CN104831639B - A kind of ultra-wide nonprismatic continuous beam 0# block consolidation and releasing construction method - Google Patents
A kind of ultra-wide nonprismatic continuous beam 0# block consolidation and releasing construction method Download PDFInfo
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- CN104831639B CN104831639B CN201510242570.6A CN201510242570A CN104831639B CN 104831639 B CN104831639 B CN 104831639B CN 201510242570 A CN201510242570 A CN 201510242570A CN 104831639 B CN104831639 B CN 104831639B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/10—Cantilevered erection
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
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- Engineering & Computer Science (AREA)
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of ultra-wide nonprismatic continuous beam 0# block consolidation and release construction method, step is to be respectively mounted steel pipe column in the left and right sides of continuous pier as Temporary Piers, connects with connecting system with between the adjacent steel tubing string of row；Upper binder will be respectively adopted and lower binder is weldingly connected between built-in fitting on the continuous pier sidewall of each steel pipe column and sides adjacent；Two placing of reinforcement concrete temporary consolidation blocks are poured in the pier top left and right sides of continuous pier；Before and after the pier top centre of continuous pier, both sides hold-down support pinner respectively, fixes spherical steel support on bearing pad stone respectively；Upper binder is fixed multiple cushion block, each cushion block is fixed a distribution beam；Multiple distribution beam of every side are fixed a triangle bed die framed bent respectively；Triangle bed die framed bent carries out pouring of No. 0 block；Before the adjacent box beam block span centre on two continuous piers closes up, excision armored concrete temporary consolidation block and steel pipe column.This method is used to improve construction quality.
Description
Technical field
The present invention relates to bridge 0# block temporary consolidation and release construction method, particularly relating to ultra-wide nonprismatic continuous beam 0# block steel pipe frame
Method and temporary consolidation and release integral construction method.
Background technology
In recent years, along with the developing rapidly of national economy, science and technology continuous progressive, bridge Construction Technology is maked rapid progress
Development, Longspan Bridge application is more and more extensive, has started the new situation of bridge construction.Continuous beam cantilever casting method is China
One of main method of large span prestressed concrete Construction of continuous beam, 0# block is then for emphasis and the difficult point position of construction.Hanging Basket
The premise of cantilever casting construction is the continuous pier of temporary consolidation so that beam body is converted into statically determinate structure by unstable system temporarily.Ultra-wide is become
When the traditional method of cross section continuous beam 0# block consolidation uses 0# block construction with brackets, a basic part for support is cushion cap, another portion
Dividing is ground foundation, easily forms the biggest differential settlement.And the bracket basis on cushion cap does not needs to process, the most invisible
In add cost, dragged slowly the duration.During the construction of conventional stent method, support is solely subjected to vertical force when 0# constructs, and is not subject to construction
The pulling force that time middle, unbalanced moment produces, safety substantially reduces.
The patent authorized is learnt by retrieval:
The Chinese patent of 1 Application No. 200710173653X discloses " pier top supportless temporary consolidation technique ", including: 1. exist
Middle pier pier top arranges four pieces of pressure blocks, and pressure block indulges bridge to long 60cm, the long 160cm of direction across bridge, high 80cm；Pressure block is by two
It is grouped into: lower floor is C55 armored concrete, cast-in-place when pier stud is constructed；Upper strata is grout blanket, and thickness 3～5cm, at Zhong Dun
Fill closely knit with grouting material after the lifting of pier top section box beam is in place；2. reserved 10cm duct, cloth in pier stud top and pier top section box beam
Put 4 " U " type prestressed strands of 2 row, in the grouting post-stretching anchoring of pier top section box beam pressure block top layer in place, interim.This is special
Although profit is also to arrange that interim pressure-bearing is fast in pier top, it is aided with anchoring temporarily steel bundle, utilizes pressure block to undertake upper load, but use
The pier top supportless temporary consolidation technique of " U " type prestressed strand opposing tilting moment is designed between pier stud and pier top section box beam,
When No. 0 block is long, this consolidation technique stress system cannot support.
The Chinese patent of 2 Application No. 2011103836844 discloses " cantilever pouring joist steel pipe concrete temporary consolidation system ",
Flange is used including between the pre-buried fining twisted steel of supporting steel pipe, H profile steel, concrete, fining twisted steel, supporting steel pipe and cushion cap
Connecting, concrete perfusion in supporting steel pipe, H profile steel one end is welded, as sustaining wall through supporting steel pipe with pier stud pier top built-in fitting
Measure and box beam initial segment cast-in-place support；Consolidation system is connected into fining twisted steel stretch-draw between supporting steel pipe and box beam.This is special
The temporary consolidation of profit connects into consolidation system mainly by between supporting steel pipe and box beam with fining twisted steel stretch-draw, and stress load is less,
It is not suitable for wide cross section box beam, and fining twisted steel is intended to cut short in the future, so can reduce the stress load of box girder web.
The Chinese patent of 3 Application No. 2013103826199 disclose " H type double column pier wide-bridge-surface cantilever temporary consolidation structure and
Construction method ", its structure include concrete bearing platform, be positioned at the box-type continuous beam above concrete bearing platform, connect concrete bearing platform with
Many support posts of box-type continuous beam, support post divides two row's symmetries to stand on both sides before and after pier stud, the corner of concrete bearing platform,
Along the left and right sides of direction across bridge, being respectively symmetrically to be provided with and pour four brackets being integrated with concrete bearing platform, bracket is continuous with box
It is connected with between beam and is steel pipe column, box along vertical bridge to four symmetrical skewed horizontal load posts, support post and skewed horizontal load post
The base plate of continuous beam is provided with cast-in-place support beam, all passes through steel between support beam and concrete bearing platform, between support beam and bracket
Prestress fine rolled twisted bar uniform in tubing string is to drawing connection.This patent is to be suitable for H type twin shaft pier, is not suitable for rectangular pier columns.
And the truss structure of the support post of this patent can not well resist unbalanced moment, and waste material.
Summary of the invention
It is an object of the invention to overcome the shortcoming of prior art, it is provided that one can bear in work progress vertical force and opposing not
The pulling force that balance moment of flexure produces, the ultra-wide nonprismatic continuous beam 0# block that differential settlement is minimum, safety is high consolidates and releases construction method.
A kind of ultra-wide nonprismatic continuous beam 0# block of the present invention consolidates and releases construction method, and it comprises the following steps:
(1) be respectively mounted row's steel pipe column as Temporary Piers in the left and right sides of continuous pier along direction across bridge, with row adjacent steel tubing string it
Between with connect system connect；
(2) upper binder and lower binder will be respectively adopted between the built-in fitting on the continuous pier sidewall of each steel pipe column and sides adjacent along water
Square to being weldingly connected, described upper binder and lower binder extend to outside steel pipe column, the upper binder on same steel pipe column and under
Cant beam is used to be fixedly linked between the outside of binder；
(3) pour along direction across bridge respectively in the pier top left and right sides of continuous pier and be fixed with two placing of reinforcement concrete temporary consolidation blocks, described
The vertical reinforcement of temporary consolidation block stretch out the block top of temporary consolidation block, fix for the bar connecting with 0# block to be cast；
(4) before and after the pier top centre of continuous pier, both sides fix a bearing pad stone respectively, and described each bearing pad stone is reserved with
Four ducts, then fix a spherical steel support on each bearing pad stone respectively, the top board of spherical steel support are provided with
Four supporting legs, in four reserving hole channels that the bed bolt of described spherical steel support is screwed on bearing pad stone respectively, and in duct
In be in the milk；
(5) on described upper binder, fix multiple cushion block, each described cushion block fixes a distribution beam, described distribution
Beam is perpendicular to binder；
(6) in multiple described distribution beam of every side, an end face is fixed respectively suitable with 0# block bottom shape to be cast
Triangle bed die framed bent；
(7) on described triangle bed die framed bent, pouring of 0# block is first carried out, by spherical steel support while pouring 0# block
Four supporting legs pour in 0# block concrete and are fixed, the most successively by the bar connecting of the vertical reinforcement of temporary consolidation block with 0# block
Symmetry pours the box beam block of 0# block both sides, till closing up leading portion with adjacent continuous pier span centre；
(8), before the adjacent box beam block span centre on two continuous piers closes up, use essence steel cable sawing except armored concrete temporary consolidation
Block and steel pipe column.
Employing the invention has the beneficial effects as follows: the present invention arranges two groups of armored concrete temporary consolidation blocks at continuous pier pier top direction across bridge,
The vertical force being primarily subjected in work progress, and arrange on each continuous pier direction across bridge cushion cap two row's steel pipe columns as Temporary Piers,
The pulling force that opposing unbalanced moment produces, is converted into statically determinate structure by continuous pier 0# block by unstable system temporarily, executes for Hanging Basket cantilever
Work provides condition, it is ensured that construction quality.Before full-bridge closes up, i.e. after rigid support welding, quickly, thoroughly
Excise continuous pier armored concrete temporary consolidation block and steel pipe column Temporary Piers, bridge system is converted into static determinacy knot by redundant structure
Structure.In order to excise continuous pier steel structure concrete temporary consolidation block efficiently, use essence steel cable saw technology significantly reduce cost,
Save the duration, improve construction quality.
Accompanying drawing explanation
Fig. 1 is to use one ultra-wide nonprismatic continuous beam 0# block of the present invention consolidation and release construction method longitudinal direction elevational schematic view；
Fig. 2 is a kind of ultra-wide nonprismatic continuous beam 0# block consolidation shown in Fig. 1 and releases joint steel pipe post on the continuous pier of construction method
Built-in fitting schematic diagram；
Fig. 3 is a kind of ultra-wide nonprismatic continuous beam 0# block consolidation shown in Fig. 1 and releases construction method armored concrete temporary consolidation
Block and bearing pad stone schematic top plan view.
Detailed description of the invention
With specific embodiment, the present invention is described in detail below in conjunction with the accompanying drawings.
A kind of ultra-wide nonprismatic continuous beam 0# block of the present invention consolidates and releases construction method as shown in drawings, and it includes following step
Rapid:
(1) it is respectively mounted row's steel pipe column 1 as Temporary Piers, the adjacent steel of same row in the left and right sides of continuous pier 11 along direction across bridge
It is 12 connections with connection between tubing string；
(2) it is respectively adopted upper binder 4 and lower system by between the built-in fitting 10 on the continuous pier sidewall of each steel pipe column 1 and sides adjacent
Beam 3 is weldingly connected in the horizontal direction, and described upper binder 4 and lower binder 3 extend to outside steel pipe column 1, same steel pipe column
Cant beam 5 is used to be fixedly linked between upper binder 4 and the outside of lower binder 3 on 1；
(3) pour along direction across bridge respectively in the pier top left and right sides of continuous pier 11 and be fixed with two placing of reinforcement concrete temporary consolidation blocks 9,
The vertical reinforcement of described temporary consolidation block 9 stretches out the block top of temporary consolidation block 9, for the bar connecting with 0# block to be cast
Fixing；Every placing of reinforcement concrete temporary consolidation block 9 direction across bridge can be spaced and set three.
(4) before and after the pier top centre of continuous pier 11, both sides fix a bearing pad stone 13 respectively, on described each bearing pad stone
It is reserved with four ducts, on each bearing pad stone 13, then fixes a spherical steel support 14, spherical steel support 14 respectively
Top board on four supporting legs are installed, four preformed holes that the bed bolt of described spherical steel support is screwed on bearing pad stone respectively
In road, and it is in the milk in duct.
(5) on described upper binder 4, fix multiple cushion block 6, each described cushion block 6 fixes a distribution beam 7, institute
The distribution beam 7 stated is perpendicular to binder 4；
(6) in multiple described distribution beam 7 of every side, an end face and 0# block 2 bottom shape phase to be cast are fixed respectively
Adaptive triangle bed die framed bent 8；
(7) on described triangle bed die framed bent 8, first carry out pouring of 0# block 2, while pouring 0# block, spherical steel is propped up
Four supporting legs of seat pour in 0# block concrete and are fixed, by the bar connecting of the vertical reinforcement of temporary consolidation block with 0# block the most again
The symmetrical box beam block pouring 0# block 2 both sides successively, till closing up leading portion with adjacent continuous pier span centre；
(8), before the adjacent box beam block span centre on two continuous piers closes up, use essence steel cable sawing except armored concrete temporary consolidation block
9 and steel pipe column.
Embodiment 1
(1) it is respectively mounted row's steel pipe column 1 as Temporary Piers, the adjacent steel pipe of same row in the left and right sides of continuous pier 11 along direction across bridge
It is 12 connections with connection between post；
(2) it is respectively adopted upper binder 4 and lower system by between the built-in fitting 10 on the continuous pier sidewall of each steel pipe column 1 and sides adjacent
Beam 3 is weldingly connected in the horizontal direction, and described upper binder 4 and lower binder 3 extend to outside steel pipe column 1, same steel pipe column
Cant beam 5 is used to be fixedly linked between upper binder 4 and the outside of lower binder 3 on 1；
(3) pour along direction across bridge respectively in the pier top left and right sides of continuous pier 11 and be fixed with two placing of reinforcement concrete temporary consolidation blocks 9,
Every placing of reinforcement concrete temporary consolidation block 9 direction across bridge interval sets three, and the vertical reinforcement of described temporary consolidation block 9 stretches out temporarily
The block top of knot 9, fixes for the bar connecting with 0# block to be cast.
(4) before and after the pier top centre of continuous pier 11, both sides fix a bearing pad stone 13 respectively, on described each bearing pad stone
It is reserved with four ducts, on each bearing pad stone 13, then fixes a spherical steel support 14, described spherical steel respectively
Being provided with four supporting legs on the top board of bearing 14, what the bed bolt of described spherical steel support was screwed on bearing pad stone respectively has four
In individual reserving hole channel, and it is in the milk in duct.
(5) on described upper binder 4, fix multiple cushion block 6, each described cushion block 6 fixes a distribution beam 7, institute
The distribution beam 7 stated is perpendicular to binder 4；
(6) in multiple described distribution beam 7 of every side, an end face and 0# block 2 bottom shape phase to be cast are fixed respectively
Adaptive triangle bed die framed bent 8；
(7) on described triangle bed die framed bent 8, first carry out pouring of 0# block 2, while pouring 0# block, spherical steel is propped up
Four supporting legs of seat pour in 0# block concrete and are fixed, by the bar connecting of the vertical reinforcement of temporary consolidation block with 0# block the most again
The symmetrical box beam block pouring 0# block 2 both sides successively, till closing up leading portion with adjacent continuous pier span centre；
(8), before the adjacent box beam block span centre on two continuous piers closes up, use essence steel cable sawing except armored concrete temporary consolidation
Block 9 and steel pipe column.
Use this method, compare conventional art and significantly reduce cost, save reinforcing bar 44%, save concrete 25%, save
10 days durations, continuous pier 0# block is converted into statically determinate structure by unstable system temporarily, provides condition for cradle cantilever construction,
Improve construction quality.
Claims (1)
1. a ultra-wide nonprismatic continuous beam 0# block consolidation and releasing construction method, it is characterised in that it comprises the following steps:
(1) it is respectively mounted row's steel pipe column as Temporary Piers, the adjacent steel pipe of same row in the left and right sides of continuous pier along direction across bridge
With connecting system's connection between post；
(2) it is respectively adopted upper binder and lower binder edge by between the built-in fitting on the continuous pier sidewall of each steel pipe column and sides adjacent
Horizontal direction is weldingly connected, and described upper binder and lower binder extend to outside steel pipe column, the upper binder on same steel pipe column
And between the outside of lower binder, use cant beam to be fixedly linked；
(3) pour along direction across bridge respectively in the pier top left and right sides of continuous pier and be fixed with two placing of reinforcement concrete temporary consolidation blocks,
The vertical reinforcement of described temporary consolidation block stretches out the block top of temporary consolidation block, solid for the bar connecting with 0# block to be cast
Fixed；
(4) before and after the pier top centre of continuous pier, both sides fix a bearing pad stone respectively, pre-on described each bearing pad stone
Leave four ducts, on each bearing pad stone, then fix a spherical steel support respectively, described spherical steel support
Four supporting legs are installed, four preformed holes that the bed bolt of described spherical steel support is screwed on bearing pad stone respectively on top board
In road, and it is in the milk in duct；
(5) on described upper binder, fix multiple cushion block, each described cushion block fixes a distribution beam, described
Distribution beam is perpendicular to binder；
(6) in multiple described distribution beam of every side, fix an end face respectively to fit mutually with 0# block bottom shape to be cast
The triangle bed die framed bent joined；
(7) on described triangle bed die framed bent, pouring of 0# block is first carried out, by spherical steel support while pouring 0# block
Four supporting legs pour in 0# block concrete and the bar connecting of the vertical reinforcement of temporary consolidation block with 0# block fixed, the most again
The symmetrical box beam block pouring 0# block both sides successively, till closing up leading portion with adjacent continuous pier span centre；
(8), before the adjacent box beam block span centre on two continuous piers closes up, use essence steel cable sawing temporarily solid except armored concrete
Caking and steel pipe column.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510242570.6A CN104831639B (en) | 2015-05-13 | 2015-05-13 | A kind of ultra-wide nonprismatic continuous beam 0# block consolidation and releasing construction method |
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| CN201510242570.6A CN104831639B (en) | 2015-05-13 | 2015-05-13 | A kind of ultra-wide nonprismatic continuous beam 0# block consolidation and releasing construction method |
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| CN104831639B true CN104831639B (en) | 2016-10-12 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106320180A (en) * | 2016-09-08 | 2017-01-11 | 中铁六局集团天津铁路建设有限公司 | Porous continuous beam symmetric span-by-span pouring construction method |
| CN106988228A (en) * | 2017-03-07 | 2017-07-28 | 荣盛建设工程有限公司 | Prestressed concrete continuous beam girder construction process |
| CN108453908B (en) * | 2018-04-30 | 2023-09-26 | 安徽省公路桥梁工程有限公司 | Temporary consolidation cutting system and method for cantilever casting box girder |
| CN109056547B (en) * | 2018-09-14 | 2023-09-26 | 宁波交通工程建设集团有限公司 | Temporary consolidation structure of continuous beam bridge pier and construction method |
| CN110939064A (en) * | 2019-11-19 | 2020-03-31 | 中国铁建大桥工程局集团有限公司 | Method for quickly removing continuous beam pier and beam consolidation |
| CN112281684B (en) * | 2020-09-03 | 2022-06-24 | 中铁十一局集团第一工程有限公司 | Continuous beam zero number block combined support mounting construction method and support |
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| JP2000096834A (en) * | 1998-09-17 | 2000-04-04 | Sumitomo Constr Co Ltd | Reinforcing structure of concrete member |
| CN101660296A (en) * | 2009-09-08 | 2010-03-03 | 中铁九局集团有限公司 | Method for casting concrete 0# block support by continuous beam cantilever |
| CN202347446U (en) * | 2011-12-06 | 2012-07-25 | 中铁四局集团第一工程有限公司 | Supporting structure for construction of zero block of reinforced concrete continuous beam |
| CN103306211A (en) * | 2013-06-18 | 2013-09-18 | 中铁三局集团有限公司 | Long and large No.0 reinforcing steel bar binding construction method based on framework beam |
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2015
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000096834A (en) * | 1998-09-17 | 2000-04-04 | Sumitomo Constr Co Ltd | Reinforcing structure of concrete member |
| CN101660296A (en) * | 2009-09-08 | 2010-03-03 | 中铁九局集团有限公司 | Method for casting concrete 0# block support by continuous beam cantilever |
| CN202347446U (en) * | 2011-12-06 | 2012-07-25 | 中铁四局集团第一工程有限公司 | Supporting structure for construction of zero block of reinforced concrete continuous beam |
| CN103306211A (en) * | 2013-06-18 | 2013-09-18 | 中铁三局集团有限公司 | Long and large No.0 reinforcing steel bar binding construction method based on framework beam |
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