CN112779985A - Installation structure and construction method of large-size cross beam on integrated steel - Google Patents
Installation structure and construction method of large-size cross beam on integrated steel Download PDFInfo
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- CN112779985A CN112779985A CN202110097450.7A CN202110097450A CN112779985A CN 112779985 A CN112779985 A CN 112779985A CN 202110097450 A CN202110097450 A CN 202110097450A CN 112779985 A CN112779985 A CN 112779985A
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- brake iron
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2406—Connection nodes
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2415—Brackets, gussets, joining plates
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2418—Details of bolting
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2421—Socket type connectors
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses an installation structure of a large-size beam on integrated steel, wherein a reinforcing cage tenon is arranged at the end part of the large-size beam, a limiting edge is protruded on the reinforcing cage tenon, a support interface is arranged on the integrated steel, an installation seam is formed on the support interface, when the reinforcing cage tenon is assembled with the support interface, the limiting edge is simultaneously embedded into an upper installation seam and a lower installation seam, a first brake iron and a second brake iron are inserted into a gap corresponding to the installation seam, the reinforcing cage tenon is supported by a bottom plate, a tensioning bolt is arranged through the bottom plate and is in threaded connection with the second brake iron, a cover plate for limiting the reinforcing cage tenon is arranged on the first brake iron, a fastening bolt is arranged through the cover plate, and the fastening bolt is in threaded connection with the upper end of the reinforcing cage tenon. The mounting structure fully ensures the reliable fixation of the tenon, eliminates the connection gap, improves the pretightening force, ensures the connection strength and reduces the field assembly difficulty. The invention also discloses a construction method of the large-size beam on the integrated steel.
Description
Technical Field
The invention relates to the technical field of integrated section steel, in particular to an installation structure and a construction method of a large-size beam on the integrated section steel.
Background
At present, steel structures are used more and more in the field of building structures, various novel steel structure forms are continuously emerged, the steel structures are applied to the field of engineering, the number of the steel structures is continuously increased, and the steel structures have wide prospects. The integrated steel is one of steel structures, and the splicing welding connection mode in the height direction is particularly superior, so that the field construction difficulty is reduced, and the construction efficiency is improved.
When installing the crossbeam on the integrated steel type building, the current mode is to link firmly through the bolt earlier, and weld the shaping again. In the mode, the bolt connection has a connection gap, the field welding workload is large, the welding smoke discharge amount is large, the labor intensity is high, and the construction efficiency is low. In addition, due to the bearing requirement, the size of some cross beams is large, particularly the size in the height direction, a plurality of bolts need to be installed, otherwise, the installation reliability can be greatly reduced, and the construction difficulty is further increased. Therefore, it is desirable to provide a new beam mounting structure or construction method that improves the convenience of site construction.
Disclosure of Invention
The invention aims to provide a mounting structure of a large-size cross beam on integrated steel, which aims at designing a connection mode of the large-size cross beam, realizes simple and convenient mounting of the cross beam, avoids a large amount of on-site welding operation and ensures the connection reliability.
The invention also aims to provide a construction method of the large-size cross beam on the integrated section steel, which improves the convenience of site construction.
In order to achieve the purpose, the invention adopts the following technical scheme:
a mounting structure of a large-size beam on integrated steel is disclosed, wherein a reinforcing cage tenon is arranged at the end part of the large-size beam, a limiting edge is protruded on the reinforcing cage tenon, a supporting interface is arranged on the integrated steel and comprises a bottom plate and two side plates, an upper fixing block and a lower fixing block are arranged on the inner walls of the two side plates, mounting seams which are gradually narrowed from top to bottom are respectively formed on the two fixing blocks, when the reinforcing cage tenon is assembled with the supporting interface, the limiting edge is simultaneously embedded into the upper mounting seam and the lower mounting seam, a first brake iron which compresses the limiting edge is inserted into a gap of the mounting seam of the upper fixing block, a second brake iron which compresses the limiting edge is inserted into a gap of the mounting seam of the lower fixing block, the reinforcing cage tenon is supported by the bottom plate, a tensioning bolt is arranged through the bottom plate, and is in threaded connection with the second brake iron, so as to provide downward wedging force for the second brake iron, be provided with on the first brake iron to its upper limit's apron, pass the apron and be provided with fastening bolt, fastening bolt and the upper end threaded connection of steel reinforcement cage tenon to provide wedge power down for first brake iron.
Particularly, the both sides on spacing edge all are provided with first brake iron, and threaded connection has adjusting bolt on the apron, and the apron directly exerts the pressure and acts on one of them side first brake iron, and adjusting bolt top is pressed on the first brake iron of opposite side.
In particular, the two sides of the limiting edge are provided with second brake irons, and each second brake iron is independently connected through a single tensioning bolt.
Particularly, the upper layer fixed block and the lower layer fixed block are composed of two wedge blocks arranged in a clearance mode, and inclined planes matched with the wedge blocks are formed on the first brake iron and the second brake iron.
Particularly, a limiting hole is formed in the tenon of the steel reinforcement cage, a first locking bolt is connected between the two side plates and penetrates through the limiting hole, and therefore the tenon of the steel reinforcement cage is locked.
Particularly, a second locking bolt is connected between the two side plates and located above the tenon of the steel reinforcement cage assembled in place, and the tenon of the steel reinforcement cage is limited upwards.
Especially, jumbo size crossbeam includes the thin-wall channel-section steel, reinforcing bar and staple bolt, a plurality of reinforcing bar is arranged in the vallecular cavity of thin-wall channel-section steel along thin-wall channel-section steel length direction, a plurality of staple bolt circumference spot welding is in the outer lane of each reinforcing bar, the bottom setting that the steel reinforcement cage tenon leaned on the thin-wall channel-section steel, and the outer wall of steel reinforcement cage tenon pastes with the reinforcing bar and welds even, the staple bolt is the narrowband, twist connecting screw outward from the thin-wall channel-section steel and link firmly with the staple bolt, with each staple bolt locking, concrete has been pour in the vallecular cavity, thereby with the thin-wall channel-section steel, the reinforcing.
In particular, a dovetail groove for sinking the connecting screw into is arranged on the thin-wall channel steel corresponding to the screwing position of the connecting screw.
In particular, the thin-wall channel steel is of a split structure and comprises a first half part and a second half part, and at least one dovetail groove of the two half parts is overlapped and nested and is simultaneously fixed by a connecting screw so as to be combined.
On the other hand, the invention adopts the following technical scheme:
a construction method of a large-size beam on integrated steel is based on the installation structure of the large-size beam on integrated steel, and comprises the following steps:
preforming a support interface on the integrated steel;
designing a large-size beam structure, and arranging a steel reinforcement cage tenon at the end part of the large-size beam structure;
during field construction, horizontally suspending the large-size cross beam, and simultaneously embedding the tenon of the reinforcement cage at the end part of the large-size cross beam into the upper mounting seam and the lower mounting seam of the support interface to finish pre-assembly;
a first brake iron and a second brake iron are respectively inserted into the gap of the two mounting seams, downward wedging force is provided for the second brake iron by screwing a tensioning bolt on the second brake iron, and downward wedging force is provided for the first brake iron by screwing a fastening bolt at the upper end of the tenon of the reinforcement cage, so that the tenon of the reinforcement cage is fastened, and pretightening force is generated;
screwing a first locking bolt and a second locking bolt into the supporting interface to lock and limit the tenon of the steel reinforcement cage;
and integrally pouring concrete in the integrated steel and the supporting interface thereof, the cross beam and the reinforcement cage tenon thereof.
Compared with the prior art, the mounting structure and the construction method of the large-size cross beam on the integrated section steel have the advantages that the original fixing structure of bolt connection and welding is replaced by the mode of splicing the tenon of the reinforcement cage of the cross beam with the support interface of the integrated section steel and clamping the brake irons, the on-site quick mounting is realized, the upper-layer fixing structure and the lower-layer fixing structure are designed for the large-size cross beam structure, meanwhile, the reliable fixing of the tenon is fully ensured by increasing the wedging force on each brake iron, the connection gap is eliminated, the pre-tightening force is improved, the connection strength is ensured, the on-site assembly difficulty is reduced, and a new thought is provided for assembling the cross beam on the integrated section steel.
Drawings
FIG. 1 is a schematic view of a mounting structure of a large-sized beam on integrated steel according to an embodiment of the present invention;
FIG. 2 is a plan view of a mounting structure of a large-sized cross beam on integrated steel according to an embodiment of the present invention;
FIG. 3 is an enlarged view at A in FIG. 1;
FIG. 4 is an enlarged view at B of FIG. 1;
FIG. 5 is a structural side view of a large-sized beam provided by an embodiment of the present invention;
fig. 6 is an enlarged view at C in fig. 5.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Referring to fig. 1 to 6, in the present embodiment, an installation structure of a large-sized beam on integrated steel is provided, wherein a reinforcement cage tenon 2 is disposed at an end of the large-sized beam 1, and a limiting edge 21 protrudes from the reinforcement cage tenon 2. Jumbo size crossbeam 1 includes thin wall channel-section steel 11, reinforcing bar 12 and staple bolt 13, a plurality of reinforcing bar 12 is arranged in the vallecular cavity of thin wall channel-section steel 11 along 11 length direction of thin wall channel-section steel, the spot welding of 13 circumference of a plurality of staple bolt is in the outer lane of each reinforcing bar 12, reinforcement cage tenon 2 leans on the bottom setting of thin wall channel-section steel 11, and the outer wall of reinforcement cage tenon 2 pastes with reinforcing bar 12 and leans on to weld even, staple bolt 13 is the narrowband form, twist connecting screw 14 outward from thin wall channel-section steel 11 and link firmly with staple bolt 13, lock each staple bolt 13, concrete has been pour in the vallecular cavity, thereby with thin wall channel-section steel 11, reinforcing bar 12, staple bolt 13, reinforcement cage tenon 2 condenses to.
Particularly, a dovetail groove 15 for sinking the connecting screw 14 into the thin-wall channel 11 is formed in a screwing position of the connecting screw 14, and the dovetail groove 15 can ensure the bonding force between the thin-wall channel 11 and concrete and can hide the connecting screw 14.
According to the bearing requirements, some cross beams have large sizes, in order to reduce the forming difficulty and the production conveying pressure of the thin-wall channel 11, the thin-wall channel 11 can be designed into a split structure which can comprise a first half part and a second half part, at least one dovetail groove 15 of the two half parts is overlapped and nested, and is simultaneously fixed by a connecting screw 14 so as to be integrated, as shown in fig. 6. On the basis, more combination possibilities can be developed.
Be provided with support interface 4 on integrated shaped steel 3, specifically can weld when integrated shaped steel 3 leaves the factory and reserve. The support interface 4 comprises a bottom plate 41 and two side plates, an upper fixing block 42 and a lower fixing block 43 are arranged on the inner walls of the two side plates, and installation seams which are gradually narrowed from top to bottom are formed on the two fixing blocks respectively.
When steel reinforcement cage tenon 2 and support interface 4 assemble, spacing along 21 imbed two mounting joints about simultaneously, and insert in the clearance of the mounting joint of upper fixed block 42 and compress tightly spacing first brake iron 44 along 21, insert in the clearance of the mounting joint of lower fixed block 43 and compress tightly spacing second brake iron 45 along 21.
Preferably, the upper fixing block 42 and the lower fixing block 43 are both composed of two wedge blocks arranged at intervals, and inclined planes matched with the wedge blocks are formed on the first brake iron 44 and the second brake iron 45.
The steel reinforcement cage tenon 2 is supported by the bottom plate 41, and passes the bottom plate 41 and be provided with tie bolt 46, and tie bolt 46 and second brake iron 45 threaded connection to provide the downward wedging power for second brake iron 45, be provided with on the first brake iron 44 to its spacing apron 47, pass apron 47 and be provided with fastening bolt 48, fastening bolt 48 and the upper end threaded connection of steel reinforcement cage tenon 2, thereby provide the downward wedging power for first brake iron 44.
The two sides of the limiting edge 21 are provided with first brake irons 44, the cover plate 47 is in threaded connection with an adjusting bolt 49, the cover plate 47 directly presses the first brake iron 44 on one side, and the adjusting bolt 49 presses the first brake iron 44 on the other side, so that the wedging force of the first brake iron 44 can be further finely adjusted.
The two sides of the limiting edge 21 are provided with second brake irons 45, and each second brake iron 45 is independently connected through a single tensioning bolt 46.
Seted up spacing hole 22 on the steel reinforcement cage tenon 2, be connected with first locking bolt 5 between two curb plates, first locking bolt 5 passes spacing hole 22 to lock steel reinforcement cage tenon 2. And a second locking bolt 6 is connected between the two side plates, the second locking bolt 6 is positioned above the steel reinforcement cage tenon 2 assembled in place, and the steel reinforcement cage tenon 2 is limited upwards.
It should be noted that, the tenon and the brake iron can eliminate the connection gap caused by the manufacturing tolerance, the welding is not needed in the field, the pretightening force can be generated, and the connection reliability is improved.
The cross beam mounting structure is suitable for the linear integrated section steel, is also suitable for the integrated section steel with other shapes, such as L-shaped, T-shaped and the like, and only needs to be adaptively provided with the interfaces on the integrated section steel. In addition, the structure of the cross beam and the tenon is not limited, and the tenon with other shapes such as the eave beam can be similarly used.
Therefore, the embodiment further provides a construction method of the large-size cross beam on the integrated steel, and based on the installation structure of the large-size cross beam on the integrated steel, the construction method comprises the following steps:
1) pre-forming a support interface 4 on the integrated steel 3;
2) designing a large-size cross beam 1 structure, and arranging a reinforcement cage tenon 2 at the end part of the large-size cross beam;
3) during field construction, horizontally suspending the large-size beam 1, and simultaneously embedding the tenon 2 of the reinforcement cage at the end part into the upper mounting seam and the lower mounting seam of the support interface 4 to finish pre-assembly;
4) a first brake iron 44 and a second brake iron 45 are respectively inserted into the gaps of the two mounting seams, downward wedging force is provided for the second brake iron 45 by screwing a tensioning bolt 46 on the second brake iron 45, downward wedging force is provided for the first brake iron 44 by screwing a fastening bolt 48 at the upper end of the steel bar cage tenon 2, and therefore the steel bar cage tenon 2 is fastened, and pre-tightening force is generated;
5) screwing a first locking bolt 5 and a second locking bolt 6 into the support interface 4 to lock and limit the steel reinforcement cage tenon 2;
6) concrete is integrally poured in the integrated steel 3 and the supporting interface 4 thereof, the large-size cross beam 1 and the reinforcement cage tenon 2 thereof.
In conclusion, the installation structure and the construction method of the large-size beam on the integrated section steel replace the original fixed structure of bolt connection and welding by splicing the tenon of the reinforcement cage of the beam with the support interface of the integrated section steel and clamping the brake irons, realize on-site quick installation, design an upper-layer fixed structure and a lower-layer fixed structure aiming at the large-size beam structure, fully ensure the reliable fixation of the tenon by adding the clamping force to each brake iron, eliminate the connection gap, improve the pretightening force, ensure the connection strength, reduce the on-site assembly difficulty, and provide a new idea for assembling the beam on the integrated section steel.
The foregoing embodiments are merely illustrative of the principles and features of this invention, which is not limited to the above-described embodiments, but is capable of various modifications and changes without departing from the spirit and scope of the invention, which are intended to be within the scope of the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a mounting structure of jumbo size crossbeam on integrated shaped steel, its characterized in that, the tip of jumbo size crossbeam is provided with the steel reinforcement cage tenon, the arch has spacing edge on the steel reinforcement cage tenon, be provided with the support interface on the integrated shaped steel, the support interface includes bottom plate and two curb plates, be provided with upper fixed block and lower floor's fixed block on the inner wall of two curb plates, be formed with the installation seam that narrows from top to bottom respectively on the two-layer fixed block, the steel reinforcement cage tenon with during the support interface assembly, spacing edge imbeds simultaneously in two installation seams from top to bottom, and in the first brake iron that compresses tightly spacing edge is inserted in the clearance of the installation seam of upper fixed block, in the clearance of the installation seam of lower floor's fixed block insert the second brake iron that compresses tightly spacing edge, the steel reinforcement cage tenon by the bottom plate supports, and passes the bottom plate is provided with tension bolt, the tie bolt with second brake iron threaded connection to provide the downward wedging power for the second brake iron, be provided with on the first brake iron to its spacing apron, pass the apron is provided with fastening bolt, fastening bolt with the upper end threaded connection of steel reinforcement cage tenon, thereby provide the downward wedging power for first brake iron.
2. The mounting structure of a large-sized cross member on integrated steel according to claim 1, wherein: the first brake irons are arranged on two sides of the limiting edge, the cover plate is connected with an adjusting bolt in a threaded mode, the cover plate directly exerts pressure on the first brake iron on one side, and the adjusting bolt is pressed on the first brake iron on the other side in a propping mode.
3. The mounting structure of a large-sized cross member on integrated steel according to claim 1, wherein: the both sides on spacing edge all are provided with the second brake iron, and every second brake iron is by single straining bolt independent connection.
4. The mounting structure of a large-sized cross member on integrated steel according to claim 1, wherein: the upper fixed block with the lower floor fixed block comprises the wedge block that two clearances set up, be formed with the inclined plane with the wedge block adaptation on first brake iron, the second brake iron.
5. The mounting structure of a large-sized cross member on integrated steel according to claim 1, wherein: the steel reinforcement cage tenon is provided with a limiting hole, a first locking bolt is connected between the two side plates and penetrates through the limiting hole, and therefore the steel reinforcement cage tenon is locked.
6. The mounting structure of a large-sized cross member on integrated steel according to claim 1, wherein: and a second locking bolt is connected between the two side plates and is positioned above the tenon of the steel reinforcement cage which is assembled in place, so that the tenon of the steel reinforcement cage is limited upwards.
7. The mounting structure of a large-sized cross member on integrated steel according to claim 1, wherein: the large-size cross beam comprises thin-wall channel steel, reinforcing steel bars and a plurality of hoops, the reinforcing steel bars are arranged in the groove cavities of the thin-wall channel steel along the length direction of the thin-wall channel steel, the hoops are welded to the outer rings of the reinforcing steel bars in a circumferential direction in a spot mode, the steel bar cage tenons lean against the bottoms of the thin-wall channel steel, the outer walls of the steel bar cage tenons are attached to the reinforcing steel bars in a welding mode, the hoops are narrow-band-shaped, the thin-wall channel steel is screwed in by connecting screws to be fixedly connected with the hoops, the hoops are locked, concrete is poured in the groove cavities, and the thin-wall channel steel, the reinforcing steel bars.
8. The mounting structure of a large-sized cross member on integrated steel according to claim 7, wherein: and dovetail grooves for enabling the connecting screws to sink into are formed in the thin-wall channel steel corresponding to the screwing positions of the connecting screws.
9. The mounting structure of a large-sized cross member on integrated steel according to claim 7, wherein: the thin-wall channel steel is of a split structure and comprises a first half part and a second half part, and at least one dovetail groove of the two half parts is overlapped and nested and is simultaneously fixed by a connecting screw so as to be combined.
10. A construction method of a large-sized beam on integrated steel based on the installation structure of the large-sized beam on integrated steel of any one of claims 1 to 9, comprising the steps of:
preforming a support interface on the integrated steel;
designing a large-size beam structure, and arranging a steel reinforcement cage tenon at the end part of the large-size beam structure;
during field construction, horizontally suspending the large-size cross beam, and simultaneously embedding the tenon of the reinforcement cage at the end part of the large-size cross beam into the upper mounting seam and the lower mounting seam of the support interface to finish pre-assembly;
a first brake iron and a second brake iron are respectively inserted into the gap of the two mounting seams, downward wedging force is provided for the second brake iron by screwing a tensioning bolt on the second brake iron, and downward wedging force is provided for the first brake iron by screwing a fastening bolt at the upper end of the tenon of the reinforcement cage, so that the tenon of the reinforcement cage is fastened, and pretightening force is generated;
screwing a first locking bolt and a second locking bolt into the supporting interface to lock and limit the tenon of the steel reinforcement cage;
and integrally pouring concrete in the integrated steel and the supporting interface thereof, the cross beam and the reinforcement cage tenon thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110097450.7A CN112779985A (en) | 2021-01-25 | 2021-01-25 | Installation structure and construction method of large-size cross beam on integrated steel |
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| CN202110097450.7A CN112779985A (en) | 2021-01-25 | 2021-01-25 | Installation structure and construction method of large-size cross beam on integrated steel |
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| CN112779985A true CN112779985A (en) | 2021-05-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114103238A (en) * | 2021-11-18 | 2022-03-01 | 上海人造板机器厂有限公司 | Splicing structure of artificial board press beam |
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2021
- 2021-01-25 CN CN202110097450.7A patent/CN112779985A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114103238A (en) * | 2021-11-18 | 2022-03-01 | 上海人造板机器厂有限公司 | Splicing structure of artificial board press beam |
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