This paper proposed a new lateral joint to connect precast concrete hollow‐core slabs (PCHSs) and increase their structural assembly efficiency. The main sensitive parameters are the longitudinal ribs and the number of proposed joints. Out‐of‐plane bending performance tests were conducted on four PCHSs with lateral joints (PCHS‐LJs) to study the effects of the main sensitive parameters on the mechanical properties and failure modes of the PCHS‐LJs. The test results showed that there is no obvious relative slip in the joints between the precast bottom slab and the upper post‐pouring concrete before PCHS‐LJs reaching the ultimate load. The transverse directions of PCHS‐LJs are the main force bearing directions and the cracks are mainly occurred in the longitudinal direction of the specimens, which is similar to the stress characteristics of one‐way slabs. Moreover, the vertical bearing capacities of PCHS‐LJs are increased when decreasing the number of proposed joints or when adding the longitudinal ribs. For the specimens without the longitudinal ribs, a wide transverse crack appears near the first transverse ribs, whereas the specimens with the longitudinal ribs do not exhibit this phenomenon. Thus, longitudinal ribs should be added to optimize the PCHS‐LJ failure modes. Finally, solid finite element (FE) models of the test specimens were established in MSC. MARC. The analysis results are basically consistent with the experimental results.

中文翻译：

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带有侧缝的全预制混凝土空心板的面外挠曲特性

本文提出了一种新型的横向接头，以连接预制混凝土空心板（PCHS）并提高其结构装配效率。主要敏感参数是纵向肋骨和建议的接头数量。对四个具有侧向接头的PCHS（PCHS-LJ）进行了平面外弯曲性能测试，以研究主要敏感参数对PCHS-LJ的力学性能和破坏模式的影响。测试结果表明，在PCHS-LJ达到极限荷载之前，预制底板与上部后浇筑混凝土之间的接缝没有明显的相对滑动。PCHS-LJs的横向是主要的受力方向，裂纹主要发生在试样的纵向，这类似于单向平板的应力特性。此外，当减少建议的接头数量或添加纵向肋条时，PCHS-LJ的垂直承载力会增加。对于没有纵向肋的试样，在第一横向肋附近出现宽​​的横向裂纹，而具有纵向肋的试样则没有这种现象。因此，应增加纵向肋以优化PCHS-LJ失效模式。最后，在MSC中建立了试样的实体有限元模型。MARC。分析结果与实验结果基本吻合。对于没有纵向肋的试样，在第一横向肋附近出现宽​​的横向裂纹，而具有纵向肋的试样则没有这种现象。因此，应增加纵向肋以优化PCHS-LJ失效模式。最后，在MSC中建立了试样的实体有限元模型。MARC。分析结果与实验结果基本吻合。对于没有纵向肋的试样，在第一横向肋附近出现宽​​的横向裂纹，而具有纵向肋的试样则没有这种现象。因此，应增加纵向肋以优化PCHS-LJ失效模式。最后，在MSC中建立了试样的实体有限元模型。MARC。分析结果与实验结果基本吻合。