Adjusting type light movable formwork support and steel formwork capable of guaranteeing tightness of joint of new concrete and old concrete of lock chamber

Abstract

The invention discloses an adjusting type light movable formwork support and a steel formwork capable of guaranteeing tightness of a joint of new concrete and old concrete of a lock chamber. The steelformwork comprises an outer side formwork body and an inner side formwork body; a first retaining piece is arranged at the bottom of the inner side formwork body; a first open groove for storing a first rubber sealing piece is formed in the first retaining piece; and part of the first rubber sealing piece protrudes out of the first open groove and is attached to the inner side concrete wall of awall chamfer of the lock chamber. By adopting the steel formwork, the tightness of the joint of the new concrete and the old concrete in the connection position of the wall body chamber and a wall body can be guaranteed, on one hand, construction according to the structure design is guaranteed, and on the other hand, the phenomena of root rot and mortar leakage are avoided after the steel formworkis mounted. Gantries of the light movable formwork support adopt combined splicing structures of box beams and truss arms, the structural strength requirement is met, safety risks are reduced, the structural weight is decreased, the dimension of the formwork support is adjustable, and the characteristics of recycling, saving of the construction cost and the like are achieved.

Description

technical field [0001] The invention relates to an adjustable light-duty mobile formwork used for pouring a ship lock chamber and a steel formwork thereof. Background technique [0002] As the main project of the ship lock, the construction quality and progress of the ship lock chamber are the controlling nodes of the whole project, and it needs to be poured at one time. Take a lock chamber pouring project as an example: the total length of the lock chamber is 200 meters, and the length of each joint is 16.645 meters, a total of 12 sections, the top of the wall is 0.8 meters wide, the bottom is 2.4 meters wide, and the wall height is 11.13 meters. [0003] The traditional lock chamber wall formwork adopts loose steel formwork, uses Bailey sheets to combine large-scale formwork, and uses cranes or manual assembly on site, which has the advantages of difficult assembly of Bailey frame, high labor costs, long installation and dismantling time, and high construction safety risks...

AI Technical Summary

Problems solved by technology

[0008] During the chamfering of the gate chamber wall and the construction of the wall body, it is difficult to avoid the occurrence of grout leakage and root rot at the joints. In the past, the width of the top of the chamfer was artificially modified during construction, and the width of the top surface was increased by 5 on both sides. cm, the bottom of the seam is seamed with sponge, but there are still rotten roots and grout leakage

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