Segmented installation method of large mirror door

Abstract

The invention discloses a segmental installation method for a large-scale mirror door in the technical field of gates. The method divides an arc-shaped door into at least 6 single-section door leaves for manufacture. During on-site construction, the concrete foundation is poured first, and then the lofting platform is built. , stake out on the stakeout platform, then build the support seat and pressure steel plate, then place the grouped single-section door leaves on the stake out platform, transfer them to the pressure steel plate for welding after spot welding, and finally weld each group of doors The leaves are moved to the lofting position for final welding connection. After the completion, the hinge seat and hoist are installed, and the bottom water stop and side water stop are installed after the arc door is lifted by the hoist. The construction scheme of this method is simple and easy to implement, which can reduce the difficulty of transportation and hoisting, reduce the workload of correcting the deformation of the gate after welding, avoid rework caused by accumulated installation errors, and reduce operating procedures, so as to achieve the purpose of improving installation quality, reducing costs and increasing efficiency .

Description

technical field [0001] The invention relates to a method for installing and constructing a gate, in particular to a method for constructing a large mirror door. Background technique [0002] In the prior art, there is a mirror door, its application number: 200510026634.5; application date: 2005-06-09, the structure of the device mainly includes a movable arc door, hinge seats are arranged at both ends of the arc door, and the arc Lifting beams are symmetrically installed on the outer arc side of the door, coil hoists are installed on hoist bases on both sides of the arc door, sills are installed at the bottom of the arc door, and side water stops are installed on both sides of the arc door. The bottom of the arc door is provided with a bottom water stop, the two ends of the movable door leaf are provided with buttresses, the hinge seat is installed on the support pier, and the hinge seat is connected to both sides of the arc door through the hinge. The cable is connected to...

AI Technical Summary

Problems solved by technology

When the single-hole span of the device is small, it can be directly assembled and transported to the installation location for installation. For large-scale protective mirror doors with a single-hole span of more than 30 meters, direct assembly will not be able to transport and lift, and it will be installed on-site. It is a good idea, but there are the following difficulties in on-site installation, one: it is difficult to stake out on site, and it is not easy to locate each reference point

Second, on-site welding is difficult. At present, when the goggle door is welded on site, it is assembled piece by piece from bottom to top. Since the goggle door needs to be welded from both sides at the same time when welding, thermal deformation can be minimized, and it can be directly welded in the river channel. When welding, the personnel and pipelines on the outer arc side and inner arc side of the goggle door are separated, and they need to cross the top of the door to communicate with each other, making it difficult to weld on site

Third, the accumulated errors in the welding process are difficult to eliminate, resulting in large overall errors and difficult installation

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