CN105887685A - Railway high pier body template and scaffold integrated turnover formwork segmental construction method - Google Patents

Railway high pier body template and scaffold integrated turnover formwork segmental construction method Download PDF

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Publication number
CN105887685A
CN105887685A CN201610241047.6A CN201610241047A CN105887685A CN 105887685 A CN105887685 A CN 105887685A CN 201610241047 A CN201610241047 A CN 201610241047A CN 105887685 A CN105887685 A CN 105887685A
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CN
China
Prior art keywords
pier
formwork
scaffold
template
construction
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Pending
Application number
CN201610241047.6A
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Chinese (zh)
Inventor
周文
廖云沼
冯朝军
石崇
谢光宇
孙军
郑贤超
陈蔚
周世交
张应红
缪晨辉
饶康飞
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China Railway Port and Channel Engineering Group Co Ltd
Bridge Branch of China Railway Port and Channel Engineering Group Co Ltd
Original Assignee
China Railway Port and Channel Engineering Group Co Ltd
Bridge Branch of China Railway Port and Channel Engineering Group Co Ltd
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Filing date
Publication date
Application filed by China Railway Port and Channel Engineering Group Co Ltd, Bridge Branch of China Railway Port and Channel Engineering Group Co Ltd filed Critical China Railway Port and Channel Engineering Group Co Ltd
Priority to CN201610241047.6A priority Critical patent/CN105887685A/en
Publication of CN105887685A publication Critical patent/CN105887685A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00Methods or apparatus specially adapted for erecting or assembling bridges
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • E01D19/02Piers; Abutments ; Protecting same against drifting ice
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00Material constitution of bridges
    • E01D2101/20Concrete, stone or stone-like material
    • E01D2101/24Concrete
    • E01D2101/26Concrete reinforced

Abstract

The invention discloses a railway high pier body template and scaffold integrated turnover formwork segmental construction method, which is used for the technical field of bridge construction. The method comprises the following steps: prefabricating pier body templates and a shaping scaffold; erecting a first-layer steel bar bound scaffold; binding first-section pier body steel bars; after setting a guy cable, detaching the first-layer steel bar bound scaffold; hoisting the pier body templates, wherein at least three sections of the pier body templates are arranged from bottom to top; after detaching the guy cable, pouring first-section pier body concrete; after reaching required strength, detaching the pier body templates except the pier body template of the topmost section; hoisting on the pier body template of the topmost section to form a steel bar bound scaffold and binding the pier body steel bars; after setting the guy cable, detaching the steel bar bound scaffold; mounting the first detached pier body templates on the pier body template of the topmost section to form a turnover formwork; detaching the steel bar guy cable, pouring secondary-section pier body concrete; continually carrying out turnover formwork construction on the residual sections of a pier body and finishing pier body construction. The railway high pier body template and scaffold integrated turnover formwork segmental construction method has remarkable characteristics and advantages of convenience for mounting and dismounting, simplicity in operation, safety and reliability and short construction period.

Description

A kind of railway height pier body formwork scaffold integration overmolded segmental construction method
Technical field
The present invention is used for technical field of bridge construction, particularly relates to a kind of railway height pier body formwork scaffold integration overmolded segmental construction method.
Background technology
In recent years, China various places just at Large scale construction traffic network, and bridge as the version of a kind of common leap rivers,lakes and seas on every traffic network also can through frequently with, bridge pier kind also gets more and more.
Conventional pier construction method: high pier shaft can pour according to the construction of height merogenesis or one piece.(1) during merogenesis pouring construction, scaffold, top layer operation platform and guard rail and guy should be installed by several times, pier body formwork is installed by several times, pier shaft concrete pours by several times, period should remove heightening foot hand cradle, again installation platform, guard rail and guy after last operation platform, guard rail and guy.Specific practice: after bearing platform construction, pier shaft surrounding is set up the smooth compacting of scaffold position ground, head joint scaffold, top layer operation platform and guard rail and guy are installed, pier body formwork head saves installation, pour first joint pier shaft concrete, concrete curing dabbing, remove top layer operation platform and guard rail and guy, heightening foot hand cradle, installation platform and guard rail, then directly installation form is increased at the upper one template end face saving pier shaft, pour second section pier shaft concrete, carry out follow-up segmental construction by above construction method.The every secondary segment of operation platform scaffolding height generally greater than pier shaft pours height, and scaffold corner requires to arrange guy.(2) when one piece pours, scaffold, operation platform and guard rail and guy answer once mounting to put in place, and pier shaft bar one-time is installed, pier body formwork once mounting, pier shaft concrete one-time-concreting.Specific practice: after bearing platform construction, pier shaft surrounding is set up the smooth compacting of scaffold position ground, once set up reinforcing bar binding and template pacifies the steel tube fastener scaffold and end face operation platform torn open, arranging guy, scaffold stops enough construction spaces away from pier shaft, once installs pier shaft reinforcing bar and guy on foot hands operation platform, once mounting pier body formwork, reinforcing bar guy is removed in period layering, pours whole pier shaft concrete, maintenance pier shaft concrete.
And scaffold building generally adopts two kinds of forms: fastener-style steel pipe scaffolding, multi-functional multifunction scaffold series, its erection method is slightly different.
The shortcoming of prior art:
Grand bridge high pier construction is conventionally employed sets up the mode organizing construction that double portions external scaffolding combines with inside staging, and inside staging is set up and serviced into pier shaft reinforcing bar binding, and reinforcing bar binding is removed after completing.If when one piece pours, its sequence of construction is usually: sets up interior external scaffolding and operation platform, arranges scaffold guy, colligation pier shaft reinforcing bar, reinforcing bar guy, model sheetinstallat are set, remove inside staging, remove reinforcing bar guy, casting concrete, dismounting outside scaffolding and template;If its sequence of construction is usually when pouring by several times: set up external scaffolding and operation platform in first joint, guy is set, colligation head saves reinforcing bar, reinforcing bar guy is set, head joint template is installed, remove head joint inside staging, remove reinforcing bar guy, pour first joint concrete, maintenance dabbing, merogenesis connects high outside scaffolding and operation platform, again inside staging is set up, guy is set, colligation sections reinforcing bar, reinforcing bar guy is set, increase installation sections template, remove this segmented interior scaffold, remove reinforcing bar guy, pour this section concrete, maintenance dabbing, then follow-up segmental construction is carried out by sections technique.During high pier construction use both construction technologies, its shortcoming respectively:
Pier shaft one piece pours shortcoming: 1, outside scaffolding needs once to set up, and operation is loaded down with trivial details, and personnel put into many, and construction cost is high, and security risk is high;2, every sections pier construction inside staging needs once to set up, once remove, and operation is loaded down with trivial details, and the personnel of executing put into many, and security risk is high;3, template needs to be designed to whole pier shaft height, and cost is high, and personnel put into many, installs security risk high.
Pier shaft merogenesis repeatedly pours shortcoming: 1, outside scaffolding needs to set up by several times to connect height, and operation is loaded down with trivial details, long construction period, and construction cost is high, and safety coefficient is low;2, every sections pier construction inside staging needs to set up by several times, remove by several times, and operation is loaded down with trivial details, long construction period, and safety coefficient is low;3, template is also required to be designed to whole pier shaft height, and cost is high, and long construction period, installs security risk high.
Fastener-style steel pipe scaffolding, multifunction scaffold series are set up scaffold and are also respectively arranged with shortcoming:
1, fastener-style steel pipe scaffolding sets up scaffold shortcoming: field statistics result shows, one pier stud high for about 30m general construction method construction period reaches about 30 days, along with continuing to increase of pier shaft height, set up and dismantle difficulty, the safety management risk of its fastener-style steel pipe scaffolding all will be along with increases, and input cost of constructing increases the most accordingly;
2, fastener-style steel pipe scaffolding sets up scaffold shortcoming: multifunction scaffold series originates from western countries the beginning of the sixties, once achieved noticeable achievement in some high-building constructions are applied, but to the nineties, this scaffold does not obtain intended development, construction is applied the most fewer and feweri, trace it to its cause, be on the one hand that the constructing technology of erecting tools own and process use management of safe operation to be difficult to be in accurate and effective controlled state, cause accident rate to remain high;On the other hand erection of frames dismounting workload is big and construction risk is high, long construction period, and construction cost is high;The problem of the suitability besides, has the difference of essence in plains region with Mountainous areas different terrain, geological conditions use, and has higher technology requirement to basement process.
Being respectively arranged with shortcoming at both the above scaffold building, and in the case of entirety, gradation pour under conditions of two kinds of scaffolds, template puts into big, scaffold and model sheetinstallat risk are high.
Summary of the invention
For solving the problems referred to above, the present invention provides a kind of railway height pier body formwork scaffold integration overmolded segmental construction method, wherein, scaffold assembled molding in advance also can carry out integral hoisting, template and template framed bent use integrated design, facilitate scaffold that location is installed, there is convenient to assemble and disassemble, simple to operate, safe and reliable, the distinguishing feature of short construction period and advantage.
The technical solution adopted for the present invention to solve the technical problems is: a kind of railway height pier body formwork scaffold integration overmolded segmental construction method, comprises the following steps:
The most prefabricated pier body formwork and sizing scaffold, the outside of described pier body formwork is provided with platform, and described sizing scaffold is assemblied into some sections in advance according to pier shaft shape, and each sections sizing scaffold all can carry out integral hoisting;
S20., after bearing platform construction completes, unify each sections sizing scaffold formation first floor reinforcing bar binding scaffold at cushion cap top, and colligation head saves pier shaft reinforcing bar, removes first floor reinforcing bar binding scaffold after pier shaft reinforcing bar top arranges guy;
S30. lifting construction head saves the pier body formwork of pier shaft, and pier body formwork, from down to up at least provided with three joints, is removed guy after-pouring head and saved pier shaft concrete;
S40. after concrete strength reaches the intensity of requirement, remove the pier body formwork in addition to epimerite pier body formwork, unify on the platform of epimerite pier body formwork formation reinforcing bar binding scaffold by each sections sizing scaffold, colligation pier shaft reinforcing bar, removes reinforcing bar binding scaffold after pier shaft reinforcing bar top arranges guy;
S50., the pier body formwork first removed is installed to be formed on epimerite pier body formwork overmolded, removes reinforcing bar guy, pour partial node pier shaft concrete;
S60. repeat step S40-S50 and continue remaining joint pier shaft of over-form construction, until pier construction completes.
Being further used as the improvement of technical solution of the present invention, when lifting pier body formwork, merogenesis installs gate-type walking ladder, and single-unit gate-type walking ladder height is contour with single-unit pier body formwork, and period gate-type walking ladder is staggered with pier body formwork to be installed.
It is further used as the improvement of technical solution of the present invention, also includes step S70. The pier body formwork formation one joint height adjustment joint that pier shaft top last sections height is different, is finally mounted directly top cap template on height adjustment joint, completes concrete pouring construction.
It is further used as the improvement of technical solution of the present invention, in step 40, concrete strength reaches more than the 90% of design strength, pier shaft end face concrete surface is carried out dabbing and cleans out, remove simultaneously the pier body formwork in addition to epimerite pier body formwork carrying out clear up, brush releasing agent.
It is further used as the improvement of technical solution of the present invention, pier body formwork includes template and template framed bent, there is outside described template the back cord of multiple tracks horizontally set, described template framed bent is welded and fixed with back cord, template is being internally formed, after assembling installation, the cast die cavity pouring pier shaft, and template framed bent top forms platform at the periphery pouring die cavity.
It is further used as the improvement of technical solution of the present invention, described template framed bent includes some framed bent unit, described framed bent unit is formed rectangular frame by inner side frame, outer side frame, upper transverse frame and lower transverse frame, each inner side frame of framed bent unit welds with the back cord of template, and each framed bent unit is sequentially arranged outside template and forms platform at the top of upper transverse frame.
It is further used as the improvement of technical solution of the present invention, the outer side frame of each described framed bent unit is sequentially connected with by connecting rod, described template framed bent all lays checkered steel plate on the upper transverse frame and lower transverse frame of each framed bent unit, described framed bent unit is provided with the horizontal frame in middle part between inner side frame and outer side frame, being provided with diagonal brace between the inner of horizontal frame, middle part and the outer end of upper transverse frame, described platform is provided with limiting plate at the lateral edges away from template.
Being further used as the improvement of technical solution of the present invention, the described each sections of sizing scaffold locks molding, the bottom equal welding foot hand cradle collet of each sections by steel tube fastener after all using steel pipe assembly, and scaffold collet is connected by U-shaped buckle and platform are fixing.
Being further used as the improvement of technical solution of the present invention, pier shaft rectangular in cross-section, described sizing scaffold is divided into four sections, and the cross section of each sections is the most L-shaped, and each sections ending is in turn connected to form the ring-type of cincture pier shaft.
Beneficial effects of the present invention:
The platform of template and rear side uses integrated design, avoid conventional scaffold and there is, with the scope of operation, the potential safety hazard that bigger space is brought as during operating platform, the most general scaffold construction pier shaft is to ensure the working place that the dismounting of template is reserved with 80~100cm, this working place all has bigger potential safety hazard when workman's assembling reinforcement and peace form removal, simultaneously as without setting up landing leg hand cradle, the most just ground, landform at construction pier position are not had the highest requirement.
Scaffold assembled molding in advance also can carry out integral hoisting, pier body formwork scaffold integrated construction, work platforms time processing, install after can reuse, it is not necessary to conventional a large amount of manpowers spent by scaffold building and steel pipe resource, greatly reduce construction cost.Pier shaft scaffold institutional operation simultaneously accelerates all transfer efficients of template, substantially increases pier construction speed.
Accompanying drawing explanation
The invention will be further described below in conjunction with the accompanying drawings:
Fig. 1 is template framed bent elevation of the present invention;
Fig. 2 is template framed bent sectional view of the present invention;
Fig. 3 is that the present invention shapes scaffold plane graph;
Fig. 4 is that the present invention shapes scaffold elevation;
Fig. 5 is template scaffold integral system general assembly drawing of the present invention.
Detailed description of the invention
Referring to figs. 1 through Fig. 5, that show the concrete structure of the preferred embodiments of the invention.Will be detailed below the construction features of each element of the present invention, if and when being described direction (upper and lower, left and right, before and after), it is to describe for reference with the structure shown in Fig. 1 or Fig. 5, but the actually used direction of the present invention is not limited thereto.
The invention provides a kind of railway height pier body formwork scaffold integration overmolded segmental construction method, comprise the following steps:
The most prefabricated pier body formwork and sizing scaffold 6, the outside of described pier body formwork is provided with platform 21, and described sizing scaffold 6 is assemblied into some sections in advance according to pier shaft shape, and each sections sizing scaffold 6 all can carry out integral hoisting;
S20. after bearing platform construction completes, unify each sections sizing scaffold 6 formation first floor reinforcing bar binding scaffold at cushion cap top, colligation head saves pier shaft reinforcing bar, colligation pier shaft reinforcing bar height is that 9m(does not include lower joint pier shaft joint reinforcing bar length in reserve), after pier shaft reinforcing bar top arranges guy, remove first floor reinforcing bar binding scaffold;
S30. lifting construction head saves the pier body formwork of pier shaft, when lifting pier body formwork, merogenesis installs gate-type walking ladder, single-unit gate-type walking ladder height is contour with single-unit pier body formwork, period gate-type walking ladder is staggered with pier body formwork to be installed, first section door formula walking ladder is i.e. installed, lifts first segment pier body formwork;Second section gate-type walking ladder is installed, second layer pier body formwork is installed, 3rd section door formula walking ladder is installed, third layer pier body formwork is installed, pier body formwork is from down to up at least provided with three joints, and often joint pier body formwork 3m is high, and every layer of pier body formwork must carry out Site Template repetition measurement, adjust bridge formwork misalignment of axe in time, remove guy after-pouring head and save pier shaft concrete;
S40. concrete strength reaches more than the 90% of design strength, pier shaft end face concrete surface is carried out dabbing and cleans out, remove simultaneously the pier body formwork in addition to epimerite pier body formwork carrying out clear up, brush releasing agent, unify on the platform of epimerite pier body formwork formation reinforcing bar binding scaffold by each sections sizing scaffold, colligation pier shaft reinforcing bar, removes reinforcing bar binding scaffold after pier shaft reinforcing bar top arranges guy;
S50. the pier body formwork utilizing 30t automobile loop wheel machine or crawler crane the most first to remove is installed to be formed on epimerite pier body formwork overmolded, period installs walking ladder and installs Tong Bu with pier body formwork, and by walking ladder attached wall on pier shaft, remove reinforcing bar guy, pour partial node pier shaft concrete;
S60. repeat step S40-S50 and continue remaining joint pier shaft of over-form construction, until pier construction completes;
S70. the pier body formwork that the last sections in pier shaft top height is different forms a joint height adjustment joint, is finally mounted directly top cap template on height adjustment joint, completes concrete pouring construction.
Wherein, pier body formwork includes template 1 and template framed bent 2, there is outside described template 1 back cord 11 of multiple tracks horizontally set, described template framed bent 2 is welded and fixed with back cord 11, template 1 is being internally formed, after assembling installation, the cast die cavity pouring pier shaft, and template framed bent 2 top forms platform 21 at the periphery pouring die cavity.Often joint template 1 all includes four pieces, to wearing pull bar 3 between relative template 1, places oblique angle pull bar 4 between adjacent template 1, sees Fig. 2, and template 1 is being internally formed the cast die cavity of rectangle after assembling installation.The platform at template framed bent 2 top uses mainly as the operating platform of top model sheetinstallat and dismounting, also serve as the support system of the scaffold of next joint pier shaft reinforcement installation simultaneously, scaffold can assembled molding in advance can carry out integral hoisting, described platform 21 is provided with limiting plate 22 at the lateral edges away from template 1, and this limiting plate 22 is fixed for the auxiliary stopper of platform 21 top sizing scaffold.Pier body formwork of the present invention and operating platform integrated design, work platforms time processing, install after can reuse, it is not necessary to conventional a large amount of manpowers spent by scaffold building and steel pipe resource, greatly reduce construction cost.Pier shaft scaffold institutional operation simultaneously accelerates all transfer efficients of template, substantially increases pier construction speed.It has convenient to assemble and disassemble, simple to operate, safe and reliable, the distinguishing feature of short construction period and advantage.
Wherein, described template framed bent 2 includes some framed bent unit 23, framed bent unit 23 is welded by No. 10 channel-section steels, described framed bent unit 23 is formed rectangular frame by inner side frame 24, outer side frame 25, upper transverse frame 26 and lower transverse frame 27, the inner side frame 24 of each framed bent unit 23 welds with the back cord 11 of template 1, and each framed bent unit 23 is sequentially arranged outside template 1 and forms platform 21 at the top of upper transverse frame 26.Described framed bent unit 23 is provided with the horizontal frame 28 in middle part between inner side frame 24 and outer side frame 25, is provided with diagonal brace 29 between the inner of the horizontal frame in middle part 28 and the outer end of upper transverse frame 26.The outer side frame of each described framed bent unit 23 is sequentially connected with by connecting rod 20.Described template framed bent 2 all lays checkered steel plate 5 on the upper transverse frame 26 and lower transverse frame 27 of each framed bent unit 23.
When using this pier body formwork to construct with operating platform integral system, welded and installed template framed bent 2 on the back cord 11 of every sections 3m height Pier Formwork, checkered steel plate 5 is laid along template 1 border (i.e. along bridge pier border) at template framed bent 2 end face, the platform 21 at template framed bent 2 top can be as the work foot hands platform of top segment model sheetinstallat and dismounting, also serve as operating personnel's operation and a small amount of facility and material storage platform simultaneously, then sizing scaffold is installed on template framed bent as reinforcing bar binding operating platform.
Additionally, the sizing each sections of scaffold 6 locks molding, the bottom equal welding foot hand cradle collet 61 of each sections by steel tube fastener after all using steel pipe assembly, scaffold collet 61 is connected by U-shaped buckle 62 is fixing with platform 21.Can use connection between each sections is that mutual level connection joint is integral, and described connection system includes straight tube 63, and the two ends of straight tube 63 use fastener to be locked with the two segment being connected.Pier shaft rectangular in cross-section, described sizing scaffold 6 is divided into four sections, and the cross section of each sections is the most L-shaped, and each sections ending is in turn connected to form the ring-type of cincture pier shaft.
The invention have the characteristics that:
1, pier shaft bottom uses standard knot construction, and final section form height is adjusted according to the difference that pier is high, it is simple to the above the most use of standard knot template, height adjustment joint is arranged on top simultaneously, makes the concrete appearance effect bottom bridge pier strengthen.
2, pier shaft reinforcing bar binding scaffold is assembled into 4 pieces in advance, and be directly to be lifted on the platform at Anterior Segment pier body formwork top, by U-shaped buckle fixing-stable, sections reinforcing bar binding after pier shaft can be carried out, it is not necessary to reinforcing bar scaffold dismounted as in the past, without carrying out scaffold basement process, easy to operate, to save artificial, speed is accelerated, can anti-strong wind, safety can ensure.
3, during over-form construction, it is only necessary to processing and fabricating a small amount of standard sections template carries out pier shaft over-form construction, it is possible to complete this Bridge Pier Construction, save the whole pier body formwork of high pier shaft and make, save template cost.Punching block attaches behind steel framed bent, lay checkered steel plate and define permanent platform on steel framed bent, after when the template of pier shaft border, all assembly completes, after holding tightly through reinforcing pull rod with regard to shape whole work platformses, construction is simple, easy to operate, and safety is high.
4, the cohesive force that the template (the epimerite template of prosthomere pier construction) used as load-bearing during over-form construction is dependent between concrete and template is to the vertical load overcoming upper mould to transmit, so this template need to ensure have a sufficiently large contact area and extruding force with concrete, and in construction this joint template be subjected to vertical shear to wearing pull bar.
Certainly, the invention is not limited to above-mentioned embodiment, those of ordinary skill in the art also can make equivalent variations or replacement on the premise of spirit of the present invention, and modification or the replacement of these equivalents are all contained in the application claim limited range.

Claims (9)

1. a railway height pier body formwork scaffold integration overmolded segmental construction method, it is characterised in that comprise the following steps:
The most prefabricated pier body formwork and sizing scaffold, the outside of described pier body formwork is provided with platform, and described sizing scaffold is assemblied into some sections in advance according to pier shaft shape, and each sections sizing scaffold all can carry out integral hoisting;
S20., after bearing platform construction completes, unify each sections sizing scaffold formation first floor reinforcing bar binding scaffold at cushion cap top, and colligation head saves pier shaft reinforcing bar, removes first floor reinforcing bar binding scaffold after pier shaft reinforcing bar top arranges guy;
S30. lifting construction head saves the pier body formwork of pier shaft, and pier body formwork, from down to up at least provided with three joints, is removed guy after-pouring head and saved pier shaft concrete;
S40. after concrete strength reaches the intensity of requirement, remove the pier body formwork in addition to epimerite pier body formwork, unify on the platform of epimerite pier body formwork formation reinforcing bar binding scaffold by each sections sizing scaffold, colligation pier shaft reinforcing bar, removes reinforcing bar binding scaffold after pier shaft reinforcing bar top arranges guy;
S50., the pier body formwork first removed is installed to be formed on epimerite pier body formwork overmolded, removes reinforcing bar guy, pour partial node pier shaft concrete;
S60. repeat step S40-S50 and continue remaining joint pier shaft of over-form construction, until pier construction completes.
Railway height pier body formwork scaffold integration overmolded segmental construction method the most according to claim 1, it is characterized in that: when lifting pier body formwork, merogenesis installs gate-type walking ladder, single-unit gate-type walking ladder height is contour with single-unit pier body formwork, and period gate-type walking ladder is staggered with pier body formwork to be installed.
Railway height pier body formwork scaffold integration overmolded segmental construction method the most according to claim 1, it is characterized in that: also include the pier body formwork formation one joint height adjustment joint that step S70. pier shaft top last sections height is different, finally on height adjustment joint, it is mounted directly top cap template, completes concrete pouring construction.
Railway height pier body formwork scaffold integration overmolded segmental construction method the most according to claim 1, it is characterized in that: in step 40, concrete strength reaches more than the 90% of design strength, pier shaft end face concrete surface is carried out dabbing and cleans out, remove simultaneously the pier body formwork in addition to epimerite pier body formwork carrying out clear up, brush releasing agent.
Railway height pier body formwork scaffold integration overmolded segmental construction method the most according to claim 1, it is characterized in that: pier body formwork includes template and template framed bent, there is outside described template the back cord of multiple tracks horizontally set, described template framed bent is welded and fixed with back cord, template is being internally formed, after assembling installation, the cast die cavity pouring pier shaft, and template framed bent top forms platform at the periphery pouring die cavity.
Railway height pier body formwork scaffold integration overmolded segmental construction method the most according to claim 5, it is characterized in that: described template framed bent includes some framed bent unit, described framed bent unit is formed rectangular frame by inner side frame, outer side frame, upper transverse frame and lower transverse frame, each inner side frame of framed bent unit welds with the back cord of template, and each framed bent unit is sequentially arranged outside template and forms platform at the top of upper transverse frame.
Railway height pier body formwork scaffold integration overmolded segmental construction method the most according to claim 6, it is characterized in that: the outer side frame of each described framed bent unit is sequentially connected with by connecting rod, described template framed bent all lays checkered steel plate on the upper transverse frame and lower transverse frame of each framed bent unit, described framed bent unit is provided with the horizontal frame in middle part between inner side frame and outer side frame, being provided with diagonal brace between the inner of horizontal frame, middle part and the outer end of upper transverse frame, described platform is provided with limiting plate at the lateral edges away from template.
Railway height pier body formwork scaffold integration overmolded segmental construction method the most according to claim 1, it is characterized in that: the described each sections of sizing scaffold locks molding by steel tube fastener after all using steel pipe assembly, the bottom equal welding foot hand cradle collet of each sections, scaffold collet is connected by U-shaped buckle and platform are fixing.
Railway height pier body formwork scaffold integration overmolded segmental construction method the most according to claim 8, it is characterized in that: pier shaft rectangular in cross-section, described sizing scaffold is divided into four sections, and the cross section of each sections is the most L-shaped, and each sections ending is in turn connected to form the ring-type of cincture pier shaft.
CN201610241047.6A 2016-04-18 2016-04-18 Railway high pier body template and scaffold integrated turnover formwork segmental construction method Pending CN105887685A (en)

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CN109826104A (en) * 2019-03-19 2019-05-31 中国十七冶集团有限公司 A kind of concrete pouring construction method of pier stud overmolded seam crossing
CN110130225A (en) * 2019-04-02 2019-08-16 中铁十六局集团路桥工程有限公司 A kind of the construction operation platform hoisting frame and its construction method of Bridge High-pier
CN110468716A (en) * 2019-08-20 2019-11-19 中国铁建大桥工程局集团有限公司 Double-flexibility Y type pier construction method

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JP2011032814A (en) * 2009-08-05 2011-02-17 Ohbayashi Corp Self-elevation type form device, and replacing method for shuttering panel using the same
CN102409617A (en) * 2011-09-21 2012-04-11 天津二十冶建设有限公司 Method for constructing high pier
CN103669900A (en) * 2013-12-03 2014-03-26 东北电业管理局烟塔工程公司 Integral reinforcement construction method for outer barrel wall of chimney
CN204644884U (en) * 2015-05-22 2015-09-16 中铁八局集团昆明铁路建设有限公司 High pier over-form construction reinforced bar installs mobile stock
CN104878700A (en) * 2015-06-23 2015-09-02 广东省水利水电第三工程局有限公司 Truss and formwork

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CN109487691A (en) * 2018-10-16 2019-03-19 中铁十九局集团第二工程有限公司 Bridge rectangle variable cross-section hollow pier construction method
CN109826104A (en) * 2019-03-19 2019-05-31 中国十七冶集团有限公司 A kind of concrete pouring construction method of pier stud overmolded seam crossing
CN110130225A (en) * 2019-04-02 2019-08-16 中铁十六局集团路桥工程有限公司 A kind of the construction operation platform hoisting frame and its construction method of Bridge High-pier
CN110468716A (en) * 2019-08-20 2019-11-19 中国铁建大桥工程局集团有限公司 Double-flexibility Y type pier construction method

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