Rebar planting-free formwork erecting method for masonry construction and device thereof

Abstract

The invention discloses a rebar planting-free formwork erecting method for masonry construction and a device thereof. The method comprises the following steps of: building a single-skin masonry against a wall or a column steel bar before pouring concrete, arranging a lacing bar in a masonry mortar joint, sealing the single-skin masonry, the lacing bar, the wall or the column steel bar by using a rebar planting-free formwork erecting device in the masonry construction and the timber formwork of the concrete wall or concrete column, fixing the formwork erecting device by using an opposite-pull screw to form an integral combined sealing formwork system, and completing concrete pouring, wherein the rebar planting-free formwork erecting device in the masonry construction is in a U shape, a lacing bar through hole is formed on a front board of the formwork erecting device, and opposite-pull screw through holes are formed on two lateral boards of the formwork erecting device. When the method and the device of the invention are used, the problems of timber formwork loss, lacing bar offset and the like in the conventional method for arranging the lacing bar can be solved, later-period rebar planting is avoided in the integral pouring construction, and the earthquake resistant performance of buildings is improved.

Description

technical field [0001] The invention relates to the field of masonry construction in construction engineering, in particular to a formwork support method and device for masonry construction without planting bars. Background technique [0002] In building construction, tie bars need to be installed at the junction of concrete and masonry to meet the requirements of building earthquake resistance and crack resistance. The existing tie bars setting methods include pre-embedded method and post-planted bar method: the pre-embedded method is to open a hole on the wooden formwork to pre-embed the steel bars before concrete pouring. However, the tie bars are easily damaged by the vibration rod during the concrete pouring process. The vibration of the concrete produces deviation and cannot guarantee that it can meet the requirements of the location of the masonry mortar joints. In addition, too many holes in the wooden formwork will lead to serious loss of the formwork, low turnover ...

AI Technical Summary

Problems solved by technology

The existing tie bars setting methods include pre-embedded method and post-planted bar method: the pre-embedded method is to open a hole on the wooden formwork to pre-embed the steel bars before concrete pouring. However, the tie bars are easily damaged by the vibration rod during the concrete pouring process. The vibration of the concrete produces deviation and cannot guarantee that it can meet the requirements of the location of the masonry mortar joints. In addition, too many holes in the wooden formwork will lead to serious loss of the formwork, low turnover rate, and a large waste of materials; the post-planting reinforcement method is the later stage Before masonry construction, drilling holes on the concrete and using planting glue to tie and plant bars is widely used. However, due to the cumbersome process of planting bars and the imperfect management of planting bars, the depth of holes for many planting bars is not enough. The quality of the rebar glue cannot be guaranteed, resulting in poor pull-out test results and failure to meet the original design requirements, which will have a negative impact on the seismic performance of the house, and the noise and concrete powder of the rebar drilling will also cause environmental pollution

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