阅读说明：本技术 一种圆形储仓的装配式仓顶结构及其装配方法 (Assembly type bin top structure of round storage bin and assembly method thereof ) 是由 庞瑞 张天鹏 王怡晓 刘晓怡 王璐 陈桂香 黄彬 郭呈周 仇新义 于 2019-10-10 设计创作，主要内容包括：本发明涉及一种圆形储仓的装配式仓顶结构及其装配方法,装配式仓顶结构包括下环梁、预制上环梁和设置于下环梁与预制上环梁之间的仓顶,仓顶由多个沿周向拼接的扇形预制板构成,扇形预制板分为先搭扇形预制板和后搭扇形预制板,扇形预制板的底部具有朝向下环梁的底部连接沿,扇形预制板的顶部具有朝向预制上环梁的顶部连接沿,下环梁内侧设有用于与底部连接沿支撑配合的内凹支撑台阶,预制上环梁的外周开设有供各顶部连接沿伸入的上环梁接口,其中与先搭扇形预制板对应的上环梁接口低于与后搭扇形预制板对应的上环梁接口。本发明解决了现有技术中仓顶结构现场浇筑而导致的环境污染且现场工作量大、工作时间长的技术问题。(The invention relates to an assembled bin top structure of a circular storage bin and an assembling method thereof, wherein the assembled bin top structure comprises a lower ring beam, a prefabricated upper ring beam and a bin top arranged between the lower ring beam and the prefabricated upper ring beam, the bin top is formed by a plurality of fan-shaped prefabricated plates spliced along the circumferential direction, the fan-shaped prefabricated plates are divided into first-lapping fan-shaped prefabricated plates and second-lapping fan-shaped prefabricated plates, the bottoms of the fan-shaped prefabricated plates are provided with bottom connecting edges facing the lower ring beam, the tops of the fan-shaped prefabricated plates are provided with top connecting edges facing the prefabricated upper ring beam, the inner side of the lower ring beam is provided with a concave supporting step matched with the bottom connecting edges in a supporting mode, the periphery of the prefabricated upper ring beam is provided with upper ring beam interfaces extending into the top connecting edges, and the upper ring beam interfaces corresponding to the first-lapping fan-shaped prefabricated plates are lower than the. The invention solves the technical problems of environmental pollution, large field workload and long working time caused by the cast-in-place of the bin roof structure in the prior art.)

1. The utility model provides an assembled storehouse top structure of circular storage storehouse which characterized in that: including the ring beam down, ring beam and the storehouse top of setting between ring beam on the ring beam is gone up in the prefabrication, the storehouse top is big end down's truncated cone structure, the storehouse top comprises a plurality of fan-shaped prefabricated plate along the circumference concatenation, fan-shaped prefabricated plate divide into and takes fan-shaped prefabricated plate earlier and take fan-shaped prefabricated plate afterwards, fan-shaped prefabricated plate's bottom has the bottom of taking the ring beam down and connects the edge, fan-shaped prefabricated plate's top has the top of taking the ring beam on the prefabrication and connects the edge, the ring beam inboard is equipped with and is used for being connected along supporting complex indent support step with the bottom, the periphery of the prefabricated ring beam of fitting with a contraceptive ring is offered and is supplied each top to connect along the ring beam interface that goes up that stretches into, wherein with taking the ring beam interface that the fan-shaped prefabricated plate corresponds earlier and be less than the ring beam.

2. The fabricated roof structure of claim 1, wherein: the number of the first-lapping fan-shaped prefabricated plates is at least three, the first-lapping fan-shaped prefabricated plates are uniformly arranged at intervals along the circumferential direction, and at least two later-lapping fan-shaped prefabricated plates are arranged between adjacent first-lapping fan-shaped prefabricated plates.

3. The fabricated roof structure of claim 1, wherein: and a sealing structure is arranged between the fan-shaped precast slab and the concave supporting step as well as between the corresponding upper ring beam connector.

4. The fabricated roof structure of claim 3, wherein: the sealing structure is a water-swelling rubber strip.

5. The fabricated roof structure of claim 1, wherein: the lower ring beam is a cast-in-place lower ring beam.

6. The fabricated roof structure of claim 1 ~ 5, wherein a grouting slot is formed between adjacent fan-shaped prefabricated panels and extends along the length of the joint between the adjacent fan-shaped prefabricated panels, and the grouting slot spans the adjacent fan-shaped prefabricated panels, is of a big belly cavity structure with a small top and a big bottom, and is filled with joint slurry.

7. The assembling method of the assembled bin top structure is characterized in that: the method comprises the following steps of hoisting a first-built sector-shaped precast slab, hoisting the bottom of the first-built sector-shaped precast slab to be connected with an inward-concave supporting step supported on a lower ring beam along a supporting edge, keeping an included angle between the first-built sector-shaped precast slab and the horizontal direction as alpha, hoisting a prefabricated upper ring beam to the middle position of each first-built sector-shaped precast slab, enabling the top connection edge of the first-built sector-shaped precast slab to be downwards turned into a corresponding upper ring beam connector of the prefabricated upper ring beam, then, enabling the prefabricated lower ring beam to fall down, clamping the first-built sector-shaped precast slab and the corresponding upper ring beam connector, and enabling the included angle between the first-built sector-shaped precast slab and the; thirdly, after the hoisting, the fan-shaped precast slabs are erected to the corresponding positions, the bottom connecting edges of the later erected fan-shaped precast slabs are supported on the concave supporting steps of the lower ring beam, the top connecting edges of the later erected fan-shaped precast slabs are turned down to the corresponding upper ring beam interfaces of the prefabricated upper ring beam, and the upper ring beam interfaces corresponding to the first erected fan-shaped precast slabs are lower than the upper ring beam interfaces corresponding to the later erected fan-shaped precast slabs; and fourthly, pouring slurry into the grouting notches of the adjacent fan-shaped prefabricated plates, and solidifying the slurry to form joint slurry.

8. The method of assembling an assembled roof structure of claim 7, wherein: in the first step, will take fan-shaped prefabricated plate earlier and lift by crane to the assigned position through lifting by crane equipment, it is alpha to keep taking fan-shaped prefabricated plate earlier and the contained angle of horizontal direction through interim strutting arrangement, interim strutting arrangement is including being fixed in the device support on the girth down, be connected with the rope on the device support, the rope links to each other with the upper end of taking fan-shaped prefabricated plate earlier in order to keep taking fan-shaped prefabricated plate earlier and the contained angle of horizontal direction earlier as alpha, in the second step, loosen the rope, the top of realizing taking fan-shaped prefabricated plate earlier is connected and is followed the lower upset to the ring beam interface on the correspondence of prefabricated ring beam.

9. The method of assembling an assembled roof structure of claim 7, wherein: and in the third step, the rear-lap fan-shaped prefabricated plates are hoisted to corresponding positions through hoisting equipment, the rear-lap fan-shaped prefabricated plates are supported through a temporary supporting device, the temporary supporting device comprises a device support fixed on the lower ring beam, a rope is connected onto the device support, the rope is connected with the upper ends of the rear-lap fan-shaped prefabricated plates, the rope is loosened, and the top connection edges of the rear-lap fan-shaped prefabricated plates are downwards overturned into corresponding upper ring beam interfaces of the prefabricated upper ring beam.

Technical Field

The invention relates to the field of design and construction of a warehouse roof structure of a warehouse building, in particular to an assembled warehouse roof structure of a circular warehouse and an assembling method thereof.

Background

At present, the warehousing structure forms of China are various and have characteristics. The round storage bin has the advantages of small floor area, large effective volume in the bin, reasonable structural stress, good tightness, strong earthquake resistance and the like, has better application value and is more suitable for the national conditions of China. But at present, most buildings are cast-in-place structures. The traditional cast-in-place structure needs a large amount of wet operation and field operation, needs a certain amount of templates and supports, is complex in operation, difficult in quality guarantee, long in construction period, large in influence of seasons and weather on the progress and quality of the project, large in resource consumption and large in influence on the environment. The above problems are even more pronounced with respect to warehouse buildings. During construction of the existing structure of the bin top structure, such as the shell wall, the upper ring beam, the lower ring beam and the like, a large number of supporting scaffold frames need to be erected, and the conical shell inclined wall template, the upper ring beam template and the platform template are formed at one time. The toper conch wall has certain inclination, need install double-deck template in the work progress, and the concrete flows and the difficulty of vibrating that slides downwards under the action of gravity when pouring, and construction quality such as toper conch wall thickness and concrete density is difficult to guarantee, easily leads to concrete protection layer fracture and then tears the waterproof layer in the use, influences storage structure normal use.

The prefabricated concrete structure has many advantages over the conventional building structure, and the members can be industrially produced in a factory to ensure the quality. The construction site can be directly installed, the construction is convenient and fast, the construction period is shortened, and the working conditions and labor intensity of workers are superior to those of a cast-in-place concrete structure. The variety and the quantity of raw materials required in the construction process are less, resources are saved, greenness and environmental friendliness are reflected, the workload of a construction site is reduced, too many workers are not needed, the construction safety of the site is ensured, and manpower and material resources are reduced.

Based on the problems of the cast-in-place warehouse building and the advantages of the fabricated building, the invention provides a warehouse top structure of a fabricated concrete circular warehouse.

Disclosure of Invention

The invention aims to provide an assembled bin top structure of a circular storage bin, which aims to solve the technical problems of environmental pollution, large field workload and long working time caused by in-situ pouring of the bin top structure in the prior art; the invention also aims to provide an assembly method of the assembled silo roof structure.

In order to solve the technical problems, the technical scheme of the assembled bin top structure provided by the invention is as follows:

an assembled warehouse top structure of a circular storage warehouse comprises a lower ring beam, a prefabricated upper ring beam and a warehouse top arranged between the lower ring beam and the prefabricated upper ring beam, wherein the warehouse top is of a truncated cone structure with a small top and a big bottom, the warehouse top is formed by a plurality of fan-shaped precast slabs spliced along the circumferential direction, the fan-shaped precast slabs are divided into a fan-shaped precast slab firstly and a fan-shaped precast slab secondly, the bottom of each fan-shaped precast slab is provided with a bottom connecting edge facing the lower ring beam, the top of each fan-shaped precast slab is provided with a top connecting edge facing the prefabricated upper ring beam, the inner side of the lower ring beam is provided with an inwards concave supporting step matched with the bottom connecting edge in a supporting way, the periphery of the prefabricated upper ring beam is provided with an upper ring beam connector for, the upper ring beam connector corresponding to the first-lap fan-shaped prefabricated plate is lower than the upper ring beam connector corresponding to the later-lap fan-shaped prefabricated plate, and the height of the upper ring beam connector is larger than the thickness of the top connecting edge.

The number of the first-lapping fan-shaped prefabricated plates is at least three, the first-lapping fan-shaped prefabricated plates are uniformly arranged at intervals along the circumferential direction, and at least two later-lapping fan-shaped prefabricated plates are arranged between adjacent first-lapping fan-shaped prefabricated plates.

And a sealing structure is arranged between the fan-shaped precast slab and the concave supporting step as well as between the corresponding upper ring beam connector.

The sealing structure is a water-swelling rubber strip.

The lower ring beam is a cast-in-place lower ring beam.

Be equipped with the grout notch that spanes adjacent fan-shaped prefabricated plate that extends along adjacent fan-shaped prefabricated plate seam length between the adjacent fan-shaped prefabricated plate, the grout notch is big tripe cavity structure big end down, has pour the seam slurry in the grout notch.

The technical scheme of the assembly method provided by the invention is as follows:

the assembly method of the assembled bin top structure comprises the following steps of hoisting a first-built sector prefabricated slab, connecting and supporting the bottom of the first-built sector prefabricated slab on an inward concave supporting step of a lower ring beam along the connecting edge, keeping the included angle between the first-built sector prefabricated slab and the horizontal direction as alpha, hoisting a prefabricated upper ring beam to the middle position of each first-built sector prefabricated slab, enabling the top connecting edge of the first-built sector prefabricated slab to be downwards turned into a corresponding upper ring beam connector of the prefabricated upper ring beam, then, enabling the prefabricated lower ring beam to fall down, clamping the first-built sector prefabricated slab and the corresponding upper ring beam connector, and enabling the included angle between the first-built sector prefabricated slab and the horizontal direction to be beta and alpha to be larger than beta; thirdly, after the hoisting, the fan-shaped precast slabs are erected to the corresponding positions, the bottom connecting edges of the later erected fan-shaped precast slabs are supported on the concave supporting steps of the lower ring beam, the top connecting edges of the later erected fan-shaped precast slabs are turned down to the corresponding upper ring beam interfaces of the prefabricated upper ring beam, and the upper ring beam interfaces corresponding to the first erected fan-shaped precast slabs are lower than the upper ring beam interfaces corresponding to the later erected fan-shaped precast slabs; and fourthly, pouring slurry into the grouting notches of the adjacent fan-shaped prefabricated plates, and solidifying the slurry to form joint slurry.

In the first step, will take fan-shaped prefabricated plate earlier and lift by crane to the assigned position through lifting by crane equipment, it is alpha to keep taking fan-shaped prefabricated plate earlier and the contained angle of horizontal direction through interim strutting arrangement, interim strutting arrangement is including being fixed in the device support on the girth down, be connected with the rope on the device support, the rope links to each other with the upper end of taking fan-shaped prefabricated plate earlier in order to keep taking fan-shaped prefabricated plate earlier and the contained angle of horizontal direction earlier as alpha, in the second step, loosen the rope, the top of realizing taking fan-shaped prefabricated plate earlier is connected and is followed the lower upset to the ring beam interface on the correspondence of prefabricated ring beam.

And in the third step, the rear-lap fan-shaped prefabricated plates are hoisted to corresponding positions through hoisting equipment, the rear-lap fan-shaped prefabricated plates are supported through a temporary supporting device, the temporary supporting device comprises a device support fixed on the lower ring beam, a rope is connected onto the device support, the rope is connected with the upper ends of the rear-lap fan-shaped prefabricated plates, the rope is loosened, and the top connection edges of the rear-lap fan-shaped prefabricated plates are downwards overturned into corresponding upper ring beam interfaces of the prefabricated upper ring beam.

The invention has the beneficial effects that: during assembly, the fan-shaped prefabricated plates are lifted, the bottom connecting edges of the fan-shaped prefabricated plates are supported on the concave supporting steps of the lower ring beam, then the prefabricated upper ring beam is lifted to the middle position of each fan-shaped prefabricated plate, the top connecting edges of the fan-shaped prefabricated plates are turned downwards to the corresponding upper ring beam connector of the prefabricated upper ring beam, the prefabricated lower ring beam falls, the fan-shaped prefabricated plates are clamped with the corresponding upper ring beam connector, and the prefabricated upper ring beam provides a foundation support for the subsequent fan-shaped prefabricated plates; after hoisting, overlapping the fan-shaped precast slabs to corresponding positions, supporting the bottom connecting edges of the later overlapped fan-shaped precast slabs on the concave supporting steps of the lower ring beam, turning down the top connecting edges of the later overlapped fan-shaped precast slabs to the corresponding upper ring beam interfaces of the prefabricated upper ring beam, and making the upper ring beam interface corresponding to the first overlapped fan-shaped precast slabs lower than the upper ring beam interface corresponding to the later overlapped fan-shaped precast slabs; and fourthly, pouring slurry into the grouting notches of the adjacent fan-shaped prefabricated plates, and solidifying the slurry to form joint slurry. The fan-shaped precast slabs and the prefabricated upper ring beams are factory precast pieces, cast-in-place is not needed, wet operation is few in the whole cabin top assembling process, assembling efficiency is high, and pollution to the environment in the cabin top assembling process is reduced.

Drawings

FIG. 1 is a state view of the use of one embodiment of the fabricated roof structure of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic structural view of an upper ring beam interface in the prefabricated upper ring beam of FIG. 1;

FIG. 4 is a sectional view taken along line A-A of FIG. 3;

FIG. 5 is a sectional view taken along line B-B of FIG. 3;

FIG. 6 is a schematic view of the mating of the walls of the silo of FIG. 1 with the lower ring beam;

FIG. 7 is an enlarged view at C of FIG. 6;

FIG. 8 is a schematic view of the hoisting state of the prefabricated plate with the sector shape firstly;

FIG. 9 is a schematic view showing a state where the pre-lap fan-shaped prefabricated panels are temporarily held by the temporary fixing means;

fig. 10 is a schematic view showing a state where the top connection edge of the pre-lap fan-shaped precast slab is extended into the upper ring beam joint of the prefabricated upper ring beam by the temporary fixing means;

FIG. 11 is a schematic view of the prefabricated upper ring beam of FIG. 10 after being lowered;

FIG. 12 is an enlarged view at D of FIG. 11;

FIG. 13 is a schematic view showing a state where the top connection edge of the rear lap sector-shaped precast slab is temporarily fixed to extend into the upper ring beam joint of the prefabricated upper ring beam;

FIG. 14 is a schematic view of the matching of the rear lap fan-shaped precast slab and the precast upper ring beam;

FIG. 15 is a schematic view showing the construction of the fan-shaped prefabricated panel of FIG. 1;

FIG. 16 is a side view of FIG. 15;

FIG. 17 is a schematic view showing the fitting of the fan-shaped precast slab to the prefabricated upper ring beam according to the present invention;

FIG. 18 is a schematic view showing the fitting of two adjacent fan-shaped prefabricated panels according to the present invention.

Detailed Description

An embodiment of an assembled roof structure of a circular storage bin is shown in fig. 1 ~ 18, and comprises a lower ring beam 3, a prefabricated upper ring beam 1 and a roof 2 arranged between the lower ring beam and the prefabricated upper ring beam, wherein the lower ring beam in the embodiment is a cast-in-place lower ring beam, the roof 2 is a conical structure with a small upper part and a large lower part, the roof is composed of a plurality of fan-shaped prefabricated plates sequentially spliced along the circumferential direction, the fan-shaped prefabricated plates are divided into a fan-shaped prefabricated plate 5 which is overlapped firstly and a fan-shaped prefabricated plate 6 which is overlapped later, in the embodiment, the fan-shaped prefabricated plates 5 which are overlapped firstly have four fan-shaped prefabricated plates 5 which are arranged at intervals along the circumferential direction, four fan-shaped prefabricated plates 6 which are overlapped later are arranged between two adjacent fan-shaped prefabricated plates 5 which are overlapped firstly and a fan-shaped prefabricated plates 5 which are overlapped firstly, the fan-shaped prefabricated plates 6 which are overlapped later, the bottom connecting edges 5-2 which face the lower ring beam, the top connecting edges 5-1 which face the prefabricated plates which face the prefabricated upper ring beam which is overlapped downwards, the fan-shaped prefabricated plates which are overlapped firstly and the fan-shaped prefabricated plates which are overlapped later, the top connecting edges 5-1-shaped prefabricated plates which are overlapped later, the fan-shaped prefabricated plates which are overlapped later, the top connecting edges of the fan-shaped prefabricated plates which are overlapped later, the fan-shaped prefabricated plates 7-shaped prefabricated plates which are overlapped later, the top connecting edges of the fan-shaped prefabricated plates which are overlapped later, the upper ring slab-shaped prefabricated plates which are overlapped later, the top connecting edges of the fan-shaped prefabricated plates which are overlapped later, the fan-shaped prefabricated plates which are overlapped upper ring slab-.

Set up about between the adjacent fan-shaped prefabricated plate along the adjacent fan-shaped prefabricated plate seam length extend span the grout notch of adjacent fan-shaped prefabricated plate, the grout notch is big tripe chamber structure big end down, has pour joint slurry 21 in the grout notch.

When in manufacturing, a lower ring beam is cast in place at the upper end of a manufactured bin wall 4, a temporary supporting device 12 is fixed on a lower ring beam 3 through bolts and the like, the temporary supporting device 12 comprises a device bracket fixed on the lower ring beam, a rope is connected on the device bracket, the device bracket comprises a vertical frame 12-2 and a transverse frame 12-3, the rope 12-1 is connected on the device bracket, as shown in figure 1, a hoisting device 11, such as a crane, is used for hoisting and moving a first-lapped sector-shaped prefabricated plate to a specified position, the bottom of the first-lapped sector-shaped prefabricated plate is connected and supported on an inwards concave supporting step of the lower ring beam, then the upper end of the first-lapped sector-shaped prefabricated plate is connected with the rope, the included angle between the first-lapped sector-shaped prefabricated plate and the horizontal direction is kept to be alpha through the rope, at the moment, the connection between the hoisting device and the first-lapped sector-shaped prefabricated plate can be released, an operator loosens a rope to enable the top connecting edge corresponding to the upper end of the first-lap fan-shaped precast slab to downwards turn into the upper ring beam interface of the first-lap fan-shaped precast slab of the prefabricated upper ring beam, the height of the prefabricated upper ring beam is reduced, the top connecting edge of the first-lap fan-shaped precast slab is supported on the upper side wall of the upper ring beam interface of the first-lap fan-shaped precast slab, as shown in figure 11, the prefabricated upper ring beam is clamped, the position of the prefabricated upper ring beam is fixed at the moment, vertical bolts penetrate between the bottom connecting edge of the first-lap fan-shaped precast slab and the lower ring beam and between the top connecting edge of the first-lap fan-shaped precast slab and the prefabricated upper ring beam to fix the first-lap fan-shaped precast slab, the lower ring beam and the prefabricated upper ring beam into an integral structure, the connection between hoisting equipment and the prefabricated upper ring beam can be loosened, then the fan-shaped precast slab is lapped according to similar steps, the top connecting edge, as shown in fig. 14. Connect along the downside at the top of taking fan-shaped prefabricated plate earlier and take between the fan-shaped prefabricated plate collar rail interface earlier, the top of taking fan-shaped prefabricated plate later is connected along and is taken after and to support the steel block on the fan-shaped prefabricated plate collar rail interface on the upper ring beam, take fan-shaped prefabricated plate earlier and take fan-shaped prefabricated plate surface highly uniform after, connect along and between the lower ring beam through the bottom of taking fan-shaped prefabricated plate later, the top of taking fan-shaped prefabricated plate later is connected along and is worn to adorn vertical bolt between the collar rail in the prefabrication, will take fan-shaped prefabricated plate after with and encircle the roof beam with lower ring beam and prefabricate and fix into overall structure, grout is pour to the grout notch.

An embodiment of the method of assembling the fabricated silo top structure is shown in fig. 1 ~ 18. the specific structure of the fabricated silo top structure is the same as the fabricated silo top structure embodiment described above, and will not be described in detail herein.

The method comprises the following steps of hoisting a first-built sector precast slab 5, hoisting the bottom of the first-built sector precast slab 5 to be connected with an inward concave supporting step 9 supported on a lower ring beam 3 along the connecting edge, keeping the included angle between the first-built sector precast slab 5 and the horizontal direction as alpha, hoisting a prefabricated upper ring beam 1 to the middle position of each first-built sector precast slab, enabling the top of the first-built sector precast slab to be connected with the corresponding upper ring beam connector of the prefabricated upper ring beam along the downward turning direction, then, enabling the prefabricated lower ring beam to fall down, clamping the first-built sector precast slab and the corresponding upper ring beam connector, enabling the included angle between the first-built sector precast slab and the horizontal direction to be beta, and enabling alpha to be larger than beta, and fixing the first-built sector precast slab, the prefabricated upper ring beam and the lower ring beam into; thirdly, lifting the fan-shaped prefabricated plates 6 to corresponding positions, connecting the bottoms of the later-lifted fan-shaped prefabricated plates to be supported on the concave supporting steps of the lower ring beam along the connecting edges, turning down the top connecting edges of the later-lifted fan-shaped prefabricated plates to corresponding upper ring beam interfaces of the prefabricated upper ring beam, enabling the upper ring beam interfaces corresponding to the first-lifted fan-shaped prefabricated plates to be lower than the upper ring beam interfaces corresponding to the later-lifted fan-shaped prefabricated plates, and fixing the later-lifted fan-shaped prefabricated plates, the lower ring beam and the prefabricated upper ring beam into an integral structure through bolts; and fourthly, pouring slurry into the grouting notches of the adjacent fan-shaped prefabricated plates, and solidifying the slurry to form joint slurry 21.

In the first step, will take fan-shaped prefabricated plate earlier and lift by crane to the assigned position through lifting by crane equipment, it is alpha to keep taking fan-shaped prefabricated plate earlier and the contained angle of horizontal direction through interim strutting arrangement 12, interim strutting arrangement is including being fixed in the device support on the girth beam down, be connected with the rope on the device support, the rope links to each other with the upper end of taking fan-shaped prefabricated plate earlier in order to keep taking fan-shaped prefabricated plate earlier and the contained angle of horizontal direction earlier as alpha, in the second step, loosen the rope, the top of realizing taking fan-shaped prefabricated plate earlier is connected and is followed the lower upset to the ring beam interface on the correspondence of prefabricating the ring.

And in the third step, the fan-shaped prefabricated plates are backwards erected to corresponding positions through hoisting equipment, the fan-shaped prefabricated plates are backwards erected and supported through a temporary supporting device, the temporary supporting device comprises a device support fixed on the lower ring beam, a rope is connected onto the device support, the rope is connected with the upper ends of the fan-shaped prefabricated plates, the rope is loosened, and the top connection edges of the fan-shaped prefabricated plates are backwards erected and downwards overturned into corresponding upper ring beam interfaces of the prefabricated upper ring beam. In other embodiments of the present invention, the temporary fixing device may not be provided, and at this time, the installation may be realized by matching two hoisting devices, for example, one hoisting device hoists the prefabricated upper ring beam, the other hoisting device hoists the fan-shaped prefabricated slab, and the fan-shaped prefabricated slab that is hoisted by the other hoisting device is connected with the prefabricated upper ring beam by matching the two hoisting devices.