预制钢管混凝土边框剪力墙钢筋连接技术研究

发布时间：2018-02-15 12:45

本文关键词： 钢筋套筒连接灌浆预制混凝土结构　出处：《河北联合大学》2014年硕士论文　论文类型：学位论文

【摘要】：预制钢管混凝土边框剪力墙结构是一种新型的与工业化生产相适应的建筑结构体系，符合建筑的节能减排及产业化发展的要求，，该结构整体性能的好坏直接由结构中的水平接缝和竖向接缝的受力性能来决定。水平接缝与竖向接缝的连接好坏，直接影响预制钢管混凝土边框剪力墙的整体性和稳定性，是此结构的薄弱环节。而钢筋的连接技术对其接缝的连接好坏起着至关重要的作用。本文通过对52个不同钢筋连接试件的试验，提出了两种适用于预制钢管混凝土边框剪力墙墙内竖向分布钢筋的钢筋连接技术。本文对9组25个试件进行重复拉伸试验，研究套筒注浆搭接连接方法的可行性。通过对比分析试验数据，得到套筒注浆搭接连接的极限搭接长度与理论搭接长度公式，并证明了套筒注浆搭接连接的安全可靠。对10组27个试件进行高应力反复拉压试验，研究套筒注浆对接连接方法的可行性。通过对比分析试验数据，得到套筒注浆对接连接的极限锚固长度与理论锚固长度公式，并证明了套筒注浆对接连接在强度与刚度方面均性能优良。通过对两种钢筋连接方法进行试验和理论研究，表明这两种钢筋连接方法连接性能优良、施工简单方便、经济环保，符合住宅产业化要求。
[Abstract]:Prefabricated steel concrete frame shear wall structure is a new structural system and industrial production. To meet the energy-saving emission reduction and industrial development of the construction requirements, the overall performance of the structure is directly determined by the mechanical properties of the structure in the horizontal and vertical joints. The quality level of connection joints and vertical joints the direct effect of the precast concrete filled steel tubular frame shear wall integrity and stability, is a weak link of the structure. It plays a vital role in connecting quality of steel bar connection technique on the joint. Based on the 52 different reinforcement connection test, puts forward two kinds of connection technology for precast concrete filled steel tube the frame shear wall in the vertical distribution of steel bars.
The 9 group of 25 specimens of repeated tensile test, the feasibility study of grouting sleeve lap connection method. Through the comparative analysis of test data, get the lap joint grouting sleeve lap length and lap length limit theory formula, and proves that the grouting sleeve lap joint is safe and reliable.
In 10 groups of 27 specimens of high stress and repeated tension compression test, the feasibility study of sleeve grouting butt joint method. Through the comparative analysis of test data, get the butt joint sleeve grouting anchorage length and theoretical limit anchorage length formula, and proves that the butt joint sleeve grouting strength and stiffness are excellent performance.
Through the experimental and theoretical research on the connection methods of the two kinds of steel bars, it is shown that the connection methods of the two kinds of steel bars are excellent in performance, simple and convenient in construction, economical and environmental protection, and meet the requirements of housing industrialization.

【学位授予单位】：河北联合大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU398.9

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