CN105970988A - Construction method for installing elevator shaft side wall rebars in raft foundation - Google Patents
Construction method for installing elevator shaft side wall rebars in raft foundation Download PDFInfo
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- CN105970988A CN105970988A CN201610405377.4A CN201610405377A CN105970988A CN 105970988 A CN105970988 A CN 105970988A CN 201610405377 A CN201610405377 A CN 201610405377A CN 105970988 A CN105970988 A CN 105970988A
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- Prior art keywords
- crane
- truck crane
- elevator
- raft foundation
- reinforcing bar
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/01—Flat foundations
-
- 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
Abstract
The invention discloses a construction method for installing elevator shaft side wall rebars in a raft foundation. The construction method comprises the steps that bottom-layer rebars and surface-layer rebars of the raft foundation are constructed, and the position of an elevator shaft is reserved in the raft foundation; a supporting bed-jig is arranged in the position, a certain distance away from the elevator shaft, between the bottom-layer rebars and the surface-layer rebars; an automobile crane is craned to the position, corresponding to the supporting bed-jig, of the surface-layer rebars through a tower crane; and the side wall rebars of the elevator shaft are craned and installed through the automobile crane. According to the construction method for installing the elevator shaft side wall rebars in the raft foundation, the automobile crane is placed on the raft foundation, the traditional tower crane is replaced with the automobile crane to complete heavy craning and installing tasks of the elevator shaft side wall rebars, and overuse of the tower crane is avoided; and meanwhile, the situation that risks exist due to the fact that a chain hoist is close to the side walls when the elevator shaft side wall rebars are craned and installed through the chain hoist in a super-thick raft is also avoided.
Description
Technical field
The present invention relates to a kind of the realm of building construction, particularly relate to a kind of installation elevator in raft foundation
The construction method of well sidewall reinforcing bar.
Background technology
Owing to land resource is limited, modern architecture, for meeting demand, mostly is high-rise building, Super High
Building is inevitable with super thick raft foundation, and the thickness of raft foundation is relatively big, commonly reach 5 meters and more than,
It is in raft foundation in the construction of installation elevator sidewall reinforcing bar, due to the raft thickness of slab of elevator sidewall
Degree is relatively big, and the quantity of reinforcement of elevator sidewall reinforcing bar is big, and reinforcing bar deadweight is the most heavier, the weight of every reinforcing bar
General 100kg～150kg to be reached, manually cannot install.
Due to elevator sidewall raft plate super thick, typically can reach more than 10m, use the lifting of calabash jack
During reinforcing bar, near sidewall, excessively dangerous, and 1# and the 2# tower crane installed of foundation ditch (place size is relatively
Little, and near urban district, 2 tower cranes can only be installed), 2# tower crane can not cover elevator position, 1#
Tower crane is mainly responsible for handling scene steel, steel structure etc., uses 1# tower crane to install sidewall reinforcing bar and can cause tower
The utilization rate hung is too low, and will have a strong impact on the duration.
Summary of the invention
The technical problem to be solved is to provide a kind of installation elevator sidewall in raft foundation
The construction method of reinforcing bar, it is possible to be substantially reduced the reinforcement installation dependency to tower crane, it is adaptable to engineering field
Narrow and small, the tower crane limited amount in ground and the lifting heavy operating mode of task.
For realizing above-mentioned technique effect, the invention discloses a kind of installation elevator side in raft foundation
The construction method of wall reinforcing bar, including step:
The bottom layer of the reinforcing steel of construction raft foundation and surfacing steel bar, and reserve elevator in described raft foundation
Well location is put；And in the described bottom layer of the reinforcing steel at a certain distance from described elevator and described surfacing steel bar
Between support jig is set；
Utilize tower crane that truck crane winches to correspondence to have in the described surfacing steel bar of described support jig；
Described truck crane is utilized to lift the sidewall reinforcing bar of described elevator.
The construction method installing elevator sidewall reinforcing bar in be set forth in raft foundation is further improved
In, the bottom layer of the reinforcing steel of construction raft foundation and surfacing steel bar, including:
The bottom layer of the reinforcing steel of colligation raft foundation；
Gluten supporting construction is installed on described bottom layer of the reinforcing steel；
Colligation surfacing steel bar in described gluten supporting construction, described surfacing steel bar is at described elevator well location
Put formation concave domain.
The construction method installing elevator sidewall reinforcing bar in be set forth in raft foundation is further improved
In, in described gluten supporting construction before surfacing steel bar described in colligation, also include:
In the described bottom layer of the reinforcing steel that colligation completes, moulding bed support pads is set；
Support jig is installed on described moulding bed support pads, and utilizes connecting rod by described support jig and institute
State gluten supporting construction to be welded to connect.
The construction method installing elevator sidewall reinforcing bar in be set forth in raft foundation is further improved
In, described truck crane includes vehicle body, the multiple wheels being positioned at described body bottom and is positioned at described vehicle body
Multiple supporting legs of both sides；Described support jig includes being supported in correspondingly each described wheel and every
By described company between the lattice support body of the lower section of individual described supporting leg, and multiple described lattice support body
Bar connects.
The construction method installing elevator sidewall reinforcing bar in be set forth in raft foundation is further improved
In, utilize tower crane to be winched to by truck crane in described surfacing steel bar by following steps:
Pack up the supporting leg of described truck crane, by tower crane lifting rope colligation at the leg location of described truck crane；
Suspension centre and the center of gravity finding out described truck crane is hung, it is ensured that all wheels of described truck crane by examination
Lifting time the most liftoff；
After finding out suspension centre and center of gravity, tower crane lifts by crane described truck crane, and after described truck crane is liftoff
Suspend lifting, make described truck crane remain static；
Tower crane continues to lift by crane described truck crane, and when the liftoff segment distance of described truck crane, suspends
Hang, described truck crane is moved a segment distance to tower crane center position；
Tower crane crane arm starts to swing, and described truck crane winches to the top position of described support jig；
Transfer described automobile to winch to, at described surfacing steel bar one segment distance, debug；
After debugging, continue to transfer described truck crane, make the pressure wheel of described truck crane at described surface layer steel
On muscle；
Put down the supporting leg of described truck crane.
The construction method installing elevator sidewall reinforcing bar in be set forth in raft foundation is further improved
In, before described truck crane is transferred to described surfacing steel bar, also include: in described surface layer steel
Lay supporting pad plate on muscle, and each lattice of described support jig is shown at described support backing plate subscript
The position of formula support body.
The construction method installing elevator sidewall reinforcing bar in be set forth in raft foundation is further improved
In, before utilizing described truck crane to lift the sidewall reinforcing bar of described elevator, also include: to described
Support frame and described surfacing steel bar carry out Deformation checking.
The construction method installing elevator sidewall reinforcing bar in be set forth in raft foundation is further improved
In, by following steps utilize described truck crane lift described elevator sidewall reinforcing bar:
Promoting the supporting leg of described truck crane, the wheel making described truck crane is the most liftoff；
By the sidewall reinforcing bar of root lifting elevator, after winching to the sidewall locations of elevator, manually carry out institute
State the colligation of sidewall reinforcing bar.
The construction method installing elevator sidewall reinforcing bar in be set forth in raft foundation is further improved
In, also include: after described sidewall reinforcement installation completes, utilize tower crane that described truck crane is hung institute
State support backing plate.
The construction method installing elevator sidewall reinforcing bar in be set forth in raft foundation is further improved
In, described support jig is arranged at the position apart from described elevator 10m～20m.
Due to the fact that and have employed above technical scheme so that it is have the advantages that
1) engineering ground is narrow and small, tower crane limited amount, and when tower crane lifting task is heavy, super thick raft plate
Sidewall reinforcing bar uses truck crane to carry out lifting the installation method of reinforcing bar on raft slab muscle, greatly reduces
The reinforcement installation dependency to tower crane；
2) convenient and quick construction, hence it is evident that decrease the set-up time of sidewall reinforcing bar, alleviate work simultaneously
Intensity；
3) the raft plate reinforcing bar binding duration is shortened, it is possible to fulfil underplate concrete ahead of schedule and pour, it is to avoid rainy season
Occur during construction that foundation pit collapse is dangerous；
4) reinforcing bar binding safety coefficient is high, it is to avoid reinforcing bar casualty accident occur.
Accompanying drawing explanation
Fig. 1 is the technique stream that the present invention installs the construction method of elevator sidewall reinforcing bar in raft foundation
Cheng Tu.
Fig. 2 is that the present invention installs the preferable of the construction method of elevator sidewall reinforcing bar in raft foundation
The schematic diagram of the raft foundation of embodiment.
Fig. 3 is that the present invention installs the preferable of the construction method of elevator sidewall reinforcing bar in raft foundation
The process chart of embodiment.
Fig. 4 is that the present invention installs the preferable of the construction method of elevator sidewall reinforcing bar in raft foundation
The site plan of the support jig of embodiment.
Fig. 5 is that the present invention installs the preferable of the construction method of elevator sidewall reinforcing bar in raft foundation
The elevation of the support jig of embodiment.
Fig. 6 is that the present invention installs the preferable of the construction method of elevator sidewall reinforcing bar in raft foundation
The elevation of another angle of the support jig of embodiment.
Fig. 7 is that the present invention installs the preferable of the construction method of elevator sidewall reinforcing bar in raft foundation
The lifting construction schematic diagram of the elevator sidewall reinforcing bar of embodiment.
Detailed description of the invention
Below in conjunction with the accompanying drawings and detailed description of the invention the present invention is further detailed explanation.
Referring initially to shown in Fig. 1, the present invention installs the construction of elevator sidewall reinforcing bar in raft foundation
Method mainly includes following construction technology:
S001: the bottom layer of the reinforcing steel of construction raft foundation and surfacing steel bar, and in raft foundation, reserve electricity
Stair shaft position；And setting between bottom layer of the reinforcing steel and the surfacing steel bar at a certain distance from distance elevator
Support frame；
S002: utilize tower crane to be winched to by truck crane having in the surfacing steel bar of support jig；
S003: utilize the sidewall reinforcing bar of truck crane lifting elevator.
The central idea of main employing is: is prevented by truck crane on raft foundation, utilizes truck crane generation
Complete the lifting task of heavy elevator sidewall reinforcing bar for traditional tower crane, save the mistake of tower crane
Degree uses；Meanwhile, it also avoid and use calabash jack to lift elevator sidewall steel in super thick raft plate
During muscle, due near sidewall, the danger existed.Further, by arranging a support in raft foundation
Frame, is made that improvement to raft board supporting structure, is supported truck crane and reinforces, and makes the truck crane can
To be stably installed on raft foundation, and play the effect avoiding raft foundation to deform.
Illustrate with an embodiment below and how to realize the present invention elevator is installed in raft foundation
The construction of sidewall reinforcing bar.
Coordinating shown in Fig. 2, in the present embodiment, raft foundation 11 is high building raft plate, and thickness is about
5m, and elevator 12 a size of 16250mm × 6850mm × 6800mm (H), elevator side
The plank thickness of wall position reaches about 11.8m, elevator sidewall reinforcing bar 13 shape and size such as Fig. 2 institute
Showing, in " 7 " font, this sidewall number of steel bars is many, and the weight of every is about 120 kilograms, manually
Cannot install.Owing to the raft plate sidewall thickness of elevator position reaches 11.8m, calabash jack is used to hang
During dress, near sidewall, excessively dangerous, and 1# and the 2# tower crane that foundation ditch is installed (place size is less,
And near urban district, 2 tower cranes can only be installed), 2# tower crane can not cover elevator position, 1# tower
Hanging main handling scene steel, the steel structure etc. be responsible for, sidewall reinforcing bar installed by employing 1# tower crane can cause tower crane
Utilization rate too low, and the duration will be had a strong impact on.Therefore, the present invention is used to install in raft foundation
The construction method of elevator sidewall reinforcing bar installs the sidewall reinforcing bar of elevator, is the most suitable.Tool
The working procedure of body is refering to shown in Fig. 3, and construction item sees as follows:
1, truck crane position selects
Truck crane is selected in elevator north side, needs to avoid the moulding bed of steel construction pre embedded bolt, simultaneously need to
23m lifting radius side can meet the normal lifting of elevator sidewall reinforcing bar.Need in the range of 23m to hang
Dress 0.12t lift heavy, selects QY12 truck crane, can meet requirement.
2, truck crane lifting analysis in place
Owing to truck crane is placed in the surfacing steel bar of raft foundation, it is impossible to directly reach specify position,
The on-the-spot place intending first allowing truck crane reach foundation ditch east side, then uses 1# tower crane (S1200M64)
Truck crane is hung appointment position, and truck crane supporting leg again is fixed.Require that truck crane to be placed accurately, really
Protect and be placed on the reinforcement point specified, the lifting of elevator sidewall reinforcing bar can be carried out.
1# tower crane center is front place about 44m to Office Area, has 22m to lifting point, according to
The lift heavy information of S1200M64,45m position maximum lift heavy is 26.6T, and middle QY12 truck crane
Weight be 20T, lifting requirements can be met.Truck crane lifting point from the farthest angle of elevator away from
From for 20m, the coverage that middle QY12 truck crane is arranged is 23m, can meet elevator institute
There is the lifting requirements of sidewall reinforcing bar.
3, the support jig design and construction of truck crane lifting point surfacing steel bar
In order to ensure the stable of the support system of whole surfacing steel bar and safety, need truck crane in place
Region carries out local stiffening, mainly 161, two trailing wheels 162 and four of two front-wheels to truck crane
Individual supporting leg 163 position reinforces, the most as shown in Figure 4.
Wherein, two front-wheels 161 of truck crane and two trailing wheels 162 are positioned at the bottom of truck crane vehicle body,
Four supporting legs 163 of truck crane are positioned at the both sides of vehicle body；Support jig includes being supported in correspondingly
Between the lattice support body 14 of the lower section of each wheel and each supporting leg, and multiple lattice support body 14
Connected by connecting rod, refering to shown in Fig. 5 and Fig. 6.14 4 corners of lattice support body use 16#'s
I-steel, a size of 1000mm × 1000mm, the height of moulding bed specifically combines the thickness of raft plate and determines.
Connect between the I-steel at four angles and have cross bar and diagonal brace, it is contemplated that tower crane lifts big arm swing and produces relatively
Big moment, cross bar and diagonal brace use 10# channel-section steel, arrange together every 1000mm height.
The bottom layer of the reinforcing steel 111 of construction raft foundation 11 and surfacing steel bar 112, specifically include:
The bottom layer of the reinforcing steel 111 of colligation raft foundation 11；
Gluten supporting construction 17 is installed on bottom layer of the reinforcing steel 111；
Colligation surfacing steel bar 112 in gluten supporting construction 17, surfacing steel bar 112 is at elevator 12
Position forms concave domain, and the sidewall reinforcing bar 13 of elevator is just installed on the surrounding of this concave domain.
Wherein, it is in gluten supporting construction, before colligation surfacing steel bar, also to include:
In the bottom layer of the reinforcing steel 111 that colligation completes, moulding bed support pads is set；
Support jig is installed on moulding bed support pads, and utilizes connecting rod 18 to be supported with gluten by support jig
Structure 17 is welded to connect.
Moulding bed support pads therein uses 10# channel-section steel, pad to be located at each lattice support body of support jig
Between bottom and the bottom layer of the reinforcing steel 111 of raft foundation 11 of 14, play supporting role；Raft foundation
The surfacing steel bar 112 of 11 be placed directly on support jig and with the gluten supporting construction of raft foundation 11
Colligation is fixed.
Occur without accident in order to ensure this construction, need 8 lattice support bodys 14 of design are carried out
Stability Checking, is mainly the stability in the large of support jig and the intensity of each component and stablizes
Property check, it is desirable to the gluten in eight lattice support bodys bottom truck crane 14 and this region supports knot
Structure is welded to connect and is fixed as an entirety, improves holistic resistant behavior.Gluten supporting construction typically uses
Type steel support, bottom uses the 10# channel-section steel pad bottom layer of the reinforcing steel at raft foundation 11 of about 200mm length
On 111；Connecting rod includes being connected to the cross bar between multiple lattice support body 14 and diagonal brace, uses 5#
Angle steel, the gluten supporting construction with reinforcing area is welded to connect, as shown in Figure 6 simultaneously.
4, truck crane is in place
According to spot plane layout drawing, truck crane reaches specific bit and postpones the counterweight on car, chock etc.
Foreign material all unload, foreign material falling from high altitude when preventing tower crane from allocating and transporting truck crane.Tower crane crane arm swings to vapour
The overhead that car hangs, transfers suspension hook, and four sash-line diameter use 14mm, and every maximum bears weight
Reach 20T.
5, utilize tower crane handling truck crane to the surfacing steel bar of raft foundation
(1) lifting point site layout project
Owing to the weight of truck crane is big, in order to reduce the truck crane local pressure to surfacing steel bar 112,
To support backing plate 15 on one layer of the upper berth, lifting point of surfacing steel bar 112, as shown in Figure 5 and Figure 6, be somebody's turn to do
Support backing plate 15 and can use heavy steel plate thick for 15mm, support backing plate 15 subscript with Calx simultaneously
Go out the position of each lattice support body 14 of support jig, it is simple to truck crane is in place.
(2) truck crane colligation point selection
The area of truck crane is big, position of centre of gravity is more difficult determines, four lifting rope colligations of crane hook are at automobile
Four leg location (supporting leg does not stretches out) hung, repeatedly check whether after colligation and meet the requirements.
(3) suspension centre and the center of gravity of truck crane are found out
Dynamic load is increased, it is necessary to find out suspension centre and center of gravity in order to prevent hoisting process truck crane from rocking
After can lift by crane.Tower crane first slowly hoists, and checks that all of wheel of truck crane is the most liftoff.As
Fruit not, is slowly transferred suspension hook, it is judged that deviation of gravity center direction at once, readjusts before and after's lifting rope
Length.Owing to the colligation point of lifting rope is four leg location of truck crane, front leg strut due near headstock,
Center of gravity can offset to front leg strut, and therefore colligation should compare the shorter of front leg strut, just at the lifting rope of rear support leg
Can guarantee that all of wheel is the most liftoff.By regulate lifting rope length, find out truck crane suspension centre and
Center of gravity.
(4) tower crane lifting
After finding out suspension centre, tower crane slowly hoists 300mm, hoisting until suspending after truck crane is liftoff, making
Truck crane slowly remains static.Then, tower crane continues slowly to hoist, overhead after 3m, temporarily
Stop hoisting, simultaneously tower crane amplitude variation trolley setting in motion, make truck crane be transported by 45m to tower crane centre distance
Move 22m position.Last tower crane crane arm starts to swing, until truck crane rests on the upper of lifting point
Sky, slowly transfers until automobile hangs gluten steel plate 300mm, by manual adjustment, makes truck crane
Front and back wheel just with regard to site, is slowly transferred until pressure wheel is on steel plate.
Now, tower crane can't pine hook, site administrator observes the deformation of gluten and stable feelings
After condition, it is ensured that after An Quan, tower crane could pine hook.
6, support jig and the Deformation checking of surfacing steel bar
The quantity of this elevator sidewall reinforcing bar is more, needs just can complete for two days, and therefore truck crane exists
On gluten, residence time is longer.In order to ensure whole hoisting process surfacing steel bar, gluten supporting construction,
The stability of support jig and safety, need to strengthen support jig, the inspection of gluten deformation and prison
Control, the time interval of inspection can not be more than 2 hours every time, and inspection content is:
(1) vertical rod of support jig I-steel with or without deformation or deformation strengthen trend, vertical rod, cross bar,
It is welded with without coming off scene, especially proximate to the moulding bed of elevator side between brace；
(2) trend that the surfacing steel bar that truck crane is pressed strengthens with or without deformation or deformation；
(3) the gluten supporting construction of surfacing steel bar is with or without situations such as song torsion, deformation.
7, truck crane lifting elevator sidewall reinforcing bar
Coordinate shown in Fig. 7, truck crane 16 in place stable after, truck crane opens supporting leg and prepares lifting reinforcing bar,
Four supporting legs to be pressed in like clockwork with regard on site.Elevator sidewall reinforcing bar shape as it can be seen, in
" 7 " font, sidewall reinforcing bar is to install one by one, and lift heavy is little, with car when four supporting legs promote
Take turns the most liftoff being advisable, allow four supporting legs and all wheels stress simultaneously, reduce the face of raft foundation 11
The local pressure of layer reinforcing bar 111.After all of preparation is ready, sidewall reinforcing bar can be proceeded by
The construction of 13, as shown in Figure 7.Lifting rope ties up the turning point at " 7 " font sidewall reinforcing bar 13, hangs
After the sidewall locations of elevator 12, manually adjust spacing and fix with tied silk colligation.
The innovative point of the construction method that the present invention installs elevator sidewall reinforcing bar in raft foundation is as follows:
1) engineering ground is narrow and small, tower crane limited amount, and when tower crane lifting task is heavy, super thick raft plate
Sidewall reinforcing bar uses truck crane to carry out lifting the installation method of reinforcing bar on raft slab muscle, greatly reduces
The reinforcement installation dependency to tower crane；
2) convenient and quick construction, hence it is evident that decrease the set-up time of sidewall reinforcing bar, alleviate work simultaneously
Intensity；
3) the raft plate reinforcing bar binding duration is shortened, it is possible to fulfil underplate concrete ahead of schedule and pour, it is to avoid rainy season
Occur during construction that foundation pit collapse is dangerous；
4) reinforcing bar binding safety coefficient is high, it is to avoid reinforcing bar casualty accident occur.
Above in association with drawings and Examples, the present invention is described in detail, ordinary skill in this area
The present invention can be made many variations example by personnel according to the above description.Thus, some in embodiment is thin
Joint should not constitute limitation of the invention, the present invention by the scope that defines using appended claims as
Protection scope of the present invention.
Claims (10)
1. the construction method installing elevator sidewall reinforcing bar in raft foundation, it is characterised in that
Including step:
The bottom layer of the reinforcing steel of construction raft foundation and surfacing steel bar, and reserve elevator in described raft foundation
Well location is put；And in the described bottom layer of the reinforcing steel at a certain distance from described elevator and described surfacing steel bar
Between support jig is set；
Utilize tower crane that truck crane winches to correspondence to have in the described surfacing steel bar of described support jig；
Described truck crane is utilized to lift the sidewall reinforcing bar of described elevator.
2. the construction party installing elevator sidewall reinforcing bar in raft foundation as claimed in claim 1
Method, it is characterised in that the bottom layer of the reinforcing steel of construction raft foundation and surfacing steel bar, including:
The bottom layer of the reinforcing steel of colligation raft foundation；
Gluten supporting construction is installed on described bottom layer of the reinforcing steel；
Colligation surfacing steel bar in described gluten supporting construction, described surfacing steel bar is at described elevator well location
Put formation concave domain.
3. the construction party installing elevator sidewall reinforcing bar in raft foundation as claimed in claim 2
Method, it is characterised in that in described gluten supporting construction before surfacing steel bar described in colligation, also include:
In the described bottom layer of the reinforcing steel that colligation completes, moulding bed support pads is set；
Support jig is installed on described moulding bed support pads, and utilizes connecting rod by described support jig and institute
State gluten supporting construction to be welded to connect.
4. the construction party installing elevator sidewall reinforcing bar in raft foundation as claimed in claim 3
Method, it is characterised in that: described truck crane include vehicle body, the multiple wheels being positioned at described body bottom and
It is positioned at multiple supporting legs of described vehicle body both sides；Described support jig includes being supported in correspondingly each
The lattice support body of the lower section of described wheel and each described supporting leg, and multiple described lattice support body it
Between connected by described connecting rod.
5. the construction party installing elevator sidewall reinforcing bar in raft foundation as claimed in claim 4
Method, it is characterised in that utilize tower crane to be winched to by truck crane in described surfacing steel bar by following steps:
Pack up the supporting leg of described truck crane, by tower crane lifting rope colligation at the leg location of described truck crane；
Suspension centre and the center of gravity finding out described truck crane is hung, it is ensured that all wheels of described truck crane by examination
Lifting time the most liftoff；
After finding out suspension centre and center of gravity, tower crane lifts by crane described truck crane, and after described truck crane is liftoff
Suspend lifting, make described truck crane remain static；
Tower crane continues to lift by crane described truck crane, and when the liftoff segment distance of described truck crane, suspends
Hang, described truck crane is moved a segment distance to tower crane center position；
Tower crane crane arm starts to swing, and described truck crane winches to the top position of described support jig；
Transfer described automobile to winch to, at described surfacing steel bar one segment distance, debug；
After debugging, continue to transfer described truck crane, make the pressure wheel of described truck crane at described surface layer steel
On muscle；
Put down the supporting leg of described truck crane.
6. the construction party installing elevator sidewall reinforcing bar in raft foundation as claimed in claim 5
Method, it is characterised in that before described truck crane is transferred to described surfacing steel bar, also include:
In described surfacing steel bar, lay supporting pad plate, and at described support backing plate subscript, described support is shown
The position of each lattice support body of frame.
7. the construction party installing elevator sidewall reinforcing bar in raft foundation as claimed in claim 1
Method, it is characterised in that before utilizing described truck crane to lift the sidewall reinforcing bar of described elevator, also wrap
Include: described support jig and described surfacing steel bar are carried out Deformation checking.
8. the construction party installing elevator sidewall reinforcing bar in raft foundation as claimed in claim 1
Method, it is characterised in that utilize described truck crane to lift the sidewall steel of described elevator by following steps
Muscle:
Promoting the supporting leg of described truck crane, the wheel making described truck crane is the most liftoff；
By the sidewall reinforcing bar of root lifting elevator, after winching to the sidewall locations of elevator, manually carry out institute
State the colligation of sidewall reinforcing bar.
9. the construction party installing elevator sidewall reinforcing bar in raft foundation as claimed in claim 8
Method, it is characterised in that also include: after described sidewall reinforcement installation completes, utilizes tower crane by described
Truck crane hangs described support backing plate.
10. the construction party installing elevator sidewall reinforcing bar in raft foundation as claimed in claim 1
Method, it is characterised in that: described support jig is arranged at the position apart from described elevator 10m～20m.
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| CN201610405377.4A CN105970988B (en) | 2016-06-08 | 2016-06-08 | The construction method of elevator sidewall reinforcing bar is installed in raft foundation |
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| CN201610405377.4A CN105970988B (en) | 2016-06-08 | 2016-06-08 | The construction method of elevator sidewall reinforcing bar is installed in raft foundation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110984170A (en) * | 2019-11-25 | 2020-04-10 | 上海水务建设工程有限公司 | Semi-automatic foundation pit steel support installation method and steel support installation auxiliary device |
| CN115030205B (en) * | 2022-06-07 | 2024-04-26 | 上海城建市政工程（集团）有限公司 | Integrated rapid construction method for raft, water collecting well and elevator shaft of deep foundation pit |
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| CN105970988B (en) | 2018-02-06 |
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