(1 华中科技大学土木与水利工程学院, 武汉 430074; 2 清华大学土木工程系, 北京 100084;3 江苏科迪建设工程质量检测有限公司, 南京 211124; 4 中国建筑第八工程局有限公司总承包公司,上海 200135)

摘要: 为研究江苏园博园未来花园有机玻璃面板承载性能,设计了一个有机玻璃缩尺模型,并对该模型进行了长期试验和短期试验,以考察该缩尺模型在长期荷载和短期荷载作用下的受力性能及破坏模式. 结果表明,在长期荷载作用下,缩尺模型的蠕变现象并不明显;在短期荷载作用下,该模型的极限承载力达 17kN,并表现为脆性破坏;模型破坏时,试验测点处最大应力约 6. 9MPa,测点最大位移为 104mm,说明该缩尺模型承载力较高,结构安全可靠.

关键词: 江苏园博园未来花园; 有机玻璃; 缩尺模型; 长期加载; 短期加载; 蠕变; 极限承载力

中图分类号:TU317 文献标志码:A 文章编号:1002-848X(2023)08-0023-06

DOI:10. 19701 / j. jzjg. ZJ230002

Experimental study on load-bearing capacity of scaled acrylic roof model of Future Garden

HUANG Ming1, WANG Zongyi1, WANG Yuanqing2, XIE Jun3, SUN Xiaoyang4

(1 School of Civil and Hydraulic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;2 School of Civil Engineering, Tsinghua University, Beijing 100084, China; 3 Jiangsu Kedi Construction EngineeringQuality Inspection Co. , Ltd. , Nanjing 211124, China; 4 General Contract Engineering Company, China ConstructionEighth Engineering Division Co. , Ltd. , Shanghai 200135, China)

Abstract: In order to study the load-bearing capacity of the acrylic roof of Jiangsu Garden EXPO Park Future Garden, ascaled acrylic roof model was designed, and the long-term and short-term tests were conducted to investigate the mechanicalperformances and failure modes of the scaled model under long-term and short-term loads. The results show that the creepphenomenon of the scaled model was not obvious under long-term load. Under in the short-term load,the ultimate bearingcapacity of the model was 17kN, and the failure mode was brittle. When the model failed, the maximum stress at themeasuring point was approximately 6. 9MPa and the maximum displacement of the measuring point was 104mm which showthat the scaled model possesses a high load-bearing capacity, and the structure is safe and reliable.

Keywords:Jiangsu Garden EXPO Park Future Garden; acrylic; scaled model; long-term load; short-term load; creep;ultimate bearing capacity

∗国家自然科学基金(52208169),住房与城乡建设部研究开发项目“有机玻璃在建筑与结构领域的应用技术研究”(K20200452).

第一作者:黄明,硕士研究生,主要从事新材料结构研究,Email: huangming@ hust. edu. cn.

[引用本文] 黄明,王综轶,王元清,等. 未来花园有机玻璃面板缩尺模型承载性能试验研究[J]. 建筑结构,2023,53(8):23-28. HUANG Ming,WANG Zongyi,WANG Yuanqing, et al. Experimental study on load-bearing capacity ofscaled acrylic roof model of Future Garden[J]. Building Structure,2023,53(8):23-28.