Research on axial compression performance test and bearing capacity calculation method of newly assembled hollow lattice wallboard

IF 2.6 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Frontiers in Materials Pub Date : 2024-08-08 DOI:10.3389/fmats.2024.1424911

Yunlin Liu, Shangwei Huo, Zhixin Wu, Dingguo Yang, Ke Ren, Jianhua Liu, Riguang Wang

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Abstract

With the great development of the construction industry, prefabricated building components have been greatly developed. To study the compressive performance of the new wallboard, the axial compression performance test of six full-scale new lattice wallboards was carried out in this paper. The failure mode, axial pressure-displacement relationship curve, axial compression bearing capacity, and axial pressure-strain relationship of the wallboard were obtained through the experiments. This reveals the influence of the thickness of the concrete surface and the number of ribs on the performance of the wallboard. The test results show that the ultimate bearing capacity of the specimen increases with the increase of the thickness of the concrete surface layer with the same number of ribs. Specimen DW -30 increased by 4% over DW -20 and DW -50 increased by 41.6% over DW -30. The ultimate bearing capacity of the three-ribbed specimens was higher than that of the two-ribbed specimens for the same concrete face thickness, about 1.11 times that of the two-ribbed specimens. The concrete facing thickness and the number of ribs have a restraining effect on the deformation of the wallboard. Additionally, the calculation formula of axial bearing capacity of type latticed wallboard considering the influence of eccentric compression was proposed, which can provide a reference for engineering calculation.

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新型装配式空心格构墙板轴向抗压性能试验及承载力计算方法研究

随着建筑业的飞速发展，预制建筑构件也得到了极大的发展。为了研究新型墙板的抗压性能，本文对六种全尺寸新型格构墙板进行了轴向抗压性能试验。通过试验获得了墙板的破坏模式、轴向压力-位移关系曲线、轴向压缩承载力和轴向压力-应变关系。这揭示了混凝土表面厚度和肋条数量对墙板性能的影响。试验结果表明，在肋条数量相同的情况下，试样的极限承载力随着混凝土表层厚度的增加而增加。试样 DW -30 比 DW -20 增加了 4%，DW -50 比 DW -30 增加了 41.6%。在混凝土面层厚度相同的情况下，三肋试件的极限承载力高于二肋试件，约为二肋试件的 1.11 倍。混凝土面层厚度和肋条数量对墙板变形有抑制作用。此外，还提出了考虑偏心压缩影响的格构式墙板轴向承载力计算公式，可为工程计算提供参考。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Frontiers in Materials Materials Science-Materials Science (miscellaneous)

CiteScore

4.80

自引率

6.20%

发文量

749

审稿时长

12 weeks

期刊介绍： Frontiers in Materials is a high visibility journal publishing rigorously peer-reviewed research across the entire breadth of materials science and engineering. This interdisciplinary open-access journal is at the forefront of disseminating and communicating scientific knowledge and impactful discoveries to researchers across academia and industry, and the public worldwide. Founded upon a research community driven approach, this Journal provides a balanced and comprehensive offering of Specialty Sections, each of which has a dedicated Editorial Board of leading experts in the respective field.