严寒地区钢结构农村住宅应用研究

发布时间：2018-06-28 20:12

本文选题：严寒地区 + 钢结构　；参考：《长春工程学院》2017年硕士论文

【摘要】：我国严寒地区传统的农村住宅结构抗震性能差,材料强度较低,施工周期受季节影响严重,不易于工业化、装配化的发展。严寒地区有很大一部分区域属于抗震设防区,在抗震设防区内的农村住宅必须要考虑结构的抗震性能,所以,在严寒地区推广具有较好抗震性能的钢结构农村住宅很有必要;钢结构材料强度高利于严寒地区建筑布置;钢结构农村住宅符合我国农村住宅装配化和绿色建筑的发展方向;现阶段钢材价格较低也非常有利于钢结构在严寒地区农村住宅上的推广。因此,对严寒地区钢结构农村住宅的应用研究非常必要。综合国、内外低层钢结构住宅结构形式的发展进程,结合严寒地区本地化建材,初步确定了两种比较适合做为严寒地区农村住宅结构体系:钢框架体系和冷弯薄壁轻钢龙骨体系。本文选用了一套严寒地区农村住宅建筑设计图作为建筑方案,在此方案的基础之上对拟采用的两套低层钢结构方案进行了线性静力分析,根据工程实际情况、相关工程设计经验、相应的设计规范规定及结构分析结果,进行了结构布置的进一步调整,最后对调整后的两套结构方案进行了结构的可行性和经济性分析,结果表明:调整后的冷弯薄壁轻钢龙骨结构体系荷载传递路径更加清晰,结构构件标准化程度得以提高,综合造价明显低于严寒地区普通农村住宅。所以严寒地区农村住宅宜优先采用冷弯薄壁轻钢龙骨结构体系,并且本文对冷弯薄壁轻钢龙骨结构体系的节点做法进行了设计。此外,当结构构件承受较大荷载时,如果仍然采用普通冷弯薄壁轻钢龙骨结构体系将会导致结构用量增加,造成住宅造价的大幅提高。基于这种情况,本文提出了薄壁钢管混凝土结构体系,通过有限元软件Midas gen对结构内力进行设计分析和经济性分析,证明新型结构方案既能够有效的提高结构承载能力和整体刚度又具有良好的经济性,文章最后在前人的研究基础之上提出了小截面冷弯薄壁轻钢结构半刚性节点做法,此构造做法能够令节点可靠度大幅提高。
[Abstract]:In the cold areas of China, the traditional rural residential structure has poor seismic performance, low material strength, and the construction period is seriously affected by the season. It is not easy to industrialize and assemble. A large part of the cold area belongs to the seismic fortification area. The rural residence in the seismic fortification area must consider the seismic performance of the structure, so it is cold in cold area. It is necessary to extend the steel structure with better seismic performance in the area, and the steel structure material strength is good for the building arrangement in the cold area, and the steel structure rural housing conforms to the development direction of the rural housing assembly and the green building in our country; the low price of steel at this stage is also very beneficial to the steel structure in the rural residence in the cold region. Therefore, it is necessary to study the application of the steel structure in the cold area. The development of the comprehensive country, the development process of the structure form of the inner and outer steel structure of the steel structure, and the localization of the building materials in the cold region, have preliminarily determined two kinds of rural residential structure system which are suitable for the cold area: the steel frame system and the cold bending thin steel light steel keel. In this paper, a set of rural residential building design drawings in severe cold areas is selected as a building scheme. On the basis of this scheme, two sets of low level steel structure schemes are analyzed linearly. According to the actual situation of the project, the relevant engineering design experience, the corresponding set of specifications and structural analysis results, and the structure of the structure. After the further adjustment of the arrangement, the structural feasibility and economic analysis of the adjusted two sets of structural schemes have been carried out. The results show that the load transfer path of the adjusted cold-formed light steel light steel keel structure system is clearer, the standard degree of structural members can be improved, and the comprehensive cost is obviously lower than that of the ordinary rural residence in the cold area. Therefore, the cold bending thin-walled light steel keel structure system should be preferred in the cold area, and the joint method of the cold bending thin-walled light steel structure system is designed in this paper. In addition, when the structural members bear large loads, the structure consumption will be increased if the structure system still adopts the common cold bending thin steel structure system. The cost of housing is greatly improved. Based on this situation, this paper proposes a thin-walled concrete filled steel tube structure system. Through the finite element software Midas gen, the structural internal force is designed and analyzed and the economic analysis is carried out. It is proved that the new structure scheme can not only effectively improve the structural bearing capacity and the overall stiffness, but also have good economy. Finally, on the basis of previous studies, a semi rigid joint method for small section cold bending thin-walled light steel structure is proposed, which can greatly improve the reliability of the joint.
【学位授予单位】：长春工程学院
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU391

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