CN219012068U - Super-large cantilever steel structure temporary support - Google Patents
Super-large cantilever steel structure temporary support Download PDFInfo
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- CN219012068U CN219012068U CN202223203727.9U CN202223203727U CN219012068U CN 219012068 U CN219012068 U CN 219012068U CN 202223203727 U CN202223203727 U CN 202223203727U CN 219012068 U CN219012068 U CN 219012068U
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Abstract
The utility model discloses a temporary support of an oversized cantilever steel structure, which comprises a roadbed box; the device also comprises a supporting vertical frame fixed on the top surface of the roadbed box, wherein a distributing beam base plate is fixed on the top end of the supporting vertical frame, and a lifting adjusting piece is fixed on the top surface of the distributing beam base plate. The oversized overhanging steel structure temporary support is built between the main upright posts, a suspension post is arranged on the top surface of the distribution beam base plate, and cable ropes are pulled on two sides of the top end of the suspension post; a bottom steel beam is arranged between the main upright post and the suspension post; other suspended columns are arranged on the bottom steel beam, and cable ropes are pulled on two sides of the top end of the suspended column which is arranged at the back; inter-column supports are arranged among the plurality of suspended columns; and installing a top steel beam between the main upright post and the suspended post, and dismantling the cable rope and the temporary support after the installation is completed. The utility model provides reliable support for high-altitude assembly by using the temporary support, and thoroughly solves the defects of the traditional construction method.
Description
Technical Field
The utility model relates to the technical field of high-altitude installation and construction of ultra-high and ultra-large overhanging steel structures, in particular to a temporary support of an ultra-large overhanging steel structure.
Background
With the improvement of national living standard, a large number of public buildings in cities are pulled up like bamboo shoots after raining, such as markets, museums, theatres and the like. With the increasing landmark attributes of public buildings, architects pursue higher and higher appearance models, and the demand for using deformed steel structure systems to realize unique appearance models of buildings is beginning to be widely used. Wherein the steel structure is formed by ultra-high and ultra-large overhanging.
In the prior art, for ultra-high and ultra-large cantilever steel structures, a large number of full-hall scaffolds are often adopted as construction operation platforms in the traditional construction method to provide temporary support for non-system components, and the components are assembled in sections or on the ground to form small units and then assembled at high altitude. The problems are as follows:
(1) For the high-altitude assembly of the ultra-high and ultra-large overhanging steel structure, the amount of the scaffold to be put into is huge;
(2) Because the scaffold has limited bearing capacity, when the scaffold is used as a steel member for temporary support, the member is more limited in segmentation or assembly of small units, so that the high-altitude assembly workload is increased;
(3) When the total amount of the single segmented components or small units is limited, the number of the segmented components or small units is increased, the accumulated error is larger during high-altitude scattered splicing, and the control difficulty of the installation precision is larger.
Therefore, how to provide an oversized cantilever steel structure bracket capable of maximally guaranteeing the installation precision of the structure and maximally reducing the investment of a large amount of scaffolds in the traditional steel structure installation is a problem to be solved by a person skilled in the art.
Disclosure of Invention
In view of the above, the present utility model provides a temporary support of oversized overhanging steel structure, which aims to solve the above technical problems.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
an oversized overhanging steel structure temporary support comprises a roadbed box; the roadbed box is characterized by further comprising a supporting vertical frame fixed on the top surface of the roadbed box, a distributing beam base plate is fixed on the top end of the supporting vertical frame, and a lifting adjusting piece is fixed on the top surface of the distributing beam base plate.
Because the large span and the overhanging structure in the oversized overhanging steel structure are more, the weight of the single component, especially the truss girder and the like, is larger, if a scaffold system with smaller bearing capacity is adopted, the single component needs to be divided into a plurality of sections until the installation load of each section of component is smaller than the bearing capacity of the scaffold system, and the overhead assembly is carried out. Through the technical scheme, the temporary support system for installing the steel structure has larger bearing capacity, completely meets the integral hoisting requirements of a large-span cantilever structure, and avoids the construction method that the installation member is divided into multiple sections for air assembly due to insufficient bearing capacity of the temporary support structure.
Preferably, in the oversized overhanging steel structure temporary support, the supporting stand is a lattice type steel column. The lattice type steel column can meet the requirement of the support strength of the temporary support.
Preferably, in the oversized overhanging steel structure temporary support, the lifting adjusting member is a sandbox or a jack. The sandbox or the jack is simple and applicable in structure and can meet the adjustment requirement on the cross beam.
Preferably, in the oversized overhanging steel structure temporary support, a fence is fixed on the edge of the top surface of the distributing beam backing plate. The setting of rail can guarantee constructor's personal safety.
Preferably, in the above-mentioned oversized cantilever steel structure temporary support, the middle part of the top surface of the distributing beam pad is a suspended column installation area, and the number of the lifting adjusting members is multiple and distributed on the outer side of the suspended column installation area. The lifting adjusting piece is used for adjusting the levelness and the position of the cross beam, and the quantity is set according to the requirement.
The construction method of the oversized cantilever steel structure bracket provided by the utility model specifically comprises the following steps:
s1, building the oversized overhanging steel structure temporary support between main upright posts, installing a suspension column on the top surface of a distribution beam base plate, and pulling and arranging cable ropes on two sides of the top end of the suspension column;
s2, installing a bottom steel beam between the main upright post and the suspension post;
s3, installing other suspended columns on the bottom steel beam, and pulling cable ropes on two sides of the top end of the suspended column installed later;
s4, installing inter-column supports among the plurality of suspended columns;
s5, installing a top steel beam between the main upright post and the suspension post, and dismantling the cable rope and the temporary support after the installation is completed.
The bracket method high-altitude installation provides a reliable construction method for the installation of the oversized overhanging steel structure, ensures the installation precision of the structure to the greatest extent, and reduces the investment of a large number of scaffolds in the traditional steel structure installation to the greatest extent.
In step S2, when the bottom steel beam is installed, a temporary square steel pipe support is provided at the bottom of the bottom steel beam, and is removed together with the cable wind rope and the temporary support. The stability and the reliability of bottom girder steel installation can be guaranteed to interim square steel pipe support.
In step S2, when the bottom steel beam is installed, the position of the bottom steel beam is adjusted by adjusting the height of the lifting adjusting member. The lifting adjusting piece is used for adjusting the levelness and the position of the cross beam, and the quantity is set according to the requirement.
And an inclined support is arranged between the bottom of the bottom steel beam and the main upright post. The inclined support can improve the structural strength of the bottom steel beam.
The top end of the cable rope is connected with the lifting lug at the top end of the suspension column, and the bottom end of the cable rope is inserted into the ground through a steel drill rod. The cable rope is convenient for connection and subsequent detachment.
Compared with the prior art, the utility model discloses the oversized overhanging steel structure temporary support, which has the following beneficial effects:
1. the oversized cantilever steel structure supporting method provides reliable support for high-altitude assembly by using the lattice type temporary support, and thoroughly solves the defects of the traditional construction method.
2. The temporary support system provided in the oversized cantilever steel structure support method has the bearing capacity far larger than that of the scaffold, and can reduce the number of component sections and small units to the greatest extent when the oversized cantilever steel structure is assembled at high altitude.
3. Due to the reduction of the number of the component sections and the small units, the investment of the scaffold for the construction platform can be reduced to the greatest extent, and the crank arm vehicle can be used for replacing the scaffold for the construction platform under the condition that site construction conditions allow.
4. Due to the reduction of component segmentation and small unit quantity, the installation precision is easy to control when the component is assembled at high altitude.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of a temporary support of an oversized overhanging steel structure, provided by the utility model;
FIG. 2 is a schematic diagram of step S1 of the construction method of the oversized cantilever steel structure bracket provided by the utility model;
FIG. 3 is a schematic side view of step S1 of the construction method of the oversized cantilever steel structure bracket provided by the utility model;
FIG. 4 is a schematic diagram of step S2 of the construction method of the oversized cantilever steel structure bracket provided by the utility model;
FIG. 5 is a schematic diagram of steps S3 and S4 of the construction method of the oversized cantilever steel structure bracket provided by the utility model;
FIG. 6 is a schematic diagram of step S5 of the construction method of the oversized cantilever steel structure bracket provided by the utility model;
fig. 7 is a schematic diagram showing completion of the cantilever structure in step S5 of the construction method of the oversized cantilever steel structure bracket provided by the utility model.
Wherein:
1-a roadbed box; 2-supporting a vertical frame; 3-distributing beam pads; 4-lifting adjusting piece; 5-a main column; 6-suspending the column; 7-a cable rope; 8-bottom steel beams; 9-inter-column support; 10-top steel beams; 11-inclined support; 12-lifting lugs; 13-steel drill rod.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, the embodiment of the utility model discloses a temporary support of an oversized overhanging steel structure, which comprises a roadbed box 1; still including fixing the support grudging post 2 at roadbed case 1 top surface, support grudging post 2 top is fixed with distribution beam backing plate 3, and distribution beam backing plate 3 top surface is fixed with lift adjusting part 4.
In order to further optimize the technical scheme, the supporting stand 2 is a lattice type steel column.
In order to further optimize the above technical solution, the lifting adjusting member 4 is a sandbox or a jack.
In order to further optimize the technical scheme, the edge of the top surface of the distributing beam cushion plate 3 is fixed with a fence.
In order to further optimize the technical scheme, the middle part of the top surface of the distributing beam base plate 3 is a suspended column installation area, and the lifting adjusting pieces 4 are distributed on the outer side of the suspended column installation area.
The construction method of the oversized cantilever steel structure bracket provided by the embodiment specifically comprises the following steps:
s1, referring to fig. 2 and 3, a temporary support of an oversized cantilever steel structure is built between main upright posts 5, a suspension post 6 is arranged on the top surface of a distribution beam backing plate 3, and guy ropes 7 are pulled on two sides of the top end of the suspension post 6; the top end of the cable rope 7 is connected with a lifting lug 12 at the top end of the suspension column 6, and the bottom end of the cable rope 7 is inserted into the ground through a steel drill rod 13;
s2, referring to fig. 4, a bottom steel beam 8 is arranged between the main upright 5 and the suspension column 6; when the bottom steel beam 8 is installed, a temporary square steel pipe support is arranged at the bottom of the bottom steel beam 8, and square steel pipes with 200 x 12 openings are selected for the temporary square steel pipe support; when the bottom steel beam 8 is installed, the position of the bottom steel beam 8 is adjusted by adjusting the height of the lifting adjusting piece 4; a diagonal brace 11 is arranged between the bottom of the bottom steel beam 8 and the main upright 5;
s3, referring to the attached drawing 5, other suspension columns 6 are arranged on the bottom steel beam 8, and cable ropes 7 are pulled on two sides of the top end of the suspension column 6 which is arranged at the back; the top end of the cable rope 7 is connected with a lifting lug 12 at the top end of the suspension column 6, and the bottom end of the cable rope 7 is inserted into the ground through a steel drill rod 13; the cable rope 7 selects steel wire ropes with phi 19-25 mm, and the manual chain-down selects 2-5 tons.
S4, mounting inter-column supports 9 among the plurality of suspension columns 6;
s5, referring to fig. 6 and 7, a top steel beam 10 is installed between the main upright 5 and the suspended upright 6, and after the installation is completed, the cable 7, the temporary square steel pipe support and the temporary support are removed.
The advantage of this embodiment is that:
1. the temporary support, the roadbed box below and the steel member to be installed on the upper portion are integrated, so that the temporary support has enough stability, and the construction safety and the steel structure installation accuracy can be guaranteed.
2. The support is suitable for various irregular components, is not limited by the size and shape of the selected irregular components, can be formulated according to the upper load, and does not need repeated design for the support form.
3. The support body is erected in a full hall to support, the support is convenient to move, the turnover is realized, the turnover speed is high, and the construction period and the measure cost can be saved.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. An oversized overhanging steel structure temporary support comprises a roadbed box (1); the roadbed box is characterized by further comprising a supporting vertical frame (2) fixed on the top surface of the roadbed box (1), a distributing beam base plate (3) is fixed on the top end of the supporting vertical frame (2), and a lifting adjusting piece (4) is fixed on the top surface of the distributing beam base plate (3).
2. The oversized cantilever steel structure temporary support according to claim 1, characterized in that the supporting stand (2) is a lattice steel column.
3. The oversized cantilever steel structure temporary support according to claim 1, characterized in that the lifting adjusting member (4) is a sandbox or a jack.
4. The oversized cantilever steel structure temporary support according to claim 1, wherein a fence is fixed on the edge of the top surface of the distribution beam base plate (3).
5. The oversized cantilever steel structure temporary support according to any one of claims 1 to 4, wherein the middle part of the top surface of the distribution beam base plate (3) is a suspended column installation area, and the number of the lifting adjusting pieces (4) is multiple and distributed outside the suspended column installation area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223203727.9U CN219012068U (en) | 2022-11-30 | 2022-11-30 | Super-large cantilever steel structure temporary support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223203727.9U CN219012068U (en) | 2022-11-30 | 2022-11-30 | Super-large cantilever steel structure temporary support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219012068U true CN219012068U (en) | 2023-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223203727.9U Active CN219012068U (en) | 2022-11-30 | 2022-11-30 | Super-large cantilever steel structure temporary support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219012068U (en) |
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2022
- 2022-11-30 CN CN202223203727.9U patent/CN219012068U/en active Active
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