预应力灌浆套管连接的结构性能研究
灌浆套管连接最早应用在海洋平台基础部分的连接,其最初目的是减小钢管挠曲并防止钢管腐蚀,但研究表明该连接具有良好的结构受力性能,实际使用过程中通常引入预应力以提高其承载性能。灌浆套管连接作为一种区别于焊接、栓接和铆接的新型连接方式,施工方便、可拆换,轴向荷载下通过三向受压的水泥环受剪传递荷载。本文总结了近40年在海洋平台、风力涡轮机和结构工程中灌浆套管连接的研究成果,结合试验数据对其影响因素进行了讨论,分析了不同构造措施下可能出现的破坏模式,并对不同研究者给出的设计公式进行了介绍。研究结果表明,灌浆套管连接在静力荷载下有较高的承载力和很好的延性;在低周往复荷载作用下滞回环饱满,有良好的耗能能力;...
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| Published in | Jianzhu Gangjiegou Jinzhan Vol. 12; pp. 11 - 18 |
|---|---|
| Main Authors | , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
Editorial Department of Progress in Steel Building Structures, Tongji University
01.01.2010
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1671-9379 |
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| Abstract | 灌浆套管连接最早应用在海洋平台基础部分的连接,其最初目的是减小钢管挠曲并防止钢管腐蚀,但研究表明该连接具有良好的结构受力性能,实际使用过程中通常引入预应力以提高其承载性能。灌浆套管连接作为一种区别于焊接、栓接和铆接的新型连接方式,施工方便、可拆换,轴向荷载下通过三向受压的水泥环受剪传递荷载。本文总结了近40年在海洋平台、风力涡轮机和结构工程中灌浆套管连接的研究成果,结合试验数据对其影响因素进行了讨论,分析了不同构造措施下可能出现的破坏模式,并对不同研究者给出的设计公式进行了介绍。研究结果表明,灌浆套管连接在静力荷载下有较高的承载力和很好的延性;在低周往复荷载作用下滞回环饱满,有良好的耗能能力;在火灾下内外管温差较大,造成预应力损失,但依然能保持良好的延性,火灾下的灌浆套管连接的破坏有利于主体结构温度应力的释放。 |
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| AbstractList | 灌浆套管连接最早应用在海洋平台基础部分的连接,其最初目的是减小钢管挠曲并防止钢管腐蚀,但研究表明该连接具有良好的结构受力性能,实际使用过程中通常引入预应力以提高其承载性能。灌浆套管连接作为一种区别于焊接、栓接和铆接的新型连接方式,施工方便、可拆换,轴向荷载下通过三向受压的水泥环受剪传递荷载。本文总结了近40年在海洋平台、风力涡轮机和结构工程中灌浆套管连接的研究成果,结合试验数据对其影响因素进行了讨论,分析了不同构造措施下可能出现的破坏模式,并对不同研究者给出的设计公式进行了介绍。研究结果表明,灌浆套管连接在静力荷载下有较高的承载力和很好的延性;在低周往复荷载作用下滞回环饱满,有良好的耗能能力;在火灾下内外管温差较大,造成预应力损失,但依然能保持良好的延性,火灾下的灌浆套管连接的破坏有利于主体结构温度应力的释放。 |
| Author | 王震 张洁 蒋首超 |
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| SubjectTerms | 灌浆套管 破坏模式 结构性能 预应力 |
| Title | 预应力灌浆套管连接的结构性能研究 |
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