键齿咬合式全预制楼板受力性能分析

白久林; 刘家成; 冯明富; 杨经纬

doi:10.3724/j.gyjzG25082302

键齿咬合式全预制楼板受力性能分析

doi: 10.3724/j.gyjzG25082302

1. 重庆大学土木工程学院, 重庆 400045;
2. 明阳智慧能源集团股份公司, 广东中山 528400;
3. 贵阳市住房和城乡建设局, 贵阳 550081

基金项目:

国家自然科学基金项目（52278482）；重庆市杰出青年科学基金（CSTB2025NSCQ-JQX0010）。

详细信息

作者简介:
白久林,博士,教授,博士生导师,主要从事结构抗震减震研究。电子信箱:baijiulin@cqu.edu.cn

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出版历程
- 收稿日期: 2025-08-23
- 网络出版日期: 2026-11-06

Analysis of the Mechanical Properties of Fully Prefabricated Floor Slabs with Interlocking Joints

1. School of Civil Engineering, Chongqing University, Chongqing 400045, China;
2. Mingyang Smart Energy Group Co., Ltd., Zhongshan 528400, China;
3. Bureau of Housing and Urban rural Development-Guiyang, Guiyang 550081, China

摘要

摘要: 装配式楼板凭借施工便捷、工业化程度高的优势，在实际工程中应用广泛。当前，装配式楼板主要分为叠合式与全预制式两类，但受运输条件制约，其尺寸通常较小，实际应用时需进行拼接处理。其中，叠合板现场拼接存在湿作业大的问题，而现有全预制楼板的拼接节点构造又较为复杂。针对上述不足，提出一种键齿咬合式全预制楼板结构。通过ABAQUS有限元软件，对该楼板的抗弯性能展开分析，揭示其受力特征与传力路径。研究结果表明：与现浇楼板相比，全预制楼板的承载力虽略有降低，但仍满足规范对于楼板使用阶段的承载与变形要求；且该楼板传力路径清晰，可实现整板双向受力。此外，通过参数化分析，明确了影响全预制楼板性能的关键因素，进一步提出优化建议，为其工程应用提供支撑。
- 全预制楼板 /
- 受力性能 /
- 有限元分析
Abstract: Prefabricated floor systems have been widely utilized in construction due to their advantages of convenient construction and high degree of industrialization. They are primarily categorized into two types： composite floor slabs and fully prefabricated floor slabs. However，transportation constraints typically limit their individual panel sizes，necessitating on-site splicing. Conventional composite floor slabs require significant wet-work for field splicing， while existing joint details for fully prefabricated slabs are often structurally complex.To address these limitations， this paper proposed a fully prefabricated floor structure system featuring an interlocking key-tooth joint design. Through ABAQUS finite element software， the bending performance of the floor slab was analyzed with the aim of elucidating its stress distribution and load-transfer mechanism. The results showed that compared with the cast-in-place floor slabs， the bearing capacity of the fully prefabricated floor slab was slightly reduced， but it still met he requirements of the code for bearing capacity and deformation of the floor slab in the use stage. Furthermore， the floor slab demonstrated a clear and efficient bidirectional load-transfer path. In addition， a parametric analysis was subsequently conducted to identify the key factors affecting the fully precast floor slab’s mechanical properties， thereby providing optimization suggestions for practical engineering application.
- fully prefabricated floor slab /
- mechanical properties /
- finite element analysis

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