内藏钢桁架混凝土组合低剪力墙。
Members section of the steel truss are designed mainly according to vertical load , which earthquake load can not change . however , changes of members stress should be regarded , such as the steel truss members connecting shearwall 钢桁架转换结构设计主要受竖向荷载控制,地震荷载不改变其主控荷载,但对地震荷载作用下钢桁架构件受力的变化应予以重视,尤其是与竖向构件连接的钢桁架两端构件。
The experimental study on the seismic behavior of six mid - rise shear walls with 1 / 3 scale and shear - span ratio 1 . 85 has been done . the six mid - rise shear walls include a shear wall with steel frame , a shear wall with steel truss , a shear wall with steel frame - steel bar truss , a shear wall with steel bar truss , a shear wall with steel - steel bar truss and a usual one 6个试件包括1个普通混凝土中高剪力墙、 1个内藏钢框架混凝土中高剪力墙、 1个内藏钢筋桁架混凝土中高剪力墙、 1个内藏钢框架-钢筋桁架混凝土中高剪力墙、 1个内藏钢桁架混凝土中高剪力墙及1个内藏钢-钢筋组合桁架混凝土中高剪力墙。
In tall buildings , for frame - shearwall structure with steel truss transfer story with large span , studies on its dynamic characters and seismic performance are performed . with different transfer story location at the structure , the difference analysis about the structures to period and mode , displacement , and shear etc . is performed in detail . and the vertical load effect to the steel truss transfer story with large span is analyzed 对于高层建筑中带大跨度钢桁架转换层的框架?剪力墙结构,分别对不同转换层设置高度下整体结构的动力特性和抗震性能进行了分析,对整体结构的周期和振型、整体结构的位移和层间位移、结构的剪力和层间剪力等方面性能的差异进行了研究;对大跨度钢桁架转换层在竖向地震作用下对其受力的影响进行了研究。