CN115306145A - Large-span high-altitude formwork support construction method based on high-altitude formwork support platform - Google Patents

Large-span high-altitude formwork support construction method based on high-altitude formwork support platform Download PDF

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Publication number
CN115306145A
CN115306145A CN202210944970.1A CN202210944970A CN115306145A CN 115306145 A CN115306145 A CN 115306145A CN 202210944970 A CN202210944970 A CN 202210944970A CN 115306145 A CN115306145 A CN 115306145A
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CN
China
Prior art keywords
altitude
steel
main beam
support
supporting
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Pending
Application number
CN202210944970.1A
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Chinese (zh)
Inventor
高玉亭
纪海生
张慧杰
张洪刚
胡勇军
魏三固
潘志忠
吴卫
李鹏军
熊恩农
林宗建
刘子琨
方舜标
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Shenzhen Construction Engineering Group Co Ltd
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Shenzhen Construction Engineering Group Co Ltd
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Application filed by Shenzhen Construction Engineering Group Co Ltd filed Critical Shenzhen Construction Engineering Group Co Ltd
Priority to CN202210944970.1A priority Critical patent/CN115306145A/en
Publication of CN115306145A publication Critical patent/CN115306145A/en
Pending legal-status Critical Current

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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
    • 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
    • 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
    • E04G11/483—Supporting heads
    • 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
    • E04G11/50—Girders, beams, or the like as supporting members for forms
    • E04G11/52—Girders, beams, or the like as supporting members for forms of several units arranged one after another
    • 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
    • E04G17/18—Devices for suspending or anchoring form elements to girders placed in ceilings, e.g. hangers

Abstract

The invention discloses a construction method of a large-span high-altitude formwork support based on a high-altitude formwork support platform, wherein the high-altitude formwork support platform comprises main beam steel and a plurality of support steels which obliquely extend downwards from the lower side of the main beam steel, and the method comprises the following steps: embedding anchor plates on boundary beams of two adjacent floors close to the top of a building; the high-altitude formwork supporting platform is lifted to an adjacent floor, main beam steel stretches across two opposite side beams on the upper layer and is connected with the embedded anchor plate, the lower end of each supporting steel is abutted against the side beam on the lower layer and is connected with the embedded anchor plate, and therefore, a plurality of high-altitude formwork supporting platforms are sequentially supported in the long edge direction of the side beams on the upper layer and the lower layer to form a high-altitude supporting base frame; and a formwork support is arranged on the high-altitude support base frame. According to the scheme, the main beam steel stretching across the two opposite side beams on the upper layer and the support steels with one ends abutting against the side beams on the lower layer form the high-altitude support base frame, the support base frame is arranged on the high-altitude support base frame, the situation that the main beam steel stretches over the side beams on the upper layer and the support steels on the side beams on the lower layer is avoided, the operation is simple, the operation difficulty is low, and the construction period is short.

Description

Large-span high-altitude formwork support construction method based on high-altitude formwork support platform
[ technical field ] A method for producing a semiconductor device
The invention relates to a building construction platform, in particular to a large-span high-altitude formwork support construction method based on a high-altitude formwork support platform.
[ background of the invention ]
The floor or steel construction roofing construction of traditional large-span superelevation position all adopts the mode of upwards setting up full hall scaffold frame from the bottom to support, complex operation, the operation degree of difficulty are big, with high costs.
[ summary of the invention ]
The invention aims to solve the technical problems that a floor slab or a steel structure roof at a large-span ultrahigh position is supported by erecting a full scaffold in the prior art, the operation is complicated, and the operation difficulty is high.
The invention is realized by the following technical scheme:
the high-altitude formwork support platform comprises main beam steel for crossing and connecting opposite side beams of a building and a plurality of support steels which extend downwards from the lower side of the main beam steel and are connected with the side beams of the building in an inclined mode, the support steels are arranged at intervals in the long edge direction of the main beam steel, a plurality of positioning columns are arranged on the upper side of the main beam steel in the long edge direction of the main beam steel, and the construction method comprises the following steps:
s1: embedding anchor plates on boundary beams of two adjacent floors close to the top of a building;
s2: hoisting the high-altitude formwork supporting platform to the adjacent floor, enabling the main beam steel to stretch across two opposite side beams on the upper layer and be connected with the embedded anchor plates, enabling the lower ends of the supporting steels to abut against the side beams on the lower layer and be connected with the embedded anchor plates, and repeating the steps in such a way, sequentially supporting a plurality of high-altitude formwork supporting platforms in the long edge direction of the side beams on the upper layer and the lower layer to form a high-altitude supporting base frame;
s3: after the high-altitude supporting base frame is erected, a supporting die frame is arranged on the high-altitude supporting base frame.
According to the construction method of the large-span high-altitude formwork support based on the high-altitude formwork support platform, two first connecting plates are arranged on the end face, opposite to the support steel, of the main beam steel, and the two first connecting plates are respectively arranged at the two ends of the main beam steel in the long-edge direction and are used for being connected with the side beams of the building;
a second connecting plate for connecting the building boundary beam is arranged on one side of the supporting steel back to the main beam steel;
in the step S1, the embedded anchor plates are fixed on the boundary beams of the floors through chemical bolts, in the step S2, the contact surfaces of the first connecting plate and the embedded anchor plates on the boundary beams on the upper layer are fully welded, and the contact surfaces of the second connecting plate and the embedded anchor plates on the boundary beams on the lower layer are fully welded.
According to the construction method of the large-span high-altitude formwork support based on the high-altitude formwork support platform, in the step S1, the embedded anchor plates are embedded at the positions at least 200mm away from the edge of the boundary beam of the upper layer;
in the step S2, the first connecting plate is at least 200mm away from the edge of the upper boundary beam after being fully welded with the embedded anchor plate on the upper boundary beam.
In the construction method of the large-span high-altitude formwork support based on the high-altitude formwork support platform, in the step S1, a plurality of embedded anchor plates are embedded at intervals in the long edge direction of the upper and lower boundary beams, and the distance between any two adjacent embedded anchor plates is not more than 1200mm;
in the step S2, after a plurality of high-altitude formwork supporting platforms are sequentially erected in the long side direction of the upper and lower boundary beams, the distance between any two adjacent main beam steels is not more than 1200mm, and the distance between any two adjacent supporting steels is not more than 1200mm.
According to the construction method of the large-span high-altitude formwork support based on the high-altitude formwork support platform, the end face, opposite to the main beam steel, of the support steel is provided with the third connecting plates, the end face, opposite to the support steel, of the main beam steel is provided with the plurality of fourth connecting plates correspondingly abutted against the third connecting plates, and the third connecting plates are connected with the corresponding fourth connecting plates through the first fasteners;
in step S2, the girder steel and the support steel are pre-assembled by the first fastener and then hoisted to an adjacent floor adjacent to the top of the building for erection.
According to the construction method of the large-span high-altitude formwork support based on the high-altitude formwork support platform, the number of the support steels is 2, the two support steels are arranged at intervals in the long edge direction of the main beam steel and symmetrically arranged about the longitudinal central line of the main beam steel, and the two first connecting plates are symmetrically arranged about the longitudinal central line of the main beam steel and are respectively positioned on the outer sides of the two third connecting plates.
According to the construction method of the large-span high-altitude formwork support based on the high-altitude formwork support platform, the included angle between the support steel and the main beam steel is as follows: 50-56 degrees, and the longitudinal distance between the upper end and the lower end of each support steel is not more than 4850mm.
According to the construction method of the large-span high-altitude formwork support based on the high-altitude formwork support platform, the orthographic projection of the support steel on the main beam steel completely falls on the main beam steel, and the transverse distance between the upper end and the lower end of each support steel is not more than 3450mm.
According to the construction method of the large-span high-altitude formwork support based on the high-altitude formwork support platform, the positioning columns are symmetrically arranged relative to the longitudinal center line of the main beam steel, and the distance between every two adjacent positioning columns is increased and then decreased in the direction from the middle of the main beam steel to the two ends of the main beam steel.
The construction method of the large-span high-altitude formwork support based on the high-altitude formwork support platform further comprises the following steps,
s4: after the formwork support frame is erected, arranging a top frame on the formwork support frame;
wherein, step S3 includes the following steps:
s31: paving steel basketry sheets at the upper ends of the high-altitude formwork supporting platforms, and paving a plurality of steel pipes crossing the high-altitude formwork supporting platforms, wherein each steel pipe is respectively arranged between two adjacent positioning columns and connected to the main beam steel through a steel pipe fastener;
s32: a plurality of upright posts are correspondingly clamped into the positioning columns, a floor sweeping rod, a horizontal rod and a cross brace are sequentially arranged on the upright posts, and finally, a jacking steel pipe is arranged at the upper end of each upright post;
wherein, the roof-rack includes the side frame that two relative settings set up, locate each the link of side frame upper end, connect two the support frame of link, locate the first connecting rod of support frame upper end and locating the second connecting rod of first connecting rod upper end, step S4 includes following step:
s41: respectively hanging the two side frames to the upper end of a support mould frame;
s42: the connecting frames and the supporting frames are hung to the upper ends of the side frames, wherein the two connecting frames are respectively welded with the two side frames, and the supporting frames are welded with the two connecting frames;
s43: the first connecting rod is hung to the upper end of the support frame and is welded on the support frame;
s44: and hoisting the second connecting rod to the upper end of the first connecting rod, and welding the second connecting rod on the first connecting rod.
Compared with the prior art, the invention has the following advantages:
according to the invention, the high-altitude supporting base frame for erecting the upper supporting frame is formed by the main beam steel which spans the two opposite side beams on the upper layer and the plurality of supporting steels of which one ends are abutted to the side beams on the lower layer, and then the supporting frame is arranged on the high-altitude supporting base frame, so that the phenomenon that the supporting frame is erected from the bottom layer to the top is avoided, and the high-altitude supporting base frame is simple to operate, low in operation difficulty and short in construction period.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below.
Fig. 1-4 are schematic construction steps of a large-span high-altitude formwork support construction method based on a high-altitude formwork support platform according to an embodiment of the invention;
FIG. 5 is an enlarged view of a portion of FIG. 2 at A;
FIG. 6 is a partial top view of FIG. 2;
FIG. 7 is a schematic structural diagram of an aerial formwork platform;
FIG. 8 is an enlarged view of a portion of FIG. 7 at B;
fig. 9 is a partially enlarged view of fig. 7 at C.
[ detailed description ] embodiments
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
The embodiment is as follows: as shown in fig. 1-9, the high-altitude formwork erecting construction method based on the high-altitude formwork erecting platform comprises a main beam steel 1 for crossing and connecting opposite side beams of a building, and a plurality of support steels 2 extending downwards from the lower side of the main beam steel 1 and connecting the side beams of the building in an inclined manner, wherein the support steels 2 are arranged at intervals in the long edge direction of the main beam steel 1, and a plurality of positioning columns 3 are arranged on the upper side of the main beam steel 1 in the long edge direction of the main beam steel in an inclined manner, and the construction method comprises the following steps:
s1: embedding anchor plates 10 on boundary beams of two adjacent floors close to the top of a building;
s2: hoisting the high-altitude formwork supporting platform to the adjacent floors, enabling the main beam steel 1 to stretch across two opposite side beams on the upper layer and be connected with the embedded anchor plate 10 on the upper layer, enabling the lower end of each supporting steel 2 to abut against the side beam on the lower layer and be connected with the embedded anchor plate 10 on the lower layer, and repeating the steps in such a way, sequentially supporting a plurality of high-altitude formwork supporting platforms in the long edge direction of the side beams on the upper layer and the lower layer to form a high-altitude supporting base frame;
s3: after the high-altitude supporting base frame is erected, arranging a supporting die frame on the high-altitude supporting base frame;
wherein, step S3 includes the following steps:
s31: a steel fence sheet 20 is laid at the upper end of each high-altitude formwork supporting platform, and a plurality of steel pipes 30 which cross each high-altitude formwork supporting platform are laid, wherein each steel pipe 30 is respectively arranged between two adjacent positioning columns 3 and is connected to the main beam steel 1 through a steel pipe fastener (not shown in the figure);
s32: correspondingly clamping a plurality of upright posts 40 into each positioning column 3, sequentially arranging a floor sweeping rod (not marked in the figure), a horizontal rod (not marked in the figure) and a shear support (not marked in the figure) on the upright posts 40, and finally arranging a jacking steel pipe 50 at the upper end of each upright post 40;
s4: after the formwork support frame is erected, arranging a top frame 60 on the formwork support frame;
the top frame 60 includes two side frames 601 disposed oppositely, a connecting frame 602 disposed at an upper end of each side frame 601, a supporting frame 603 connected to the two connecting frames 602, a first connecting rod 604 disposed at an upper end of the supporting frame 603, and a second connecting rod 605 disposed at an upper end of the first connecting rod 604, and the step S4 includes the following steps:
s41: respectively hanging the two side frames 601 to the upper ends of the mold support frames;
s42: the connecting frames 602 and the supporting frames 603 are hung to the upper ends of the side frames 601, wherein the two connecting frames 602 are respectively welded with the two side frames 601, and the supporting frames 603 are welded with the two connecting frames 602;
s43: hanging the first connecting rod 604 to the upper end of the supporting frame 603, and welding the first connecting rod to the supporting frame 603;
s44: the second link 605 is hung to the upper end of the first link 604 and welded to the first link 604.
According to the scheme, the plurality of large-span high-altitude formwork supporting platforms for supporting the upper formwork supporting frame are arranged on the two adjacent floors adjacent to the top of the building, so that high-altitude supporting of the upper formwork supporting frame is realized, the upper formwork supporting frame does not need to be erected upwards from the bottom layer, and the high-altitude formwork supporting system is simple to operate, low in operation difficulty and short in construction period.
Furthermore, in order to simplify the structure and facilitate the implementation, two first connecting plates 4 are arranged on the end face, opposite to the support steel 2, of the main beam steel 1, the two first connecting plates 4 are respectively arranged at two ends of the long edge direction of the main beam steel 1 and are used for connecting with the building boundary beam, and a second connecting plate 5 used for connecting with the building boundary beam is arranged on one side, back to the main beam steel 1, of the support steel 2. In step S1, the embedded anchor plates 10 are fixed to the boundary beams of the floors by chemical bolts, in step S2, the contact surfaces of the first connecting plates 4 and the embedded anchor plates 10 on the boundary beams on the upper layer are fully welded, and the contact surfaces of the second connecting plates 5 and the embedded anchor plates 10 on the boundary beams on the lower layer are fully welded.
Further, in order to improve the stability of the support, in step S1, the embedded anchor plate 10 is embedded at a position at least 200mm away from the edge of the upper boundary beam, and in step S2, the first connecting plate 4 is at least 200mm away from the edge of the upper boundary beam after being fully welded with the embedded anchor plate 10 on the upper boundary beam.
Further, in order to improve the stability of the support, in step S1, a plurality of embedded anchor plates 10 are embedded at intervals in the long side direction of the upper and lower boundary beams, and the distance between any two adjacent embedded anchor plates 10 is not more than 1200mm;
in step S2, after a plurality of high-altitude formwork supporting platforms are sequentially erected in the long side direction of the upper and lower boundary beams, the distance between any two adjacent main beam steels 1 is not more than 1200mm, and the distance between any two adjacent supporting steels 2 is not more than 1200mm.
Furthermore, in order to simplify the structure and facilitate the implementation, a third connecting plate 6 is arranged on the end surface of the support steel 2 opposite to the main beam steel 1, a plurality of fourth connecting plates 7 correspondingly abutted against the third connecting plates 6 are arranged on the end surface of the main beam steel 1 opposite to the support steel 2, and each third connecting plate 6 is connected with the corresponding fourth connecting plate 7 through a first fastener (not marked in the figure);
in step S2, the girder steel 1 and the support steel 2 are pre-assembled by the first fastener and then hoisted to an adjacent floor adjacent to the top of the building for erection.
Further, in order to improve the stability of supporting, the number of the support steels 2 is 2, the two support steels 2 are arranged at intervals in the long side direction of the girder steel 1 and symmetrically arranged about the longitudinal center line of the girder steel 1, and the two first connecting plates 4 are symmetrically arranged about the longitudinal center line of the girder steel 1 and are respectively located at the outer sides of the two third connecting plates 6.
Furthermore, in order to improve the stability of the support, the two support steels 2 are inclined outwards and extended to be in a shape of a Chinese character 'ba'.
Further, in order to improve the stability of supporting, the included angle between the support steel 2 and the girder steel 1 is as follows: 50-56 degrees, preferably 56 degrees, and the longitudinal distance between the upper end and the lower end of each supporting steel 2 is not more than 4850mm.
Further, in order to improve the stability of supporting, the orthographic projection of the supporting steel 2 on the main beam steel 1 completely falls on the main beam steel 1, and the transverse distance between the upper end and the lower end of each supporting steel 2 is not more than 3450mm.
Further, in order to improve the stability of supporting, the positioning columns 3 are symmetrically arranged about the longitudinal center line of the main beam steel 1, and in the direction from the middle of the main beam steel 1 to the two ends, the distance between every two adjacent positioning columns 3 is increased and then decreased.
It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, which are used only to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention. Furthermore, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing and simplifying the present invention, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
The foregoing is illustrative of one or more embodiments provided in connection with the detailed description and is not intended to limit the invention to the precise form disclosed. Similar or identical methods and structures, or technical deductions or substitutions on the premise of the conception of the invention should be regarded as the protection scope of the invention.

Claims (10)

1. The construction method of the large-span high-altitude formwork support based on the high-altitude formwork support platform is characterized in that the high-altitude formwork support platform comprises main beam steel for crossing and connecting opposite side beams of a building and a plurality of support steel for extending and connecting the side beams of the building from the lower side of the main beam steel downwards in an inclined mode, the support steel is arranged at intervals in the long edge direction of the main beam steel, a plurality of positioning columns are arranged on the upper side of the main beam steel in the long edge direction of the main beam steel, and the construction method comprises the following steps:
s1: embedding anchor plates on boundary beams of two adjacent floors close to the top of a building;
s2: hoisting the high-altitude formwork supporting platform to the adjacent floor, enabling the main beam steel to stretch across two opposite side beams on the upper layer and be connected with the embedded anchor plates, enabling the lower ends of the supporting steels to abut against the side beams on the lower layer and be connected with the embedded anchor plates, and repeating the steps in such a way, sequentially supporting a plurality of high-altitude formwork supporting platforms in the long edge direction of the side beams on the upper layer and the lower layer to form a high-altitude supporting base frame;
s3: after the high-altitude supporting base frame is erected, a formwork support frame is arranged on the high-altitude supporting base frame.
2. The construction method of the large-span high-altitude formwork erecting frame based on the high-altitude formwork erecting platform is characterized in that two first connecting plates are arranged on the end face, opposite to the support steel, of the main beam steel, and the two first connecting plates are respectively arranged on the two ends of the main beam steel in the long-edge direction and are used for being connected with building edge beams;
a second connecting plate for connecting the building boundary beam is arranged on one side of the supporting steel back to the main beam steel;
in the step S1, the embedded anchor plates are fixed on the boundary beams of the floors through chemical bolts, in the step S2, the contact surfaces of the first connecting plate and the embedded anchor plates on the boundary beams on the upper layer are fully welded, and the contact surfaces of the second connecting plate and the embedded anchor plates on the boundary beams on the lower layer are fully welded.
3. The construction method of the large-span high-altitude formwork support based on the high-altitude formwork support platform is characterized in that in the step S1, embedded anchor plates are embedded at a position at least 200mm away from the edge of an upper-layer boundary beam;
in the step S2, the first connecting plate and the embedded anchor plate on the upper layer boundary beam are welded fully and then are at least 200mm away from the edge of the upper layer boundary beam.
4. The construction method of the large-span high-altitude formwork support platform based on the high-altitude formwork support platform is characterized in that in the step S1, a plurality of embedded anchor plates are embedded at intervals in the long edge direction of the upper and lower boundary beams, and the distance between any two adjacent embedded anchor plates is not more than 1200mm;
in the step S2, after a plurality of high-altitude formwork supporting platforms are sequentially erected in the long side direction of the upper and lower boundary beams, the distance between any two adjacent main beam steels is not more than 1200mm, and the distance between any two adjacent supporting steels is not more than 1200mm.
5. The construction method of the large-span high-altitude formwork support based on the high-altitude formwork support platform is characterized in that a third connecting plate is arranged on the end face, opposite to the main beam steel, of the support steel, a plurality of fourth connecting plates correspondingly abutted against the third connecting plates are arranged on the end face, opposite to the support steel, of the main beam steel, and each third connecting plate is connected with the corresponding fourth connecting plate through a first fastener;
in step S2, the girder steel and the support steel are pre-assembled by the first fastener and then hoisted to an adjacent floor adjacent to the top of the building for erection.
6. The high-altitude formwork platform-based large-span high-altitude formwork construction method as claimed in claim 5, wherein the number of the support steels is 2, the two support steels are arranged at intervals in a long side direction of the main beam steel and symmetrically arranged about a longitudinal center line of the main beam steel, and the two first connecting plates are symmetrically arranged about the longitudinal center line of the main beam steel and are respectively located at outer sides of the two third connecting plates.
7. The construction method of the large-span high-altitude formwork support based on the high-altitude formwork support platform is characterized in that the included angle between the support steel and the main beam steel is as follows: 50-56 degrees, and the longitudinal distance between the upper end and the lower end of each support steel is not more than 4850mm.
8. The high-altitude formwork platform-based large-span high-altitude formwork construction method as claimed in claim 1, wherein an orthographic projection of the support steels on the main beam steels completely falls on the main beam steels, and a transverse distance between an upper end and a lower end of each support steel is not greater than 3450mm.
9. The high-altitude formwork supporting construction method based on the high-altitude formwork platform is characterized in that the positioning columns are symmetrically arranged relative to the longitudinal center line of the main beam steel, and the distance between every two adjacent positioning columns is increased and then decreased in the direction from the middle of the main beam steel to the two ends of the main beam steel.
10. The construction method of the large-span high-altitude formwork support based on the high-altitude formwork support platform as claimed in claim 1, further comprising,
s4: after the formwork support frame is erected, arranging a top frame on the formwork support frame;
wherein, step S3 includes the following steps:
s31: paving steel basketries on the upper end of each high-altitude formwork supporting platform, and paving a plurality of steel pipes crossing each high-altitude formwork supporting platform, wherein each steel pipe is respectively arranged between two adjacent positioning columns and connected to the main beam steel through a steel pipe fastener;
s32: a plurality of upright posts are correspondingly clamped into the positioning columns, a floor sweeping rod, a horizontal rod and a cross brace are sequentially arranged on the upright posts, and finally, a jacking steel pipe is arranged at the upper end of each upright post;
wherein, the roof-rack includes the side frame that two relative settings set up, locate each the link of side frame upper end, connect two the support frame of link, locate the first connecting rod of support frame upper end and locating the second connecting rod of first connecting rod upper end, step S4 includes following step:
s41: respectively hoisting the two side frames to the upper ends of the die support frames;
s42: the connecting frames and the supporting frames are hung to the upper ends of the side frames, wherein the two connecting frames are respectively welded with the two side frames, and the supporting frames are welded with the two connecting frames;
s43: the first connecting rod is hung to the upper end of the supporting frame and is welded on the supporting frame;
s44: and hoisting the second connecting rod to the upper end of the first connecting rod, and welding the second connecting rod on the first connecting rod.
CN202210944970.1A 2022-08-08 2022-08-08 Large-span high-altitude formwork support construction method based on high-altitude formwork support platform Pending CN115306145A (en)

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CN214246565U (en) * 2020-12-31 2021-09-21 中国电建集团重庆工程有限公司 Scaffold support platform and high-altitude large-span beam formwork support system
CN216740047U (en) * 2022-01-06 2022-06-14 中建铁路投资建设集团有限公司 Overhead tool type steel platform with high altitude and large span
CN114718297A (en) * 2022-03-31 2022-07-08 绍兴宝合建筑设计有限公司 Assembled steel construction floor template support frame
CN114737750A (en) * 2022-05-13 2022-07-12 中化二建集团有限公司 Construction method for reinforced concrete silo top plate template

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JP2000265417A (en) * 1999-03-12 2000-09-26 Kawaju Koji Kk Moving timbering construction method for bridge floor slab overhang section
CN102535845A (en) * 2012-02-14 2012-07-04 浙江省建工集团有限责任公司 Construction method of bearing frame of corridor structure
CN103993735A (en) * 2014-06-06 2014-08-20 山东义泰建设工程有限公司 Support system of roof inclined beam and slab cantilever structure and construction method of support system
CN110512719A (en) * 2019-08-15 2019-11-29 南京建工集团有限公司 A kind of high residential building large span compartment vestibule high-altitude formwork steel platform construction
CN214246565U (en) * 2020-12-31 2021-09-21 中国电建集团重庆工程有限公司 Scaffold support platform and high-altitude large-span beam formwork support system
CN216740047U (en) * 2022-01-06 2022-06-14 中建铁路投资建设集团有限公司 Overhead tool type steel platform with high altitude and large span
CN114718297A (en) * 2022-03-31 2022-07-08 绍兴宝合建筑设计有限公司 Assembled steel construction floor template support frame
CN114737750A (en) * 2022-05-13 2022-07-12 中化二建集团有限公司 Construction method for reinforced concrete silo top plate template

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