新型自承式钢筋桁架楼承板体系施工阶段力学性能研究

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英文篇名：The Mechanical Behavior of a New Steel-Bar Truss Slab in Construction 作者：贾斌 ; 吴体 ; 魏明宇 ; 李鹏程 英文作者：JIA Bin;WU Ti;WEI Mingyu;LI Pengcheng;Sichuan Institute of Building Research;School of Civil Engineering,Chongqing University; 关键词：钢筋桁架楼承板 ; 施工阶段 ; 可拆卸底模 ; 静力试验 ; 数值模拟 英文关键词：steel-bar truss slab;;construction stage;;removable bottom;;static test;;numerical simulation 中文刊名：JZJZ 英文刊名：Progress in Steel Building Structures 机构：四川省建筑科学研究院有限公司;重庆大学土木工程学院; 出版日期：2019-02-19 17:16 出版单位：建筑钢结构进展 年：2019 期：v.21;No.109 基金：四川省科技计划项目重点研发项目(2019YFS0071) 语种：中文; 页：JZJZ201902007 页数：8 CN：02 ISSN：31-1893/TU 分类号：61-68

摘要

为了适应钢结构住宅建设需要,将普通钢筋桁架楼承板体系改造为可拆卸木模板自承式钢筋桁架楼承板体系,原镀锌钢板底模替换为可拆卸木模板。对该楼承板体系开展静力加载试验,试验结果显示施工阶段新型钢筋桁架楼承板体系的变形及应力均较小,处于线弹性工作状态并满足现行规范要求。基于有限元方法对现阶段自承式钢筋桁架楼承板体系进行了参数化分析,并提出了更加便于施工操作且性能满足相关规范要求的自承式钢筋桁架楼承板体系构造形式。理论分析表明改进后的楼承板体系力学性能更加优良,能够满足楼板施工控制要求。
        In order to meet the needs of steel structure residential construction,the existing conventional steel-bar truss slab system is replaced by a self-supported steel-bar truss slab system with removable bottom.In this new system,a galvanized steel sheet is replaced with a removable wooden formwork.Static loading tests for the self-supported steelbar truss formwork under construction loads are carried out.The results show a linear-elastic mechanical behavior for self-supported steel-bar truss formwork,and the stress and deformation of steel-bar truss slab system is relatively small.A finite element model is used to simulate and analyze the formwork system in construction.The detail of this new type of self-supported steel-bar truss slab system is proposed and is proven to meet the code requirements and is convenient for construction.Theoretical analysis indicates that the improved steel-bar truss slab system has better mechanical behavior,and meets the construction control requirements.

引文

[1]陈安英,完海鹰,孙磊,等.钢筋桁架组合楼板抗弯性能试验研究[J].建筑结构,2015,45(8):59-63,90.DOI:10.19701/j.jzjg.2015.08.012.CHEN Anying,WAN Haiying,SUN Lei,et al.Experimental study on beading behaviour of steel bar truss composite slab[J].Building Structure,2015,45(8):59-63,90.DOI:10.19701/j.jzjg.2015.08.012.(in Chinese)
    [2]中国工程建设标准化协会.组合楼板设计与施工规范:CECS273:2010[S].北京:中国计划出版社,2010.China Association for Engineering Construction Standardization.Code for Composite Slabs Design and Construction:CECS 273:2010[S].Beijing:China Planning Press,2010.(in Chinese)
    [3]童根树,刘书江,李文斌.自承式钢模板系统性能试验和设计方法研究[J].建筑钢结构进展,2005,7(3):8,16-22.TONG Genshu,LIU Shujiang,LI Wenbin.Experimental research on a self-supported floor system[J].Progress in Steel Building Structures,2005,7(3):8,16-22.(in Chinese)
    [4]中华人民共和国住房和城乡建设部.钢筋桁架楼承板:JG/T368-2012[S].北京:中国建筑工业出版社,2012.Ministry of Housing and Urban-Rural Development of the People’s Republic of China.Steel-Bars Truss Deck:JG/T 368-2012[S].Beijing:China Architecture&Building Press,2012.(in Chinese)
    [5]陈骥.钢结构稳定:理论与设计[M].北京:科学出版社,2011.CHEN Ji.Stability of steel structures:theory and design[M].Beijing:Science Press,2011.(in Chinese)
    [6]中华人民共和国建设部.冷弯薄壁型钢结构技术规范:GB50018-2002[S].北京:中国计划出版社,2002.Ministry of Construction of the People’s Republic of China.Technical Code of Cold-Formed Thin-Wall Steel Structures:GB 50018-2002[S].Beijing:China Planning Press,2002.(in Chinese)