大跨度钢网架结构整体提升施工关键技术及BIM应用研究

发布时间：2018-08-28 08:24

【摘要】：建筑师与结构工程师一直在寻求解决空间整体结构问题的新思路，随着现代世界工业化的发展，对大跨度结构的功能要求也越来越强烈，基于空间网格的一系列优点如载荷分摊、设备安装、坚固性、模数单元组件、支座位置选择有很大的自由度、规则的几何形状和便于安装等。空间网格结构无疑是建筑师和结构工程师们探索开拓这些新结构形式的有效工具。本文介绍了空间网格结构最常用的结构形式：大跨度钢网架结构。随着空间网格结构的发展，其安装施工工艺也逐步成为了人们重点研究的对象，目前，一般的施工方法包括：高空散拼法、整体提升法、整体顶升法、分段吊装法、滑移法等。整体提升法的适用性和灵活性相比较其他施工方法其适用范围更广，是本文重点研究的施工方法。由于大跨度钢网架结构极其复杂，涉及杆件的种类繁多，若能结合建筑信息模型BIM的应用，能大大提高施工效率。BIM由三部分内容组成：BIM具体表现为在三维模型构件属性中能包含尺寸、造价、时间及其他信息等；能够利用BIM技术建立一个包含项目全生命周期各项资料的资源共享平台，为决策、设计、施工、竣工、投产运营过程中的各项决策提供依据；在工程项目运行的不同阶段，各个单位可通过BIM平台实现协同作业。本文首先介绍了整体提升原理及提升系统组成。其次，以广州白云机场某维修机库项目为例，，研究了大跨度钢网架结构在整体提升方案编制阶段、网架拼装阶段、提升施工阶段出现的影响较大的问题及解决措施，有利于以后类似项目参考本文，重点对易出现问题的地方进行严格把握。最后，BIM作为一门新技术，已逐步开始被人们接受和认可，必定会成为替代CAD技术，成为发展趋势。本文利用大跨度钢网架结构项目及建筑信息模型BIM，研究了网架结构以下方面的内容：基于BIM的钢网架结构建模及应用研究；基于BIM的施工技术资料集成研究；基于BIM的三维施工模拟研究；基于BIM的在各个阶段的成本管理研究，为类似结构体系应用BIM技术提供了一定的参考依据。
[Abstract]:Architects and structural engineers have been looking for new ideas to solve the problem of integral space structures. With the development of industrialization in the modern world, the functional requirements of long-span structures are becoming more and more intense. A series of advantages based on spatial grid such as load allocation, equipment installation, firmness, module and digital unit components, support position selection have a great degree of freedom, regular geometry and easy to install and so on. Spatial grid structure is undoubtedly an effective tool for architects and structural engineers to explore and exploit these new structural forms. In this paper, the most commonly used spatial grid structure, long span steel grid structure, is introduced. With the development of space grid structure, the installation and construction technology has gradually become the focus of research. At present, the general construction methods include: high altitude dispersion spelling, integral lifting, subsection hoisting, sliding, etc. Compared with other construction methods, the applicability and flexibility of the whole lifting method is wider, which is the construction method which is studied in this paper. Because the large span steel grid structure is extremely complex and involves many kinds of members, if we can combine the application of building information model BIM, It can greatly improve the construction efficiency. BIM is composed of three parts: BIM can include dimension, cost, time and other information in the attribute of 3D model component. Can use BIM technology to set up a resource sharing platform which contains all the information in the whole life cycle of the project, which can provide the basis for the decision making, design, construction, completion and operation of the project in the different stages of the project operation. Each unit can realize cooperative operation through BIM platform. This paper first introduces the whole lifting principle and the composition of the lifting system. Secondly, taking a maintenance hangar project of Guangzhou Baiyun Airport as an example, this paper studies the problems and solutions of the large span steel grid structure in the stage of overall lifting scheme preparation, the construction stage of grid installation and the stage of hoisting construction. In the future, similar projects refer to this article, focusing on the easy problems to be strictly grasped. Finally, as a new technology, BIM has been gradually accepted and recognized by people, and will certainly become a substitute for CAD technology and become a trend of development. In this paper, the following aspects of grid structure are studied by using long span steel grid structure project and building information model BIM,: modeling and application research of steel grid structure based on BIM, construction technical data integration research based on BIM, and construction technology data integration based on BIM. The research on 3D construction simulation based on BIM and cost management in each stage based on BIM provides a certain reference for the application of BIM technology in similar structure system.
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU758.11;TU17

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