既有公共建筑围护结构绿色改造技术研究

发布时间：2018-10-09 19:57

【摘要】：随着绿色建筑的深入发展,既有建筑绿色化改造已成为人们关注和研究的对象。我国既有公共建筑量大面广,且建筑能耗较大,具有很大的绿色化改造潜力,其中围护结构作为建筑内部、外部空间的分割界面,是绿色化改造的重点。本文研究的外围护结构的绿色化改造主要包括对其美学性能的提升和保温隔热性能的提升。通过大量调研已完成的公共建筑改造案例发现,由于受经验和技术的限制,改造时往往割裂了围护结构的美学性能与保温隔热性能。一是重视保温隔热性能提升的改造,忽略了既有公共建筑的场所感,导致城市文脉的缺失;二是重视建筑形象提升的改造,忽视了其热工性能的提升,没有达到节能减排的目标。针对以上研究不足,本文提出了外围护结构美学性能和保温隔热性能同步提升的绿色化改造设计策略,主要开展了以下几方面的工作:1、通过查阅国内外既有建筑围护结构改造的相关研究文献,并实地调研了我国既有公共建筑围护结构的应用现状,并对其热工性能进行计算,总结提出既有围护结构改造中普遍存在的美学、热工及构造技术等方面的问题,制定了围护结构绿色化改造的研究目标。2、从美学性能提升的角度,通过对国内外大量改造案例的调研,探讨了围护结构美学性能提升改造的影响因素及原则,并提出了基于不同外围护结构饰面类型的美学性能提升的改造设计策略及方法。3、从保温隔热性能提升的角度,针对透明围护结构和不透明围护结构分别从保温和隔热两个层面,探讨了其性能提升的改造设计策略;提出了不同部位、不同构造做法的围护结构的改造技术措施及构造做法;并借助Designbuilder模拟软件,定量分析了不同遮阳形式设置在不同朝向的改造节能效果;此外还探讨了太阳能光伏在围护结构改造中的应用策略,为缓解能源危机、环境污染提供了解决思路。4、基于外围护结构绿色化改造的理论研究,应用于济南玉皇庙镇政府办公楼改造工程实践中。通过实地调研和热工测试,分析其围护结构在美学性能和保温隔热性能存在的问题,对其外围护结构进行绿色化改造方案优化设计,并通过软件模拟分析改造前、后的建筑能耗,其结果表明该办公楼实施外围护结构改造后节能效果显著,对进一步推动山东地区既有公共建筑改造工作,实现节能减排、提升建筑形象起到了积极作用。
[Abstract]:With the further development of green buildings, the green transformation of existing buildings has become the object of attention and research. There are many public buildings in our country, and the building energy consumption is large, which has a great potential for green transformation. The envelope structure, as the partition interface of the building interior and exterior space, is the key point of the green transformation. In this paper, the green transformation of the outer envelope structure mainly includes the improvement of its aesthetic performance and thermal insulation performance. Through a large number of completed cases of public building reconstruction, it is found that due to the limitation of experience and technology, the aesthetic and thermal insulation properties of the enclosure structure are often severed during the transformation. One is to pay attention to the improvement of thermal insulation performance, neglecting the place feeling of the existing public buildings, which leads to the lack of urban context; the other is to attach importance to the transformation of the building image and ignore the improvement of its thermal performance. The target of energy saving and emission reduction has not been reached. In view of the deficiency of the above research, this paper puts forward the green transformation design strategy of the aesthetic performance and thermal insulation performance of the outer enclosure structure. This paper mainly carried out the following work: 1, through consulting the relevant research documents of the existing building envelope structure at home and abroad, and investigating the application status of the existing public building envelope structure in our country, and calculating its thermal performance. In this paper, the problems of aesthetics, thermal engineering and construction technology in the reconstruction of the existing envelope structure are summarized and put forward. The research goal of the green reconstruction of the envelope structure is established, and from the point of view of improving the aesthetic performance, the research goal of the green transformation of the envelope structure is established. Based on the investigation of a large number of cases at home and abroad, this paper discusses the influencing factors and principles of improving the aesthetic performance of the enclosure structure. At the same time, this paper puts forward the retrofit design strategy and method of improving aesthetic performance based on different types of exterior envelope structure. From the point of view of improving thermal insulation performance, the transparent envelope structure and opaque envelope structure are designed from two aspects of heat preservation and heat insulation, respectively. This paper discusses the modification design strategy of improving its performance, puts forward the technical measures and construction methods of the envelope structure with different parts and different construction practices, and makes use of the Designbuilder simulation software. The energy saving effect of different shading forms in different orientation is analyzed quantitatively. In addition, the application strategy of solar photovoltaic in the reconstruction of enclosure structure is also discussed, in order to alleviate the energy crisis, Based on the theoretical research on the green transformation of the outer enclosure structure, the environmental pollution is applied to the renovation project of the government office building in Ju Huangmiao Town, Jinan. Through field investigation and thermal test, this paper analyzes the problems existing in the aesthetic performance and thermal insulation performance of the envelope structure, and optimizes the green modification scheme of the outer envelope structure, and analyzes the problems before the transformation through software simulation. The result shows that the energy saving effect of the building is remarkable, which plays a positive role in promoting the reconstruction of existing public buildings in Shandong area, realizing energy saving and emission reduction, and improving the image of the building.
【学位授予单位】：山东建筑大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU242;TU111.4

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