CN113863666B - High-altitude section steel cantilever formwork support frame and construction method thereof - Google Patents
High-altitude section steel cantilever formwork support frame and construction method thereof Download PDFInfo
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- CN113863666B CN113863666B CN202111177779.0A CN202111177779A CN113863666B CN 113863666 B CN113863666 B CN 113863666B CN 202111177779 A CN202111177779 A CN 202111177779A CN 113863666 B CN113863666 B CN 113863666B
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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
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/06—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for stairs, steps, cornices, balconies, or other parts corbelled out of the wall
- E04G13/066—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for stairs, steps, cornices, balconies, or other parts corbelled out of the wall for overhangs
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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
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
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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
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
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Abstract
The invention discloses a high-altitude section steel cantilever formwork support frame and a construction method thereof, and the high-altitude section steel cantilever formwork support frame comprises a first beam body, a second beam body, a formwork support mechanism, a support reinforcement mechanism and a support frame body, wherein the formwork support mechanism respectively comprises four groups of I-shaped steel beams, an embedded fixing part, a first lug plate, a first turn buckle, a second lug plate, a second turn buckle, a support table, a connecting piece and a cross beam, the tops of the first beam body and the second beam body are respectively provided with two groups of I-shaped steel beams; according to the invention, through the structural matching of the template supporting mechanism and the supporting and reinforcing mechanism, the template support of each node can be assembled on the ground through the prefabricated structure, and the support structure of each node is integrated, and during the process, the prefabricated triangular supporting seat and the clamping plate can be flexibly matched with the clamping groove and the scissor-type hinge rod, so that the distance between the triangular supporting seats can be adaptively adjusted according to the actually pre-embedded fixing piece on site.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a high-altitude profile steel cantilever formwork support frame and a construction method thereof.
Background
Along with the development of urban construction and the popularization of high-rise buildings, the requirements of building functions and modeling on building structures are higher and higher, the high-rise buildings frequently adopt a high-altitude large-span cantilever structure form, the problem of high-altitude large-span cantilever structure template support also arises, and the design and construction of a roof high-altitude large-cantilever structure template support frame are more and more important.
Current high altitude construction environment generally can set up the support body assistant work personnel construction of encorbelmenting, nevertheless the support body of encorbelmenting assembles when actually installing and assembling, generally assemble at the high altitude scene, and the support body of encorbelmenting is in order to guarantee the safety and stability, the reinforced structure of its demand is more, therefore the on-the-spot equipment degree of difficulty of high altitude is great, increase construction technical personnel's uncertain factor and the complexity and the work degree of difficulty of framework overall arrangement, often can install wire rope and consolidate after setting up the support frame, however the support system structure of the template of encorbelmenting is more, if erect wire rope at every node and consolidate, the use figure of basket of flowers bolt has not only been increased, construction cost demand is improved, still can increase operating personnel's construction flow, reduce the efficiency of assembling of template support frame.
Disclosure of Invention
The invention aims to provide a high-altitude section steel cantilever formwork support frame and a construction method thereof, and aims to solve the related problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the template supporting mechanism comprises four groups of I-shaped steel beams, pre-buried fixing pieces, first lug plates, first turn bolts, second lug plates, second turn bolts, a supporting table, connecting pieces and a supporting frame body, wherein the I-shaped steel beams are respectively provided with two groups of I-shaped steel beams at the tops, the four groups of I-shaped steel beams are respectively provided with the pre-buried fixing pieces fixedly connected with the first beam body and the second beam body at one side and provided with the supporting table at one side, the supporting table is fixedly connected with the supporting frame body, the connecting pieces are sleeved at the middle positions of the four groups of I-shaped steel beams, the cross beams are fixedly connected at one sides of the four groups of connecting pieces close to each other, the two groups of first lug plates are provided, one group of first lug plates are positioned at the middle position of the top of one group of cross beams, and the second turnbuckle is two groups, and two groups of second turnbuckles are fixedly connected with the four groups of second lug plates.
Preferably, support reinforcing mechanism and include triangle supporting seat, joint board, locating rack, joint groove, cut fork articulated arm, outer tube, interior sleeve pipe and auxiliary support board respectively, the triangle supporting seat is four groups, and is two sets of with holding the joint groove has been seted up to the one end that the triangle supporting seat is close to each other, and is two sets of cut fork articulated arm's both ends articulate has the joint board, and is two sets of with holding the both sides rigid coupling that the triangle supporting seat is close to one end each other has interior sleeve pipe, and interior sleeve pipe and outer tube sleeve establish the cooperation, and is two sets of the top rigid coupling of outer tube has auxiliary support board, and is a set of the inboard bottom rigid coupling of triangle supporting seat has the locating rack, and locating rack and support frame body rigid coupling.
Preferably, the bottom of the first beam body and the second beam body is equipped with the reinforcing beam, and the both sides of reinforcing beam respectively with a set of second otic placode and first otic placode rigid coupling, the top of supporting the support body outside is fixed with the reinforcing plate, and reinforcing plate and reinforcing beam rigid coupling, the both ends department of the inside one side of the first beam body and the second beam body is pre-buried to have a location external member, and location external member and triangular support seat rigid coupling, one side at the first beam body and the second beam body top is equipped with the limiting plate, and limiting plate and the mutual adaptation of I-shaped steel roof beam.
Preferably, four groups one side of I-steel roof beam is equipped with the fixed station, and fixed station and brace table rigid coupling, and a set of first turn buckle and two sets of the top and the bottom of second turn buckle all the rigid coupling have wire rope, and wire rope respectively with first otic placode and second otic placode rigid coupling.
Preferably, the top of the four groups of connecting pieces is provided with a positioning piece, and the four groups of connecting pieces are in U-shaped structures and are inserted on the outer side of the I-shaped steel beam.
Preferably, the two triangular supporting seats at the same end are fixedly connected with the I-shaped steel beam and the supporting platform respectively, the two triangular supporting seats at the same end are fixedly connected with diagonal draw bars at the bottoms of the triangular supporting seats, and the diagonal draw bars are fixedly connected with the positioning frame.
Preferably, the two sets of clamping grooves at the same end are symmetrically provided with positioning columns at the ends close to each other, and the two sets of clamping plates at the same end are symmetrically provided with positioning grooves matched with the positioning columns in an inserting manner at the ends far away from each other.
The construction method of the high-altitude profile steel cantilever formwork support frame comprises the following construction steps:
step one; firstly, clamping a prefabricated scissor-type hinge rod and a clamping plate into a clamping groove on the ground for assembling and welding, so that a triangular support seat and the scissor-type hinge rod are integrated, then adjusting the distance between two groups of I-shaped steel beams and the triangular support seat according to an actually pre-embedded fixing piece, so that the triangular support seat horizontally corresponds to the I-shaped steel beams under the movable folding of the scissor-type hinge rod, and the triangular support seat and the I-shaped steel beams are assembled and spliced and are welded into a whole through a cross beam;
step two; when the support frame is assembled, the two groups of integrated I-shaped steel beams and the triangular support seat can be clamped into the pre-buried fixing piece for positioning, and the triangular support seat is attached and fixed with the wall edges of the first beam body and the second beam body, so that the support frame body can be erected above the triangular support seat and the I-shaped steel beams;
step three; after the support frame body is erected, one group of first turn buckle bolts can be fixedly connected with the two groups of first lug plates for reinforcement, and then two groups of second turn buckle bolts are used for being jointed and reinforced with the four groups of second lug plates, so that the support frame body is connected with the first beam body and the second beam body to form the template support frame body.
Compared with the prior art, the invention provides a high-altitude section steel cantilever formwork support frame, which has the following beneficial effects:
1. the template support of each node can be assembled on the ground through the prefabricated structure through the structural matching of the template support mechanism and the support reinforcing mechanism, the support structure of each node is integrated, the prefabricated triangular support seat and the clamping plate can be used for being matched with the clamping groove and the scissor-type hinge rod in a telescopic mode during the process, the distance between the triangular support seats can be adjusted in a self-adaptive mode conveniently according to the embedded fixing piece which is actually embedded in the field, so that the triangular support seat and the I-shaped steel beam are assembled in advance, the integrated node structure serves as a support system at the moment, the working difficulty of high-altitude cantilever template support assembly is reduced, the high-altitude assembly work efficiency of construction technicians is improved, and in addition, the first lug plate is matched with the inner reinforcing structure of the first turnbuckle and the outer reinforcing structure of the second lug plate and the second turnbuckle, the I-shaped steel beam overall structure's of great improvement integration node steadiness and load to the cooperation supports the reinforcement support of strengthening mechanism to integration node below, further strengthens stability and security of this structure in high altitude environment operation.
2. The invention utilizes the splicing combination of the template supporting mechanism and the supporting and reinforcing mechanism to combine the single group of nodes of the two brackets into a whole, thereby promoting the high-altitude assembly efficiency of the bracket structure to be improved, simultaneously utilizes the cross beam to connect the two brackets, and arranges a group of first lug plates and first turn-buckle bolts on the basis of the connecting structure to carry out turn-buckle reinforcement, thereby reducing the use requirement of the reinforcing structure of each node, and is matched with the erection connection of two external groups of second turn-buckle bolts and second lug plates, thereby reasonably utilizing the high-quality reinforcing system structure, reducing the investment of materials and labor cost, reducing the erection amount of the reinforcing structure while maintaining the stability of the reinforcing system, further improving the working efficiency of constructors, not only carrying out flexible adjustment of field assembly operation through the distance movement between the two groups of triangular supporting seats, meanwhile, after the triangular support seat is actually assembled with the I-shaped steel beam in a positioning mode, the triangular support seat can be matched with the I-shaped steel beam, the triangular support seat and the auxiliary support plate to be erected and attached, and the overall tightness and supporting force of the structure are improved.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a front cross-sectional view of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 in accordance with the present invention;
FIG. 4 is a top view of the triangular support base of the present invention;
FIG. 5 is a top sectional view of the triangular support base of the present invention;
FIG. 6 is a top view of the I-beam of the present invention;
FIG. 7 is a perspective view of the triangular support base of the present invention.
In the figure: 1. a first beam body; 2. a second beam body; 3. a formwork support mechanism; 31. an I-beam; 32. pre-burying a fixing piece; 33. a first ear plate; 34. a first turn buckle; 35. a second ear panel; 36. a second turnbuckle; 37. a support table; 38. a connecting member; 39. a cross beam; 4. a supporting and reinforcing mechanism; 41. a triangular support seat; 42. a clamping and connecting plate; 43. a positioning frame; 44. a clamping groove; 45. a scissor-fork type hinge rod; 46. an outer sleeve; 47. an inner sleeve; 48. an auxiliary support plate; 5. and a support frame body.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides a technical solution: a high-altitude steel cantilever formwork support frame comprises a first beam body 1, a second beam body 2, a formwork support mechanism 3, a support reinforcing mechanism 4 and a support frame body 5, wherein the formwork support mechanism 3 respectively comprises four groups of I-shaped steel beams 31, pre-embedded fixing pieces 32, first lug plates 33, first turn-buckle bolts 34, second lug plates 35, second turn-buckle bolts 36, support tables 37, connecting pieces 38 and cross beams 39, the I-shaped steel beams 31 are respectively provided with two groups of I-shaped steel beams 31 at the tops of the first beam body 1 and the second beam body 2, the pre-embedded fixing pieces 32 fixedly connected with the first beam body 1 and the second beam body 2 are arranged at one side of the four groups of I-shaped steel beams 31, the support tables 37 are fixedly connected with the support frame body 5, the connecting pieces 38 are sleeved at the middle positions of the four groups of I-shaped steel beams 31, the cross beams 39 are fixedly connected at the sides of the four groups of connecting pieces 38 close to each other, the first lug plates 33 are two groups, one group of first lug plates 33 are positioned in the middle of the top of one group of cross beams 39, the other group of first lug plates 33 are positioned on one side of the bottom of the second beam body 2, the first turn buckle 34 is fixedly connected with the two groups of first lug plates 33, the second lug plates 35 are four groups, the two groups of second lug plates 35 are positioned on one side of the top of the I-shaped steel beam 31, the other two groups of second lug plates 35 are positioned on the bottom of one side of the second beam body 2, the second turn buckle 36 is two groups, and the two groups of second turn buckle 36 are fixedly connected with the four groups of second lug plates 35.
As a preferable embodiment of the present embodiment: support reinforcing mechanism 4 and include triangle supporting seat 41 respectively, clamping plate 42, locating rack 43, joint groove 44, cut fork articulated arm 45, outer tube 46, interior sleeve pipe 47 and auxiliary support plate 48, triangle supporting seat 41 is four groups, joint groove 44 has been seted up to the one end that two sets of triangle supporting seats 41 of homonymy are close to each other, two sets of both ends of cutting fork articulated arm 45 articulate there is clamping plate 42, the both sides rigid coupling that two sets of triangle supporting seats 41 of homonymy are close to one end each other has interior sleeve pipe 47, and interior sleeve pipe 47 and outer tube 46 cover establish the cooperation, the top rigid coupling of two sets of outer tubes 46 has auxiliary support plate 48, the inboard bottom rigid coupling of a set of triangle supporting seat 41 has locating rack 43, and locating rack 43 and the 5 rigid couplings of support frame body.
As a preferable embodiment of the present embodiment: the bottom of the first beam body 1 and the bottom of the second beam body 2 are provided with reinforcing beams, two sides of each reinforcing beam are fixedly connected with a group of second lug plates 35 and first lug plates 33 respectively, the top of the outer side of the support frame body 5 is fixedly provided with a reinforcing plate, the reinforcing plates are fixedly connected with the reinforcing beams, positioning external members are pre-embedded at two ends of one side of the inner portions of the first beam body 1 and the second beam body 2 and fixedly connected with a triangular support seat 41, the triangular support seat 41 is conveniently clamped at the positioning external members of the first beam body 1 and the second beam body 2 corresponding to each other, one side of the top portions of the first beam body 1 and the second beam body 2 is provided with a limiting plate, the limiting plate is mutually matched with the I-shaped steel beam 31, and the accuracy of positioning of the I-shaped steel beam 31 above the first beam body 1 and the second beam body 2 is improved.
As a preferable embodiment of the present embodiment: one side of four groups of I-shaped steel beams 31 is provided with a fixed station which is fixedly connected with a supporting table 37, the top and the bottom of one group of first turn bolts 34 and two groups of second turn bolts 36 are fixedly connected with steel wire ropes, the steel wire ropes are fixedly connected with a first lug plate 33 and a second lug plate 35 respectively, structural connection can be carried out between the steel wire ropes and the first turn bolts 34 and the second turn bolts 36, connection points of an inner reinforcing system and an outer reinforcing system of the structure are increased, and the integral stability of the structure is improved.
As a preferable embodiment of the present embodiment: the positioning members are arranged at the tops of the four groups of connecting members 38, the four groups of connecting members 38 are in a U-shaped structure and penetrate through the outer side of the I-shaped steel beam 31, so that the connecting members 38 can slide and move on the outer side of the I-shaped steel beam 31, adjustment can be conveniently carried out according to actual positioning positions, and the fixing adjustability of the positioning members and the connecting members 38 is improved.
As a preferable embodiment of the present embodiment: two sets of triangle supporting seats 41 of the same end respectively with I-shaped girder 31 and supporting bench 37 rigid coupling, the bottom rigid coupling of two sets of triangle supporting seats 41 of the same end has oblique pull rod, and oblique pull rod and locating rack 43 rigid coupling, improves the linking nature of triangle supporting seat 41 and locating rack 43 and support frame 5 structure, strengthens the holistic compactness and the steadiness of this structure.
As a preferable embodiment of the present embodiment: the one end symmetry that is close to each other with two sets of joint grooves 44 in end is equipped with the reference column, and the constant head tank that closes the adaptation is inserted with the reference column to the one end symmetry of keeping away from each other with two sets of joint board 42 in end, and joint groove 44 and joint board 42 of being convenient for carry out butt joint work, make joint board 42 better with joint groove 44 welded steadiness, increase part connection structure's fixed effect.
The construction method of the high-altitude profile steel cantilever formwork support frame comprises the following construction steps:
step one; firstly, clamping a prefabricated scissor-type hinge rod 45 and a clamping plate 42 into a clamping groove 44 on the ground for assembling and welding, so that a triangular support seat 41 and the scissor-type hinge rod 45 are integrated, then adjusting the distance between two groups of I-shaped steel beams 31 and the triangular support seat 41 according to an actually pre-embedded fixing piece 32, so that the triangular support seat 41 horizontally corresponds to the I-shaped steel beams 31 under the movable folding of the scissor-type hinge rod 45, and the triangular support seat 41 and the I-shaped steel beams 31 are assembled and spliced, while the two groups of I-shaped steel beams 31 are welded into a whole through a cross beam 39;
step two; when the support frame is assembled, the two integrated I-shaped steel beams 31 and the triangular support seat 41 can be clamped into the pre-buried fixing piece 32 for positioning, and the triangular support seat 41 is attached and fixed with the wall edges of the first beam body 1 and the second beam body 2, so that the support frame body 5 can be erected above the triangular support seat 41 and the I-shaped steel beams 31;
step three; after the support frame 5 is erected, a set of first turn-buckle bolts 34 may be fixedly fastened to the two sets of first ear plates 33, and then two sets of second turn-buckle bolts 36 may be used to engage and fasten the four sets of second ear plates 35, so that the support frame 5 is connected to the first beam 1 and the second beam 2 to form a formwork support frame.
In embodiment 1, as shown in fig. 1 to 3, when the support frame 5 is erected inside the support table 37, the support frame 5 with a single node can be stably placed above the first beam 1 under the system of the cantilever structure, and the upper side of the support frame 5 extends toward the second beam 2, and at this time, the positioning frame 43 erected below the triangular support base 41 can be used as a connecting structure, so that the positioning frame 43 and the support frame 5 are fixedly connected, and the stability of the connecting system and the integrated structure between the structures is further improved.
Example 2, as shown in fig. 4 to 5, when two sets of triangular supporting seats 41 are assembled into a prefabricated structure through scissor-type hinge rods 45 and snap plates 42, the guiding and positioning can be carried out through the positioning column of the clamping groove 44 and the positioning groove of the clamping plate 42, the accuracy of clamping the clamping plate 42 into the inner side of the clamping groove 44 is increased, the welding accuracy is improved, the movable adjustment between the scissor-type hinge rod 45 and the clamping plate 42 is more stable, the inner sleeve 47 is used as a guiding system in the telescopic movement in the outer sleeve 46, so that the triangular supporting seat 41 can be adjusted in distance under the positioning of the clamping plate 42 and the clamping groove 44, and the auxiliary supporting plate 48 and the triangular supporting seats 41 are in the same horizontal plane, so that the two groups of triangular supporting seats 41 and the auxiliary supporting plate 48 are in contact with the lower part of the I-shaped steel beam 31 together in a fit manner, and the stable reinforcing support is realized.
The working principle is as follows: when the structure is assembled, firstly, the scissor-type hinge rod 45 and the clamping plate 42 are clamped into the clamping groove 44 for positioning, and the clamping positioning position of the clamping plate 42 and the clamping groove 44 is welded and fixed, at the moment, the distance between the two groups of triangular supporting seats 41 can be adjusted through movable folding of the scissor-type hinge rod 45 and telescopic guiding of the outer sleeve 46 and the inner sleeve 47, so that the clamping plate 42 actually preset in a measuring field is adjusted, the triangular supporting seats 41 are attached to the lower part of the I-shaped steel beam 31 for splicing and fixing, then the two groups of I-shaped steel beams 31 are connected through the connecting piece 38 and the cross beam 39, so that the two groups of I-shaped steel beams 31 and the triangular supporting seats 41 are combined into a whole as a node structure, and at the moment, the integrated structure can be assembled in high altitude;
secondly, when the i-shaped steel beam 31 and the embedded fixing piece 32 are assembled and positioned, the integrated cross beam 39 and the triangular supporting seat 41 can be connected and reinforced with the first beam body 1 or the second beam body 2, so that the overall fixing effect of the single-group structure is stably ensured, and at the moment, the support frame body 5 and the supporting platform 37 can be fixed above the i-shaped steel beam 31 and the triangular supporting seat 41, so that a template support system is formed;
finally, during the erection of the support frame 5, two sets of second turn-buckle bolts 36 can be connected at the second ear plate 35 to make the second turn-buckle bolts 36 obliquely and fixedly connect the i-beam 31 above the first beam 1 and the second beam 2 to form an external reinforcement system, and a single set of first turn-buckle bolts 34 and first ear plates 33 are fixed at the beam 39 of the pre-engagement structure to make the first turn-buckle bolts 34 obliquely and fixedly connect the i-beam 31 and the second beam 2 to form an internal reinforcement system, so that the internal and external structures of the integrated i-beam 31 and the triangular support base 41 can be stably installed and positioned, thereby improving the working efficiency and safety of the structural assembly operation.
Finally, it should be noted that the above-mentioned contents are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, and that the simple modifications or equivalent substitutions of the technical solutions of the present invention by those of ordinary skill in the art can be made without departing from the spirit and scope of the technical solutions of the present invention.
Claims (7)
1. High altitude shaped steel formwork support frame of encorbelmenting, including first roof beam body (1), second roof beam body (2), template supporting mechanism (3), support strengthening mechanism (4) and support body (5), its characterized in that: the template supporting mechanism (3) comprises I-shaped steel beams (31), pre-buried fixing pieces (32), first ear plates (33), first turn bolts (34), second ear plates (35), second turn bolts (36), supporting tables (37), connecting pieces (38) and cross beams (39) respectively, the I-shaped steel beams (31) are four groups, the tops of the first beam body (1) and the second beam body (2) are respectively provided with two groups of I-shaped steel beams (31), one side of each I-shaped steel beam (31) of each group is provided with the pre-buried fixing pieces (32) fixedly connected with the first beam body (1) and the second beam body (2), one side of the top of each I-shaped steel beam (31) of each group is fixedly connected with the supporting tables (37), the supporting tables (37) are fixedly connected with the supporting frame body (5), the middle positions of the I-shaped steel beams (31) of each group are sleeved with the connecting pieces (38), and one side of each other close to the connecting pieces (38) of each group is provided with the cross beam (39), the first lug plates (33) are divided into two groups, one group of the first lug plates (33) is positioned in the middle position of the top of one group of the cross beam (39) above the first beam body (1), the other group of the first lug plates (33) is positioned on one side of the bottom of the second beam body (2), the first basket bolts (34) are fixedly connected with the two groups of the first lug plates (33), the second lug plates (35) are divided into four groups, the two groups of the second lug plates (35) are positioned on one side of the top of the I-shaped steel beam (31) above the first beam body (1), the other two groups of the second lug plates (35) are positioned on the bottom of one side of the second beam body (2), the second basket bolts (36) are divided into two groups, and the two groups of the second basket bolts (36) are fixedly connected with the four groups of the second lug plates (35);
the supporting and reinforcing mechanism (4) respectively comprises a triangular supporting seat (41), a clamping plate (42), a positioning frame (43), a clamping groove (44), a scissor-type hinge rod (45), an outer sleeve (46), an inner sleeve (47) and an auxiliary supporting plate (48), the triangular supporting seats (41) are four groups, one end of each of two groups of triangular supporting seats (41) at the same end, which is close to each other, is provided with a clamping groove (44), two ends of each of two groups of scissor-type hinge rods (45) are hinged with clamping plates (42), two sides of one end of each of two groups of triangular supporting seats (41) at the same end, which is close to each other, are fixedly connected with an inner sleeve (47), and interior sleeve pipe (47) establishes the cooperation with outer tube (46) cover, and is two sets of the top rigid coupling of outer tube (46) has auxiliary support board (48), and is a set of the inboard bottom rigid coupling of triangle supporting seat (41) has locating rack (43), and locating rack (43) and support frame body (5) rigid coupling.
2. The high-altitude steel overhanging formwork support frame as claimed in claim 1, is characterized in that: the bottom of the first beam body (1) and the second beam body (2) is provided with a reinforcing beam, the top of the outer side of the support frame body (5) is fixed with a reinforcing plate, the reinforcing plate is fixedly connected with the reinforcing beam, positioning external members are pre-embedded at the two ends of one side of the inner parts of the first beam body (1) and the second beam body (2), the positioning external members are fixedly connected with a triangular supporting seat (41), one side of the top parts of the first beam body (1) and the second beam body (2) is provided with a limiting plate, and the limiting plate is matched with the I-shaped steel beam (31) mutually.
3. The high-altitude steel overhanging formwork support frame as claimed in claim 1, is characterized in that: four sets of one side of I-steel roof beam (31) is equipped with the fixed station, and fixed station and brace table (37) rigid coupling, and a set of first turn buckle (34) and two sets of the top and the bottom of second turn buckle (36) all the rigid coupling have wire rope, and wire rope respectively with first otic placode (33) and second otic placode (35) rigid coupling.
4. The high-altitude steel overhanging formwork support frame as claimed in claim 1, is characterized in that: positioning pieces are arranged at the tops of the four groups of connecting pieces (38), and the four groups of connecting pieces (38) are in U-shaped structures and are inserted on the outer sides of the I-shaped steel beams (31).
5. The high-altitude steel overhanging formwork support frame as claimed in claim 1, is characterized in that: the two triangular supporting seats (41) at the same end are fixedly connected with the I-shaped steel beam (31) and the supporting platform (37) respectively, the two triangular supporting seats (41) at the same end are fixedly connected with diagonal draw bars at the bottoms of the triangular supporting seats (41), and the diagonal draw bars are fixedly connected with a positioning frame (43).
6. The high-altitude steel overhanging formwork support frame as claimed in claim 1, is characterized in that: and positioning columns are symmetrically arranged at the ends, close to each other, of the two clamping grooves (44) at the same end, and positioning grooves matched with the positioning columns in an inserting mode are symmetrically arranged at the ends, far away from each other, of the two clamping plates (42) at the same end.
7. The construction method of the high-altitude steel cantilever formwork support frame comprises the steps as follows:
step one; firstly, clamping a prefabricated scissor type hinge rod (45) and a clamping plate (42) into a clamping groove (44) on the ground for assembling and welding, so that a triangular support seat (41) and the scissor type hinge rod (45) are integrated, then adjusting the distance between two groups of I-shaped steel beams (31) and the triangular support seat (41) according to an actually pre-embedded fixing piece (32), so that the triangular support seat (41) horizontally corresponds to the I-shaped steel beams (31) under the movable folding of the scissor type hinge rod (45), so that the triangular support seat (41) and the I-shaped steel beams (31) are assembled and spliced, and the two groups of I-shaped steel beams (31) are welded into a whole through a cross beam (39);
step two; when the support frame is assembled, the two integrated I-shaped steel beams (31) and the triangular support seat (41) are clamped into the pre-buried fixing piece (32) for positioning, the triangular support seat (41) is attached and fixed to the wall edges of the first beam body (1) and the second beam body (2), and at the moment, the support frame body (5) can be erected above the triangular support seat (41) and the I-shaped steel beams (31);
step three; after the support frame body (5) is erected, a group of first turn bolts (34) are connected to two groups of first lug plates (33) for fixing and reinforcing, and then two groups of second turn bolts (36) are used for jointing and reinforcing with four groups of second lug plates (35), so that the support frame body (5) is connected with the first beam body (1) and the second beam body (2) to form the formwork support frame body.
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| CN109629810B (en) * | 2018-12-29 | 2021-02-09 | 浙江恒鸿建设有限公司 | Closed type overhanging scaffold and construction method |
| CN210713742U (en) * | 2019-09-06 | 2020-06-09 | 浙江旷厦建设有限公司 | Cantilever beam structure |
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