CN111236688A

CN111236688A - Liftable construction platform for reinforcing circular silo in vitro

Info

Publication number: CN111236688A
Application number: CN202010150849.2A
Authority: CN
Inventors: 毛健伟; 杨贵宝; 王顺根; 林光烈
Original assignee: Acre Coking and Refractory Engineering Consulting Corp MCC
Current assignee: Acre Coking and Refractory Engineering Consulting Corp MCC
Priority date: 2020-03-06
Filing date: 2020-03-06
Publication date: 2020-06-05

Abstract

The invention relates to a liftable construction platform for reinforcing a circular silo in vitro, which comprises a top cantilever beam, a main body hanger, a branch hanger, an outer ring side wall support, an inner ring side wall support, a walkway plate, a suspension steel cable, a diagonal steel cable, a lifting ring hook and a lifting device, wherein the main body hanger is arranged on the top of the circular silo; the inner end of the top cantilever beam is provided with a balance weight, the outer end of the top cantilever beam is connected with the upper end of a suspension steel cable, and the lower end of the suspension steel cable is connected with a lifting device; the inner sides of the main hanging bracket and the branch hanging bracket are in supporting connection through the inner ring side wall, the outer sides of the main hanging bracket and the branch hanging bracket are in supporting connection through the outer ring side wall, and the outer sides of the circular silos jointly form an annular frame; the top, the middle and the bottom of the annular frame are respectively provided with a walkway plate; the middle parts of the main hanging bracket and the branch hanging bracket on the inner side of the annular frame are respectively provided with a hanging ring hook for hanging the steel template. The construction method of the floor type steel pipe scaffold replaces the traditional construction method of the floor type steel pipe scaffold, can save construction investment, reduce labor intensity and effectively improve construction efficiency.

Description

Liftable construction platform for reinforcing circular silo in vitro

Technical Field

The invention relates to the technical field of special structure reinforcing construction, in particular to a liftable construction platform for reinforcing a circular silo in vitro.

Background

In the industrial field, circular silos for storing raw materials or finished products are common structural forms, and are particularly more commonly applied to the storage of materials such as coal, steel, grain and the like. Due to the reasons of insufficient design capability, construction defects, over-age of use and the like, the situation that the bearing capacity of the circular silo structure is insufficient or the width of cracks exceeds the standard sometimes occurs.

In order to meet the requirements of safe structure and durable use, the circular silo with the above conditions is generally treated by adopting an external concrete reinforcement mode under the condition of not influencing production and operation. The most common construction method is to erect a floor type steel pipe scaffold outside the silo from the ground to the top of the silo, and then perform reinforcement construction within the range of erecting the scaffold. For a large concrete silo, the building height of a scaffold needs to be more than 50 meters, and the construction investment is large; particularly, the construction project of continuously reinforcing a large batch of silos with the same scale and the same reinforcing conditions adopts a floor type steel pipe scaffold mode to organize the construction, and the construction investment is obviously increased; and because scaffold frame and template dismouting cycle are longer, working strength is big, has influenced the efficiency of construction.

According to the structural characteristics of the circular silo, if a construction platform which can be lifted and reused is developed, the construction investment can be greatly reduced, and the construction efficiency is improved.

Disclosure of Invention

The invention provides a liftable construction platform for reinforcing a circular silo in vitro, which replaces the traditional construction method of a floor type steel pipe scaffold, can save construction investment, reduce labor intensity and effectively improve construction efficiency.

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

a lifting construction platform for reinforcing a circular silo in vitro comprises a top cantilever beam, a main body hanger, a branch hanger, an outer ring side wall support, an inner ring side wall support, a walkway plate, a suspension steel cable, a diagonal steel cable, a lifting ring hook and a lifting device; the top cantilever beams are arranged along the circumferential direction of the circular silo, each top cantilever beam is arranged along the radial direction of the circular silo, the inner end of each top cantilever beam is provided with a balance weight, the outer end of each top cantilever beam is connected with the upper end of a suspension steel cable, the lower end of each suspension steel cable is connected with a lifting device, and the lifting device is arranged at the upper part of the main body hanger; the main body hanging bracket and the branch hanging brackets are of frame structures, the branch hanging brackets are arranged between every two adjacent main body hanging brackets, the inner sides of the main body hanging brackets and the branch hanging brackets are in supporting connection through inner ring side walls, the outer sides of the main body hanging brackets and the branch hanging brackets are in supporting connection through outer ring side walls, and the outer sides of the circular silos jointly form an annular frame; the top, the middle and the bottom of the annular frame are respectively provided with a walkway plate; diagonal steel cables are respectively arranged between the main hanging bracket and the branch hanging brackets on the inner side and the outer side of the annular frame; the middle parts of the main hanging bracket and the branch hanging bracket on the inner side of the annular frame are respectively provided with a hanging ring hook for hanging a steel template; the upper roller wheels are arranged on the upper parts of the main body hanging bracket and the branch hanging bracket on the inner side of the annular frame, and the lower roller wheels are arranged on the lower parts of the main body hanging bracket and the branch hanging bracket.

The main body hanger is of a frame structure shaped like a Chinese character 'mu', the lifting device is arranged in the uppermost layer space, the inner ring side wall support and the outer ring side wall support are respectively arranged corresponding to the inner side and the outer side of the lower two-layer space, and the walkway plates are respectively and correspondingly arranged on the bottom layer cross beam, the second layer cross beam and the third layer cross beam from bottom to top.

The branch hanger is of a frame structure shaped like a Chinese character 'ri', the inner ring side wall support and the outer ring side wall support are respectively arranged on the inner side and the outer side of the branch hanger, and the walkway plates are respectively arranged on the three layers of cross beams.

The walkway plate is provided with a profile steel frame and has uniform dimension specifications.

The outer ring side wall support consists of a profile steel frame, horizontal railings and cross steel diagonal braces, wherein a plurality of horizontal railings are arranged in the profile steel frame along the height direction, and the cross steel diagonal braces are arranged in the profile steel frame along 2 diagonal directions; the inner ring side wall support consists of a section steel frame and crossed steel inclined struts, and the section steel frame is provided with the crossed steel inclined struts along 2 diagonal directions; the inner ring side wall support, the outer ring side wall support and each component in the steel template have uniform dimension specifications respectively.

The inclined pull steel cable is an inclined pull steel cable with a turn buckle.

The hanging ring hook is a hanging ring hook with a turn buckle.

Compared with the prior art, the invention has the beneficial effects that:

1) the conventional construction method adopting the floor type steel pipe scaffold needs to be erected from bottom to top in the whole process, the scaffold needs to be erected from the ground to top even if the upper part of the silo is only locally reinforced, and the using amount of scaffold materials is large; the liftable construction platform is only provided with two layers of steel structure frames, so that the material consumption is greatly saved;

2) in the conventional construction method adopting the floor type steel pipe scaffold, the construction template needs to be manually disassembled, carried and installed repeatedly, the labor intensity of workers is high, and the working efficiency is low; the steel templates are directly hung on the lifting platform, so that the lifting construction platform does not need manual carrying, and only connecting bolts between the steel templates need to be loosened or screwed when the lifting construction platform is disassembled and installed, so that the working strength is greatly reduced, and the working efficiency is improved.

Drawings

FIG. 1 is a plan view of the top suspension beam and suspension support points of the present invention.

Fig. 2 is a plan layout view of the liftable construction platform of the invention.

Fig. 3 is an expansion view of the outer elevation of the liftable construction platform.

Fig. 4 is an inside elevation development view of the liftable construction platform.

FIG. 5 is a transverse cross-sectional view of the ring frame of the present invention at the body hanger.

FIG. 6 is a transverse cross-sectional view of the ring frame of the present invention at a drop hanger.

In the figure: 1. circular silo 2, concrete reinforcing layer 3, top cantilever beam 4, main hanger 5, branch hanger 6, outer ring side wall support 7, inner ring side wall support 8, steel template 9, walkway plate 10, suspension steel cable 11, lifting device 12, diagonal steel cable 13, lower roller 14, upper roller 15, lifting ring hook

Detailed Description

The following further describes embodiments of the present invention with reference to the accompanying drawings:

as shown in fig. 1-6, the liftable construction platform for reinforcing a circular silo in vitro comprises a top cantilever beam 3, a main body hanger 4, a branch hanger 5, an outer ring side wall support 6, an inner ring side wall support 7, a walkway plate 9, a suspension steel cable 10, a diagonal steel cable 12, a lifting ring hook 15 and a lifting device 11; the top cantilever beams 3 are arranged along the circumferential direction of the circular silo 1, each top cantilever beam 3 is arranged along the radial direction of the circular silo 1, the inner end of each top cantilever beam 3 is provided with a balance weight, the outer end of each top cantilever beam is connected with the upper end of a suspension steel cable 10, the lower end of each suspension steel cable 10 is connected with a lifting device 11, and each lifting device 11 is arranged at the upper part of the main body hanger 4; the main body hangers 4 and the branch hangers 5 are of frame structures, the branch hangers 5 are arranged between every two adjacent main body hangers 4, the main body hangers 4 are connected with the inner sides of the branch hangers 5 through inner ring side wall supports 7, the main body hangers 4 are connected with the outer sides of the branch hangers 5 through outer ring side wall supports 6, and the outer sides of the circular silo 1 form an annular frame together; the top, the middle and the bottom of the annular frame are respectively provided with a walkway plate 9; diagonal steel cables 12 are respectively arranged between the main body hanging bracket 4 and the branch hanging brackets 5 at the inner side and the outer side of the annular frame; the middle parts of the main hanger 4 and the branch hangers 5 on the inner side of the annular frame are respectively provided with a hanging ring hook 15 for hanging the steel template 8; the main body hanger 4 and the branch hanger 5 inside the ring frame are provided with upper rollers 14 at the upper part and lower rollers 13 at the lower part.

The main body hanger 4 is of a frame structure shaped like a Chinese character 'mu', the lifting device 11 is arranged in the uppermost layer space, the inner ring side wall support 7 and the outer ring side wall support 6 are respectively arranged corresponding to the inner side and the outer side of the lower layer space, and the walkway plate 9 is correspondingly arranged on the bottom layer cross beam, the second layer cross beam and the third layer cross beam from bottom to top.

The branch hanger 5 is of a frame structure shaped like a Chinese character 'ri', the inner ring side wall support 7 and the outer ring side wall support 6 are respectively arranged on the inner side and the outer side of the branch hanger 5, and the walkway plates 9 are respectively arranged on the three layers of cross beams.

The walkway plate 9 is provided with a profile steel frame and has uniform size specification.

The outer ring side wall support 6 consists of a section steel frame, horizontal railings and cross steel diagonal braces, wherein a plurality of horizontal railings are arranged in the section steel frame along the height direction, and the cross steel diagonal braces are arranged in the section steel frame along 2 diagonal directions; the inner ring side wall support 7 consists of a section steel frame and crossed steel inclined struts, and the section steel frame is provided with the crossed steel inclined struts along 2 diagonal directions; the inner ring side wall support 7, the outer ring side wall support 6 and the steel moulding plate 8 have uniform dimension specifications respectively.

The inclined pull steel cable 12 is an inclined pull steel cable with a turn buckle.

The lifting ring hook 15 is a lifting ring hook with a turn buckle.

The invention relates to a liftable construction platform, wherein all the weight of the liftable construction platform is suspended and supported by a plurality of top cantilever beams 3 arranged on a circular silo 1; the lifting construction platform is connected with the main body hanger 4 through a lifting device 11 through a suspension steel cable 10 for integral lifting; liftable construction platform mainly has two-layer working face, and lower floor's working face is responsible for the installation of steel form 8, and upper strata working face is responsible for work such as reinforcement and construction face clearance, and the construction of 2 layers of working faces does not interfere with each other, can go on simultaneously.

Each component of the liftable construction platform adopts standardized design, and the liftable construction platform is convenient to disassemble, assemble and reuse by adopting a size specification and a bolt connection mode. In order to ensure the stable and smooth lifting process, the platform is also provided with members such as a diagonal steel cable 12, an upper roller 14, a lower roller 13 and the like, the main body hanging bracket 4 and the branch hanging brackets 5 are connected through an inner ring side wall support 7 with a diagonal support, an outer ring side wall support 6 and the diagonal steel cable 12, so that the integral vertical rigidity of the platform is ensured, the walkway plate 9 with a profile steel frame is adopted, and the main body hanging brackets 4 and the branch hanging brackets 5 are connected through bolts, so that the integral integrity of the plane of the platform is effectively improved; the upper parts and the lower parts of the main body hanging bracket 4 and the branch hanging bracket 5 are both provided with rollers, and the auxiliary supporting effect is achieved when the platform is lifted, so that the platform is smoothly and stably operated, and the platform is ensured to be safely and stably operated. In the working process, part of construction materials, the whole steel formwork, part of operators and the like can lift along with the platform, particularly, the steel formwork 8 is hung on the inner side of the platform through the hanging ring hook 15 with the turn buckle and can lift along with the platform, the disassembly, the assembly and the adjustment are convenient, manual carrying is not needed, the labor intensity of workers is greatly reduced, and the working efficiency is obviously improved.

As shown in fig. 1, is a plan layout view of the top suspension beam and the suspension support points. The top cantilever beam 3 with the balance weight is uniformly arranged at the top of the circular silo 1 (concrete silo) along the circumferential direction of the circular silo 1, and the size of the balance weight on the top cantilever beam 3 is determined by calculation according to the conditions of all loads of the liftable construction platform, the position of a supporting point of the top cantilever beam 3 and the like.

As shown in fig. 2, it is a plan view of a liftable construction platform. From the plane overlook, main part gallows 4 and branch gallows 5 adopt bolted connection with outer lane lateral wall support 6, inner circle lateral wall support 7 and walk the guidance tape 9, form the annular platform structure of confined ring, and steel form 8 is located between circular silo 1 and the annular closed platform, forms annular enclosed construction, and each module steel form 8 of constituteing annular steel form adopts standardized size, adopts bolted connection between each module steel form 8.

As shown in fig. 3, it is an external elevation development view of the liftable construction platform. The upper end of a suspension steel cable 10 is anchored at the outer end part of the top cantilever beam 3, the lower end of the suspension steel cable 10 is locked on a lifting device 11 at the upper part of a main body hanger 4, an outer ring side wall support 6 is made of a section steel frame, a cross steel diagonal brace and a horizontal railing, and all components are standardized components with uniform dimension and specification; the outer sides of the main body hanging bracket 4 and the branch hanging bracket 5 are fixedly connected through the outer ring side wall support 6 and the bolt, and are obliquely locked through the inclined pull steel cable 12 with the turn buckle, so that the vertical overall stability of the platform is improved. When the platform is lifted, the lifting devices 11 on the upper parts of the main body hangers 4 must act synchronously to ensure uniform stress of the suspension cables 10 and stable operation of the platform.

As shown in fig. 4, it is an inside elevation development view of the liftable construction platform. The inner ring side wall support 7 is made of a profile steel frame and crossed steel diagonal braces, and all the components are standardized components with uniform size and specification; the inner sides of the main body hanging bracket 4 and the branch hanging bracket 5 are fixedly connected through the inner ring side wall support 7 and the bolt, and are obliquely locked through the inclined pull steel cable 12 with the turn bolts, so that the vertical overall stability of the platform is improved.

As shown in fig. 5, is a cross-sectional view of the ring frame at the body hanger 4. The main body hanger 4 is welded by profile steel to form a 3-layer steel frame structure, the top layer is used for arranging and installing the lifting device 11, and the lower 2 layers are used for personnel passing and construction operation; an upper roller 14 wheel is arranged at the upper part of the inner side of the main body hanger 4, and when the platform is lifted, the upper roller 14 can roll along the outer surface of the circular silo 1; the lower part of the inner side of the main body hanger 4 is provided with a lower roller 13 which can roll along the outer surface of the poured concrete reinforcing layer 2. The upper end of a lifting ring hook 15 with a turn buckle is welded at a proper position on the inner side of the main body hanging bracket 4, the upper end of the steel template 8 is hung on the inner side of the main body hanging bracket 4 through the lifting ring hook 15, the placing height of the steel template 8 can be accurately adjusted through the turn buckle, and the lower end of the steel template 8 is tightly close to the upper edge of the poured concrete reinforcing layer 2; before the concrete reinforcing layer 2 is poured, the steel templates 8 are locked and fixed through connecting bolts.

As shown in fig. 6, is a cross-sectional view of the ring frame at the drop hanger 5. The branch hanger 5 is welded by profile steel to form a 2-layer steel frame for personnel passing and construction operation, and the bottom elevation of the branch hanger is consistent with that of the main hanger 4; the upper rollers 14 are correspondingly arranged at the upper part of the inner side of the branch hanger 5, and the lower rollers 13 are correspondingly arranged at the lower end of the inner side of the branch hanger 5; the upper end of a lifting ring hook 15 with a turn buckle is welded at a proper position on the inner side of the branch hanger 5, the upper end of the steel template 8 is hung on the inner side of the branch hanger 5 through the lifting ring hook 15 with the turn buckle, the placing height of the steel template 8 can be accurately adjusted through the turn buckle, and the lower end of the steel template 8 is tightly close to the upper edge of the poured concrete reinforcing layer 2.

The liftable construction platform provided by the invention replaces the traditional floor type steel pipe scaffold and is used for carrying out external reinforcement construction on the circular silo. The liftable platform is flexible and convenient to disassemble and assemble, construction investment is saved, labor intensity is reduced, construction efficiency can be effectively improved, and the use effect is ideal through practice verification.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A liftable construction platform for reinforcing a circular silo in vitro is characterized by comprising a top cantilever beam, a main body hanger, a branch hanger, an outer ring side wall support, an inner ring side wall support, a walkway plate, a suspension steel cable, a diagonal steel cable, a lifting ring hook and a lifting device; the top cantilever beams are arranged along the circumferential direction of the circular silo, each top cantilever beam is arranged along the radial direction of the circular silo, the inner end of each top cantilever beam is provided with a balance weight, the outer end of each top cantilever beam is connected with the upper end of a suspension steel cable, the lower end of each suspension steel cable is connected with a lifting device, and the lifting device is arranged at the upper part of the main body hanger; the main body hanging bracket and the branch hanging brackets are of frame structures, the branch hanging brackets are arranged between every two adjacent main body hanging brackets, the inner sides of the main body hanging brackets and the branch hanging brackets are in supporting connection through inner ring side walls, the outer sides of the main body hanging brackets and the branch hanging brackets are in supporting connection through outer ring side walls, and the outer sides of the circular silos jointly form an annular frame; the top, the middle and the bottom of the annular frame are respectively provided with a walkway plate; diagonal steel cables are respectively arranged between the main hanging bracket and the branch hanging brackets on the inner side and the outer side of the annular frame; the middle parts of the main hanging bracket and the branch hanging bracket on the inner side of the annular frame are respectively provided with a hanging ring hook for hanging a steel template; the upper roller wheels are arranged on the upper parts of the main body hanging bracket and the branch hanging bracket on the inner side of the annular frame, and the lower roller wheels are arranged on the lower parts of the main body hanging bracket and the branch hanging bracket.

2. The liftable construction platform for reinforcing the circular silo in vitro as claimed in claim 1, wherein the main body hanger is a frame structure shaped like a Chinese character mu, the lifting device is arranged in the uppermost space, the inner ring side wall support and the outer ring side wall support are respectively arranged corresponding to the inner side and the outer side of the lower two-layer space, and the walkway plates are respectively arranged on the bottom layer cross beam, the second layer cross beam and the third layer cross beam from bottom to top.

3. The liftable construction platform for reinforcing the circular silo in vitro as claimed in claim 1, wherein the branch hangers are of a "herringbone" frame structure, the inner ring side wall supports and the outer ring side wall supports are respectively arranged on the inner side and the outer side of the branch hangers, and the walkway plates are respectively arranged on the three layers of cross beams.

4. A liftable construction platform for external reinforcement of circular silos according to claim 1, 2 or 3, characterized in that said walkway plates are provided with profiled steel borders and have uniform dimensional specifications.

5. The liftable construction platform for reinforcing the circular silo in vitro according to claim 1, wherein the outer ring side wall support is composed of a profile steel frame, horizontal railings and cross steel diagonal braces, a plurality of horizontal railings are arranged in the profile steel frame along the height direction, and the cross steel diagonal braces are arranged in the profile steel frame along 2 diagonal directions; the inner ring side wall support consists of a section steel frame and crossed steel inclined struts, and the section steel frame is provided with the crossed steel inclined struts along 2 diagonal directions; the inner ring side wall support, the outer ring side wall support and each component in the steel template have uniform dimension specifications respectively.

6. The liftable construction platform for external reinforcement of circular silos according to claim 1, wherein the diagonal cables are diagonal cables with turn-key bolts.

7. The liftable construction platform for external reinforcement of circular silos according to claim 1, wherein the lifting eye hook is a lifting eye hook with a turn buckle.