CN109137990A - A kind of prefabricated cushion cap of land delay-pour joint sectional type and its production and installation method - Google Patents
A kind of prefabricated cushion cap of land delay-pour joint sectional type and its production and installation method Download PDFInfo
- Publication number
- CN109137990A CN109137990A CN201810789841.3A CN201810789841A CN109137990A CN 109137990 A CN109137990 A CN 109137990A CN 201810789841 A CN201810789841 A CN 201810789841A CN 109137990 A CN109137990 A CN 109137990A
- Authority
- CN
- China
- Prior art keywords
- cushion cap
- piecemeal
- pile foundation
- reinforcing bar
- preformed hole
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/0025—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects with installation or service material, e.g. tubes for electricity or water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0002—Auxiliary parts or elements of the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/16—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes
- B28B7/18—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes the holes passing completely through the article
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a kind of land prefabricated cushion caps of delay-pour joint sectional type, including the first cushion cap piecemeal and the second cushion cap piecemeal, first cushion cap piecemeal and the second cushion cap piecemeal are equipped with several pile foundation preformed holes, pile foundation preformed hole reinforcing bar cage is equipped with around pile foundation preformed hole, it is additionally provided with several pile foundation connection reinforcing bars, further include link block, several grout sleeves are equipped in link block, the both ends of each grout sleeve are connected with the first connection reinforcing bar and the second connection reinforcing bar.This land prefabricated cushion cap of delay-pour joint sectional type, pass through the first connection reinforcing bar of grout sleeve connection and the second connection reinforcing bar, it connects the first cushion cap piecemeal and the second cushion cap piecemeal to form prefabricated cushion cap entirety by link block, stable structure is reliable, first cushion cap piecemeal and second cushion cap piecemeal Prefabrication in factory, accelerate the progress of bridge construction, prefabricated cushion cap is divided into the first cushion cap piecemeal and the second cushion cap piecemeal, guarantee the construction safety of transport and lifting, the invention is used for land cushion cap technical field.
Description
Technical field
The present invention relates to land cushion cap technical field, more particularly to a kind of prefabricated cushion cap of land delay-pour joint sectional type and
It is produced and installation method.
Background technique
Traditional land cushion cap uses cast in situs Construction Mode, i.e. excavation pit → arrangement pile crown reinforcing bar → construction cushion coat
→ binding cushion cap reinforcing bar → vertical reinforcing template → pours cushion cap concrete → maintenance → demoulding.Bearing platform construction under cast-in-place mode exists
Following technical disadvantages: (1) construction quality of concrete is more difficult to control, is easy to appear and runs the common quality defects such as mould, spillage, leakage, applies
Work speed is slow, influences bridge superstructure construction speed；(2) waste of raw materials such as cement, steel, rubble are serious, water, electricity, gas
Usage amount is big, and bracket, template, fastener etc. are easily lost, and maintenance status is difficult to ensure；(3) construction personnel needed is more, labour
Intensity is larger, and construction environment is big by natural environment influence, and under sleet, high temperature, cold snap, bearing platform construction is impacted, worker
Work situation is poor；(4) surrounding enviroment are easily caused noise pollution by a large amount of concrete cast-in-situ construction, generate a large amount of building
Construction rubbish.
Summary of the invention
The purpose of the present invention is to provide a kind of prefabricated cushion cap of land delay-pour joint sectional type and its production and installation method,
Raw material and manual labor are saved, is accelerated construction progress.
The technical solution used in the present invention is:
A kind of land prefabricated cushion cap of delay-pour joint sectional type, including the first cushion cap piecemeal and the second cushion cap piecemeal, first holds
Platform piecemeal and the second cushion cap piecemeal are equipped with several pile foundation preformed holes, are equipped with pile foundation preformed hole reinforcing bar around pile foundation preformed hole
Cage passes through pile foundation preformed hole inner wall and is equipped with several pile foundations connection reinforcing bar, further includes the first cushion cap piecemeal of connection and the second cushion cap point
The link block of block, link block is interior to be equipped with several grout sleeves, and one end of each grout sleeve is connected with the first cushion cap piecemeal of insertion
First connection reinforcing bar and the other end are connected with the second connection reinforcing bar of the second cushion cap piecemeal of insertion.
A kind of production of the land prefabricated cushion cap of delay-pour joint sectional type and installation method, comprise the following production steps that
A, processing and fabricating the first cushion cap piecemeal and the bed die of the second cushion cap piecemeal, 4 side forms, several columnar stakes respectively
Several side openings are opened up on side form on the inside of base preformed hole template, the first cushion cap piecemeal and the second cushion cap piecemeal, pile foundation reserves casement
Several through-holes are opened up on the wall surface of plate；And the cushion cap steel reinforcement cage of the first cushion cap piecemeal and the second cushion cap piecemeal, pile foundation are assembled respectively
Preformed hole reinforcing bar cage；
B, the bed die of the first cushion cap piecemeal and the second cushion cap piecemeal is fixed in installation, and cushion cap steel reinforcement cage, pile foundation preformed hole are mended
In on corresponding bed die, pile foundation preformed hole template is installed on pile foundation preformed hole for strong steel reinforcement cage, side form, pile foundation preformed hole formwork hoisting
In reinforcing bar cage；
C, several first connection reinforcing bars of each side opening installation on the side form on the inside of the first cushion cap piecemeal；It is held across second
Several second connection reinforcing bars of each side opening installation on side form on the inside of platform piecemeal；
D, the through-hole in pile foundation preformed hole template is horizontally inserted into pile foundation connection reinforcing bar, and pile foundation connection reinforcing bar one end is protruded into
In cushion cap steel reinforcement cage, the other end is stayed in pile foundation preformed hole template；
E, casting concrete conserves concrete after the completion of pouring, and removes side form and pile foundation preformed hole template；
Further include following installation steps:
F, excavation of foundation pit and the base processing of installed position are carried out；
G, the first cushion cap piecemeal of lifting makes in pile foundation insertion pile foundation preformed hole in installation site, wears on the first connection reinforcing bar
Enter grout sleeve, then lift the second cushion cap piecemeal to make pile foundation be inserted into pile foundation preformed hole in installation site, grout sleeve is slided to the
Grouting material is injected from the injected hole of every grout sleeve in the center of one connection reinforcing bar and the second connection reinforcing bar；
H, link block side form is installed, and casting concrete, the first cushion cap piecemeal and the second cushion cap piecemeal are connected to be formed it is pre-
Cushion cap processed is whole；
I, stirrup is bound from bottom to top in pile foundation preformed hole, casting concrete is to prefabricated cushion cap top surface, in prefabricated cushion cap
Top is installed by pier stud；
Production stage and installation steps can carry out simultaneously.
It is further used as the improvement of technical solution of the present invention, in step f, to the first cushion cap piecemeal and the second cushion cap piecemeal
Installation site is cleared up, and one layer of rubble is laid in fitting limit and is tamped, and weak part, fills out compacting using changing in ground
Method reinforcement pours one layer of blinding concrete within 20cm on the outside of fitting limit, and with plate vibrator vibration tamp, protects
The flatness for demonstrate,proving bed course basis is not more than 2mm.
It is further used as the improvement of technical solution of the present invention, in step f, after the completion of excavation of foundation pit and base processing, and label
The center and pile foundation center of the installation site of first cushion cap piecemeal and the second cushion cap piecemeal out, and draw the first cushion cap piecemeal and
Four side sidelines of two cushion cap piecemeal installation sites and the round edge line of pile foundation.
It is further used as the improvement of technical solution of the present invention, to the first cushion cap piecemeal and the second cushion cap piecemeal in step g
Lifting uses gantry crane, installs two walking tracks in installation site two sides, two dragons are installed between two walking tracks
Gantry crane machine, two gantry cranes pass through what is drawn above track handling the first cushion cap piecemeal or the second cushion cap piecemeal to pile foundation
Four sides sideline and pile foundation round edge line adjust the position of the first cushion cap piecemeal or the second cushion cap piecemeal, decentralization to and ground distance
10cm, pause decentralization, checks the deviation situation on the first cushion cap piecemeal or four side of the second cushion cap piecemeal and the four edges line drawn, really
Recognize errorless rear decentralization.
It is further used as the improvement of technical solution of the present invention, and the installation of pier stud uses Precast Pier Columns mode in step i,
The vertical pier stud for connecting with Precast Pier Columns is installed in pile foundation preformed hole and connects reinforcing bar, then casting concrete, then is pacified
Fill Precast Pier Columns.
It is further used as the improvement of technical solution of the present invention, and the installation of pier stud uses cast-in-place pier stud mode in step i,
Foot stall steel muscle cage and Pier Formwork are assembled above prefabricated cushion cap, then pour coagulation from bottom to top from the bottom of pile foundation preformed hole
At the top of soil to Pier Formwork.
It is further used as the improvement of technical solution of the present invention, in step a, selects prefabricated place, pre-fabricated factory is built, to pre-
Place processed integrally carries out positioning division, determines template processing assembling station, reinforcing bar assembling station, Prefabrication station, maintenance storage
Deposit station.
It is further used as the improvement of technical solution of the present invention, and pile foundation preformed hole template includes several templates mutually spliced point
Block, in step a, through-hole is opened in the stitching portion of each template piecemeal.
It is further used as the improvement of technical solution of the present invention, pile foundation preformed hole reinforcing bar cage and pile foundation preformed hole template it
Between cushion block is installed.
Beneficial effects of the present invention: this land prefabricated cushion cap of delay-pour joint sectional type is connected by grout sleeve connection first
Reinforcing bar and the second connection reinforcing bar are connect, connecting the first cushion cap piecemeal and the second cushion cap piecemeal by link block, to form prefabricated cushion cap whole
Body, stable structure is reliable, the first cushion cap piecemeal and second cushion cap piecemeal Prefabrication in factory, thus by traditional bearing platform construction
Most of work be transferred to factory's completion, improve the pouring construction quality of concrete, save raw material and hand labor
Power, and the progress of bridge construction is accelerated, prefabricated cushion cap is divided into the first cushion cap piecemeal and the second cushion cap piecemeal, is conducive to reduce
Transport and hoisting process in weight and size, guarantee transport and lifting go on smoothly and construction safety.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings:
Fig. 1 is the overall structure diagram of the prefabricated cushion cap of the embodiment of the present invention；
Fig. 2 is the top view of the prefabricated cushion cap of the embodiment of the present invention；
Fig. 3 is the side view of the prefabricated cushion cap of the embodiment of the present invention；
Fig. 4 is the structural schematic diagram of the first cushion cap piecemeal of the embodiment of the present invention；
Fig. 5 is the production procedure block diagram of the first cushion cap piecemeal of the embodiment of the present invention and the second cushion cap piecemeal；
Fig. 6 is the installation procedure block diagram of the first cushion cap piecemeal of the embodiment of the present invention and the second cushion cap piecemeal；
Fig. 7 is the lifting schematic diagram of the first cushion cap piecemeal of the embodiment of the present invention and the second cushion cap piecemeal；
Fig. 8 is the lifting schematic diagram of the first cushion cap piecemeal of the embodiment of the present invention and the second cushion cap piecemeal；
Fig. 9 is the structural schematic diagram of grout sleeve of the embodiment of the present invention；
Figure 10 is the planar structure schematic diagram of grout sleeve of the embodiment of the present invention；
Figure 11 is the top view of pile foundation of embodiment of the present invention preformed hole reinforcing bar cage and pile foundation preformed hole template；
Figure 12 is the structural schematic diagram of pile foundation preformed hole template of the embodiment of the present invention；
Figure 13 is the expanded view of pile foundation preformed hole template of the embodiment of the present invention.
Specific embodiment
Referring to Fig.1~Figure 13, the present invention are a kind of land prefabricated cushion cap of delay-pour joint sectional type, including the first cushion cap piecemeal
11 and the second cushion cap piecemeal 12, the first cushion cap piecemeal 11 and the second cushion cap piecemeal 12 be equipped with several pile foundation preformed holes 2, surround stake
Base preformed hole 2 is equipped with pile foundation preformed hole reinforcing bar cage 5, passes through 2 inner wall of pile foundation preformed hole and is equipped with several pile foundations connection reinforcing bar 3,
Further include the link block 9 for connecting the first cushion cap piecemeal 11 and the second cushion cap piecemeal 12, is equipped with several grout sleeves in link block 9
91, one end of each grout sleeve 91 is connected with the first connection reinforcing bar 111 and the other end connection of the first cushion cap piecemeal 11 of insertion
There is the second connection reinforcing bar 121 of the second cushion cap piecemeal 12 of insertion.
This land prefabricated cushion cap of delay-pour joint sectional type, first prefabricated first cushion cap piecemeal 11 and the second cushion cap piecemeal respectively
12, then lifting the first cushion cap piecemeal 11 and the second cushion cap piecemeal 12 is installed on it in pile foundation 8, is connected by grout sleeve 91
First connection reinforcing bar 111 and the second connection reinforcing bar 121, then pour link block 9 and make the first cushion cap piecemeal 11 and the second cushion cap piecemeal
It is whole that 12 connections form prefabricated cushion cap 1.
First cushion cap piecemeal 11 and the second Prefabrication in factory of cushion cap piecemeal 12, thus by the big of traditional bearing platform construction
Part work has been transferred to factory's completion, improves the pouring construction quality of concrete, saves raw material and manual labor, and
Accelerate the progress of bridge construction.Prefabricated cushion cap 1 is divided into the first cushion cap piecemeal 11 and the second cushion cap piecemeal 12, is conducive to reduce
Transport and hoisting process in weight and size, guarantee transport and lifting go on smoothly and construction safety.It is reserved by pile foundation
Hole 2, pile foundation preformed hole reinforcing bar cage 5 and pile foundation connection reinforcing bar 3 realize effective connection of prefabricated cushion cap 1 and pile foundation 8, guarantee pre-
The installation of cushion cap 1 processed is fixed reliable.
A kind of production of the land prefabricated cushion cap of delay-pour joint sectional type and installation method, comprise the following production steps that
A1, the prefabricated place of selection, build pre-fabricated factory, integrally carry out positioning division to prefabricated place, determine that template is processed
Station, reinforcing bar assembling station, Prefabrication station, maintenance storage station are assembled, sub-station produces prefabricated first cushion cap piecemeal 11
With the second cushion cap piecemeal 12, be conducive to the orderly progress and the guarantee quality of production of production.
A2, it is processed on assembling station in template and processes template, respectively the first cushion cap of processing and fabricating piecemeal 11 and the second cushion cap
The bed die of piecemeal 12,4 side forms, several columnar pile foundation preformed hole templates 4, the first cushion cap piecemeal 11 and the second cushion cap piecemeal
Several side openings are opened up on the side form of 12 insides, open up several through-holes on the wall surface of pile foundation preformed hole template 4；Station is assembled in reinforcing bar
Upper banding steel cage assembles the cushion cap steel reinforcement cage of the first cushion cap piecemeal 11 and the second cushion cap piecemeal 12 respectively, pile foundation preformed hole is mended
Strong steel reinforcement cage 5.
B, the bed die of the first cushion cap piecemeal 11 and the second cushion cap piecemeal 12 is mounted on Prefabrication station, will be held
Platform steel reinforcement cage, pile foundation preformed hole reinforcing bar cage 5, side form, pile foundation preformed hole template 4 are lifted on corresponding bed die, and pile foundation is pre-
Template of boxing out 4 is installed in pile foundation preformed hole reinforcing bar cage 5, as shown in figure 11.
C, several first connection reinforcing bars 111 of each side opening installation on the side form of 11 inside of the first cushion cap piecemeal；It passes through
Several second connection reinforcing bars 121 of each side opening installation on the side form of second cushion cap piecemeal, 12 inside.
D, the through-hole in pile foundation preformed hole template 4 is horizontally inserted into pile foundation connection reinforcing bar 3, and pile foundation connects 3 one end of reinforcing bar
It protrudes into cushion cap steel reinforcement cage, the other end stays in pile foundation preformed hole template 4.Pile foundation preformed hole reinforcing bar cage 5 is connected with pile foundation
Reinforcing bar 3 ensure that being reliably connected for subsequent first cushion cap piecemeal 11 and the second cushion cap piecemeal 12 and pile foundation 8, to guarantee to top
The secure support of pier stud.
E, concreting in lifts wants symmetrical casting concrete on 4 periphery of pile foundation preformed hole template, prevents pile foundation preformed hole
Sidesway occurs for template 4, and the first cushion cap piecemeal 11 and the second cushion cap piecemeal 12, flat-pushing first cushion cap piecemeal are obtained after the completion of pouring
11 and second cushion cap piecemeal 12 to maintenance store station, concrete is conserved, after conserve 12 hours under room temperature, dismounting side form
With pile foundation preformed hole template 4, various defects are repaired, continue maintenance to 85% or more intensity.After removing pile foundation preformed hole template 4,
The pile foundation preformed hole 2 connecting with pile foundation 8 is formed at pile foundation preformed hole template 4.
The above are the Prefabrication step of the first cushion cap piecemeal 11 and the second cushion cap piecemeal 12, the first cushion cap piecemeals 11 and
Transport is installed to building site after the completion of the production of two cushion cap piecemeals 12, further includes installation steps.First cushion cap piecemeal 11 is being installed
While with the second cushion cap piecemeal 12, production, i.e. the first cushion cap piecemeal 11 and the second cushion cap point can proceed in pre-fabricated factory
The production of block 12 and installation steps can carry out simultaneously, greatly speed up construction speed.Installation steps are as follows:
F1, the excavation of foundation pit for carrying out installed position and base processing, to the first cushion cap piecemeal 11 and the second cushion cap piecemeal
12 installation site is cleared up, and one layer of rubble is laid in fitting limit and is tamped, and weak part, fills out rammer using changing in ground
Real method reinforcement pours one layer of blinding concrete within 20cm on the outside of fitting limit, and with plate vibrator vibro-rammer
It is real, guarantee that the flatness on bed course basis is not more than 2mm.
F2, mark the first cushion cap piecemeal 11 and the second cushion cap piecemeal 12 installation site 8 center of center and pile foundation, and
Draw four side sidelines of 12 installation site of the first cushion cap piecemeal 11 and the second cushion cap piecemeal and the round edge line of pile foundation 8.
G1, the first cushion cap piecemeal 11 and the second cushion cap piecemeal 12 are lifted, according to the first cushion cap piecemeal 11 and second
The dimension and weight of cushion cap piecemeal 12 is cooperated using single machine large-tonnage truck crane or crawler crane or two-shipper truck crane or crawler crane,
If place is more smooth, using wire center as axis, held first using the scheme that gantry crane 72 lifts along line direction
Platform piecemeal 11 and 12 installation site two sides of the second cushion cap piecemeal are laid with the two walking tracks 71 in left and right, two walking tracks 71 it
Between install two gantry cranes 72, as shown in Figure 7.
G2, the first cushion cap piecemeal 11 of lifting are inserted into pile foundation 8 in pile foundation preformed hole 2 in installation site, concrete operations are as follows: two
A gantry crane 72 wirerope or hanging belt the same by four root long degree, material, catch on 11 4 jiaos of the first cushion cap piecemeal
Pre-buried gib headed bolt hangs nail, along walking 71 the first cushion cap of handling piecemeal 11 of track to 8 top of pile foundation, slowly transfers, during which not
The position all around of the first cushion cap piecemeal 11 of disconnected adjustment corresponds pile foundation preformed hole 2 and the pile crown of pile foundation 8, and pile foundation 8 is inserted
Enter in pile foundation preformed hole 2.The position of the first cushion cap piecemeal 11, decentralization are adjusted by the four side sidelines drawn and 8 round edge line of pile foundation
When cushion cap is to ground distance 10cm, the deviation on 11 4 side of the first cushion cap piecemeal and the four edges line drawn is checked in pause decentralization
Situation confirms errorless rear decentralization, if error is larger, can lift by crane the first cushion cap piecemeal 11 again, transfers installation after adjusting again.
G3, grout sleeve 91 is penetrated on the first connection reinforcing bar 111 of the first cushion cap piecemeal 11.
G4, the second cushion cap piecemeal 12 of lifting make pile foundation 8 be inserted into pile foundation preformed hole 2, the second cushion cap piecemeal 12 in installation site
Lifting operation it is identical with the first cushion cap piecemeal 11, the first cushion cap piecemeal 11 and the second cushion cap piecemeal 12 is opposite installs.
G5, the center that grout sleeve 91 is slided to the first connection reinforcing bar 111 and the second connection reinforcing bar 121, are in the milk from every
The injected hole 911 of sleeve 91 injects grouting material, until closing injected hole 911 and plasma discharge after uniform grouting material is discharged in plasma discharge hole 912
Hole 912.
H, after grouting material set strength reaches design requirement intensity, link block side form is installed, then casting concrete shape
At link block 9, the first cushion cap piecemeal 11 is connected by link block 9 and the second cushion cap piecemeal 12 forms prefabricated cushion cap 1 integrally, first
Connection reinforcing bar 111, second connect reinforcing bar 121 and grout sleeve 91 ensure that the first cushion cap piecemeal 11 and the second cushion cap piecemeal 12 with
The bonding strength of link block 9.Prefabricated cushion cap 1 is divided into the first cushion cap piecemeal 11 and the second cushion cap piecemeal 12, is conducive to reduce fortune
Weight and size in defeated and hoisting process, guarantee transport and lifting go on smoothly and construction safety.Link block 9 pours completion
Afterwards, layering the first cushion cap piecemeal 11 of symmetrical backfill and 12 periphery foundation pit of the second cushion cap piecemeal, and successively tamp.
The above are the liftings of the first cushion cap piecemeal 11 and the second cushion cap piecemeal 12, need to be in pile foundation preformed hole 2 after the completion of lifting
Interior casting concrete is to be connected and fixed prefabricated cushion cap 1 and pile foundation 8, when the pier stud for installing prefabricated 1 top of cushion cap is applied using different
When work method, the casting method of 2 inner concrete of pile foundation preformed hole is different, following steps:
When the installation of i1, pier stud use Precast Pier Columns mode, installed in pile foundation preformed hole 2 it is vertical for it is pre-
The pier stud of pier stud connection processed connects reinforcing bar, binds stirrup from bottom to top to prefabricated 1 top surface of cushion cap, installs fixed pier stud and connect reinforcing bar
Locator, then concreting in lifts to prefabricated 1 top surface of cushion cap, then install Precast Pier Columns.
When the installation of i2, pier stud use cast-in-place pier stud mode, i.e. cast in situs pier stud, on 2 periphery of pile foundation preformed hole,
3cm thickness Pier Formwork mounting seat is laid with high grade mortar levelling, it is ensured that horizontal, high grade mortar inner edge must not invade pier stud
Inside template, in order to avoid cause pier stud necking down.On prefabricated cushion cap 1, steel pipe support is erected, binds pier stud steel reinforcement cage, it is pre- in pile foundation
It boxes out the stirrup of from coil to coil installation from bottom to top in 2, then merogenesis lifts Pier Formwork.Finally since 2 bottom of pile foundation preformed hole, from
On down, the casting concrete by the way of tumbling barrel placement layer by layer, until at the top of Pier Formwork.Prefabricated cushion cap 1 and pier stud coagulation
At native label variation, i.e., the interface of prefabricated cushion cap 1 and pier stud can be after the concrete initial set in pile foundation preformed hole 2, then pours
Pier stud concrete.After the completion of pouring after curing concrete to job specfication proof strength, Pier Formwork is removed, next peace is arrived in circulation
Fill station.The construction technology poured together with pier stud using pile foundation preformed hole 2 guarantees the company of pile foundation 8, prefabricated cushion cap 1 and pier stud
It connects reliably, to guarantee integrally-built stability and the secure support to bridge.
As a preferred embodiment of the present invention, as shown in Figure 12 and Figure 13, pile foundation preformed hole template 4 includes several mutual
The template piecemeal 41 of splicing, in step a2, through-hole is opened in the stitching portion of each template piecemeal 41, uses spiral shell between each template piecemeal 41
It tethers and connects.Pile foundation preformed hole template 4 uses block design, so that installation and removal are more convenient.
As a preferred embodiment of the present invention, pacify between pile foundation preformed hole reinforcing bar cage 5 and pile foundation preformed hole template 4
Equipped with cushion block 6, to protect pile foundation preformed hole reinforcing bar cage 5.
As a preferred embodiment of the present invention, the aperture of pile foundation preformed hole template 4 is slightly larger than the diameter of pile foundation 8, pile foundation
The quantity of preformed hole template 4 and pile foundation 8 is 4.Pile foundation preformed hole reinforcing bar cage 5 adds the sample of stirrup using lengthways main steel bar
Formula, the big 2-3cm of 8 radius of radius ratio pile foundation.
Have the advantage that (1) first by 11 He of the first cushion cap piecemeal using this land prefabricated cushion cap of delay-pour joint sectional type
Second cushion cap piecemeal 12 is pre-formed, then handling is installed in place, and most of work of traditional bearing platform construction is transferred in factory
It completes, accelerates bridge lower part engineering construction progress, realize industrialized production and installation；(2) prefabricated cushion cap 1 is divided into first to hold
Platform piecemeal 11 and the second cushion cap piecemeal 12 guarantee that construction is reliable and safety, solve large-scale, the prefabricated cushion cap 1 of ultra-large type lifting,
Transport, installation problem, have reached factory, scene is taken into account, and reduce the load carrying behaviour requirement to lifting, transporting equipment；(3) it reduces
The construction qualities common faults such as race mould, spillage under the cast-in-place mode of reinforced concrete pile cap tradition, improve reinforced concrete pile cap
Construction quality；(4) engineering generally saves the construction materials such as cement, reinforcing bar, rubble, saves water, electricity, gas resource, mentions
The utilization rate of the various circulation materials such as high trestle, template, fastener, reduces project inputs and cost；(5) artificial make is reduced
Dosage reduces labor intensity of workers, a part of site operation personnel is switched to millworker, fundamentally ensure the body of worker
And physical and mental health, improve the construction operation environment of worker；(6) noise effect in construction is reduced and reduced, is reduced
The generation of construction rubbish.
Certainly, the invention is not limited to above embodiment, and those skilled in the art are without prejudice to originally
Equivalent modifications or replacement can be also made under the premise of spirit, these equivalent variation or replacement are all contained in the application right
It is required that in limited range.
Claims (10)
1. a kind of land prefabricated cushion cap of delay-pour joint sectional type, it is characterised in that: held including the first cushion cap piecemeal (11) and second
Platform piecemeal (12), the first cushion cap piecemeal (11) and the second cushion cap piecemeal (12) are equipped with several pile foundation preformed holes (2), surround
The pile foundation preformed hole (2) is equipped with pile foundation preformed hole reinforcing bar cage (5), passes through the pile foundation preformed hole (2) if inner wall is equipped with
Dry pile foundation connection reinforcing bar (3), further includes the link block for connecting the first cushion cap piecemeal (11) and the second cushion cap piecemeal (12)
(9), several grout sleeves (91) are equipped in the link block (9), one end of each grout sleeve (91) is connected with insertion institute
The first connection reinforcing bar (111) and the other end for stating the first cushion cap piecemeal (11) are connected with insertion the second cushion cap piecemeal (12)
Second connection reinforcing bar (121).
2. production and the installation method of a kind of land prefabricated cushion cap of delay-pour joint sectional type, which is characterized in that including following production
Step:
A, bed die, 4 side forms, several cylindrical shapes of difference the first cushion cap of processing and fabricating piecemeal (11) and the second cushion cap piecemeal (12)
Pile foundation preformed hole template (4), the first cushion cap piecemeal (11) and the second cushion cap piecemeal (12) if on the inside of side form on open up dry side
Hole opens up several through-holes on the wall surface of pile foundation preformed hole template (4)；And the first cushion cap piecemeal (11) and the second cushion cap are assembled respectively
Cushion cap steel reinforcement cage, the pile foundation preformed hole reinforcing bar cage (5) of piecemeal (12)；
B, the bed die of the first cushion cap piecemeal (11) and the second cushion cap piecemeal (12) is fixed in installation, and cushion cap steel reinforcement cage, pile foundation are reserved
Hole reinforcing bar cage (5), side form, pile foundation preformed hole template (4) are lifted on corresponding bed die, pile foundation preformed hole template (4) peace
Loaded in pile foundation preformed hole reinforcing bar cage (5)；
C, several first connections reinforcing bar (111) of each side opening installation on the side form on the inside of the first cushion cap piecemeal (11) are passed through；It passes through
Several second connections reinforcing bar (121) of each side opening installation on side form on the inside of second cushion cap piecemeal (12)；
D, it passes through the through-hole in pile foundation preformed hole template (4) and is horizontally inserted into pile foundation connection reinforcing bar (3), pile foundation connects reinforcing bar (3) one
End is protruded into cushion cap steel reinforcement cage, and the other end stays in pile foundation preformed hole template (4)；
E, casting concrete conserves concrete after the completion of pouring, and removes side form and pile foundation preformed hole template (4)；
Further include following installation steps:
F, excavation of foundation pit and the base processing of installed position are carried out；
G, the first cushion cap piecemeal (11) of lifting makes in pile foundation (8) insertion pile foundation preformed hole (2) in installation site, connects steel first
Grout sleeve (91) are penetrated on muscle (111), then lift the second cushion cap piecemeal (12) to keep pile foundation (8) insertion pile foundation pre- in installation site
It boxes out (2), grout sleeve (91) is slided to the center of the first connection reinforcing bar (111) and the second connection reinforcing bar (121), is filled from every
The injected hole (911) for starching sleeve (91) injects grouting material；
H, link block side form, and casting concrete are installed, the first cushion cap piecemeal (11) and the second cushion cap piecemeal (12) are connected into shape
It is whole at prefabricated cushion cap (1)；
I, stirrup is bound from bottom to top in pile foundation preformed hole (2), casting concrete is held to prefabricated cushion cap (1) top surface prefabricated
Pier stud is installed above platform (1)；
The production stage and installation steps can carry out simultaneously.
3. the production of the land prefabricated cushion cap of delay-pour joint sectional type according to claim 2 and installation method, feature exist
In: in the step f, the installation site of the first cushion cap piecemeal (11) and the second cushion cap piecemeal (12) is cleared up, is being installed
It is laid with one layer of rubble in range simultaneously to tamp, weak part in ground, using changing the method reinforcement for filling out compacting, on the outside of fitting limit
Within 20cm, one layer of blinding concrete is poured, and with plate vibrator vibration tamp, guarantee that the flatness on bed course basis is not more than
2mm。
4. the production of the land prefabricated cushion cap of delay-pour joint sectional type according to claim 2 and installation method, feature exist
In: in the step f, after the completion of excavation of foundation pit and base processing, mark the first cushion cap piecemeal (11) and the second cushion cap piecemeal
(12) center of installation site and pile foundation (8) center, and draw the first cushion cap piecemeal (11) and the second cushion cap piecemeal (12) peace
Four side sidelines of holding position and the round edge line of pile foundation (8).
5. the production of the land prefabricated cushion cap of delay-pour joint sectional type according to claim 4 and installation method, feature exist
In: gantry crane (72) are used to the lifting of the first cushion cap piecemeal (11) and the second cushion cap piecemeal (12) in the step g, are being pacified
Two walking tracks (71) are installed in holding position two sides, two gantry cranes (72) of installation between two walking tracks (71), and two
A gantry crane (72) passes through above track handling the first cushion cap piecemeal (11) or the second cushion cap piecemeal (12) to pile foundation (8)
The four side sidelines drawn and pile foundation (8) round edge line adjust the position of the first cushion cap piecemeal (11) or the second cushion cap piecemeal (12), under
Put to ground distance 10cm, pause decentralization checks the first cushion cap piecemeal (11) or (12) four side of the second cushion cap piecemeal and draws
Four edges line deviation situation, confirm it is errorless after decentralization.
6. the production of the land prefabricated cushion cap of delay-pour joint sectional type according to claim 2 and installation method, feature exist
In: the installation of pier stud uses Precast Pier Columns mode in the step i, and installation is vertical in pile foundation preformed hole (2) is used for
The pier stud connecting with Precast Pier Columns connects reinforcing bar, then casting concrete, then installs Precast Pier Columns.
7. the production of the land prefabricated cushion cap of delay-pour joint sectional type according to claim 2 and installation method, feature exist
In: the installation of pier stud uses cast-in-place pier stud mode in the step i, and foot stall steel muscle cage is assembled above prefabricated cushion cap (1)
And Pier Formwork, then at the top of the bottom of pile foundation preformed hole (2) from bottom to top casting concrete to Pier Formwork.
8. the production of the land prefabricated cushion cap of delay-pour joint sectional type according to claim 2 and installation method, feature exist
In: in the step a, prefabricated place is selected, pre-fabricated factory is built, positioning division is integrally carried out to prefabricated place, determines template
Processing assembling station, reinforcing bar assembling station, Prefabrication station, maintenance storage station.
9. the production of the land prefabricated cushion cap of delay-pour joint sectional type according to claim 2 and installation method, feature exist
It include several template piecemeals (41) mutually spliced in: the pile foundation preformed hole template (4), in the step a, through-hole is opened in
The stitching portion of each template piecemeal (41).
10. the production of the land prefabricated cushion cap of delay-pour joint sectional type according to claim 2 and installation method, feature exist
In: it is equipped between pile foundation preformed hole reinforcing bar cage (5) and pile foundation preformed hole template (4) cushion block (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810789841.3A CN109137990A (en) | 2018-07-18 | 2018-07-18 | A kind of prefabricated cushion cap of land delay-pour joint sectional type and its production and installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810789841.3A CN109137990A (en) | 2018-07-18 | 2018-07-18 | A kind of prefabricated cushion cap of land delay-pour joint sectional type and its production and installation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109137990A true CN109137990A (en) | 2019-01-04 |
Family
ID=64801043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810789841.3A Pending CN109137990A (en) | 2018-07-18 | 2018-07-18 | A kind of prefabricated cushion cap of land delay-pour joint sectional type and its production and installation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109137990A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110202690A (en) * | 2019-07-22 | 2019-09-06 | 浙江省交通规划设计研究院有限公司 | A kind of prefabricated cushion cap construction of two columned pier and its construction method |
| CN111002462A (en) * | 2019-07-19 | 2020-04-14 | 中国二十冶集团有限公司 | Processing method of reinforcing through-length steel bar at bottom of prefabricated overlapped wallboard |
| CN111851564A (en) * | 2020-06-29 | 2020-10-30 | 中国国家铁路集团有限公司 | Spliced bearing platform plate structure connected with pile foundation and construction method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476326A (en) * | 2009-01-23 | 2009-07-08 | 广州市市政集团有限公司 | Bearing platform prefabrication and construction method |
| CN201981547U (en) * | 2011-02-09 | 2011-09-21 | 中交第四航务工程勘探设计院有限公司 | Above-water bearing platform structure combined precasting installation with cast-in-place |
| CN204456162U (en) * | 2015-02-12 | 2015-07-08 | 江苏建院营造有限公司 | A kind of pulling-resistant type prefabricated tubular pile be connected with cushion cap |
| CN105970987A (en) * | 2016-06-22 | 2016-09-28 | 山东明达建筑科技有限公司 | Assembled construction prefabricated foundation |
| CN206987200U (en) * | 2016-12-28 | 2018-02-09 | 中冶建筑研究总院有限公司 | A kind of short grout sleeve of bar connecting |
| CN207017294U (en) * | 2017-08-04 | 2018-02-16 | 上海宝冶集团有限公司 | Equipment anchor bolt buries the construction tool of reserving hole |
| CN207240442U (en) * | 2017-08-11 | 2018-04-17 | 湖南中铁五新钢模有限责任公司 | Grout sleeve positioning mold is used in a kind of prefabricated components main reinforcement connection |
-
2018
- 2018-07-18 CN CN201810789841.3A patent/CN109137990A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476326A (en) * | 2009-01-23 | 2009-07-08 | 广州市市政集团有限公司 | Bearing platform prefabrication and construction method |
| CN201981547U (en) * | 2011-02-09 | 2011-09-21 | 中交第四航务工程勘探设计院有限公司 | Above-water bearing platform structure combined precasting installation with cast-in-place |
| CN204456162U (en) * | 2015-02-12 | 2015-07-08 | 江苏建院营造有限公司 | A kind of pulling-resistant type prefabricated tubular pile be connected with cushion cap |
| CN105970987A (en) * | 2016-06-22 | 2016-09-28 | 山东明达建筑科技有限公司 | Assembled construction prefabricated foundation |
| CN206987200U (en) * | 2016-12-28 | 2018-02-09 | 中冶建筑研究总院有限公司 | A kind of short grout sleeve of bar connecting |
| CN207017294U (en) * | 2017-08-04 | 2018-02-16 | 上海宝冶集团有限公司 | Equipment anchor bolt buries the construction tool of reserving hole |
| CN207240442U (en) * | 2017-08-11 | 2018-04-17 | 湖南中铁五新钢模有限责任公司 | Grout sleeve positioning mold is used in a kind of prefabricated components main reinforcement connection |
Non-Patent Citations (3)
| Title |
|---|
| 中南建筑设计院股份有限公司: "《建筑工程设计文件编制深度规定》", 31 May 2017, 中国建材工业出版社 * |
| 欧震修: "《建筑工程施工监理手册（第二版）》", 31 May 2001, 中国建筑工业出版社 * |
| 罗建华等: "《桥梁施工技术》", 31 August 2009, 西南交通大学出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111002462A (en) * | 2019-07-19 | 2020-04-14 | 中国二十冶集团有限公司 | Processing method of reinforcing through-length steel bar at bottom of prefabricated overlapped wallboard |
| CN110202690A (en) * | 2019-07-22 | 2019-09-06 | 浙江省交通规划设计研究院有限公司 | A kind of prefabricated cushion cap construction of two columned pier and its construction method |
| CN111851564A (en) * | 2020-06-29 | 2020-10-30 | 中国国家铁路集团有限公司 | Spliced bearing platform plate structure connected with pile foundation and construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106120568B (en) | The construction method of cross a river Main Bridge bridge pier secondary locking temporary consolidation structure | |
| CN111119059B (en) | Ultrahigh composite support system for high-pier cast-in-place box girder and construction method | |
| CN107419802A (en) | A kind of Precast Concrete Frame and construction method | |
| CN111535197B (en) | Pier column construction method | |
| CN109137990A (en) | A kind of prefabricated cushion cap of land delay-pour joint sectional type and its production and installation method | |
| CN107338801B (en) | Prestressing force assembled Complex retaining wall structure and construction method | |
| CN109972519B (en) | Construction method of prefabricated hollow pier installation structure | |
| CN110219667B (en) | Tunnel inverted arch and inverted arch filling layer substituted steel-concrete combined structure and construction process | |
| CN208072415U (en) | Deep foundation pit reinforced concrete support part changes structure | |
| CN109083184A (en) | A kind of prefabricated cushion cap of land sectional type and its production and installation method | |
| CN207277541U (en) | Prefabricated component and cast-in-place column assembled integral concrete frame structure | |
| CN106958259B (en) | A kind of concrete towers column foundation and its construction method | |
| CN207047881U (en) | The prefabricated cushion cap of core is filled with joint bar | |
| CN103628883A (en) | Non-bracket overlong steel bar binding mobile molding method of deep-narrow vertical shaft | |
| CN114575589A (en) | Construction method for lifting template of electric hoist of steel reinforced concrete structural column | |
| CN108978699A (en) | Land integral prefabricated bearing platform and production and installation method thereof | |
| CN108951683A (en) | A kind of prefabricated cushion cap of land superposed type and its production and installation method | |
| CN116677061A (en) | Municipal rainwater and sewage inspection well integrated prefabricated installation device and construction method thereof | |
| CN112575771B (en) | Environment-friendly construction method for vertical support system of reverse-acting underground engineering steel concrete with piles and columns | |
| CN108457191A (en) | Large span T-steel structure beam sections for joining island bridge install closure method | |
| CN211074115U (en) | Prefabricated cushion cap structure of double-column type mound | |
| CN210256628U (en) | Self-adaptive outer mold system for prefabricating concrete | |
| CN208267093U (en) | A kind of Precast Concrete Frame | |
| CN114718112B (en) | Pit formwork construction method in straight wall pit | |
| CN115059041B (en) | Self-lifting assembled form for lock head empty box structure concrete |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190104 |