CN105442453A - Construction method for suspension bridge tower crossbeam combination support - Google Patents
Construction method for suspension bridge tower crossbeam combination support Download PDFInfo
- Publication number
- CN105442453A CN105442453A CN201510855625.0A CN201510855625A CN105442453A CN 105442453 A CN105442453 A CN 105442453A CN 201510855625 A CN201510855625 A CN 201510855625A CN 105442453 A CN105442453 A CN 105442453A
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- Prior art keywords
- bracket
- connector
- tower
- construction
- crossbeam
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- 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.)
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Classifications
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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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/02—Suspension bridges
Abstract
The invention relates to a construction method for a suspension bridge tower crossbeam combination support. When a left tower branch and a right tower branch of a bridge tower are constructed to a certain height, corbel connecting pieces are symmetrically embedded in a tower body on the opposite sides of the two tower branches; beret piece connecting pieces are embedded above the corbel connecting pieces; the corbel connecting pieces are welded with corbels; sand barrels are mounted above the corbels; bearing beams are mounted above the sand barrels; beret pieces are mounted by using the beret piece connecting pieces; template distribution beams are mounted on the beret pieces; templates and binding steel bars are mounted on the distribution beams to pour concrete on a crossbeam; after the pouring of the crossbeam is finished, the templates, the distribution beams, the beret pieces, the bearing beams, the sand barrels and corbels are removed in sequence by means of a tower crane so as to finish the construction of the crossbeam.
Description
Technical field
The invention belongs to technical field of bridge construction, be specifically related to a kind of construction method of Construction of Pylon of Long Span Suspension Bridge crossbeam.
Background technology
In the infrastructures such as highway communication, as the suspension bridge that span ability is the strongest, Chang Zuowei crosses over the first-selected bridge type of rivers,lakes and seas, high mountain gorge.Bridge tower is as the important primary structure member in suspension bridge, and for meeting the demand of main cable alignment, usual tower body is all very high, for keeping the strength and stability of bridge tower, usually establishing several crossbeam, make Liang Tazhi be linked to be entirety between the tower branch of bridge tower left and right.At present, Construction of Pylon of Long Span Suspension Bridge construction of beam generally adopts the form of construction work of floor stand.Floor stand adopts the section bars such as steel pipe to build crossbeam position from base position usually always, and support laterally need establish several horizontal-associate to be connected with tower body, to strengthen the stability of support.If beam design is very high, support must be caused also very high, required consumptive material and artificial all can be a lot, therefore adopt floor stand to there is many defects on construction period, construction safety, construction cost:
1, to set up consumes time long for support, affects construction period;
2, support takies bridge tower underlying space, unfavorable to placing of material transhipment, can not meet needing temporary traffic demand current at the bottom of tower;
3, the rack construction cycle is long, and work high above the ground is of long duration, and potential safety hazard is high;
4, support needs to construct in a large number consumptive material, and cost has high input.
For the above-mentioned problems that floor stand exists, in the urgent need to a kind of construction method not needing floor stand.
Summary of the invention
When Construction of Pylon of Long Span Suspension Bridge crossbeam adopts floor stand to construct, there is many defects in construction period, construction safety, construction cost, for many defects in the urgent need to a kind of construction method not needing floor stand, in order to shorten construction period, reduce construction consumptive material, to ensure construction safety.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of Construction of Pylon of Long Span Suspension Bridge crossbeam sectional shelf-unit construction method, is characterized in that comprising the following steps:
(1) when bridge tower left and right tower branch constructs certain altitude, symmetrical pre-buried bracket connector in the side tower body that two tower branches are relative, pre-buried beret truss connector above bracket connector;
(2) the bracket connector described in pre-buried good after, bracket connector is welded with bracket;
(3) after described bracket installs, installing above bracket and be used for leveling and unload support husky cylinder used, after described husky cylinder leveling, it being installed the spandrel girder for supporting beret truss;
(4) by beret truss ground become Pin assembled good after, utilize tower crane whole to hang onto described spandrel girder end face, described beret truss utilizes connecting rod to be connected with described beret truss connector;
(5) after described beret truss installs, installation form distribution beam above it;
(6) in distribution beam, soffit formwork is installed, colligation crossbeam baseplate reinforcing bar and part web reinforcement, basal cross section prestress pipe, outboard template and inner formword is installed, builds underplate concrete and part web concrete; Colligation residue web reinforcement and roof steel bar, install top section prestress pipe and internal mold top plate, concreting;
(7) crossbeam stretch-draw, mud jacking;
(8) utilize tower crane to remove inner formword, side template, soffit formwork, distribution beam, beret truss, spandrel girder, husky cylinder, bracket successively, complete construction of beam.
The present invention, by fixing bracket at bridge tower tower body built-in connection, supports the overarm brace system of beret truss, spandrel girder, distribution beam spelling one-tenth, to reach the object of bridge tower thwart beam non-floor-bracket construction by bracket.The present invention compares the floor-bracket construction method generally adopted at present, has following beneficial effect:
(1) cost-saving: bracket greatly reduces with the relative floor stand consumptive material of beret truss sectional shelf-unit system material therefor.
(2) reduction of erection time: utilize beret truss as rack beam, be installed to beret truss installation from bracket and form operation platform system, its activity duration is short, can save a large amount of man-hour.The assembled speed of beret truss is fast, and without the need to operations such as cutting welding, relative floor stand shaped steel used needs the operation such as cutting stock, rod member welding, and efficiency of construction is higher.
(3) working security is high: the floor stand work high above the ground time is longer, and when floor stand religion is high in addition, the structural stability of himself and safety all can be affected, and work progress cross-operation is more in addition, also increases security risk.
Accompanying drawing explanation
Fig. 1 is construction method flow chart of the present invention;
Fig. 2 is the pre-buried bracket of tower body and beret truss connector schematic diagram;
Fig. 3 installs bracket schematic diagram;
Fig. 4 bracket is arranged husky cylinder and spandrel girder schematic diagram;
Fig. 5 installs beret truss and distribution beam schematic diagram;
Fig. 6 is that distribution beam arranges plan view;
Fig. 7 is crossbeam pouring construction schematic diagram;
Fig. 8 is the view that construction of beam completes.
Detailed description of the invention
Figure 1 shows that construction method flow chart of the present invention.Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
As shown in Figure 2, in bridge tower king-post 1 work progress, when bridge tower left and right tower branch constructs certain altitude, symmetrical pre-buried bracket connector 2 in the side tower body that two tower branches are relative, pre-buried beret truss connector 3 above bracket connector.
Described bracket connector 2 comprises connector under bracket upper connector, bracket, and described beret truss connector 3 to comprise on Bei Lei tenon connector under tenon connector, Bei Lei.Described bracket connector and the pre-buried position of beret truss connector are determined according to Construction Design Schemes.
As shown in Figure 3, bracket connector 2 pre-buried good after, it welded with bracket 4, described bracket can adopt shaped steel to be welded.
As shown in Figure 4, after described bracket 4 installs, installing above bracket and be used for leveling and unload support husky cylinder 5 used, after the leveling of described husky cylinder 5, it being installed the spandrel girder 6 for supporting beret truss.
As shown in Figure 5, by beret truss 7 ground become Pin assembled good after, utilize tower crane whole to hang onto on described spandrel girder 6, described beret truss 7 utilizes connecting rod to be connected with described beret truss connector 3.After described beret truss 7 installs, installation form distribution beam 8 above it.
As shown in Figure 6, when distribution beam is installed, makes distribution beam 8 length be greater than the width of the crossbeam that will construct, hang part as construction operation platform.
As shown with 7, after distribution beam 8 is provided with, distribution beam installs soffit formwork, colligation crossbeam baseplate reinforcing bar and part web reinforcement, basal cross section prestress pipe, outboard template and inner formword are installed, build underplate concrete and part web concrete; Colligation residue web reinforcement and roof steel bar, install top section prestress pipe and internal mold top plate, concreting.
After concrete reaches design strength, carry out crossbeam stretch-draw, mud jacking, complete crossbeam 9 pouring construction.
Finally, utilize tower crane to remove inner formword, side template, soffit formwork, distribution beam, beret truss, spandrel girder, husky cylinder, bracket successively, complete construction of beam.Crossbeam 9 constructed after state as shown in Figure 8.
Claims (4)
1. a Construction of Pylon of Long Span Suspension Bridge crossbeam sectional shelf-unit construction method, is characterized in that comprising the following steps:
(1) when bridge tower left and right tower branch constructs certain altitude, symmetrical pre-buried bracket connector in the side tower body that two tower branches are relative, pre-buried beret truss connector above bracket connector;
(2) the bracket connector described in pre-buried good after, bracket connector is welded with bracket;
(3) after described bracket installs, installing above bracket and be used for leveling and unload support husky cylinder used, after described husky cylinder leveling, it being installed the spandrel girder for supporting beret truss;
(4) by beret truss ground become Pin assembled good after, utilize tower crane whole to hang onto described spandrel girder end face, described beret truss utilizes connecting rod to be connected with described beret truss connector;
(5) after described beret truss installs, installation form distribution beam above it;
(6) in distribution beam, soffit formwork is installed, colligation crossbeam baseplate reinforcing bar and part web reinforcement, basal cross section prestress pipe, outboard template and inner formword is installed, builds underplate concrete and part web concrete; Colligation residue web reinforcement and roof steel bar, install top section prestress pipe and internal mold top plate, concreting;
(7) crossbeam stretch-draw, mud jacking;
(8) utilize tower crane to remove inner formword, side template, soffit formwork, distribution beam, beret truss, spandrel girder, husky cylinder, bracket successively, complete construction of beam.
2. Construction of Pylon of Long Span Suspension Bridge crossbeam sectional shelf-unit construction method according to claim 1, it is characterized in that: described bracket connector comprises connector under bracket upper connector, bracket, described beret truss connector to comprise on Bei Lei tenon connector under tenon connector, Bei Lei.
3. Construction of Pylon of Long Span Suspension Bridge crossbeam sectional shelf-unit construction method according to claim 1, is characterized in that: described bracket is that shaped steel spelling is welded.
4. Construction of Pylon of Long Span Suspension Bridge crossbeam sectional shelf-unit construction method according to claim 1, is characterized in that: described distribution beam length is greater than beam width, utilizes and hangs part as construction operation platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510855625.0A CN105442453A (en) | 2015-11-30 | 2015-11-30 | Construction method for suspension bridge tower crossbeam combination support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510855625.0A CN105442453A (en) | 2015-11-30 | 2015-11-30 | Construction method for suspension bridge tower crossbeam combination support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105442453A true CN105442453A (en) | 2016-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510855625.0A Pending CN105442453A (en) | 2015-11-30 | 2015-11-30 | Construction method for suspension bridge tower crossbeam combination support |
Country Status (1)
| Country | Link |
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| CN (1) | CN105442453A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113417372A (en) * | 2021-07-01 | 2021-09-21 | 中铁大桥局第七工程有限公司 | Concrete tower column embedded bracket system and installation method |
| CN114057114A (en) * | 2020-08-02 | 2022-02-18 | 中交第四公路工程局有限公司 | Rapid installation method for cable tower of cable crane |
| CN114086478A (en) * | 2021-11-25 | 2022-02-25 | 中铁广州工程局集团桥梁工程有限公司 | Main tower lower cross beam construction system and method with corbels serving as temporary supports |
Citations (6)
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|---|---|---|---|---|
| DE19607952C2 (en) * | 1996-03-01 | 2000-09-07 | Roland Kehl | Support structure for supporting solid structures |
| CN101210418A (en) * | 2007-12-25 | 2008-07-02 | 赵志茹 | Non-floor-bracket construction method for suspension bridge tower frame cross beam |
| ES2352023A1 (en) * | 2008-04-03 | 2011-02-15 | Structural Research, S.L. | Procedure for assembling prefabricated concrete dimensions. (Machine-translation by Google Translate, not legally binding) |
| CN103352428A (en) * | 2013-07-06 | 2013-10-16 | 中交路桥建设有限公司 | Suspension bridge cable bent tower beam non-support construction method |
| CN104109999A (en) * | 2014-06-26 | 2014-10-22 | 中铁大桥局股份有限公司 | Construction method for bridge tower transverse beams |
| CN104532749A (en) * | 2014-12-18 | 2015-04-22 | 中铁建设集团有限公司 | Support used for construction of upper beam of main tower of suspension bridge |
-
2015
- 2015-11-30 CN CN201510855625.0A patent/CN105442453A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19607952C2 (en) * | 1996-03-01 | 2000-09-07 | Roland Kehl | Support structure for supporting solid structures |
| CN101210418A (en) * | 2007-12-25 | 2008-07-02 | 赵志茹 | Non-floor-bracket construction method for suspension bridge tower frame cross beam |
| ES2352023A1 (en) * | 2008-04-03 | 2011-02-15 | Structural Research, S.L. | Procedure for assembling prefabricated concrete dimensions. (Machine-translation by Google Translate, not legally binding) |
| CN103352428A (en) * | 2013-07-06 | 2013-10-16 | 中交路桥建设有限公司 | Suspension bridge cable bent tower beam non-support construction method |
| CN104109999A (en) * | 2014-06-26 | 2014-10-22 | 中铁大桥局股份有限公司 | Construction method for bridge tower transverse beams |
| CN104532749A (en) * | 2014-12-18 | 2015-04-22 | 中铁建设集团有限公司 | Support used for construction of upper beam of main tower of suspension bridge |
Non-Patent Citations (1)
| Title |
|---|
| 钟建锋，房金钱，王保君: "悬索桥桥塔横梁施工新技术", 《公路与汽运》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114057114A (en) * | 2020-08-02 | 2022-02-18 | 中交第四公路工程局有限公司 | Rapid installation method for cable tower of cable crane |
| CN113417372A (en) * | 2021-07-01 | 2021-09-21 | 中铁大桥局第七工程有限公司 | Concrete tower column embedded bracket system and installation method |
| CN113417372B (en) * | 2021-07-01 | 2023-02-28 | 中铁大桥局第七工程有限公司 | Concrete tower column embedded bracket system and installation method |
| CN114086478A (en) * | 2021-11-25 | 2022-02-25 | 中铁广州工程局集团桥梁工程有限公司 | Main tower lower cross beam construction system and method with corbels serving as temporary supports |
| CN114086478B (en) * | 2021-11-25 | 2023-09-08 | 中铁广州工程局集团桥梁工程有限公司 | Main tower lower cross beam construction system and method with bracket serving as temporary support |
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Application publication date: 20160330 |
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