CN103628504B - The method of attachment of a kind of pin-connected panel prefabricated reinforced concrete platform structure node under water - Google Patents
The method of attachment of a kind of pin-connected panel prefabricated reinforced concrete platform structure node under water Download PDFInfo
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- CN103628504B CN103628504B CN201310633999.9A CN201310633999A CN103628504B CN 103628504 B CN103628504 B CN 103628504B CN 201310633999 A CN201310633999 A CN 201310633999A CN 103628504 B CN103628504 B CN 103628504B
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Abstract
The invention discloses the method for attachment of a kind of pin-connected panel prefabricated reinforced concrete platform structure node under water, utilize the preformed pile of band hollow hole as platform base and column, preformed pile is installed the prefabricated cushion cap that has endoporus, assembled precast beam on prefabricated cushion cap, preformed pile, prefabricated cushion cap and precast beam assembled after surround a cavity, precast reinforced cage is inserted in this cavity, colligation node upper reinforcement, node template is installed and pours into a mould node underwater concrete, thus by preformed pile, prefabricated cushion cap and precast beam three are connected and fixed, realize node reliable, effectively, quick connection, and then complete platform main body construction under water.It has abandoned traditional foundation ditch cofferdam and structure cast-in-place construction method, greatly reduces construction cost, accelerates construction speed.Therefore, it is the development and improvement construction method in this field not only, also has huge economic benefit and an important realistic meaning.
Description
Technical field
The present invention relates to the construction method that underwater platform in Construction Technology field is built, particularly relate to the method for attachment of a kind of pin-connected panel prefabricated reinforced concrete platform structure node under water.
Background technology
The utilization of water balcony on garden landscape very extensive, it extends to the rivers and lakes water surface from land, is to make visitor can the sight seeing and pastime platform of more convenient appreciation rivers and lakes scenery.Platform end face, is then dipped in water during the flood passage phase a little more than the water surface when ordinary water level.Platform is generally reinforced concrete structure, adopts cast-in-place method to construct in dry season.If because aggregate scheduling needs to construct when ordinary water level, generally adopt cofferdam method construction.The cofferdam of building must be removed in time after engineering, and therefore cofferdam method construction cost is high and the cycle is long.If platform structure adopts prefabrication to make, scene is carried out assembled, then can remove cofferdam construction operation from, greatly reduces construction cost and shortens the duration.But now prefabricated fine strain of millet, plate, post are all in assembled under water, the connection of its node is very crucial, determines the success or failure of engineering.Therefore, find that a technical feasibility, technique are simple, cheap, joint connecting method quick, reliable for effect of constructing, there is realistic meaning.
Summary of the invention
Technical problem to be solved by this invention be to provide a kind of fast, effectively, the method for attachment of prefabricated reinforced concrete platform structure node under water reliably, with the assembling construction under water of implementation platform structure.
The solution that the present invention solves its technical problem is: the method for attachment of a kind of pin-connected panel prefabricated reinforced concrete platform structure node under water, comprises the following steps:
(1) construction of prefabricated piles: press construction requirement injection preformed pile in precalculated position;
(2) prefabricated cushion cap lifting: guarantee that it surfaces in the hollow hole adopting backstay to insert preformed pile under water, the prefabricated cushion cap with endoporus is fallen to being arranged on preformed pile through backstay;
(3) precast beam lifting: precast beam is lifted on request on prefabricated cushion cap under water, the connecting reinforcement of the good prefabricated cushion cap of colligation and precast beam;
(4) connected node process: insert precast reinforced cage in the cavity of preformed pile, prefabricated cushion cap and precast beam install rear formation in place, colligation node upper reinforcement, node template is installed, builds node underwater concrete preformed pile, prefabricated cushion cap and precast beam three to be connected and fixed;
(5) precast plate lifting: precast plate is arranged on precast beam, and carries out follow-up surface layer and mat formation.
Be further used as the improvement of technical solution of the present invention, in step (1), described preformed pile is the precast square pile that prestressed reinforced concrete pipe pile or top have hollow hole.
Be further used as the improvement of technical solution of the present invention, in step (2), described backstay is the steel pipe that lower end has inverted round stage, and the hollow hole size of described inverted round stage and preformed pile is suitable.
Be further used as the improvement of technical solution of the present invention, in step (4), the main muscle in described precast reinforced cage top is elongated, and bottom is deeply not less than 120cm to the hollow hole of preformed pile, and bottom is provided with the thick round plate of 3mm.
Be further used as the improvement of technical solution of the present invention, in step (4), described node template adopts wooden model or sizing punching block, and surface more than 30cm on its top.
Be further used as the improvement of technical solution of the present invention, in step (4), described underwater concrete is C30 expansion pea gravel concreten.
The invention has the beneficial effects as follows: the method for attachment of pin-connected panel prefabricated reinforced concrete platform structure of the present invention node under water, after by preformed pile, prefabricated cushion cap and precast beam successively hoisted in position, utilize the cavity that three is spliced to form, precast reinforced cage is inserted in this cavity, colligation node upper reinforcement, node template build node underwater concrete is installed, and then preformed pile, prefabricated cushion cap and precast beam three are connected and fixed, realize node reliably, effectively, fast to connect, thus complete platform main body construction under water.The present invention has abandoned traditional foundation ditch cofferdam and cast-in-place construction method, greatly reduces construction cost, accelerates construction speed.Therefore, it is the development and improvement construction method in this field not only, also has huge economic benefit and an important realistic meaning.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is described further;
Fig. 1 is the schematic diagram that in example of the present invention, backstay inserts preformed pile hollow hole;
Fig. 2 is that in example of the present invention, prefabricated cushion cap is arranged on the schematic diagram on preformed pile;
Fig. 3 is the sectional drawing of prefabricated cushion cap in example of the present invention;
Fig. 4 is the plan view of prefabricated cushion cap in example of the present invention;
Fig. 5 is the scheme of installation of example interior joint reinforcing bar of the present invention and node template;
Fig. 6 is the sectional drawing of A-A in Fig. 5;
Fig. 7 is the schematic diagram of building node underwater concrete in example of the present invention.
Detailed description of the invention
Referring to figs. 1 through Fig. 7, the method for attachment of a kind of pin-connected panel prefabricated reinforced concrete platform structure node under water, comprises the following steps:
(1) construction of prefabricated piles: press construction requirement injection preformed pile 1 in precalculated position;
(2) prefabricated cushion cap lifting: guarantee that it surfaces in the hollow hole 11 adopting backstay 2 to insert preformed pile 1 under water, the prefabricated cushion cap 3 with endoporus 31 is fallen to being arranged on preformed pile 1 through backstay 2;
(3) precast beam lifting: precast beam 4 is lifted on request on prefabricated cushion cap 3 under water, the connecting reinforcement of the good prefabricated cushion cap 3 of colligation and precast beam 4;
(4) connected node process: insert precast reinforced cage 6 in the cavity 5 formed after preformed pile 1, prefabricated cushion cap 3 and precast beam 4 installation in position, colligation node upper reinforcement, node template 7 is installed, builds node underwater concrete preformed pile 1, prefabricated cushion cap 3 and precast beam 4 three to be connected and fixed;
(5) precast plate lifting: precast plate is arranged on precast beam 4, and carries out follow-up surface layer and mat formation.
The method of attachment of this pin-connected panel prefabricated reinforced concrete platform structure node under water, after by preformed pile 1, prefabricated cushion cap 3 and precast beam 4 successively hoisted in position, the cavity 5 utilizing three to be spliced to form, precast reinforced cage 6 is inserted in this cavity 5, colligation node upper reinforcement, node template build node underwater concrete is installed, and then preformed pile 1, prefabricated cushion cap 3 and precast beam 4 three are connected and fixed, realize node and reliably, effectively, fast connect, thus complete platform main body construction under water.The present invention has abandoned traditional foundation ditch cofferdam and cast-in-place construction method, greatly reduces construction cost, accelerates construction speed.
As the preferred embodiment of the present invention, in step (1), preformed pile 1 generally adopts prestressed reinforced concrete pipe pile.Under special circumstances, according to structural requirement, preformed pile 1 also can adopt precast square pile, and now precast square pile top should be provided with hollow hole 11, installs to facilitate prefabricated cushion cap 3.Preformed pile 1 adopts pile driving barge to carry out hydrolocation and marine piling.According to design elevation, need carry out cutting stake in water to preformed pile 1 pile crown exceeded.
Preformed pile 1 in the present invention while as pile foundation, also doubles as the column of its superstructure.Preformed pile normally as structure pile foundation and be embedded in underground, column is then a part for structure itself, is on pile foundation and cushion cap.Reinforced concrete upright column adopts cast-in-place method to construct usually, is difficult to process and seldom prefabrication construction because its structural node connects.And the present invention by chance utilizes preformed pile 1 while as pile foundation, also double as the column of its superstructure, not only solve water central post construction difficult problem dexterously, also greatly save column construction cost, shorten the construction period.
As the preferred embodiment of the present invention, in step (2), backstay 2 has the steel pipe of inverted round stage 21 for lower end, and the effect of backstay 2 is: when carrying out prefabricated cushion cap 3 and installing, determine the position of preformed pile 1 under water fast, and carry out accurate centering.It is guarantee that backstay 2 can stretch in the hollow hole 11 of preformed pile 1 smoothly that lower end arranges inverted round stage 21, just snap in but be unlikely in complete falling hole, to guarantee that backstay 2 surfaces as mark, inverted round stage 21 is suitable with reserved hollow hole 11 size of preformed pile 1.
As the preferred embodiment of the present invention, in step (2), carry out wharf's pavement quality to the bore area of prefabricated cushion cap 3, the underwater concrete of building so that follow-up and prefabricated cushion cap 3 inwall are better bonded together.
As the preferred embodiment of the present invention, in step (4), the main muscle in precast reinforced cage 6 top is elongated, and bottom is deeply not less than 120cm to the hollow hole 11 of preformed pile 1, and bottom is provided with the thick round plate of 3mm.Round plate 9 follow-uply plays back cover effect when building underwater concrete.
As the preferred embodiment of the present invention, in step (4), node template 7 adopts wooden model or sizing punching block, and wooden form adopts wooden a tree, used in making timber for boats 10 and Screw arbor with nut at both-ends 8 to fix, and surface more than 30cm on its top.
As the preferred embodiment of the present invention, underwater concrete is generally C30 expansion pea gravel concreten, adopts mixed earth construction technology under water.
As the preferred embodiment of the present invention, in step (2), (3) and (4), the sinking of prefabricated cushion cap 3 and precast beam 4 is in place, must send frogman to assist installation in joint reinforcing bar colligation and node template installation process.
More than that better embodiment of the present invention is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent modifications or replacement under the prerequisite without prejudice to spirit of the present invention, and these equivalent modification or replacement are all included in the application's claim limited range.
Claims (5)
1. a method of attachment for pin-connected panel prefabricated reinforced concrete platform structure node under water, is characterized in that, comprise the following steps:
(1) construction of prefabricated piles: press construction requirement injection preformed pile in precalculated position;
(2) prefabricated cushion cap lifting: guarantee that it surfaces in the hollow hole adopting backstay to insert preformed pile under water, the prefabricated cushion cap with endoporus is fallen to being arranged on preformed pile through backstay, after installing, in the endoporus of prefabricated cushion cap described in the locally embedding of preformed pile top; Described backstay is the steel pipe that lower end has inverted round stage, and the hollow hole size of described inverted round stage and preformed pile is suitable;
(3) precast beam lifting: precast beam is lifted on request on prefabricated cushion cap under water, the connecting reinforcement of the good prefabricated cushion cap of colligation and precast beam;
(4) connected node process: insert precast reinforced cage in the cavity of preformed pile, prefabricated cushion cap and precast beam install rear formation in place, colligation node upper reinforcement, node template is installed, build node underwater concrete preformed pile, prefabricated cushion cap and precast beam three to be connected and fixed, the main muscle in described precast reinforced cage top is elongated, bottom is deeply not less than 120cm to the hollow hole of preformed pile, and bottom is provided with the thick round plate of 3mm;
(5) precast plate lifting: precast plate is arranged on precast beam, and carries out follow-up surface layer and mat formation.
2. the method for attachment of pin-connected panel prefabricated reinforced concrete platform structure according to claim 1 node under water, it is characterized in that: in step (1), described preformed pile is the precast square pile that prestressed reinforced concrete pipe pile or top have hollow hole.
3. the method for attachment of pin-connected panel prefabricated reinforced concrete platform structure according to claim 1 node under water, is characterized in that: in step (2), carries out wharf's pavement quality to the bore area of prefabricated cushion cap.
4. the method for attachment of pin-connected panel prefabricated reinforced concrete platform structure according to claim 1 node under water, is characterized in that: in step (4), and described node template adopts wooden model or sizing punching block, and surface more than 30cm on its top.
5. the method for attachment of pin-connected panel prefabricated reinforced concrete platform structure according to claim 1 node under water, it is characterized in that: in step (4), described underwater concrete is C30 expansion pea gravel concreten.
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| CN201310633999.9A CN103628504B (en) | 2013-11-28 | 2013-11-28 | The method of attachment of a kind of pin-connected panel prefabricated reinforced concrete platform structure node under water |
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| CN201310633999.9A CN103628504B (en) | 2013-11-28 | 2013-11-28 | The method of attachment of a kind of pin-connected panel prefabricated reinforced concrete platform structure node under water |
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| CN103628504B true CN103628504B (en) | 2016-01-20 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105113385A (en) * | 2015-08-12 | 2015-12-02 | 刘文海 | Prefabricated steel tube high-strength concrete column pier and preparation method thereof |
| CN105970993B (en) * | 2016-06-30 | 2018-11-27 | 上海勘测设计研究院有限公司 | The construction method of the underwater connection structure of prefabricated pile and prefabricated cushion cap |
| CN106930275A (en) * | 2017-04-26 | 2017-07-07 | 江苏方园桩业有限公司 | Quickly dismantled square pile |
| CN107975059A (en) * | 2018-01-12 | 2018-05-01 | 中交第三航务工程勘察设计院有限公司 | A kind of assembled pile foundation wharfs structure and its construction method |
| CN108894116B (en) * | 2018-07-24 | 2020-02-14 | 中铁十局集团第五工程有限公司 | Prefabricated stand column assembling construction method |
| CN109098208B (en) * | 2018-08-31 | 2024-04-26 | 郭毅轩 | Submarine tunnel and construction method thereof |
| CN109518685B (en) * | 2018-11-14 | 2021-05-04 | 天津中海水利水电工程有限公司 | Underwater precast pile structure and construction method thereof |
| CN110273415A (en) * | 2019-04-25 | 2019-09-24 | 上海市政建设有限公司 | Prefabricated tubular pile and prefabricated foundation rigid connection structure and method |
| CN112281750A (en) * | 2020-11-05 | 2021-01-29 | 浙江江河建设有限公司 | Quick pin-connected panel pile shore protection structure |
| CN114045857B (en) * | 2021-12-06 | 2022-12-20 | 国网河北省电力有限公司沧州供电分公司 | Connecting structure of pipe pile and prefabricated bearing platform and installation and construction method of pipe pile and prefabricated bearing platform |
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| FR2629847B1 (en) * | 1988-04-12 | 1993-03-12 | Leduc Ste Nle | PROCESS FOR THE ANCHORAGE OF AN ELONGATED MEMBER, PARTICULARLY A PILING IN A SOIL ON HARD TERRAIN |
| CN200985507Y (en) * | 2006-09-26 | 2007-12-05 | 徐东强 | Concrete bottom closing, barrel (pipe) pile with pile driving helmet and pile wing |
| CN101289861B (en) * | 2008-04-10 | 2010-08-11 | 中交三航局第二工程有限公司 | Pile foundation construction method for foundation ditch in water |
| CN201457716U (en) * | 2009-08-06 | 2010-05-12 | 中船第九设计研究院工程有限公司 | Connection structure of box girder and tubular pile |
| CN201722690U (en) * | 2010-07-06 | 2011-01-26 | 陕西建工集团机械施工有限公司 | Elastic ventilation pile cap |
| CN102134854B (en) * | 2011-02-16 | 2012-08-22 | 中交二航局第四工程有限公司 | Slipway underwater pile foundation and construction method thereof |
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