CN105952133A - Suspended large-span reinforced concrete structure construction steel platform and construction method - Google Patents

Suspended large-span reinforced concrete structure construction steel platform and construction method Download PDF

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Publication number
CN105952133A
CN105952133A CN201610556952.0A CN201610556952A CN105952133A CN 105952133 A CN105952133 A CN 105952133A CN 201610556952 A CN201610556952 A CN 201610556952A CN 105952133 A CN105952133 A CN 105952133A
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CN
China
Prior art keywords
steel
truss
construction
reinforced concrete
span
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Pending
Application number
CN201610556952.0A
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Chinese (zh)
Inventor
张雪利
吴敏
张全义
李兵
郑敏
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Second Construction Engineering Co Ltd of China Construction Third Engineering Division
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Second Construction Engineering Co Ltd of China Construction Third Engineering Division
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Filing date
Publication date
Application filed by Second Construction Engineering Co Ltd of China Construction Third Engineering Division filed Critical Second Construction Engineering Co Ltd of China Construction Third Engineering Division
Priority to CN201610556952.0A priority Critical patent/CN105952133A/en
Publication of CN105952133A publication Critical patent/CN105952133A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G3/00Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/28Mobile scaffolds; Scaffolds with mobile platforms
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00Component parts or accessories for scaffolds
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G3/00Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/28Mobile scaffolds; Scaffolds with mobile platforms
    • E04G2003/283Mobile scaffolds; Scaffolds with mobile platforms mobile horizontally

Abstract

The invention discloses a suspended large-span reinforced concrete structure construction steel platform. The platform comprises a steel truss, steel pulleys, a steel channel track, support brackets, anti-overturn devices and support steel channels, wherein frame beams and frame pillars serve as support points of the left end and right end of the steel truss, the steel pulleys are fixed to the bottoms of the two ends of the steel truss, the steel pulleys are placed in the steel channel track, the steel channel track is placed on one frame beam, the support brackets are pre-buried in the frame pillars, the anti-overturn device is connected with the steel truss through the frame beams, and multiple sections of support steel channels are arranged on the steel truss. The platform has the advantages of being reasonable in structural design, high in bearing capacity, safe in use and the like.

Description

Unsettled large-span steel-reinforced concrete structure construction steel platform and construction method
Technical field
The present invention relates to building field, particularly relate to unsettled large-span steel-reinforced concrete structure construction steel platform and construction method.
Background technology
At present, along with the continuous propelling of Development of China's Urbanization, developing rapidly of building trade, the moulding of urban architecture is done things creatively, and constantly breaks through tradition.Unique totally different architectural image often increases the difficulty of construction, and the especially reinforced concrete structure difficulty of construction with unsettled large span is very big.This type structure is because of lower floor structure both shrinks or non-structure plate, cannot directly set up supporting frame, console model scaffold or overhanging scaffold is generally used to construct as support system, but when this structure flying height is more than 50m, the poor stability of console model scaffold, and vertical pole's span is little, support body set up and dismounting takes time and effort;When this structure cross-section dimensions is relatively big, i.e. line load more than 20kN/m or area load more than 15kN/m2Time, the overhanging scaffold I-steel cross section that requires to encorbelment is bigger, and need to arrange diagonal brace, and end amount of deflection of encorbelmenting is big, and the stability of supporting frame there is no guarantee that.Simultaneously, console model scaffold and overhanging scaffold are higher because of its scaffolding height, it is easier high fall accident, cause the injures and deaths of personnel, more seriously in work progress, if supporting frame caves in, the dead group of group operating personnel above can be caused to hinder, lead to more greatly, the most great construction safety accident, therefore, the construction for the reinforced concrete structure of this type ultrahigh hanging large span has been not suitable for using console model or overhanging scaffold support system.
Summary of the invention
In order to overcome the defect of above-mentioned existing construction technology, it is an object of the invention to provide unsettled large-span steel-reinforced concrete structure construction steel platform and construction method.
The present invention takes techniques below scheme to realize: unsettled large-span steel-reinforced concrete structure construction steel platform, it includes steel truss, steel pulley, groove steel rail, support bracket, Overthrow preventing device and support channel-section steel;Two ends, described steel truss left and right are using Vierendeel girder and frame column as the strong point;Described steel pulley is fixed on the bottom at steel truss two ends;And described steel pulley is placed in groove steel rail;Described groove steel rail is placed on Vierendeel girder;Described support bracket is embedded in frame column;Described Overthrow preventing device is connected with steel truss by Vierendeel girder;Described steel truss is provided with multistage and supports channel-section steel.
Above-mentioned unsettled large-span steel-reinforced concrete structure construction steel platform, described steel truss is made up of three Pin main couples, six Pin jack truss and secondary beam.
Above-mentioned unsettled large-span steel-reinforced concrete structure construction steel platform, described support bracket is welded by H profile steel and pre-embedded steel slab.
Above-mentioned unsettled large-span steel-reinforced concrete structure construction steel platform, described Overthrow preventing device is made up of U-shaped ring, punched steel plate, nut and H profile steel column.
Above-mentioned unsettled large-span steel-reinforced concrete structure construction steel platform, described steel truss manually calabash realizes along groove steel rail sliding.
The construction method of above-mentioned unsettled large-span steel-reinforced concrete structure construction steel platform, comprises the following steps:
Step 1: be computed choosing suitable component, described steel truss height is 2.2m, and the top boom of primary and secondary truss, lower boom and vertical web rod cross section are HW400*400*13*21, and diagonal web member cross section is HW150*150*7*10, secondary beam section is HW150*150*7*10, and material is Q235B;
Step 2: in-site measurement unwrapping wire, on structural plane, unwrapping wire orients steel truss primary and secondary truss axial location, orients the position of groove steel rail simultaneously, and is fixed by groove steel rail temporarily.Steel pulley is placed in groove steel rail, and assembly Tong Bu with steel truss is welded and fixed;
Step 3: described steel truss is assembled on structural plane, primary and secondary truss connects node and girder is connected node etc. and is bolt weldering node with support, and the edge of a wing is butt weld, and web is that bolt connects.Secondary girder connection is pin-connected joint, and web is that bolt connects.On truss, lower edge and web member attachment weld are the weldering of groove full penetration, and remaining weld seam is angle welding;
Step 4: described support bracket should be constructed in advance, first pre-embedded steel slab embedded part, pouring frame post concrete, then welds tissue scaffold bracket by H profile steel with steel plate embedded part;
Step 5: after described steel truss is completed by design drawing assembly, supports 20# channel-section steel and keeps at a certain distance away elongated being laid on steel truss, and fix with Welding steel truss, supports the gap between channel-section steel and uses wood a tree, used in making timber for boats template completely to spread, prevents construction operation personnel from falling;
Step 6: be respectively adopted bottle gouard moved by hands in steel truss both sides and carry out sliding, after sliding onto design attitude, the front end of steel truss is converted to support bracket by steel pulley support and supports, and the rear end main couple lower boom of steel truss is welded and fixed with Overthrow preventing device;
Step 7: steel truss is in place, by carrying out unsettled large-span steel-reinforced concrete structural supporter body erection construction after checking and accepting.After unsettled large-span steel-reinforced concrete structure construction completes, carrying out the dismounting of body, during dismounting, using bottle gouard moved by hands to be slid onto by steel truss in structural slab face, steel truss is carried out cutting disassembling, and uses tower crane loose mail to be hoisted to ground.
The method have the advantages that the present invention has reasonable in design, structural bearing capacity is big and uses the advantages such as safety in sum; ensure that unsettled large-span steel-reinforced concrete structure construction quality; it is effectively protected the life security of staff; and greatly facilitate the operation of staff, improve work efficiency.
Accompanying drawing explanation
Fig. 1 is top view of the present invention;
Fig. 2 is steel truss plane graph;
Fig. 3 is main couple structural representation;
Fig. 4 is jack truss structural representation;
Fig. 5 is slip state structural representation of the present invention;
Fig. 6 is for supporting bracket schematic diagram;
Fig. 7 is Overthrow preventing device schematic diagram.
Wherein: 1, steel truss;2, steel pulley;3, groove steel rail;4, bracket is supported;5, Overthrow preventing device;6, structural plane;7, three Pin main couple;8, six Pin jack truss;9, top boom;10, lower boom;11, vertical web rod;12, diagonal web member;13, bottle gouard moved by hands;14, frame column;15, Vierendeel girder;16, return back to top bracing frame;17, channel-section steel is supported;18, template wood a tree, used in making timber for boats;19, H profile steel;20, pre-embedded steel slab;21, H profile steel column;22, nut;23, punched steel plate;24, U-shaped ring.
Detailed description of the invention
As shown in Figures 1 to 5, unsettled large-span steel-reinforced concrete structure construction steel platform, it includes steel truss 1, steel pulley 2, groove steel rail 3, supports bracket 4, Overthrow preventing device 5 and support channel-section steel 17;Described steel truss about 1 two ends are using Vierendeel girder 15 and frame column 14 as the strong point;Described steel pulley 2 is fixed on the bottom at steel truss 1 two ends;And described steel pulley 2 is placed in groove steel rail 3;Described groove steel rail 3 is placed on Vierendeel girder 15;Described support bracket 4 is embedded in frame column 14;Described Overthrow preventing device 5 is connected with steel truss 1 by Vierendeel girder 15;Described steel truss 1 is provided with multistage and supports channel-section steel 17.
Above-mentioned unsettled large-span steel-reinforced concrete structure construction steel platform, described steel truss 1 is made up of three Pin main couple 7, six Pin jack truss 8 and secondary beam.
Above-mentioned unsettled large-span steel-reinforced concrete structure construction steel platform, described support bracket 4 is welded by H profile steel 19 and pre-embedded steel slab 20.
Above-mentioned unsettled large-span steel-reinforced concrete structure construction steel platform, described Overthrow preventing device 5 is made up of U-shaped ring 24, punched steel plate 23, nut 22 and H profile steel column 21.
Above-mentioned unsettled large-span steel-reinforced concrete structure construction steel platform, manually calabash 13 realizes along groove steel rail 3 sliding described steel truss 1.
Above-mentioned unsettled large-span steel-reinforced concrete structure construction steel platform and construction method, comprise the following steps:
Step 1: be computed choosing suitable component, described steel truss 1 height is 2.2m, and the top boom 9 of primary and secondary truss, lower boom 10 and vertical web rod 11 cross section are HW400*400*13*21, and diagonal web member 12 cross section is HW150*150*7*10, secondary beam section is HW150*150*7*10, and material is Q235B;
Step 2: in-site measurement unwrapping wire, on structural plane 6, unwrapping wire orients steel truss 1 primary and secondary truss axial location, orients the position of groove steel rail 3 simultaneously, and is fixed by groove steel rail 3 temporarily.Steel pulley 2 is placed in groove steel rail 3, and assembly synchronize with steel truss 1 is welded and fixed;
Step 3: described steel truss 1 is assembled on structural plane 6, primary and secondary truss connects node and girder is connected node etc. and is bolt weldering node with support, and the edge of a wing is butt weld, and web is that bolt connects.Secondary girder connection is pin-connected joint, and web is that bolt connects.On truss, lower edge and web member attachment weld are the weldering of groove full penetration, and remaining weld seam is angle welding;
Step 4: described support bracket 4 should be constructed in advance, first pre-embedded steel slab embedded part, pouring frame post concrete, then welds tissue scaffold bracket by H profile steel 19 with steel plate embedded part 20;
Step 5: after described steel truss 1 is completed by design drawing assembly, keep at a certain distance away elongated being laid on steel truss 1 by support channel-section steel 17, and be welded and fixed with steel truss 1, support the gap between channel-section steel 17 and use the full paving of template wood a tree, used in making timber for boats 18, prevent construction operation personnel from falling;
Step 6: be respectively adopted bottle gouard moved by hands 13 in steel truss 1 both sides and carry out sliding, after sliding onto design attitude, the front end of steel truss 1 is converted to support bracket 4 by steel pulley 2 support and supports, and rear end main couple 7 lower boom 10 of steel truss 1 is welded and fixed with Overthrow preventing device 5;
Step 7: steel truss 1 is in place, by carrying out unsettled large-span steel-reinforced concrete structural supporter body erection construction after checking and accepting.After unsettled large-span steel-reinforced concrete structure construction completes, carrying out the dismounting of body, during dismounting, using bottle gouard moved by hands 13 to slide onto in structural plane 6 by steel truss 1, steel truss 1 is carried out cutting disassembling, and uses tower crane loose mail to be hoisted to ground.
The present invention has reasonable in design, structural bearing capacity is big and uses the advantages such as safety; ensure that unsettled large-span steel-reinforced concrete structure construction quality; it is effectively protected the life security of staff, and greatly facilitates the operation of staff, improve work efficiency.
The above is the enforcement explanation of the present invention, therefore all equivalence changes done according to structure, feature and the principle described in the present patent application scope or modification, in the range of being all included in present patent application.

Claims (6)

  1. The most unsettled large-span steel-reinforced concrete structure construction steel platform, it includes steel truss, steel pulley, groove steel rail, support bracket, Overthrow preventing device and support channel-section steel, it is characterised in that: two ends, described steel truss left and right are using Vierendeel girder and frame column as the strong point;Described steel pulley is fixed on the bottom at steel truss two ends;And described steel pulley is placed in groove steel rail;Described groove steel rail is placed on Vierendeel girder;Described support bracket is embedded in frame column;Described Overthrow preventing device is connected with steel truss by Vierendeel girder;Described steel truss is provided with multistage and supports channel-section steel.
  2. Unsettled large-span steel-reinforced concrete structure construction steel platform the most according to claim 1, it is characterised in that: described steel truss is made up of three Pin main couples, six Pin jack truss and secondary beam.
  3. Unsettled large-span steel-reinforced concrete structure construction steel platform the most according to claim 1, it is characterised in that: described support bracket is welded by H profile steel and pre-embedded steel slab.
  4. Unsettled large-span steel-reinforced concrete structure construction steel platform the most according to claim 1, it is characterised in that: described Overthrow preventing device is made up of U-shaped ring, punched steel plate, nut and H profile steel column.
  5. Unsettled large-span steel-reinforced concrete structure construction steel platform the most according to claim 1, it is characterised in that: described steel truss manually calabash realizes along groove steel rail sliding.
  6. 6. according to the construction method of the unsettled large-span steel-reinforced concrete structure construction steel platform described in claim 1-5, it is characterised in that comprise the following steps:
    Step 1: be computed choosing suitable component, described steel truss height is 2.2m, and the top boom of primary and secondary truss, lower boom and vertical web rod cross section are HW400*400*13*21, and diagonal web member cross section is HW150*150*7*10, secondary beam section is HW150*150*7*10, and material is Q235B;
    Step 2: in-site measurement unwrapping wire, on structural plane, unwrapping wire orients steel truss primary and secondary truss axial location, orients the position of groove steel rail simultaneously, and is fixed by groove steel rail temporarily;Steel pulley is placed in groove steel rail, and assembly Tong Bu with steel truss is welded and fixed;
    Step 3: described steel truss is assembled on structural plane, primary and secondary truss connects node and girder is connected node etc. and is bolt weldering node with support, and the edge of a wing is butt weld, and web is that bolt connects;Secondary girder connection is pin-connected joint, and web is that bolt connects;
    On truss, lower edge and web member attachment weld are the weldering of groove full penetration, and remaining weld seam is angle welding;
    Step 4: described support bracket should be constructed in advance, first pre-embedded steel slab embedded part, pouring frame post concrete, then welds tissue scaffold bracket by H profile steel with steel plate embedded part;
    Step 5: after described steel truss is completed by design drawing assembly, supports 20# channel-section steel and keeps at a certain distance away elongated being laid on steel truss, and fix with Welding steel truss, supports the gap between channel-section steel and uses wood a tree, used in making timber for boats template completely to spread, prevents construction operation personnel from falling;
    Step 6: be respectively adopted bottle gouard moved by hands in steel truss both sides and carry out sliding, after sliding onto design attitude, the front end of steel truss is converted to support bracket by steel pulley support and supports, and the rear end main couple lower boom of steel truss is welded and fixed with Overthrow preventing device;
    Step 7: steel truss is in place, by carrying out unsettled large-span steel-reinforced concrete structural supporter body erection construction after checking and accepting;
    After unsettled large-span steel-reinforced concrete structure construction completes, carrying out the dismounting of body, during dismounting, using bottle gouard moved by hands to be slid onto by steel truss in structural slab face, steel truss is carried out cutting disassembling, and uses tower crane loose mail to be hoisted to ground.
CN201610556952.0A 2016-07-15 2016-07-15 Suspended large-span reinforced concrete structure construction steel platform and construction method Pending CN105952133A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106545172A (en) * 2016-11-10 2017-03-29 中冶建工集团有限公司 A kind of installation method of high-altitude long-span steel truss
CN109610835A (en) * 2019-02-02 2019-04-12 南通职业大学 Purposes and its construction method of the high-altitude greatly across heavily loaded tool-typed formwork steel supporting platform

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CN102777026A (en) * 2011-12-06 2012-11-14 中建四局第三建筑工程有限公司 Method for constructing ultra-long rear casting plate supporting system by using Bailey frames
CN104895314A (en) * 2015-06-25 2015-09-09 中国葛洲坝集团第六工程有限公司 Truss platform for high and large space top plate concrete construction
CN105672638A (en) * 2016-02-17 2016-06-15 浙江精工钢结构集团有限公司 Scaffold with supporting and sliding functions and net rack mounting method
CN206329024U (en) * 2016-07-15 2017-07-14 中建三局第二建设工程有限责任公司 Hanging large-span steel-reinforced concrete structure construction steel platform

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Publication number Priority date Publication date Assignee Title
DE1434372A1 (en) * 1964-12-16 1969-04-24 Theodor Kueppers Baugesellscha Teaching framework for concrete structures
CN102777026A (en) * 2011-12-06 2012-11-14 中建四局第三建筑工程有限公司 Method for constructing ultra-long rear casting plate supporting system by using Bailey frames
CN104895314A (en) * 2015-06-25 2015-09-09 中国葛洲坝集团第六工程有限公司 Truss platform for high and large space top plate concrete construction
CN105672638A (en) * 2016-02-17 2016-06-15 浙江精工钢结构集团有限公司 Scaffold with supporting and sliding functions and net rack mounting method
CN206329024U (en) * 2016-07-15 2017-07-14 中建三局第二建设工程有限责任公司 Hanging large-span steel-reinforced concrete structure construction steel platform

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106545172A (en) * 2016-11-10 2017-03-29 中冶建工集团有限公司 A kind of installation method of high-altitude long-span steel truss
CN109610835A (en) * 2019-02-02 2019-04-12 南通职业大学 Purposes and its construction method of the high-altitude greatly across heavily loaded tool-typed formwork steel supporting platform

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Application publication date: 20160921