In the construction of this project, we will give full play to the role of "science and technology is the primary productive force", actively adopt the company's mature scientific and technological achievements, methods and modern management technology in the construction of the project, and promote the application of new processes, new technologies, new equipment and new materials.
The structural support system of this project adopts a bowl buckle scaffolding system.
The bowl buckle scaffolding system consists of fixed length upright poles and short crossbars. The vertical rod is sleeved with a bowl-shaped movable cover at the height of each step frame, and the short crossbar and the end of the connector are welded with special connectors. When using, insert the short crossbar and the special connector at the end of the connector into the rod bowl-shaped movable cover, and knock the movable cover tightly to complete the shelf erection.
The floor support system of this project adopts advanced quick-release support system.
Its principle is: when the roof concrete is poured for 5 7d, when it reaches about 50% of the design strength, the slab, the wall template and most of the cross braces can be removed, only the column head and the column are retained, and when the concrete reaches the demoulding strength specified in the specification, it is dismantled again.
The concrete wall of this project is intended to adopt the overall large steel formwork system, and the special yin angle, yang angle and other tool formwork are used together, and the screw adjustment system carried by the large formwork itself can be easily realized The accurate positioning of the template and the self-weight removal of the formwork.
The whole large formwork is made of steel, and the formwork system has large rigidity, does not deform in the process of use, and has no mold running phenomenon, which can reduce support, and the formwork support is convenient, and the demoulding is safe, which is conducive to speeding up the construction progress. The concrete surface of the overall large formwork is neat and beautiful after the demoulding is removed, and it can meet the standard of fair-faced concrete.
The application of this technology can achieve the following expected effects:
Wall cross-sectional dimensional deviation 3mm;
Concrete surface flatness deviation 2mm; The height difference at the seam of the formwork is 05mm。
Because this project is a cast-in-situ reinforced concrete structure, in order to ensure the flatness of the lower surface of the horizontal structure, a large piece of bamboo surface template is used as a horizontal board template, bamboo (wood) plywood is made of 18mm thick phenolic resin double-sided laminated board, 50mm 100mm wood square is used as the secondary keel, 100mm 100mm wood square is used as the main keel, and the main keel is supported on the adjustable height. The beam is made of 50mm wooden board as the bottom mold, and the wood plywood is used as the side mold, and the back of the side mold is added with 50mm 100mm wood square for the back flute.
The joints of the formwork are closed with adhesive tape to ensure that the lower part of the cast-in-place slab and the surface of the frame beam are smooth and flat, and the effect of fair-faced concrete can be achieved.
The application of this technology can achieve the following expected effects:
The flatness deviation of the lower surface of the plate is 3mm; The difference in height between the two adjacent plates is lmm.
By adding active admixtures (such as fly ash) to the concrete, the submicrostructure of the concrete can be optimized, and the interfacial strength between the coarse aggregate and the mortar can be improved, which can improve the construction performance of the concrete and improve the strength of the concrete.
By mixing admixtures and micro-expansion materials into concrete, water consumption and concrete shrinkage can be reduced, and concrete strength can be improved. This technology is listed by the Ministry of Construction as one of the 10 key new technologies in the construction industry, and has been widely used in the construction of concrete in China, and in 1990, the "Technical Regulations for the Application of Fly Ash Concrete" GBJL46-90 and "Fly Ash for Cement and Concrete" (GB T1596-91) were issued.
Concrete pumping technology is to use a concrete pump to transport concrete to the working face, and then the concrete is transported into place by the distribution equipment. This construction technology ensures the continuity of concrete pouring, reduces the retention of construction joints, improves the quality of concrete construction, and accelerates the construction speed.
This technology was listed by the Ministry of Construction as one of the 10 key new technologies in the construction industry, and has been widely used in major domestic projects, and in 1991, the national construction method (YJGFL7-91) and the "Technical Regulations for Concrete Pumping Construction" (JGJ TL0-95) were issued.
With the rapid development of information technology, our company attaches great importance to the application of computer technology in engineering projects. In the construction management, the computer is widely used for contracts, plans, technical quality, material procurement and supply, budget and final accounts, finance, labor, equipment management, etc., and the use of computer technology can improve work efficiency and enhance the level of construction management.
Set up a computer management system within the project department to provide liaison and exchange for the information and resource management of engineering construction, realize the standardization of work process and technical management, which is conducive to improving the level of project management and ensuring that the quality of the project reaches the expected goals.