CN110439318A - A kind of existing building, which is inversely removed, uses vertical conversion - Google Patents

A kind of existing building, which is inversely removed, uses vertical conversion Download PDF

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Publication number
CN110439318A
CN110439318A CN201910777462.7A CN201910777462A CN110439318A CN 110439318 A CN110439318 A CN 110439318A CN 201910777462 A CN201910777462 A CN 201910777462A CN 110439318 A CN110439318 A CN 110439318A
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China
Prior art keywords
bearing
girder steel
existing building
frame column
girder
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CN201910777462.7A
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Chinese (zh)
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CN110439318B (en
Inventor
郑子玥
郑文忠
许崇浩
王英
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Harbin Institute of Technology
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Harbin Institute of Technology
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    • 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
    • E04G23/00Working measures on existing buildings
    • E04G23/08Wrecking of buildings

Abstract

A kind of existing building is inversely removed with vertical conversion, and the present invention relates to building demolition fields, and in particular to a kind of to utilize the reverse construction method for removing existing building of vertical conversion.The present invention is to solve the vertical supporting members that can not be truncated simultaneously in existing reverse demolishing process, remove duration longer problem.Method: the characteristics of Vierendeel girder beam-ends normal section shear-carrying capacity is much higher than Beams Oblique Section Carrying Capacity is fully considered, the vertical load for undertaking the column by the girder steel of screw support by being arranged on the downside of column side frame is set a roof beam in place, undertakes the vertical load that pillar undertakes during inversely removing vertical member by screw rod.The present invention can replace building original vertical supporting member load-bearing in reverse demolishing process, guarantee the safety in demolishing process.

Description

A kind of existing building, which is inversely removed, uses vertical conversion
Technical field
The present invention relates to building demolition fields, and in particular to a kind of to utilize the reverse construction for removing existing building of vertical conversion Method.
Background technique
It is known as reverse demolition technique by the technology for completing building demolition at one layer with jacking system is lifted, inversely removes skill Art is suitable for the dismounting that cities and towns are intensively built.It needs to replace building using vertical conversion equipment appropriate in reverse demolishing process Original vertical supporting member, to guarantee the safety in demolishing process.Currently, mainly using being supported on column in reverse demolishing process The jack of lower section replaces former column load-bearing, to ensure that vertical load still can be transmitted effectively when the vertical member built is truncated, and torn open Except when can not simultaneously columns all in same layer are truncated, only can gradually truncation part column and increase its correspond to jack propped up It holds, it is longer to remove the duration.
Summary of the invention
The vertical supporting member that the invention aims to solve not being truncated simultaneously in existing reverse demolishing process is removed Duration longer problem, and a kind of existing building inversely dismounting vertical conversion is provided.
Inversely dismounting is specifically sequentially included the following steps: with vertical conversion for a kind of existing building
One, determine vertical load that single frame column is undertaken by several layers of Vierendeel girders by existing building structure to be removed Beam-ends normal section shear-carrying capacity undertakes;Choose frame column opposite two sides big with every layer of Vierendeel girder staight scissors bearing capacity Support Position as setting screw rod and bearing girder steel;The length of the screw rod is not less than the corresponding story height;The branch The bearing capacity of girder steel is held not less than Vierendeel girder beam-ends normal section bearing capacity;
Two, four circular holes are made a call in the superstructure region of frame column position, four screw rods is passed through into circle from top to bottom respectively Locking nut below hole, the bearing girder steel that every layer of Vierendeel girder lower surface is set and setting bearing girder steel, and pass through large size Nut anchoring is supported on Ji Ding;
Three, the locking nut below synchronous rotary bearing girder steel, keeps the frame soffit for supporting girder steel with being supported tight Contiguity touching;
Four, frame column is rejected into certain length, which is greater than very heavy heights of roofs, but is not more than very heavy heights of roofs oiling cylinder Range;
Five, jack is placed in frame column and removes section, jack send oil, the oil cylinder support top frame column of partial dismantling Lower end surface separates bearing girder steel with the frame soffit that it is supported, and downward synchronous rotary whole locking nut to oil cylinder is leant out Length, bearing girder steel decline with locking nut;
Six, the oil cylinder leant out is bounced back, is moved away from jack by jack oil return, continues a section for rejecting frame column, should Section length is the length that oil cylinder is leant out;
Seven, step 5 and step 6 are repeated in until place layer frame column is all removed;
Eight, the superstructure for removing layer where all removing frame column and Vierendeel girder, is successively removed by above-mentioned steps, final complete At the reverse dismounting of existing building.
Beneficial effects of the present invention:
The present invention also utilizes screw rod and bearing girder steel in addition to replacing former column load-bearing using the jack being supported below column Load-bearing can be truncated and be removed to columns all in same layer simultaneously, can effectively save the duration, guarantee that reverse safety of removing carries out.
Detailed description of the invention
Fig. 1 is the relative position schematic diagram of screw rod, bearing girder steel, frame column and Vierendeel girder;
Fig. 2 is Fig. 1 side view;
Fig. 3 is that frame column is rejected the structural schematic diagram after certain length by step 4;
Fig. 4 is that jack is placed in the structural schematic diagram after frame column removes section in step 5;
Fig. 5 is the structural schematic diagram for the length that synchronous rotary whole locking nut to oil cylinder is leant out downwards in step 5;
Fig. 6 is the structural schematic diagram in step 6 after jack oil return;
Fig. 7 is the structural schematic diagram for continuing to reject in step 6 after a section of frame column;
Fig. 8 vertical converting system schematic diagram when being removal lowermost layer locking nut and support steel beam;
Each layer of screw tip vertical converting system schematic diagram when Fig. 9 is removal lowermost layer locking nut and support steel beam.
Specific embodiment
Specific embodiment 1: illustrating present embodiment in conjunction with Fig. 1~9, a kind of existing building of present embodiment is inversely torn open Except specifically being sequentially included the following steps: with vertical conversion
One, determine vertical load that single frame column 2 is undertaken by several layers of frames by existing building structure to be removed Beam 3 beam-ends normal section shear-carrying capacity undertakes;Choose opposite two big with every layer of 3 staight scissors bearing capacity of Vierendeel girder of frame column 2 Support Position of a side as setting screw rod 1 and bearing girder steel 4;The length of the screw rod 1 is not less than the corresponding story height Degree;The bearing capacity of the bearing girder steel 4 is not less than Vierendeel girder beam-ends normal section bearing capacity;
Two, four circular holes are made a call in the superstructure region of 2 position of frame column, four screw rods 1 is passed through from top to bottom respectively Locking nut 5 below circular hole, the bearing girder steel 4 that 3 lower surface of every layer of Vierendeel girder is set and setting bearing girder steel 4, and lead to It crosses the anchoring of large-scale nut 6 and is supported on Ji Ding;
Three, the locking nut 5 below synchronous rotary bearing girder steel 4, makes 3 bottom surface of Vierendeel girder for supporting girder steel 4 with being supported It is in close contact;
Four, frame column 2 is rejected into certain length, which is greater than 7 height of jack, but highly adds no more than jack 7 The range of oil cylinder 8;
Five, jack 7 is placed in frame column 2 and removes section, jack 7 send oil, the frame of oil cylinder support top partial dismantling The lower end surface of column 2, make support girder steel 4 separated with 3 bottom surface of Vierendeel girder that it is supported, downward synchronous rotary whole locking nut 5 to The length that oil cylinder 8 is leant out, bearing girder steel 4 decline with locking nut 5;
Six, the oil cylinder 8 leant out is bounced back, is moved away from jack 7 by 7 oil return of jack, continues an area for rejecting frame column 2 Section, the section length are the length that oil cylinder 8 is leant out;
Seven, step 5 and step 6 are repeated in until place layer frame column 2 is all removed;
Eight, the superstructure for all having removed frame column 2 and 3 place layer of Vierendeel girder is removed, is successively removed by above-mentioned steps, finally Complete the reverse dismounting of existing building.
Specific embodiment 2: the present embodiment is different from the first embodiment in that: girder steel 4 is supported described in step 1 The selection of material, section and size set a roof beam in place 3 beam-ends normal section bearing capacities according to bearing 4 bearing capacity of girder steel not less than institute's supporting frame Principle.Other are same as the specific embodiment one.
Specific embodiment 3: the present embodiment is different from the first and the second embodiment in that: layer is determined in step 1 The sum of beam-ends normal section shear-carrying capacity of several Vierendeel girders 3 is greater than the vertical load of frame column 2.Other and specific embodiment One or two is identical.
Specific embodiment 4: unlike one of present embodiment and specific embodiment one to three: when frame is arrived in construction Set a roof beam in place 3 when directly remove without specially treated.Other are identical as one of specific embodiment one to three.
Specific embodiment 5: unlike one of present embodiment and specific embodiment one to four: when removal to certain When one layer of 3 basal surface position of Vierendeel girder, the bearing girder steel 4 on this layer of 3 top of Vierendeel girder is moved to this layer of Vierendeel girder 3 by lifting handle 1 Top surface, it is fixed to hang screw rod 1, the lock of 3 lower part of this layer of Vierendeel girder of removal using locking nut 5 in the top surface of the bearing girder steel 4 Tight nut 5 and bearing girder steel 4, then screw rod 1 is supported on Ji Ding, and the bearing girder steel 4 on top is resetted.Other and specific implementation One of mode one to four is identical.
Beneficial effects of the present invention are verified using following embodiment:
Embodiment one: inversely dismounting is specifically sequentially included the following steps: with vertical conversion for a kind of existing building
One, determine vertical load that single frame column 2 is undertaken by several layers of frames by existing building structure to be removed Beam 3 beam-ends normal section shear-carrying capacity undertakes;Choose opposite two big with every layer of 3 staight scissors bearing capacity of Vierendeel girder of frame column 2 Support Position of a side as setting screw rod 1 and bearing girder steel 4;The length of the screw rod 1 is not less than the corresponding story height Degree;The bearing capacity of the bearing girder steel 4 is not less than Vierendeel girder beam-ends normal section bearing capacity;
Two, four circular holes are made a call in the superstructure region of 2 position of frame column, four screw rods 1 is passed through from top to bottom respectively Locking nut 5 below circular hole, the bearing girder steel 4 that 3 lower surface of every layer of Vierendeel girder is set and setting bearing girder steel 4, and lead to It crosses the anchoring of large-scale nut 6 and is supported on Ji Ding;
Three, the locking nut 5 below synchronous rotary bearing girder steel 4, makes 3 bottom surface of Vierendeel girder for supporting girder steel 4 with being supported It is in close contact;
Four, frame column 2 is rejected into certain length, which is greater than 7 height of jack, but highly adds no more than jack 7 The range of oil cylinder 8;
Five, jack 7 is placed in frame column 2 and removes section, jack 7 send oil, the frame of oil cylinder support top partial dismantling The lower end surface of column 2, make support girder steel 4 separated with 3 bottom surface of Vierendeel girder that it is supported, downward synchronous rotary whole locking nut 5 to The length that oil cylinder 8 is leant out, bearing girder steel 4 decline with locking nut 5;
Six, the oil cylinder 8 leant out is bounced back, is moved away from jack 7 by 7 oil return of jack, continues an area for rejecting frame column 2 Section, the section length are the length that oil cylinder 8 is leant out;
Seven, step 5 and step 6 are repeated in until place layer frame column 2 is all removed;
Eight, the superstructure for all having removed frame column 2 and 3 place layer of Vierendeel girder is removed, is successively removed by above-mentioned steps, finally Complete the reverse dismounting of existing building.
The present invention also utilizes screw rod and bearing girder steel in addition to replacing former column load-bearing using the jack being supported below column Load-bearing can be truncated and be removed to columns all in same layer simultaneously, can effectively save the duration, guarantee that reverse safety of removing carries out.

Claims (5)

1. a kind of existing building is inversely removed with vertical conversion, it is characterised in that existing building is inversely removed with vertical conversion Method specifically sequentially includes the following steps:
One, determine vertical load that single frame column (2) is undertaken by several layers of Vierendeel girders by existing building structure to be removed (3) beam-ends normal section shear-carrying capacity undertakes;Choose frame column (2) and every layer of Vierendeel girder (3) staight scissors bearing capacity greatly opposite Two sides as setting screw rod (1) and support girder steel (4) Support Position;The length of the screw rod (1) is not less than correspondence The story height;The bearing capacity of bearing girder steel (4) is not less than Vierendeel girder beam-ends normal section bearing capacity;
Two, four circular holes are made a call in the superstructure region of frame column (2) position, four screw rods (1) is passed through from top to bottom respectively Circular hole, setting support the locking nut of girder steel (4) below in the bearing girder steel (4) of every layer of Vierendeel girder (3) lower surface and setting (5), and by large-scale nut (6) anchoring it is supported on Ji Ding;
Three, the locking nut (5) of synchronous rotary bearing girder steel (4) below makes the Vierendeel girder (3) for supporting girder steel (4) with being supported Bottom surface is in close contact;
Four, frame column (2) are rejected into certain length, which is greater than jack (7) height, but no more than jack (7) height The range of oiling cylinder (8);
Five, jack (7) is placed in frame column (2) and removes section, jack (7) send oil, the frame of oil cylinder support top partial dismantling The lower end surface of trestle (2), Vierendeel girder (3) bottom surface for supporting bearing girder steel (4) with it separate, and downward synchronous rotary is all locked The length that nut (5) is leant out to oil cylinder (8), bearing girder steel (4) decline with locking nut (5);
Six, the oil cylinder leant out (8) are bounced back, are moved away from jack (7) by jack (7) oil return, continue reject frame column (2) one A section, the section length are the length that oil cylinder (8) are leant out;
Seven, step 5 and step 6 are repeated in until place layer frame column (2) is all removed;
Eight, the superstructure for removing layer where all removing frame column (2) and Vierendeel girder (3), is successively removed, finally by above-mentioned steps Complete the reverse dismounting of existing building.
2. a kind of existing building according to claim 1 is inversely removed with vertical conversion, it is characterised in that step 1 The selection of the material, section and size of bearing girder steel (4) is set a roof beam in place according to bearing girder steel (4) bearing capacity not less than institute's supporting frame (3) principle of beam-ends normal section bearing capacity.
3. a kind of existing building according to claim 1 is inversely removed with vertical conversion, it is characterised in that step 1 The sum of beam-ends normal section shear-carrying capacity of Vierendeel girder (3) of the middle determining number of plies is greater than the vertical load of frame column (2).
4. a kind of existing building according to claim 1 is inversely removed with vertical conversion, it is characterised in that work as construction It is directly removed to Vierendeel girder (3) Shi Wuxu specially treated.
5. a kind of existing building according to claim 1 is inversely removed with vertical conversion, it is characterised in that work as removal When to a certain layer Vierendeel girder (3) basal surface position, lifting handle (1) moves to the bearing girder steel (4) on this layer of Vierendeel girder (3) top The top surface of this layer of Vierendeel girder (3), it is fixed to hang screw rod (1) using locking nut (5) in the top surface of the bearing girder steel (4), it unloads Locking nut (5) and bearing girder steel (4) except this layer of Vierendeel girder (3) lower part, then screw rod (1) is supported on Ji Ding, and by top Bearing girder steel (4) reset.
CN201910777462.7A 2019-08-22 2019-08-22 Vertical conversion method for reverse demolition of existing building Active CN110439318B (en)

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Application Number Priority Date Filing Date Title
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CN110439318B CN110439318B (en) 2021-07-13

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113863715A (en) * 2021-10-13 2021-12-31 中国建筑第八工程局有限公司 Building structure reverse-operation demolition method and building structure reverse-operation demolition auxiliary equipment

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2608614Y (en) * 2003-03-21 2004-03-31 成志全 Early disassembling fully suspended supporting bracket
JP2016079759A (en) * 2014-10-22 2016-05-16 前田建設工業株式会社 Method and device for demolishing high-rise building
CN207260635U (en) * 2017-09-30 2018-04-20 江苏速捷模架科技有限公司 Separate type adjustable supports structure
CN108049656A (en) * 2017-12-27 2018-05-18 山东省建筑科学研究院 A kind of the reverse of chimney removes device and method for dismounting
CN108868193A (en) * 2018-07-27 2018-11-23 建研科技股份有限公司 Construction method for reversely dismantling steel structure building
CN208578354U (en) * 2018-06-07 2019-03-05 国网冀北电力有限公司张家口供电公司 Remove wall height-adjustable support device
CN109838114A (en) * 2019-04-01 2019-06-04 吉林建筑大学 Reinforced concrete structure inversely removes temporary support conversion equipment and its operating method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2608614Y (en) * 2003-03-21 2004-03-31 成志全 Early disassembling fully suspended supporting bracket
JP2016079759A (en) * 2014-10-22 2016-05-16 前田建設工業株式会社 Method and device for demolishing high-rise building
CN207260635U (en) * 2017-09-30 2018-04-20 江苏速捷模架科技有限公司 Separate type adjustable supports structure
CN108049656A (en) * 2017-12-27 2018-05-18 山东省建筑科学研究院 A kind of the reverse of chimney removes device and method for dismounting
CN208578354U (en) * 2018-06-07 2019-03-05 国网冀北电力有限公司张家口供电公司 Remove wall height-adjustable support device
CN108868193A (en) * 2018-07-27 2018-11-23 建研科技股份有限公司 Construction method for reversely dismantling steel structure building
CN109838114A (en) * 2019-04-01 2019-06-04 吉林建筑大学 Reinforced concrete structure inversely removes temporary support conversion equipment and its operating method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113863715A (en) * 2021-10-13 2021-12-31 中国建筑第八工程局有限公司 Building structure reverse-operation demolition method and building structure reverse-operation demolition auxiliary equipment

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