CN115538678B - Construction method for small side surface platform of large-angle overhanging view platform - Google Patents

Construction method for small side surface platform of large-angle overhanging view platform Download PDF

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Publication number
CN115538678B
CN115538678B CN202211312630.3A CN202211312630A CN115538678B CN 115538678 B CN115538678 B CN 115538678B CN 202211312630 A CN202211312630 A CN 202211312630A CN 115538678 B CN115538678 B CN 115538678B
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platform
die
overhanging
rod
cantilever
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CN115538678A (en
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郑培锋
郑嘉玲
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Guangdong Keneng Project Management Co ltd
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Guangdong Keneng Project Management Co ltd
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/43—Floor structures of extraordinary design; Features relating to the elastic stability; Floor structures specially designed for resting on columns only, e.g. mushroom floors
    • 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
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
    • 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
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
    • E04G11/365—Stop-end shutterings
    • 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
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
    • E04G11/48—Supporting structures for shutterings or frames for floors or roofs
    • 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
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

The application relates to the technical field of construction of platforms at the outer sides of buildings, and provides a construction method of a small platform at the side surface of a large-angle overhanging scenery platform, which comprises the following steps of S1: and (5) embedding and fixing a stiff framework: the method comprises the steps that a stiff framework is pre-embedded on an upright post in a building, the stiff framework comprises a longitudinal rod, one end of the longitudinal rod is fixed with a reinforcement cage in the upright post, one end of the longitudinal rod, which is far away from the upright post, extends out of a lighting hole, and a transverse rod is vertically fixed at one end of the longitudinal rod, which is far away from the upright post; s2: erecting a hanging die assembly on a building top floor slab, and hanging bottom dies of a view platform and a corridor at the bottoms of a transverse rod cantilever section and a longitudinal rod cantilever section through the hanging die assembly; s3: a small platform on the side of Zhou Bangza and a reinforcement mesh of the corridor are arranged outside the overhanging ends of the transverse rods and the longitudinal rods; s4: a side die is supported on the periphery of the bottom die; s5: pouring concrete into a die cavity formed by the bottom die and the side die, and curing; s6: and removing the side die and the bottom die. The application has the effect of improving the bearing capacity of the small lateral platform.

Description

Construction method for small side surface platform of large-angle overhanging view platform
Technical Field
The application relates to the technical field of construction of platforms on the outer sides of buildings, in particular to a construction method of a small platform on the side surface of a large-angle overhanging view platform.
Background
According to actual design needs, as shown in fig. 1, overhanging viewing platforms and side small platforms 16 are required to be respectively arranged on two adjacent sides of a building, each overhanging viewing platform comprises an upper ladder portion, a lower ladder portion 12 and an overhanging platform 1 for connecting the upper ladder portion with the lower ladder portion 12, the upper ladder portion is composed of an indoor section 13 and an overhanging section 11, and the outdoor section is connected with the overhanging section 11 through a horizontal bearing platform 14. Meanwhile, a lighting hole 17 is formed in the building outer wall provided with the small side platform 16, the lighting hole 17 is arranged opposite to the horizontal bearing platform 14, and the small side platform 16 is connected with the horizontal bearing platform 14 through the corridor 15, so that personnel can enter the small side platform 16 through the corridor 15.
At present, the actual construction side view Jing Taishi is usually that a reinforcement joint is reserved on the building outer wall, when the small side platform is constructed, a reinforcement mesh is connected with the reserved reinforcement joint of the building outer wall, when the small side platform is used subsequently, loads are all concentrated at the reinforcement mesh of the small side platform and the reserved reinforcement joint of the building outer wall, the bearing capacity of the small side platform is relatively insufficient, so that the small side platform is easy to generate downward disturbance deformation, and certain potential safety hazards exist.
Disclosure of Invention
In order to improve the overall strength and bearing capacity of the small lateral platform, the application provides a construction method of the small lateral platform of the large-angle overhanging view platform.
The application provides a construction method of a small platform on the side surface of a large-angle overhanging view platform, which adopts the following technical scheme:
a construction method of a small platform on the side surface of a large-angle overhanging view platform, which comprises the following steps,
s1: and (5) embedding and fixing a stiff framework: the method comprises the steps that a stiff framework is pre-buried on an upright post in a building, the stiff framework comprises a longitudinal rod, one end of the longitudinal rod is fixed with a reinforcement cage in the upright post, one end of the longitudinal rod, which is far away from the upright post, extends out of a lighting hole, and a transverse rod is vertically fixed at one end of the longitudinal rod, which is far away from the upright post;
s2: erecting a hanging die assembly on a building top floor slab, and hanging bottom dies of a view platform and a corridor at the bottoms of a transverse rod cantilever section and a longitudinal rod cantilever section through the hanging die assembly;
s3: a small platform on the side of Zhou Bangza and a reinforcement mesh of the corridor are arranged outside the overhanging ends of the transverse rods and the longitudinal rods;
s4: a side die is supported on the periphery of the bottom die;
s5: pouring concrete into a die cavity formed by the bottom die and the side die, and curing;
s6: and removing the side mold and the bottom mold to finish the construction of the side small platform and the corridor.
Through the adoption of the technical scheme, the reinforcement meshes of the small side platform and the corridor are pre-buried through the stiffness framework, after the construction of the subsequent corridor and the small side platform is completed, the reinforcement meshes of the corridor and the small side platform can be supported in an auxiliary mode through the stiffness framework, compared with the traditional connection mode of only connecting the reinforcement meshes with reserved reinforcement joints between the small side platform and a building, the reinforcement meshes are beneficial to improving the stress condition of the small side platform and the corridor through the stiffness framework, and the bearing capacity and the overall strength of the small side platform and the corridor are improved.
Preferably, the hanging module assembly comprises a plurality of overhanging I-beams arranged on the top floor, one ends of the overhanging I-beams are fixed on the top floor through a plurality of anchoring pieces, the other ends of the overhanging I-beams extend out of the top floor to form overhanging ends, connecting rods are arranged between the overhanging ends of the overhanging I-beams and the bottom die, and two ends of each connecting rod are detachably connected between the bottom die and the overhanging I-beams respectively.
Through adopting above-mentioned technical scheme, prop up before establishing the die block, fix a plurality of I-beam that encorbelments on the top floor through the anchor assembly, the rethread connecting rod hangs the die block and connects both bottoms at transverse rod and longitudinal rod, alright realize propping up of die block and establish, it is more convenient to need to set up the mode that falls to the ground and fills hall scaffold frame as the die block support when comparing traditional prop up the die block, has reduced the use of a large amount of steel pipes for prop up of die block is simple and convenient more.
Preferably, the I-beam and die block of encorbelmenting are worn to locate respectively at connecting rod both ends, threaded connection has lock nut respectively at connecting rod both ends, lock nut at connecting rod both ends butt respectively is in the I-beam of encorbelmenting and one side that the die block deviates from each other, I-beam of encorbelmenting and die block all have seted up the through-hole that supplies the connecting rod to wear to establish.
Through adopting above-mentioned technical scheme, when installing the die block, after the end of encorbelmenting on encorbelmenting I-beam is hung to the connecting rod top section through a set of lock nut, remove the die block, until the connecting rod bottom wears to locate the through-hole that corresponds on the die block, with another set of lock nut screw in connecting rod bottom again, hold up the die block with the lock nut of connecting rod bottom, alright realize propping up the die block and establish both in longitudinal bar and transverse bar bottoms. When the bottom die is dismounted subsequently, the bottom die can be dismounted from the bottom of the side small platform only by screwing out the locking nut at the bottom end of the connecting rod, so that the bottom die plate is convenient to dismount and mount.
Preferably, in S1, a plurality of support rods are pre-buried in the outer wall of the building before the stiff skeleton is pre-buried, and when the stiff skeleton is constructed, the bottoms of the transverse rods are lapped on the plurality of support rods.
Through adopting above-mentioned technical scheme, through the setting of bracing piece, be convenient for support the transverse rod of stiffness skeleton through pre-buried supporting rod for transverse rod is difficult for bending deformation, is convenient for promote stiffness skeleton's overall structure intensity, is convenient for promote the whole of the little platform of side better through stiffness skeleton
Preferably, the longitudinal rod is arranged on the horizontal bearing platform of the upper ladder part in a penetrating way.
By adopting the technical scheme, on one hand, the horizontal bearing platform is utilized to provide a fulcrum for the longitudinal rod, so that the longitudinal rod is not easy to deform under stress, and the stiff framework is convenient to better reinforce the small lateral platform; meanwhile, the horizontal bearing platform can be reinforced through the longitudinal rods, so that the horizontal bearing platform of the upper ladder part is more stable.
Preferably, the connecting rod is also coaxially sleeved with a plurality of sleeve pipes, and the bottom ends of the sleeve pipes are abutted against the upper surface of the bottom die.
Through adopting above-mentioned technical scheme, through the setting of ferrule, follow-up side direction sightseeing layer platform pours the completion back, twists out the back with the nut at connecting rod both ends, alright demolish the connecting rod from the little platform of side, the turnover of the connecting rod of being convenient for uses.
Preferably, the anchoring piece comprises two groups of limiting rods pre-buried in the top floor slab, the overhanging I-beam is located between the two groups of limiting rods, the anchoring piece is further arranged on a pressing plate at the top of the I-beam, two groups of perforations are formed in the position, corresponding to the two groups of limiting rods, of the pressing plate, the pressing plate is sleeved on the two groups of limiting rods through the two groups of perforations, the two groups of limiting rods are connected with limiting nuts through threads, and the limiting nuts are abutted to one side, deviating from the overhanging I-beam, of the pressing plate.
Through adopting above-mentioned technical scheme, when fixed I-beam of encorbelmenting, establish clamp plate cover between two sets of gag lever posts of bracing piece two sets of gag lever post tops, again with lock nut screw in gag lever post top alright realize fixing the I-beam of encorbelmenting on the top floor, the I-beam of encorbelmenting of being convenient for dismouting in the top floor.
Preferably, a sealing band is bonded at the joint of the sleeve and the bottom die.
Through adopting above-mentioned technical scheme, through the setting of sealing band, utilize the clearance between sealing band shutoff ferrule and the die block, be favorable to reducing when pouring concrete towards the die block, the condition in the concrete infiltration ferrule through the clearance between ferrule and the die block is convenient for follow-up connecting rod follow side little platform and take out.
In summary, the present application includes at least one of the following beneficial technical effects:
1. through pre-buried strength nature skeleton on the stand to at the reinforcing bar of the lateral lever of strength nature skeleton and the lateral lever outer Zhou Bangza side little platform of vertical pole and even roof beam, after follow-up side little platform construction and the corridor construction are accomplished, vertical lever and lateral lever can be regarded as the skeleton of both reinforcing bar nets of side little platform and corridor, promote both bulk strength of side little platform and corridor, carry out auxiliary stay to both side little platforms through strength nature skeleton simultaneously, be favorable to promoting the bulk bearing capacity of side little platform, improve the whole atress condition of side little platform and building outer wall junction, make side little platform and corridor be difficult for taking place down to disturb the deformation.
2. Through pre-buried being fixed with the bracing piece at the building outer wall to overlap joint transverse rod is on a plurality of bracing pieces, utilizes the bracing piece to support transverse rod, makes transverse rod be difficult for atress deformation.
3. The vertical rod penetrates through the horizontal bearing platform, on one hand, the horizontal bearing platform is used for supporting the vertical rod in an auxiliary mode, so that the vertical rod is not easy to deform under stress, and meanwhile, the overall strength of the horizontal bearing platform can be improved through the vertical rod.
Drawings
FIG. 1 is a view showing the overhanging end of the upper ladder section, the indoor section of the upper ladder section and the horizontal bearing platform; the position schematic diagrams of the overhanging view platform, the lower ladder part, the lateral small platform, the corridor, the upright post and the lighting hole.
Fig. 2 is a schematic view showing a state when the bottom die is supported in this embodiment.
Fig. 3 is a schematic view showing a state of the reinforcing mesh binding in the embodiment
Fig. 4 is an enlarged schematic view of the portion a in fig. 2.
Fig. 5 is an enlarged schematic view of the portion B in fig. 2.
Reference numerals illustrate:
1. a overhanging platform; 10. a column; 11. a cantilever section; 12. a lower ladder part; 13. an indoor section; 14. a horizontal bearing platform; 15. a vestibule; 16. a small side platform; 17. a lighting hole; 18. a top floor slab; 2. a stiff skeleton; 21. a longitudinal rod; 22. a transverse bar; 3. overhanging the I-beam; 31. a connecting rod; 311. a ferrule; 32. a lock nut; 33. a drop-proof nut; 4. a bottom die; 41. a side mold; 5. a support rod; 6. a limit rod; 61. a pressing plate; 62. and (5) limiting the nut.
Detailed Description
The application is described in further detail below with reference to fig. 1-5.
Referring to fig. 1, in this embodiment, the overhanging view platform and the side small platform 16 are located at two adjacent sides of the building, the overhanging view platform includes an upper ladder portion, a lower ladder portion 12 and an overhanging platform 1 for connecting the upper ladder portion and the lower ladder portion 12, the upper ladder portion includes an indoor section 13 located inside the building and an overhanging section 11 extending outside the building, the indoor section 13 and the overhanging section 11 are connected through a horizontal bearing platform 14, a lighting hole 17 is formed in an outer wall of one side of the building provided with the side small platform 16, the horizontal bearing platform 14 and the side small platform 16 are connected through a gallery 15, a stand column 10 is arranged in the building, the stand column 10 is located at one side of the horizontal bearing platform 14 deviating from the lighting hole 17, and the stand column 10 is arranged opposite to the horizontal bearing platform 14.
The embodiment of the application discloses a construction method of a small side platform 16 of a large-angle overhanging view platform, which comprises the following steps with reference to fig. 2 and 3:
s1: and (3) embedding and fixing the stiff framework 2: the stiff framework 2 is pre-buried and fixed on the upright post 10 in the building.
The stiffness framework 2 comprises a longitudinal rod 21, one end of the longitudinal rod 21 is fixed with a reinforcement cage of the upright post 10, one end of the longitudinal rod 21 far away from the upright post 10 penetrates through the horizontal bearing platform 14 and extends out of the lighting hole 17, one end of the longitudinal rod 21 extending out of the lighting hole 17 is welded and fixed with a transverse rod 22, the longitudinal rod 21 and the transverse rod 22 are vertically arranged, and in the embodiment, the longitudinal rod 21 and the transverse rod 22 are I-beams. And an inclined strut is welded and fixed at the joint of the longitudinal rod 21 and the transverse rod 22, and the connection strength of the longitudinal rod 21 and the inclined strut is improved through the inclined strut.
One end far away from the upright post 10 through the longitudinal rod 21 penetrates through the horizontal bearing platform 14, on one hand, the horizontal bearing platform 14 is used for providing a fulcrum, so that the longitudinal rod 21 is not easy to deform under stress, and on the other hand, the upright post 10 can be used for reinforcing the horizontal bearing platform 14 so as to improve the overall structural strength of the horizontal bearing platform 14.
In S1, before constructing the stiff framework 2, a plurality of support rods 5 are pre-buried in the outer wall of the building, and in the embodiment, the support rods 5 are I-shaped beams, and the support rods 5 are welded and fixed with a reinforcing steel bar mesh in the outer wall of the building; when the stiff framework 2 is constructed, the transverse rods 22 of the stiff framework 2 are lapped on the support rods 5, so that auxiliary support of the transverse rods 22 is realized, the transverse rods 22 can more firmly prop up the reinforcing steel bar net of the side small platform 16, and the bearing capacity and the overall strength of the side small platform 16 are further improved through the stiff framework 2.
S2: erecting a hanging die assembly on a building roof side floor, and hanging the bottom dies 4 of the viewing platform and the corridor 15 at the bottoms of the cantilever sections 11 of the transverse rod 22 and the longitudinal rod 21 through the hanging die assembly;
referring to fig. 2 and 4, the hanger module includes a plurality of cantilever i-beams 3 disposed on a top floor 18 of a building, the cantilever i-beams 3 being secured to the top floor 18 by a plurality of anchors. The other ends of the cantilever I-beams 3, which are far away from the anchoring pieces, extend out of the top floor 18 to form cantilever ends, a connecting rod 31 is arranged between the cantilever ends of the cantilever I-beams 3 and the bottom die 4, and two ends of the connecting rod 31 are detachably connected to the bottom die 4 and the cantilever I-beams 3 respectively.
Referring to fig. 2 and 4, two ends of a connecting rod 31 are respectively arranged on an overhanging i-beam 3 and a bottom die 4 in a penetrating manner, through holes for the connecting rod 31 to penetrate are respectively formed in the overhanging i-beam 3 and the bottom die 4, locking nuts 32 are respectively connected with two ends of the connecting rod 31 in a threaded manner, and the locking nuts 32 at two ends of the connecting rod 31 are respectively abutted to one sides of the overhanging i-beam 3 and the bottom die 4, which are away from each other, so that the bottom die 4 is supported at the bottoms of the transverse rod 22 and the longitudinal rod 21.
Referring to fig. 2 and 4, the connecting rod 31 is further coaxially sleeved with a sleeve pipe 311, in this embodiment, the sleeve pipe 311 is a PVC pipe, the bottom end of the sleeve pipe 311 is abutted against the upper surface of the bottom die 4, and when concrete is poured into the cavity formed by surrounding the bottom die 4 and the side die 41, the adhesion between the concrete and the connecting rod 31 is limited. After the subsequent pouring and forming of the small side surface platform 16, the connecting rod 31 can be pulled away from the small side surface platform 16, so that the connecting rod 31 can be conveniently used in a turnover way.
Referring to fig. 2 and 4, a sealing strip is adhered to the joint between the sleeve pipe 311 and the bottom die 4, in this embodiment, the sealing strip is an adhesive tape, so that the gap between the sleeve pipe 311 and the bottom die 4 is facilitated to pass through the sealing strip, and when concrete is poured subsequently, the concrete is not easy to infiltrate into the sleeve pipe 311 through the gap between the sleeve pipe 311 and the bottom die 4, so that the subsequent connecting rod 31 can be drawn out from the sleeve pipe 311 more smoothly.
Referring to fig. 2 and 5, the anchoring member comprises two groups of limiting rods 6 pre-buried and fixed on the top floor 18, the cantilever i-beam 3 is positioned between the two groups of limiting rods 6, the anchoring member further comprises a pressing plate 61, the pressing plate 61 is provided with two groups of perforations corresponding to the two groups of limiting rods 6, the pressing plate 61 is sleeved on the two groups of limiting rods 6 through the two groups of perforations, the top section of the limiting rod 6 is in threaded connection with a limiting nut 62 and the limiting nut 62 is abutted with one side, deviating from the supporting rod 5, of the pressing plate 61, so that the cantilever i-beam 3 is fixed on the top floor 18.
The specific operation steps of S2 are as follows:
s2.1: a plurality of overhanging i-beams 3 are fixed to the top floor 18 by anchors.
S2.2: the top end of the connecting rod 31 is hung on the overhanging end of the overhanging I-beam 3 through a locking nut 32.
S2.3: the bottom die 4 is hoisted below the overhanging ends of the transverse rods 22 and the longitudinal rods 21 through the tower crane, the bottom die 4 is manually moved in an auxiliary mode until the bottom end of the connecting rod 31 penetrates below the bottom die 4, and the locking nut 32 is screwed into the bottom end of the connecting rod 31, so that the bottom die 4 is hoisted through the connecting rod 31.
S2.3: a drop-proof nut 33 is screwed into the bottom end of the connecting rod 31.
S3: a reinforcing mesh of the small platform 16 and the gallery 15 at the side of Zhou Bangza outside the overhanging ends of the transverse rod 22 and the longitudinal rod 21; when binding the reinforcing steel bar net, the reinforcing steel bars of the reinforcing steel bar net are firmly connected with reinforcing steel bar joints reserved on the outer wall and the bearing platform of the building.
In the process of erecting the reinforcing mesh, safety professional personnel are required to be arranged for strengthening inspection, and concentrated overload on the templates is forbidden for stacking reinforcing bars, mechanical equipment and other materials, so that the object is prevented from falling and the support system is prevented from local collapse.
S4: a side mold 41 is supported on the periphery of the bottom mold 4, and a release agent should be coated in time after the side mold 41 is supported.
S5: pouring concrete into a die cavity formed by the bottom die 4 and the side die 41, and curing; before concrete is poured, the side die 41 and the bottom die 4 are detected and checked, and concrete pouring can be performed after the side die and the bottom die are qualified, wherein layered symmetrical synchronous balanced pouring is adopted for concrete pouring.
S6: and (5) removing the side mold 41 plate and the bottom mold 4 plate to finish the construction of the side small platform 16 and the corridor 15. The specific operation steps of S6 are as follows:
s6.1: the side mold 41 on the outer periphery of the bottom mold 4 is removed.
S6.2: dismantling the bottom die 4: the anti-drop nut 33 and the locking nut 32 at the bottom end of the connecting rod 31 are unscrewed, and the bottom die 4 is removed from the top of the side small platform 16.
S6.3: the locking nut 32 at the top of the connecting rod 31 is screwed out to withdraw the connecting rod 31 from the small lateral platform 16.
S6.4: and dismantling the overhanging I-beam 3.
According to the construction method of the large-angle overhanging view platform side small platform 16, the stiff framework 2 is embedded in the upright post 10 in the building, the reinforcing steel bar meshes of the side small platform 16 and the corridor 15 are arranged outside Zhou Bangza of the overhanging ends of the transverse rod 22 and the longitudinal rod 21 of the stiff framework 2, after the following casting forming of the side small platform 16 and the corridor 15, the side small platform 16 and the corridor 15 are supported in an auxiliary mode by the aid of the stiff framework 2, and accordingly the bearing capacity and the integral strength of the side small platform 16 and the corridor 15 are improved, and the side small platform 16 and the corridor 15 are not prone to being deformed downwards in the using process.
The end, far away from the upright post 10, of the longitudinal rod 21 penetrates through the horizontal bearing platform 14, so that the overall strength of the bearing platform is conveniently improved through the longitudinal rod 21, and meanwhile, the longitudinal rod 21 is provided with a fulcrum through the horizontal bearing platform 14, so that the longitudinal rod 21 is not easy to bend and deform.
Through pre-buried a plurality of bracing pieces 5 at the building outer wall and make transverse rod 22 overlap joint on a plurality of bracing pieces 5, utilize a plurality of bracing pieces 5 to carry out auxiliary stay to transverse rod 22, be convenient for promote transverse rod 22 overall rigidity for the rigidity skeleton 2 is whole more firm.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (4)

1. A construction method for a small side surface platform of a large-angle overhanging vision platform is characterized by comprising the following steps: comprises the steps of,
s1: and (3) embedding and fixing the stiff framework (2): the method comprises the steps that a stiff framework (2) is pre-buried on an upright post (10) in a building, the stiff framework (2) comprises a longitudinal rod (21), one end of the longitudinal rod (21) is fixed with a reinforcement cage in the upright post (10), one end of the longitudinal rod (21) far away from the upright post (10) extends out of a lighting hole (17), and a transverse rod (22) is vertically fixed at one end of the longitudinal rod (21) far away from the upright post (10);
s2: erecting a hanging die assembly on a building top floor (18), and hanging bottom dies (4) of the viewing platform and the corridor (15) at the bottoms of the cantilever sections of the transverse rod (22) and the longitudinal rod (21) through the hanging die assembly;
s3: reinforcing mesh of a small side platform (16) and a corridor (15) at the outer Zhou Bangza side of the overhanging ends of the transverse rod (22) and the longitudinal rod (21);
s4: a side die (41) is supported on the periphery of the bottom die (4);
s5: pouring concrete into a die cavity formed by the bottom die (4) and the side die (41) and curing;
s6: removing the side mold (41) and the bottom mold (4) to finish the construction of the side small platform (16) and the corridor (15);
the hanging die assembly comprises a plurality of cantilever I-beams (3) arranged on a top floor (18), one ends of the cantilever I-beams (3) are fixed on the top floor (18) through a plurality of anchoring pieces, the other ends of the cantilever I-beams (3) extend out of the top floor (18) to form cantilever ends, connecting rods (31) are arranged between the cantilever ends of the cantilever I-beams (3) and the bottom die (4), and two ends of each connecting rod (31) are detachably connected between the bottom die (4) and the cantilever I-beams (3);
the two ends of the connecting rod (31) are respectively penetrated through the overhanging I-beam (3) and the bottom die (4), the two ends of the connecting rod (31) are respectively connected with locking nuts (32) in a threaded manner, the locking nuts (32) at the two ends of the connecting rod (31) are respectively abutted to one side, deviating from each other, of the overhanging I-beam (3) and the bottom die (4), and through holes for the connecting rod (31) to penetrate are respectively formed in the overhanging I-beam (3) and the bottom die (4);
in S1, before embedding a stiff framework (2), embedding a plurality of support rods (5) on an outer wall of a building, and overlapping the bottoms of transverse rods (22) on the plurality of support rods (5) when constructing the stiff framework (2);
the longitudinal rod (21) penetrates through the horizontal bearing platform (14) of the upper ladder part.
2. The construction method of the small side platform of the large-angle overhanging vision platform according to claim 1, which is characterized in that: the connecting rod (31) is also coaxially sleeved with a plurality of sleeve pipes (311), and the bottom ends of the sleeve pipes (311) are abutted to the upper surface of the bottom die (4).
3. The construction method of the small side platform of the large-angle overhanging vision platform according to claim 2, which is characterized in that: the anchor assembly comprises two groups of limiting rods (6) embedded in a top floor (18), the cantilever I-beam (3) is located between the two groups of limiting rods (6), the anchor assembly is further arranged on a pressing plate (61) at the top of the I-beam, the pressing plate (61) is provided with two groups of perforations corresponding to the two groups of limiting rods (6), the pressing plate (61) is sleeved on the two groups of limiting rods (6) through the two groups of perforations, the two groups of limiting rods (6) are connected with limiting nuts (62) through equal threads on the top ends of the limiting rods (6), and the limiting nuts (62) are abutted against one side, deviating from the cantilever I-beam (3), of the pressing plate (61).
4. The construction method of the small side platform of the large-angle overhanging vision platform according to claim 3, which is characterized in that: and a sealing belt is adhered to the joint of the sleeve pipe (311) and the bottom die (4).
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CN111794501A (en) * 2020-08-04 2020-10-20 舜元建设(集团)有限公司 Pouring method of cast-in-situ cantilever structure formwork system
CN112064510A (en) * 2020-09-08 2020-12-11 宁波市建设集团股份有限公司 Cast-in-place decking assembled hangs mode structure
CN113006477A (en) * 2021-03-06 2021-06-22 中建三局集团(深圳)有限公司 High-altitude cantilever stiff structure and construction method thereof
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KR100814442B1 (en) * 2007-03-30 2008-03-17 (주)엠씨에스공법 Concrete mold for flat plate slab/flat slab and construction method using the same
KR20170071079A (en) * 2015-12-15 2017-06-23 현대건설주식회사 Method for constructing platform
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