Anti-leakage structure of building expansion joints

Abstract

The invention relates to a building expansion joint anti-seeping structure, which comprises a sealing material, an upstream face filling material, a middle embedded waterstop belt, a downstream face filling material and left and right steel bar frameworks, wherein the left and right steel bar frameworks are symmetrically arranged at the two sides of the original structure telescopic seams; waterstop strips which expand when meeting water are arranged between the left and right steel bar frameworks and old concrete; left and right steel bar frameworks are respectively arranged in positions, near the original structure expansion joint, of the left and right steel bar frameworks; a left installing cavity is formed between the two left steel bar frameworks; a right installing cavity is formed between the two right steel bar frameworks; the left and right parts of the middle embedded waterstop belt are arranged in the left and right installing cavities; left and right new concrete is cast by using the left and right steel bar frameworks as the foundation; the downstream face filling material jacks a position between the sealing material and the middle embedded waterstop belt. The building expansion joint anti-seeping structure has the advantages that the connection with the concrete is firm and reliable; the leakage blocking effect is good; the service life is long; the deformation capability is high; the concrete expansion joint seepage problem is solved.

Description

Technical field: [0001] The present invention relates to the construction of buildings, and more particularly to an in situ fabricated joint sealing structure. Background technique: [0002] Expansion joint refers to a structural joint set along the appropriate part along the length of a building or structure in order to prevent cracks or damage to the structure due to climate temperature changes (thermal expansion, cold contraction). The leakage phenomenon caused by the damage of the water stop system of the expansion joint due to settlement, deformation and other factors often occurs in engineering practice. The reason is mostly caused by the damage of the buried water stop belt (buried water belt) caused leakage. [0003] At present, the existing technology mainly adopts the following three treatment methods for the above leakage: 1. Directly adopt the chemical grouting method with additional waterproofing, that is, the filler on the water-facing surface of the buried wa...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an anti-leakage structure for building expansion joints that is firmly connected to concrete, has good plugging effect, long service life, and strong deformation adaptability, so as to solve the problem of concrete expansion joints caused by settlement and deformation. Leakage problems caused by damage to the expansion joint water-stop system due to factors such as

Images