Double-layer composite steel support for core tube type silo top concrete structure

Abstract

The application provides a double-layer composite type steel support for a core cylinder type silo top concrete structure, relates to the technical field of silos and comprises a first layer silo top secondary beam plate formwork support platform and a second layer silo top main beam formwork support platform, wherein the first layer silo top secondary beam plate formwork support platform and the second layer silo top main beam formwork support platform are arranged above the inside of the silo; the first layer silo top secondary beam plate formwork support platform comprises a first main steel beam, a first secondary beam and a second secondary beam; the double-layer composite type steel support is adopted, the first layer silo top secondary beam plate formwork support platform formed by the first main steel beam, the first secondary beam and the second secondary beam supports the silo top secondary beam plate formwork support frame except the girder, and the second layer silo top main beam formwork support platform formed by the second main steel beam and the third secondary beam supports the silo top main beam formwork support frame, so that the load transmission is effectively dispersed, the support system is unified, and the stability is good.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of silo, in particular to a core tube type silo top concrete structure double-layer composite type steel support. BACKGROUND

[0002] The silo is a warehouse for storing bulk materials, which is divided into two categories of agricultural silo and industrial silo. The agricultural silo is used to store grain, feed and other granular and powdery materials; the industrial silo is used to store bulk materials such as coke, cement, salt and sugar. The cost of the mechanical silo is generally about 1 / 3 higher than that of the mechanical house silo, but it can shorten the loading and unloading process, reduce the operation and maintenance cost, eliminate the heavy bagging operation, and is conducive to mechanization and automation operation.

[0003] The existing engineering silo is generally supported by the floor type full-support scaffold scheme when being erected. The top beam plate formwork full-support scaffold has a high erection height and large construction load, and belongs to an ultra-dangerous large project. The erection height is generally 37m, and the lower part of the stand is supported on the funnel and conical slope surface, so the lower support stability is poor. The scaffold erection quality is greatly affected by human factors, and it is difficult to monitor and measure. The strength, rigidity and stability of the support frame cannot be guaranteed. Therefore, the core tube type silo top concrete structure double-layer composite type steel support is proposed to solve the problems in the prior art. SUMMARY

[0004] In view of the above problems, the core tube type silo top concrete structure double-layer composite type steel support is proposed. The core tube type silo top concrete structure double-layer composite type steel support effectively disperses load transmission and unifies into a support system, and has high overall strength, large rigidity, good stability and advanced technology.

[0005] To achieve the purpose of the present application, the following technical scheme is adopted: a core tube type silo top concrete structure double-layer composite type steel support, comprising a first layer silo top secondary beam plate formwork support platform and a second layer silo top main beam formwork support platform. The first layer silo top secondary beam plate formwork support platform and the second layer silo top main beam formwork support platform are both arranged above the inside of the silo. The second layer silo top main beam formwork support platform is arranged at a position above the first layer silo top secondary beam plate formwork support platform.

[0006] The first layer silo top secondary beam plate formwork support platform comprises a first main steel beam, a first secondary beam and a second secondary beam, a plurality of groups of the first main steel beams are arranged at equal angles around the center of the silo, a plurality of groups of the first secondary beams are arranged in parallel on the first main steel beams, and a plurality of groups of the second secondary beams are connected between the two groups of the first secondary beams at the inner ends.

[0007] Further improvement lies in that the second layer silo top main beam formwork support platform is used for supporting a silo top main beam formwork support frame, and the first layer silo top secondary beam plate formwork support platform is used for supporting a silo top secondary beam plate formwork support frame.

[0008] Further improvement lies in that a steel bracket is welded above the inner side of the silo, and the first layer silo top secondary beam plate formwork support platform and the second layer silo top main beam formwork support platform are both installed on the steel bracket.

[0009] Further improvement lies in that the first main steel beam is an H-shaped steel, and reinforcing steel positioning ribs are welded on the first main steel beam, the first secondary beam and the second secondary beam.

[0010] Further improvement lies in that the second main steel beam is an H-shaped steel, and reinforcing steel positioning ribs are welded on the second main steel beam and the third secondary beam.

[0011] Further improvement lies in that a steel jumping board or a wooden jumping board is laid on the first layer silo top secondary beam plate formwork support platform, and a dense-mesh safety protection net is hung below the first layer silo top secondary beam plate formwork support platform.

[0012] The present application has the following advantages:

[0013] 1. The present application adopts a double-layer composite steel support, the first layer silo top secondary beam plate formwork support platform composed of the first main steel beam, the first secondary beam and the second secondary beam is used for supporting the silo top secondary beam plate formwork support frame except the main beam, and the second layer silo top main beam formwork support platform composed of the second main steel beam and the third secondary beam is used for supporting the silo top main beam formwork support frame, so that the load is effectively dispersed and transmitted, and the support system is unified, thereby achieving high overall strength, large rigidity, good stability and advanced technology.

[0014] 2. The present application adopts a double-layer composite steel support, the steel components can be prefabricated in a factory before construction, so that the key working time is not occupied, the mechanical installation time on site is short, and the construction period is greatly shortened.

[0015] 3, the first layer silo roof secondary beam plate formwork support platform of the application is full of steel jump board or wood jump board, and the lower part is full of safety net, so that effective safety protection is achieved, and the three-dimensional intersection operation at the lower part of the cylinder is not affected, and the construction period is greatly shortened. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a side view of the application;

[0017] Figure 2 is a top view of the first layer silo roof secondary beam plate formwork support platform of the application;

[0018] Figure 3 is a top view of the second layer silo roof main beam formwork support platform of the application.

[0019] 1, the first layer silo roof secondary beam plate formwork support platform; 2, the second layer silo roof main beam formwork support platform; 3, the silo; 4, the first main steel beam; 5, the first secondary beam; 6, the second secondary beam; 7, the second main steel beam; 8, the third secondary beam; 9, the silo roof main beam formwork support frame; 10, the silo roof secondary beam plate formwork support frame. DETAILED DESCRIPTION

[0020] In order to deepen the understanding of the application, the application will be further described below in conjunction with examples, and the examples are only used to explain the application and do not constitute a limitation on the protection scope of the application.

[0021] Example 1

[0022] According to Figure 1 , 2 , 3, the present application proposes a core tube type silo roof concrete structure double-layer composite type steel support, which comprises a first layer silo roof secondary beam plate formwork support platform 1 and a second layer silo roof main beam formwork support platform 2, wherein the first layer silo roof secondary beam plate formwork support platform 1 and the second layer silo roof main beam formwork support platform 2 are both arranged above the inside of the silo 3, and the second layer silo roof main beam formwork support platform 2 is arranged at a position above the first layer silo roof secondary beam plate formwork support platform 1;

[0023] The first layer silo roof secondary beam plate formwork support platform 1 comprises first main steel beams 4, first secondary beams 5 and second secondary beams 6, the first main steel beams 4 are provided in multiple groups, and the multiple groups of first main steel beams 4 are arranged in equal angle sectors around the center of the silo 3, the first secondary beams 5 are provided in multiple groups, and the first secondary beams 5 are distributed in parallel on the first main steel beams 4, multiple groups of second secondary beams 6 are connected between the two groups of first secondary beams 5 at the inner ends, the second layer silo roof main beam formwork support platform 2 comprises second main steel beams 7 and third secondary beams 8, the second main steel beams 7 are provided in multiple groups, and the multiple groups of second main steel beams 7 are distributed in a cross shape, the third secondary beams 8 are provided in multiple groups, and the multiple groups of third secondary beams 8 are respectively arranged on the upper ends of the multiple groups of second main steel beams 7. During construction, the first layer silo roof secondary beam plate formwork support platform 1 (silo roof beam plate support system except for the large beam) is erected at EL39.00m of the silo 3: measuring on the silo wall embedded part, drawing cross lines → steel corbel processing and installation → the first main steel beams 4 are processed and installed by using HW350*350 → the first secondary beams 5 and the second secondary beams 6 are processed and installed by using 20@800 steel frames (steel reinforcement positioning ribs are welded on the secondary beam channel steel according to the designed spacing of the vertical poles of the scaffold) → full-paved steel jump plates or wooden jump plates → lower hanging dense-mesh safety protection nets, the second layer silo roof main beam formwork support platform 2 (silo roof large beam support system) is erected at EL41.00m: measuring on the silo wall embedded part, drawing cross lines → steel corbel processing and installation → the second main steel beams 7 are processed and installed by using HW400*400 → the third secondary beams 8 are processed and installed by using 20@500 steel frames (steel reinforcement positioning ribs are welded on the secondary beam channel steel according to the designed spacing of the vertical poles of the scaffold), beam plate full-support frame erection: placing longitudinal and transverse sweeping poles on the EL39.00m platform, fixing vertical poles and sweeping poles, installing longitudinal and transverse horizontal poles according to the step distance to EL41.00m, placing longitudinal and transverse sweeping poles on the EL41.00m platform, fixing vertical poles and sweeping poles, installing longitudinal and transverse horizontal poles according to the step distance to the designed elevation (the large beam is synchronously erected with other beam plate support frames), setting vertical and horizontal scissor braces, installing top supporting and joists, silo roof beam plate formwork, steel reinforcement and concrete construction: main and secondary beam plate formwork installation, beam plate bottom form installation, beam side form installation (except for the large beam), large beam steel reinforcement installation, large beam side form installation, other beam and plate steel reinforcement installation, and concrete pouring.

[0024] The second layer silo top main beam formwork support platform 2 is used to support the silo top main beam formwork support frame 9, and the first layer silo top secondary beam plate formwork support platform 1 is used to support the silo top secondary beam plate formwork support frame 10. The double-layer composite type steel support is adopted, the first layer silo top secondary beam plate formwork support platform 1 composed of the first main steel beam 4, the first secondary beam 5 and the second secondary beam 6 is used to support the silo top secondary beam plate formwork support frame 10 except the girder, and the second layer silo top main beam formwork support platform 2 composed of the second main steel beam 7 and the third secondary beam 8 is used to support the silo top main beam formwork support frame 9, which not only effectively disperses the load transmission (the girder support platform and the other beam plate support platforms bear the respective construction loads), but also unifies into a support system (the girder formwork support frame and the other beam plate support frames are synchronously and integrally erected), and has high overall strength, large rigidity, good stability and advanced technology.

[0025] The steel corbels are welded above the inside of the silo 3, and the first layer silo top secondary beam plate formwork support platform 1 and the second layer silo top main beam formwork support platform 2 are both installed on the steel corbels.

[0026] The first main steel beam 4 is an H-shaped steel, and the first main steel beam 4, the first secondary beam 5 and the second secondary beam 6 are welded with steel bar positioning ribs. The second main steel beam 7 is an H-shaped steel, and the second main steel beam 7 and the third secondary beam 8 are welded with steel bar positioning ribs, so that the support strength is high, the rigidity is large, the stability is good, and the quality of the upper silo top concrete forming is guaranteed.

[0027] Embodiment two

[0028] According to Figure 1 , 2 , 3, the embodiment provides a double-layer composite type steel support for a core tube type silo top concrete structure, which comprises a first layer silo top secondary beam plate formwork support platform 1 and a second layer silo top main beam formwork support platform 2, the first layer silo top secondary beam plate formwork support platform 1 and the second layer silo top main beam formwork support platform 2 are both arranged above the inside of a silo 3, and the second layer silo top main beam formwork support platform 2 is arranged at a position above the first layer silo top secondary beam plate formwork support platform 1;

[0029] The first layer silo roof secondary beam plate formwork support platform 1 comprises first main steel beams 4, first secondary beams 5 and second secondary beams 6, the first main steel beams 4 are provided in multiple groups, and the multiple groups of first main steel beams 4 are arranged in equal angle sectors around the center of the silo 3, the first secondary beams 5 are provided in multiple groups, and the first secondary beams 5 are distributed in parallel on the first main steel beams 4, multiple groups of second secondary beams 6 are connected between the two groups of first secondary beams 5 at the inner end, the second layer silo roof main beam formwork support platform 2 comprises second main steel beams 7 and third secondary beams 8, the second main steel beams 7 are provided in multiple groups, and the multiple groups of second main steel beams 7 are distributed in a cross shape, the third secondary beams 8 are provided in multiple groups, and the multiple groups of third secondary beams 8 are respectively arranged on the upper ends of the multiple groups of second main steel beams 7. During construction, the first layer silo roof secondary beam plate formwork support platform 1 (silo roof beam plate support system except for the large beam) is erected at EL39.00m of the silo 3: measuring on the silo wall embedded part, drawing cross lines → steel corbel processing and installation → the first main steel beams 4 are processed and installed by using HW350*350 → the first secondary beams 5 and the second secondary beams 6 are processed and installed by using 20@800 steel frames (steel reinforcement positioning ribs are welded on the secondary beam channel steel according to the designed spacing of the vertical poles of the scaffold) → full-paved steel jump plates or wooden jump plates → lower hanging dense-mesh safety protection nets, the second layer silo roof main beam formwork support platform 2 (silo roof large beam support system) is erected at EL41.00m: measuring on the silo wall embedded part, drawing cross lines → steel corbel processing and installation → the second main steel beams 7 are processed and installed by using HW400*400 → the third secondary beams 8 are processed and installed by using 20@500 steel frames (steel reinforcement positioning ribs are welded on the secondary beam channel steel according to the designed spacing of the vertical poles of the scaffold), beam plate full-support frame erection: placing longitudinal and transverse sweeping poles on the EL39.00m platform, fixing vertical poles and sweeping poles, installing longitudinal and transverse horizontal poles according to the step distance to EL41.00m, placing longitudinal and transverse sweeping poles on the EL41.00m platform, fixing vertical poles and sweeping poles, installing longitudinal and transverse horizontal poles according to the step distance to the designed elevation (the large beam is synchronously erected with other beam plate support frames), setting vertical and horizontal scissor braces, installing top supporting and joists, silo roof beam plate formwork, steel reinforcement and concrete construction: main and secondary beam plate formwork installation, beam plate bottom form installation, beam side form installation (except for the large beam), large beam steel reinforcement installation, large beam side form installation, other beam and plate steel reinforcement installation, and concrete pouring.

[0030] The second layer silo roof main beam formwork support platform 2 is used for supporting the silo roof main beam formwork support frame 9, and the first layer silo roof secondary beam plate formwork support platform 1 is used for supporting the silo roof secondary beam plate formwork support frame 10. The first layer silo roof secondary beam plate formwork support platform 1 composed of the first main steel beam 4, the first secondary beam 5 and the second secondary beam 6 is used for supporting the silo roof secondary beam plate formwork support frame 10 except the girder, and the second layer silo roof main beam formwork support platform 2 composed of the second main steel beam 7 and the third secondary beam 8 is used for supporting the silo roof main beam formwork support frame 9, which not only effectively disperses load transmission (the girder support platform and the other beam plate support platforms bear respective construction loads), but also unifies into a support system (the girder formwork support frame and the other beam plate support frames are synchronously and integrally erected), and has high overall strength, large rigidity, good stability and advanced technology.

[0031] The first layer silo roof secondary beam plate formwork support platform 1 is paved with a steel jump plate or a wood jump plate, and the first layer silo roof secondary beam plate formwork support platform 1 is hung with a dense-mesh safety protection net, which achieves effective safety protection and does not affect the three-dimensional cross operation of the lower part of the cylinder, and greatly shortens the construction period.

[0032] The core tube type silo roof concrete structure double-layer composite type steel support: the first layer silo roof secondary beam plate formwork support platform 1 composed of the first main steel beam 4, the first secondary beam 5 and the second secondary beam 6 is used for supporting the silo roof secondary beam plate formwork support frame 10 except the girder, and the second layer silo roof main beam formwork support platform 2 composed of the second main steel beam 7 and the third secondary beam 8 is used for supporting the silo roof main beam formwork support frame 9, which not only effectively disperses load transmission (the girder support platform and the other beam plate support platforms bear respective construction loads), but also unifies into a support system (the girder formwork support frame and the other beam plate support frames are synchronously and integrally erected), and has high overall strength, large rigidity, good stability and advanced technology. Moreover, the double-layer composite type steel support is adopted, the type steel component can be prefabricated in a factory in advance without occupying key working time, and the on-site mechanical installation duration is short, so that the construction period is greatly shortened. Meanwhile, the first layer silo roof secondary beam plate formwork support platform 1 is fully paved with a steel jump plate or a wood jump plate, and the lower part is fully hung with a safety net, which achieves effective safety protection and does not affect the three-dimensional cross operation of the lower part of the cylinder, and greatly shortens the construction period. The type steel platform has high self turnover rate, low cost, good economic effect, high support strength, large rigidity, good stability and guarantee for the molding quality of the upper silo roof concrete.

[0033] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A double composite type steel support for a core tube silo roof concrete structure, comprising a first layer silo roof secondary beam slab formwork support platform (1) and a second layer silo roof girder formwork support platform (2), characterized in that: The first layer silo top secondary beam plate formwork support platform (1) and the second layer silo top main beam formwork support platform (2) are arranged above the inside of the silo (3), and the second layer silo top main beam formwork support platform (2) is arranged at the upper position of the first layer silo top secondary beam plate formwork support platform (1); The first layer silo top secondary beam plate formwork support platform (1) comprises a first main steel beam (4), a first secondary beam (5) and a second secondary beam (6), the first main steel beam (4) is provided in multiple groups, and the multiple groups of first main steel beams (4) are arranged in an equiangular sector around the center of the silo (3), the first secondary beam (5) is provided in multiple groups, and the first secondary beams (5) are distributed in parallel on the first main steel beam (4), and the multiple groups of second secondary beams (6) are connected between the two groups of first secondary beams (5) at the inner end, the second layer silo top main beam formwork support platform (2) comprises a second main steel beam (7) and a third secondary beam (8), the second main steel beam (7) is provided in multiple groups, and the multiple groups of second main steel beams (7) are distributed in a cross shape, and the multiple groups of third secondary beams (8) are arranged at the upper end of the multiple groups of second main steel beams (7); The second layer silo top main beam formwork support platform (2) is used for supporting a silo top main beam formwork support frame (9), the first layer silo top secondary beam plate formwork support platform (1) is used for supporting a silo top secondary beam plate formwork support frame (10), a steel bracket is welded on the upper side of the inside of the silo (3), and the first layer silo top secondary beam plate formwork support platform (1) and the second layer silo top main beam formwork support platform (2) are both mounted on the steel bracket.

2. The double composite steel bracing of the core wall silo top concrete structure according to claim 1, characterized in that: The first main steel beam (4) is an H-shaped steel, and reinforcing steel positioning ribs are welded on the first main steel beam (4), the first secondary beam (5) and the second secondary beam (6).

3. The double composite steel bracing of the core wall silo top concrete structure according to claim 1, characterized in that: The second main steel beam (7) is an H-shaped steel, and reinforcing steel positioning ribs are welded on the second main steel beam (7) and the third secondary beam (8).

4. The core wall silo top concrete structure double-layer composite type steel support according to claim 1, characterized in that: Steel jumping plates or wooden jumping plates are laid on the first layer silo top secondary beam plate formwork support platform (1), and a dense-mesh safety protection net is hung below the first layer silo top secondary beam plate formwork support platform (1).

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