Cantilever scaffold steel girder anchoring method

Abstract

The invention discloses a cantilever scaffold steel girder anchoring method. The method comprises the following steps: after the mounting of a concrete floor bottom die and before the pouring of concrete, fixing a casing pipe on a casing pipe base so as to form a pre-buried pore forming device, and fixing the pre-buried pore forming device at a cantilever scaffold steel girder anchoring position; after the solidification of the concrete, forming two pores which are vertical to a floor; screwing a nut into the upper surface of the floor, screwing a nut into the lower surface of the floor, and after aligning the position of an anchoring bolt, screwing the nuts on the upper and lower surfaces of the floor at the same time so as to fix a steel girder on the floor; and when dismounting is needed after the construction, unscrewing the nut at any one of the upper and lower ends of the anchoring bolt so as to rapidly dismount the anchoring bolt without taking the pre-buried pore forming device out from the floor. Through the casing pipe base, the casing pipe can be vertical to the floor all the time and does not tilt during the pre-burying; the mounting and dismounting are convenient and the connection is stable, so that the construction safety can be ensured; and the method can be repeatedly used, so that the materials are saved, the labor is greatly saved and the working efficiency is improved.

Description

technical field [0001] The invention relates to an anchoring method for a steel beam of a cantilevered scaffold, which belongs to the technical field of building structures. Background technique [0002] In the past two decades, with the rapid development of my country's construction industry, building structures have advanced towards higher and more complex forms, and high-rise and special-shaped building structures are increasing, and cantilevered scaffolding is often a necessary condition to ensure its smooth construction. The usage is huge. Among them, the anchorage of the steel beam in the cantilevered scaffold is the key to ensure the safety of the cantilevered scaffold. At present, most of the traditional anchoring methods for cantilevered scaffolding steel beams are mostly using anchor bolts cast-in-place in concrete floors. The anchor bolts can only be used once, and after use, it will take a lot of work to cut off the part beyond the floor. This method not only w...

AI Technical Summary

Problems solved by technology

This method not only wastes a lot of steel, but also wastes a lot of manpower and material resources for the removal of redundant anchor bolts.

Images