CN105625732B - Superelevation overhanging steel structure truss support free construction method - Google Patents
Superelevation overhanging steel structure truss support free construction method Download PDFInfo
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
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Abstract
The present invention provides a kind of superelevation overhanging steel structure truss support free construction method, preset the steel corbel of overhanging steel structure truss connection and the draw ring of installation in the position set on the steel reinforced concrete structure of high-rise building agent structure, implement the hanging installation of steel structure truss after the concrete main structure of high-rise building completes construction, set steel wire rope pull bar holding structure stable；The installation first floor first is encorbelmented flooring planar structure, and upper strata overhanging steel structure truss installa-tion is successively installed by the use of the stable first floor formed floor structure of encorbelmenting as installation operation platform.The present invention need not build the mounting bracket of superelevation system and use large lifting equipment, compared to common superelevation overhanging steel structure truss installa-tion construction method, can significantly it save the duration, save construction cost, with good economic benefit, construction is greatly reduced to the ambient influnence of surrounding simultaneously, with good social benefit.
Description
Technical field
The present invention relates to construction techniques, and in particular to a kind of superelevation overhanging steel structure truss support free construction method.
Background technology
Currently, high-rise building is increasingly common, is attractive in appearance or practical purpose, and high-rise building is in its agent structure
Top high level position is often designed with outer cantilevered structure.Outer cantilevered structure generally relies on outer overhanging steel structure truss to realize, thus
The installation of outer overhanging steel structure truss is a basic and important ring for the outer cantilevered structure construction of high-rise building.Super High
The outer cantilevered structure of building generally has the features such as structure height is high, span of encorbelmenting outside is big, difficulty of construction is high.High-rise building
The installation of outer overhanging steel structure truss, its conventional construction method is the installation branch that superelevation system is built since ground
Frame, is installed using large lifting equipment.Its deficiency existed is that construction cost is high, long construction period, and when building
There is the building built up around high-rise building, the construction site room for maneuver is smaller, it is impossible to carry out using large lifting equipment
During construction, then the construction method of installation of common outer overhanging steel structure truss can not be applicable.
The content of the invention
The purpose of the present invention is：There is provided a kind of mounting bracket that need not build superelevation system, without being reseted using large-scale
It is standby, using the high-rise building agent structure built up using the hanging superelevation overhanging steel structure truss for installing purlin frame method construction without branch
Support construction method.
The technical scheme is that：The superelevation overhanging steel structure truss support free construction method of the present invention, including it is following
Step：
Step one, steel corbel and suspension ring are preset：
Overhanging steel structure truss is preset at the position set on the building body steel reinforced concrete structure of high-rise building
The steel corbel of connection and the draw ring of installation；Steel corbel is provided with girder connecting portion and web member connecting portion；
Step 2, first floor steel platform is installed：
1. girder and inner side web member are installed on the inside of the first floor：Inner side girder by beam body, located at the inner inner side connecting portion of beam body,
Web member connecting portion, column connecting portion on the outside of beam body and the outside connecting portion composition located at beam body outer end；In each inner side master
1 eight-shaped in Chinese steel cord pull bar is fixedly installed in the beam body of beam and the joint portion of web member connecting portion and column connecting portion respectively in advance, uses
Tower crane overall increases to installed height mark, and each inner side girder is connected by the girder of the steel corbel of its inner side connecting portion and relevant position
Portion's bolt tentatively connects positioning；The other end of eight-shaped in Chinese steel cord pull bar is connected with the chain block being arranged on draw ring, utilized
Chain block adjusts the levelness of inner side girder by eight-shaped in Chinese steel cord pull bar and coordinates the installation of inner side web member, to design requirement
Eight-shaped in Chinese steel cord pull bar is fixedly connected with draw ring afterwards, and each connecting bolt is fastened；The web member of inner side web member and steel corbel connects
The web member connecting portion of socket part and inner side girder is fixedly connected with bolt respectively；
2. secondary beam is installed on the inside of the first floor：After each inner side erection of main beam is finished, install interior successively between each inner side girder
Side secondary beam；The two ends of each inner side secondary beam are fixedly connected with inner side girder respectively；So as to by each inner side girder and each inner side secondary beam structure
Steel platform on the inside of into the first floor；
3. bed board on the inside of the first floor：In laying construction plate on steel platform on the inside of the first floor installed；
4. erection of main beam on the outside of the first floor：Installation connecting portion of the outside girder by the second beam body, on the inside of the second beam body, set
The second web member connecting portion and the second column connecting portion composition on the outside of the second beam body；In the second beam body and the of each outside girder
1 eight-shaped in Chinese steel cord pull bar is fixedly installed in the joint portion of two web member connecting portions and the second column connecting portion respectively in advance, uses tower crane
Installed height mark is overall increased to, each outside girder is installed to the outside connecting portion spiral shell of connecting portion and corresponding inner side girder by it
Bolt tentatively connects positioning；The other end of eight-shaped in Chinese steel cord pull bar is connected with the chain block being arranged on draw ring, using pulling
By eight-shaped in Chinese steel cord pull bar and draw ring after levelness to the design requirement that cucurbit passes through eight-shaped in Chinese steel cord pull bar regulation outside girder
It is fixedly connected；Each connecting bolt between outside girder and inner side girder is fastened again；
5. secondary beam is installed on the outside of the first floor：After each outside erection of main beam is finished, install outer successively between each outside girder
Side secondary beam；The two ends of each outside secondary beam are fixedly connected with outside girder respectively；So as to by each outside girder and each outside secondary beam structure
Steel platform on the outside of into the first floor；
6. bed board on the outside of the first floor：In laying construction plate on steel platform on the outside of the first floor installed；
Step 3, builds operating platform：
The scaffold operating platform of more than two layers steel structure truss installations is built on first floor steel platform；
Step 4, two layers of steel structure truss are installed：
1. interior heel post is installed：Using scaffold operating platform, respectively with each fixation of bolt on each inner side girder of the first floor
1 root post is installed, interior heel post is used as；
2. two layers inner side erection of main beam：It is arranged in each interior heel post with corresponding on building body steel reinforced concrete structure
Steel corbel between be respectively fixedly mounted with bolt respectively 1 two layers inner side girders；Simultaneously by inner side web member between the first floor and two layers
Completion is installed complete；
3. two layers outside erection of main beam：1 root post is respectively fixedly mounted with bolt respectively on each outside girder of the first floor, as
Outer heel post；1 two layers of outside girder is respectively fixedly mounted with bolt respectively between each outer heel post and corresponding interior heel post；
4. outside web member is installed：Between the outside girder positioned at the first floor and the outside girder positioned at two layers with bolt one by one
Outside web member is fixedly mounted；
5. two level beams are installed：Secondary beam is fixedly mounted between two layers of inner side girder and two layers of outside girder；
Step 5, the three layers and three layers steel structure truss with upper strata is installed：
Using the method for such as step 4, three layers and three layers of steel construction with upper strata are gradually installed using scaffold operating platform
Truss, until the whole installations of structure；
Step 6, removes and installs auxiliary equipment：
Remove first and build the scaffold operating platform on first floor steel platform；Then each eight-shaped in Chinese steel is removed one by one again
Cord pull bar；The component removed is transported to ground using vertical transport tower crane.
The present invention has positive effect：（1）The superelevation overhanging steel structure truss support free construction method of the present invention, its profit
Used with the high-rise building agent structure built up and purlin frame method construction, the installation without building superelevation system are installed without bracket-suspending
Support, without large lifting equipment is used, compared to common superelevation overhanging steel structure truss installa-tion construction method, Neng Gou great
Width saves the duration, construction cost is saved, with good economic benefit.（2）The superelevation overhanging steel structure truss of the present invention is without branch
Support construction method, it has been filled up when there is the building that builds up around the high-rise building built, the construction site room for maneuver compared with
It is small, it is impossible to the construction method of installation of overhanging steel structure truss outside high-rise building is carried out when being constructed using large lifting equipment
Blank.（3）The superelevation overhanging steel structure truss support free construction method of the present invention, is built because it is used using the Super High built up
Agent structure is built without bracket-suspending installation method, its underpart need not build the mounting bracket of the huge superelevation system of the scale of construction, simultaneously
Without large lifting equipment is used, the ambient influnence of surrounding is greatly reduced so as to construct, with good social benefit.
Brief description of the drawings
Fig. 1 is the facade structures schematic diagram for the overhanging steel structure truss installed using the method for the present invention；
Fig. 2 is the planar structure schematic diagram for the overhanging steel structure truss installed using the method for the present invention；
Fig. 3 is that the facade structures schematic diagram on the inside of the overhanging steel structure truss first floor is installed using the method for the present invention；
Fig. 4 is that the facade structures schematic diagram on the outside of the overhanging steel structure truss first floor is installed using the method for the present invention；
Fig. 5 is that the facade structures schematic diagram on the inside of the overhanging steel structure truss second layer is installed using the method for the present invention；
Fig. 6 is that the facade structures schematic diagram on the outside of the overhanging steel structure truss second layer is installed using the method for the present invention.
Reference in above-mentioned accompanying drawing is as follows：
Building body steel reinforced concrete structure 1,
Steel corbel 2, girder connecting portion 21, web member connecting portion 22,
Draw ring 3,
Eight-shaped in Chinese steel cord pull bar 4,
Inner side girder 5, beam body 51, inner side connecting portion 52, web member connecting portion 53, column connecting portion 54, outside connecting portion 55,
Inner side web member 6,
Outside girder 7, the second beam body 71, installation connecting portion 72, the second web member connecting portion 73, the second column connecting portion 74,
Outside web member 8,
Column 9,
Inner side secondary beam 10, outside secondary beam 11.
Embodiment
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
（Embodiment 1）
The superelevation overhanging steel structure truss support free construction method of the present embodiment, its technological principle is：In high-rise building
Preset steel corbel and the installation of overhanging steel structure truss connection in the position set on the steel reinforced concrete structure of agent structure
Draw ring, implements the hanging installation of steel structure truss after the concrete main structure of high-rise building completes construction, sets steel
Cord pull bar holding structure is stable；The installation first floor first is encorbelmented flooring planar structure, and upper strata truss installa-tion utilizes shape
Into stable first floor floor structure of encorbelmenting successively installed as installation operation platform.
See Fig. 1 to Fig. 6, the superelevation overhanging steel structure truss support free construction method of the present embodiment, mainly including following step
Suddenly：
Step one, steel corbel and suspension ring are preset：
It is retained in the vertical transport tower crane set during high-rise building main structure construction, the present embodiment, vertical transport
50 meters of the tower crane radius of gyration at tower crane model TC7035B, overhanging steel structure truss installa-tion position, 5.32 tons of lift heavy, tower crane is adopted
Overhanging steel structure trussmember vertical transport is carried out with two multiplying powers；The position set on building body steel reinforced concrete structure 1
Preset the steel corbel 2 of some overhanging steel structure truss connections and the draw ring 3 of some installations in place；Steel corbel 2 is provided with girder
Connecting portion 21 and web member connecting portion 22.
Step 2, first floor steel platform is installed：
1. girder and inner side web member are installed on the inside of the first floor：As shown in figure 3, inner side girder 5 is by beam body 51, in beam body 51
The inner side connecting portion 52 at end, the web member connecting portion 53 located at the outside of beam body 51, column connecting portion 54 and located at the outer end of beam body 51
Outside connecting portion 55 constitute；Beam body 51 and the joint portion of web member connecting portion 53 and column connecting portion 54 in each inner side girder 5
1 eight-shaped in Chinese steel cord pull bar 4 is fixedly installed respectively in advance, installed height mark is overall increased to tower crane, by each inner side girder 5 by it
Inner side connecting portion 52 is tentatively connected positioning with bolt with the girder connecting portion 21 of the steel corbel 2 of relevant position；By eight-shaped in Chinese steel cord
The other end of pull bar 4 is connected with the chain block being arranged on draw ring 3, is adjusted using chain block by eight-shaped in Chinese steel cord pull bar 4
The levelness of section inner side girder 5 and the installation for coordinating inner side web member 6, to design requirement after by eight-shaped in Chinese steel cord pull bar 4 and draw ring 3
It is fixedly connected；Each connecting bolt is fastened；The web member connecting portion 22 and the web member of inner side girder 5 of inner side web member 6 and steel corbel 2
Connecting portion 53 is fixedly connected with bolt respectively；
2. secondary beam is installed on the inside of the first floor：After each inner side girder 5 is installed, installed successively between each inner side girder 5
Inner side secondary beam 10；The two ends of each inner side secondary beam 10 are fixedly connected with inner side girder 5 respectively；So as to by each inner side girder 5 and Ge Nei
Side secondary beam 10 constitutes steel platform on the inside of the first floor；
3. bed board on the inside of the first floor：In laying construction plate on steel platform on the inside of the first floor installed；
4. erection of main beam on the outside of the first floor：As shown in figure 4, outside girder 7 is by the second beam body 71, located at the inner side of the second beam body 71
Installation connecting portion 72, the second web member connecting portion 73 and the second column connecting portion 74 located at the outside of the second beam body 71 constitute；
Second beam body 71 of each outside girder 7 and the joint portion of the second web member connecting portion 73 and the second column connecting portion 74 are solid respectively in advance
1 eight-shaped in Chinese steel cord pull bar 4 is set surely, installed height mark is overall increased to tower crane, each outside girder 7 is installed into connecting portion by it
72 tentatively connect positioning with bolt with the outside connecting portion 55 of corresponding inner side girder 5；By the other end of eight-shaped in Chinese steel cord pull bar 4
It is connected with the chain block being arranged on draw ring 3, outside girder 7 is adjusted by eight-shaped in Chinese steel cord pull bar 4 using chain block
Eight-shaped in Chinese steel cord pull bar 4 is fixedly connected with draw ring 3 after levelness to design requirement；Again by between outside girder 7 and inner side girder 5
Each connecting bolt fastening；
5. secondary beam is installed on the outside of the first floor：After each outside girder 7 is installed, installed successively between each outside girder 7
Outside secondary beam 11；The two ends of each outside secondary beam 11 are fixedly connected with outside girder 7 respectively；So as to by each outside girder 7 and each outer
Side secondary beam 11 constitutes steel platform on the outside of the first floor；
6. bed board on the outside of the first floor：In laying construction plate on steel platform on the outside of the first floor installed；
Step 3, builds operating platform：
The scaffold operating platform of more than two layers steel structure truss installations is built on first floor steel platform；
Step 4, two layers of steel structure truss are installed（As shown in Figure 5 and Figure 6）：
1. interior heel post is installed：Using scaffold operating platform, divide on the column connecting portion 54 of each inner side girder 5 of the first floor
1 root post 9 is not fixedly mounted respectively with bolt, interior heel post is used as；
2. two layers inner side erection of main beam：In each interior heel post building body steel reinforced concrete structure 1 is arranged on corresponding
On steel corbel 2 between be respectively fixedly mounted with bolt respectively 1 two layers inner side girders 5；Simultaneously by inner side between the first floor and two layers
The completion of web member 6 is installed complete；
3. two layers outside erection of main beam：It is each with bolt respectively on the second column connecting portion 74 of each outside girder 7 of the first floor
1 root post 9 is fixedly mounted, outer heel post is used as；It is each solid with bolt respectively between each outer heel post and corresponding interior heel post
Dingan County fills 1 two layers of outside girder 7；
4. outside web member is installed：Between the outside girder 7 positioned at the first floor and the outside girder 7 positioned at two layers with bolt by
One is fixedly mounted outside web member 8；
5. two level beams are installed：Secondary beam is fixedly mounted between two layers of inner side girder 5 and two layers of outside girder 7；
Step 5, the three layers and three layers steel structure truss with upper strata is installed：
Using the method for such as step 4, three layers and three layers of steel construction with upper strata are gradually installed using scaffold operating platform
Truss, until the whole installations of structure；
Step 6, removes and installs auxiliary equipment：
Remove first and build the scaffold operating platform on first floor steel platform；Then each eight-shaped in Chinese steel is removed one by one again
Cord pull bar 4；The component removed is transported to ground using vertical transport tower crane.
Above example is the explanation of the embodiment to the present invention, rather than limitation of the present invention, relevant technology
The technical staff in field without departing from the spirit and scope of the present invention, can also make various conversion and change and obtain
To corresponding equivalent technical scheme, therefore all equivalent technical schemes should be included into the patent protection model of the present invention
Enclose.
Claims (1)
1. a kind of superelevation overhanging steel structure truss support free construction method, it is characterised in that：Comprise the following steps：
Step one, steel corbel and suspension ring are preset：
The connection of overhanging steel structure truss is preset at the position set on the building body steel reinforced concrete structure of high-rise building
Steel corbel and the draw ring of installation；Steel corbel is provided with girder connecting portion and web member connecting portion；
Step 2, first floor steel platform is installed：
1. girder and inner side web member are installed on the inside of the first floor：Inner side girder by beam body, located at the inner inner side connecting portion of beam body, be located at
Web member connecting portion, column connecting portion on the outside of beam body and the outside connecting portion composition located at beam body outer end；In each inner side girder
1 eight-shaped in Chinese steel cord pull bar is fixedly installed in beam body and the joint portion of web member connecting portion and column connecting portion respectively in advance, uses tower crane
Overall increase to installed height mark, by each inner side girder by its inner side connecting portion and relevant position steel corbel girder connecting portion spiral shell
Bolt tentatively connects positioning；The other end of eight-shaped in Chinese steel cord pull bar is connected with the chain block being arranged on draw ring, using pulling
Cucurbit by eight-shaped in Chinese steel cord pull bar adjust inner side girder levelness and coordinate inner side web member installation, to design requirement after will
Eight-shaped in Chinese steel cord pull bar is fixedly connected with draw ring, and each connecting bolt is fastened；The web member connecting portion of inner side web member and steel corbel
And the web member connecting portion of inner side girder is fixedly connected with bolt respectively；
2. secondary beam is installed on the inside of the first floor：After each inner side erection of main beam is finished, between each inner side girder successively install on the inside of time
Beam；The two ends of each inner side secondary beam are fixedly connected with inner side girder respectively；So as to constitute head by each inner side girder and each inner side secondary beam
Layer inner side steel platform；
3. bed board on the inside of the first floor：In laying construction plate on steel platform on the inside of the first floor installed；
4. erection of main beam on the outside of the first floor：Installation connecting portion of the outside girder by the second beam body, on the inside of the second beam body, located at
The second web member connecting portion and the second column connecting portion composition on the outside of two beam bodies；In the second beam body and the second abdomen of each outside girder
1 eight-shaped in Chinese steel cord pull bar is fixedly installed in the joint portion of bar connecting portion and the second column connecting portion respectively in advance, overall with tower crane
Installed height mark is promoted to, by each outside girder as at the beginning of it installs connecting portion with the outside connecting portion bolt of corresponding inner side girder
Step connection positioning；The other end of eight-shaped in Chinese steel cord pull bar is connected with the chain block being arranged on draw ring, chain block is utilized
Eight-shaped in Chinese steel cord pull bar and draw ring are fixed after adjusting levelness to the design requirement of outside girder by eight-shaped in Chinese steel cord pull bar
Connection；Each connecting bolt between outside girder and inner side girder is fastened again；
5. secondary beam is installed on the outside of the first floor：After each outside erection of main beam is finished, between each outside girder successively install on the outside of time
Beam；The two ends of each outside secondary beam are fixedly connected with outside girder respectively；So as to constitute head by each outside girder and each outside secondary beam
Layer outside steel platform；
6. bed board on the outside of the first floor：In laying construction plate on steel platform on the outside of the first floor installed；
Step 3, builds operating platform：
The scaffold operating platform of more than two layers steel structure truss installations is built on first floor steel platform；
Step 4, two layers of steel structure truss are installed：
1. interior heel post is installed：Using scaffold operating platform, 1 is respectively fixedly mounted with bolt respectively on each inner side girder of the first floor
Root post, is used as interior heel post；
2. two layers inner side erection of main beam：In each interior heel post and the corresponding steel being arranged on building body steel reinforced concrete structure
1 two layers of inner side girder is respectively fixedly mounted between bracket with bolt respectively；Simultaneously by inner side web member completion between the first floor and two layers
Install complete；
3. two layers outside erection of main beam：1 root post is respectively fixedly mounted with bolt respectively on each outside girder of the first floor, outside is used as
Column；1 two layers of outside girder is respectively fixedly mounted with bolt respectively between each outer heel post and corresponding interior heel post；
4. outside web member is installed：Fixed one by one with bolt between the outside girder positioned at the first floor and the outside girder positioned at two layers
Outside web member is installed；
5. two level beams are installed：Secondary beam is fixedly mounted between two layers of inner side girder and two layers of outside girder；
Step 5, the three layers and three layers steel structure truss with upper strata is installed：
Using the method for such as step 4, the three layers and three layers steel construction purlin with upper strata is gradually installed using scaffold operating platform
Frame, until the whole installations of structure；
Step 6, removes and installs auxiliary equipment：
Remove first and build the scaffold operating platform on first floor steel platform；Then each eight-shaped in Chinese steel cord is removed one by one again
Pull bar；The component removed is transported to ground using vertical transport tower crane.
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| CN201511025654.0A CN105625732B (en) | 2015-12-30 | 2015-12-30 | Superelevation overhanging steel structure truss support free construction method |
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| CN201511025654.0A CN105625732B (en) | 2015-12-30 | 2015-12-30 | Superelevation overhanging steel structure truss support free construction method |
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| CN106337564A (en) * | 2016-08-30 | 2017-01-18 | 上海二十冶建设有限公司 | Unstayed construction method for high-altitude oversized cantilever steel structure |
| CN110735478B (en) * | 2019-10-28 | 2021-04-30 | 盐城工学院 | Assembled concrete truss building structure |
| CN114673366A (en) * | 2022-05-10 | 2022-06-28 | 陕西建工机械施工集团有限公司 | Sectional steel beam high-altitude bracket-free sectional butt joint installation method |
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| JP2000073573A (en) * | 1998-08-31 | 2000-03-07 | Taisei Corp | Constructing method for multistoried building |
| CN102704693A (en) * | 2012-06-06 | 2012-10-03 | 绍兴县现代建筑工程有限公司 | Construction method of ultra-high layer steel structure in low-temperature environment |
| CN102839747A (en) * | 2012-09-24 | 2012-12-26 | 中国建筑第八工程局有限公司 | Construction method for steel structure truss of super high-rise special structure |
| CN104060688B (en) * | 2014-04-30 | 2016-06-08 | 浙江东南网架股份有限公司 | Super high steel structure shaped steel promotes the construction method of a support system |
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