The Fourth Construction Co.,Ltd of China Construction Eighth Engineering Division
China
The Fourth Construction Co.,Ltd of China Construction Eighth Engineering Division
the Green Building Label three-star and silver level certification of WELL
Based on IFC format for data conversion, the project team combines BIM model with Tekla, ANSYS Fluent, PyroSim, Pathfinder, Vehicle Tracking, DIALux evo, Navisworks, FUZOR and other simulation software for analysis and optimization.
ARCHICAD, Navisworks, Revit, Tekla Structures, Lumion, Fuzor, Enscape, ANSYS Fluent, Pathfinder, PyroSim, Dialux evo, Vehicle Tracking, C8BIM Platform
In order to obtain the silver level of WELL certification and the three-star Green Building Label, the project needs to meet the relevant requirements of the International WELL Building Institute and the Ministry of Housing and Urban-Rural Development of the People's Republic of China through simulation analysis and optimization. And based on IFC format for data conversion, the project combines BIM model with many analysis software for simulation analysis and optimization.
In order to obtain the silver level of WELL certification and the three-star Green Building Label, the project needs to meet the relevant requirements of the International WELL Building Institute and the Ministry of Housing and Urban-Rural Development of the People's Republic of China through simulation analysis and optimization;
With the advantages of EPC, the project optimizes the concrete frame structure into steel frame structure, converts the data based on IFC format, exchanges Revit and Tekla, and finally 24.8% of concrete and 2.49 million of concrete cost are saved, 61 days of construction period and 732,000 of construction cost are cut;
Based on IFC format for data conversion, the project combines BIM model with Tekla, ANSYS Fluent, PyroSim, Pathfinder, Vehicle Tracking, DIALux evo, Navisworks, FUZOR and other analysis software for simulation analysis and optimization.
Qingdao city, Shandong Province, China
Cost: $27,600,000
square metres: 21000
The Qingdao Macao Road Primary School Project is located in the core area of Qingdao city, adjacent to 5A-level tourist attractions, close to Qingdao Municipal Construction Management Bureau, Qingdao Municipal Bureau of Housing and Urban-Rural Development as well as International Conference Center, with a total construction area of 21,000 square meters and the investment amount of 27,600,000 U.S. dollars.
By always taking the category 10 assessment system in v2 version of WELL Standard and category 7 indicator system in green building assessment standard as the direction of its EPC design and BIM construction, The Qingdao Macao Road Primary School Project has obtained three-star green building certification and also certification such as Shandong Province Green Construction Technology, Green Wisdom Construction, Standard Construction Sites, etc., in addition, it has signed silver-level of world-class WELL certification, and will become the first WELL certified school, as well as the first WELL certified primary and secondary school class project in China.
As EPC project, BIM technology intervenes in advance, which participates in design management throughout the process, and actively participates in various review meetings with the design institute to create benefits for the project.
In this project, by combining BIM model with various analysis software, powerful data support were provided for EPC design optimization.
For indoor wind environment optimization, the CFD finite element analysis simulation software ANASYS Fluent was used to optimize the quantity and distribution of indoor air conditioners based on the simulation of better somatosensory wind speed, somatosensory temperature distribution as well as pressure perception, which can reduce the power consumption of the air conditioner by about 150,000 kilowatt hours per year.
For the optimization of outdoor wind environment, the simulation was also carried out through ANASYS Fluent. Considering the problem that the wind force at the seaside greatly affected the activities of teachers and students, tall trees were planted outside the teaching building, and the double-layer greening of trees, shrubs, and grass was added within the school to significantly reduce wind speed in school and somatosensory pressure tend to balance.
For indoor lighting optimization, DIALux evo was used to simulate indoor illuminance, optimizing the arrangement and selection of lamps, making the average illuminance value, uniformity, and power density of the classroom tend to be reasonable, therefore glare is reduced and comfort is improved.
For outdoor sunshine optimization, the classroom lighting was optimized in combination with the sunshine analysis plug-in; the area of the lighting window was increased by about 110m2, which significantly improved the indoor lighting level, lighting coefficient, and natural light intensity, enhanced the radiant heat in Winter, in addition, integrated sunshades was adopted to reduce the radiant heat in Summer by guaranteeing lighting.
Through above optimization, 2 control items and 9 scoring items in the "Green Building Evaluation Standard" are met, as well as 6 prerequisites and 10 optimization conditions in the 4 evaluation systems in the WELL evaluation v2 version are met.
In terms of structural optimization, based on the advantages of EPC management mode, the structure form is changed from concrete frame structure to steel frame structure, and the design is optimized by using Tekla. The main structure adopts steel structure except basement exterior wall and floor slab. The floor slab is a formwork-free floor bearing slab composed of steel bar truss, and steel structure assembly construction and modular prefabricated slab wall construction are adopted, which avoids the disadvantages of serious waste of traditional concrete construction materials, serious pollution of inhalable particulate matters and serious common quality defects, shortens the construction period, reduces the construction difficulty, and improves the construction quality.
For fire evacuation, the BIM model and PyroSim were combined to simulate indoor fire to optimize the width of the evacuation staircase and the area of the smoke exhaust window in the teaching building, meeting the evacuation time requirements in the fire scene and guaranteeing the safety of teachers and students.
In terms of scene layout and optimization, Vehicle Tracking and Pathfinder software are used to simulate the evacuation route and material transportation route at the construction site, so as to optimize the scene layout and material stacking position. According to the simulation results, site management personnel shall strictly control the material stacking position, avoid the blockage of transportation passage and evacuation passage, and ensure the transportation efficiency of construction materials and the evacuation efficiency of construction personnel in site in case of fire accident. The monitoring equipment shall also be set up at the entrance of the site for accurate statistics and timely evacuation.
In terms of electromechanical construction and optimization, the visualization characteristics of BIM model are used to optimize the arrangement of equipment pipelines in the limited space of the building structure, lay out the pipelines in the ceiling in a detailed manner, increase the clear height of the room, improve comfort, ensure the ventilation and lighting, and improve the space quality upon the completion of the project.
To combat COVID-19, the project department holds the spirit of “iron army” to ensure the safety of project personnel and ensure the smooth construction progress of the project. It fights against the epidemic situation by using new equipment such as intelligent AI temperature measuring gate and temperature measuring platform based on real-name system, including basic temperature measuring function, mask monitoring system, real-name system temperature measuring system, intelligent analysis system of temperature measuring data etc., submits information to the data platform in a real time, and updates the epidemic prevention work report on a daily basis.
Based on IFC format for data conversion, the project combines BIM model with Tekla, ANSYS Fluent, PyroSim, Pathfinder, Vehicle Tracking, DIALux evo, Navisworks, FUZOR and other analysis software for simulation analysis and optimization.
