CN110130225A - A kind of the construction operation platform hoisting frame and its construction method of Bridge High-pier - Google Patents

A kind of the construction operation platform hoisting frame and its construction method of Bridge High-pier Download PDF

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Publication number
CN110130225A
CN110130225A CN201910262965.0A CN201910262965A CN110130225A CN 110130225 A CN110130225 A CN 110130225A CN 201910262965 A CN201910262965 A CN 201910262965A CN 110130225 A CN110130225 A CN 110130225A
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CN
China
Prior art keywords
pier
construction
bracket
platform
bridge
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
Application number
CN201910262965.0A
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Chinese (zh)
Inventor
王晓岭
陈恒
张俊宏
庞拓
张记广
张拥法
杨玉国
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHINA RAILWAY 16TH GROUP ROAD AND BRIDGE ENGINEERING Co Ltd
Original Assignee
CHINA RAILWAY 16TH GROUP ROAD AND BRIDGE ENGINEERING Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CHINA RAILWAY 16TH GROUP ROAD AND BRIDGE ENGINEERING Co Ltd filed Critical CHINA RAILWAY 16TH GROUP ROAD AND BRIDGE ENGINEERING Co Ltd
Priority to CN201910262965.0A priority Critical patent/CN110130225A/en
Publication of CN110130225A publication Critical patent/CN110130225A/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
    • 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
    • E01D21/00Methods or apparatus specially adapted for erecting or assembling bridges

Abstract

The invention discloses a kind of construction operation platform hoisting frames of Bridge High-pier, utilize the property of concrete anti-compression, pre-buried pipeline places rod iron in pier stud, and I-steel is laid with as being supported on the basis of rod iron, groined type bracket is made, an operation platform that can be integrally promoted is formed, makes it with the raising of pier stud come Synchronous lifting using chain block drawknot bracket and pier stud main reinforcement, above structure avoids the complexity of constructing structure, reduces cost;Meanwhile the invention also discloses the construction method of above-mentioned hoisting frame, this method strong operability is highly-safe.

Description

A kind of the construction operation platform hoisting frame and its construction method of Bridge High-pier
Technical field
The present invention relates to Bridge High-pier technical field of construction, and in particular to the construction operation platform hoisting frame of Bridge High-pier and The construction method of hoisting frame.
Background technique
Currently, more and more high pier Bridge alternatives are being used and are applying with the development construction of highway in China network Work construction.It in previous bridge cross-section Bridge Pier Construction, mostly uses set up steel pipe support as operation platform greatly, and with well word Frame is promoted, but for the high pier of 30~80m, and higher cost not only cumbersome using traditional construction method, construction period are long, Safety also no guarantee, if using hydraulic climbing formwork, and because the number of turnover is few, it appears it is not economical enough, therefore, need to find reasonable height The new technology of effect, new process come solve Construction of High Pier platform set up and Upgrade Problem, to meet the construction needs of high pier.
Summary of the invention
For deficiency present in existing above-mentioned background, the construction operation hoisting frame conduct of Bridge High-pier provided by the invention High pier promotes platform, securely, safety;Meanwhile the construction method of the construction operation hoisting frame of Bridge High-pier provided by the invention, pole Big shortens the duration, avoids triviality and its high cost problem of bring, and operation implementation is strong.
To achieve the goals above, the present invention is to realize by the following technical solutions:
A kind of construction operation platform hoisting frame of Bridge High-pier provided by the invention, comprising:
Two Support brackets are symmetrically set in each form unit top of pier shaft;
Groined type platform bracket, it is fixed-type by least two layers of bracket transverse and longitudinal, it is erected on the Support bracket, and be located at Two lateral bracket of lower part of groined type bracket is using securing member to drawing;Four chain blocks are respectively arranged on the groined type bracket Four Angle Positions;
Operation platform frame, several layers are set to groined type platform bracket top, and operation platform height is every greater than pier shaft One mould pours height.
Optionally, described two Support brackets are set in the pre-buried position pipeline of correspondence below template in pier shaft.
Optionally, the operation platform frame uniformly fixes vertical supporting bar on the groined type platform bracket, vertically Support rod is horizontally disposed with backing plank platform every 1m~3m from bottom to top.
Optionally, cross-bridging oblique pull is diagonally arranged in four sides of the operation platform frame to fix.
Optionally, the Support bracket is rod iron;The bracket of the groined type platform bracket is I-steel;I-steel is away from pier Body all keeps 0.3m~0.8m.
Optionally, the securing member is fining twisted steel.
Optionally, operation platform frame side is equipped with ladder.
The present invention also provides a kind of construction methods of the construction operation platform hoisting frame of Bridge High-pier, including walk as follows It is rapid:
(1) it supports, support rod is placed in pier stud, and using support rod as bracket basis;
(2) it is laid with bracket, production groined type bracket is layed on support rod, to form the operation platform that can be integrally promoted;
(3) short distance mechanical lifting apparatus is set, it is synchronous using chain block drawknot bracket hanging point and pier stud top main reinforcement The drawing of tensioning chain block makes bracket uniform lift to designated position.
Optionally, long along pier shaft below the first piece of template of pier shaft from top to bottom before pier shaft the first mould template assembly The pre-buried rod iron of axis direction places pipeline;
After the completion of the first mould concreting, finds pre-buried pipeline and place rod iron.
Optionally, under pier shaft before mould construction, four construction personnel are located at the reinforcing bar basket at four angles of pier shaft, unclamp The drawknot fining twisted steel at both ends, and with the hanging point and pier shaft part main reinforcement synchronous uniform velocity on chain block drawknot pedestal I-steel Manual tensioning cucurbit, promotes shelf, removes rod iron;After shelf is promoted to designated position, rod iron is reapposed as support, And the fining twisted steel at both ends is screwed, after fixing, chain block is removed, completes primary promoted.
Technical solution of the present invention has the advantages that
The embodiment of the invention provides a kind of construction operation platform hoisting frames of Bridge High-pier, utilize the property of concrete anti-compression Matter, pre-buried pipeline places rod iron in pier stud, and as support manufacturing bracket, uses chain block drawknot bracket and pier stud master Muscle makes it carry out the operation platform of Synchronous lifting with the raising of pier stud;Specifically, operation platform is to be laid on the basis of Support bracket I-steel makes groined type bracket, forms an operation platform that can be integrally promoted.Further, the one of above-mentioned operation platform Determine in space, welding support net, and setting several layers construction pedestrian passage wherein.Above structure fastness is strong, and safety obtains It is ensured to complete, it is pre- by setting up rod iron in the predeterminated position of the every mould of pier shaft before in the work progress of 30~80 meters of high piers Pipe laying road, every to be promoted once, rod iron is placed in the pre-buried pipeline of next mould, plays the effect of safety supports.
While the present invention utilizes the raising of pier shaft, with Synchronous lifting operation platform, solves Construction of High Pier platform and take If intricate operation, long in time limit, problem at high cost;Construction method strong operability of the invention, it is highly-safe.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is hoisting frame overall structure diagram of the present invention;
Fig. 2 is the partial enlargement diagram of Fig. 1;
Fig. 3 is hoisting frame structural side view of the present invention;
Fig. 4 is hoisting frame structure top view of the present invention;
Fig. 5 is hoisting frame structure three-dimensional view of the present invention.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical", The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments It can be combined with each other at conflict.
Embodiment 1
If the present embodiment is by taking Lu Liuhe bridge is located at that Yunnan is military and seeks three bid sections of high speed as an example, shown in Figure 1, the construction Shape is complicated, and two width of bridge or so is kept completely separate.Left and right width main span degree is 130m, the left long 284m of line bridge, the right long 283.5m of line bridge.It should Bridge has two main piers, respectively 1#, 2# bridge pier, pier height be respectively left width 1# pier 56m, left width 2# pier 51m, right width 1# pier 45m, Right width 2# pier 46m, pier stud sectional dimension is 800cm × 200cm.Four pier studs of two main piers of bridge are more than 40m High pier, constructed when specific implementation using technical solution of the present invention.
Using the property of concrete anti-compression, longitudinal pre-buried 2 pipelines place rod iron 2 in pier shaft, and 1 both ends of rod iron, which are stretched out, to be made For support, placed it on rod iron 2 in 1 liang of big surface side lateral arrangement I-steel 3 of pier shaft, and in two small surface side finish rolling spiral shell of pier shaft 4 pairs of line steel two I-steel 3 of drawing form it into an entirety and fixation while being close to pier shaft as operation platform sole plate, with Based on this two I-steel, groined type platform is set up, and is laid with plank 6 and foot guard plate on it as pedestrian passage, herein Vertical steel pipe is uniformly welded on the basis of platform do support rod and be layered and set up same platform, form being promoted for entirety Shelf.
Further, which is higher by the every mould of pier shaft 1 and pours height 4m or so, and four sides is done bridging oblique pull and fixed.Under Before the construction of one mould, drawknot nodes are set at four angles of shelf, the other end is separately fixed in the main reinforcement of top of concrete, using pulling Cucurbit is simultaneously uniformly in shelf quadrangle drawknot, after making shelf Synchronous lifting to designated position, repeats the operation started, rod iron is set It is supported in reserved pipeline, and anchors the fining twisted steel at both ends, reach fixed function, remove chain block, complete one Secondary promotion.
There are certain distances to facilitate construction to make template overmolded hoisting passage to pier shaft for platform.
Specifically, by taking left width 1# pier as an example, include the following steps:
(1) it is 9m that the every mould of pier stud, which pours height, and every piece of form height is 2.25m, and the is stood after the completion of the pier cushion cap pours When one mould reinforcing bar (0~9m), pre-buried 1 diameter is distinguished in the high 6m of 8m pier stud identity distance cushion cap, two side positions away from pier stud edge 1m For the pvc pipe of 3.5cm.
(2) after the completion of molding pours, following 3 pieces of templates are removed, reserving hole channel is found and puts on the rod iron 2 that diameter is 3.2cm, Rod iron length is 3m, stretches out each 0.5m in pier stud both ends, lifts I36 and length as the I-steel 3 of 12m and is respectively placed in the two of rod iron On end, and 1 fining twisted steel 4 drawknot, two I-steel is placed in the pier stud 2m identity distance position pier stud 0.2m;In this I36 I-steel On the basis of, the I25 I-steel 5 that two root longs are 5m is respectively placed along the face pier stud 2m both ends, spacing 0.6m, inside I-steel is away from pier Body 0.5m, this I-steel and bottom I36 I-steel firm welding, after reuse I36 I-steel 5 that 4 root longs are 11m along the face 8m cloth It sets, spacing forms groined type bracket with the face 2m.
(3) 4 cucurbit hanging points and four reinforcing bar Hanging Baskets are set, in the 0.5m cavity bottom welded reinforcement mesh sheet close to pier stud It reveals all the details, prevents sundries from falling.
(4) laying plank is as pedestrian passage in the 0.6m wide scope among two I-steel, the face 8m on I-steel Every every 1.2m in the face 1.6m, 2m (being 0.6m at channel) welds the vertical seamless steel pipe that a diameter is 4.8cm;Vertical height is Every 2m overlap joint is two rows of two to carry out laying plank 6 to steel pipe, and by bottom laying method in length and breadth, and 7 layers of bracket for forming high 13.5m are flat Platform, pedestrian passage side setting ladder 7 for being used when construction up and down, while four sides it is diagonal with steel pipe to draw enhance it is whole Body and stability, and it is peripheral with safety net covering bracket, and bracket main body is basically completed at this time.
(5) use this bracket for operation platform when 9~18m of pier shaft constructs, and pre-buried 2 pvc pipes at 15m, position At 6m.Before the construction of 18~27m pier stud, the lower 3 pieces of templates of 9~18m pier stud are removed, are hung using chain block connection bottom bracket Point and pier stud top surface main reinforcement unclamp the fining twisted steel of drawknot I-steel, rear 4 construction personnel synchronous tension chain block, support After frame starts promotion, rod iron is removed, continuing tensioning cucurbit promotes bracket at pier stud 15m, places rod iron, slowly unclamps calabash Reed is stably placed at bracket on rod iron, screws both ends fining twisted steel, fixes bracket locations, removes cucurbit, completes bracket It is promoted.
(6) subsequent a few moulds repeat aforesaid operations, until pier stud 56m all pours completion.
While the present invention utilizes the raising of pier shaft, Synchronous lifting operation platform solves Construction of High Pier putting up platform Intricate operation, long in time limit, problem at high cost;And strong operability, it is highly-safe.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or It changes still within the protection scope of the invention.

Claims (10)

1. a kind of construction operation platform hoisting frame of Bridge High-pier characterized by comprising
Two Support brackets are symmetrically set in each form unit top of pier shaft;
Groined type platform bracket, it is fixed-type by least two layers of bracket transverse and longitudinal, it is erected on the Support bracket, and be located at well word Two lateral bracket of lower part of shape bracket is using securing member to drawing;Four chain blocks are respectively arranged on the four of the groined type bracket A Angle Position;
Operation platform frame, several layers are set to groined type platform bracket top, and operation platform height is greater than each mould of pier shaft Pour height.
2. the construction operation platform hoisting frame of Bridge High-pier according to claim 1, which is characterized in that described two supports Bracket is set in the pre-buried position pipeline of correspondence below template in pier shaft.
3. the construction operation platform hoisting frame of Bridge High-pier according to claim 1 or 2, which is characterized in that the construction Paralell uniformly fixes vertical supporting bar on the groined type platform bracket, and vertically support rod is from bottom to top every 1m~3m Horizontally disposed backing plank platform.
4. the construction operation platform hoisting frame of Bridge High-pier according to claim 3, which is characterized in that flat in the construction Four sides of rack are diagonally arranged cross-bridging oblique pull and fix.
5. the construction operation platform hoisting frame of Bridge High-pier according to claim 1, which is characterized in that the Support bracket For rod iron;The bracket of the groined type platform bracket is I-steel;I-steel all keeps 0.3m~0.8m away from pier shaft.
6. the construction operation platform hoisting frame of Bridge High-pier according to claim 1, which is characterized in that the connection fastening Part is fining twisted steel.
7. the construction operation platform hoisting frame of Bridge High-pier according to claim 1, which is characterized in that the operation platform Frame side is equipped with ladder.
8. a kind of construction method of the construction operation platform hoisting frame of Bridge High-pier, which is characterized in that
(1) it supports, support rod is placed in pier stud, and using support rod as bracket basis;
(2) it is laid with bracket, production groined type bracket is layed on support rod, to form the operation platform that can be integrally promoted;
(3) short distance mechanical lifting apparatus is set, chain block drawknot bracket hanging point and pier stud top main reinforcement, synchronous tension are utilized Chain block drawing makes bracket uniform lift to designated position.
9. the construction method of the construction operation platform hoisting frame of Bridge High-pier according to claim 8, which is characterized in that
Before pier shaft the first mould template assembly, along pier shaft long axis direction pre-buried steel below the first piece of template of pier shaft from top to bottom Stick places pipeline;
After the completion of the first mould concreting, finds pre-buried pipeline and place rod iron.
10. the construction method of the construction operation platform hoisting frame of Bridge High-pier according to claim 8, which is characterized in that Under pier shaft before mould construction, four construction personnel are located at the reinforcing bar basket at four angles of pier shaft, the drawknot finish rolling of loose ends Screw-thread steel, and on chain block drawknot pedestal I-steel hanging point and the manual tensioning cucurbit of pier shaft part main reinforcement synchronous uniform velocity, Shelf is promoted, rod iron is removed;After shelf is promoted to designated position, rod iron is reapposed as support, and screw both ends Fining twisted steel after fixing, removes chain block, completes primary promoted.
CN201910262965.0A 2019-04-02 2019-04-02 A kind of the construction operation platform hoisting frame and its construction method of Bridge High-pier Pending CN110130225A (en)

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CN201910262965.0A CN110130225A (en) 2019-04-02 2019-04-02 A kind of the construction operation platform hoisting frame and its construction method of Bridge High-pier

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN110700102A (en) * 2019-10-12 2020-01-17 重庆建工建筑产业技术研究院有限公司 Construction method of prestressed steel structure front-pull rear-lock cast-in-place platform

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