高强钢组合梁屋盖内力变形控制措施  

CONTROL MEASURES FOR INTERNAL FORCE AND DEFORMATION OF HIGH-STRENGTH STEEL COMPOSITE BEAM ROOF

作　　者：高海涛 GAO Hai-tao(Beijing Housing and Urban Rural Development Science and Technology Promotion Center,101160,Beijing,China)

机构地区：[1]北京市住房和城乡建设科技促进中心,北京101160

出　　处：《建筑技术》2024年第23期2863-2865,共3页Architecture Technology

摘　　要：中关村论坛永久会址建筑限高12 m,主会场跨度47.6 m,为了实现建筑净空要求,工程应用了Q460高强钢组合梁屋盖体系。针对大跨度组合屋盖结构特点,制订了组合梁内力控制措施,根据拟定的支撑卸载顺序和屋面施工顺序,建立了大跨组合梁施工阶段分析模型,模拟组合梁挠度和应力变化情况,施工过程中进行了应力和变形监测,并对计算结果进行了验证。The permanent venue of Zhongguancun Forum has a building height limit of 12m and a main venue span of 47.6m.In order to meet the building clearance requirements,the Q460 high-strength steel composite beam roof system was applied in the project.Based on the characteristics of large-span composite roof structures,internal force control measures for composite beams were formulated.According to the proposed support unloading and roof construction sequence,an analysis model for the construction stage of large-span composite beams was established to simulate the deflection and stress changes of composite beams.Stress and deformation monitoring were carried out during the construction process,and the calculation results were verified.

关 键 词：高强钢组合梁 抗拔不抗剪栓钉 内力变形控制 

分 类 号：TU74[建筑科学—建筑技术科学]