Comparison and analysis of cost between precast building and traditional cast-in-place building
Among them, the Bishop School Building has a construction area of about 15102.51 square meters, four floors above the ground, and a rigid waterproof roof.
Key words: precast buildings, cast-in-place buildings, construction drawings, cost In recent years, with the further development of the country, various regions have begun to promote precast buildings.
TASHANZHISHI Abstract.
It is understood that the production cost of PC components mainly consists of materials, labor, water, electricity, component molds, equipment amortization, freight and secondary freight, on-site installation costs, etc..
For the other sub items, precast buildings have certain advantages in cost.
At present, in developed cities, precast buildings have been widely promoted, but from the current market reaction, the construction cost of precast buildings is generally higher than that of traditional cast-in-place buildings, which has a certain impact on the further promotion of precast buildings, and also affects the process of industrialization of China’s construction industry.
Taking the main teaching building as an example, this paper analyzes and compares the cost of each division, and puts forward specific methods and measures to reduce the construction cost.
Subitem project cast design cast-in-situ design cast and cast-in-situ square meter differential cost (yuan) square cost (yuan/m2) square cost (yuan) square cost (yuan/m2) 1.
The following table compares and analyzes the difference of civil engineering cost under the two construction methods, See the following table: civil engineering cost comparison between precast and cast-in-situ design of the main teaching building of a project in Nantong Serial number: precast design of divisional works Cast in situ design Fabricated and cast-in-situ square meters Difference cost (yuan) Square cost (yuan/m2) Cost (yuan) Square cost (yuan/m2) 1.
The cost difference between the two construction methods is mainly concentrated in the civil engineering.
Therefore, this paper studies and analyzes several points of cost increase, and puts forward some suggestions on cost saving.
2、 The cost comparison assumes that under the same design standards and quality requirements, the budget costs of precast buildings and traditional cast-in-place buildings are compared and analyzed respectively, See the following table: comparison of the cast and cast-in-situ design costs of the main teaching building of a project in Nantong No.
We can save from the production, transportation and on-site installation of PC components, which is the key to saving the cost of precast buildings.
Compared with the traditional building methods, precast buildings have more economic advantages in the form of economies of scale.
Civil engineering 274818.571819.717802824.011178.8640.92 Decoration engineering 16299004.951079.2216727540.081107.6-28.383 Water supply and drainage engineering 766211.6350.73803453.5353.2-2.474 Strong electricity engineering 2368709.85156.842454610.95162.53-5.695 Fire engineering 631446.8241.81735039.1648.67-6.86 Total 47547291.823148.338523482.512550.8-597.5 From the above table, it can be seen that the same main teaching building, The cost per square meter of precast buildings is 597.5 yuan higher than that of traditional cast-in-place buildings.
Therefore, it is clear how to reduce the cost of precast buildings, It is to study and analyze the processing and installation of PC components, and take measures to save costs.
1、 Project overview This project is a project in Nantong.
Pile foundation works 17888.051.1816798.11.110.072 Masonry works 1146580.7375.921222685.881.23-5.313 Reinforced concrete works 6254656.0514.157702368.7510-95.85 PC components and installation 12680523.55839.6300839.634 Metal structure works 143850.659.52150681.229.98-0.465 Door and window works 1570579.13103.991712368.42113.38-9.396 Roof and waterproof works 1338055.288.61485463.398.36-9.767 Measures and other works 4329785.13286.7508338.4364.73-7 8.03 A total of 274811918.571819.717802824.011178.8640.9 can be seen from the analysis of the data in the above table: in the comparison of the actual cost of the precast building project, it is only because the processing and installation of PC components has generated higher costs, which has widened the cost difference with cast-in-situ buildings.
The total construction area of the project is about 40000 square meters, and the precast construction method is adopted.
Compared with the cost of traditional buildings, precast buildings increase the cost of the production, transportation and on-site installation of PC components.
