预制混凝土叠合楼板与钢梁连接的开发及性能研究

发布时间：2018-06-11 19:51

本文选题：装配式钢结构住宅 + 预制混凝土叠合楼板　；参考：《沈阳建筑大学》2014年硕士论文

【摘要】：近年来,随着钢结构技术在我国的迅速发展,特别是装配式钢结构住宅体系,因其安装方便、资源可再生利用等优势,正在作为一种新型产业推动着建筑行业绿色环保可持续的发展,是我国今后实现产业化住宅的研究方向。在钢结构住宅体系中,楼板作为重要的维护体系起着非常重要的作用,楼板与主体结构连接的性能好坏直接影响到整个住宅结构体系的稳定性和安全性。因此,楼板的选择和连接件的选用对整体结构的性能起着至关重要的作用。本文主要介绍了预制混凝土叠合楼板,因其结构刚度大、抗裂性能好、无需支模、施工方便等优势已经成为装配式钢结构住宅体系的优先选择。经工程实践发现,这种楼板形式虽然具有很多优势但在与结构主体连接的部分还存在一些问题。因此解决预制混凝土叠合楼板与钢梁的连接问题成为当今推动钢结构住宅产业的研究重点。经本文对预制混凝土叠合楼板与钢梁连接部分进行的研究表明：抗剪连接件是将预制混凝土叠合楼板与钢梁组合在一起共同工作的关键纽带,对预制混凝土叠合楼板与钢梁连接的整体性能起着决定性的作用,是保证其整体共同受力和协调变形的重要手段。本文提出两种新型连接：分别通过四角弯筋抗剪连接件和T形钢抗剪连接件进行预制混凝土叠合楼板与钢梁的连接。通过对这两种新型连接进行推出试验的研究,并且结合试验结果、荷载-应变曲线、荷载-位移曲线、裂缝检测等数据对推出试件的受力性能进行分析研究。得到结论：两种新型连接均具有较好的延性,与传统的叠合楼板与钢梁的连接进行比较,抗剪强度和抗掀起能力得到提高,试件的整体性能更好。
[Abstract]:In recent years, with the rapid development of steel structure technology in China, especially the prefabricated steel structure housing system, because of its convenient installation, renewable resources and other advantages, As a new type of industry, it is promoting the sustainable development of green environmental protection in the construction industry, and is the research direction of realizing the industrialization residence in our country in the future. In the steel structure housing system, floor slab plays a very important role as an important maintenance system. The performance of the connection between the floor slab and the main structure directly affects the stability and safety of the whole residential structure system. Therefore, the selection of floor and connectors plays an important role in the performance of the whole structure. This paper mainly introduces prefabricated concrete composite floor slabs. Because of its high structural stiffness, good crack resistance, no need of formwork, easy construction and other advantages, prefabricated steel structure residential system has become the preferred choice. Through engineering practice, it is found that although this kind of floor form has many advantages, there are still some problems in the part connected with the main body of the structure. Therefore, solving the connection problem between precast concrete composite slab and steel beam has become the research focus of steel structure residential industry. Through the research on the connection part of precast concrete composite floor slab and steel beam, it is shown that shear connection is the key link for the combination of precast concrete composite floor slab and steel beam. It plays a decisive role in the overall performance of prefabricated concrete composite floor slab and steel beam, and is an important means to ensure the joint force and coordinate deformation of the precast concrete slab. In this paper, two new types of connections are proposed: the precast concrete composite floor slab and the steel beam are connected by the four-corner bending bar shear joint and the T-shaped steel shear connection respectively. Through the research on the push-out test of these two new connections, and combined with the test results, load-strain curve, load-displacement curve, crack detection and other data to analyze and study the mechanical performance of the push-out specimen. It is concluded that the two new connections have better ductility. Compared with the traditional composite floor slab and steel beam, the shear strength and lift resistance are improved, and the overall performance of the specimen is better.
【学位授予单位】：沈阳建筑大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU398.9

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