Introduction
21st century, in order to deal with the energy crisis , population growth and other problems, green and low-carbon concepts have gradually become popular in the hearts of the people. green building , which aims to effectively improve the efficiency of building resource utilization and reduce the impact of buildings on the environment, has become the focus of attention of the whole world.
Environmentally friendly green buildings are the strategic goal of architectural development in countries around the world. Due to the limitations of economic development level, differences in geographical location and per capita resources, different countries have different definitions of green buildings.
1. The perfect adaptation of BIM and green buildings
BIM provides analysis and management for the sustainable development of green buildings, and has great potential in promoting the development and innovation of green buildings.
1, consistency of time dimension
BIM technology is committed to achieving integrated management at different stages of the entire life cycle; and the development and management of green buildings cover construction, use, demolition, maintenance, etc. building full life cycle . time dimension corresponds to facilitate the combination of the two.
2, complementarity of core functions
The achievement of the sustainable goals of green buildings requires comprehensive and systematic grasp of the complete information of different materials and equipment, and coordinate and optimize within the entire life cycle of project, thereby saving energy and reducing emissions. BIM technology provides it with an overall solution.
3, openness of application platform
Green buildings need to use different software to realize the analysis of the energy consumption, lighting, ventilation of the building, etc., and require the relevant application platforms to be open. The BIM platform is open and allows the import of relevant software data for a series of visual operations, creating conditions for its application in green buildings.
2. Green Building: BIM's stage
Green Building provides BIM with a stage to give full play to its advantages, and BIM provides data and technical support for green buildings.
1, Land Saving and Outdoor Environment
Rationally use BIM technology to simulate and analyze the surrounding environment and building space, and obtain the most reasonable site planning, transportation and logistics organization, building and large-scale equipment layout and other solutions. Through analysis and simulation tools such as sunshine, ventilation, and noise, pollution sources such as light, noise, and water can be effectively optimized and controlled.
2, Energy saving and energy utilization
Import professional building performance analysis software into the BIM model, conduct energy consumption, thermal engineering and other analysis, adjust design parameters based on the analysis results, and achieve energy saving effects.
optimizes the design of the building's shape, orientation, building distance, wall and window ratio, etc. through the BIM model, improves energy utilization and reduces energy consumption.
3. Water saving and water resource utilization
Use virtual construction to avoid pipe network leakage caused by collision or conflict
In a dynamic database, clearly understand the daily water consumption of buildings and find out the causes of water loss in time
uses the BIM model to count rainwater collection data, determine the impact of different landforms and materials on runoff coefficients, make full use of non-traditional water sources
4, material saving and material resources use
Enter material information into the model, and dynamically track the entire process of material from production, out-of-warehousing to use to avoid waste.
uses data statistics and analysis functions to estimate the amount of materials, optimize material allocation
uses the BIM model to analyze and control the performance of the material, making it closer to the green goal.
3. Thinking and suggestion
1. Green transformation project
The green transformation of the built projects is less affected by the national or regional economic conditions and related policies, and has greater market potential.Using BIM technology and the idea of green building for operation and maintenance projects can control project energy consumption, save costs, and gain market competitive advantages.
2, material selection application
BIM technology has a complete and accurate database, recording the properties and energy consumption of building materials. Using BIM to choose recyclable materials can not only save energy, reduce construction waste, but also reduce costs from a long-term perspective. The greatest value of
BIM information is in the lengthy building operation stage. The huge information built by the building during its engineering stage is a valuable resource for full application in the future operation stage. The ideals promoted by the sustainable operation of green building require the building to have a detailed 3D model and information-related mechanism to be used.
Source: Green Building Window, Energy World
