II.

(2) By establishing BIM model, it can be used for the formwork matching of different formwork systems such as wood formwork and aluminum formwork, and count the quantity of materials used, so as to reduce material waste and speed up the formwork matching rate.

At present, the technology has been effectively applied in many assembly projects such as Changsha Vanke charm city 2.1 and Zhonghai Lake runjiayuan phase II, with good results.

Three dimensional and three-dimensional virtual template display and animation video disclosure application legend 1.

However, compared with traditional buildings, the construction process of precast buildings is more complex, the requirements for accurate process control are higher, and the control of cross operation between different types of work is more difficult.

(3) before construction, the three-dimensional model can be used for construction disclosure.

With the promotion of national, provincial and municipal policies, building industrialization has developed rapidly.

The application of BIM Technology in the formwork system of precast buildings can effectively control the key factors of the construction progress of precast projects in advance, strengthen the key construction steps and control measures, systematically improve the construction progress of precast buildings, and promote the guarantee of quality and construction safety.

Through three-dimensional animation video and formwork erection template, the formwork erection method and control points of key nodes can be vividly told to workers.

Application characteristics of BIM Technology in precast building formwork system (1) check the detailed drawing of precast components by establishing BIM model, and focus on checking whether the position of reserved formwork supporting points of precast components is wrong and whether the formwork supporting screws at complex nodes will collide, Whether the embedded points of temporary support of precast components will conflict with the formwork support points, so as to avoid the phenomenon of post chiseling and post patching caused by the conflict of embedded points after the production of precast components.

Postscript at present, The BIM technical team of Zhongtian Construction Group Hunan company uses BIM Technology to conduct three-dimensional modeling of the precast building formwork system, and uses BIM Technology to produce three-dimensional virtual templates and animation, which not only provides a basis for the deepening design of precast components in the joint review stage of drawings, Visual disclosure is also carried out for key processes in the project (node panorama, column node, cast-in-situ beam node, concealed column reinforcement node, interior wall perspective, bay window perspective, node perspective, etc.), which improves the construction quality of precast buildings, reduces the construction cost and reduces the construction period.

Wall column node template display disclosure sweep to view node panorama such as concealed column reinforcement node, interior wall perspective, Bay window perspective and node perspective.

Zhongtian Construction Group Hunan company regularly carries out BIM Technology Exchange Meeting for precast buildings 1-.

Beam column node template formwork display sweep to view node panorama, column node, cast-in-situ beam node diagram and other node panorama legend 2.

PVC Chamfer

Application of BIM Technology in precast building formwork system 1.

During the work process from structural modeling to processing and production to achievement summary, multi software and multi means are used to ensure the smooth progress of the work.

2.

Precast buildings are constructed in the form of on-site assembly of factory precast components, which has the advantages of short construction period and saving resources, and can achieve the same mechanical and seismic performance as cast-in-situ structures.

Many factors lead to that under the current technical conditions, the construction progress of precast buildings is sometimes slower than that of traditional buildings, and the advantages of precast buildings are not fully displayed.