4.9. Application technology of information model construction of assembled concrete structure
4.9. 1, technical content
Building Information Model (bim) technology is used to realize the information exchange and sharing of the design, production, transportation, assembly and operation and maintenance of prefabricated concrete structures, and to realize the integration and coordination of the whole process of prefabricated buildings. BIM technology is applied to the collaborative design of assembled building, structure, electromechanical and decoration to realize the integration of building, structure, electromechanical and decoration; The design of BIM model directly connects production and construction, and realizes the integration of design, production and construction.
4.9.2, technical indicators
The technical indicators of building information model (BIM) mainly include BIM platform technology supporting the whole process, model accuracy in design stage, parameterization degree of various parts, standardization degree of components, CAM technology directly connecting design with factory production system, and information management platform technology of assembled construction site based on BIM and Internet of Things technology. The design of precast concrete structures should meet the relevant requirements of the current national standards, Technical Standard for Assembled Concrete Building GB/T 5 123 1, Technical Specification for Assembled Concrete Structures JJ1and Code for Design of Concrete Structures GB 5001. You can also choose the design atlas of national building standards such as precast concrete shear wall external wall slab 15G365- 1, precast reinforced concrete balcony slab, air conditioning slab, parapet 15G368- 1.
In addition to the above provisions, according to the characteristics of building information model technology, the following key technical contents should be paid attention to in the application of BIM technology in the whole process of prefabricated buildings:
(1) When establishing the model, all kinds of component files with unified standard format should be adopted, and all kinds of component files should be placed in the reasonable position of the model according to the insertion method of fixed specifications.
(2) In the drawing and typesetting stage of prefabricated components, the drawing typesetting, dimensioning, auxiliary line segments and text descriptions should be entered according to the requirements of relevant atlas, and the unified standard format should be adopted, and it should conform to the current national standards "Architectural Drawing Standards" GB/T 50 104 and "Architectural Structure Drawing Standards" GB/T 50 105.
(3) In the production of prefabricated components, the BIM model should be designed by relay, and the technology of "BIM+MES+CAM" should be adopted to realize the automatic steel bar production and component processing in the factory; Using two-dimensional code technology, RFID chip and other reliable identification and management technologies, the factory production management system is constructed to realize traceable whole process quality control.
(4) Using the technology of "BIM+ Internet of Things +GPS", the transportation process of prefabricated components can be traced, and the stacking and hoisting in the construction site can be visually guided, so as to realize the visual construction site information management platform for prefabricated buildings.
4.9.3, scope of application
Assembled shear wall structure: further design, production, transportation and hoisting of precast concrete shear wall external wall panels, precast concrete shear wall composite panels, precast reinforced concrete balcony panels, air conditioning panels and parapets.
Assembled frame structure: the in-depth design, manufacture, transportation and hoisting of prefabricated frame columns, prefabricated frame beams, prefabricated laminated plates, prefabricated outer plates and other components.
Deepening design, production, transportation and hoisting of special-shaped components. Special-shaped components are divided into structural special-shaped components and non-structural special-shaped components, including sloping roofs and balconies. Non-structural special-shaped members include drainage eaves gutter, architectural modeling, etc.
Fourth, the project case
Beijing Samsung Center Commercial Finance Project, Wuhe Vanke Changyang Tiandi Project, Hefu Hubin New City Reconstruction Project, Beijing Tianzhu Vanke Center Project, Chengdu Qingbaijiang Datong Centralized Resettlement Housing Project, Tsinghua Su Shimin Scholar Project, Zhong Jian Strait (Minqing) Green Building Science and Technology Industrial Park Complex Building Project, Beijing Mentougou Affordable Self-occupied Commercial Housing Project, etc.
For more information about project/service/procurement bidding, and to improve the winning rate, please click on the bottom of official website Customer Service for free consultation:/#/? source=bdzd