Urban construction has had a positive impact on social and economic development and achieved good results, which needs to be analyzed. Influenced by factors such as sustainable development and ecological construction, not only economic factors but also ecological value are considered in the process of architectural design, and a variety of architectural technologies and materials are applied to design and construction. Although it is meaningful to incorporate green buildings into urban planning, which is helpful to improve the protection ability of urban buildings, there is also a phenomenon of emphasizing design image and ignoring practicality, and the commercial value and ecological value are unbalanced. In view of the present situation of urban architecture and design, we need to think about how to improve the design quality while realizing green planning and construction, and provide more guidance for the development of domestic architecture.
1 analysis of urban green building planning
Through the analysis and summary of relevant academic research materials, it is found that the city pays more attention to greening and ecology in the process of architectural design, and green buildings gradually enter the concept of urban design. This requires relevant researchers to think creatively and break through the current key technologies, so that more outstanding scientific and technological achievements can be popularized in the use of buildings and more energy-saving and environmental-friendly building materials can be developed. In the process of integrating green buildings into urban planning and design, we should not only innovate technology and apply those research results with ecological value, but also innovate building equipment to ensure more reasonable energy consumption and improve the comprehensive utilization rate of resources in urban construction and planning. This can not only reflect the ecological value in the process of urban planning, but also provide more impetus for the sustainable development of the city and the creation of a harmonious society, and realize green and sustainable urban construction and development.
2 the significance of integrating green buildings into urban planning
2. 1 actively improve the traditional urban architecture model
It is of great significance to integrate green buildings into urban planning. First of all, it can actively improve the traditional urban architecture mode and enhance the quality of urban architecture. Thinking about the past urban development, we can find that the rapid construction and development of these cities are based on the high consumption of resources. Green building is the concept of advocating low carbon and environmental protection, which embodies the three characteristics of circular system. First, it can make resources realize a reasonable cycle; Second, it can make the industry get an optimized cycle; Third, spiritual culture can be effectively circulated. The above circular system is similar to the sustainable development advocated in the current social development, and it also reflects the phenomenon of consistent development goals. Therefore, bringing green buildings into the process of urban planning can change the previous building model that has achieved rapid development based on resource consumption. At the same time, green building will better integrate the design concept of low-carbon and environmental protection into urban cultural construction, so that people can get more spiritual education and enjoyment, and make the city realize the coordinated development of economy and civilization construction.
2.2 to achieve the building goals of energy conservation and emission reduction
Guided by the concept of green building in the process of urban design and construction, we can not only actively improve the traditional urban architectural model, but also achieve the architectural goal of energy saving and emission reduction. This is because the main feature of green building is the rational utilization of resources, which is often called energy saving. Green building advocates rational use of natural resources, reducing the use of electric energy and heat energy in the process of construction and design, which can reduce people's living costs in urban life and bring better energy-saving motivation for social development. Although the total domestic resources are relatively large, they are affected by population. In order to achieve long-term development, we must achieve the development goal of energy saving. Green building can make the city make rational use of various resources and reduce resource consumption in the process of planning and design, which meets the needs of current national development and social construction. Therefore, green building can provide more scientific guidance in the process of urban development, reduce the consumption of various resources and energy on the basis of satisfying urban construction, and thus achieve the architectural goal of energy conservation and emission reduction.
3 urban green building planning and design problems
3. 1 Attach importance to design image and ignore practicality.
Although the city has incorporated green buildings into its guiding principles in the planning and design process, there are still many problems that affect the overall architectural effect of the city. First of all, it pays attention to design image and ignores practicality. In the process of designing urban construction, designers pay more attention to how to better display urban functions and how to make the city have certain novelty and attraction in architectural image. However, in the specific design and planning process, the practicability of urban planning is not considered, which restricts the ability of urban construction. For example, in the process of urban construction in some areas, in order to better show the characteristics and customs of the area, there will be some exaggerated architectural shapes, and these modeling designs need to be realized by artificial lighting and mechanical ventilation, which leads to a lot of energy consumption problems.
3.2 The imbalance between commercial value and ecological value.
By analyzing the present situation of urban planning and architectural design, we can find that in the design process of urban green buildings in China, there are not only problems of attaching importance to design image, but also problems of imbalance between commercial value and ecological value. First of all, in the process of planning urban functions, designers mainly consider its commercial and economic value, and do not make rational use of natural systems and ecological resources such as lakes, but only regard them as part of spatial planning. Secondly, some real estate developers will seriously destroy the original ecosystem in order to obtain more economic benefits. If the developer's meeting razes the mountain to the ground, more space resources can be obtained to build buildings on it, which not only wastes natural resources, but also fails to reflect the planning characteristics. Finally, the designer failed to systematically investigate the ecological environment around the building and only used the slogan of ecological green building. They fail to manage the quality of building materials and coordinate the building with the surrounding ecological environment, which will also cause great damage to the environment or pollution to ecological resources.
3.3 Unreasonable use of high-tech, resulting in cost waste.
Green building has a positive guiding role in urban planning and development, but in the specific urban planning process, there is still a phenomenon that unreasonable use of high technology leads to waste of construction costs. This is because designers do not have a correct understanding of green buildings and simply equate green buildings with high-cost planning. Therefore, in the process of urban design and planning, we mainly use those high-tech architectural features and blindly apply various environmental protection technologies in planning, which will not only improve the scientificity of urban architecture, but will affect the rationality of overall planning. For example, solar power generation is a green technology at present, which can reduce people's electricity cost with the help of solar energy and make the city realize green development. However, many cities only incorporate this technology into their urban planning, without scientific analysis of this eco-green technology, which requires an average investment recovery time of more than 80 years. In the process of urban planning and architectural design, if the solar energy technology is used blindly, it will waste the investment cost and affect the effect of urban architectural design.
Four ways to realize green planning and construction in cities and improve design quality
4. 1 Combined with urban development design and planning objectives
In the process of design and construction, guided by the concept of green building, the city must make innovative thinking and breakthrough on the current key technologies and gradually change the old design concepts and methods. By analyzing the present situation of urban planning and architectural design, we can find that there are some problems in the process of urban green building design in China, such as paying attention to design image but ignoring practicality, and the imbalance between commercial value and ecological value, which affects the overall architectural design effect. Therefore, in the process of urban design and architectural planning, designers need to actively define the overall design objectives in combination with urban development planning objectives to ensure the quality of urban planning and design. First of all, designers need to think about the future economic development of the city and the evolution of functional areas, explore the cultural content precipitated in the historical development of the city, and make clear the key points that should be grasped in urban planning and design. This can highlight the humanistic attributes and spiritual characteristics of the city and improve the effect of overall design and interval planning. Secondly, designers need to correctly understand the connotation of green building and take it as the guiding principle of urban functional design and architectural planning. The design scheme should be improved many times, so that urban design can be effectively integrated with the ecosystem and the utilization rate of various resources can be improved.
4.2 Consider planning and design from a comprehensive perspective.
Because green building can not only reflect the ecological value in the process of urban planning, but also provide more power for the sustainable development of the city and the creation of a harmonious society, which is an idea that designers need to master at present. Green building not only allows designers to learn relevant theoretical knowledge, but also requires them to master more professional skills, and also requires them to cultivate higher comprehensive quality through theoretical study and practical exploration. Therefore, in order to improve the design quality when the city realizes green planning and construction, it is necessary for relevant personnel to consider planning and design from a comprehensive perspective. First, designers should master professional theoretical knowledge, combine the specific development of the city, scientifically formulate the goals of urban planning and scientifically design the image of the city. At the same time, designers should grasp the specific direction and trend of urban economic development, imagine its development by integrating various development indicators and combining various design ideas. Secondly, in the process of bringing green buildings into urban planning, designers need to grasp the cultural background of the city and apply various cultural elements to urban design to highlight the humanistic functions of the city. Only in this way can we consider planning and design from the overall perspective, effectively integrate urban economic development, cultural construction and ecological planning, and improve the quality of urban planning and design.
4.3 Reasonable selection of building technology and materials
As mentioned above, in the process of integrating green buildings into urban planning and design, it is necessary not only to innovate technology, but also to innovate construction equipment, and more importantly, to rationally use environmentally friendly building materials in building construction. Only in this way can we ensure more reasonable energy consumption in the process of urban construction and planning, improve the overall utilization rate of resources and enhance the scientific nature of urban planning and architectural design. At the same time, green building can make the city make rational use of various resources in the planning and design process, gradually change the unscientific design concept in the past, reduce resource consumption, and thus realize green urban architecture. Therefore, in the process of improving urban planning and functional area design by using green buildings, it is necessary for staff to choose building technology and materials reasonably. First of all, when choosing building materials, designers should choose various types of building materials under the guidance of national standards, specifically, those green building materials that meet national standards. At the same time, designers need to consider the cost of building materials, use more recyclable building materials and reduce the consumption of building costs. Secondly, architectural design needs to be based on facts and pay attention to the embodiment of building use function. Therefore, designers need to choose environmentally friendly building materials, rather than those harmful to human body, to ensure the scientific and safety of architectural design.
4.4 Overall design based on green building.
Green building integrates the design concept of low-carbon and environmental protection into urban cultural construction, which can reduce the consumption of various resources and energy on the basis of meeting urban construction, and conforms to the environmental protection and energy-saving goals put forward by current social development for urban planning. However, in order to improve the rationality of urban planning and the scientificity of architectural design, designers also need to carry out the overall design based on green buildings. First, analyze the geographical environment and development of the city. In urban planning, designers need to master the soil conditions, meteorological conditions and hydrology of the city, and carry out urban planning and design in combination with specific actual conditions, which can enhance the scientific nature of urban architecture. For example, when planning the green belt, more plants can be used flexibly, and trees can be placed on both sides of the sidewalk to improve the air and shade. Second, reasonably design indoor and outdoor living conditions according to natural conditions. Designers can find the balance point of indoor and outdoor design by combining regional temperature changes, sunshine conditions and air conditions to meet people's needs for sunshine and temperature regulation. For example, designers can adjust the indoor temperature by using curtain walls, and can reduce the power consumption by means of natural ventilation. This can effectively improve the rationality of architectural design, reduce the use of various energy and ecological resources, and finally realize the development concept of green buildings.
According to the above research, it is meaningful to integrate green buildings into urban planning, which can not only actively improve the traditional urban architectural model, but also achieve the architectural goal of energy saving and emission reduction, so that the city can realize the coordinated development of economy and civilization construction. However, in the planning and design of urban green buildings, there are some problems, such as paying attention to the design image but ignoring the practicality, the imbalance between commercial value and ecological value, the unreasonable use of high technology and the waste of cost. This paper holds that in the process of urban design and architectural planning, designers need to combine the planning objectives of urban development design to ensure the quality of urban planning and design. At the same time, designers need to reasonably choose building technology and materials, consider planning and design from a comprehensive perspective, reduce resource consumption, and realize green urban architecture. In addition, in order to improve the rationality of urban planning and the scientificity of architectural design, designers also need to carry out the overall design based on green buildings.
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