塑料—混凝土地下粮仓中聚丙烯构件连接节点试验研究

发布时间：2018-07-01 08:13

本文选题：地下粮仓 + 防水　；参考：《河南工业大学》2017年硕士论文

【摘要】：为了促进地下粮仓在全国范围内的推广应用,必须解决地下粮仓在防水方面所面临的问题,然而传统的地下工程中的防水做法往往不能起到绝对的防水防渗,这就不能达到粮食储藏的使用要求,因此急需探索一种适用于地下粮仓中的新的防水材料以及与其对应的防水做法,聚丙烯材料凭借着优良的物理力学性能、耐腐蚀和无污染的特性以及工艺简单、价格低廉的特点已经得到了广泛的应用,将其应用于地下粮仓中作为防水板可以增强地下仓的防水性能。本文以聚丙烯塑料板作为防水板置于地下粮仓仓壁的内侧为基础,以聚丙烯塑料板和混凝土板采用聚丙烯塑料栓钉连接为前提,对聚丙烯塑料板和栓钉如何连接和两者连接后的节点强度大小进行研究,并且根据两者连接后节点强度的大小以及各连接节点的特点进行分析,得到每种连接方式适用的实际工程范围,并探究节点受力特性,本文研究内容如下:(1)收集资料,汇总目前地下仓防水工程做法以及聚丙烯材料工程应用现状,确定聚丙烯塑料板作为防水板应用于地下粮仓中的可行性;(2)以聚丙烯塑料板与混凝土采用聚丙烯塑料栓钉连接为前提,归纳并设计出聚丙烯塑料板和栓钉的连接节点形式;(3)对所归纳和设计的聚丙烯塑料板和栓钉的连接节点在受到轴心拉力作用下的强度进行试验测定,并对各节点的强度和特点进行对比分析,进而为实际工程中节点的选取提供参考;(4)对连接节点试验进行综合分析,探究节点受力特性。
[Abstract]:In order to promote the popularization and application of underground granary in the whole country, it is necessary to solve the problem of waterproofing in underground granary. However, the waterproofing method in traditional underground engineering often cannot provide absolute waterproof and impermeability. Therefore, it is urgent to explore a new waterproof material suitable for underground granary and its corresponding waterproof practice. Polypropylene material has excellent physical and mechanical properties. The characteristics of corrosion resistance and non-pollution, simple process and low price have been widely used in underground granary, which can be used as waterproof board to enhance the waterproofing performance of underground silo. In this paper, the polypropylene plastic sheet is used as the waterproof board to be placed inside the wall of the underground granary, and the polypropylene plastic bolt is used to connect the polypropylene plastic board and the concrete board. In this paper, the connection of polypropylene plastic sheet and bolt and the joint strength after connection between the two are studied, and the characteristics of each joint are analyzed according to the strength of the joint after the connection. The practical engineering scope of each connection mode is obtained, and the mechanical characteristics of the joints are explored. The contents of this paper are as follows: (1) collecting the data, summarizing the current waterproof engineering practices of underground bunker and the application status of polypropylene material engineering, The feasibility of using polypropylene plastic sheet as waterproof board in underground granary is determined. (2) on the premise that polypropylene plastic board and concrete are connected with polypropylene plastic bolt, Induces and designs the connection joint form of polypropylene plastic sheet and bolt. (3) the strength of the connection joint of polypropylene plastic sheet and pin is tested under the action of axial tension. And the strength and characteristics of each node are compared and analyzed, which provides a reference for the selection of the joint in the actual engineering. (4) the connection joint test is comprehensively analyzed to explore the mechanical characteristics of the joint.
【学位授予单位】：河南工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU317

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