The construction of building formwork must first complete the ten working conditions of building formwork:
1. Divide the construction area and section of the project to be built: reasonably determine the flow section of building formwork construction according to the form, characteristics and site conditions of the project structure, so as to reduce the investment of building formwork, increase the number of turnover, balance the work volume of process engineering (reinforcement, building formwork, concrete process), and ensure the project progress.
2. Design the building formwork according to the engineering structure design drawing to ensure the strength, rigidity and stability.
3. Draw a complete set of architectural formwork design drawings, including: architectural formwork layout plan, assembly drawing, node detail drawing. Determine the layout plan and support layout of architectural formwork. Design the layout plan according to the size and number of beams, plates, columns, etc. according to the general drawing, and mark different models and sizes of single architectural formwork layout plan, vertical and horizontal keel specification, quantity and arrangement size; The form and spacing of column hoops; The model and spacing of the vertical support, lateral support, and horizontal tension connector of the support system.
4. Drawing and checking calculation: on the basis of the layout of the building template plate and the layout of the support system, the strength, rigidity and stability shall be strictly checked and calculated. After passing the check, a complete set of building template design drawings shall be drawn, including: the layout of the building template plate, the block diagram, the assembly drawing, the node detail drawing, and the processing drawing of parts and non-standard splices.
5. After the setting out of axis, building template line, door and window opening line and elevation line, the horizontal control elevation shall be measured to the reserved dowel bar or other transition measuring points, and the pre-inspection procedures shall be completed.
6. In order to prevent the mortar from escaping from the lower opening of the building formwork, the bottom of the cushion of the building formwork shall be padded with a 20mm thick sponge strip before the installation of the building formwork. If the bottom is seriously uneven, the 1:3 cement mortar shall be used along the inner edge of the building formwork first, and the leveling layer shall be accurately leveled according to the given elevation line (the leveling layer shall not extend into the wall). The outer root of the outer wall and the outer column shall be set with the building formwork cushion timber square according to the elevation line, and the leveling mortar shall be horizontally crossed to ensure the accurate elevation and no mortar leakage.
7. Set the positioning benchmark of the building formwork (protective layer), that is, weld the horizontal strut according to the thickness of the protective layer according to the building formwork line at the place 50~80mm from the ground on the main reinforcement of the wall and column to prevent the horizontal displacement of the building formwork.
8. The binding of wall and column reinforcement is completed; The water and electricity pipelines, reserved holes and embedded parts have been installed, the cushion blocks of the reinforcement protective layer have been bound, and the concealed inspection procedures have been completed.
9. For the assembly of building formwork, all panels must be firmly fixed on the keel.
10. For the assembled building formwork, check whether its diagonal, flatness, external dimension and firmness are effective according to the drawing requirements; The release agent shall be painted and placed separately.
The construction of building formwork must first complete the ten working conditions of building formwork:
1. Divide the construction area and section of the project to be built: reasonably determine the flow section of building formwork construction according to the form, characteristics and site conditions of the project structure, so as to reduce the investment of building formwork, increase the number of turnover, balance the work volume of process engineering (reinforcement, building formwork, concrete process), and ensure the project progress.
2. Design the building formwork according to the engineering structure design drawing to ensure the strength, rigidity and stability.
3. Draw a complete set of architectural formwork design drawings, including: architectural formwork layout plan, assembly drawing, node detail drawing. Determine the layout plan and support layout of architectural formwork. Design the layout plan according to the size and number of beams, plates, columns, etc. according to the general drawing, and mark different models and sizes of single architectural formwork layout plan, vertical and horizontal keel specification, quantity and arrangement size; The form and spacing of column hoops; The model and spacing of the vertical support, lateral support, and horizontal tension connector of the support system.
4. Drawing and checking calculation: on the basis of the layout of the building template plate and the layout of the support system, the strength, rigidity and stability shall be strictly checked and calculated. After passing the check, a complete set of building template design drawings shall be drawn, including: the layout of the building template plate, the block diagram, the assembly drawing, the node detail drawing, and the processing drawing of parts and non-standard splices.
5. After the setting out of axis, building template line, door and window opening line and elevation line, the horizontal control elevation shall be measured to the reserved dowel bar or other transition measuring points, and the pre-inspection procedures shall be completed.
6. In order to prevent the mortar from escaping from the lower opening of the building formwork, the bottom of the cushion of the building formwork shall be padded with a 20mm thick sponge strip before the installation of the building formwork. If the bottom is seriously uneven, the 1:3 cement mortar shall be used along the inner edge of the building formwork first, and the leveling layer shall be accurately leveled according to the given elevation line (the leveling layer shall not extend into the wall). The outer root of the outer wall and the outer column shall be set with the building formwork cushion timber square according to the elevation line, and the leveling mortar shall be horizontally crossed to ensure the accurate elevation and no mortar leakage.
7. Set the positioning benchmark of the building formwork (protective layer), that is, weld the horizontal strut according to the thickness of the protective layer according to the building formwork line at the place 50~80mm from the ground on the main reinforcement of the wall and column to prevent the horizontal displacement of the building formwork.
8. The binding of wall and column reinforcement is completed; The water and electricity pipelines, reserved holes and embedded parts have been installed, the cushion blocks of the reinforcement protective layer have been bound, and the concealed inspection procedures have been completed.
9. For the assembly of building formwork, all panels must be firmly fixed on the keel.
10. For the assembled building formwork, check whether its diagonal, flatness, external dimension and firmness are effective according to the drawing requirements; The release agent shall be painted and placed separately.
Ten working conditions for building formwork
Divide the construction area and section of the project to be built: reasonably determine the flow section of building formwork construction according to the form, characteristics and site conditions of the project structure, so as to reduce the investment of building formwork, increase the number of turnover, balance the work volume of process engineering (reinforcement, building formwork, concrete process), and ensure the project progress.
The market demand for building formwork has a bright future
Many customers who invest in building templates will always mention such a question. It is normal for us to care about the demand for building templates in the market. Why? Because it concerns the vital interests of investors, if there is no market, it can not guarantee its own interests.
What factors affect the price of building formwork
The price of materials has risen, and now it is advocated to recycle and cut down trees reasonably, so the price of wood has been high, which directly leads to the rise of the price of building formwork.
Key points of daily maintenance of pine building formwork
With the development of science and technology, pine building formwork is the most widely used building material in the construction industry and an indispensable part of building materials. However, if the storage and daily maintenance of the building formwork are not well done, it may be damaged or even broken during use, causing loss or even danger. Therefore, it is very important to do a good job in the transportation, storage and daily maintenance of building formwork.
How to calculate the usage of building templates
1、Rules for the calculation of the quantities of prefabricated reinforced concrete member formworks 1. The quantities of prefabricated reinforced concrete formworks are calculated in m3 according to the concrete solid volume unless otherwise specified. 2. Small tank is calculated in m3 according to its external volume. 3. Prefabricated pile tip is based on virtual volume (excluding the virtual volume of pile tip)