Comprehensive performance analysis of green building scheme design?

Compared with traditional architectural design, green building design meets more levels of needs, which makes the starting point of green building investment higher, and it was not favored by investors at first. However, from the perspective of life cycle cost, the economic value and ecological function of green buildings are comprehensively considered, that is to say, the reduced cost and improved ecological function in the process of building use are comprehensively considered. The reason for comprehensive evaluation of green building design scheme is to find a balance between maximizing the ecological function and minimizing the life cycle cost of green building design, and design the building scheme on this premise, so that the designed building can meet the purpose of green building.

Basic criteria for comprehensive evaluation of green building design scheme

The resource utilization efficiency, environmental benefits and social benefits embodied in the concept of green building design can undoubtedly promote the sustainable development of buildings, but we also know that the main needs of green buildings are wider and more hierarchical. Combined with the purpose of comprehensive evaluation of green building design, the unity of economy and applicability makes the main indicators more prominent, and comparability between indicators is the principle that should be followed in evaluation.

Theory and method of comprehensive evaluation of green building design scheme

System engineering theory

The comprehensive evaluation of green building design is a very complicated process. The relationship between evaluation factors at all levels is mainly: horizontal cross and vertical membership. After classifying and layering the evaluation factors, a complete and easy-to-operate index evaluation system is established, and the best comprehensive scheme is selected through certain methods.

Theory of sustainable development

The so-called sustainable development is a development mode that not only meets the needs of contemporary people, but also does not threaten the satisfaction of future people, that is, moderate development. The comprehensive evaluation of green building design pays attention to the diversified needs of buildings, and pays attention to the comprehensive benefits of multiple factors as always to realize the coordinated and sustainable development of people, nature and buildings, which is the embodiment of the core idea of sustainable development theory.

Life cycle cost assessment theory

The main idea of life cycle cost evaluation theory is to regard green building as a life system, in which life cycle is regarded as a stage, in which the evaluation of material input and output is regarded as the technical and economic index of this system. In the green building system, its life cycle cost mainly includes construction investment and maintenance cost. According to the significance of comprehensive evaluation of green building design scheme, the process of comprehensive evaluation is: the establishment of evaluation objectives, the collection and digitization of relevant evaluation elements, index analysis and comprehensive evaluation, conclusions and improvement suggestions. Because there are many objectives in the demand dimension, the multi-factor comprehensive evaluation method is more suitable for the comprehensive evaluation of green building design schemes.

Optimization countermeasures of green building design based on comprehensive performance analysis

Based on the total amount and performance analysis, the optimization countermeasures of green building design can be divided into four stages: decision-making design stage, start-up design stage, expanded preliminary design stage and construction drawing design stage. By comprehensively considering the performance of region, environment and resources, the design of green buildings is guided by evaluation criteria, and the main performance of buildings is analyzed by high-tech software, thus further improving the scientificity and objectivity of green buildings.

Design Optimization of Regional Spatial Organization Mode of Green Building

The architectural design of green building needs to add some related parameters such as geography, meteorology, technology, culture and environment on the basis of traditional architectural design. Relying on the law of natural growth is the optimization principle of the design of regional spatial organization mode of green buildings. Adding regional elements in the process of architectural design pays more attention to people's feelings in green buildings, and design optimization is mainly manifested in: optimizing design technology, visual form, spatial relationship and so on. , and related to the technical level and cultural level of regional architecture. Conduct research, investigation, transformation, etc. So as to control the design mode and optimize the effect of green building. At the same time, the ecosystem of green building is composed of people, geology, atmospheric environment, soil and other elements. By considering the comprehensive performance of green buildings, we can ensure that green buildings can reflect the regional style and value system as a whole, and realize the optimization goal of harmonious coexistence of regional environmental systems based on the changes of geographical environment.

Optimization of Green Building Design Process

"Green Building Evaluation Standard" is the criterion in the process of green building design, and then optimize the design of existing green building processes: first, optimize the design team. Because the personnel who make up the green building design team are very complicated, the green building project design team should assign employees to the design team according to the goal of green building and implement the responsibilities. Second, optimize the decision-making design, set up a special green design team and then carry out the launching ceremony of green building, such as the feasibility analysis of green building, in-depth analysis of on-site technology, equipment, transportation, etc. of green building, which cannot stay on the surface, and must be discussed and analyzed in depth; Third, optimize the preliminary design. The main manifestations of optimizing the preliminary design are: holding a seminar on green building design, stipulating the overall requirements of green building design, carrying out green building design and determining the review index of green building design. Fourthly, the process of optimizing the expansion design is as follows: conducting a seminar on deepening the implementation of green technology, expanding the design of green buildings, reviewing and expanding the green design drawings, and simulating the design drawings (comprehensive building energy consumption, indoor ventilation and lighting conditions); Fifth, the main process of optimizing the construction drawing design is to deepen the green construction drawing design, complete the green building design drawings, strictly review the construction drawings (if there are any parameter changes, simulate proofreading, auditing and countersigning based on the computer), and complete the construction drawings.

Optimization of evaluation index of green building design scheme

At present, the evaluation system of the overall performance of the building environment mainly includes indicators such as water, materials, energy and air quality, but the evaluation system, operation mode, structure and result expression are far from the decision-making mode of green buildings, which is difficult to meet the needs of designers to optimize the design of green buildings. Use Ecotect software when analyzing green building environment. By summarizing, we can get the comprehensive performance evaluation indexes of green buildings, which make the comprehensive evaluation indexes independent of each other, reflect the comprehensive performance of green buildings from different angles, and set the weights of the indexes according to the requirements of green building functions. The main methods that can be used are correlation coefficient method, expert scoring method and other common methods to determine the weight of evaluation indicators. The performance of the scheme is analyzed by Ecotect simulation program, and then the comprehensive results are analyzed by TOPSIS algorithm, so that the obtained evaluation indexes reach the optimal and EcotectTOPSIS decision-making model.

In a word, green building is the general trend, which not only conforms to China's concept of Scientific Outlook on Development and sustainable development, but also conforms to the global people's pursuit of environmental protection. At present, it has become the development trend of domestic construction industry. In order to realize green design, the methods and measures adopted must be reasonable and effective. By analyzing the comprehensive performance indexes of green buildings, we can determine the best evaluation indexes, make the decision-making model of design scheme more accurate, and thus make the design of green buildings more optimized.

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