不同加载方式SIP墙体的抗剪性能
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南京林业大学高层次人才科研启动基金(GXL1023);江苏省自然科学基金(BK20150881);国家林业行业公益性专项(201204701)。


Shear performance of SIP wall under different monotonic loading protocols
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    摘要:

    以3种不同的单向加载方式对以木质OSB覆面的SIP墙体进行侧向加载实验,对比分析3种加载方式下SIP墙体的破坏形式及这3种加载方式对墙体抗剪性能参数的影响,结果表明:3种加载方式得到的墙体的抗剪性能指标有所差异,其中,采用ISO22452加载协议,即对墙体施加持续增加载荷的加载方式所得到的极限承载力最大、极限位移和延性系数居中,分别为46.06 kN、71.83 mm、3.31;采用ASTM E72-05加载时极限承载力居中、极限位移及延性系数最大,分别为:40.66 kN、76.97 mm、4.07。采用ASTM E564-06加载,即对墙体施加阶段载荷并使阶段目标载荷持续作用一段时间的方式,所得到的极限承载力、极限位移及延性系数最小,分别为37.73 kN、54.92 mm、2.91;3种加载方式对墙体破坏形式的影响不大。

    Abstract:

    Three different static loading protocols were used in the lateral loading experiment on SIP wall covering with oriented strand board (OSB), and failure forms and shear performance of the SIP wall were recorded and analysed treated by three loading protocols:ISO 22452, ASTM E72-05 and ASTM E564-06. The results showed that shear performances of the SIP walls under the three loading protocols were different, ultimate bearing capacity and ultimate displacement were the largest one, and the ductility factor was the middle one which loaded by ISO 22452, the value were 46.06kN, 71.83mm, 3.31 respectively; while ultimate bearing capacity was the middle one, ultimate displacement and ductility factor were the largest one which loaded by ASTM E72-05, the datas were 40.66kN, 76.97 mm, 4.07 respectively; ultimate bearing capacity 37.73 kN, ultimate displacement 54.92 mm and ductility factor 2.91 were the smallest treated by ASTM E564-06 among the three loading protocols. Failure forms of the walls under the three loading protocols were similar, there were little influence on failure forms caused by the three loading protocols used in this research.

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王雪花,方露,吴智慧,倪骏,费本华.不同加载方式SIP墙体的抗剪性能[J].土木与环境工程学报(中英文),2016,38(3):41-46. Wang Xuehua, Fang Lu, Wu Zhihui, Ni Jun, Fei Benhua. Shear performance of SIP wall under different monotonic loading protocols[J]. JOURNAL OF CIVIL AND ENVIRONMENTAL ENGINEERING,2016,38(3):41-46.10.11835/j. issn.1674-4764.2016.03.006

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  • 收稿日期:2016-01-08
  • 在线发布日期: 2016-06-27
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