高温下蜂窝组合梁性能试验研究

贾连光; 焦禹铭; 毕然; 张旭

doi:10.13204/j.gyjz202005021

高温下蜂窝组合梁性能试验研究

doi: 10.13204/j.gyjz202005021

沈阳建筑大学土木工程学院, 沈阳 110168

基金项目:

辽宁省自然科学基金项目（2015020597）。

详细信息

作者简介:
贾连光,男,1961年出生,硕士,教授。电子信箱:syjlg@163.com

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- 文章访问数: 70
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- PDF下载量: 6
- 被引次数: 0
出版历程
- 收稿日期: 2019-10-17
- 刊出日期: 2020-07-14

EXPERIMENTAL RESEARCH ON PERFORMANCE OF CASTELLATED COMPOSITE BEAMS AT HIGH TEMPERATURE

School of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, China

摘要

摘要: 为研究蜂窝组合构件抗火性能，对实腹组合梁与蜂窝组合梁的抗火开展试验，研究蜂窝组合梁高温下的性能，对比分析腹板是否开孔、开孔形状等参数对组合梁高温下性能的影响。结果表明：高温下蜂窝组合梁因腹板屈曲发生弯扭失稳而破坏。开孔对梁受火时的温度分布有着很大影响，显著降低了梁的耐火极限，开孔形状对蜂窝组合梁耐火性能影响不大，高温下圆形开孔蜂窝组合梁的稳定性优于正六边形开孔蜂窝组合梁。
- 蜂窝组合梁 /
- 抗火性能 /
- 试验研究 /
- 温度分布
Abstract: In order to study the fire resistance of castellated composite beams, the fire resistance tests of castellated composite beams and composite beams were carried out. The performance of castellated composite beams at high temperature was studied. The effects of web opening and opening shape on the performance of composite beams under high temperature action were compared and analyzed. The results showed that the castellated composite beam was destroyed due to the flexural-torsional buckling of web under high temperature. Openings had a great influence on the temperature distribution of beams under fire, which significantly reduced the fire resistance limit of beams. The shape of openings had little effect on the fire resistance of castellated composite beams. The stability of circular castellated composite beams with openings was better than that of regular hexagonal castellated composite beams at high temperature.
- castellated composite beam /
- fire resistance /
- experimental research /
- temperature distribution

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参考文献(14)

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