钢筋桁架纤维水泥叠合板受弯性能试验研究
引用文献：
安海玉 郑子硕 曹宇 李晓峰 王伟. 钢筋桁架纤维水泥叠合板受弯性能试验研究[J]. 建筑结构，2022，48（16）：74-78，131.
AN Haiyu ZHENG Zishuo CAO Yu LI Xiaofeng WANG Wei. Experimental study on flexural performance of reinforced truss fiber cement composite slabs[J]. Building Structure，2022,48（16）：74-78，131.
摘要：为研究新型钢筋桁架纤维水泥叠合板的受弯性能，对3块不同参数的叠合板试件进行静力加载试验，研究了施工阶段叠合板骨架体系的受力及变形特征，分析了使用阶段不同配筋形式试件的破坏形态、荷载-应变关系、承载力以及挠度变化。试验结果表明，施工阶段叠合板骨架自身刚度良好，可免设或少设临时支撑；使用阶段横向分布筋能够约束混凝土裂缝发展及叠合面粘结滑移，使纤维水泥板和混凝土板共同受力，提高了构件开裂、屈服及极限荷载；纤维水泥板在各阶段能有效承担和传递荷载，提高楼板整体刚度和承载能力；拼缝截面作为钢筋屈曲和混凝土最先开裂的薄弱处，应设置附加钢筋等构造措施。
关键词：钢筋桁架纤维水泥叠合板；配筋形式；受弯性能；混凝土裂缝；粘结滑移
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[3] BRANDT A M.Fiber reinforced cement-based(FRC)composites after over 40 years of development in building and civil engineering[J].Composite Structures,2008,86:3-9.
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[5] 刘轶，童根树，李文斌，等.钢筋桁架叠合板性能试验和设计方法研究[J].混凝土与水泥制品，2006(2):57-60.
[6] 吴方伯，郑伦存，曾垂军.PK预应力混凝土叠合楼盖体系探讨[J].建筑技术开发，2005,32(4):23-24.
[7] 郭乐工，王铁成，郭乐宁，等.冷轧带肋钢筋预应力混凝土叠合板与空心底板受弯承载力相关性分析[J].建筑结构，2011,41(5):82-84.
[8] 冯明远.钢肋预应力混凝土叠合板抗弯性能研究[D].济南：山东大学，2017.
[9] 贾斌，吴体，魏明宇，等.新型自承式钢筋桁架楼承板体系施工阶段力学性能研究[J].建筑钢结构进展，2019,21(2):56-63.
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[11] 人造板及饰面人造板理化性能试验方法：GB/T 17657—2013[S].北京：中国标准出版社，2014.
[12] 建筑结构荷载规范：GB 50009—2012[S].北京：中国建筑工业出版社，2012.
[13] 组合楼板设计与施工规范：CECS 273—2010[S].北京：中国计划出版社，2010.
Experimental study on flexural performance of reinforced truss fiber cement composite slabs
Abstract: In order to study the flexural performance of the new reinforced truss fiber cement composite slab, three composite slab specimens with different parameters were subjected to static loading tests, the mechanical and deformation characteristics of the composite slab frame system were investigated during the construction stage, and the failure pattern, load-strain relationship, bearing capacity and deflection changes of specimens with different reinforcement types were analyzed during the service stage. The test results show that the rigidity of the truss slab frame itself is good during the construction stage, and temporary supports can be omitted or lessened. The transverse distribution of reinforcement during the service stage can restrain the development of concrete cracks and the bonding and slippage of the stacked surface, which makes the fiber cement board and the concrete plate jointly stressed and improves the cracking, yielding and ultimate load of the component. The fiber cement board can effectively bear and transmit the load in each phase and improve the overall rigidity and bearing capacity of the slab. The joint section is a weak point where the reinforcement buckles and the concrete first cracks and it should be reinforced with additional reinforcement and other structural measures.
Keywords: reinforced truss fiber cement composite slab; reinforcement form; flexural performance; concrete crack; bond slip
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