CN219587189U - Pi-shaped steel support of tool-type outer anchor cantilever scaffold - Google Patents
Pi-shaped steel support of tool-type outer anchor cantilever scaffold Download PDFInfo
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- CN219587189U CN219587189U CN202320291539.1U CN202320291539U CN219587189U CN 219587189 U CN219587189 U CN 219587189U CN 202320291539 U CN202320291539 U CN 202320291539U CN 219587189 U CN219587189 U CN 219587189U
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Abstract
The pi-shaped steel support is used in the construction process, I-steel at the bottom of the frame body is directly fixed on the outer vertical surface of the building engineering and used together with a wall connecting device which is pre-buried and installed in concrete, so that the whole frame body and the building are ensured to have independent interfaces, and a large number of holes are reserved in the building to restrict subsequent procedures when I-steel installation and frame body wall connection are carried out.
Description
Technical Field
The present utility model relates to scaffold equipment for use in high-rise building construction.
Background
In high-rise building construction, because the building is higher, the main part has skirt room all around, backfill district does not backfill etc. the project generally adopts overhanging scaffold. At present, the common overhanging scaffolds of high-rise buildings are of 2 types: one type is a common overhanging scaffold, and the other type is an outer anchor type overhanging scaffold. Wherein the outer anchors are divided into a welding base outer anchor type and a tool base outer anchor type 2 types. The welding base outer anchor type overhanging scaffold has the following defects:
1) The outer anchor in the outer anchor type cantilever scaffold of the welding base needs to be processed in advance to a specific position needs to be processed to a specific size, and meanwhile, different constructional engineering has different design requirements, so that unified standard specifications are difficult to establish, and therefore, batch operation cannot be realized without a method, and the construction efficiency cannot be improved.
2) The welding base outer anchor type cantilever scaffold base can only be used for the outer anchor cantilever scaffold in a circumferential mode, compared with the common cantilever scaffold I-steel, the welding base outer anchor type cantilever scaffold has the advantage that the universality after processing is reduced (because the base and the I-steel are welded into a whole). Therefore, the I-steel of the common cantilever frame can be used for other non-cantilever frames in a turnover way, and the applicability is wider; and the application range of the I-steel in the welding base outer anchor type cantilever scaffold is extremely limited.
3) The main stress weak points of the outer anchors of the welding base overhanging scaffold are weld joints and bolts, and the calculation and detection of various stresses of the weld joints and the bolts are more complicated compared with those of the tool outer anchors overhanging scaffold, and besides, the weld joints and the bolts are required to be checked and accepted.
4) The outer anchor of the welded base outer anchor type cantilever scaffold is also required to recheck the stress influence of an outer wall or a beam (similar to the attachment of a tower crane and the attachment of a construction elevator) like the toolized outer anchor type cantilever scaffold, but is more complex than the toolized outer anchor type cantilever scaffold, and the welded base outer anchor type cantilever scaffold is required to be designed into a recheck structure.
5) The outer anchor embedded bolts in the outer anchor type cantilever scaffold of the welding base also need to be perforated on the template, so that the turnover rate of the template is affected, but the turnover rate can be improved into turnover bolts penetrating through the wall.
6) The welding base has low investment at one time, and compared with a pi-shaped base of a bolt base, the welding base has relatively simple processing, but the pi-shaped base is more flexible to install, and the turnover rate of the I-steel is higher.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: the bolt base is designed, can meet the requirements of strength, rigidity and integrity, is light in weight, low in cost, safe and reliable, convenient to install and detach and capable of being reused.
The technical scheme adopted for solving the technical problems is as follows: in the construction process, the I-steel at the bottom of the frame body is directly fixed on the outer vertical surface of the building engineering by utilizing the pi-shaped steel support and is used together with a wall connecting device which is pre-buried and installed in concrete, so that the whole frame body and the building are ensured to have independent interfaces, and a large number of holes are prevented from being reserved in the building when the I-steel is installed and the frame body is connected with the wall, and the subsequent procedures are restricted.
The pi-shaped steel support comprises a bottom plate, an upper rib plate, a lower rib plate, an upper rib plate side plate, a lower rib plate side plate, an upper rib plate bolt, a lower rib plate bolt and the like, wherein the lower rib plate is welded with the bottom plate, and the upper rib plate is connected with the bottom plate through the bolt.
The pi-shaped steel support is connected with the I-steel through bolts, is connected with the main body concrete structure through expansion bolts, and the scaffold upright rod is arranged on the I-steel.
Compared with the prior art, the utility model has the advantages that: 1) Before construction of a building project, all components of the whole frame body are arranged in advance, so that the work of building the scaffold on site can be smoothly implemented. Meanwhile, a positioning hole of an embedded part (' pi ' -shaped steel support and a wall connecting device ') and a positioning steel bar welded on the I-steel are reserved on the template, so that the accurate positioning and standard erection of the whole frame body in engineering are greatly ensured. 2) When the whole overhanging frame body is constructed, the rest is installed in a tool mode except for chemical bolts, and the whole overhanging frame body is fixed by bolts, so that applicability of the whole overhanging frame body is stronger than that of a traditional scaffold. Meanwhile, aiming at the lighting well and the overhanging structure position on the upper part in the engineering, the normal anchoring can be realized only by adjusting the length of the I-steel without other special treatment. The method avoids the condition of irregular construction caused by ultra-long anchoring, and improves the safety of the frame body. 3) After the erection is finished, the stress of the components of the whole frame body is reasonable, and the components do not need to extend into the building, so that the influence on subsequent masonry, hydroelectric installation and well construction is avoided, the repair of later-stage holes and the construction of throwing contents are reduced, the construction period is greatly shortened, the integrity of a building main body is ensured, and the construction quality is improved. Meanwhile, after the frame body is removed in the later stage, all the components can be stacked in a classified mode, and the painting can be reused after being protected. After the outer frame is dismantled and the embedded round steel is cut off, the outer wall construction can be directly carried out without special treatment.
Drawings
FIG. 1 is a plan view of a "pi" shaped steel support of the present utility model.
FIG. 2 is a side elevation view of the "pi" shaped steel support of the present utility model.
FIG. 3 is a schematic view of a wall-attached node of the pi-shaped steel support of the utility model.
Detailed Description
The construction process comprises the steps of early construction preparation (floor slab or Liang Mantang frames, formwork support and steel bar binding are completed), U-shaped bolt installation, structural slab or beam concrete pouring, large cantilever steel beam welding of vertical short rods and inclined strut support rods, large cantilever steel beam installation, U-shaped bolt fastening system installation, cantilever scaffold erection, cantilever scaffold dismantling, large cantilever steel beam dismantling and embedded anchor ring dismantling.
The utility model is described in further detail below in conjunction with the drawings.
FIG. 1 is a plan view of a "pi" shaped steel support of the present utility model. The pi-shaped steel support comprises a bottom plate (1), an upper rib plate (3), a lower rib plate (2), an upper rib plate side plate (10), a lower rib plate side plate (11), an upper rib plate bottom plate (8), a lower rib plate bottom plate (9), an upper rib plate bolt (4), a lower rib plate bolt (5), an expansion bolt preformed hole (13), a wall connecting piece preformed hole (14), a welding seam (12) between the lower rib plate bottom plate (9) and the bottom plate (1), a connecting bolt (6) between the upper rib plate bottom plate (8) and the bottom plate (1) and a bolt preformed hole (7) on the bottom plate (1). The diameter of a bolt reserved hole (7) on the bottom plate (1) is larger than the diameter of a nut of a connecting bolt (6) between the upper rib plate bottom plate (8) and the bottom plate (1), and the depth of the reserved hole (7) is larger than the height of the nut of the connecting bolt (6) between the upper rib plate bottom plate (8) and the bottom plate (1).
FIG. 2 is a side elevation view of the "pi" shaped steel support of the present utility model. The pi-shaped steel support comprises a bottom plate (1), an upper rib plate (3), a lower rib plate (2), an upper rib plate side plate (10), a lower rib plate side plate (11), an upper rib plate bottom plate (8), a lower rib plate bottom plate (9), an upper rib plate bolt (4), a lower rib plate bolt (5), a welding line (12) between the lower rib plate bottom plate (9) and the bottom plate (1), a connecting bolt (6) between the upper rib plate bottom plate (8) and the bottom plate (1) and a bolt reserved hole (7) on the bottom plate (1). The diameter of a bolt reserved hole (7) on the bottom plate (1) is larger than the diameter of a nut of a connecting bolt (6) between the upper rib plate bottom plate (8) and the bottom plate (1), and the depth of the reserved hole (7) is larger than the height of the nut of the connecting bolt (6) between the upper rib plate bottom plate (8) and the bottom plate (1).
FIG. 3 is a schematic illustration of a wall-attached node of the "pi" steel support of the present utility model. The pi-shaped steel support is connected with the I-steel (15) through bolts (21) of the upper rib plate (3) and bolts (22) of the lower rib plate (2), and the pi-shaped steel support base plate (1) is connected with the main concrete structure (19) through expansion bolts (23), reserved steel bars (18) in the main structure (19) and nuts (20). The scaffold upright (16) is arranged on the I-shaped steel (15), and the positioning steel bar (17) of the scaffold upright (16) is welded on the I-shaped steel (15) to prevent the scaffold from displacing.
Claims (2)
1. The utility model provides a "pi" shape steel support of outer anchor formula scaffold frame of instrument, its characterized in that: the steel support is formed by a bottom
The plate comprises a plate, an upper rib plate, a lower rib plate, an upper rib plate side plate, a lower rib plate side plate, an upper rib plate bottom plate, a lower rib plate bottom plate and bolts;
the lower rib plate bottom plate is welded with the bottom plate;
the bottom plate of the upper rib plate is connected with the bottom plate through bolts.
2. The utility model provides a "pi" shape steel support of outer anchor formula scaffold frame of instrument, its characterized in that: the steel support is connected with the I-steel through an upper rib plate bolt and a lower rib plate bolt;
the steel support bottom plate is connected with reserved steel bars and nuts in the main body structure;
and scaffold upright rod positioning steel bars are welded on the I-steel to prevent the scaffold from being displaced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320291539.1U CN219587189U (en) | 2023-02-23 | 2023-02-23 | Pi-shaped steel support of tool-type outer anchor cantilever scaffold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320291539.1U CN219587189U (en) | 2023-02-23 | 2023-02-23 | Pi-shaped steel support of tool-type outer anchor cantilever scaffold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219587189U true CN219587189U (en) | 2023-08-25 |
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ID=87697141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320291539.1U Active CN219587189U (en) | 2023-02-23 | 2023-02-23 | Pi-shaped steel support of tool-type outer anchor cantilever scaffold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219587189U (en) |
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2023
- 2023-02-23 CN CN202320291539.1U patent/CN219587189U/en active Active
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