A concrete expansion joint double water-stop structure fixture

Abstract

A fixing part of a concrete expansion joint double-sealing-up structure comprises embedded fixing part bodies, pull rods and flat iron, and is characterized in that reinforcing ribs are arranged at one ends of the embedded fixing part bodies, the other ends of the embedded fixing part bodies are provided with upwards bent hooks, the three embedded fixing part bodies are embedded in first-stage concrete at set intervals in parallel, the hooks at the ends protrude out of the concrete fracture surface, a round ring is arranged at one end of each pull rod, the other ends of the pull rods are provided with threads and nuts, the round rings of the three pull rods are arranged on the hooks respectively in a sleeving mode, the flat iron is rectangular, long holes corresponding to the pull rods are formed in the two ends and middle of the flat iron, the three pull rods penetrate through the long holes of the flat iron respectively, and fastening nuts fix two U-shaped steel channels on the first-stage concrete fracture surface at the same time. The fixing part of the concrete expansion joint double-sealing-up structure can solve the problem of water seepage caused by uneven stratum settlement or diastrophism in the water conservancy project, and can also save labor and shorten the project duration.

Description

technical field [0001] The invention relates to an underground (underwater) building waterproof device, in particular to a double water-stop structural fixture for concrete expansion joints. Background technique [0002] In existing concrete structures, such as retaining dams, reservoirs, subways, culverts, sluices, tunnels and other underground projects, due to the inability to pour continuously or the deformation of the foundation settlement (earthquake), or the concrete caused by temperature changes Expansion joints and deformation joints should be reserved during pouring due to thermal expansion and contraction of components, and anti-leakage measures should be taken for these gaps to prevent external water or groundwater from leaking into the structural space. A concrete groove is set between the stage concrete and the second stage concrete, and soft asphalt and copper sheets or rubber waterstops are arranged in the groove. However, this method requires prefabricated co...

AI Technical Summary

Problems solved by technology

[0002] In existing concrete structures, such as retaining dams, reservoirs, subways, culverts, sluices, tunnels and other underground projects, due to the inability to pour continuously or the deformation of the foundation settlement (earthquake), or the concrete caused by temperature changes Expansion joints and deformation joints should be reserved during pouring due to thermal expansion and contraction of components, and anti-leakage measures should be taken for these gaps to prevent external water or groundwater from leaking into the structural space. A concrete groove is set between the stage concrete and the second stage concrete, and soft asphalt and copper sheets or rubber waterstops are arranged in the groove. However, this method requires prefabricated concrete grooves. The 3 sides of the groove are chiselled, which will prolong the construction period and increase the labor. At the same time, because the length (height) of each concrete groove is generally only 50-100cm, the expansion gap must be composed of multiple concrete grooves, so there will be many. Horizontal gaps and irregular deformation of multiple concrete grooves will cause run-off of soft asphalt poured in the subsequent sequence, and it is difficult to clean up

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