CN114508169A - Fabricated platform based on concrete single-cantilever beam and construction method thereof - Google Patents
Fabricated platform based on concrete single-cantilever beam and construction method thereof Download PDFInfo
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- CN114508169A CN114508169A CN202210091342.3A CN202210091342A CN114508169A CN 114508169 A CN114508169 A CN 114508169A CN 202210091342 A CN202210091342 A CN 202210091342A CN 114508169 A CN114508169 A CN 114508169A
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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
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
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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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/32—Safety or protective measures for persons during the construction of buildings
- E04G21/3204—Safety or protective measures for persons during the construction of buildings against falling down
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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
Abstract
The invention provides an assembled platform based on a concrete single-suspension beam and a construction method thereof, wherein the assembled platform comprises a pillar, a frame beam, the single-suspension beam, a widening beam, a plurality of platform beams and a skin steel plate, wherein the widening beam is arranged on one side of the single-suspension beam in parallel, and the top surface of the widening beam is flush with the top surface of the single-suspension beam; the plurality of platform beams are arranged on the widening beam and the single suspension beam, and the skin steel plate is fixedly arranged on the plurality of platform beams to form an integral platform structure. The invention originally provides a safe and reliable scaffold erecting platform aiming at the concrete single-suspended beam, has strong platform integrity and high bending resistance and shearing resistance, meets the requirement of scaffold erection, meets the requirements of fire prevention and corrosion prevention, and solves the problems in the prior art.
Description
Technical Field
The invention relates to the field of scaffold erection on a concrete independent cantilever beam, in particular to an assembled platform based on a concrete independent cantilever beam and a construction method thereof.
Background
Many buildings are designed with concrete independent cantilever beams for various needs. The bottom independent cantilever beam formwork support frame is usually only required to be a conventional floor full-hall support frame, but the floor full-hall support frame is continuously adopted along with the increase of floors, so that the frame body is higher and higher, the construction difficulty, the erection cost and the safety risk are higher and higher, and the scaffold safety technical specification JGJ130-2011 item 6.9.1 specifies that the erection height of the full-hall support frame is not more than 30 meters; if the upper independent cantilever beam formwork support is simply erected on the lower poured concrete independent cantilever beam, the height-width ratio of the support frame body is inevitably not more than 3 which seriously exceeds the standard requirement, so that the stability of the frame body cannot be ensured at all, and casualty accidents in safety production can be directly caused; if the steel beam is changed, new problems are inevitably caused, for example, in the next decades, each layer only has one small number of steel beams, the corrosion prevention and fire prevention maintenance work is very inconvenient and difficult, and if the problems are neglected and not solved, safety accidents are easily caused.
In the prior art, the method of I-shaped steel is adopted, the horizontal wind load bearing capacity of the weak shaft is insufficient by adopting the I-shaped steel, the fireproof requirement cannot be met, and potential safety hazards exist. Whereas if a rectangular cross-section is used, corrosion protection of the inner surface is more difficult. Therefore, it is the best choice to use concrete structures as cantilever beams rather than steel beams. When a concrete structure is selected as the independent cantilever beam, the erection of the independent cantilever beam formwork is really very difficult, and no effective solution for the problems exists in the prior art at present.
Disclosure of Invention
Aiming at the difficulty and the actual requirement of the construction of the independent cantilever beam support frame, the invention provides an assembled platform based on a concrete independent cantilever beam and a construction method thereof.
An assembled platform based on a concrete single-suspension beam comprises pillars, frame beams, the single-suspension beam, a widening beam, a plurality of platform beams and a skin steel plate, wherein the widening beam is arranged on one side of the single-suspension beam in parallel, and the top surface of the widening beam is flush with the top surface of the single-suspension beam; the plurality of platform beams are arranged on the widening beam and the single suspension beam, and the skin steel plate is fixedly arranged on the plurality of platform beams to form an integral platform structure.
Further, still include the bracing, wherein the bracing set up in singly hang the roof beam with between the frame roof beam, the bracing encloses into triangle-shaped with singly hanging roof beam and frame roof beam on the horizontal plane, and the bracing with the contained angle of frame roof beam is less than 45.
Furthermore, each roof beam and the independent suspension beam are fixedly connected through a bolt, the top of the independent suspension beam extending out of the bolt is embedded in the independent suspension beam, long sleeves are welded on two sides of the roof beam corresponding to the positions of the bolts, and the bolts penetrate through the long sleeves to be fixedly connected.
Furthermore, each platform beam comprises a main steel beam and two T-shaped steels, and the two T-shaped steels are arranged on the lower side of the main steel beam and are respectively positioned on the left side and the right side of the independent suspension beam; and connecting plates are arranged on the two T-shaped steels close to the side of the single suspension beam, bolt penetrating holes are formed in the connecting plates, and bolts penetrate through the bolt penetrating holes and are fixedly connected with embedded parts in the single suspension beam.
Furthermore, the steel skin plate is fixedly installed on the platform beam through the upright rod base, and the upright rod base is fixed on the top of the platform beam through welding or bolt connection.
Furthermore, the skin steel plate is a thin skin pattern steel plate, round holes are formed in the position of the set upright stanchion base, all the upright stanchion bases are installed in place along with the platform beam, and after the installation of the whole assembly type platform framework is completed, the skin steel plate is integrally sleeved on the upright stanchion base.
Furthermore, the outer suspension end of the widened beam is connected with adjustable pull rods in an up-down symmetrical mode, and the adjustable pull rods are fixedly connected with embedded parts in the columns.
A construction method of an assembly type platform based on a concrete single-cantilever beam comprises the following steps:
1) rechecking and correcting the top surface elevation and the flatness of the poured single-suspension beam, installing a widening beam parallel to the single-suspension beam, and tensioning the outer end of the widening beam with an upper column poured in advance and a lower column poured in advance by adopting an upper pull rod and a lower pull rod respectively;
2) assembling the main steel beam, the T-shaped steel and the connecting plate to form a platform beam structure, then installing an upright base on the top surface of the main steel beam, and hoisting the platform beam to the independent suspension beam and the widening beam and installing and fixing the platform beam;
3) and mounting a skin steel plate on the upright rod base, erecting a support frame on the covered integral closed platform, inserting the upright rods into the upright rod base one by one, rotating and clamping the upright rods, and then inserting the pin shafts for pin joint to carry out scaffold construction.
Furthermore, the platform beams are vertically fixed with the independent suspension beams, and a plurality of platform beams are arranged in parallel.
Further, the widening beam is fixedly connected with the platform beam through bolts.
Compared with the prior art, the fabricated platform based on the concrete single-cantilever beam and the construction method thereof provided by the invention have the following beneficial effects:
1. the assembled platform based on the concrete single-suspended beam provided by the invention initiatively provides a safe and reliable scaffold erecting platform aiming at the concrete single-suspended beam, the platform is strong in integrity and high in bending resistance and shearing resistance, the requirement for erecting the scaffold is met, the fireproof and anticorrosive requirements are met, and the problems in the prior art are solved.
2. The inclined supports, the single-suspension beams and the frame beams are enclosed to form a triangle on the horizontal plane, and the included angle between the inclined supports and the frame beams is less than 45 degrees, so that the lower-layer single-suspension beams which are poured are effectively horizontally reinforced, and the torsion resistance bearing capacity and the stability of the lower-layer single-suspension beams are greatly improved. And meanwhile, at least two layers of support frames of the poured single-suspension beam are temporarily reserved under the poured single-suspension beam and are not dismounted, and then the poured single-suspension beam with at least two layers of dismounted support frames downwards is jacked back by adopting a steel pipe and an adjustable jacking. Therefore, when the layer is constructed, a plurality of layers of poured independent suspension beams are arranged below the layer to jointly bear construction load. Therefore, the lower-layer poured single-cantilever beam is used for building the formwork support frame of the layer for construction and pouring of the single-cantilever beam of the layer, and the safety can be completely ensured from the bearing capacity angle of the poured single-cantilever beam.
3. The independent suspension beam and the platform beam are firmly connected, and the stability and the bending resistance of the platform are greatly improved. When each platform beam and the poured independent suspension beam are fixedly connected through bolts, each platform beam and the widened beam are equivalently fixedly connected through bolts, the outer suspension end of the widened beam is connected with the concrete structure in a tensioning mode through the upper and lower tensioning pull rods, the widened beam has enough rigidity, the required platform framework for the support frame to be erected is already formed into a whole and has enough rigidity, and the corner of the platform can be basically regarded as equivalent to the concrete structure in the position of consolidation.
4. After the main steel beam and the T-shaped steel are welded and overlapped, the cross section height is very high, so that the rigidity is very high, and the deflection is nearly zero, thereby ensuring that each mechanical index meets the safety requirement, and improving the rigidity and the safety guarantee of the whole complete platform. Because the rigidity of the widening beam is large enough to the disturbance degree which is nearly zero, the disturbance degree of the outer end part of the main steel beam is also nearly zero, so that the rigidity of the assembled platform framework is very large enough to ensure all possible unbalanced loads in the construction process, the platform has enough strength under the action of single-point loads even accidental special impact loads and the like, and especially has enough rigidity to ensure that the integral instability caused by local single-point instability is avoided, thereby sufficiently ensuring the safety.
5. Each frame of platform beam is completely pulled and connected into an integral platform from the surface by the skin pattern steel plate, the integrity, the integral rigidity and the bearing capacity of the whole platform are greatly enhanced, when any point on the platform is subjected to single-point load, the single-point load can be rapidly transmitted to a corresponding range around the point to jointly bear and resist, and therefore the situation that the disturbance degree of the point is large due to sudden single-point or local load, further load unevenness is increased, and the local instability is caused, and finally the whole instability is avoided.
6. The covering pattern steel plate simultaneously plays a closed role in the whole platform, so that a good protection effect is achieved for high-altitude falling and high-altitude falling objects which must be avoided in subsequent construction, and the construction safety guarantee is improved.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic view of the overall structure of an assembly type platform based on a concrete cantilever beam of the invention;
FIG. 2 is an exploded view of an overall structure of a fabricated platform based on a concrete cantilever beam according to the present invention;
FIG. 3 is a schematic diagram of a scaffold erected on an assembly type platform based on a concrete single-cantilever beam;
the figures show that:
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will aid those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any manner. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
Example 1
The invention relates to an assembled platform integral structure based on a concrete single-suspension beam, which is shown in the attached drawings 1-2 and comprises a column 20, a frame beam 4, the single-suspension beam 1, a widened beam 13, inclined struts 7-8, a platform beam 26 and a skin steel plate 35, wherein the inclined struts 7-8 are arranged between the single-suspension beam 1 and the frame beam 4, and the widened beam 13 is arranged on one side of the single-suspension beam 1 in parallel and is flush with the top surface of the single-suspension beam 1; and a plurality of platform beams 26 are arranged on the common flush top surface of the single suspension beam 1 and the widened beam 13, and skin steel plates 35 are fixedly arranged on the plurality of platform beams 26 to form an integral platform structure.
Each platform beam 26 is fixedly connected with the poured independent suspension beam 1 through bolts. The inclined struts 7 and 8, the independent suspension beam 1 and the frame beam 4 enclose a triangle on the horizontal plane, and the included angle between the inclined struts 7 and 8 and the frame beam 4 is less than 45 degrees.
Each platform beam 26 comprises a main steel beam 26-1, T-shaped steel 26-2 and connecting plates 26-3, wherein the T-shaped steel 26-2 is formed by cutting off the upper flange of an I-shaped steel, the T-shaped steel 26-2 is fixed below the main steel beam 26-1, the two T-shaped steel 26-2 are arranged on two sides of the independent beam 1 respectively, one side, close to the independent beam 1, of the T-shaped steel 26-2 is fixedly provided with the connecting plates 26-3, and the connecting plates 26-3 are provided with bolt through holes 26-4. When each platform beam 26 is arranged on the independent suspension beam 1, the main steel beam 26-1 is perpendicular to the independent suspension beam 1, the T-shaped steel 26-2 below the main steel beam 26-1 is respectively positioned at two sides of the independent suspension beam 1 to clamp the independent suspension beam 1 to form a C-shaped surrounding structure, and then the platform beam 26 is fixedly connected with the independent suspension beam 1 through bolts penetrating through bolt holes 26-4 formed in the connecting plates 26-3.
The platform beam 26 is welded with long sleeve groups 30 through stiffening plates welded with a web plate of the main steel beam 26-1 at the crossed part of the platform beam and the poured independent suspension beam 1 below, each long sleeve group 30 comprises a plurality of long sleeves, and the length of each long sleeve is not less than the section height of the welded and attached main steel beam 26-1; below each long sleeve, the top surface of the poured independent suspension beam 1 is close to two sides and crossed with the main steel beam 26-1, and the positions corresponding to the long sleeves on the two sides of the main steel beam 26-1 are embedded with a corresponding number of long bolts to form a long bolt group 31. During installation, the long bolts penetrate through the long sleeves and then are fixed, so that the platform beam 26 is stably connected with the independent suspension beam 1, and the connection strength and the bending resistance and torsion resistance are greatly improved.
Upright post base 34 mounting holes 32 are longitudinally and continuously formed in the upper flanges above the two sides of the web plate of the main steel beam 26-1, every four holes form a group, and one upright post base 34 can be mounted in each group, so that a suitable hole group can be selected according to the requirement of the designed upright post interval.
The upright rod base 34 comprises a bottom plate 34-1, the bottom plate 34-1 is provided with four mounting holes 32, and the four mounting holes on each bottom plate 34-1 correspond to hole groups which are continuously arranged on the upper flange of the main steel beam 26-1 along the longitudinal direction; a lower connecting block is welded at the center of the bottom plate 34-1, an upper connecting block is welded at the bottom of the vertical rod, and the upper connecting block and the lower connecting block can be effectively clamped after the upper connecting block is inserted into the lower connecting block through the vertical rod and rotates by 90 degrees; the bottom plate 34-1 is welded with a sleeve 34-4, and the lower connecting block is positioned in the sleeve 34-4. The sleeve 34-4 is provided with threads at the full height outside, and the sleeve 34-4 is provided with a lower nut 34-2, a lower clamping pad 34-3, an upper nut 34-6 and an upper clamping pad 34-5. In addition, the sleeve 34-4 is provided with a pair of through holes in the radial direction close to the top, so that the upright post can be conveniently inserted and rotated by 90 degrees and then is pinned by a bolt 34-7. Four mounting holes 32 arranged on the upright rod base 34 and bolts 33 connected with the platform beam 26 are all positioned on the outer ring of the sleeve 34-4 for consolidation and can transmit bending moment. The pole is inserted into the sleeve 34-4 with sufficient depth and with both a bottom swivel snap and a top latch 34-7 anti-swivel pin connection, thereby also efficiently transmitting bending moments. Therefore, when bending moment is generated by the support frame 43 due to various possible conditions in the construction process, the bending moment can be effectively transmitted to the upright stanchion base 34, the platform beam 26 and the concrete structure, and the concrete structure has enough bearing capacity and enough safety guarantee.
The covering steel plate 35 is a thin skin pattern steel plate, round holes are formed according to the set positions of the upright stanchion bases 34, when all the upright stanchion bases 34 are installed in place along with the platform beams 26, and the whole platform framework is installed, the covering steel plate 35 is integrally sleeved on the sleeve pipes 34-4 of the upright stanchion bases 34, and the lower nuts 34-2 and the upper nuts 34-6 which are respectively positioned below the covering pattern steel plate on each base are screwed towards the direction of the covering pattern steel plate one by one, so that the covering pattern steel plate is clamped and nailed firmly through the lower clamping pads 34-3 and the upper clamping pads 34-5, when all the upright stanchion bases 34 clamp and nailed the covering pattern steel plate, the covering pattern steel plate plays a structural covering role, namely, each platform beam 26 is completely pulled from the surface to form an integral platform, and the integrity, the integral rigidity and the bearing capacity of the whole platform are greatly enhanced, when any point on the platform is subjected to single-point load, the load can be rapidly transmitted to a corresponding range around the point to jointly bear and resist, so that the situation that the disturbance degree of the point is large due to sudden single-point or local load is avoided, the load is further increased unevenly, and the local instability is caused, and finally the overall instability is avoided. The covering pattern steel plate simultaneously plays a closed role in the whole platform, so that a good protection effect is achieved for high-altitude falling and high-altitude falling objects which must be avoided in subsequent construction, and the construction safety guarantee is improved.
The widening beam 13 is fixedly connected with the platform beam 26 through bolts. Specifically, a plurality of platform beams 26 are arranged above the widened beam 13 and are perpendicular to the widened beam 13 and the independent suspension beam 1, a lower nut group 37 formed by a plurality of long nuts is welded on two side plates of the widened beam 13 at the intersection part of the platform beams 26, and two second threaded holes 39 are formed in the upper flange plates on the top surfaces of two sides of the core I-steel web of the box beam at the lower nut group 37 in a diagonal arrangement mode; an upper nut group 36 formed by four long nuts is welded on two sides of the platform beam at the intersection part of the widened beam 13 through stiffening plates welded with the web plate, and two second bolt through holes 38 are arranged on the lower flange plates at the positions of the upper nut group 36 on the bottom surfaces of the I-shaped steel web plates of the platform beam 26 in a diagonal manner; two pre-tightening bolts 41 are adopted to penetrate through the second bolt penetrating holes 38 on the lower flange plate of the platform beam 26 and are screwed into the two second threaded holes 39 on the upper flange plate of the widening beam 13 for fastening, so that the screw hole alignment state of the upper nut group and the lower nut group which are screwed in the process of machining and manufacturing can be reproduced. Therefore, four nuts of the upper nut group 36 and four nuts of the lower nut group 37 are conveniently and correspondingly screwed and fastened by four third long nuts 40, and the bolts and the nuts are all positioned on the outer rings of the crossed parts of the two beams, so that the assembly type consolidation equivalent to welding is formed, the consolidation effect is ensured, and the platform assembling and disassembling construction under the field complex environment is convenient.
Connecting lug plates 16 and 17 are arranged on upper and lower flange plates at the outer suspension end of the widening beam 13 in a vertically symmetrical welding mode, the upper connecting lug plate 16 is connected with a second connecting plate at the lower end of an upper adjustable pull rod 19 through a first high-strength bolt 18, and a hanger at the upper end of the upper adjustable pull rod 19 is connected with four first long nuts 25 pre-buried in a pillar 20 poured in advance during construction of the layer through four first high-strength bolts 18; the lower connecting lug plate 17 is connected with a third connecting plate at the upper end of a lower adjustable pull rod 21 through second high-strength bolts 22, and a tie 23 at the lower end of the lower adjustable pull rod 21 is connected with four first long nuts 25 pre-embedded in a column poured before the construction of the layer through four second high-strength bolts 22.
Example 2
A construction method of an assembled platform integral structure based on a concrete single-cantilever beam comprises the following steps:
1. rechecking and correcting the top surface elevation and the flatness of the poured single-cantilever beam 1, installing a widening beam 13, and respectively tensioning the outer end of the widening beam 13 on an upper column poured in advance and a lower column poured in advance by adopting an upper pull rod 19 and a lower pull rod 21;
2. assembling the main steel beam 26-1, the T-shaped steel 26-2 and the connecting plate 26-3 to form a platform beam structure, then installing an upright base 34 on the platform beam 26, and hoisting the platform beam 26 to the independent suspension beam 1 and the widened beam 13 for installation and fixation;
3. mounting a skin steel plate 35 on the upright base 34, erecting a support frame 43 on the covered integrally-closed platform, inserting the uprights one by one into the upright base 34, rotationally clamping, and then connecting with a pin through an insertion pin shaft to carry out scaffold construction, as shown in fig. 3.
Specifically, the bottommost layer is constructed by adopting a floor support frame, and embedded parts are embedded in column concrete of the bottommost layer independent suspension beam and the inner end of the independent suspension beam 1 when the bottommost layer concrete is poured; a second layer, namely a pillar below the bottom of the beam at the inner end of the single-suspension beam 1 to be constructed on the layer is poured in advance, and an embedded part is embedded in the concrete of the pillar;
removing formworks on two sides of the single-suspension beam 1 poured on the bottommost layer and upright rods on two sides of the beam above the beam bottom height; installing a reinforcing inclined strut on the inner side of the single-cantilever beam 1 poured at the bottommost layer; installing a widened beam 13 on the inner side of the single-cantilever beam 1 poured at the bottommost layer; determining the number of the required platform beams 26 according to the designed vertical pole longitudinal distance;
the upright stanchion bases 34 are arranged on the platform beam 26 according to the designed transverse spacing and number of the upright stanchions; slightly shaping the deviation of each bolt of a long bolt group 31 pre-embedded on the top surface of the poured single-suspension beam 1 by using an F wrench to ensure that the central position above the middle part of each bolt is accurate;
rechecking and correcting the elevation and the flatness of the top surface of the poured cantilever beam 1, wherein the elevation does not have positive deviation, the negative deviation adopts high-strength quick-setting mortar for leveling, and the flatness standard is executed according to the acceptance standard of concrete construction;
the method comprises the following steps of (1) hanging a widening beam 13 by a tower crane, fixedly connecting end plates 7-3, 8-3, 7-4 and 8-4 welded at the inner end of the widening beam 13 with a third long nut group 15 pre-embedded in poured concrete by four long bolts 14, and respectively tensioning the outer end of the widening beam 13 on an upper column poured in advance and a lower column poured in advance by adopting an upper pull rod 19 and a lower pull rod 21;
lifting the platform beam 26 provided with the upright base 34 by using a tower crane or manually lifting the platform beam 26 to enable the platform beam 26 to be vertical to each other above the single-hanging beam 1 poured at the bottom layer, certainly, also to be vertical to each other above the widened beam 13, and slowly releasing the platform beam 26 downwards to enable a sleeve group 30 arranged on the platform beam 26 to be sleeved into the embedded long bolt group 31, so that a connecting plate 26-3 at the inner end of the T-shaped steel 26-2 positioned below the platform beam 26 is clamped at two sides of the single-hanging beam 1 poured;
tightening an upper nut group 36 welded at the large suspension end of the platform beam 26 and a lower nut group 37 welded at the installed widened beam 13 by four long bolts to form consolidation;
connecting plates 26-3 at two sides of the poured independent suspension beam 1 by using tensioning bolts 27 and jacking bolts 29 respectively; and installing the skin steel plate.
And (3) erecting a support frame 43 on the covered integral closed platform: the vertical rods are inserted into the vertical rod base 34 one by one, and then are connected with the vertical rods through the pin shafts. The vertical and horizontal distances and the step distances of the upright stanchions of the frame body are subject to the design of a scheme, and the construction measures of the frame body are subject to the standards.
Three sets of platforms are configured, when the pouring strength of the construction concrete on the layer is not lower than C15, the form removal strength of the overhanging component is 100% of the design strength according to the standard, and the support direction below the lowest set of platform can be detached and recycled.
During construction of the layer, the lower part is not less than two layers of support frames which are not dismantled, and then a back-jacking measure is downwards taken according to needs, so that the multi-layer structural beams below the construction layer jointly bear construction loads, and the scheme calculation is used for sharing the loads of each layer.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but 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 application.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (10)
1. An assembled platform based on a concrete independent suspension beam comprises pillars (20), frame beams (4) and an independent suspension beam (1), and is characterized by further comprising a widening beam (13), a plurality of platform beams (26) and a skin steel plate (35), wherein the widening beam (13) is arranged on one side of the independent suspension beam (1) in parallel, and the top surface of the widening beam (13) is flush with the top surface of the independent suspension beam (1); the plurality of platform beams (26) are arranged on the widening beam (13) and the independent suspension beam (1), and the skin steel plate (35) is fixedly arranged on the plurality of platform beams (26) to form an integral platform structure.
2. The assembly type platform based on the concrete independent cantilever beam is characterized by further comprising an inclined strut, wherein the inclined strut is arranged between the independent cantilever beam (1) and the frame beam (4), the inclined strut, the independent cantilever beam (1) and the frame beam (4) enclose a triangle on a horizontal plane, and the included angle between the inclined strut and the frame beam (4) is smaller than 45 degrees.
3. The fabricated platform based on the concrete independent suspension beam as claimed in claim 1, wherein each platform beam (26) is fixedly connected with the independent suspension beam (1) through a bolt, the top of the independent suspension beam (1) extending out of the bolt is embedded in the independent suspension beam (1), long sleeves are welded on two sides of the platform beam (26) corresponding to the positions of the bolts, and the bolts penetrate through the long sleeves to be fixedly connected.
4. The fabricated platform based on the concrete independent suspension beam as claimed in claim 1, wherein each platform beam (26) comprises a main steel beam (26-1) and T-shaped steel (26-2), the T-shaped steel (26-2) is two, and the two T-shaped steel (26-2) are arranged at the lower side of the main steel beam (26-1) and are respectively positioned at the left side and the right side of the independent suspension beam; connecting plates (26-3) are arranged on the two T-shaped steels (26-2) close to the side of the independent suspension beam, bolt through holes (26-4) are formed in the connecting plates (26-3), and bolts penetrate through the bolt through holes (26-4) to be fixedly connected with embedded parts in the independent suspension beam.
5. The fabricated platform based on the concrete independent cantilever beam as claimed in claim 1, wherein the skin steel plate (35) is fixedly installed on the platform beam (26) through the vertical rod base (34), and the vertical rod base (34) is fixed on the top of the platform beam (26) through welding or bolt connection.
6. The fabricated platform based on the concrete cantilever beam as claimed in claim 1, wherein the skin steel plate (35) is a thin skin pattern steel plate, round holes are formed according to the set positions of the upright rod bases (34), and after all the upright rod bases (34) are installed in place along with the platform beam (26) and the whole fabricated platform framework is installed, the skin steel plate (35) is integrally sleeved on the upright rod bases (34).
7. The assembly type platform based on the concrete cantilever beam of claim 1, wherein the cantilever end of the widening beam (13) is connected with adjustable pull rods in a vertical symmetrical manner, and the adjustable pull rods are fixedly connected with embedded parts in the columns.
8. The construction method of the fabricated platform based on the concrete independent-hanging beam as claimed in claim 1, characterized by comprising the following steps:
1) rechecking and correcting the elevation and the flatness of the top surface of the poured single-suspension beam, installing a widening beam parallel to the single-suspension beam, and tensioning the outer end of the widening beam with an upper column poured in advance and a lower column poured in advance respectively by adopting an upper pull rod and a lower pull rod;
2) assembling a main steel beam (26-1), T-shaped steel (26-2) and a connecting plate (26-3) to form a platform beam structure, then installing an upright base (34) on the top surface of the main steel beam (26-1), and hoisting the platform beam (26) to the independent suspension beam and the widening beam and installing and fixing the independent suspension beam and the widening beam;
3) and mounting a skin steel plate (35) on the upright rod base (34), erecting a support frame (43) on the covered integral closed platform, inserting the upright rods into the upright rod base (34) one by one, rotating and clamping the upright rods, and then inserting the upright rods into the pin shaft for pin joint to carry out scaffold construction.
9. The construction method of the fabricated platform based on the concrete independent-suspension beam as claimed in claim 8, wherein the platform beam (26) is vertically fixed with the independent-suspension beam (1), and a plurality of platform beams (26) are arranged in parallel.
10. The construction method of the fabricated platform based on the concrete independent cantilever beam as claimed in claim 8, wherein the widening beam (13) and the platform beam (26) are fixedly connected through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210091342.3A CN114508169B (en) | 2022-01-26 | 2022-01-26 | Fabricated platform based on concrete single-cantilever beam and construction method thereof |
Applications Claiming Priority (1)
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2002100860B4 (en) * | 2002-10-31 | 2002-12-05 | The Australian Safety Scaffold Company Pty Ltd | A scaffolding system |
| CN101363273A (en) * | 2008-08-20 | 2009-02-11 | 山西省第三建筑工程公司 | High altitude rootless construction platform and construction method thereof |
| CN105926916A (en) * | 2016-05-24 | 2016-09-07 | 杭州江润科技有限公司 | Cable-stayed suspended combined supporting system and construction method based on intelligent monitoring |
| CN111236621A (en) * | 2020-01-19 | 2020-06-05 | 中国十七冶集团有限公司 | Fixing system for beam-side embedded overhanging scaffold |
| CN211775609U (en) * | 2020-01-16 | 2020-10-27 | 舜元建设(集团)有限公司 | Integrated form scaffold of independent post roof beam outer frame high-rise building |
| CN111910902A (en) * | 2020-08-05 | 2020-11-10 | 中建八局第二建设有限公司 | Construction method of high-altitude double-layer overlong cantilever reinforced concrete structure |
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- 2022-01-26 CN CN202210091342.3A patent/CN114508169B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2002100860B4 (en) * | 2002-10-31 | 2002-12-05 | The Australian Safety Scaffold Company Pty Ltd | A scaffolding system |
| CN101363273A (en) * | 2008-08-20 | 2009-02-11 | 山西省第三建筑工程公司 | High altitude rootless construction platform and construction method thereof |
| CN105926916A (en) * | 2016-05-24 | 2016-09-07 | 杭州江润科技有限公司 | Cable-stayed suspended combined supporting system and construction method based on intelligent monitoring |
| CN211775609U (en) * | 2020-01-16 | 2020-10-27 | 舜元建设(集团)有限公司 | Integrated form scaffold of independent post roof beam outer frame high-rise building |
| CN111236621A (en) * | 2020-01-19 | 2020-06-05 | 中国十七冶集团有限公司 | Fixing system for beam-side embedded overhanging scaffold |
| CN111910902A (en) * | 2020-08-05 | 2020-11-10 | 中建八局第二建设有限公司 | Construction method of high-altitude double-layer overlong cantilever reinforced concrete structure |
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