Construction method for supporting template at construction joint of frame structure

Abstract

The invention relates to a construction method for supporting templates in the building field, particularly relating to a construction method for supporting the templates at construction joints of a frame structure. The construction method comprises the following steps: top die sticks are arranged on components at two sides of the construction joints; a back arris is made of battens; the back arris is arranged in a through-length manner along a longitudinal direction of the component; the templates at the construction joints are supported at two sides of the back arris and arranged in the construction joints; the back arris and the templates arranged at the two sides of the back arris are connected with connecting pieces and are connected into a whole through the connecting pieces; then holes are drilled at specific positions of the templates at the construction joints; and split bolts are penetrated into the drilling holes to oppositely pull the templates in the construction joints and the templates at outer sides of the components, and additionally, the top die stick is supported in the components so that the templates are effectively fixed; concretes of the components at the two sides of the construction joints are poured at intervals; and at last, the back arris and the templates are dismantled. By using the method, section sizes of the concretes after pouring moulding on the two side structures of the construction joints, protective layer thicknesses of the components and pouring quality of the component concretes can be effectively ensured, thereby facilitating construction and operation.

Description

Technical field: [0001] The invention relates to a construction method for supporting a formwork in the construction field, in particular to a construction method for supporting a formwork at a construction joint of a frame structure. Background technique: [0002] At present, in order to ensure structural integrity and structural safety, most of the frame structures with a large area generally adopt the construction measures of adding construction joints within a certain length of the structure. The traditional construction method generally adopts the construction method of filling the construction joints with polystyrene boards. Although this method is convenient for construction, it is only necessary to fill the polystyrene board in the construction joints of double columns or double beams before closing the formwork. But this method has the following defects: [0003] 1. It is not easy for the polystyrene board to have the same size as the double column or double beam, ...

AI Technical Summary

Problems solved by technology

It is very troublesome and time-consuming to assemble small polystyrene boards with large ones;

[0004] 2. The thickness of the polystyrene board is small, and the width of the construction joint is larger than that of the polystyrene board. The structural steel skeleton on both sides cannot squeeze the polystyrene board tightly, and it cannot be fixed even if the pull bolts pass through the polystyrene board.

[0005] 3. It is very easy to damage the polystyrene board during construction, and many particles will fall when threading the pull bolts, which is not easy to clean and slag inclusion occurs

[0006] 4. In order to ensure the quality of construction, when pouring concrete, the structural concrete on both sides of the construction joint must be poured at the same time and the construction process must be strictly controlled. Otherwise, due to the deviation of the polystyrene board, the cross-section of the post-cast concrete components will be small, and the steel protection layer cannot meet the requirements. Situation required

[0007] 5. If there are multiple polystyrene boards filled, the polystyrene boards will be squeezed, and the concrete members poured later will have local necking; if the construction is not careful, the first poured parts will easily cause polystyrene boards during concrete pouring. Due to the closed formwork of the component, it is not easy to be found, and the broken polystyrene board fragments will enter the steel skeleton of the post-cast component, causing serious quality problems

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