CN213477596U

CN213477596U - Large-span high suspended structure formwork supporting platform connecting structure

Info

Publication number: CN213477596U
Application number: CN202021944368.0U
Authority: CN
Inventors: 王婧媛; 高宇; 李兆一
Original assignee: China Construction Second Engineering Bureau Co Ltd
Current assignee: China Construction Second Engineering Bureau Co Ltd
Priority date: 2020-09-08
Filing date: 2020-09-08
Publication date: 2021-06-18
Anticipated expiration: 2030-09-08

Abstract

The utility model discloses a large-span high-suspension structure formwork platform connecting structure, which comprises a scaffold connected above the top of a second roof, a supporting system connected below the scaffold, a cross brace connected on the scaffold and a pulling piece connected between the supporting system and the top of the first roof; the supporting system comprises a main beam which is connected to the top of the second roof and corresponds to the first roof in an overhanging roof top, an inclined supporting piece which is connected between the overhanging end of the main beam and the top of the third roof, and an auxiliary supporting piece which is connected between the overhanging end of the main beam and the shear wall of the elevator shaft; the utility model provides a lower connection foundation for the formwork support through the arrangement of the scaffold; by the arrangement of the supporting system, good stress of the supporting system is ensured, and occupation of field space and a large amount of construction are reduced; the main beam can be effectively positioned and fixed through the arrangement of the cushion block, the hoop and the embedded plate; through the arrangement of the auxiliary supporting piece, the supporting height can be adjusted and the operation on the construction site can be facilitated.

Description

Large-span high suspended structure formwork supporting platform connecting structure

Technical Field

The utility model belongs to the building construction field, in particular to high suspended structure formwork platform connection structure of large-span.

Background

In the construction, can meet often that building roof structure is the setting of encorbelmenting, generally encorbelmenting the structure and can carry out the setting up of template platform through full hall scaffold, but this kind of method not only needs a large amount of personnel construction, still need occupy the construction place, and also has the requirement to the headroom in place, and also need further strengthen to its safeguard measure of large-span high unsettled structure. The template is erected through the overhanging platform, but the safety design of the supporting structure, the overall comprehensive stress and the like are designed pertinently for the connection between the supporting frame and the building.

SUMMERY OF THE UTILITY MODEL

The utility model provides a high suspended structure formwork platform connection structure of large-span for solve the convenient installation, the security design of the formwork platform of the high suspended structure of large-span and wholly synthesize technical problem such as atress.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a large-span high-suspension structure formwork platform connecting structure comprises a scaffold connected above the top of a second roof, a supporting system connected below the scaffold, a cross brace connected on the scaffold and a pulling piece connected between the supporting system and the top of the first roof;

the top of the scaffold is connected with a template, and the outer side of the scaffold is provided with a side rod, a transverse handrail and a protective net;

the supporting system comprises a main beam which is connected to the top of the second roof and corresponds to the top of the first roof in a cantilever manner, a hoop which is connected between the top of the second roof and the main beam, an inclined strut member which is connected between the cantilever end of the main beam and the top of the third roof, and an auxiliary strut member which is connected between the cantilever end of the main beam and a shear wall of the elevator shaft; the first roof top, the second roof top and the third roof top are sequentially arranged from top to bottom, and the first roof top is an overhanging roof top.

Furthermore, the main beam and the second roof top are detachably connected through a hoop, and a cushion block is further connected between the main beam and the second roof top; the cushion block is suitable for mounting and adjusting the height difference of the main beam.

Further, still include to connect and set up at the second roofing top surface in the interval and connect the pre-buried board between horizontal staple bolt, and still be connected with the strengthening rib between pre-buried board and the interior reinforcing bar of second roofing top structure.

Furthermore, the auxiliary supporting piece is a rod piece, the top of the auxiliary supporting piece is connected to the lower side of the main beam through a pad beam, and the bottom of the auxiliary supporting piece is detachably connected with the shear wall of the elevator shaft through a fixing plate.

Furthermore, the diagonal bracing piece comprises an outer diagonal bracing connected between the main beam and the top of the third roof, an inner diagonal bracing connected between the outer diagonal bracing and the anchoring end of the main beam, and diagonal connecting pieces connected between the outer diagonal bracing and the inner diagonal bracing and between the inner diagonal bracing and the building wall respectively.

Further, the height of the protective net is at least 1.2m, and the protective net is fixedly connected through a protective framework; the protection bone comprises a transverse framework and a vertical framework.

Furthermore, the scaffold comprises upright posts arranged at intervals, cross rods vertically connected between the upright posts, adjusting pieces connected between the upright posts and the top of the first roof, side rods arranged on the outermost side and holding rods vertically connected between the side rods; the outside of the side rod and the holding rod is connected with a protective net.

Furthermore, the scaffold is arranged between the first roof top and the machine room roof which is arranged above the first roof top partially, and the side rods of the scaffold are arranged vertically in a full-length mode.

Furthermore, the device also comprises a bottom connecting rod vertically connected below the main beam, and the height of the bottom connecting rod is adapted to the on-site height difference of the main beam.

Further, draw the piece to contain and connect in the cable and the pre-buried mounting at first roofing top lower surface of encorbelmenting between the end of encorbelmenting of first roofing top and girder, the cable can be dismantled with the mounting and be connected.

The beneficial effects of the utility model are embodied in:

1) the utility model provides a lower connection foundation for the formwork by arranging the scaffold, and the side rods and the holding rods of the scaffold are beneficial to safe construction and provide a connectable foundation for the protective net outside;

2) the utility model provides a lower bearing foundation for the installation of the scaffold through the arrangement of the supporting system, and the supporting system is connected with the building below the cantilever structure, thereby ensuring the good stress of the supporting system on one hand and reducing the occupation of the construction site space and a large amount of construction on the other hand;

3) the utility model can effectively position and fix the main beam in the supporting system by arranging the cushion block, the hoop and the pre-embedded plate, and further ensure the reasonable stress of the whole supporting system;

4) the utility model further ensures the stress of the whole supporting system through the arrangement of the auxiliary supporting piece, and the supporting height of the auxiliary supporting piece can be adjusted on the construction site through the pad beam, thereby being beneficial to the operation on the construction site;

in addition, the utility model can effectively bear the force of the whole body and ensure the stability and the adjustability in the construction process through the combined arrangement of the pulling piece, the cross brace and the bottom connecting rod; additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention; the primary objects and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description.

Drawings

FIG. 1 is a side view of a formwork platform connecting structure for a large-span high-suspension structure;

FIG. 2 is a construction front view of a formwork supporting platform connecting structure of a large-span high-suspension structure;

FIG. 3 is a side view of the scaffolding and support system construction connection;

FIG. 4 is a schematic representation of the scaffold and support system construction;

FIG. 5 is an elevation view of a scaffolding and support system construction connection;

FIG. 6 is a front section of the scaffolding and support system construction connection;

FIG. 7 is a schematic view of a support system connection configuration;

FIG. 8 is a schematic view of the connection of a support system and a protective net;

fig. 9 is a schematic view of a protective net structure;

FIG. 10 is a schematic view of the diagonal stay connection;

FIG. 11 is a top view of the diagonal stay connection;

FIG. 12 is a cross-sectional view of the diagonal stay connection;

FIG. 13 is a schematic view of the diagonal brace coupled to a third roof top;

FIG. 14 is a schematic view of the attachment of the embedment plate to a third roof top;

FIG. 15 is a schematic view of the connection of the embedment plate with the reinforcing bars.

Reference numerals: 1-a first roof top, 2-a second roof top, 3-a third roof top, 4-a machine room roof, 5-an elevator shaft shear wall, 6-a scaffold, 61-a vertical rod, 62-a cross rod, 63-an adjusting part, 64-a side rod, 65-a supporting rod, 7-a cross brace, 8-a pulling part, 81-a pulling cable, 82-a fixing part, 9-a supporting system, 91-a main beam, 92-a hoop, 93-a cushion block, 94-a diagonal bracing part, 941-an outer diagonal bracing, 942-an inner diagonal bracing, 943-a diagonal connecting part, 95-an auxiliary supporting part, 96-a cushion beam, 97-a fixed plate, 98-a pre-embedded plate, 99-a reinforcing rib, 10-a protective net, 11-a protective framework and 12-a bottom connecting rod.

Detailed Description

Taking a certain concrete frame structure as an example, the project has a suspended beam slab structure, the top plates of the garages around the building seat are constructed and finished, the strength requirement is met, and the formwork supporting platform manufacturing and hoisting field is wide. The periphery of the building seat is adjacent to the three steel bar processing sheds, the suspended beam plate is positioned in the slewing radius of the tower crane, and the component allocation and transportation can be realized without a rotating tower.

As shown in fig. 1 to 9, a formwork platform connection structure of a large-span high-suspension structure includes a scaffold 6 connected to the upper part of a second roof top 2, a support system 9 connected to the lower part of the scaffold 6, a cross brace 7 connected to the scaffold 6, and a pulling member 8 connected between the support system 9 and the first roof top 1; the top of the scaffold 6 is connected with a template, and the outer side of the scaffold 6 is provided with a side rod 64, a transverse handrail and a protective net 10. The height of the protective net 10 is at least 1.2m, and the protective net 10 is connected and fixed through a protective framework 11; the protective framework comprises a framework consisting of a transverse framework and a vertical framework.

In this embodiment, the scaffold 6 comprises uprights 61 arranged at intervals, crossbars 62 vertically connected between the uprights 61, adjusting members 63 connected between the uprights 61 and the first roof top 1, side bars 64 arranged on the outermost side, and handrails 65 vertically connected between the side bars 64; the protective screening 10 is connected to the outer sides of the side rods 64 and the holding rods 65. Scaffold 6 still sets up between first roofing top 1 and the local computer lab roof 4 that sets up in first roofing top 1 top, and scaffold 6's limit pole 64 is at vertical overlength setting. Wherein, each rod piece in the scaffold 6 is made of steel pipes.

The step distance of the cross bar 62 of the scaffold 6 in the embodiment is not more than 1500 mm; the upright posts 61 of the scaffold 6 are vertically arranged, and the longitudinal and transverse spacing is 900 multiplied by 900; the sweeping rods of the scaffold 6 are arranged at the root part of the scaffold for 200mm, the cross braces 7 are arranged at the outer periphery and the inner part of the scaffold body for every 5-8m in the transverse and longitudinal directions, continuous vertical cross braces 7 are arranged from bottom to top, and the width of each cross brace 7 is 5-8 m.

In this embodiment, the supporting system 9 includes a main beam 91 connected to the second roof top 2 and forming an overhanging roof top corresponding to the first roof, a hoop 92 connected between the second roof top 2 and the main beam 91, an inclined support 94 connected between an overhanging end of the main beam 91 and the third roof top 3, and an auxiliary support 95 connected between an overhanging end of the main beam 91 and the elevator shaft shear wall 5; the first roof top 1, the second roof top 2 and the third roof top 3 are sequentially arranged from top to bottom, and the first roof top 1 is an overhanging roof top. The main beam 91 is detachably connected with the second roof top 2 through a hoop 92, and a cushion block 93 is also connected between the main beam 91 and the second roof top 2; the cushion block 93 is adapted to the installation and adjustment height difference of the main beam 91.

The girder 91 is made of I-steel, I-steel net racks are arranged on the bottom plate of the roof layer in an overhanging mode of a plurality of rows of girders 91 to serve as bottom supports of the scaffold 6 body, the girder 91 is made of 18# I-steel, the length is 7.1m, and the distance is not more than 0.9 m; main beams 91 are connected through secondary beams, the secondary beams are made of 10# I-steel, the length of the secondary beams is 11.02m, and the distance between the secondary beams is not more than 1.2 m. The diagonal support pieces 94 are arranged at a distance of 3.2m from the inner anchoring point, the diagonal support pieces 94 are made of 16# I-shaped steel, the vertical height is 3.1m, one end of each diagonal support piece is in full-welding or bolt connection with the main beam 91, the other end of each diagonal support piece is in full-welding connection with the ear plate of the reserved plate of the lower-layer building, and in addition, a 12# transverse connection I-shaped steel is welded between every two adjacent diagonal support pieces 94 to enhance the overall stability of the support. The hard protection springboard is fully paved and fixed on the I-shaped steel net frame with the overhanging girder 91, a single-layer protection frame with full layer height is arranged at the end part of the I-shaped steel, and a supporting rod 65 is arranged at the position 1.2m away from the protection frame.

In this embodiment, the lower portion of the main beam 91 is further vertically bolted with a bottom connecting rod 12, the bottom connecting rod 12 is made of an i-steel member, and the height of the bottom connecting rod 12 is adapted to the height difference of the main beam 91 in situ.

In this embodiment, draw 8 to contain and connect in the cable 81 that first roofing top 1 and girder 91 between the end of encorbelmenting and pre-buried at the mounting 82 of first roofing top 1 lower surface, cable 81 and mounting 82 can dismantle and be connected. The stay 81 includes a main and an auxiliary wire rope, and the fixing member 82 includes a hanging ring and an anchoring bar. The diameter of the engineering lifting ring is 20mm, and the model of the steel bar is first-grade steel; the anchoring steel bar is up to 30d in length. The hoisting ring anchoring position is pre-embedded on the structural beam in advance. The hoisting rings of the main and auxiliary steel wire ropes should be separately arranged, and the two steel wire ropes should not share one hoisting ring. The vertical section part of the hoisting ring anchored in the beam is more than or equal to 450mm, the setting of a bent anchor cannot be met, and the length of the anchoring section is 300 mm. The included angle between the inner rope hanging ring and the outer rope hanging ring is 10-15 degrees.

In this embodiment, the auxiliary supporting member 95 is a steel rod member, the top of the auxiliary supporting member 95 is connected to the lower side of the main beam 91 through a pad beam 96, and the bottom of the auxiliary supporting member 95 is detachably connected to the shear wall 5 of the elevator shaft through a fixed steel plate. The auxiliary support 95 is made of original aluminum die steel rods with a longitudinal spacing of 600 mm.

In this embodiment, after the main beam 91 is erected, a Φ 25 steel bar is welded at a corresponding position of each vertical rod 61, the height is 200mm, and when the vertical rod 61 is placed, the vertical rod 61 is sleeved on the steel bar to prevent the vertical rod 61 from deviating.

When the template is installed, the template is reinforced by adopting a 13mm thick wood template, a 40 multiplied by 80 wood square back edge and a phi 48 multiplied by 2.8 steel pipe. The back ribs are made of 40x80 battens and are longitudinally arranged, and the distance is not more than 200 mm; the main ridge is made of double steel pipes; the cross bar 62 is made of steel pipe.

The diagonal support member 94 includes an outer diagonal support 941 connected between the main beam 91 and the third roof top 3, an inner diagonal support 942 connected between the outer diagonal support 941 and the anchoring end of the main beam 91, and a diagonal connection member 943 connected between the outer diagonal support 941 and the inner diagonal support 942 and the wall of the building, respectively. As shown in fig. 10 to 15, the outer brace 941 is connected to the third roof top 3 through the embedded plate 98 and the anchor ear 92.

In this embodiment, the embedded plate 98 is connected to the upper surface of the second roof top 2 at intervals and connected between the transverse hoops 92, and a reinforcing rib 99 is further connected between the embedded plate 98 and the reinforcing steel bars in the second roof top 2 structure. The embedded plate 98 is a 0.4 × 0.6m steel plate, welded to the reinforcing rib 99, and cast together with the main body concrete to form a stable structure. M16U type rings and a steel plate with the thickness of 10mm are fixed by nuts to prevent the cross beam from laterally moving and toppling. In the embodiment, the first anchor ring anchoring point is arranged on the flower bed beam, the anchoring length is 1m, at least 3 anchor rings are arranged on each overhanging I-beam, the distance between the first anchor ring and the beam edge is 100mm, the distance between the third anchor ring and the end part is 200mm, and the distance between the second anchor ring and the third anchor ring is 200 mm. The 10mm thick embedded steel plate combines 20 # round steel combination anchors, strengthens the anchor through reserving phi 18 reinforcing bars in the anchor point position, and the tensile reinforcement bar length of drawing is 1m, and with the ligature of floor lower floor's reinforcing bar.

During construction, firstly, scheme design and bottom crossing are carried out, then anchoring devices are placed in place, embedded parts are installed, then a supporting system 9 and a scaffold 6 are processed, then line is set at a supporting position, peripheral wall column concrete is poured, a climbing frame is dismantled, then the supporting system 9 and the scaffold 6 are hoisted on site, then the supporting system 9 and the scaffold 6 are fixed and accepted, and then the pulling parts 8 are installed; and carrying out load test and deformation monitoring in real time in the process, erecting an upper frame body and a top plate template after the upper frame body is qualified, finally carrying out overhanging structure concrete pouring and process monitoring, and then dismantling the formwork supporting platform.

The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be considered by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention.

Claims

1. A large-span high-suspension structure formwork platform connecting structure is characterized in that a scaffold (6) connected above a second roof top (2), a supporting system (9) connected below the scaffold (6), a cross brace (7) connected on the scaffold (6) and a pulling piece (8) connected between the supporting system (9) and the first roof top (1);

the top of the scaffold (6) is connected with a template, and the outer side of the scaffold (6) is provided with a side rod (64), a transverse handrail and a protective net (10);

the supporting system (9) comprises a main beam (91) which is connected to the second roof top (2) and is in an overhanging roof top corresponding to the first roof, a hoop (92) which is connected between the second roof top (2) and the main beam (91), an inclined strut member (94) which is connected between the overhanging end of the main beam (91) and the third roof top (3), and an auxiliary strut member (95) which is connected between the overhanging end of the main beam (91) and the elevator shaft shear wall (5); the first roof top (1), the second roof top (2) and the third roof top (3) are sequentially arranged from top to bottom, and the first roof top (1) is an overhanging roof top.

2. The large-span high-suspension structure formwork platform connecting structure is characterized in that the main beam (91) is detachably connected with the second roof top (2) through a hoop (92), and a cushion block (93) is further connected between the main beam (91) and the second roof top (2); the cushion block (93) is suitable for the installation and adjustment height difference of the main beam (91).

3. The large-span high-suspension structure formwork supporting platform connecting structure as claimed in claim 2, further comprising an embedded plate (98) connected to the upper surface of the second roof top (2) at intervals and connected between the transverse hoops (92), and further comprising a reinforcing rib (99) connected between the embedded plate (98) and the reinforcing steel bar in the structure of the second roof top (2).

4. The large-span high-suspension structure formwork platform connection structure of claim 1, wherein the auxiliary support member (95) is a rod member, the top of the auxiliary support member (95) is connected below the main beam (91) through a pad beam (96), and the bottom of the auxiliary support member (95) is detachably connected with the elevator shaft shear wall (5) through a fixing plate (97).

5. The large-span high-suspension structure formwork platform connection structure of claim 4, wherein the brace member (94) comprises an outer brace (941) connected between the main beam (91) and the third roof top (3), an inner brace (942) connected between the outer brace (941) and the anchoring end of the main beam (91), and a brace member (943) connected between the outer brace (941) and the inner brace (942) and the building wall respectively.

6. The formwork platform connecting structure of the large-span high-suspension structure is characterized in that the height of the protective net (10) is at least 1.2m, and the protective net (10) is fixedly connected through the protective framework (11); the protection bone comprises a transverse framework and a vertical framework.

7. The formwork platform connecting structure of the large-span high-suspension structure is characterized in that the scaffold (6) comprises uprights (61) arranged at intervals, cross rods (62) vertically connected among the uprights (61), adjusting pieces (63) connected between the uprights (61) and the first roof top (1), side rods (64) arranged on the outermost side, and holding rods (65) vertically connected among the side rods (64); the protective net (10) is connected to the outer sides of the side rods (64) and the holding rods (65).

8. The large-span high-suspension structure formwork platform connecting structure of claim 7, wherein the scaffold (6) is further arranged between the first roof top (1) and a machine room roof (4) partially arranged above the first roof top (1), and the side rods (64) of the scaffold (6) are arranged in the vertical direction.

9. The formwork platform connection structure of the large-span high-suspension structure, according to claim 1, further comprises a bottom connecting rod (12) vertically connected below the main beam (91), wherein the height of the bottom connecting rod (12) is adapted to the height difference of the main beam (91) in situ.

10. The large-span high-suspension structure formwork platform connecting structure of claim 1, wherein the pulling member (8) comprises a pulling cable (81) connected between the overhanging ends of the first roof top (1) and the main beam (91) and a fixing member (82) embedded on the lower surface of the first roof top (1), and the pulling cable (81) is detachably connected with the fixing member (82).