CN113718625B - Construction method for cable-free beam section of tower area of composite beam cable-stayed bridge - Google Patents
Construction method for cable-free beam section of tower area of composite beam cable-stayed bridge Download PDFInfo
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- CN113718625B CN113718625B CN202111147124.9A CN202111147124A CN113718625B CN 113718625 B CN113718625 B CN 113718625B CN 202111147124 A CN202111147124 A CN 202111147124A CN 113718625 B CN113718625 B CN 113718625B
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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
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/04—Cable-stayed bridges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
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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
- E01D19/00—Structural or constructional details of bridges
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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
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
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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
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/10—Cantilevered erection
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- Structural Engineering (AREA)
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- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a construction method of a cable-free beam section in a tower area of a composite beam cable-stayed bridge, which comprises the following steps: 1. mounting a temporary cantilever hanger; 2. mounting the middle beam section; 3. mounting a first side span beam section; 4. temporarily fixing the first side span beam section; 5. mounting a main span I beam section; 6. temporarily fixing a first main span beam section; 7. and (4) dismantling the temporary cantilever crane and the temporary cable. The invention utilizes the mode of combining and matching the temporary cantilever hanger, the temporary cable and the tower crane on the tower body bearing platform to hoist the cable-free beam section in the tower area, does not use a floating crane, does not need to be provided with an assembling bracket, does not occupy a main channel, reduces the construction cost, improves the construction period and has low safety risk.
Description
Technical Field
The invention belongs to the technical field of construction of a cable-free beam section in a tower area, and particularly relates to a construction method of a cable-free beam section in a tower area of a composite beam cable-stayed bridge.
Background
With the rapid development of bridges across the sea and the river, the application of the composite beam cable-stayed bridge to the crossing of large rivers is more and more, particularly to the crossing of rivers with higher channel grade.
In order to accelerate the construction of the cable-free beam section in the tower area, the floating crane and support splicing method is widely applied to the construction of the cable-free beam section in the cable-stayed bridge tower area.
At present, the construction of the cable-free beam section of the superposed beam cable-stayed bridge on the river in China mostly adopts a floating crane and support assembly method, but the method can occupy a main channel and has the influence on navigation of other ships.
Disclosure of Invention
The invention aims to solve the technical problem that the defects in the prior art are overcome, and the construction method for the cable-free beam section in the tower area of the composite beam cable-stayed bridge is provided.
In order to solve the technical problems, the invention adopts the technical scheme that: a construction method for a cable-free beam section in a tower area of a composite beam cable-stayed bridge is characterized by comprising the following steps:
step one, installing a temporary cantilever hanger: arranging a side span trestle on the tower body bearing platform close to the side span, arranging a main span trestle on the tower body bearing platform close to the main span, mounting a tower crane on the tower body bearing platform, and mounting a temporary cantilever hanger on the upper cross beam by using the tower crane;
the temporary cantilever hanger comprises two Bailey beams which are arranged at the top of the upper cross beam in parallel along the extending direction of the bridge body, and two ends of each Bailey beam are respectively provided with a winch;
step two, mounting the intermediate beam section: transporting the middle beam section to the side-span trestle, transporting the middle beam section to the position right below the hanging point of the temporary cantilever hanger through a crawler crane on the side-span trestle, hoisting the middle beam section to the installation position by using a winch, and accurately installing the middle beam section on the lower cross beam through the cooperation of a tower crane;
step three, mounting of a side span I beam section: transporting the first side span beam section to a side span trestle, transporting the first side span beam section to a position right below a temporary cantilever hanger lifting point through a crawler crane on the side span trestle, lifting the first side span beam section by using a winch, and connecting the first side span beam section with a middle beam section by using a tower crane until the first side span beam section and the middle beam section are installed in place;
step four, temporarily fixing the side span I beam section: hoisting a side span anchoring end anchor box and a side span tensioning end anchor box by using a tower crane, after hoisting is finished, arranging the side span tensioning end anchor box on a side girder of a side span I beam section, arranging the side span anchoring end anchor box on the top of a tower column close to the side span side, and installing a side span temporary cable by using the tower crane again, wherein one end of the side span temporary cable is fixed on the top of the tower column close to the side span side through the side span anchoring end anchor box, and the other end of the side span temporary cable is fixed on the side span I beam section through the side span tensioning end anchor box;
tensioning the side span temporary cable after the side span temporary cable is installed;
step five, mounting a main span I beam section: transporting the first main-span beam section to a main-span trestle, transporting the first main-span beam section to a position right below a temporary cantilever hanger lifting point through a crawler crane on the main-span trestle, lifting the first main-span beam section by using a winch, and connecting the first main-span beam section with the middle beam section by using a tower crane until the first main-span beam section and the middle beam section are installed in place;
step six, temporarily fixing the first main span beam section: hoisting a main span anchoring end anchor box and a main span tensioning end anchor box by using a tower crane, after hoisting is finished, arranging the main span tensioning end anchor box on a side girder of a main span I beam section, arranging the main span anchoring end anchor box on the top of a tower column close to the main span side, and installing a main span temporary cable by using the tower crane again, wherein one end of the main span temporary cable is fixed on the top of the tower column close to the main span side through the main span anchoring end anchor box, and the other end of the main span temporary cable is fixed on the main span I beam section through the main span tensioning end anchor box;
tensioning the main-span temporary cable after the installation of the main-span temporary cable is finished, and completing construction of a cable-free beam section in a tower area of the composite beam cable-stayed bridge;
seventhly, dismantling the temporary cantilever hanger and the temporary cable: after the construction of the cable-free beam section of the superposed beam cable-stayed bridge tower area is completed, the temporary cantilever hangers are dismantled one by adopting a tower crane, a winch is dismantled firstly, and then the Bailey beam is dismantled;
and after entering the permanent cables, dismantling the side span temporary cables and the main span temporary cables.
The construction method of the non-cable beam section in the tower area of the composite beam cable-stayed bridge is characterized by comprising the following steps of: and the bottom of the upper cross beam is provided with a shoulder pole beam under the Bailey beam, and the Bailey beam and the corresponding shoulder pole beam are fastened through a Bailey beam fastener.
The construction method of the non-cable beam section in the tower area of the composite beam cable-stayed bridge is characterized by comprising the following steps of: the bailey beam fastener comprises a precision-rolled threaded steel fastener.
The construction method of the non-cable beam section in the tower area of the composite beam cable-stayed bridge is characterized by comprising the following steps of: the four winches extend out of four steel wire ropes respectively, and the four steel wire ropes are a first steel wire rope, a second steel wire rope, a third steel wire rope and a fourth steel wire rope respectively.
The construction method of the non-cable beam section in the tower area of the composite beam cable-stayed bridge is characterized by comprising the following steps of: in the fifth step, the installation of the first main span beam section can be completed by adopting a bridge deck crane, and the process is as follows: transporting the first main-span beam section to a first main-span trestle, transporting the first main-span beam section to the position under a suspension point of a temporary cantilever hanger through a crawler crane on the first main-span trestle, hoisting a bridge floor crane to the specified position on the first side-span beam section and the middle beam section by utilizing the temporary cantilever hanger, and hoisting and installing the first main-span beam section by adopting the bridge floor crane.
Compared with the prior art, the invention has the following advantages:
1. according to the invention, the temporary cantilever hanger is arranged on the upper cross beam by using the tower crane, the temporary cantilever hanger comprises two Bailey beams which are arranged at the top of the upper cross beam in parallel along the extension direction of the bridge body, two ends of each Bailey beam are respectively provided with the windlass, and the cable-free beam section in the tower area is hoisted by using the combination and matching mode of the temporary cantilever hanger, the temporary cable and the tower crane on the tower body bearing platform, so that a floating crane is not used, an assembling support is not arranged below, the main channel is not occupied, the construction cost is reduced, the construction period is improved, the safety risk is low, and the popularization and the use are convenient.
2. According to the invention, the middle beam section, the side span I beam section and the main span I beam section form the cable-free beam section of the superposed beam cable-stayed bridge tower area, auxiliary equipment such as a bracket and the like is not required to be erected on the lower cross beam, the installation is carried out at one time, unnecessary interference on the cable-free beam section of the superposed beam cable-stayed bridge tower area caused by dismantling the bracket at the bottom of the beam section in the later period is avoided, the reliability and the stability are realized, and the using effect is good.
3. The method has simple steps, the middle beam section is directly supported by the lower cross beam, the first side span beam section is temporarily fixed by the temporary side span cable, and the first main span beam section is temporarily fixed by the temporary main span cable, so the method has the advantages of simple operation, convenient disassembly and convenient popularization and use.
In conclusion, the invention uses the combination and matching mode of the temporary cantilever hanger, the temporary cable and the tower crane on the tower body bearing platform to lift the cable-free beam section in the tower area, does not use a floating crane, does not arrange an assembling bracket, does not occupy a main channel, reduces the construction cost, improves the construction period, has low safety risk and is convenient to popularize and use.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
Fig. 1 is a schematic view of an installation structure of a temporary cantilever crane according to the present invention.
FIG. 2 is a schematic view of an installation structure of the tower crane of the present invention.
Fig. 3 is a schematic structural view of a hoisting intermediate beam section according to the invention.
FIG. 4 is a right side view of FIG. 3 with the tower crane added.
FIG. 5 is a schematic structural view of a first beam section of the hoisting side span of the invention.
FIG. 6 is a schematic connection diagram of the first side span beam section and the temporary side span stay cable.
Fig. 7 is a schematic view of the installation position of the side span anchoring end anchor box of the invention.
FIG. 8 is a schematic view of the installation structure of the bridge deck crane of the present invention.
Fig. 9 is a schematic structural view of the first main span beam segment hoisted by the invention.
FIG. 10 is a schematic connection diagram of a primary span I beam section and a primary span temporary stay cable according to the invention.
FIG. 11 is a block flow diagram of a method of the present invention.
Description of reference numerals:
1-a lower beam; 2-middle beam section; 3, spanning a first beam section on the side;
4, a main span I beam section; 11-a winch; 12-bailey beam;
14-a bailey beam fastener; 15-carrying pole beam; 16-upper beam;
17-tower crane; 18-1-side span trestle; 18-2-main span trestle;
19-a first steel cord; 20-a second wire rope; 21-third wire rope;
22-fourth wire rope; 23-side span temporary cable; 24-side span anchoring end anchor box;
25-side span tensioning end anchor box; 26-a bridge deck crane; 27-main span temporary cable;
28-anchor box of anchor end of main span; 29-main span tension end anchor box.
Detailed Description
As shown in fig. 1 to 11, the construction method of the tower area of the composite beam cable-stayed bridge without the cable beam section comprises the following steps:
step one, installing a temporary cantilever hanger: arranging a side-span trestle 18-1 at the side of the tower body bearing platform close to the side span, arranging a main-span trestle 18-2 at the side of the tower body bearing platform close to the main span, installing a tower crane 17 on the tower body bearing platform, and installing a temporary cantilever hanger on an upper cross beam 16 by using the tower crane 17;
the temporary cantilever hanger comprises two Bailey beams 12 which are arranged at the top of an upper cross beam 16 in parallel along the extending direction of a bridge body, and two ends of each Bailey beam 12 are respectively provided with a winch 11;
step two, mounting the intermediate beam section: the middle beam section 2 is transported to the side-span trestle 18-1, the middle beam section 2 is transported to the position right below the hanging point of the temporary cantilever hanging bracket through a crawler crane on the side-span trestle 18-1, the middle beam section 2 is accurately installed on the lower cross beam 1 through the cooperation of a tower crane 17 after the middle beam section 2 is hoisted to the installation position by a hoist 11;
step three, mounting of a side span I beam section: transporting the first side span beam section 3 to a side span trestle 18-1, transporting the first side span beam section 3 to a position right below a temporary cantilever hanger lifting point through a crawler crane on the side span trestle 18-1, lifting the first side span beam section 3 by using a winch 11, and connecting the first side span beam section 3 with the middle beam section 2 by using a tower crane 17 until the first side span beam section 3 and the middle beam section 2 are installed in place;
step four, temporarily fixing the side span I beam section: hoisting an edge span anchoring end anchor box 24 and an edge span tensioning end anchor box 25 by using a tower crane 17, after hoisting is completed, arranging the edge span tensioning end anchor box 25 on an edge girder of the edge span I beam section 3, arranging the edge span anchoring end anchor box 24 on the top of a tower column close to the edge span side, mounting an edge span temporary cable 23 by using the tower crane again, fixing one end of the edge span temporary cable 23 on the top of the tower column close to the edge span side through the edge span anchoring end anchor box 24, and fixing the other end of the edge span temporary cable 23 on the edge span I beam section 3 through the edge span tensioning end anchor box 25;
tensioning the side span temporary cable 23 after the side span temporary cable 23 is installed;
step five, mounting a main span I beam section: transporting the first main-span beam section 4 to a main-span trestle 18-2, transporting the first main-span beam section 4 to a position right below a temporary cantilever hanger lifting point through a crawler crane on the main-span trestle 18-2, lifting the first main-span beam section 4 by using a winch 11, and connecting the first main-span beam section 4 with the middle beam section 2 by using a tower crane 17 until the first main-span beam section 4 and the middle beam section 2 are installed in place;
step six, temporarily fixing the main span I beam section: hoisting a main span anchoring end anchor box 28 and a main span tensioning end anchor box 29 by using a tower crane 17, after the hoisting is finished, arranging the main span tensioning end anchor box 29 on a side girder of a main span first beam section 4, arranging the main span anchoring end anchor box 28 on the top of a tower column close to the main span side, and installing a main span temporary cable 27 by using the tower crane again, wherein one end of the main span temporary cable 27 is fixed on the top of the tower column close to the main span side through the main span anchoring end anchor box 28, and the other end of the main span temporary cable 27 is fixed on the main span first beam section 4 through the main span tensioning end anchor box 29;
tensioning the main-span temporary cable 27 after the installation of the main-span temporary cable 27 is finished, and completing construction of a cable-free beam section in a tower area of the composite beam cable-stayed bridge;
seventhly, dismantling the temporary cantilever hanger and the temporary cable: after the construction of the cable-free beam section in the tower area of the superposed beam cable-stayed bridge is completed, the temporary cantilever hangers are dismantled one by adopting a tower crane 17, a winch is dismantled firstly, and then the Bailey beam 12 is dismantled;
after entering the permanent cables, the side span temporary cables 23 and the main span temporary cables 27 are dismantled.
In this embodiment, a shoulder pole beam 15 is disposed at the bottom of the upper cross beam 16 and under the bailey beam 12, and the bailey beam 12 and the corresponding shoulder pole beam 15 are fastened by a bailey beam fastener 14.
In this embodiment, the bailey beam fastener 14 comprises a precision-tapped steel fastener.
In this embodiment, the number of the winches 11 is four, and the four winches 11 respectively extend out of four steel wire ropes, which are a first steel wire rope 19, a second steel wire rope 20, a third steel wire rope 21 and a fourth steel wire rope 22.
In this embodiment, in the fifth step, the installation of the first main span beam section can be completed by using the bridge deck crane 26, and the process is as follows: transporting the first main-span beam section 4 to a first main-span trestle 18-2, transporting the first main-span beam section 4 to the position right below a temporary cantilever hanger lifting point through a crawler crane on the first main-span trestle 18-2, lifting a bridge deck crane 26 to the first side-span beam section 3 and the middle beam section 2 at a designated position by using the temporary cantilever hanger, and lifting and mounting the first main-span beam section 4 by using the bridge deck crane 26.
When the temporary cantilever hanging bracket is used, the temporary cantilever hanging bracket is arranged on the upper cross beam 16 by using the tower crane 17, the temporary cantilever hanging bracket comprises two Bailey beams 12 which are arranged at the top of the upper cross beam 16 in parallel along the extension direction of a bridge body, two ends of each Bailey beam 12 are respectively provided with the windlass 11, a tower area cable-free beam section is hoisted by using the mode that the temporary cantilever hanging bracket, a temporary cable and the tower crane 17 on a tower body bearing platform are combined and matched, a floating crane is not used, an assembling bracket is not arranged below, a main channel is not occupied, the construction cost is reduced, the construction period is prolonged, and the safety risk is low; the middle beam section, the side-span I beam section and the main-span I beam section form a superposed beam cable-stayed bridge tower area cable-free beam section, auxiliary equipment such as a bracket and the like is not required to be erected on the lower cross beam, the superposed beam cable-stayed bridge tower area cable-free beam section is installed at one time, unnecessary interference on the superposed beam cable-stayed bridge tower area cable-free beam section caused by later-stage dismantling of the bracket at the bottom of the beam section is avoided, and the superposed beam cable-stayed bridge tower area cable-free beam section is reliable and stable; the intermediate beam section directly utilizes the bottom end rail to support, and the first roof beam section of sidespan utilizes the interim cable 23 of sidespan to fix temporarily, and the first roof beam section of main span utilizes the interim cable 27 of main span to fix temporarily, easy operation, it is convenient to demolish.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (5)
1. A construction method for a cable-free beam section in a tower area of a composite beam cable-stayed bridge is characterized by comprising the following steps:
step one, mounting a temporary cantilever hanger: a side span support trestle (18-1) is arranged on the tower body bearing platform near the side span, a main span support trestle (18-2) is arranged on the tower body bearing platform near the main span, a tower crane (17) is installed on the tower body bearing platform, and a temporary cantilever hanger is installed on an upper cross beam (16) by using the tower crane (17);
the temporary cantilever hanger comprises two Bailey beams (12) which are arranged at the top of an upper cross beam (16) in parallel along the extending direction of a bridge body, and two ends of each Bailey beam (12) are respectively provided with a winch (11);
step two, mounting the intermediate beam section: the method comprises the following steps that (1) an intermediate beam section (2) is conveyed to a side-span trestle (18-1), the intermediate beam section (2) is conveyed to the position right below a temporary cantilever hanger lifting point through a crawler crane on the side-span trestle (18-1), the intermediate beam section (2) is lifted to a mounting position through a winch (11), and then the intermediate beam section (2) is accurately mounted on a lower cross beam (1) through the cooperation of a tower crane (17);
step three, mounting of a side span I beam section: the method comprises the following steps that a first side-span beam section (3) is conveyed to a first side-span trestle (18-1), the first side-span beam section (3) is conveyed to the position right below a temporary cantilever hanger lifting point through a crawler crane on the first side-span trestle (18-1), the first side-span beam section (3) is lifted by a winch (11), and the first side-span beam section (3) is connected with a middle beam section (2) by a tower crane (17) until the first side-span beam section and the middle beam section are installed in place;
step four, temporarily fixing the side span I beam section: hoisting an edge span anchoring end anchor box (24) and an edge span tensioning end anchor box (25) by using a tower crane (17), after hoisting is completed, arranging the edge span tensioning end anchor box (25) on an edge main beam of the edge span I beam section (3), arranging the edge span anchoring end anchor box (24) at the top of a tower column close to the edge span side, mounting an edge span temporary cable (23) by using the tower crane again, fixing one end of the edge span temporary cable (23) at the top of the tower column close to the edge span side through the edge span anchoring end anchor box (24), and fixing the other end of the edge span temporary cable (23) on the edge span I beam section (3) through the edge span tensioning end anchor box (25);
tensioning the side span temporary cable (23) after the side span temporary cable (23) is installed;
step five, mounting a main span I beam section: transporting the first main-span beam section (4) to a main-span trestle (18-2), transporting the first main-span beam section (4) to the position right below a temporary cantilever hanger lifting point through a crawler crane on the main-span trestle (18-2), lifting the first main-span beam section (4) by using a winch (11), and connecting the first main-span beam section (4) with the middle beam section (2) by using a tower crane (17) until the first main-span beam section and the middle beam section are installed in place;
step six, temporarily fixing the first main span beam section: hoisting a main span anchoring end anchor box (28) and a main span tensioning end anchor box (29) by using a tower crane (17), after hoisting is completed, arranging the main span tensioning end anchor box (29) on a side girder of a main span I beam section (4), arranging the main span anchoring end anchor box (28) on the top of a tower column close to the main span side, and installing a main span temporary cable (27) by using the tower crane again, wherein one end of the main span temporary cable (27) is fixed on the top of the tower column close to the main span side through the main span anchoring end anchor box (28), and the other end of the main span temporary cable (27) is fixed on the main span I beam section (4) through the main span tensioning end anchor box (29);
tensioning the main-span temporary cable (27) after the main-span temporary cable (27) is installed, and completing construction of a cable-free beam section in a tower area of the composite beam cable-stayed bridge;
seventhly, dismantling the temporary cantilever hanger and the temporary cable: after the construction of the cable-free beam section of the superposed beam cable-stayed bridge tower area is completed, the temporary cantilever hangers are dismantled one by adopting a tower crane (17), a winch is dismantled firstly, and then the Bailey beam (12) is dismantled;
after entering the permanent cable, the side span temporary cable (23) and the main span temporary cable (27) are dismantled.
2. The construction method of the ropeless beam section in the tower area of the composite beam cable-stayed bridge according to claim 1, characterized in that: a shoulder pole beam (15) is arranged at the bottom of the upper cross beam (16) and is positioned under the Bailey beam (12), and the Bailey beam (12) and the corresponding shoulder pole beam (15) are fastened through a Bailey beam fastener (14).
3. The method for constructing the cable-free beam section in the tower area of the composite beam cable-stayed bridge according to claim 2, characterized in that: the bailey beam fastener (14) comprises a precision threaded steel fastener.
4. The construction method of the ropeless beam section in the tower area of the composite beam cable-stayed bridge according to claim 1, characterized in that: the number of the winches (11) is four, the four winches (11) respectively extend out of four steel wire ropes, and the four steel wire ropes are respectively a first steel wire rope (19), a second steel wire rope (20), a third steel wire rope (21) and a fourth steel wire rope (22).
5. The method for constructing the cable-free beam section in the tower area of the composite beam cable-stayed bridge according to claim 1, characterized in that: in the fifth step, the installation of the first main span beam section can be completed by adopting a bridge deck crane (26), and the process is as follows: the method comprises the steps of conveying a main span first beam section (4) to a main span support trestle (18-2), conveying the main span first beam section (4) to the position under a temporary cantilever hanger lifting point through a crawler crane on the main span support trestle (18-2), lifting a bridge deck crane (26) to the designated positions on a side span first beam section (3) and a middle beam section (2) by using the temporary cantilever hanger, and lifting and mounting the main span first beam section (4) by using the bridge deck crane (26).
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| CN202111147124.9A CN113718625B (en) | 2021-09-29 | 2021-09-29 | Construction method for cable-free beam section of tower area of composite beam cable-stayed bridge |
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| CN202111147124.9A CN113718625B (en) | 2021-09-29 | 2021-09-29 | Construction method for cable-free beam section of tower area of composite beam cable-stayed bridge |
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| JPH0841826A (en) * | 1994-07-29 | 1996-02-13 | Shimizu Corp | Erection method of bridge and equipment thereof and main girder unit |
| JP2003328323A (en) * | 2002-05-15 | 2003-11-19 | Kajima Corp | Construction method of tower structure |
| CN106522101A (en) * | 2016-11-17 | 2017-03-22 | 中交路桥华东工程有限公司 | Construction method of superlong cable beam-free sections of cable-stayed bridge |
| CN106884384A (en) * | 2017-03-01 | 2017-06-23 | 贵州桥梁建设集团有限责任公司 | A kind of mountain area steel-concrete composite beam cable-stayed bridge erection crane method |
| CN112609578A (en) * | 2020-11-24 | 2021-04-06 | 中铁二局集团有限公司 | Method for mounting steel truss girder at top section of bridge pier of cable-stayed bridge |
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| CN113718625A (en) | 2021-11-30 |
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