ANALYSIS OF ENGINEERING SCHEMES FOR PARTIALLY PREFABRICATED STEEL REINFORCED CONCRETE BEAMS
-
摘要: 结合实际工程采用部分预制装配型钢混凝土空心梁(HPSRC梁)对大型预应力混凝土叠合梁进行设计方案比选分析。基于试验研究提出了HPSRC梁截面选型计算方法,计算结果表明采用HPSRC梁可以有效减小预应力钢筋混凝土梁截面高度、减轻结构质量、简化现场施工工序。进而选取有限元分析模型对HPSRC梁两阶段施工过程进行模拟分析,其施工、使用两阶段的应力及挠度变化均满足设计要求。Abstract: In combination with the actual project, the design schemes of large-scale prefabricated concrete composite beams were compared and analyzed by using hollow partially precast steel reinforced concrete beams (HPSRC beams). Based on the experimental research, the method of rational selection of the cross section and calculation method for HPSRC beam was proposed. The calculation results showed that the HPSRC beam could effectively reduce the height of the prestressed reinforced concrete beam, reduce the structural weight and simplify the on-site construction process. Furthermore, the finite element analysis model was selected to simulate the two-stage construction process of HPSRC beam,and the stress and deflection of the two-stage construction can both meet the requirement of current standards.
-
[1] 谭立新, 郭朋鑫, 何昌杰, 等.长沙冰雪世界巨型多截面预应力钢筋混凝土梁叠合法施工技术[J].施工技术, 2018, 47(20):36-40. [2] 赵鸿铁.钢与混凝土组合结构[M].北京:科学出版社, 2001. [3] 叶列平, 方鄂华.钢骨混凝土构件的受力性能研究综述[J].土木工程学报, 2000, 33(5):1-12. [4] JOHNSON R P.Composite Structures of Steel and Concrete:Beams, Slabs, Columns, and Frames for Buildings[M].Oxford:Blackwell Publishing, 2004:1-3. [5] YU Y L, YANG Y, XUE Y C, et al.Shear Behavior and Shear Capacity Prediction of Precast Concrete-Encased Steel Beams[J].Steel and Composite Structures, 2020, 36(3):261-272. [6] 杨勇, 薛亦聪, 于云龙, 等.部分预制装配型钢混凝土梁受弯性能试验研究[J].建筑结构学报, 2017, 38(9):46-53. [7] 于云龙.部分预制装配型钢混凝土梁基本性能及设计方法研究[D].西安:西安建筑科技大学, 2017. [8] 过镇海.钢筋混凝土原理[M].北京:清华大学出版社, 2013. [9] 中华人民共和国国家发展和改革委员会.钢骨混凝土结构技术规程:YB 9082-2006[S].北京:冶金工业出版社, 2007. [10] 中华人民共和国住房和城乡建设部.混凝土结构设计规范:GB 50010-2010[S].北京:中国建筑工业出版社, 2010. [11] 中华人民共和国住房和城乡建设部.钢结构设计标准:GB 50017-2017[S].北京:中国建筑工业出版社, 2018.
点击查看大图
计量
- 文章访问数: 93
- HTML全文浏览量: 12
- PDF下载量: 1
- 被引次数: 0