CN110656762B - Three-section type pull rod overhanging outer scaffold and construction method thereof - Google Patents
Three-section type pull rod overhanging outer scaffold and construction method thereof Download PDFInfo
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- CN110656762B CN110656762B CN201910911368.6A CN201910911368A CN110656762B CN 110656762 B CN110656762 B CN 110656762B CN 201910911368 A CN201910911368 A CN 201910911368A CN 110656762 B CN110656762 B CN 110656762B
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- 238000010276 construction Methods 0.000 title claims abstract description 39
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 62
- 239000010959 steel Substances 0.000 claims abstract description 62
- 238000009434 installation Methods 0.000 claims abstract description 19
- 230000000149 penetrating effect Effects 0.000 claims description 21
- 238000005452 bending Methods 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 abstract description 17
- 238000009435 building construction Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000000926 separation method Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/20—Scaffolds essentially supported by building constructions, e.g. adjustable in height supported by walls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/18—Scaffolds essentially supported by building constructions, e.g. adjustable in height supported by cantilevers or other provisions mounted in openings in the building, e.g. window openings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/04—Means for fastening, supporting, or bracing scaffolds on or against building constructions
- E04G5/046—Means for fastening, supporting, or bracing scaffolds on or against building constructions for fastening scaffoldings on walls
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
- Movable Scaffolding (AREA)
Abstract
The invention relates to a three-section type pull rod cantilever outer scaffold and a construction method thereof. The adjusting plate is bent to form an upper section panel and a lower section panel, bolt fixing holes are formed in the center of the upper section panel, bolt adjusting holes are uniformly formed in the lower section panel along the length of the plate, and an upper connecting plate is arranged at the other end of the upper pull rod. During construction, through pre-buried sleeve pipe in the building wall to cooperation screw rod, nut fixed connection regulating plate and shaped steel encorbelments, with the bolt regulation hole locking connection of upper junction plate and regulating plate, readjustment basket bolt makes the pull rod subassembly taut, accomplishes the installation of encorbelment outer scaffold frame promptly, and the construction is comparatively convenient, reliable, and length is easy to adjust, and application scope is wide.
Description
Technical Field
The invention relates to an overhanging scaffold in the field of building construction, in particular to a three-section pull rod overhanging outer scaffold and a construction method thereof.
Background
At present, in multi-layer and high-rise building engineering, the overhanging scaffold is an indispensable safety protection measure and an operation table, and directly influences personal safety of workers, and engineering construction quality and efficiency. For example, the utility model discloses an assembled steel overhanging scaffold, which mainly comprises an overhanging steel part and a pull rod assembly, wherein the pull rod assembly comprises a wall attaching angle adjusting piece, an upper pull rod, a basket bolt and a lower pull rod, the wall attaching angle adjusting piece is fixedly connected with a building structure through a counter-pull bolt and a nut, one end of the upper pull rod is connected with the wall attaching angle adjusting piece through a bolt and a nut, the other end of the upper pull rod is in threaded connection with one end of the basket bolt, the other end of the basket bolt is in threaded connection with one end of the lower pull rod, and the other end of the lower pull rod is in locking connection with the lifting lug plate through a bolt and a nut. Above-mentioned pull rod assembly, though it is comparatively convenient to connect, and can realize length adjustment, but length adjustment is comparatively limited, can only realize 350mm within range's regulation generally, and has stricter requirement to the building facade during the installation, if the building facade pattern is comparatively special or the layer height change is great, then this kind of pull rod assembly often is more difficult to be suitable for. For example, when the window is in a building position, the window is not always regular in shape corresponding to the outer wall surface of the building, and cannot be directly connected with the pull rod assembly, so that the window is required to be opened at the structure position of the window, and the window can be connected with the pull rod assembly, but the opening position is required to be repaired later, and the leakage risk exists. In order to solve the problem, the pull rod assembly is required to extend into the building along the bay window and be fixed with the inner side surface of the building wall, and in such a way, the situation that the length of the pull rod assembly is not adjusted enough is often encountered, and the application range is limited.
In addition to the above problems, the installation construction of the existing overhanging outer scaffold has the following problems: 1. the embedded sleeve connected with the overhanging section steel is easy to cause position deviation due to concrete vibration and the like in building construction, so that the overhanging section steel cannot be installed. 2. The lifting lug used for connecting the pull rod assembly on the overhanging section steel is welded and fixed with the overhanging section steel, and if the lifting lug is disconnected due to unreliable welding, safety accidents are easy to occur.
Based on the above problems, the existing overhanging outer scaffold structure and construction are to be further improved.
Disclosure of Invention
In order to overcome the defects, the invention aims to provide the three-section type pull rod overhanging outer scaffold and the construction method thereof for solving the technical problems that the installation of the existing similar overhanging outer scaffold is greatly influenced by a building structure, the length adjustment of a pull rod assembly is relatively limited, the overhanging section steel is more in specification and difficult to install, and the reliability of the whole structure of the outer scaffold is finally influenced. The aim is achieved by the following technical scheme.
The utility model provides a three-section pull rod outer scaffold that encorbelments, this outer scaffold that encorbelments includes pull rod subassembly and the shaped steel of encorbelments, and the pull rod subassembly includes pull rod, basket of flowers bolt, pull rod down, and basket of flowers bolt both ends threaded connection goes up pull rod one end and pull rod one end down respectively, and the shaped steel that encorbelments is equipped with the lug along the upper edge, and the lug passes through bolt, nut locking connection with the lower connecting plate of pull rod one end down, and shaped steel one end welding of encorbelmenting is equipped with the connecting plate of taking the connecting hole. The outer scaffold is characterized in that the outer scaffold also comprises an adjusting plate, the adjusting plate is bent to form an upper section panel and a lower section panel, bolt fixing holes are formed in the center of the upper section panel, bolt adjusting holes are uniformly formed in the lower section panel along the length of the plate, an upper connecting plate is arranged at the other end of the upper pull rod, and the upper connecting plate is in locking connection with one of the bolt adjusting holes of the adjusting plate through bolts and nuts. In the structure, the adjusting plate, the upper pull rod, the basket bolt and the lower pull rod form a three-section adjusting structure, and the bending form of the adjusting plate is suitable for stretching into the inner side of a special building part to perform fixing construction, such as stretching into the inner side of a bay window to perform fixing construction. The bolt adjusting holes are designed on the adjusting plate, so that the length adjustment between the upper pull rod and the adjusting plate is increased, the adjusting length of the whole pull rod assembly is increased to 650mm from 350mm originally, the adjusting plate is firstly adopted for rough adjustment, then the basket screw is utilized for fine adjustment, the length requirement that the pull rod assembly needs to extend into a building for installation is met, the change of the building layer height is applicable, the installation application range is improved, the whole installation construction of the overhanging outer scaffold is facilitated, and the whole reliability and firmness of the outer scaffold are guaranteed.
The lower section panel of regulating plate is equipped with one row of bolt regulation hole and replaces the waist formula regulating hole that is equipped with one rectangular shape for the lower section panel, and the face of this lower section panel is equipped with anti-skidding tooth muscle, pass through bolt, nut locking connection between the upper junction plate of upper pull rod and the waist formula regulating hole, and press from both sides between upper junction plate and the panel that waist formula regulating hole is located and set up anti-skidding backing plate, the face of anti-skidding backing plate be equipped with anti-skidding tooth muscle forms the tooth face of meshing limited slip to and be used for connecting bolt's bolt hole, when bolt, nut are with upper junction plate, anti-skidding backing plate, lower section panel locking, form the limited slip locking state between anti-skidding backing plate and the lower section panel. Through this structure, can realize equally that the regulating plate and go up the link length between the pull rod and adjust and use more convenient, nimble.
The lifting lug position of the overhanging section steel is provided with an auxiliary supporting sleeve sleeved on the overhanging section steel, the top of the auxiliary supporting sleeve is provided with clamping plates used for clamping the two side faces of the lifting lug, the clamping plates and the lifting lug are in locking connection with the lower connecting plate of the lower pull rod through the same bolt and the nut, and the clamping plates clamp the lifting lug during locking connection. Through this structure, improve the stability of encorbelmenting of shaped steel, prevent to hang the problem of inefficacy to the shaped steel that encorbelments because of lug unwelding etc. to can reduce the specification and the quantity that encorbelments shaped steel used to a certain extent.
The included angle between the upper section panel and the lower section panel in the adjusting plate is 140-165 degrees. The angle range is basically suitable for the installation and construction of overhanging outer scaffold of various building walls.
A construction method of a three-section pull rod overhanging outer scaffold is characterized in that the overhanging outer scaffold and a building wall surface are subjected to overhanging support and fixing. The construction method comprises the steps of embedding sleeves in a building wall, wherein the embedding sleeves comprise an embedding sleeve A for aligning and connecting bolt fixing holes of upper section panels of the adjusting plates and an embedding sleeve B for aligning and connecting holes in connecting plates at one ends of overhanging section steel, and the embedding sleeves B are arranged in pairs in parallel, and the construction method comprises the following steps:
firstly, supporting overhanging section steel to corresponding installation positions by erecting a lower layer outer scaffold;
Secondly, a screw rod B is connected in the embedded sleeve B in a penetrating way, one end of the screw rod B extends out of the embedded sleeve B and then is connected with a base plate B in a penetrating way, a connecting nut is locked and limited, the other end of the screw rod B extends out of the embedded sleeve B and then is connected with a connecting hole of a connecting plate at one end of the overhanging section steel in a penetrating way, and the connecting nut is locked, namely the overhanging section steel and a building wall surface are fixed through the screw rod B, the base plate B and the nuts at two ends;
thirdly, welding a positioning steel bar for inserting an upper outer scaffold above the overhanging section steel;
Fourthly, locking and connecting the lifting lug on the upper edge of the overhanging section steel with the lower connecting plate of the lower pull rod through a bolt and a nut, wherein the other end of the lower pull rod is in threaded connection with one end of a basket bolt, and the other end of the basket bolt is in threaded connection with one end of the upper pull rod;
Fifthly, installing an adjusting plate, enabling a bolt fixing hole of the upper plate surface of the adjusting plate to be aligned with the embedded sleeve A, penetrating a screw A in the embedded sleeve A, penetrating a backing plate A after one end of the screw A extends out of the embedded sleeve A, connecting a nut to lock and limit, penetrating a bolt fixing hole of the upper section panel of the adjusting plate after the other end of the screw A extends out of the embedded sleeve A, locking a connecting nut, namely fixing the adjusting plate and a building wall surface through the screw A, the backing plate A and nuts at two ends;
sixthly, adjusting the turnbuckle of the pull rod assembly, so that an upper connecting plate of the upper pull rod is in locking connection with a corresponding bolt adjusting hole in the adjusting plate through a bolt and a nut, and after the locking connection, adjusting the turnbuckle again, and keeping the upper pull rod and the lower pull rod in a tensioning state;
and seventhly, checking and adjusting the connection tightness state of each connection part, and dismantling the lower outer scaffold to finish the installation construction of the overhanging outer scaffold.
Further, a cushion block is arranged between the adjusting plate and the building wall surface, the cushion block is provided with a caulking groove embedded in the upper section panel of the adjusting plate, and a through hole penetrating through the screw A, and the cushion block is clamped and fixed between the adjusting plate and the building wall surface along with the screw A and the corresponding nut when being locked. Through this structure, improve the fastening effect between regulating plate and the wall, prevent not hard up, and be difficult for forming the destruction to the building appearance.
When the adjusting plate is fixed on a building wall surface, when the bending part of the adjusting plate meets the external corner position of the building, an angle pad is arranged between the external corner position and the bending part of the adjusting plate. By this construction, an effective protection is formed for the external corner position of the building.
The embedded sleeve A and the embedded sleeve B are axially provided with at least two radial clamping ribs, namely limit is formed on the axial direction of the embedded sleeve A and the embedded sleeve B in the building wall through the clamping ribs. Through this mode, the stability and the firmness of pre-buried sleeve A, B in the building wall body are improved.
Before the embedded sleeves B are embedded, the two embedded sleeves B are limited in the same fixing clamping piece in parallel, and the fixing clamping piece is embedded in the building wall body along with the embedded sleeves B; the connecting plate of the overhanging section steel is provided with connecting holes which are in butt joint with the two embedded sleeves, and one connecting hole is a waist-shaped adjusting hole. Through this structure, guarantee that pre-buried sleeve B is pre-buried when in the building wall, guarantee the depth of parallelism of two pre-buried sleeve B, and the connection between connecting plate and the pre-buried sleeve B of the shaped steel of conveniently encorbelmenting.
The invention has the advantages of simple integral construction and installation structure, convenient installation and operation, wider length adjustment range of the pull rod assembly and wider application range of the installation position of the overhanging outer scaffold, and is suitable for being used as the overhanging outer scaffold in various building constructions or the structural improvement of similar construction methods.
Drawings
Fig. 1 is a perspective view of a construction structure of the present invention.
Fig. 2 is a schematic view of a construction plan structure of the present invention.
Fig. 3 is a schematic view of the structure of the installation of the adjusting plate of the present invention.
Fig. 4 is a schematic structural diagram of an improved structure of the connection between the adjusting plate and the upper pull rod.
Fig. 5 is a schematic structural view of the cantilever steel of the present invention with an additional auxiliary support sleeve.
Fig. 6 is a schematic view of the separation structure of the overhanging type steel and the auxiliary supporting sleeve.
Fig. 7 is a schematic structural view of the end face of the overhanging type steel connecting plate of the invention.
Fig. 8 is a schematic structural view of the pre-buried sleeve B of the present invention limited to the fixing clip.
The serial numbers and names in the figures are: 1. building wall, 101, bay window part, 2, upper pull rod, 201, upper connecting plate, 3, basket bolt, 4, lower pull rod, 401, lower connecting plate, 5, regulating plate, 501, upper panel, 502, lower panel, 503, bolt fixing hole, 504, bolt regulating hole, 505, waist-shaped regulating hole, 506, anti-slip tooth bar, 6, cushion block, 601, caulking groove, 7, overhanging section steel, 701, lifting lug, 702, connecting plate, 7021, regulating hole, 8, positioning steel bar, 9, lower layer outer scaffold, 10, pre-buried sleeve A,11, screw A,12, backing plate A,13, corner pad, 14, pre-buried sleeve B,15, screw B,16, backing plate B,17, anti-slip backing plate, 18, auxiliary supporting sleeve, 1801, clamping plate, 19 and fixing clamp.
Detailed Description
The invention will now be further described with reference to the accompanying drawings.
As shown in fig. 1 and 2, the three-section pull rod overhanging outer scaffold mainly comprises a pull rod assembly and overhanging section steel 7, wherein the pull rod assembly comprises an adjusting plate 5, an upper pull rod 2, a basket bolt 3 and a lower pull rod 4, two ends of the basket bolt are respectively connected with one end of the upper pull rod and one end of the lower pull rod in a threaded manner, a lifting lug 701 is arranged on the upper edge of the overhanging section steel, the lifting lug is connected with a lower connecting plate 401 at one end of the lower pull rod in a locking manner through bolts and nuts, and a connecting plate 702 with a connecting hole is welded at one end of the overhanging section steel. The regulating plate is a two-section panel formed by bending, and is divided into an upper section panel 501 and a lower section panel 502, wherein the included angle between the upper section panel and the lower section panel is 140-165 degrees, preferably 145-160 degrees, bolt fixing holes 503 are formed in the center of the upper section panel, bolt regulating holes 504 are uniformly formed in the lower section panel along the length of the panel, an upper connecting plate 201 is arranged at the other end of the upper pull rod, and the upper connecting plate is in locking connection with one of the bolt regulating holes of the regulating plate through bolts and nuts.
Based on the above structure, the construction method of the present invention will be described below by way of specific examples:
As shown in fig. 1, 2, 7 and 8, the construction position is exemplified by a building wall 1 and a bay window part 101, the outside surface of the bay window part forms a concave cavity, and the drawing comprises an upper bay window part and a lower bay window part. When the window part and the building wall are poured, the pre-embedding construction of the pre-embedding sleeve A10 and the pre-embedding sleeve B14 is carried out in advance according to the erection requirement of the cantilever type steel outer scaffold, in fig. 1, the pre-embedding sleeve A is pre-embedded in the upper window part wall surface and the side building wall part at the same height position, and the pre-embedding sleeve B is pre-embedded in the lower window part wall surface and the side building wall part at the same height position. When the embedded sleeves B are arranged in parallel in pairs, the two embedded sleeves B are firstly limited in the fixing clamping piece 19 in parallel, and then the fixing clamping piece and the embedded sleeves B are embedded into the corresponding wall body. The fixing clamping piece adopts a structure with symmetrical clamping openings, and the embedded sleeve B is clamped and positioned in the clamping openings. And then the overhanging section steel 7 and the pull rod assembly are installed, wherein the connecting plate 702 of the overhanging section steel is provided with two connecting holes which are connected with the two embedded sleeves B14 in an alignment way, and one connecting hole is a waist-shaped adjusting hole 7021, so that the connection alignment operation is convenient. The concrete installation construction steps of the cantilever type steel outer scaffold are as follows:
firstly, building a lower outer scaffold 9, and supporting two overhanging section steel 7 to corresponding installation positions through the lower outer scaffold; the actual construction is not limited to two overhanging section steel, and two sections are selected in the embodiment for convenience of description.
Secondly, a screw rod B15 is connected in the embedded sleeve B14 in a penetrating way, one end of the screw rod B extends out of the embedded sleeve B and then is connected with a base plate B16 in a penetrating way, a connecting nut is locked and limited, the other end of the screw rod B extends out of the embedded sleeve B and then is connected with a connecting hole of a connecting plate 702 at one end of the overhanging section steel 7 in a penetrating way, and the connecting nut is locked, namely the overhanging section steel and a building wall surface are fixed through the screw rod B, the base plate B and the nuts at the two ends;
Thirdly, welding a positioning steel bar 8 for inserting an upper outer scaffold above the overhanging section steel 7;
And fourthly, two overhanging section steel 7 are correspondingly connected with a pull rod assembly respectively, and the lifting lug 701 on the upper edge of the overhanging section steel is in locking connection with the lower connecting plate 401 of the lower pull rod 4 of the corresponding pull rod assembly through bolts and nuts. One of the pull rod assemblies extends into the inner side of the building wall from the space part between the upper and lower bay window parts 101, namely, the adjusting plate 5 in the pull rod assembly is correspondingly connected with the inner side surface of the bay window part. The other one is connected to the outer wall surface of the building wall body, namely, the adjusting plate in the pull rod assembly is correspondingly connected to the outer wall surface of the building wall body;
fifthly, installing an adjusting plate 5, wherein a screw A11 is connected in a corresponding embedded sleeve A10 in a penetrating way, one end of the screw A extends out of the embedded sleeve A and then is connected with a backing plate A12 in a penetrating way, a connecting nut is locked and limited, the other end of the screw A extends out of the embedded sleeve A and then is connected with a bolt fixing hole 503 of an upper section panel 501 of the adjusting plate in a penetrating way, and a connecting nut is locked, namely the adjusting plate and a building wall surface are fixed through the screw A, the backing plate A and nuts at two ends;
Sixthly, adjusting the basket bolts 3 in each pull rod assembly, so that the upper connecting plate 201 of the upper pull rod 2 is in locking connection with a corresponding bolt adjusting hole 504 in the adjusting plate 5 through bolts and nuts, and after locking connection, adjusting the basket bolts again, and keeping the upper pull rod and the lower pull rod in a tensioning state;
And seventh, checking and adjusting the connection tightness state of each connection part, and dismantling the lower outer scaffold 9 to finish the installation construction of the overhanging outer scaffold.
In the construction process, when the adjusting plate 5 is fixed on a building wall surface, and the bending part of the adjusting plate meets the external corner position of the building, the corner pad 13 is arranged between the external corner position and the bending part of the adjusting plate, so that the external corner position of the building is effectively protected.
As shown in fig. 4, the lower panel 502 of the adjusting plate 5 may also be designed to have a strip-shaped waist-shaped adjusting hole 505 on the lower panel, and the panel surface of the lower panel is provided with an anti-slip tooth bar 506, the upper connecting plate 201 of the upper pull rod 2 is locked and connected with the waist-shaped adjusting hole by a bolt and a nut, and an anti-slip pad 17 is clamped between the upper connecting plate and the panel where the waist-shaped adjusting hole is located, the panel surface of the anti-slip pad is provided with a tooth surface engaged with the anti-slip tooth bar to form an anti-slip, and a bolt hole is used for connecting the bolt, when the bolt and the nut lock the upper connecting plate, the anti-slip pad and the lower panel, an anti-slip locking state is formed between the anti-slip pad and the lower panel. Through this structure, can realize equally that the regulating plate and go up the link length between the pull rod and adjust and use more convenient, nimble.
As shown in fig. 5 and 6, in order to prevent the problem of suspension failure of the overhanging section steel due to the unwelding of the lifting lug 701 of the overhanging section steel 7, an auxiliary supporting sleeve 18 may be designed, and a clamping plate 1801 for clamping two sides of the lifting lug is arranged at the top of the auxiliary supporting sleeve, and the clamping plate and the lifting lug are in locking connection with the lower connecting plate 401 of the lower pull rod 4 through the same bolt and nut, and when in locking connection, the clamping plate clamps the lifting lug, and the auxiliary supporting sleeve plays an auxiliary supporting role on the overhanging section steel. When the lifting lug and the overhanging section steel are subjected to off-welding fracture, the auxiliary supporting sleeve can lock the overhanging section steel, so that the overhanging section steel is prevented from suspension failure, and the construction safety is ensured.
As shown in fig. 3, in order to improve the fastening effect between the adjusting plate 5 and the building wall surface, a cushion block 6 can be arranged between the adjusting plate and the building wall surface, the cushion block is provided with a caulking groove 601 for embedding the upper panel of the adjusting plate and a through hole for penetrating through the screw rod a11, and the cushion block is clamped and fixed between the adjusting plate and the building wall surface when being locked with the corresponding nut along with the screw rod a. Through the cushion, increase area of contact, it is more reliable to connect.
In order to improve the firmness and stability of the embedded sleeve A10 and the embedded sleeve B14 during embedding, the embedded sleeve A and the embedded sleeve B are respectively provided with at least two radial clamping ribs along the axial direction, namely the axial limit is formed on the embedded sleeve in the building wall 1 through the clamping ribs.
The above description is intended to illustrate the technical means of the present invention, and not to limit the technical scope of the present invention. Obvious modifications or substitutions by one with ordinary skill in the art are within the scope of the present invention as defined by the appended claims.
Claims (9)
1. The three-section type pull rod overhanging outer scaffold comprises a pull rod assembly and overhanging section steel (7), wherein the pull rod assembly comprises an upper pull rod (2), a basket bolt (3) and a lower pull rod (4), two ends of the basket bolt are respectively connected with one end of the upper pull rod and one end of the lower pull rod in a threaded manner, a lifting lug (701) is arranged on the upper edge of the overhanging section steel, the lifting lug is in locking connection with a lower connecting plate (401) at one end of the lower pull rod through a bolt and a nut, and a connecting plate with a connecting hole is welded at one end of the overhanging section steel; the cantilever outer scaffold is characterized by further comprising an adjusting plate (5), wherein the adjusting plate is bent to form an upper section panel (501) and a lower section panel (502), bolt fixing holes (503) are formed in the center of the upper section panel, bolt adjusting holes (504) are uniformly formed in the lower section panel along the length of the plate, an upper connecting plate (201) is arranged at the other end of the upper pull rod (2), and the upper connecting plate is in locking connection with one of the bolt adjusting holes of the adjusting plate through bolts and nuts.
2. The three-section pull rod overhanging outer scaffold according to claim 1, characterized in that a lower section panel (502) of the adjusting plate (5) is provided with a row of bolt adjusting holes (504) and replaced by a lower section panel provided with a strip-shaped waist-shaped adjusting hole (505), the panel surface of the lower section panel is provided with anti-slip tooth ribs (506), an upper connecting plate (201) of the upper pull rod (2) is locked and connected with the waist-shaped adjusting hole through bolts and nuts, an anti-slip base plate (17) is clamped between the upper connecting plate and the panel where the waist-shaped adjusting hole is located, the panel surface of the anti-slip base plate is provided with tooth surfaces which are meshed with the anti-slip tooth ribs, and bolt holes for connecting bolts are used for forming an anti-slip locking state between the anti-slip base plate and the lower section panel when the upper connecting plate, the anti-slip base plate and the lower section panel are locked by the bolts and nuts.
3. The three-section type pull rod cantilever outer scaffold according to claim 1, characterized in that an auxiliary supporting sleeve (18) sleeved on the cantilever profile is arranged at the position of a lifting lug (701) of the cantilever profile (7), clamping plates (1801) used for clamping two sides of the lifting lug are arranged at the top of the auxiliary supporting sleeve, the clamping plates and the lifting lug are in locking connection with a lower connecting plate (401) of the lower pull rod (4) through the same bolt and the same nut, and the clamping plates clamp the lifting lug when in locking connection.
4. The three-section pull rod overhanging outer scaffold according to claim 1, characterized in that the included angle between the upper section panel (501) and the lower section panel (502) in the adjusting plate (5) is 140-165 degrees.
5. A construction method of the three-section pull rod overhanging outer scaffold according to claim 1, wherein the overhanging outer scaffold and a building wall surface are subjected to overhanging support and fixation; the construction method is characterized by comprising pre-buried sleeves pre-buried in a building wall, wherein the pre-buried sleeves comprise pre-buried sleeves A (10) used for connecting bolt fixing holes of upper section panels of the adjusting plates (5) in an aligned manner, and pre-buried sleeves B (14) used for connecting holes in connecting plates at one ends of overhanging section steel (7) in an aligned manner, and the pre-buried sleeves B are arranged in parallel in pairs, and the construction method comprises the following steps:
Firstly, supporting overhanging section steel (7) to corresponding installation positions by erecting a lower layer outer scaffold (9);
secondly, a screw rod B (15) is connected in the embedded sleeve B (14) in a penetrating way, one end of the screw rod B extends out of the embedded sleeve B and then is connected with a base plate B (16) in a penetrating way, a connecting nut is connected with a locking limit, the other end of the screw rod B extends out of the embedded sleeve B and then is connected with a connecting hole of a connecting plate at one end of the overhanging section steel in a penetrating way, and the connecting nut is locked, namely the overhanging section steel and a building wall surface are fixed through the screw rod B, the base plate B and nuts at two ends;
thirdly, welding a positioning steel bar for inserting an upper outer scaffold above the overhanging section steel;
Fourthly, locking and connecting a lifting lug (701) on the upper edge of the overhanging section steel with a lower connecting plate (401) of the lower pull rod (4) through bolts and nuts, wherein the other end of the lower pull rod is in threaded connection with one end of a basket bolt (3), and the other end of the basket bolt is in threaded connection with one end of an upper pull rod (2);
Fifthly, installing an adjusting plate (5), aligning a bolt fixing hole (503) on the upper plate surface of the adjusting plate with the embedded sleeve A (10), connecting a screw A (11) in the embedded sleeve A in a penetrating way, extending one end of the screw A out of the embedded sleeve A, connecting a base plate A (12) in a penetrating way, locking and limiting a connecting nut, extending the other end of the screw A out of the embedded sleeve A, connecting the bolt fixing hole (503) of the upper section panel (501) of the adjusting plate in a penetrating way, and locking the connecting nut, namely fixing the adjusting plate with a building wall surface through the screw A, the base plate A and nuts at two ends;
Sixthly, adjusting the turnbuckle of the pull rod assembly, so that an upper connecting plate of the upper pull rod is in locking connection with a corresponding bolt adjusting hole (504) in the adjusting plate through a bolt and a nut, and after the locking connection, adjusting the turnbuckle again, and keeping the upper pull rod and the lower pull rod in a tensioning state;
and seventhly, checking and adjusting the connection tightness state of each connection part, and dismantling the lower outer scaffold to finish the installation construction of the overhanging outer scaffold.
6. The construction method of the three-section pull rod overhanging outer scaffold according to claim 5, characterized in that a cushion block (6) is arranged between the adjusting plate (5) and the building wall surface, the cushion block is provided with a caulking groove (601) embedded with an upper section panel (501) of the adjusting plate, and a through hole penetrating through the screw rod A (11), and the cushion block is clamped and fixed between the adjusting plate and the building wall surface when the screw rod A is locked with a corresponding nut.
7. The construction method of the three-section type pull rod overhanging outer scaffold according to claim 5, characterized in that when the adjusting plate (5) is fixed on a building wall, a corner pad (13) is arranged between the outer corner position and the bending position of the adjusting plate when the bending position meets the outer corner position of the building.
8. The construction method of the three-section type pull rod overhanging outer scaffold according to claim 5, characterized in that the embedded sleeve A (10) and the embedded sleeve B (14) are respectively provided with at least two radial clamping ribs along the axial direction, namely, limit is formed on the axial direction of the embedded sleeve A and the embedded sleeve B in the building wall body through the clamping ribs.
9. The construction method of the three-section pull rod overhanging outer scaffold according to claim 5, characterized in that before the embedding of the embedded sleeve B (14), the two embedded sleeves B are parallel limited in the same fixed clamping piece (19), and the fixed clamping piece is embedded in a building wall together with the embedded sleeve B; the connecting plate (702) of the overhanging section steel (7) is provided with connecting holes which are in butt joint with two embedded sleeves, and one connecting hole is a waist-shaped adjusting hole (7021).
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| CN111089787A (en) * | 2020-02-12 | 2020-05-01 | 佛山科学技术学院 | Impact pendulum device |
| CN112796529B (en) * | 2020-12-30 | 2022-11-25 | 湖南筑睿重工科技有限公司 | Adjustable overhanging discharging steel framework of limiting support |
| CN113309331B (en) * | 2021-05-31 | 2022-05-27 | 中建七局第一建筑有限公司 | Cantilever frame |
| CN113530194A (en) * | 2021-07-14 | 2021-10-22 | 上海建工七建集团有限公司 | Construction method of scaffold |
| CN114892981A (en) * | 2022-05-29 | 2022-08-12 | 中国五冶集团有限公司 | Method for arranging double pull rods of profile steel main beam with ultra-long overhanging structure |
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| JP2933547B2 (en) * | 1996-10-09 | 1999-08-16 | ショーボンド建設株式会社 | Assembly structure of hanging scaffold |
| KR200410241Y1 (en) * | 2005-12-21 | 2006-03-07 | 주식회사 근하기공 | Gang Form Angle and Hight Adjust Apparatus of Guide Climbing System |
| CN202370233U (en) * | 2011-08-15 | 2012-08-08 | 成都市第六建筑工程公司 | Pull rod type external wall cantilever discharging platform setting-up structure |
| CN203961238U (en) * | 2014-07-22 | 2014-11-26 | 四川省第十五建筑有限公司 | Bolt anchor slab adjustable tool formula builder's jack |
| CN204738516U (en) * | 2015-02-10 | 2015-11-04 | 中国十七冶集团有限公司 | Modular supporting rack device |
| CN108590147A (en) * | 2018-06-08 | 2018-09-28 | 宁波建工工程集团有限公司 | Assembling the shaped steel suspension scaffolding and its construction method |
| CN209244222U (en) * | 2018-10-30 | 2019-08-13 | 中国建筑第四工程局有限公司 | A kind of basket type builder's jack |
| CN109555300A (en) * | 2018-12-27 | 2019-04-02 | 上海建工二建集团有限公司 | Overhanging scaffold |
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