预制装配型钢混凝土T型梁抗弯性能研究

发布时间：2018-01-30 17:20

本文关键词： 型钢混凝土预制装配空心刚度抗弯承载力　出处：《西安建筑科技大学》2015年硕士论文　论文类型：学位论文

【摘要】：型钢混凝土结构(Steel Reinforced Concrete Structure)是指在钢筋混凝土截面内配置型钢所形成的钢-混凝土组合结构形式。根据型钢混凝土结构所具有的强度高、刚度大、抗震性能好、截面尺寸小等优势,本文提出一种新型型钢混凝土组合试件—预制装配型钢混凝土T型梁,而且还提出了一种预制空心的新型预制方式,可以达到降低工程造价的目的同时保证试件的抗弯性能。因此本文提出的新型型钢混凝土试件对于工程实际具有重要的意义。本文开展了针对预制装配型钢混凝土T型梁抗弯性能的试验研究,并根据试验数据对其抗弯性能进行了详细的分析。主要内容包括:开裂荷载、极限承载力、挠度、延性和截面应变分布情况。根据试验结果可以得出结论:预制装配型钢混凝土T型梁符合平截面假定,其抗弯承载力和延性与传统型钢混凝土T型梁相当,且预制空心的形式对梁的抗弯承载力和延性影响不大,虽然空心预制的方式降低了梁的刚度,但是其抗弯性能完全可以达到实际工程的需要。在文章的最后,在传统型钢混凝土梁的刚度计算理论和抗弯承载力计算理论的基础上,本文给出了预制装配型钢混凝土实心预制形式与空心预制形式的刚度计算公式以及在各种工程情况下的抗弯承载力的计算公式,并通过与试验结果的对比验证了公式的有效性。
[Abstract]:Steel Reinforced Concrete structure. It refers to the form of steel-concrete composite structure formed by the configuration of section steel in reinforced concrete section. According to the strength of steel reinforced concrete structure, it has high strength. In this paper, a new type of steel reinforced concrete composite specimen, prefabricated steel reinforced concrete T-shaped beam, and a new prefabricated hollow precast method are proposed. It can reduce the project cost and guarantee the flexural property of the specimen. Therefore, the new type steel reinforced concrete specimen proposed in this paper is of great significance to the engineering practice. Experimental study on bending behavior of soil T-beam. According to the test data, the flexural behavior of the composite is analyzed in detail. The main contents include: cracking load, ultimate bearing capacity, deflection. According to the experimental results, it can be concluded that the prefabricated steel reinforced concrete T-beam accords with the assumption of plane section, and its flexural capacity and ductility are equivalent to those of traditional steel reinforced concrete T-beam. And the form of prefabricated hollow has little effect on the flexural capacity and ductility of the beam. Although the hollow prefabricated method reduces the stiffness of the beam, the bending behavior of the beam can reach the needs of the actual engineering. At the end of the article. Based on the traditional theory of stiffness calculation and flexural bearing capacity of steel reinforced concrete beams. In this paper, the stiffness calculation formulas of solid precast form and hollow precast form of precast steel reinforced concrete and the calculation formula of flexural bearing capacity under various engineering conditions are given. The validity of the formula is verified by comparison with the experimental results.
【学位授予单位】：西安建筑科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU398.9

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