阅读说明：本技术 一种叠合板安装台车配合塔吊安装叠合板的施工工艺 (Construction process for mounting laminated slab by matching laminated slab mounting trolley with tower crane ) 是由 王耀 徐洪广 何友泉 魏炜 郑辉 于 2019-10-23 设计创作，主要内容包括：本发明涉及一种叠合板安装台车配合塔吊安装叠合板的施工工艺,包括以下步骤：台车行走至叠合板安装位置的下方的指定区域；调整顶撑升至梁柱结构顶面的上方,塔吊吊起叠合板,并将叠合板放置在顶撑顶面上；台车移动微调叠合板的位置；叠合板四角下方立竖直的立杆；顶撑下降,梁柱结构和立杆接住叠合板；顶撑继续下降,顶撑与叠合板脱离,台车行走至下一块叠合板安装位置下方；重复步骤一至步骤五,直至该楼层的最后一块叠合板；塔吊将台车吊离该施工楼层；塔吊吊装最后一块叠合板,人工辅助安装至指定位置处。该工艺能够大量减少塔吊的占用时间,实现叠合板的精准快速的安装,提高了施工效率并且降低安全风险、操作成本和工人们的劳动强度。(The invention relates to a construction process for installing a laminated slab by matching a laminated slab installation trolley with a tower crane, which comprises the following steps of: the trolley travels to a designated area below the installation position of the laminated slab; adjusting the top brace to be lifted above the top surface of the beam column structure, hoisting the laminated slab by using a tower crane, and placing the laminated slab on the top surface of the top brace; the trolley moves to finely adjust the position of the laminated slab; vertical upright posts are vertically arranged below four corners of the laminated slab; the top support descends, and the beam column structure and the vertical rod are connected with the laminated slab; the top stay continues to descend, the top stay is separated from the laminated slab, and the trolley travels to the position below the installation position of the next laminated slab; repeating the first step to the fifth step until the last laminated slab of the floor is obtained; the tower crane lifts the trolley away from the construction floor; and hoisting the last laminated slab by using the tower crane, and manually and auxiliarily installing the laminated slab to the specified position. The process can greatly reduce the occupied time of the tower crane, realize accurate and quick installation of the laminated slab, improve the construction efficiency and reduce the safety risk, the operation cost and the labor intensity of workers and people.)

1. The utility model provides a superimposed sheet installation platform truck cooperation tower crane installation superimposed sheet's construction technology which characterized in that: the laminated slab mounting trolley comprises a movable base (1), an outer vertical frame (2) fixed on the base (1), an inner vertical frame (3) sleeved in the outer vertical frame (2) and capable of moving up and down relative to the outer vertical frame (2), and a top support (4) fixed on the top surface of the inner vertical frame (3); the bottom surface of the base (1) is provided with a movable wheel (12), a vertically arranged main body rack (24) is fixed on the outer vertical frame (2), a lifting motor (35) with a speed reducer (351) is fixed on the inner vertical frame (3), a gear (352) is fixedly sleeved at the end part of an output shaft of the speed reducer (351), and the gear (352) is meshed with the main body rack (24);

the construction process comprises the following steps:

step one, a trolley travels to a designated area below a mounting position of a laminated slab;

secondly, the top support (4) is lifted to the upper part of the beam column structure surface, the laminated slab is hoisted by a tower crane, and the laminated slab is placed on the top surface of the top support (4);

thirdly, moving the trolley to finely adjust the position of the laminated slab;

step four, respectively and vertically supporting vertical rods of the laminated slab below four corners of the laminated slab;

step five, the top support (4) descends, and the laminated slab is erected on the edge of the beam-column structure and the upright stanchion; the top support (4) continues to descend, the top support (4) is separated from the laminated slab, and the trolley travels to the position below the installation position of the next laminated slab;

repeating the first step to the fifth step until the last laminated slab of the floor is obtained;

step six, the tower crane lifts the trolley away from the construction floor;

and seventhly, hoisting the last laminated slab by using the tower crane, and manually and auxiliarily installing the laminated slab to a specified position.

2. The construction process for installing the laminated slab by matching the laminated slab installation trolley with the tower crane according to claim 1, wherein the construction process comprises the following steps: the moving wheel (12) comprises two directional wheels (121) and at least one universal wheel (122), the moving directions of the directional wheels (121) are parallel to each other, and the directional wheels (121) are driven to rotate by a translation motor; the trolley walking and fine tuning method comprises the following specific steps: the translation motors of all the directional wheels (121) rotate positively to drive all the directional wheels (121) to rotate towards the same direction, and the trolley is driven to move forwards; all the translation motors rotate reversely to drive all the directional wheels (121) to rotate towards the other direction and drive the trolley to move backwards; the translation motor of one directional wheel (121) stops working, and the translation motor of the other directional wheel (121) rotates forwards or backwards to drive the trolley to steer.

3. The construction process for installing the laminated slab by matching the laminated slab installation trolley with the tower crane according to claim 1, wherein the construction process comprises the following steps: the lifting steps of the top support (4) are as follows: the lifting motor (35) starts to rotate forwards, the lifting motor is meshed with the main rack (24) through the gear (352), the inner vertical frame (3) moves upwards relative to the outer vertical frame (2), and the top support (4) rises; the lifting motor (35) is started to rotate reversely, the inner vertical frame (3) moves downwards relative to the outer vertical frame (2) through the gear (352) meshed with the main body rack (24), and the top support (4) descends.

4. The construction process for installing the laminated slab by matching the laminated slab installation trolley with the tower crane according to claim 1, wherein the construction process comprises the following steps: and step five, standing a vertical upright rod for supporting the middle part of the laminated slab below the center of the laminated slab.

5. The construction process for installing the laminated slab by matching the laminated slab installation trolley with the tower crane according to claim 1, wherein the construction process comprises the following steps: the bottom surface welding of shore (4) has many member bars (42), and the tower crane hoisting platform truck in step six specific steps as follows: a fixed rope is hooked by a lifting hook of the tower crane, and after the fixed rope is fastened with a rod piece (42) below the top support (4), the tower crane lifts the trolley away.

6. The construction process for installing the laminated slab by matching the laminated slab installation trolley with the tower crane according to claim 1, wherein the construction process comprises the following steps: the concrete steps of installing the last laminated slab by the artificial auxiliary tower crane in the seventh step are as follows: hoisting the last laminated slab by the tower crane to move to the installation position, erecting four vertical rods at four corners of the installation position of the last laminated slab, and guiding the laminated slab to the installation position by manual assistance; the tower crane descends slowly, and the laminated slab is positioned by manual assistance until the last laminated slab is supported on the beam column structure and the vertical rod.

7. The construction process for installing the laminated slab by matching the laminated slab installation trolley with the tower crane according to claim 6, wherein the construction process comprises the following steps: and a vertical rod is erected below the center of the last laminated slab.

Technical Field

The invention relates to the technical field of laminated slab construction processes, in particular to a construction process for installing a laminated slab by matching a laminated slab installation trolley with a tower crane.

Background

The traditional superimposed sheet adopts tower crane hoist and mount and needs to cooperate artifical supplementary manual installation. Specifically, referring to fig. 1, the construction process of the conventional composite slab is as follows: the tower crane lifts by crane the superimposed sheet of treating the installation, founds four pole settings in superimposed sheet four corners below, and constructor stands on the beam column structure of this layer of floor, and the superimposed sheet is to suitable position to the supplementary guide of artifical external force, and the tower crane descends slowly, and the superimposed sheet location is caught to the supplementary tower crane of artifical, four pole settings of superimposed sheet below.

Because the superimposed sheet precision of the supplementary installation of tower crane is low, in order to improve superimposed sheet installation effectiveness, make the superimposed sheet a bit at present, make the superimposed sheet take a seat and put in place the back, the superimposed sheet is put up on four poles of the earth completely. And the superimposed slab and the wall column are not overlapped to form a gap, so that a template is firstly overlapped between the superimposed slab and the wall column, then cement mortar is poured to fill the gap, and finally concrete can be poured on the floor surface of the superimposed slab.

However, when the composite slab is installed, the two ends of the composite slab are ideally erected on a beam or a column, and the contact surfaces of the two ends are about 1cm wide, so that the complicated steps of overlapping templates, pouring cement mortar and the like for filling the gap between the end part of the composite slab and the beam column can be omitted. However, the traditional construction process for installing the laminated slab by using the tower crane cannot meet the precision requirement of the installation position, a manual auxiliary mode is adopted, workers need to continuously adjust the horizontal position of the laminated slab in the installation process, the whole working efficiency is low, the tower crane needs to be occupied for a long time to assist the installation of the laminated slab, and the requirement of quick construction cannot be met.

Disclosure of Invention

In order to solve the problems, the invention aims to provide a construction process for installing a laminated slab by matching a laminated slab installation trolley with a tower crane, the process can greatly reduce the occupied time of a tower crane, realize accurate and quick installation of the laminated slab, improve the construction efficiency and reduce the safety risk, the operation cost and the labor intensity of workers and people.

In order to achieve the purpose, the invention adopts the following technical scheme:

a construction process for installing a laminated slab by matching a laminated slab installation trolley with a tower crane comprises a movable base, an outer vertical frame fixed on the base, an inner vertical frame sleeved in the outer vertical frame and capable of moving up and down relative to the outer vertical frame, and a top support fixed on the top surface of the inner vertical frame; the bottom surface of the base is provided with a movable wheel, a vertically arranged main body rack is fixed on the outer vertical frame, a lifting motor with a speed reducer is fixed on the inner vertical frame, a gear is fixedly sleeved at the end part of an output shaft of the speed reducer, and the gear is meshed with the main body rack;

the construction process comprises the following steps:

step one, a trolley travels to a designated area below a mounting position of a laminated slab;

secondly, jacking and lifting the top support to the position above the top surface of the beam-column structure, hoisting the laminated slab by using a tower crane, and placing the laminated slab on the top surface of the jacking and supporting;

thirdly, moving the trolley to finely adjust the position of the laminated slab;

step four, respectively and vertically supporting vertical rods of the laminated slab below four corners of the laminated slab;

step five, the top support descends, and the laminated slab is erected on the beam-column structure and the upright stanchion; the top stay continues to descend, the top stay is separated from the laminated slab, and the trolley travels to the position below the installation position of the next laminated slab;

repeating the first step to the fifth step until the last laminated slab of the floor is obtained;

step six, the tower crane lifts the trolley away from the construction floor;

and seventhly, hoisting the last laminated slab by using the tower crane, and manually and auxiliarily installing the laminated slab to a specified position.

The moving wheels comprise two directional wheels and at least one universal wheel, the moving directions of the directional wheels are parallel to each other, and the directional wheels are driven by a translation motor to rotate; the trolley walking and fine tuning method comprises the following specific steps: the translation motors of all the directional wheels rotate positively to drive all the directional wheels to rotate towards the same direction, and the trolley is driven to move forwards; all the translation motors rotate reversely to drive all the directional wheels to rotate towards the other direction and drive the trolley to move backwards; the translation motor of one directional wheel stops working, and the translation motor of the other directional wheel rotates forwards or reversely to drive the trolley to steer.

Wherein, the lifting step of the top support is as follows: the lifting motor starts to rotate forwards, the lifting motor is meshed with the main rack through a gear, the inner vertical frame moves upwards relative to the outer vertical frame, and the top support rises; the lifting motor is started to rotate reversely, the inner vertical frame is meshed with the main body rack through the gear, the inner vertical frame moves downwards relative to the outer vertical frame, and the top support descends.

And C, after the fifth step, the following step is carried out, and a vertical upright post for supporting the middle part of the laminated slab is erected below the center of the laminated slab.

Wherein, the bottom surface welding of shore has many poles, and the tower crane hoisting platform truck in step six specific steps as follows: a fixed rope is hooked by a lifting hook of the tower crane, and after the fixed rope is tied and fixed with a rod piece below the top support, the tower crane lifts the trolley away.

And the concrete steps of installing the last laminated plate by the artificial auxiliary tower crane in the seventh step are as follows: hoisting the last laminated slab by the tower crane to move to the installation position, erecting four vertical rods at four corners of the installation position of the last laminated slab, and guiding the laminated slab to the installation position by manual assistance; the tower crane descends slowly, and the laminated slab is positioned by manual assistance until the last laminated slab is supported on the beam column structure and the vertical rod.

Wherein, a vertical rod is arranged below the center of the last laminated slab.

The invention has the following beneficial effects:

the construction process can greatly reduce the occupied time of the tower crane, realize the accurate and quick installation of the laminated slab, improve the construction efficiency and reduce the safety risk, the operation cost and the labor intensity of workers and people.

The construction process of the laminated slab adopts the laminated slab mounting trolley to be matched with the tower crane to mount the laminated slab, wherein the movement and the position adjustment of the laminated slab are carried out by the trolley, compared with the traditional mounting mode of a manual auxiliary tower crane, the occupied time of the tower crane in the mounting process of the laminated slab is greatly reduced, the trolley is used for assisting the mounting of the laminated slab, only one worker is needed to operate the trolley, and the lifting, the front-back movement and the left-right movement of the trolley can meet the millimeter-scale displacement requirement, so that the mounting efficiency of the laminated slab is improved.

Drawings

FIG. 1 is a flow chart of a conventional construction process for a laminated slab;

FIG. 2 is a schematic view of the overall structure of the composite slab mounting trolley of the present invention in one angle;

FIG. 3 is a schematic view of the overall structure of the plywood mounting trolley of the present invention at another angle;

FIG. 4 is a schematic structural view of the base and the outer stand of the pallet for installing superimposed plates according to the present invention;

FIG. 5 is an enlarged schematic view of the structure at A in FIG. 3;

FIG. 6 is a schematic structural view of the inner uprights and the top brace of the pallet for installing a composite slab of the present invention;

FIG. 7 is a schematic view of the rolling wheels of the pallet for installing superimposed sheets of the present invention;

FIG. 8 is a schematic view of the construction of the extension frame of the pallet for installing a laminated slab of the present invention;

FIG. 9 is a flow chart of the construction process of the composite slab of the present invention.

Description of reference numerals:

1-base, 11-base body, 111-long steel, 112-short steel, 113-connecting plate, 12-moving wheel, 121-directional wheel, 122-universal wheel, 2-outer vertical frame, 21-outer upright post, 211-fixing plate, 212-clamping boss, 22-outer cross bar, 23-triangular steel block, 24-main body rack, 241-L-shaped fixing piece, 242-limiting block, 25-main roller group, 251-rolling wheel, 252-threaded shaft, 253-positioning sleeve, 254-wheel body, 255-connecting square tube, 3-inner vertical frame, 31-inner upright post, 32-inner cross bar, 311-buffer piece, 33-L-shaped steel plate, 34-connecting frame, 341-connecting rod, 35-lifting motor, 351-speed reducer, 352-gear, 36-limit wheel, 361-limit frame, 4-top support, 41-reinforcing plate, 42-rod, 5-extension frame, 51-extension upright, 52-extension cross rod, 53-extension rack and 54-auxiliary roller group.

Detailed Description

The invention is described in further detail below with reference to the following figures and specific examples:

referring to fig. 2 to 8, the stacking plate installation trolley comprises a movable base 1, an outer vertical frame 2 fixed on the base 1, an inner vertical frame 3 sleeved in the outer vertical frame 2 and capable of moving up and down relative to the outer vertical frame 2, and a top support 4 fixed on the top surface of the inner vertical frame 3.

The base 1 comprises a base body 11 and a moving wheel 12 connected below the base body 11. As an embodiment of the seat body 11, the seat body 11 may be welded into a cross shape by using i-steel. In this embodiment, the seat body 11 includes a long steel 111 and short steels 112 perpendicular to the long steel 111 and welded to two sides of the middle of the long steel 111, the long steel 111 and the two short steels 112 are connected to form a cross shape, and the top surface and the bottom surface are flush with each other. Preferably, the top and bottom surfaces of the welded part of the long steel 111 and the short steel 112 are welded with connecting plates 113 connecting the long steel 111 and the short steel 112, respectively. The moving wheel 12 comprises at least two directional wheels 121 and at least one universal wheel 122 connected to the bottom surface of the base body 11, the moving directions of at least two of all the directional wheels 121 are parallel to each other, and each directional wheel 121 is driven by a translation motor (not shown in the figure) to rotate so as to enable the base 1 to move; the universal wheels 122 are provided with braking devices (not shown in the figures) which are activated to fix the position of the trolley when the trolley is adjusted in place. In this embodiment, one end of the long steel 111 and the outer end of one of the short steels 112 are respectively provided with a directional wheel 121, and the other end of the long steel 111 and the outer end of the other short steel 112 are respectively provided with a universal wheel 122.

Outer grudging post 2 is connected the frame construction that forms and hold interior grudging post 3 by many outer stands 21 of vertical setting and many outer horizontal poles 22 of level or slope setting, the bottom surface welding of outer stand 21 has fixed plate 211, fixed plate 211 passes through fastener fixed connection such as screw on the pedestal 11 top surface, the top surface of outer stand 21 is provided with the card of epirelief 212. In this embodiment, the number of the outer columns 21 is four, and two adjacent outer columns 21 are fixedly connected through a plurality of outer cross bars 22. Preferably, a triangular steel block 23 is welded between the outer upright post 21 and the outer cross bar 22. A main body rack 24 is vertically fixed on the outer crossbars 22 on the same side of the outer vertical frame 2. The outer cross rod 22 at the top end of the main body rack 24 is detachably connected with a limiting block 242 through an L-shaped fixing piece 241, and the limiting block 242 is located right above the main body rack 42.

The inner vertical frame 3 is formed by connecting a plurality of inner vertical columns 31 vertically arranged and a plurality of inner cross bars 32 horizontally or obliquely arranged to form a frame structure with a shape matched with that of the outer vertical frame 2, and the bottom surfaces of the inner vertical columns 31 are connected with buffering members 311 such as rubber blocks. In this embodiment, the number of the inner columns 31 is four, and two adjacent inner columns 31 are fixedly connected through a plurality of inner cross bars 32. Preferably, an inclined L-shaped steel plate 33 is welded between the inner upright 31 and the inner cross bar 32. A connecting frame 34 formed by a plurality of connecting rods 341 is horizontally fixed at the middle part of the inner vertical frame 3, a lifting motor 35 with a speed reducer 351 is fixed on the connecting frame 34, an output shaft of the speed reducer 351 is horizontally arranged, a gear 352 is fixedly sleeved at the end part of the speed reducer 351, and the gear 352 is meshed with the main body rack 24. Preferably, the main rack 24 is provided with a limit wheel 36 closely attached to the side surface of the main rack 24 on the side opposite to the gear 352, the limit wheel 36 is rotatably connected to a limit frame 361, and the limit frame 361 is fixedly connected to the connecting frame 34.

Further, each outer upright post 21 of the outer upright frame 2 is provided with a plurality of main roller groups 25 which wrap the corresponding inner upright post 31 of the inner upright frame 3 from top to bottom. In this embodiment, the outer column 21 and the inner column 31 are both in a square tube shape, the main roller set 25 includes two rolling wheels 251, the two rolling wheels 251 are respectively disposed on two side surfaces of the outer column 21 close to the inner column 31, a threaded shaft 252 of the rolling wheels 251 is horizontally disposed and is connected to the outer column 21 through a thread, a positioning sleeve 253 is fixedly sleeved outside the threaded shaft 252, and a wheel body 254 is rotatably sleeved on the positioning sleeve 253. The threaded shafts 252 of the two rolling wheels 251 of the roller set are arranged perpendicular to each other. The rolling wheel 251 of the main roller group 25 on the outer upright post 21 near one side of the main rack 24 is fixedly connected on the outer upright post 21 through a connecting square pipe 255 so as to compensate the distance between the inner upright post 3 and the outer upright post 2 which is caused by the fact that the main rack 24 is fixed on the inner side of the outer upright post 2.

Preferably, the outer vertical frame 2 is detachably connected with an extension frame 5, the extension frame 5 is formed by connecting a plurality of vertically arranged extension upright posts 51 and a plurality of horizontally or obliquely arranged extension cross bars 52 to form a frame structure with the same shape and size as the outer vertical frame 2, and the bottom surface of the extension upright post 51 is provided with an upward concave clamping groove for accommodating the clamping protrusion 212 of the outer upright post 21. In this embodiment, the number of the extension upright posts 51 is four, and two adjacent extension upright posts 51 are fixedly connected through a plurality of extension cross bars 52. Preferably, a triangular steel block 23 is welded between the extension upright 51 and the extension cross bar 52. The same side of the extension frame 5, which is provided with the main body rack 24 with the outer vertical frame 2, is vertically fixed with an extension rack 53, and when the extension frame 5 is placed on the outer vertical frame 2, the bottom surface of the extension rack 53 is tightly attached to the top surface of the main body rack 24 of the outer vertical frame 2. Each extension upright 51 of the extension frame 5 is provided with an auxiliary roller group 54 for wrapping and clamping the corresponding inner upright 31 on the inner upright 3. The structure of the auxiliary roller group 54 is the same as that of the main roller group 25, and will not be described in detail herein. Correspondingly, the rolling wheel 251 of the auxiliary roller group 54 on the extension upright 51 near one side of the extension rack 53 is also fixedly connected to the extension upright 51 through the connecting square tube 255.

Preferably, through holes or threaded holes are formed in the corresponding positions of the outer cross bar 22 of the outer vertical frame 2 and the inner cross bar 32 of the inner vertical frame 3, so that fasteners such as bolts can pass through the through holes or threaded holes to fixedly connect the outer vertical frame 2 and the inner vertical frame 3. Alternatively, through holes or threaded holes are formed in corresponding positions of the outer upright 21 of the outer upright 2 and the inner upright of the inner upright 3, so that fasteners such as bolts can pass through the through holes or threaded holes to fixedly connect the outer upright 2 and the inner upright 3.

Referring to fig. 1, the top brace 4 may have the same structure as the seat body 11, and specifically, the top brace 4 may be welded into a cross shape by using i-steel. Specifically, the top brace 4 includes a long steel 111 and short steels 112 perpendicular to the long steel 111 and welded to two sides of the middle of the long steel 111. Preferably, the top surfaces of the top struts 4 are flush, and the welding positions of the long steel 111 and the short steel 112 are respectively provided with triangular reinforcing plates 41 welded below the top walls of the long steel 111 and the short steel 112. Preferably, a vertical rod 42, such as round steel, for hoisting the tower crane is fixed on the bottom surface of the top support 4.

Referring to fig. 9, a laminated slab mounting process is carried out by using the assembly type laminated slab mounting trolley in cooperation with a tower crane, and comprises the following steps:

step one, a trolley travels to a designated area below a mounting position of a laminated slab;

step two, placing the tower crane hoisting laminated slab on a trolley:

the lifting motor 35 starts forward rotation, the lifting motor is meshed with the main body rack 24 through the gear 352, the inner vertical frame 3 moves upwards relative to the outer vertical frame 2 until the top support 4 rises to the position about 20 centimeters above the beam column structure surface, the tower crane lifts the laminated slab, and the laminated slab is placed on the top surface of the top support 4.

Step three, the trolley moves to finely adjust the position of the laminated slab:

the trolley walking and fine tuning method comprises the following steps: the translation motors of all the directional wheels 121 rotate positively to drive all the directional wheels 121 to rotate towards the same direction, so that the trolley is driven to move forwards; all the translation motors rotate reversely to drive all the directional wheels 121 to rotate towards the other direction, so that the trolley is driven to move backwards; the translation motor of one of the directional wheels 121 stops working, and the translation motors of the other directional wheels 121 rotate positively to drive the trolley to turn, so that the trolley is driven to travel to a specified position.

Step four, erecting rods below four corners of the laminated slab:

the vertical upright posts for supporting the laminated slab are respectively erected below four corners of the laminated slab, and the top surface of each upright post is flush with the top surface of the beam-column structure.

Step five, the trolley descends to enable the laminated slab to be supported on the beam column structure and the upright stanchion;

the lifting motor 35 is started to rotate reversely, the inner vertical frame 3 moves downwards relative to the outer vertical frame 2 through the gear 352 meshed with the main body rack 24, and the laminated slab frame is arranged at the position about 2 cm away from the edge of the beam-column structure and on the four vertical rods; the upgrading motor 35 continuously rotates reversely, the inner vertical frame 3 continuously moves downwards relative to the outer vertical frame 2, and the top support 4 is separated from the laminated slab;

preferably, a vertical upright post for supporting the middle part of the laminated slab is erected below the center of the laminated slab after the fifth step.

And repeating the first step to the fifth step until the last laminated slab of the floor is obtained.

Step six, the tower crane lifts the trolley away from the layer of construction floor:

a fixed rope is hooked by a lifting hook of the tower crane, and after the fixed rope is fixedly tied with a rod piece 42 below the top support 4, the tower crane hoists the trolley to the upper floor.

Step seven, installing the last laminated slab of the floor:

hoisting the last laminated slab by the tower crane to move to the installation position, erecting four vertical rods at four corners of the installation position of the last laminated slab, and guiding the laminated slab to the installation position by manual assistance;

the tower crane descends slowly, and the laminated slab is positioned by manual assistance until the last laminated slab is supported on the beam column structure and the vertical rod.

Preferably, a post is also erected below the center of the last superimposed slab.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to other related technical fields, are included in the scope of the present invention.