A prefabricated beam-to-beam connection node

Abstract

The invention discloses a new type of prefabricated beam-beam connection node, which belongs to the technical field of prefabricated beam connection. In this scheme, the just-stirred concrete is introduced into the left side of the partition steel plate, so that the concrete enters the guide hole, and the heat is transferred to the buffer The airbag makes it expand, and when the cushioning airbag touches the first cone thorn, the cushioning airbag breaks, so that the concrete enters the right side of the separating steel plate through the guide hole, and the heat of the concrete is transferred to the folding airbag through the fixed circular plate, so that the folding airbag The ammonium bicarbonate powder inside is decomposed by heat to produce carbon dioxide, ammonia and water, which makes the foldable airbag expand rapidly, thereby pushing the steel catheter through the active hole and inserting it into the storage tank. When the release rod enters the steel catheter and breaks the second When the membrane is closed, after the resistance ball moves out of the air hole, the interior of the steel conduit and the storage tank is filled with concrete, thereby improving the connection strength between the first prefabricated beam and the second prefabricated beam.

Description

technical field [0001] The invention relates to the technical field of prefabricated beam connection, more specifically, to a prefabricated beam connection node. Background technique [0002] Bridges generally refer to structures erected on rivers, lakes and seas to allow vehicles and pedestrians to pass smoothly. In order to adapt to the modern high-speed development of the transportation industry, bridges are also extended to buildings that cross mountain streams, poor geology or meet other transportation needs to make traffic more convenient. A bridge is generally composed of a superstructure, a substructure, a support and ancillary structures. The superstructure is also called a bridge span structure, which is the main structure for crossing obstacles; the substructure includes abutments, piers and foundations; Or the force transmission device installed at the supporting place of the bridge abutment; the auxiliary structure refers to the bridge head board, conical slope...

AI Technical Summary

Problems solved by technology

For the main girder-secondary girder joints, the overall binding of the steel bars at the joints of the girders in the factory is carried out first, which is similar to the on-site construction process; the special joint formwork is designed for the overall concrete pouring and indoor maintenance until the quality is qualified; transported to the site to complete the hoisting, The node parts have been completed, and only the steel bars and connections at the ends need to be dealt with. At present, most bridge connections mainly cover the main beam-secondary beam, secondary beam-secondary beam, beam steel joints, etc., and there is no mention of an integral Composite beams, and when bridges are connected, the steel bars need to be aligned with the reserved holes, so that the process of connecting two composite beams is cumbersome, and because bridges are usually heavy, it increases the difficulty of on-site operations

Images