超限大跨连体建筑结构应变能阻尼比研究  

RESEARCH ON STRAIN ENERGY DAMPING RATIO OF LONG SPAN CONNECTED BUILDING STRUCTURE BEYOND THE CODE-SPECIFICATION

作　　者：白银霞 梁万波 孙新 BAI Yinxia;LIANG Wanbo;SUN Xin(Liaocheng Taiyue Real Estate Co.,Ltd.,Shandong Liaocheng 252000,China;Shandong Huake Planning Architectural Design Co.,Ltd.,Shandong Liaocheng 252000,China;Liaocheng construction drawing review Co.,Ltd.,Shandong Liaocheng 252000,China)

机构地区：[1]聊城泰岳置业有限公司,山东聊城252000 [2]山东华科规划建筑设计有限公司,山东聊城252000 [3]聊城市建审施工图审查有限公司,山东聊城252000

出　　处：《低温建筑技术》2021年第8期100-102,107,共4页Low Temperature Architecture Technology

摘　　要：超限大跨连体结构的连接体部分通常采用钢桁架结构,而其两侧的塔楼则采用钢筋混凝土框架-剪力墙结构。由于连接体部分与其两侧塔楼采用不同的建筑材料,造成两者的阻尼比取值不同。为了在实际工程中比较其取值不同对计算内力和变形的影响,文中首先从原理上论述了不同阻尼比的计算方法,然后根据实际工程对比了采用5%的阻尼比和应变能阻尼比对结构计算内力和变形的影响。结果表明采用5%的阻尼比计算得到的变形和内力偏小,应采用应变能阻尼比,可为同类工程设计提供参考。The connecting parts of the transfinite long-span joined structures are usually steel trusses,while the towers on both sides are designed as reinforced concrete frame shear wall structure.Due to the different building materials used in the connection part and the towers on both sides,the damping ratios of the two parts are different.In order to compare the influence of different damping ratios on the internal force and deformation of structure in practical engineering,this paper first discussed the calculation methods of different damping ratios in principle,and then compared the influence of using 5%damping ratio and strain energy damping ratio on the internal force and deformation of structure according to the actual engineering.The results showed that the deformation and internal force obtained by using 5%damping ratio are smaller,so the damping ratio of strain energy should be used Damping ratio.The results of this paper could provide reference for similar engineering design.

关 键 词：连体结构 应变能阻尼比 钢桁架 框架-剪力墙 

分 类 号：TU311.2[建筑科学—结构工程]