CN107575034A - A kind of corner structure and construction method of steel platform formwork system bottom steel crossbeam - Google Patents

A kind of corner structure and construction method of steel platform formwork system bottom steel crossbeam Download PDF

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Publication number
CN107575034A
CN107575034A CN201710742353.2A CN201710742353A CN107575034A CN 107575034 A CN107575034 A CN 107575034A CN 201710742353 A CN201710742353 A CN 201710742353A CN 107575034 A CN107575034 A CN 107575034A
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girder steel
steel
horizontal
vertical
bracket
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CN201710742353.2A
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CN107575034B (en
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龚剑
夏巨伟
黄玉林
扶新立
秦鹏飞
潘曦
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Shanghai Construction Group Co Ltd
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Shanghai Construction Group Co Ltd
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Abstract

The invention discloses a kind of corner structure and construction method of steel platform formwork system bottom steel crossbeam, belong to construction of super highrise building field, the steel member on existing steel platform formwork system bottom steel crossbeam is solved using being welded to connect, is discarded after, it is impossible to the problem of reusing.The corner structure includes " groined type " structure of horizontal girder steel intersecting two-by-two and vertical girder steel composition, two horizontal girder steels and vertical girder steel difference are parallel and equidistant, the connection end of two vertical girder steels connects as one structure by horizontal girder steel three, and bracket joist is fixedly connected with the middle part of all horizontal girder steels successively.The construction method:First, fixed lateral girder steel forms " groined type " structure, and fixed lateral girder steel three and bracket joist with vertical girder steel respectively;2nd, by the pre-buried entrance orientationses of bracket joist face core wall structure, by the free end of horizontal girder steel and vertical girder steel and hanger beams bolt connection.

Description

A kind of corner structure and construction method of steel platform formwork system bottom steel crossbeam
Technical field
The invention belongs to construction of super highrise building field, and in particular to a kind of angle of steel platform formwork system bottom steel crossbeam Portion's structure and construction method.
Background technology
Steel platform formwork system is an important equipment of Super High core tube construction (see patent No. CN 102667889A With patent No. CN 1021661039A), because it is in closure, efficiency of construction, environment friendly, security, operation comfort level Etc. advantage, be widely used in Super High engineering.Steel platform formwork system is spatial steel-frame system, bottom steel crossbeam For the stress bearing entirely equipped, it is attached to by bracket bearing mould bases equipment thereon on core wall structure, thus bottom steel Crossbeam is the key member to core wall structure transmission by the load of mould bases equipment.To ensure safety in Practical Project, steel platform Steel member on formwork system bottom steel crossbeam uses welding substantially, just removes aforementioned components after construction and discards, it is impossible to Reuse, it is impossible to meet the requirement of green economy construction.
The content of the invention
It is an object of the invention to provide a kind of corner structure and construction method of steel platform formwork system bottom steel crossbeam, The bottom steel crossbeam is spliced using modular unit, and easy installation and removal is reusable, energy-conserving and environment-protective.
In order to solve the above technical problems, the present invention provides following technical scheme:
A kind of corner structure of steel platform formwork system bottom steel crossbeam, including intersecting two-by-two horizontal girder steel and vertical steel " groined type " structure of beam composition, the horizontal girder steel and the vertical girder steel difference are parallel and equidistant, the horizontal girder steel Respectively horizontal girder steel one and horizontal girder steel two, the vertical girder steel is respectively vertical girder steel one and vertical girder steel two, wherein, erect Structure, in addition to bracket joist, the ox are connected as one by horizontal girder steel three to the connection end of girder steel one, vertical girder steel two Middle part of the leg support beam successively with horizontal girder steel one, horizontal girder steel two and horizontal girder steel three is fixedly connected.
Further, the horizontal girder steel, vertical girder steel and bracket joist be unified specification H profile steel make and Into.
Further, between the horizontal girder steel and vertical girder steel, and the connection between bracket joist and horizontal girder steel The connected mode that node is welded using web bolt connection, the edge of a wing.
Further, the horizontal girder steel three is provided with bracket fixed bolt hole.
Further, the middle part of the bracket joist is provided with bracket rest bolt hole.
Present invention also offers the construction method of the corner structure of steel platform formwork system bottom steel crossbeam, the construction method Comprise the following steps:
Step 1: open up spiral shell at horizontal girder steel one and the middle part of horizontal girder steel two and the web of end and the edge of a wing respectively Keyhole, horizontal girder steel one, horizontal girder steel two and vertical girder steel one, vertical girder steel two-way are crossed into bolt connection and welding formation successively " groined type " structure, and fixed lateral girder steel three and bracket joist respectively;
Step 2: by the pre-buried entrance orientationses of bracket joist face core wall structure, and sequentially by horizontal girder steel one, horizontal steel One free end of beam two and vertical girder steel one, the free end of vertical girder steel two carry out bolt splicing with hanger beams respectively.
Further, in addition to step 3, after core wall structure is constructed, horizontal girder steel one, horizontal steel are removed respectively Beam two and vertical girder steel one, the vertical girder steel two and connection of hanger beams, and remove tub post and vertical girder steel one, vertical girder steel Two connection, reclaim the corner structure and repeat to be used in turn.
Compared with prior art, beneficial technique effect of the invention is as follows:
(1) corner structure is modular unit structure, and the precalculated position on its horizontal girder steel end, bracket joist is reserved There is bolt hole, it is convenient to be spliced with formwork system components such as tub post, overhanging bracket and bottom hanger beams;
(2) corner structure is set in " groined type ", and adaptability is good, can adapt to the pre-buried hole of Core Walls Structure of different azimuth Mouthful, smoothly by the pre-buried entrance orientationses of bracket joist face;
(3) corner structure is mainly bolted, easy installation and removal, can repeat to be used in turn, energy-conserving and environment-protective, Construction cost is saved.
Brief description of the drawings
Fig. 1 is the floor map of the corner structure of the steel platform formwork system bottom steel crossbeam of one embodiment of the invention;
Fig. 2 is the structural representation of " groined type " structure;
Fig. 3 is horizontal girder steel and vertical steel beam connecting joint detail drawing in one embodiment of the invention;
Fig. 4 is " groined type " structure and suspension bracket beam connecting node detail drawing in one embodiment of the invention.
In figure:
1- core wall structures, the pre-buried holes of 10-, 2- hanger beams, 21- ribbed stiffeners, 22- bolts one, 23- bolts two, 24- spiral shells Bolt three, 25- edges of a wing cover plate, 26- web cover plates, 3- tub pillar supports, 4- bracket retractor devices, 41- bracket joists, 42- brackets Fixed bolt hole, 43- bracket rest bolts hole, 51- transverse directions girder steel one, 52- transverse directions girder steel two, 53- transverse directions girder steel three, 61- is erected To girder steel one, the vertical girder steels two of 62-.
Embodiment
Corner below in conjunction with the drawings and specific embodiments to steel platform formwork system bottom steel crossbeam proposed by the present invention Structure and construction method are described in further detail.According to following explanation and claims, advantages and features of the invention will Become apparent from.It should be noted that accompanying drawing uses using very simplified form and non-accurately ratio, only to convenient, bright The purpose of the embodiment of the present invention is aided in illustrating clearly.For sake of convenience, described below " on ", " under " upper and lower with accompanying drawing Direction it is consistent, but this can not turn into technical solution of the present invention limitation.
Embodiment one
Describe the corner structure group of the steel platform formwork system bottom steel crossbeam of the present invention in detail with reference to Fig. 1 to Fig. 4 Into.
As shown in Figures 1 to 4, present embodiment discloses a kind of corner structure of steel platform formwork system bottom steel crossbeam, The corner structure includes " groined type " structure of horizontal girder steel intersecting two-by-two and vertical girder steel composition, horizontal girder steel and vertical steel Beam difference is parallel and equidistant, and horizontal girder steel is respectively horizontal girder steel 1 and horizontal girder steel 2 52, and vertical girder steel is respectively perpendicular To girder steel 1 and vertical girder steel 2 62, wherein, vertical girder steel 1, the connection end of vertical girder steel 2 62 pass through horizontal girder steel three 53 connect as one structure, in addition to bracket joist 41, bracket joist 41 successively with horizontal girder steel 1, horizontal girder steel 2 52 with And the middle part of horizontal girder steel 3 53 is fixedly connected.
Specifically, the corner structure of steel platform formwork system bottom steel crossbeam provided in an embodiment of the present invention and existing skill Art, which is compared, has following three points advantage:
(1) corner structure is modular unit structure, and the precalculated position on its horizontal girder steel end, bracket joist is reserved There is bolt hole, it is convenient to be spliced with formwork system components such as tub post, overhanging bracket and bottom hanger beams;
(2) corner structure is set in " groined type ", and adaptability is good, can adapt to the pre-buried hole of Core Walls Structure of different azimuth Mouthful, smoothly by the pre-buried entrance orientationses of bracket joist face;
(3) corner structure is mainly bolted, easy installation and removal, can repeat to be used in turn, energy-conserving and environment-protective, Construction cost is saved.
Preferably, for easy installation and removal and materials convenience, horizontal girder steel (51,52), vertical girder steel (61,62) And bracket joist 41 is that the H profile steel of unified specification is made.
Preferably, in order to ensure connectivity robustness, between horizontal girder steel and vertical girder steel, and bracket joist and horizontal steel The connected mode that connecting node between beam is welded using web bolt connection, the edge of a wing.
Preferably, horizontal girder steel 3 53 is provided with bracket fixed bolt hole 42, outer in bracket retractor device 4 for fixing Stretch bracket.
It is preferred that the middle part of bracket joist 41 is provided with bracket rest bolt hole 43, for fixing bracket rest.
Embodiment two
Please continue to refer to Fig. 1 to Fig. 4, the corner for present embodiments providing a kind of steel platform formwork system bottom steel crossbeam is tied The construction method of structure, the construction method comprise the following steps:
Step 1: opened respectively at horizontal girder steel 1 and the middle part of horizontal girder steel 2 52 and the web of end and the edge of a wing If bolt hole, horizontal girder steel 1, horizontal girder steel 2 52 and vertical girder steel 1, vertical girder steel 2 62 are connected by bolt successively Connect and weld formation " groined type " structure, and fixed lateral girder steel 3 53 and bracket joist 41 respectively;
Step 2: by the pre-buried direction of hole 10 of the face core wall structure of bracket joist 41, and sequentially by horizontal girder steel 1, One free end of horizontal girder steel 2 52 and vertical girder steel 1, the free end of vertical girder steel 2 62 enter with hanger beams 2 respectively Row bolt splices.
Please continue to refer to Fig. 3, illustrate the annexation of horizontal girder steel and vertical girder steel in the present embodiment.The corner structure Horizontal girder steel 2 52 is fixedly connected with the web of vertical structure 1 by bolt 1 in " groined type " structure, wherein, it is Ensure the connectivity robustness of the two, be additionally provided with ribbed stiffener 21.Horizontal girder steel 2 52 at the edge of a wing of vertical structure 1 with passing through It is welded to connect.
Please continue to refer to Fig. 4, illustrate in the present embodiment the annexation of " groined type " structure and hanger beams.It is somebody's turn to do " groined type " The web of the horizontal girder steel 2 52 of structure is fixedly connected with hanger beams 2 by bolt 2 23 and web cover plate 26, is somebody's turn to do " groined type " The edge of a wing of the horizontal girder steel 2 52 of structure is fixedly connected with hanger beams 2 by bolt 3 24 and edge of a wing cover plate 25.
Especially, in addition to step 3, after core wall structure 1 is constructed, horizontal girder steel 1, horizontal steel are removed respectively Beam 2 52 and vertical girder steel 1, the vertical girder steel 2 62 and connection of hanger beams 2, and remove tub pillar support 3 and vertical steel The connection of beam 1, vertical girder steel 2 62, reclaim the corner structure and repeat to be used in turn.
Foregoing description is only the description to present pre-ferred embodiments, not to any restriction of the scope of the invention, this hair Any change, the modification that the those of ordinary skill in bright field does according to the disclosure above content, belong to the protection of claims Scope.

Claims (7)

1. a kind of corner structure of steel platform formwork system bottom steel crossbeam, it is characterised in that including horizontal steel intersecting two-by-two " groined type " structure of beam and vertical girder steel composition, the horizontal girder steel and the vertical girder steel difference are parallel and equidistant, institute It is respectively horizontal girder steel one and horizontal girder steel two to state horizontal girder steel, and the vertical girder steel is respectively vertical girder steel one and vertical girder steel Two, wherein, vertical girder steel one, the connection end of vertical girder steel two connect as one structure, in addition to bracket by horizontal girder steel three Joist, middle part of the bracket joist successively with horizontal girder steel one, horizontal girder steel two and horizontal girder steel three are fixedly connected.
2. the corner structure of steel platform formwork system bottom steel crossbeam as claimed in claim 1, it is characterised in that the transverse direction Girder steel, vertical girder steel and bracket joist are that the H profile steel of unified specification is made.
3. the corner structure of steel platform formwork system bottom steel crossbeam as claimed in claim 1, it is characterised in that the transverse direction Between girder steel and vertical girder steel, and connecting node between bracket joist and horizontal girder steel is using web bolt connection, the wing The connected mode of edge welding.
4. the corner structure of steel platform formwork system bottom steel crossbeam as claimed in claim 1, it is characterised in that the transverse direction Girder steel three is provided with bracket fixed bolt hole.
5. the corner structure of steel platform formwork system bottom steel crossbeam as claimed in claim 1, it is characterised in that the bracket The middle part of joist is provided with bracket rest bolt hole.
6. the construction method of the corner structure of steel platform formwork system bottom steel crossbeam as claimed in claim 1, its feature exist In comprising the following steps:
Step 1: open up bolt at horizontal girder steel one and the middle part of horizontal girder steel two and the web of end and the edge of a wing respectively Hole, horizontal girder steel one, horizontal girder steel two and vertical girder steel one, vertical girder steel two-way are crossed into bolt connection and welding formation successively " groined type " structure, and fixed lateral girder steel three and bracket joist respectively;
Step 2: by the pre-buried entrance orientationses of bracket joist face core wall structure, and sequentially by horizontal girder steel one, horizontal girder steel two A free end and vertical girder steel one, vertical girder steel two free end respectively with hanger beams carry out bolt splicing.
7. construction method as claimed in claim 6, it is characterised in that also including step 3, after core wall structure is constructed, Horizontal girder steel one, horizontal girder steel two and vertical girder steel one, vertical girder steel two and the connection of hanger beams are removed respectively, and remove cylinder The connection of trestle and vertical girder steel one, vertical girder steel two, reclaim the corner structure and repeat to be used in turn.
CN201710742353.2A 2017-08-25 2017-08-25 Construction method for corner structure of bottom steel girder of steel platform formwork system Active CN107575034B (en)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101949211A (en) * 2010-10-29 2011-01-19 中建三局建设工程股份有限公司 Low-position few-fulcrum modularized integral jacking steel platform formwork system
CN201865340U (en) * 2010-10-29 2011-06-15 中建三局第三建设工程有限责任公司 Combined supporting upright column of low-position jacking formwork system
CN202000646U (en) * 2011-01-30 2011-10-05 中建三局建设工程股份有限公司 Self-lifting construction platform integrating vertical transportation device and mould frame
CN202416586U (en) * 2012-02-07 2012-09-05 北京建筑工程学院 Beam-end cover plate reinforced-bolted splice joint for steel framework
CN202644735U (en) * 2012-03-02 2013-01-02 青岛理工大学 Assembly type rigid node of steel-structure beam column
CN203174767U (en) * 2013-04-11 2013-09-04 香港华艺设计顾问(深圳)有限公司 Steel reinforced concrete frame four-corner barrel bi-directional large-span steel truss mixed structure
CN105756080A (en) * 2016-04-28 2016-07-13 中核华兴达丰机械工程有限公司 Multifunctional nuclear-power-plant reactor-core cross-beam underframe foundation
CN105908865A (en) * 2016-06-15 2016-08-31 东南大学 Steel plate shear wall
CN106149882A (en) * 2016-08-25 2016-11-23 中冶建筑研究总院有限公司 A kind of lateral resisting and antigravity separate steel structure of housing system and construction method thereof

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101949211A (en) * 2010-10-29 2011-01-19 中建三局建设工程股份有限公司 Low-position few-fulcrum modularized integral jacking steel platform formwork system
CN201865340U (en) * 2010-10-29 2011-06-15 中建三局第三建设工程有限责任公司 Combined supporting upright column of low-position jacking formwork system
CN101949211B (en) * 2010-10-29 2012-01-04 中建三局建设工程股份有限公司 Low-position few-fulcrum modularized integral jacking steel platform formwork system
CN202000646U (en) * 2011-01-30 2011-10-05 中建三局建设工程股份有限公司 Self-lifting construction platform integrating vertical transportation device and mould frame
CN202416586U (en) * 2012-02-07 2012-09-05 北京建筑工程学院 Beam-end cover plate reinforced-bolted splice joint for steel framework
CN202644735U (en) * 2012-03-02 2013-01-02 青岛理工大学 Assembly type rigid node of steel-structure beam column
CN203174767U (en) * 2013-04-11 2013-09-04 香港华艺设计顾问(深圳)有限公司 Steel reinforced concrete frame four-corner barrel bi-directional large-span steel truss mixed structure
CN105756080A (en) * 2016-04-28 2016-07-13 中核华兴达丰机械工程有限公司 Multifunctional nuclear-power-plant reactor-core cross-beam underframe foundation
CN105908865A (en) * 2016-06-15 2016-08-31 东南大学 Steel plate shear wall
CN106149882A (en) * 2016-08-25 2016-11-23 中冶建筑研究总院有限公司 A kind of lateral resisting and antigravity separate steel structure of housing system and construction method thereof

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