CN102852344B - Construction method for dismounting high-rise cast-in-place concrete building - Google Patents

Construction method for dismounting high-rise cast-in-place concrete building Download PDF

Info

Publication number
CN102852344B
CN102852344B CN201210293230.2A CN201210293230A CN102852344B CN 102852344 B CN102852344 B CN 102852344B CN 201210293230 A CN201210293230 A CN 201210293230A CN 102852344 B CN102852344 B CN 102852344B
Authority
CN
China
Prior art keywords
floor
building
dismounting
construction method
floors
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201210293230.2A
Other languages
Chinese (zh)
Other versions
CN102852344A (en
Inventor
孟祥栋
汪龙
龚文璞
李海涛
黄钢琪
雷润生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Urban Construction Holdings Group Co Ltd
CHONGQING BLASTING CONSTRUCTION CO LTD
Original Assignee
Chongqing Urban Construction Holdings Group Co Ltd
CHONGQING BLASTING CONSTRUCTION CO LTD
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chongqing Urban Construction Holdings Group Co Ltd, CHONGQING BLASTING CONSTRUCTION CO LTD filed Critical Chongqing Urban Construction Holdings Group Co Ltd
Priority to CN201210293230.2A priority Critical patent/CN102852344B/en
Publication of CN102852344A publication Critical patent/CN102852344A/en
Application granted granted Critical
Publication of CN102852344B publication Critical patent/CN102852344B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention discloses a construction method for dismounting a high-rise cast-in-place concrete building. The construction method comprises the following steps of: (1) carrying out security checking calculation on bearing capability according to a load applied to a building structure when a building dismounting machine carries out dismounting operation among floors; arranging ejecting and supporting structures between the adjacent floors from a floor to be constructed to the bottom, wherein the ejecting and supporting structures are respectively ejected and fastened against an upper floor plate and a lower floor plate; and the quantity of floors in need of arranging the ejecting and supporting structures, and the quantity and the arrangement positions of the ejecting and supporting structures can be determined according to data obtained through the security checking calculation; (2) building a protection facility and erecting a passageway; (3) hoisting, assembling and debugging the building dismounting machine; and (4) crushing and dismounting the floors by using the floor dismounting machine. With the adoption of the construction method for dismounting the high-rise cast-in-place concrete building, provided by the invention, the bearing capabilities of a plurality of layers of floors are overlapped by using the ejecting and supporting structures, so as to provide the security for a large-size machine to do upstairs operation. The difficult problem that the large-size machine cannot be used for dismounting the high-rise building can be solved.

Description

A kind of high-rise cast-in-situ concrete building demolition construction method
Technical field
The invention belongs to demolishing buildings technical field, be specifically related to a kind of high-rise cast-in-situ concrete building demolition construction method.
Background technology
Projects has three kinds of forms such as demolition blasting, mechanical removal and manual demolition conventionally, demolition blasting mode has that the efficiency of dismounting is high, the duration is short, social influence is large, attention rate advantages of higher, but simultaneous risk is high, coordinate difficulty large, surrounding enviroment are required to the shortcomings such as height.Conventionally Government-Leading, surrounding enviroment better, coordinate difficulty relatively little, easily cause that media and the masses adopt the in the situation that of concern, in the comparatively harsh business district, city of condition, relatively less employing; Manual demolition, removes because workman utilizes small mechanical equipment, and strong adaptability is applicable to any place situation, shortcoming is that work efficiency is low, long in time limit, expense is high, labour protection and safety management requirement high; Mechanical removal, long-armed tear open building machine (long-armed hydraulic shear) remove now city remove in comparatively general, mainly for median low structure, according to incompletely statistics, when floor exceedes after 28m, be not allow big machinery upstairs, can only coordinate dismounting work by artificial and small-sized machine.In the time that highrise building is removed, because the gravity of big machinery self is far longer than the former design holding capacity of floor, when big machinery is removed operation at high-storey, can not bear its gravity and service load caves in because of floor, cause casualties and mechanical failure.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of city not using demolition blasting and manual demolition, safe and reliable high-rise cast-in-situ concrete building machinery Demolition Construction method.
In order to solve the problems of the technologies described above, the invention provides a kind of high-rise cast-in-situ concrete building demolition construction method, comprise the following steps:
(1), when tearing building machinery open remove operation in floor, the load that building structure is applied, carries out safety checking computations to its supporting capacity; From floor to be onstructed down, between contiguous floors, arrange and shore structure, described in shore structure and hold out against respectively upper and lower floor; Required layout is shored the number of floor levels of structure and is shored quantity and the installation position of structure, checks the data that obtain determine by described safety;
(2) setting up of the upper and lower passage of building of protective equipment, and construction material and lower waste residue passage;
(3) tear broken-up and hanging and assembling and the debugging of building machinery open;
(4) tear building machinery open floor is carried out to demolition reduction; In the time that floor is removed, synchronously sprinkled water in the position of removing;
According to above-mentioned construction sequence layering dismounting floor from top to bottom; The waste residue passage slag that falls under utilizing in removing; Dregs transports out of in time.In step (1), need to build the number of floor levels of shoring structure according to floor supporting capacity data calculating gained, by shoring the setting of structure, the mode of multi-layer construction structure approximate " stack " is combined, compare single story building structure (particularly floor), its supporting capacity has obtained greatly strengthening, avoid because building structure supporting capacity deficiency, cause tear open building machinery in construction because of reason generation security incidents such as flooring cave in, for big machinery provides a safe and reliable working platform in the time that highrise building is removed to work; Lower waste residue passage in step (2) transports out of the waste residue of removing floor generation in time, and the waste residue that has reduced upper strata floor dismounting generation is deposited in the active force on lower floor's floor, lower floor's floor being produced; Broken-up and hanging and assembling and the debugging of step (3) Zhong Duichai building machinery, be to start operation from top layer for convenient upstairs in the medium-and-large-sized mechanical energy of whole dismounting work, also can be by other hanging methods the whole disposable top layer that hangs on building of building machine of tearing open; When step (4) Zhong Chai building machinery is removed floor, synchronously sprinkling water, is while preventing from constructing, and the excessive contaminated environment of airborne dust has also avoided airborne dust to affect staff's normal work simultaneously.
Compared with prior art, the present invention accepts ground by the gravity of big machinery (long-armed building machine, the large excavator of tearing open) from floor by shoring structure (wood supports, hydraulic pressure shores, steel beam structure), the supporting capacity of multilayer floor is stacked up, for big machinery provides safe operating environment, solve the difficult problem that big machinery can not be removed high-rise building, due to the work of big machinery, remove operating efficiency is provided greatly with respect to artificial or small-sized machine, shortened the duration; Between contiguous floors, set up and shore structure, can realize the support to big machinery by supporting device two ends are held out against to floor, whole working procedure is simple, with low cost; The arranging of construction material passage and lower waste residue passage solved the timely transport of entering of machinery and waste residue.
As the further restriction of technical solution of the present invention, in order to increase the safety of big machinery, when floor dismounting in described step (4), can adopt orderly release, order is floor, non-bearing wall, beam, load bearing wall, post successively.
Detailed description of the invention
The invention provides a kind of high-rise cast-in-situ concrete building demolition construction method, comprise the following steps:
(1), when tearing building machinery open remove operation in floor, the load that building structure is applied, carries out safety checking computations to its supporting capacity; From floor to be onstructed down, between contiguous floors, arrange and shore structure, described in shore structure and hold out against respectively upper and lower floor; Required layout is shored the number of floor levels of structure and is shored quantity and the installation position of structure, checks the data that obtain determine by described safety;
(2) setting up of the upper and lower passage of building of protective equipment, and construction material and lower waste residue passage;
(3) tear broken-up and hanging and assembling and the debugging of building machinery open;
(4) tear building machinery open floor is carried out to demolition reduction; In the time that floor is removed, synchronously sprinkled water in the position of removing;
According to above-mentioned construction sequence layering dismounting floor from top to bottom; The waste residue passage slag that falls under utilizing in removing; Dregs transports out of in time.
Embodiment mono-:
Before carrying out mechanical removal, around main building, set up in advance double construction guard fender and walkway frame, building body is formed to closed.First water waters the floor of floor and body of wall, when preventing from constructing, and the excessive contaminated environment of airborne dust; Adopting small-sized machine is (3 × 4) m in two sizes of each layer strong supporting location cutting again 2otch (can consider to adopt elevator shaft), then at otch, chute, hoist engine are installed, make it form upper and lower waste passage and the upper and lower transport passage for transporting of facility.
Lay on necessary protection and waste passage and facility after lower channel completing, employing is torn building machine open floor, wall, beam, post is carried out to fragmentation (the outer member of choosing of the easy unstability in Demolition Construction such as eaves, balcony, external staircase can first utilize manually and be removed), and fragmentation is sprayed water simultaneously; Then adopt oxygen, acetylene welder cutting reinforcing bar; Finally utilize the lower waste residue passage slag that falls, when scarfing cinder, carry out depositing dust spray.After removing dregs, remove this layer of scaffold, protective screening.Adopt the slag field that excavator is loaded, self-tipping type automobile is specified to government from bottom shipment building waste.
Impact force when preventing that column from collapsing damages structure, and column collapse direction should be chosen on the position of lower floor's beam or wall; The reinforcing bar of column cut-off parts is stripped out, the structure muscle of reciprocal reinforcing bar and both sides is cut off, break to collapse direction.Rum point arranges building waste or straw bag, carries out buffering precautions against earthquakes.
Above-described is only the preferred embodiment of the present invention, should be understood that for a person skilled in the art, not departing under prerequisite of the present invention, can also make some distortion and improvement, these can not affect effect of the invention process and practical applicability.

Claims (2)

1. a high-rise cast-in-situ concrete building demolition construction method, is characterized in that: comprise the following steps:
(1) according to tearing load when building machinery is removed operation in floor, building structure being applied open, its supporting capacity is carried out to safety checking computations; From floor to be onstructed down, between contiguous floors, arrange and shore structure, described in shore structure and hold out against respectively upper and lower floor; Required layout is shored the number of floor levels of structure and is shored quantity and the installation position of structure, checks the data that obtain determine by described safety;
(2) setting up of the upper and lower passage of building of protective equipment, and construction material and lower waste residue passage;
(3) tear broken-up and hanging and assembling and the debugging of building machinery open;
(4) tear building machinery open floor is carried out to demolition reduction; In the time that floor is removed, synchronously sprinkled water in the position of removing;
According to above-mentioned construction sequence layering dismounting floor from top to bottom; The waste residue passage slag that falls under utilizing in removing; Dregs transports out of in time.
2. high-rise cast-in-situ concrete building demolition construction method according to claim 1, is characterized in that: the order of the dismounting to floor in described step (4) is floor, non-bearing wall, beam, load bearing wall, post successively.
CN201210293230.2A 2012-08-17 2012-08-17 Construction method for dismounting high-rise cast-in-place concrete building Expired - Fee Related CN102852344B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210293230.2A CN102852344B (en) 2012-08-17 2012-08-17 Construction method for dismounting high-rise cast-in-place concrete building

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210293230.2A CN102852344B (en) 2012-08-17 2012-08-17 Construction method for dismounting high-rise cast-in-place concrete building

Publications (2)

Publication Number Publication Date
CN102852344A CN102852344A (en) 2013-01-02
CN102852344B true CN102852344B (en) 2014-11-05

Family

ID=47399284

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210293230.2A Expired - Fee Related CN102852344B (en) 2012-08-17 2012-08-17 Construction method for dismounting high-rise cast-in-place concrete building

Country Status (1)

Country Link
CN (1) CN102852344B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105926976B (en) * 2016-03-31 2018-09-04 大连久鼎祥瑞特种工程技术研究院有限公司 The method of non-explosion slewing demolition of buildings
CN106907020B (en) * 2017-04-14 2022-06-14 金陵科技学院 Recycling machine for building
JP6928475B2 (en) * 2017-04-19 2021-09-01 株式会社Tom Formwork, bundle pillar formation method, and building demolition method
CN107419918B (en) * 2017-07-27 2019-06-14 上海二十冶建设有限公司 A kind of Historical Buildings periphery single-layer frame retains method for dismounting
CN107642251A (en) * 2017-09-20 2018-01-30 江山(福建)建设工程有限公司 A kind of high-rise cast-in-place concrete building demolition construction method
CN108518083B (en) * 2018-03-27 2020-09-11 五冶集团上海有限公司 Dismantling construction method of sintering main workshop
CN110512895A (en) * 2019-08-22 2019-11-29 温州金茂建设有限公司 A kind of high-rise cast-in-place concrete building demolition construction method
CN113027167A (en) * 2021-03-19 2021-06-25 中建八局天津建设工程有限公司 Environment-friendly demolition method for high-rise building
CN113482398A (en) * 2021-06-30 2021-10-08 上海宝冶集团有限公司 Gravity overturning building dismantling construction method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH116310A (en) * 1997-06-18 1999-01-12 Ohbayashi Corp Demolition method of multi-story building
CN1511216A (en) * 2001-05-22 2004-07-07 西松建设株式会社 Building demolishing method
CN101967888A (en) * 2010-10-20 2011-02-09 江苏江中集团有限公司 Multidirectional multi-fold blasting method for high-rise building with frame-shear structure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH116310A (en) * 1997-06-18 1999-01-12 Ohbayashi Corp Demolition method of multi-story building
CN1511216A (en) * 2001-05-22 2004-07-07 西松建设株式会社 Building demolishing method
CN101967888A (en) * 2010-10-20 2011-02-09 江苏江中集团有限公司 Multidirectional multi-fold blasting method for high-rise building with frame-shear structure

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
张锋.续建高层建筑的拆除改建施工技术.《建筑施工》.2002, *
续建高层建筑的拆除改建施工技术;张锋;《建筑施工》;20021031;390-391 *

Also Published As

Publication number Publication date
CN102852344A (en) 2013-01-02

Similar Documents

Publication Publication Date Title
CN102852344B (en) Construction method for dismounting high-rise cast-in-place concrete building
CN107119584B (en) A kind of method for dismounting of concrete rigid frame arch bridge
JP4461434B2 (en) Demolition curing unit and demolition method of high-rise building using it
CN202194365U (en) Hydraulic self-climbing type discharging platform
CN105569375B (en) Large and complex steel structure cell body protective demolition and installation method
CN107642251A (en) A kind of high-rise cast-in-place concrete building demolition construction method
CN107419918A (en) A kind of Historical Buildings periphery single-layer frame retains method for dismounting
CN107254974A (en) A kind of skyscraper removes device and its method quickly removed using the device
CN106679519A (en) Static blasting demolition method for interior reinforced concrete supports
CN203487803U (en) Safety protection structure for elevator shaft construction
JP2012162959A (en) Method for simultaneous ground and underground demolition of existing skeleton
CN112983047B (en) Static cutting demolition method suitable for blasting demolition
CN106193621A (en) Fabricated construction superimposed sheet string hangs construction method
CN110685459B (en) Breaking hammer dismantling construction method for dismantling hoist bent from lower part
CN102493367B (en) Non-blasting construction method for dismantling pier to land bridge
CN110485752B (en) High-rise building dismantling method and machine
CN112431439A (en) Mechanized crushing and dismantling method for low-rise building
CN101550723A (en) Construction method for codes of reserved structural column longitudinal steel bars
CN205348726U (en) Steel frame - steel sheet shear wall structure system construction tool formula operation platform
JP5409095B2 (en) Building construction method
CN112880507B (en) Perforation explosive charging explosion method suitable for blasting demolition of middle shear wall
CN112923820B (en) Perforation charge explosion method suitable for blasting demolition of middle upright column
CN203487802U (en) Slant self-climbing protection screen unit system
CN205346562U (en) Construction elevator structure of basement top plate opening installation
CN203334645U (en) Section steel cantilever scaffold device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141105

Termination date: 20180817