Supporting method of supporting device for "cun" type steel member

Abstract

The application is a supporting device and supporting method for "Cun" type steel components; comprising an upper connecting plate, mounting bolts, an upper end fixing part, an upper end supporting type steel, a supporting screw rod, a retreat-stopping nut, a screw rod sleeve, a jack, a main support, a mounting backrest, a clamping plate, a lower end fixing part, and a safety belt clamping hole; the upper end fixing part is fully fusion welded to the component to be supported, and the upper connecting plate is connected to the upper end fixing part by the mounting bolts before hoisting the component to be supported; the bottom of the upper end supporting type steel is welded to the supporting screw rod, the screw rod sleeve is welded to the main support, and the supporting screw rod is sleeved in the screw rod sleeve and can slide up and down; the method saves a large amount of installation, adjustment and fixing welding time, is easy to turn over and use, is convenient to install and disassemble, and saves working hours. The jack can be used for stepless adjustment, the adjustment nut can be used for fixing the adjusted part, the upper connecting plate can be used for restraining displacement in the remaining directions, the force transmission path is clear, and the working property is stable and reliable.

Claims

1. A supporting method for a supporting device of a "cun" - shaped steel member. The supporting device includes an upper connecting plate (1), mounting bolts (2), an upper fixing part (3), an upper supporting steel section (4), a supporting screw rod (5), a locking nut (6), a screw rod sleeve (7), a jack (8), a main support (9), a mounting backrest (10), a clamping plate (11), a lower fixing part (12), and a safety belt buckle hole (13). in, The upper fixing part (3) is connected to the to - be - supported member by full - penetration welding. The upper connecting plate (1) is connected to the upper fixing part (3) by mounting bolts (2) before hoisting the to - be - supported member. The bottom of the upper supporting steel section (4) is welded to connect the supporting screw rod (5). The screw rod sleeve (7) is welded to the main support (9), and its inner diameter is 1 - 2 mm larger than the outer diameter of the supporting screw rod (5). The supporting screw rod (5) is sleeved in the screw rod sleeve (7) and can slide up and down. The main support (9) is in a column structure, is positioned by the clamping plate (11), and is fixed to the structure through the lower fixing part (12). Its characteristics are that: the supporting method includes Step 1: The upper connecting plate (1), mounting bolts (2), and upper fixing part (3) are pre - connected to the to - be - supported member before hoisting. Step 2: After the upper supporting steel section (4) is welded to the supporting screw rod (5), the end of the upper supporting steel section (4) is leveled. Step 3: The upper supporting steel section (4), supporting screw rod (5), locking nut (6), and jack (8) are used to level the to - be - supported structure. When in use, first use the jack (8) to level the to - be - supported structure in place, and then tighten the locking nut (6) so that the upper supporting steel section (4) and the supporting screw rod (5) can bear the upper pressure. After the to - be - supported structure is leveled, weld the locking nut (6) firmly to the upper flat plate of the screw rod sleeve (7). Regarding leveling: Since the "cun" - shaped steel member is a special - shaped member, during the processing and installation process, the interfaces in the "up - down, left - right, front - back" directions may all need to be adjusted. Therefore, it is necessary to balance the deformation misalignment weights in multiple directions. During the process of leveling with a total station, continuously adjust. For the high end, use the jack to press tightly, and for the low end, loosen the jack, so that it can balance the errors caused by processing and installation until it is leveled in place. Among them, after adjusting with the jack (8), tighten the locking nut (6) to prevent the jack (8) from sliding. Step 4: When the operator takes his position, first clip the safety belt buckle into the safety belt buckle hole (13). Then, the person stands on the ladder, gets into the backrest (10), and stands on the ladder. Install the backrest (10) so that both hands can be used during installation to improve work efficiency. The clamping plate (11) and the lower fixing part (12) are buried in the concrete with the following beam, saving the disassembly time. The upper fixing part (3) serves as a sling eye for subsequent installation. The backrest (10) is installed before the main support (9) is hoisted. The clamp (11) and the lower fixing part (12) are laid out and installed according to the actual installation coordinates of the components on site before the installation of the lower structure of the main support (9). During the operation of the workers, the safety belt needs to be hung on the safety belt buckle hole (13) and stand on the on-site safety ladder, and use the backrest (10) to free their hands. Step 5: Overall installation: 1) Install the backrest (10) before hoisting the main support (9). Install the clamp (11) and the lower fixing part (12) before installing the lower structure of the main support (9). Based on the actual installation coordinates of the components on site, lay out and install them with a total station. 2) Install the main support (9) after the lower structure of the main support (9) is completed; 3) Install the “inch” shaped component to be supported. At this time, people go up to adjust the main support (9) and level the structure to be supported.

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