寒冷地区复合墙板工厂化生产的养护与成品保护技术研究

发布时间：2018-05-07 15:23

本文选题：住宅产业化 + 预制装配式结构　；参考：《沈阳建筑大学》2013年硕士论文

【摘要】：本课题的背景是“十二五”国家科技支撑计划社会发展科技领域项目《保障性住房工业化设计建造关键技术研究与示范研究》,以住宅部品中的复合墙板为研究对象,运用实验、计算的手段解决复合墙板在生产中存在的一些问题,旨在为我国住宅部品的生产和发展提供一定的参考。本文主要对复合墙板工厂化生产的工艺、养护、吊装、质检、修补等多个方面进行深入研究,运用调研、理论推导计算与试验相结合的方式做了以下方面工作： (1)通过对复合墙板生产工艺的研究,总结出偏差产生的原因和偏差允许值；其次对复合墙板所用材料(模具、连接件、预埋件、保温材料、钢筋、混凝土和外饰面材料)的种类、作用、物理性能及加工等进行了系统的研究和总结；最后通过对混凝土试块进行抗压、回弹实验,建立专用回弹曲线,为构件厂评定混凝土质量提供参考依据。 (2)系统地研究了蒸汽养护的原理和工艺,得出了蒸汽养护对高性能混凝土强度、耐久性和体积稳定性的影响规律,根据规律又得出肿胀变形和孔结构是蒸汽养护影响强度、耐久性和体积稳定性的根本原因,并以此为依据提出建议的蒸养制度；最后提出实际生产中蒸汽养护存在的问题,并给出改进的措施。 (3)给出脱模条件和脱模强度测试方法；通过模拟的方法对墙板脱模和吊运的不利工况进行验算,即用SAP2000对四点脱模起吊和两点吊运的施工工况进行数值模拟并验算两种不同吊件的强度和锚固长度。这里面包括总结国内外多个规范对脱模系数和动力系数的取值研究,最后给出最安全的取值；介绍了复合墙板从检查缺陷到给墙板做分类,再到修补的流程以及缺陷修补的方法和修补材料。 (4)研究了复合墙板的存放、质检、打号和运输；重点研究了复合墙板的质量检验(不包括性能检验),分析多个构件厂的质检内容和规范给定的质检内容,结合实际生产中的情况,提出质检记录表。
[Abstract]:The background of this subject is "the 12th Five-Year Plan" National Science and Technology support Plan Social Development Science and Technology Project "Research and demonstration study on the key Technologies of the industrialized Design and Construction of affordable Housing", taking the composite wall board in the housing department as the research object and using experiments. The method of calculation solves some problems existing in the production of composite wallboard, aiming at providing some references for the production and development of residential products in our country. In this paper, the industrial production of composite wall panel technology, maintenance, hoisting, quality inspection, repair and other aspects of in-depth research, using research, theoretical calculation and test of the way to do the following work: 1) through the research on the production technology of composite wall board, the causes of the deviation and the allowable deviation value are summarized. Secondly, the materials used in the composite wall panel (mould, connectors, embedded parts, thermal insulation material, steel bar, etc.) are summarized. The types, functions, physical properties and processing of concrete and exterior finishing materials are systematically studied and summarized. Finally, the special springback curve is established by carrying out compressive and springback experiments on concrete test blocks. It provides a reference for the member factory to evaluate the concrete quality. (2) the principle and technology of steam curing are studied systematically, and the influence law of steam curing on strength, durability and volume stability of high performance concrete is obtained. According to the rule, it is concluded that swelling deformation and pore structure are the influence strength of steam curing. The basic reasons of durability and volume stability are put forward based on which the proposed steam curing system is put forward. Finally the problems existing in steam curing in actual production are put forward and the improvement measures are given. The demoulding conditions and test methods of demoulding strength are given, and the unfavorable working conditions of demoulding and lifting of wall panels are checked and calculated by the method of simulation. In this paper, SAP2000 is used to simulate the construction conditions of four-point lifting and two-point lifting, and to check and calculate the strength and anchoring length of two kinds of lifting parts. This includes summing up the research on demoulding coefficient and dynamic coefficient of many codes at home and abroad, finally giving the safest value, introducing the compound wall board from checking defects to classifying the wall board. To repair the process and defect repair methods and repair materials. (4) studying the storage, quality inspection, marking and transportation of composite wall panels, focusing on the quality inspection of composite wall panels (excluding performance inspection, analyzing the quality inspection contents of multiple component factories and standardizing the given quality inspection contents, Combined with the actual production situation, put forward the quality inspection record table.
【学位授予单位】：沈阳建筑大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU599

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