风沙对低矮建筑整体受力影响的风洞试验研究

发布时间：2018-05-28 07:18

  本文选题：风沙 + 低矮建筑　； 参考：《土木工程学报》2017年01期

【摘要】：通过风洞测力试验,研究了不同沙浓度和风速条件下风沙对低矮建筑整体受力的影响。研究结果表明:和净风工况相比,风沙对低矮建筑整体受力有着较大影响。风沙对低矮建筑平均基底剪力系数有着明显的增大作用,且沙浓度越大,增大的越明显。而对于脉动基底剪力系数的影响,除了与沙浓度有关之外,还与指示风速有关。当风速较小时,风沙增大了试验房的脉动效应,而当风速较大时,风沙减小了试验房的脉动效应。
[Abstract]:Through wind tunnel force test, the influence of wind and sand on the whole force of low building is studied under the condition of different sand concentration and wind speed. The results show that: compared with the clean wind condition, the wind sand has a great influence on the overall force of the low building. The wind sand has obvious effect on the average base shear coefficient of low buildings, and the bigger the sand concentration is, the more obvious the increase is. The influence of the shear coefficient of pulsating basement is not only related to the concentration of sand, but also to the indicated wind speed. When the wind speed is small, the wind sand increases the pulsation effect of the test room, but when the wind speed is high, the wind sand decreases the pulsation effect of the test room.
【作者单位】： 湖南大学建筑安全与节能教育部重点实验室;中国科学院太阳能热利用及光伏系统重点实验室;
【基金】：国家自然科学基金(51478179)
【分类号】：TU312.1
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本文编号：1945809