[1]石峻峰,袁　康.某超限高层建筑结构分析与设计[J].湖北工业大学学报,2023,(5):115-120.
　GU Haoyu,MEI Lifang.Experimental Study on Freeze Thaw Cycles ofLightweight Foamed Mixed Soil[J].,2023,(5):115-120.
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某超限高层建筑结构分析与设计()
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《湖北工业大学学报》[ISSN:1003-4684/CN:42-1752/Z]

卷:
期数:
2023年第5期
页码:
115-120
栏目:
出版日期:
2023-10-30

文章信息/Info

Title:
Experimental Study on Freeze Thaw Cycles ofLightweight Foamed Mixed Soil
文章编号:
1003-4684(2023)05-0115-06
作者:
石峻峰; 袁　康
湖北工业大学土木建筑与环境学院,湖北 武汉 ４３００６８
Author(s):
GU Haoyu;  MEI Lifang
School of Civil Engin.,Architecture and Environment,Hubei Univ. of Tech.,Wuhan 430068,China
关键词:
超限高层建筑; 框剪结构; 有限元; 剪力墙加强
Keywords:
light soil;  freezethaw cycle;  quality loss;  frost heaving rate
分类号:
TU312
文献标志码:
A
摘要:
某超限高层塔楼建筑高度为１９８．１５m,抗震设防烈度为７度,采用部分框支－剪力墙结构,存在扭转不规则的问题,属于高度超限的特别不规则高层建筑.运用 Midas、SAUSAG、ABAQUS等有限元软件对建筑结构进行大震情况下的振型分解反应谱法和弹性时程分析,发现该建筑地震作用量级合理,弹塑性位移减少显著,构件性能水平达到抗震性能目标.针对洞口处楼板和转换层剪力墙损伤问题提出了加强措施.
Abstract:
In order to study the changes in the physical and mechanical properties of lightmixed soil under freezing and thawing cycles, the freezing and thawing cycle tests were carried out on lightmixed soil samples with different EPS particles and cement content. The volume, mass, and unconfined compressive strength of the samples were measured during 0, 1, 3, 6, and 9 freezing and thawing cycles. The experimental results show that with the increase in cement and EPS particle content, the frost heave rate and mass loss rate of light soil will decrease gradually. Through the unconfined compressive strength test, the stressstrain curves of light soil under different freezingthawing cycles were obtained. The experimental results show that the compressive strength of light soil decreases with the increase of freezing and thawing cycles, but the loss rate of the compressive strength of light soil can be effectively delayed with the increase of EPS particle content and cement content. However, this effect is not obvious when the content of EPS particles reaches 2.5%. It can be concluded that when the content of cement is fixed and the content of EPS particles is 2%, it is the critical content. Based on the experimental data, the quantitative relationship between compressive strength and freezing and thawing times is established. Both functions can reflect the deterioration law of compressive strength after the freezing and thawing cycle, which provides reference for the application of light soil in cold regions.

参考文献/References:

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备注/Memo

备注/Memo:
[收稿日期]２０２２- ０５ -１９ [第一作者]石峻峰(１９７４－),男,吉林辽源人,工学博士,湖北工业大学讲师,研究方向为损伤断裂力学,结构工程,BIM 技术,虚拟现实. [通信作者]袁　康(１９９６－),男,湖北武汉人,湖北工业大学硕士研究生,研究方向为桥梁结构,BIM 技术.
更新日期/Last Update: 2023-10-30