CN114046030A - Connection construction method of cantilever outer frame - Google Patents
Connection construction method of cantilever outer frame Download PDFInfo
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- CN114046030A CN114046030A CN202111341032.4A CN202111341032A CN114046030A CN 114046030 A CN114046030 A CN 114046030A CN 202111341032 A CN202111341032 A CN 202111341032A CN 114046030 A CN114046030 A CN 114046030A
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- 238000010276 construction Methods 0.000 title claims abstract description 91
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 98
- 239000010959 steel Substances 0.000 claims abstract description 98
- 238000000034 method Methods 0.000 claims abstract description 28
- 239000004567 concrete Substances 0.000 claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 claims abstract description 17
- 230000009194 climbing Effects 0.000 claims abstract description 9
- 238000002360 preparation method Methods 0.000 claims abstract description 8
- 230000008569 process Effects 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 10
- 229910000746 Structural steel Inorganic materials 0.000 claims description 9
- 239000002023 wood Substances 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 5
- 239000003973 paint Substances 0.000 claims description 4
- 210000005069 ears Anatomy 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 9
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 5
- 241000446313 Lamella Species 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
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- 230000007547 defect Effects 0.000 description 2
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- 230000002035 prolonged effect Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000011449 brick Substances 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
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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
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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)
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- Civil Engineering (AREA)
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Abstract
The invention discloses a connection construction method of an overhanging outer frame, which comprises the following steps: manufacturing a U-shaped precast block: manufacturing a detachable mould box, pouring concrete inwards until the concrete is solidified, detaching the detachable mould box, and taking out the U-shaped precast block; wall construction preparation: chiseling a hole on the surface of a wall body, embedding the U-shaped precast block in the hole, enabling the opening of the U-shaped precast block to be downward, and enabling the outer surface of the U-shaped precast block, far away from the opening, to be abutted against the inner surface of the hole; construction of the cantilever outer frame: the section steel penetrates through the embedded U-shaped precast block through hole, the section steel is connected with the floor slab through a connecting piece, the section steel is provided with support rods in a connecting mode, and a climbing rod is connected between every two adjacent support rods; maintaining the wall body after construction: and after the section steel is removed, filling concrete in the U-shaped precast block in the opening of the wall body. By adopting the method, the strength of the section steel penetrating position of the construction wall body can be treated, and the section steel penetrating position can be filled after construction, so that the later-stage damage, water leakage and the like of the wall body can be reduced.
Description
Technical Field
The invention relates to the technical field of construction and construction of cantilever external frames, in particular to a connection construction method of a cantilever external frame.
Background
With the rapid development of urban construction, high-rise buildings and super high buildings are pulled out of the ground, and key technologies of civil construction promote the vigorous development of the high-rise buildings to a great extent, further accelerate the development process of urban modern construction in China, and simultaneously play a great promoting role in the technological progress of the building industry. At present, in the high-rise building engineering field, adopt overhanging type scaffold frame to compare with scaffold frame that falls to the ground, under the prerequisite of guaranteeing engineering construction safety, have the input cost that reduces, equipment material is few, advantages such as support body factor of safety height, often by numerous construction enterprises as the first-selected scheme that high-rise building construction outrigger was set up.
The structural steel of the overhanging type external scaffold is mostly overhung by adopting I-shaped steel and channel steel, but most parts of the structural steel penetrating through a wall body are not properly treated, so that the phenomena of serious damage of the wall body in the later period, large quality hidden trouble defect, water leakage of inner and outer walls and the like are caused. In order to solve the construction quality problems, unnecessary construction cost and construction period are saved, and the improvement and optimization of the treatment mode of the through-wall joint part of the overhanging type external scaffold is a quality problem which is urgently needed to be solved at present.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a connection construction method of an overhanging outer frame, which can carry out strength treatment on a section steel penetrating position of a construction wall body, and carry out filling treatment on the section steel penetrating position after construction so as to reduce the conditions of later-stage damage, water leakage and the like of the wall body.
The purpose of the invention is realized by the following technical scheme:
a connection construction method of an overhanging outer frame comprises the following steps:
manufacturing a U-shaped precast block: manufacturing a detachable mould box, pouring concrete into the detachable mould box, removing the mould of the detachable mould box after the poured concrete is solidified, and taking out the manufactured U-shaped precast block;
wall construction preparation: chiseling a specified amount of holes on the surface of a wall body, wherein the holes are communicated with the plane of a floor slab, and then embedding the prepared U-shaped precast block in the holes, so that the openings of the U-shaped precast blocks face the plane of the floor slab downwards, and the outer surfaces of the U-shaped precast blocks far away from the openings are abutted against the inner surfaces of the holes;
construction of the cantilever outer frame: the structural steel penetrates through a through opening of a U-shaped precast block buried in a wall opening, one end, located in a house, of the structural steel is connected with a floor slab through a connecting piece, a support rod is connected between upper and lower adjacent structural steel, the support rod is located outside the house, a climbing rod is connected between adjacent support rods in the same height through a hoop, and an integral cantilever external frame structure is formed according to a secondary construction mode;
maintaining the wall body after construction: after the construction is completed, the climbing rods, the support rods and the section steel are detached, and concrete is filled in the U-shaped precast blocks in the hole of the wall body.
Preferably, in the process of manufacturing the U-shaped precast block, the structure of the detachable mold box is as follows: the detachable die box comprises a panel which is arranged in a rectangular shape, four edges of one plane of the panel can be detachably connected with surrounding plates, the surrounding plates are detachably connected with adjacent surrounding plates, a cavity is enclosed by the four surrounding plates, the plane of the panel close to the cavity is detachably connected with a U-shaped plate, the tail end of a U-shaped opening of the U-shaped plate is detachably connected with one of the surrounding plates, a U-shaped cavity is formed between the U-shaped plate and the other three surrounding plates, and the end face of the surrounding plate far away from the panel and the end face of the U-shaped plate far away from the panel are arranged in a coplanar manner; the U-shaped plate comprises two side plates which are opposite to each other and arranged in parallel, the U-shaped opening end of the U-shaped plate is provided with the same middle plate, the middle plate is abutted against the side plates, and the side plates and the middle plate are detachably connected with the panel.
Preferably, the panels, the coamings, the side panels and the intermediate panel are all made of a wooden material.
Further, in the process of manufacturing the U-shaped precast block, a plurality of mutually parallel reinforcing steel bars are arranged along the outline of the U-shaped cavity, then the plurality of arranged reinforcing steel bars are bound and fixed through steel wires, then the U-shaped cavity of the detachable mold box is placed in, and concrete is poured into the detachable mold box.
Further must, in the outrigger work progress, after passing the mouth of the intraoral U type prefabricated section in hole with shaped steel, pack the tight accessory of interference between the opening inner wall of U type prefabricated section and shaped steel surface to preliminary fixed shaped steel.
Further, after the section steel passing through the U-shaped prefabricated section through opening is preliminarily fixed, a plurality of wood wedges are arranged on the top surface of the section steel in a room and are arranged along the length direction of the section steel, the connecting piece is an expansion bolt, and the expansion bolt sequentially penetrates through the wood wedges and the section steel and then is in threaded connection with the floor plane to fix the section steel.
Further, in the process of connecting the support rods between the upper and lower adjacent section steels, the flange pieces are inserted at the two ends of each support rod, the flange pieces of the support rods are respectively connected with the section steels on the upper and lower sides in an attached mode through screws, and finally the flange pieces are connected with the support rods in an attached mode through screws, so that the section steels, the flange pieces and the support rods are kept relatively fixed.
Further, in the process of maintaining the wall body after construction, after concrete is filled in the U-shaped precast blocks in the hole of the wall body, waterproof paint is coated on the two outer surfaces of the wall body and covers the hole,
and further, after the waterproof coating is coated on the surface of the wall body, a steel wire mesh is further laid on the surface of the wall body to cover the hole, and then plastering is carried out on the position, corresponding to the steel wire mesh, of the wall body to cover and fix the steel wire mesh.
Further, after the construction of the cantilever outer frame is completed, the dustproof mesh cloth is finally hung on the surface of the integral cantilever outer frame and covers the surface of the integral cantilever outer frame.
The invention has the following beneficial effects:
a connection construction method of an overhanging outer frame aims to carry out strength treatment on a construction wall section steel penetrating position (a hole drilled on a wall) through the construction method, and carry out filling treatment on the section steel penetrating position after construction so as to reduce the conditions of later-stage damage, water leakage and the like of the wall. The construction method comprises four steps of manufacturing the U-shaped precast block, preparing wall construction, constructing an overhanging outer frame and maintaining the wall after construction, wherein the U-shaped precast block is buried in the hole in the preparation process of the wall construction due to the special shape structure of the U-shaped precast block, and the opening of the U-shaped precast block is arranged downwards, so that the U-shaped precast block is far away from the outer peripheral surface of the opening and is abutted to the inner wall of the hole. Further, in the cantilever outer frame construction process, utilize the part that two shaped steel of connecting piece are located the room to be connected with the floor, thereby realize the effect of the fixed shaped steel of installation, can improve the engaging force between shaped steel and the floor simultaneously, and then alleviate the butt power between the opening inner wall of shaped steel and U type prefabricated section, thereby reduce the impaired condition of U type prefabricated section, and then be convenient for be located outdoor part linking bridge pole and climbing pole at a plurality of shaped steel, and then be convenient for form holistic cantilever outer frame structure. In addition, in the wall body maintenance process after the construction, after shaped steel is taken out at the entrance to a cave, through the intussuseption of the U type prefabricated section in the entrance to a reduction wall body is through the condition of this entrance to a cave and indoor outdoor intercommunication, realizes reducing the problem that the wall body leaks water after the construction from this, and then improves the life expectancy of this wall body.
Drawings
Fig. 1 is a schematic view of a wall surface construction process of the cantilever outrigger of the present invention.
FIG. 2 is a schematic view of the treatment of the wall opening after the construction of the cantilever outrigger of the present invention.
Fig. 3 is a schematic view of the construction process of the wall surface of the cantilever external frame with another view angle.
Fig. 4 is a partial sectional view of a cavity during wall construction of the cantilever outrigger according to the present invention.
Fig. 5 is a structural view of the U-shaped precast block with the reinforcing steel bars and the section steel of the present invention.
FIG. 6 is a diagram of a removable mold box and U-shaped preform of the present invention.
FIG. 7 is a block diagram of the removable mold box of the present invention.
FIG. 8 is an exploded view of the removable mold box of the present invention.
In the figure: 1. a detachable mold box; 11. a panel; 12. enclosing plates; 13. a U-shaped plate; 131. a side plate; 132. a middle plate; 14. a cavity; 141. a U-shaped cavity; 2. a floor slab; 21. a wall body; 22. a hole; 23. steel wire mesh; 3. section steel; 31. an expansion bolt; 32. wood wedge; 33. a flange member; 34. a support rod; 4. a U-shaped precast block; 41. and (5) reinforcing steel bars.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments. In the present specification, the terms "upper", "inner", "middle", "left", "right" and "one" are used for clarity of description only, and are not used to limit the scope of the present invention, and the relative relationship between the terms and the modifications may be regarded as the scope of the present invention without substantial technical changes.
The invention mainly points out that in the connection construction process of the cantilever outer frame, a hole 22 for penetrating the section steel 3 needs to be chiseled on the surface of a building wall 21 of the pre-constructed cantilever outer frame in advance, and then the cantilever outer frame is built on a plurality of section steel 3 extending out of the building after the section steel 3 is installed and fixed. The existing construction process usually does not perform reinforcement treatment on the opening 22 of the wall 21, so that the wall 21 is often damaged. Therefore, the U-shaped precast block 4 with the reinforcing function is buried in the hole 22 of the wall 21 for reinforcement in the construction process, so that the damage to the wall 21 is reduced.
Therefore, before the construction method of the cantilever outrigger of the present invention is described in detail, the structure of the U-shaped precast block 4 and the structure of the detachable mold box 1 for manufacturing the U-shaped precast block 4 will be described in detail, so as to facilitate the subsequent understanding of the construction method of the cantilever outrigger. Wherein, U type prefabricated section 4 is the setting of type U type, and the interior corner of U type prefabricated section 4 all is the right angle setting, and U type prefabricated section 4 is formed by concrete placement usually. Depending on the use, the reinforcing bars 41 may be embedded in the U-shaped precast block 4 to reinforce the structure of the U-shaped precast block 4.
Referring to fig. 6 to 8, the detachable mold box 1 includes a panel 11 in a rectangular arrangement, four edges of one plane of the panel 11 are detachably connected with surrounding plates 12, the surrounding plates 12 are detachably connected with adjacent surrounding plates 12, a cavity 14 is enclosed between the four surrounding plates 12, the plane of the panel 11 close to the cavity 14 is detachably connected with a U-shaped plate 13, the end of a U-shaped opening of the U-shaped plate 13 is detachably connected with one surrounding plate 12, and a U-shaped cavity 141 is formed between the U-shaped plate 13 and the rest three surrounding plates 12. The U-shaped plate 13 and three enclosing plates 12 form a U-shaped cavity 141 by detachably arranging the enclosing plates 12 and the U-shaped plate 13 on the panel 11 and enabling the U-shaped plate 13 to be placed in the cavity 14. Therefore, when the U-shaped precast block 4 is manufactured, concrete can be poured into the U-shaped cavity 141, after the concrete is solidified, the coaming 12 and the U-shaped plate 13 can be detached from the panel 11 one by one, and finally the panel 11 is separated from the preformed U-shaped precast block 4 to finally form the required U-shaped precast block 4, so that the manufacturing and the processing of the U-shaped precast block 4 can be realized through the mold box structure.
Due to the shape problem of the U-shaped plate 13, when the U-shaped plate 13 and the panel 11 are detached, the operation is difficult, and in order to realize the function of facilitating the detachment of the U-shaped plate 13 and the panel 11, the operation is simple. U-shaped board 13 includes two just right just and parallel arrangement's curb plate 131 each other, keeps away from U-shaped board 13 between two curb plates 131U type open-ended end and is provided with same intermediate lamella 132, intermediate lamella 132 simultaneously with two curb plates 131 butts, curb plate 131 and intermediate lamella 132 all can dismantle with panel 11 and be connected. Specifically, the lower portion of the U-shaped plate 13 is divided into two side plates 131 and a middle plate 132, and since the middle plate 132 is in abutting relationship with the two side plates 131, the middle plate 132 and the side plates 131 are both detachably connected with the panel 11. Therefore, after the U-shaped precast block 4 is solidified and the coaming 12 is removed, the side plates 131 or the middle plate 132 and the panel 11 can be removed one by one, compared with the integral removing mode of the U-shaped plate 13, the mode of removing the side plates 131 and the middle plate 132 one by one can convert the U-shaped structural force into simple single-side plane force, and therefore, the beneficial effect of simple and convenient removing is achieved.
In order to make the U type prefabricated section 4 that makes along the thickness of opening direction both ends unanimous to make the pleasing to the eye effect of overall structure, and can be with overall structure's focus in the position of central point, thereby make the effect of the overall structure stability of the U type prefabricated section 4 that makes. The plane of the side plate 131 of the U-shaped plate 13 is perpendicular to the plane of the enclosing plate 12 opposite to the U-shaped opening of the U-shaped plate 13, and the distance from the plane of the two side plates 131 of the U-shaped plate 13 to the two enclosing plates 12 adjacent to the U-shaped opening of the U-shaped plate 13 is consistent.
Referring to fig. 6 to 8, in order to realize the mold box structure, the panel 11, the enclosing plate 12, the side plate 131 and the middle plate 132 are removed for recycling, and meanwhile, the plate material is convenient to machine and form, and the plate material is low in cost, so that the effect of saving the production cost is realized. Panel 11, bounding wall 12, curb plate 131 and intermediate lamella 132 are made by wooden material, because the corresponding plate that constitutes the diaphragm capsule structure all makes through wooden material, consequently at the in-process that carries out production and processing, can directly be through timber guillootine batch processing shaping, simultaneously because wooden material has the characteristics that comprehensive properties is good, especially can realize the function of screw connection repeatedly, consequently has cyclic utilization's effect.
The U-shaped precast block 4 formed for processing has a uniform thickness along the through-hole direction. The end surfaces of the enclosing plates 12 far away from the panel 11 and the end surfaces of the U-shaped plates 13 far away from the panel 11 are arranged in a coplanar manner, so that the space plane of the U-shaped cavity 141 formed by the U-shaped plates 13 and three of the enclosing plates 12 far away from the panel 11 is in a relatively parallel state with the panel 11, and the manufactured U-shaped precast block 4 is equal in thickness.
In order to perform the function of removably attaching a shroud 12 to a panel 11 and removably attaching an adjacent shroud 12. The end face of the panel 11 far away from the cavity 14 is locked and attached with the enclosing plates 12 through screws, and the adjacent enclosing plates 12 are connected through screws. The characteristics of the panel 11 and the coaming 12 made of wood materials are combined, so that the detachable installation operation of the coaming 12 is simple and easy. Similarly, the middle plate 132 and the side plates 131 are detachably connected to the panel 11. The end faces of the face plates 11 far away from the cavity 14 are locked and attached with the side plates 131 and the middle plate 132 through screws. Similarly, the detachable installation of the middle plate 132 and the side plate 131 can be easily achieved by combining the characteristics of the wood materials of the side plate 131 and the middle plate 132.
After the above explanation of the structure and function of the detachable mold box 1 and the U-shaped precast block 4, the following description will be made about the connection construction method of the cantilever outrigger of the present invention, particularly, the construction method of the treatment method of the opening 22 on the wall 21 during the construction process.
Referring to fig. 1 to 8, the construction method for connecting the overhanging outer frames comprises four steps of manufacturing the U-shaped precast block 4, preparing the wall body 21 for construction, constructing the overhanging outer frames and maintaining the wall body 21 after construction.
Manufacturing a U-shaped precast block 4: the detachable mould box 1 is manufactured, concrete is poured into the detachable mould box 1, after the poured concrete is solidified, the detachable mould box 1 is demoulded, and then the manufactured U-shaped precast block 4 is taken out. The mode of removing the removable mould box 1 is to remove the screws on the removable mould box 1, then separate each coaming 12 from the panel 11 by using the shovel component, separate the side plates 131 and the middle plate 132 from each other, and finally separate the panel 11 from the U-shaped precast block 4, thereby realizing the operation of taking out the U-shaped precast block 4.
Construction of the cantilever outer frame: pass shaped steel 3 and bury the opening of the U type prefabricated section 4 in the entrance 22 of wall body 21 underground, shaped steel 3 is located the one end in the room and is connected with floor 2 through the connecting piece, connects cradling piece 34 between upper and lower adjacent shaped steel 3, and this cradling piece 34 is located outdoors, connects the climbing rod between the cradling piece 34 adjacent in same height through the staple bolt, forms holistic outrigger structure of encorbelmenting according to the construction mode once. The section steel 3 can be channel steel or I-shaped steel.
And (3) maintaining the wall body 21 after construction: after the construction is finished, the climbing rods, the support rods 34 and the section steel 3 are removed, and concrete is filled in the U-shaped precast blocks 4 in the holes 22 of the wall body 21, wherein the filled concrete is C55 high-strength concrete, so that the structural strength of the leakage repairing position can be improved.
Specifically, the invention aims to perform the strength treatment on the penetrating position (the hole 22 cut on the wall 21) of the section steel 3 of the construction wall 21 by the construction method, and to perform the filling treatment on the penetrating position of the section steel 3 after construction, so as to reduce the later-stage damage, water leakage and the like of the wall 21. The construction method comprises four steps of manufacturing the U-shaped precast block 4, preparing the wall body 21 for construction, constructing the cantilever external frame and maintaining the wall body 21 after construction, wherein the U-shaped precast block 4 is embedded in the opening 22 in the preparation process of the construction of the wall body 21 due to the special shape structure of the U-shaped precast block 4, the opening of the U-shaped precast block 4 is arranged downwards, so that the peripheral surface, far away from the opening, of the U-shaped precast block 4 is abutted against the inner wall of the opening 22, and due to the shape of the U-shaped precast block 4, the abutting surface, far away from the opening, of the U-shaped precast block 4 in the opening 22 is pre-stressed towards the direction far away from the opening of the U-shaped precast block 4, so that the inner wall of the opening 22 is reinforced, the later-period damage condition of the opening 22 of the wall body 21 is reduced, and the service life of the building wall surface is prolonged. Further, in the outrigger construction process, utilize the part that two shaped steel 3 of connecting piece are located the room to be connected with the floor, thereby realize the effect of the fixed shaped steel 3 of installation, can improve the engaging force between shaped steel 3 and the floor simultaneously, and then alleviate the butt power between the opening inner wall of shaped steel 3 and U type prefabricated section 4, thereby reduce the impaired condition of U type prefabricated section 4, and then be convenient for be located outdoor part linking bridge pole 34 and climbing pole at a plurality of shaped steel 3, and then be convenient for form holistic outrigger structure. In addition, in the maintenance process of the wall body 21 after construction, after the section steel 3 is drawn out from the opening 22, concrete is filled in the U-shaped precast block 4 in the opening 22, so that the condition that the wall body 21 is communicated with the indoor and outdoor through the opening 22 is reduced, the problem of water leakage of the wall body 21 after construction is solved, and the service life of the wall body 21 is prolonged.
Referring to fig. 1 to 8, in order to improve the structural force of the U-shaped precast block 4, the prestress of the U-shaped precast block 4 embedded in the opening 22 of the wall 21 on the inner surface of the opening 22 is further improved, so as to further improve the effect of the U-shaped precast block 4 on reinforcing the inner wall of the opening 22. From this, at the in-process of U type prefabricated section 4 preparation, arrange a plurality of reinforcing bars 41 that are parallel to each other along U die cavity 141's profile, then bind fixedly through a plurality of reinforcing bars 41 that the steel wire will arrange, then put into the U die cavity 141 of removable mould box 1, and then pour the concrete in to removable mould box 1. Therefore, after the poured concrete is solidified and the detachable mould box is removed, the U-shaped precast block 4 with the reinforcing steel bars 41 inside can be worth of, and therefore the structural strength of the U-shaped precast block 4 can be further enhanced.
In order to ensure that the section steel 3 which is positioned in a room and has penetrated through the hole 22 is connected with the floor of the floor slab 2 through the connecting piece, thereby reducing the condition that the section steel 3 falls to the downstairs due to the gravity difference at the two ends of the hole 22 and further improving the operation simplicity and safety. From this, in the outrigger work progress, after passing shaped steel 3 the opening of the U type prefabricated section 4 in the entrance to a cave 22, pack the tight accessory of interference between the opening inner wall of U type prefabricated section 4 and the shaped steel 3 surface to tentatively fix shaped steel 3. Wherein, the interference fit-in part can be plastic board, cystosepiment or wood wedge 32, when filling this interference tight fitting part, this plastic board, cystosepiment or wood wedge 32 respectively with the opening inner wall of 3 surfaces of shaped steel and U type prefabricated section 4 support each other tightly, thereby can inwards knock in interference tight fitting through appurtenance simultaneously and realize the fixed effect of tight fit.
In order to realize the function that the part of the section steel 3 positioned in the house is connected with the floor slab 2 through the connecting piece. After tentatively fixing section steel 3 to passing through 4 openings of U type prefabricated section, set up a plurality of wooden wedges 32 at the 3 top surfaces of section steel that lie in the room, a plurality of wooden wedges 32 are arranged along the length direction of section steel 3, and wherein the connecting piece is expansion bolts 31, and expansion bolts 31 in proper order the screw thread run through behind wooden wedge 32 and the section steel 3 with 2 plane threaded connection of floor to fixed section steel 3. Here, through set up a plurality of wooden wedges 32 on shaped steel 3 for the inflation screw link up the back with wooden wedge 32 and shaped steel 3 screw simultaneously, is connected with floor 2 again, makes the nut and the wooden wedge 32 contact of inflation screw, utilizes this cushioning effect, is favorable to reducing the condition of crushing shaped steel 3 in the connection process.
In addition, the interference fit parts are filled between the section steel 3 and the inner wall of the opening of the U-shaped precast block 4, so that the internal fitting parts need to be knocked out in the process of taking out the section steel 3 after the construction is finished, and the operation of taking out the section steel 3 is simple and convenient.
In order to accomplish the function of connecting the cradling piece 34 with the upper and lower adjacent section steels 3, the following operation is performed so that the connecting operation of the cradling piece 34 is accomplished. In the process of connecting the support rods 34 between the vertically adjacent section steels 3, the flange parts 33 are inserted at the two ends of the support rods 34, the flange parts 33 of the support rods 34 are respectively locked and attached with the section steels 3 at the upper side and the lower side through screws, and finally the flange parts 33 are locked and attached with the support rods 34 through screws, so that the section steels 3, the flange parts 33 and the support rods 34 are kept relatively fixed.
In order to further improve the waterproof function of the opening 22, in the process of maintaining the wall body 21 after construction, after concrete is filled in the U-shaped precast block 4 in the opening 22 of the wall body 21, waterproof paint is coated on the two outer surfaces of the wall body 21 and covers the opening 22,
in order to reduce the falling of the waterproof coating, after the waterproof coating is coated on the surface of the wall body 21, a steel wire mesh 23 is further laid on the surface of the wall body 21, so that the steel wire mesh 23 covers the waterproof coating on the surface of the opening 22, the surface tension of the waterproof coating is favorably improved, and the situation that the waterproof coating falls off is further reduced. And plastering is carried out on the wall body 21 at the position corresponding to the steel wire mesh 23 so as to cover and fix the steel wire mesh 23.
In order to avoid the condition that falling stones cause danger to passers-by when workers are in cantilever outer frame operation. After the outrigger construction is accomplished, finally hang at the outrigger surface and establish dustproof screen cloth, this dustproof screen cloth covers the surface setting of the outrigger of whole to the position of falling to the stone that drops carries on spacingly, thereby reduces the stone and to the artificial dangerous condition that becomes in road.
The embodiments of the present invention are not limited thereto, and according to the above-mentioned contents of the present invention, the present invention can be modified, substituted or combined in other various forms without departing from the basic technical idea of the present invention.
Claims (10)
1. A connection construction method of an overhanging outer frame is characterized by comprising the following steps:
manufacturing a U-shaped precast block: manufacturing a detachable mould box, pouring concrete into the detachable mould box, removing the mould of the detachable mould box after the poured concrete is solidified, and taking out the manufactured U-shaped precast block;
wall construction preparation: chiseling a specified amount of holes on the surface of a wall body, wherein the holes are communicated with the plane of a floor slab, and then embedding the prepared U-shaped precast block in the holes, so that the openings of the U-shaped precast blocks face the plane of the floor slab downwards, and the outer surfaces of the U-shaped precast blocks far away from the openings are abutted against the inner surfaces of the holes;
construction of the cantilever outer frame: the structural steel penetrates through a through opening of a U-shaped precast block buried in a wall opening, one end, located in a house, of the structural steel is connected with a floor slab through a connecting piece, a support rod is connected between the upper structural steel and the lower structural steel, the support rod is located outside the house, the adjacent support rods in the same height are connected with climbing rods through anchor ears, and an integral cantilever external frame structure is formed according to a secondary construction mode;
maintaining the wall body after construction: after the construction is completed, the climbing rods, the support rods and the section steel are detached, and concrete is filled in the U-shaped precast blocks in the hole of the wall body.
2. A connection construction method of an overhanging outer frame according to claim 1, characterized in that: in the process of manufacturing the U-shaped precast block, the structure of the detachable mould box is as follows: the detachable die box comprises a panel which is arranged in a rectangular shape, four edges of one plane of the panel can be detachably connected with surrounding plates, the surrounding plates are detachably connected with adjacent surrounding plates, a cavity is enclosed by the four surrounding plates, the plane of the panel close to the cavity is detachably connected with a U-shaped plate, the tail end of a U-shaped opening of the U-shaped plate is detachably connected with one of the surrounding plates, a U-shaped cavity is formed between the U-shaped plate and the other three surrounding plates, and the end face of the surrounding plate far away from the panel and the end face of the U-shaped plate far away from the panel are arranged in a coplanar manner; the U-shaped plate comprises two side plates which are opposite to each other and arranged in parallel, the U-shaped opening end of the U-shaped plate is provided with the same middle plate, the middle plate is abutted against the side plates, and the side plates and the middle plate are detachably connected with the panel.
3. A connection construction method of an overhanging outer frame according to claim 2, characterized in that: the panel, the coaming, the side plates and the middle plate are all made of wood materials.
4. A connection construction method of an overhanging outer frame according to claim 1, characterized in that: in the process of U type prefabricated section preparation, arrange a plurality of reinforcing bars that are parallel to each other along the profile of U die cavity, then bind fixedly through a plurality of reinforcing bars that the steel wire will be arranged, then put into the U die cavity of removable mould box, and then pour the concrete in to removable mould box.
5. A connection construction method of an overhanging outer frame according to claim 1, characterized in that: in the outrigger work progress, after passing the opening of the intraoral U type prefabricated section of hole with shaped steel, pack the tight accessory of interference between the opening inner wall of U type prefabricated section and shaped steel surface to tentatively fix shaped steel.
6. The connection construction method of the cantilever outer frame according to claim 5, wherein: after preliminary fixing the shaped steel to passing U type prefabricated section opening, set up a plurality of wooden wedges at the shaped steel top surface that lies in the room, a plurality of wooden wedges are arranged along the length direction of shaped steel, wherein the connecting piece is expansion bolts, and expansion bolts in proper order the screw thread run through behind wooden wedge and the shaped steel with floor plane threaded connection to fixed shaped steel.
7. A connection construction method of an overhanging outer frame according to claim 1, characterized in that: in the process of connecting the support rod between the upper and lower adjacent section steels, flange parts are inserted at two ends of the support rod, the flange parts of the support rod are uniformly connected with the section steels on the upper and lower sides through screws in a locking manner, and finally the flange parts are connected with the support rod in a locking manner through screws, so that the section steels, the flange parts and the support rod are kept relatively fixed.
8. A connection construction method of an overhanging outer frame according to claim 1, characterized in that: in the process of maintaining the wall body after construction, after concrete is filled in the U-shaped precast blocks in the hole of the wall body, waterproof paint is coated on two outer surfaces of the wall body, and the waterproof paint covers the hole.
9. A connection construction method of an overhanging outer frame according to claim 8, characterized in that: after the waterproof coating is coated on the surface of the wall body, a steel wire mesh is further laid on the surface of the wall body to cover the hole, and then plastering is carried out on the position, corresponding to the steel wire mesh, of the wall body to cover and fix the steel wire mesh.
10. A connection construction method of an overhanging outer frame according to claim 1, characterized in that: after the construction of the cantilever outer frame is completed, the dustproof mesh cloth is finally hung on the surface of the integral cantilever outer frame, and the dustproof mesh cloth covers the surface of the integral cantilever outer frame.
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| CN202111341032.4A CN114046030A (en) | 2021-11-12 | 2021-11-12 | Connection construction method of cantilever outer frame |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090166501A1 (en) * | 2007-12-28 | 2009-07-02 | Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. | Support stand for flat-panel display monitor |
| CN105781089A (en) * | 2016-03-08 | 2016-07-20 | 江苏南通二建集团有限公司 | Construction method for outer wall socket type plate buckle steel pipe scaffold |
| CN106088447A (en) * | 2016-06-12 | 2016-11-09 | 中国十七冶集团有限公司 | A kind of exterior wall builder's jack shaped steel eye protective brick device and construction method |
| CN208072974U (en) * | 2018-03-28 | 2018-11-09 | 杭州江润科技有限公司 | A kind of self-supporting hoistable platform jacking hole steel beam structure |
| CN209812661U (en) * | 2019-04-23 | 2019-12-20 | 江苏省苏中建设集团股份有限公司 | Formwork-supporting-free U-shaped shell of prefabricated constructional column for building |
-
2021
- 2021-11-12 CN CN202111341032.4A patent/CN114046030A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090166501A1 (en) * | 2007-12-28 | 2009-07-02 | Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. | Support stand for flat-panel display monitor |
| CN105781089A (en) * | 2016-03-08 | 2016-07-20 | 江苏南通二建集团有限公司 | Construction method for outer wall socket type plate buckle steel pipe scaffold |
| CN106088447A (en) * | 2016-06-12 | 2016-11-09 | 中国十七冶集团有限公司 | A kind of exterior wall builder's jack shaped steel eye protective brick device and construction method |
| CN208072974U (en) * | 2018-03-28 | 2018-11-09 | 杭州江润科技有限公司 | A kind of self-supporting hoistable platform jacking hole steel beam structure |
| CN209812661U (en) * | 2019-04-23 | 2019-12-20 | 江苏省苏中建设集团股份有限公司 | Formwork-supporting-free U-shaped shell of prefabricated constructional column for building |
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