CN109914223B - Hoisting system suitable for suspension bridge steel structure bridge deck system and operation method thereof - Google Patents
Hoisting system suitable for suspension bridge steel structure bridge deck system and operation method thereof Download PDFInfo
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- CN109914223B CN109914223B CN201910343084.1A CN201910343084A CN109914223B CN 109914223 B CN109914223 B CN 109914223B CN 201910343084 A CN201910343084 A CN 201910343084A CN 109914223 B CN109914223 B CN 109914223B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 164
- 239000010959 steel Substances 0.000 title claims abstract description 164
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000000725 suspension Substances 0.000 title claims abstract description 12
- 238000009434 installation Methods 0.000 claims abstract description 13
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 5
- 238000004873 anchoring Methods 0.000 claims description 4
- 238000004080 punching Methods 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 abstract description 5
- 238000010276 construction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The invention discloses a hoisting system suitable for a steel structure bridge deck system of a suspension bridge and an operation method thereof; the hoisting system is characterized by comprising a cable hoisting system, a bridge deck system and a bridge deck system hoisting tool; the implementation method comprises the following steps: (1) cable hoist system placement; (2) bridge deck system assembly site arrangement; (3) processing a bridge deck system lifting appliance; (4) bridge deck system segment assembly; (5) bridge deck system segment lifting; (6) bridge deck system segment installation. Compared with the traditional steel structure bridge deck system hoisting system, the hoisting system has the advantages that: 1. and two bridge deck system sections are hoisted at one time, so that the work efficiency is high. 2. The system for hoisting the steel structure bridge system is more scientific, the hoisting process is more stable, the butt joint with the installed segments is more efficient, and the installation and positioning are more accurate.
Description
Technical Field
The invention relates to the field of construction of steel structure bridge deck systems, in particular to a hoisting system suitable for a suspension bridge steel structure bridge deck system and an operation method thereof.
Background
At present, the domestic steel structure bridge system mostly adopts scattered assembly or single-section hoisting, because the steel structure bridge tie bar is many and complicated, scattered assembly and single-section hoisting procedures are many, the efficiency is low, and the single-section hoisting is extremely unstable in single-pivot supporting system when in place, the butt joint is difficult, and the installation accuracy is low. The system can hoist two bridge deck system sections at one time, has high work efficiency, is more scientific in a system for hoisting the steel structure bridge system, is more stable in hoisting process, is more efficient in butt joint with the installed sections, and is more stable and accurate in installation and positioning.
Disclosure of Invention
The invention aims to provide a hoisting system suitable for a steel structure bridge deck system of a suspension bridge and a hoisting system thereof. The system has high work efficiency, stable operation and accurate positioning.
The invention is realized in such a way, and provides a hoisting system suitable for a steel structure bridge deck system of a suspension bridge, which is characterized by comprising a cable hoisting system, a bridge deck system and a bridge deck system lifting appliance;
the cable hoisting system mainly comprises a bearing cable, a crown block, a traction pulley block, a traction winch, a hoisting winch and an anchoring system; the traction winch is positioned on the approach bridge, and all the parts are connected by a bearing rope;
the bridge deck system comprises an approach bridge, a grid beam, a bearing pier cross beam, a longitudinal beam bearing pier and a bearing pier longitudinal beam connecting piece, and is supported by a steel pipe column fixed on the side span approach bridge, all parts are mutually connected to form a whole so as to ensure stability, I-steel is transversely welded at the top opening of the column to bear the whole steel structure bridge deck system, and a limiting block is transversely welded on the I-steel, so that a steel structure bridge deck system rod piece can be conveniently and rapidly positioned;
the bridge deck system lifting appliance mainly comprises a longitudinal beam, a steel sling, a steel structure bridge deck system lifting appliance and a connecting block, wherein the connecting block is made of steel plates, and the longitudinal beam is made of profile steel;
the connecting block is connected with a pulley block of the cable hoisting system, and is connected with a longitudinal beam through a steel sling, and the longitudinal beam is connected with a steel structure bridge deck system lifting appliance, so that balance is ensured, and a counterweight is arranged on the side of the longitudinal beam in a straddling way.
A hoisting operation method suitable for a bridge deck system of a suspension bridge steel structure is characterized in that; the method is implemented as follows;
step one: cable hoist system arrangement:
the cable hoisting system is reformed by a steel truss girder hoisting system, namely, the steel structure bridge deck system can be hoisted after the hoisting tool is replaced;
step two: bridge deck assembly site arrangement:
in order to facilitate the assembly of the bridge deck system with the steel structure, an assembly pedestal is arranged at the end of the bridge approach at the side of the side span; the pedestal is supported by steel pipe columns fixed on the side span approach bridge and connected with each other through channel steel parallel connection, so that the whole is formed to ensure stability, the height of the steel pipe columns is required to ensure that the lower part can conveniently work when the steel structure bridge deck system is assembled manually, I-steel is transversely welded at the top opening of the column to bear the steel structure bridge deck system, and a limiting block is transversely welded on the I-steel, so that the steel structure bridge deck system rod piece can be conveniently and quickly positioned;
step three: bridge deck system sling processing:
and processing a special lifting appliance applicable to a steel structure bridge deck system. The lifting appliance mainly comprises a longitudinal beam, a steel sling, a steel structure bridge deck system lifting appliance and a connecting block, and is composed of steel plates and section steel; the connecting block is connected with a lower hanger of a hoisting pulley group of the cable hoisting system, and then connected with a longitudinal beam through a steel sling, the longitudinal beam is connected with a steel structure bridge deck system lifting appliance, and in order to ensure balance, a counterweight is arranged at the side of the longitudinal beam;
step four: bridge deck system segment assembly:
assembling the steel structure bridge deck system according to the drawing, wherein the steel structure bridge deck system rod pieces are only hinged firstly in the assembling process; the steel structure bridge deck system sections are firstly hoisted and placed by a crane, the transverse position is rapidly positioned by transverse limit on a pedestal, the longitudinal position is adjusted, then two section longitudinal beams are connected by punching nails through connecting plates of the longitudinal sections and reserved holes, each longitudinal beam is connected by a cross beam after the longitudinal beam is connected, and when the steel structure bridge deck system sections are assembled, the steel structure bridge deck system sections are convenient for fine adjustment in later-stage positioning, and the rod pieces are firstly bolted by bolts instead of welding;
step five: and (3) hoisting bridge deck system segments:
connecting a steel rope of a winch on a side bridge approach to a lifting appliance, taking up the rope by the winch and the coordination of a cable hoisting traction and lifting system, paying off the rope by the cable hoisting and lifting system, pulling the cable hoisting lifting appliance to a spliced position of a side steel structure bridge deck system, installing the lifting appliance, moving the steel structure bridge deck system to a middle span side by the coordination of the winch and the cable hoisting traction and lifting system, taking up the rope by the cable hoisting and lifting system, and then releasing the connection of the winch and the lifting appliance, and hoisting the steel structure bridge deck system to a position to be installed by the cable hoisting and lifting traction system.
Step six: bridge deck system segment installation:
when the steel structure bridge deck system reaches the installation position, the steel structure bridge deck system is positioned by cable hoisting, walking and hoisting, fine adjustment is performed on the steel structure bridge deck system by using a chain pulley, and after the steel structure bridge deck system is in a position, the steel structure bridge deck system is connected with a support and hinged with the steel structure bridge deck system installed in the previous section.
The invention has the advantages that: the invention discloses a hoisting system suitable for a bridge deck system of a suspension bridge steel structure; the hoisting system is characterized by comprising a cable hoisting system, a bridge deck system and a bridge deck system hoisting tool; the implementation method comprises the following steps: (1) cable hoist system placement; (2) bridge deck system assembly site arrangement; (3) processing a bridge deck system lifting appliance; (4) bridge deck system segment assembly; (5) bridge deck system segment lifting; (6) bridge deck system segment installation. Compared with the traditional steel structure bridge deck system hoisting system, the hoisting system has the advantages that: 1) And two bridge deck system sections are hoisted at one time, so that the work efficiency is high. 2) The system for hoisting the steel structure bridge system is more scientific, the hoisting process is more stable, the butt joint with the installed segments is more efficient, and the installation and positioning are more accurate. .
Drawings
FIG. 1 is a schematic diagram of the assembly of the steel bridge deck system of the present patent;
FIG. 2 is a schematic view of a deck hanger of the steel structure of the present patent;
FIGS. 3-6 are schematic views of the hoisting steps of the steel structure bridge deck system of the present patent;
FIG. 7 is a schematic diagram of a cable hoist system 1/2 of the present patent;
fig. 8 is a schematic diagram of the installation of the bridge deck system of the steel structure of the present patent.
Wherein: the bridge deck system comprises a bearing rope 1, a crown block 2, a traction pulley block 3, a traction winch 4, an approach bridge 5, a grid beam 6, a bearing pier cross beam 7, a longitudinal beam bearing pier 8, a bearing pier longitudinal beam connecting piece 9, an approach bridge 10, a steel pipe upright post 11, a longitudinal beam 12, a steel sling 13, a steel structure bridge deck system lifting appliance 14, a connecting block 15, a counterweight 16, a steel wire rope 17, a cable lifting system 100 and a bridge deck system lifting appliance 200.
Detailed Description
The following detailed description of the present invention will provide clear and complete description of the technical solutions of the embodiments of the present invention with reference to fig. 1-8, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a hoisting system suitable for a steel structure bridge deck system of a suspension bridge; the system has high work efficiency, stable operation and accurate positioning. The hoisting system comprises a cable hoisting system 100, a bridge deck system and a bridge deck system hoisting tool 200;
the cable hoisting system mainly comprises a bearing cable 1, a crown block 2, a traction pulley block 3, a traction winch 4, a hoisting winch and an anchoring system; the traction winch 4 is positioned on the approach bridge 5, and all parts are connected by a bearing rope;
the bridge deck system comprises an approach bridge 5, a grid beam 6, a bearing pier cross beam 7, a longitudinal beam bearing pier 8 and a bearing pier longitudinal beam connecting piece 9, and is supported by a steel pipe column 11 fixed on a side span approach bridge 10, all the parts are mutually connected to form a whole so as to ensure stability, I-steel is transversely welded at the top opening of the column 11 to bear the whole steel structure bridge deck system, and a limiting block is transversely welded on the I-steel, so that a steel structure bridge deck system rod piece can be conveniently and rapidly positioned;
the bridge deck system lifting appliance mainly comprises a longitudinal beam 12, a steel hanging strip 13, a steel structure bridge deck system lifting appliance 14 and a connecting block 15, wherein the connecting block 15 is made of steel plates, and the longitudinal beam 12 is made of profile steel;
the connecting block 15 is connected with a pulley block of a cable hoisting system, and then is connected with the longitudinal beam 12 through the steel hanging strip 13, the longitudinal beam 12 is connected with a steel structure bridge deck system lifting appliance 14, and a counterweight 16 is arranged on the side span side of the longitudinal beam for ensuring balance.
The hoisting operation method suitable for the bridge deck system of the suspension bridge steel structure is implemented as follows;
step one: cable hoist system arrangement:
and arranging a cable hoisting system, wherein the cable hoisting system is reformed by the steel truss girder hoisting system, namely, the steel structure bridge deck system can be hoisted after the lifting appliance is replaced. As described above, the cable hoisting system mainly comprises a load-bearing cable, an anchoring system, a crown block, a hoisting pulley block, a traction pulley block, a hoisting winch, a traction winch and the like.
Step two: bridge deck assembly site arrangement:
in order to facilitate the assembly of the bridge deck system with the steel structure, an assembly pedestal is arranged at the end of the bridge approach at the side of the side span. The pedestal is supported by being fixed in the steel pipe stand on the bridge approach of side span, connects each other through the channel-section steel parallel connection, forms wholly in order to guarantee stability, and steel pipe stand highly need guarantee the manual work in the lower part can convenient work when steel construction bridge deck system is assembled, and the transverse welding I-steel of stand top mouth bears steel construction bridge deck system, transverse welding stopper on the I-steel makes things convenient for steel construction bridge deck system member can fix a position fast.
Step three: bridge deck system sling processing:
and processing a special lifting appliance applicable to a steel structure bridge deck system.
The lifting appliance mainly comprises a longitudinal beam, a steel sling, a steel structure bridge deck system lifting appliance and a connecting block, and is composed of steel plates and section steel.
The connecting block is connected with a lower hanger of a hoisting pulley group of the cable hoisting system, and is connected with a longitudinal beam through a steel sling, and the longitudinal beam is connected with a steel structure bridge deck system section through a 'back' sling, so that balance is ensured, and a counterweight is arranged on the side of the longitudinal beam in a straddling way.
Step four: bridge deck system segment assembly:
and assembling the steel structure bridge deck system according to the drawing, wherein the steel structure bridge deck system rod pieces are only hinged in the assembling process.
The steel structure bridge deck system sections are firstly hoisted and placed by a crane, the transverse position is rapidly positioned by transverse limit on a pedestal, the longitudinal position is adjusted, then two section longitudinal beams are connected by punching nails through connecting plates of the longitudinal sections and reserved holes, each longitudinal beam is connected by a cross beam after the longitudinal beam is connected, and when the steel structure bridge deck system sections are assembled, the steel structure bridge deck system sections are convenient for fine adjustment in later-stage positioning, and the rod pieces are only bolted by bolts instead of welding.
Step five: and (3) hoisting bridge deck system segments:
connecting a steel rope of a winch on a side bridge approach to a lifting appliance, taking up the rope by the winch and the coordination of a cable hoisting traction and lifting system, paying off the rope by the cable hoisting and lifting system, pulling the cable hoisting lifting appliance to a spliced position of a side steel structure bridge deck system, installing the lifting appliance, moving the steel structure bridge deck system to a middle span side by the coordination of the winch and the cable hoisting traction and lifting system, taking up the rope by the cable hoisting and lifting system, and then releasing the connection of the winch and the lifting appliance, and hoisting the steel structure bridge deck system to a position to be installed by the cable hoisting and lifting traction system.
Step six: bridge deck system segment installation:
when the steel structure bridge deck system reaches the installation position, the steel structure bridge deck system is positioned by cable hoisting, walking and hoisting, fine adjustment is performed on the steel structure bridge deck system by using a chain pulley, and after the steel structure bridge deck system is in a position, the steel structure bridge deck system is connected with a support and hinged with the steel structure bridge deck system installed in the previous section.
Because the lifting appliance is provided with two rows of lifting points on the steel structure bridge deck system, the bridge deck system sections are very stable in the whole lifting and positioning process, and the steel structure bridge deck system is lifted simultaneously after being integrally assembled by adopting the two sections, and the sections of the steel structure bridge deck system are provided with two rows of supporting points to form a simply supported cantilever beam system, so that the system is stable after the bridge deck system falls into place, and the fine adjustment and positioning efficiency is high.
The above is indicated in fig. 1, 2, 3, 4 and 5.
The invention has the advantages that: compared with the traditional process, the invention has the advantages that:
1) And two bridge deck system sections are hoisted at one time, so that the work efficiency is high.
2) The system for hoisting the steel structure bridge system is more scientific, the hoisting process is more stable, the butt joint with the installed segments is more efficient, and the installation and positioning are more stable and accurate.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (1)
1. A hoisting operation method suitable for a bridge deck system of a suspension bridge steel structure is characterized in that; the method is implemented as follows;
the hoisting system comprises a cable hoisting system, a bridge deck system and a bridge deck system lifting appliance, wherein the cable hoisting system is suitable for a steel structure bridge deck system of a suspension bridge;
the cable hoisting system mainly comprises a bearing cable (1), a crown block (2), a traction pulley block (3), a traction winch (4), a hoisting winch and an anchoring system; the traction winch (4) is positioned on the approach bridge (5), and all the parts are connected by a bearing rope;
the bridge deck system comprises an approach bridge (5), a lattice beam (6), a bearing pier cross beam (7), a longitudinal beam bearing pier (8) and a bearing pier longitudinal beam connecting piece (9), and is supported by a steel pipe column (11) fixed on a side span approach bridge (10), all parts are mutually connected to form a whole so as to ensure stability, I-steel is transversely welded at the top opening of the column (11) to bear the whole steel structure bridge deck system, and a limiting block is transversely welded on the I-steel, so that a steel structure bridge deck system rod piece can be conveniently and rapidly positioned;
the bridge deck system lifting appliance mainly comprises a longitudinal beam (12), a steel hanging strip (13), a steel structure bridge deck system lifting appliance (14) and a connecting block (15), wherein the connecting block (15) is made of steel plates, and the longitudinal beam (12) is made of profile steel;
the connecting block (15) is connected with a pulley block of the cable hoisting system, and then is connected with the longitudinal beam (12) through the steel hanging strip (13), and the longitudinal beam (12) is connected with the steel structure bridge deck system lifting appliance (14);
to ensure balance, a side weight (16) is straddled on the side of the longitudinal beam;
step one: a cable hoisting system is arranged; the cable hoisting system is reformed by a steel truss girder hoisting system, namely, the steel structure bridge deck system can be hoisted after the hoisting tool is replaced;
step two: the bridge deck system is assembled in the field; in order to facilitate the assembly of the bridge deck system with the steel structure, an assembly pedestal is arranged at the end of the bridge approach at the side of the side span; the pedestal is supported by steel pipe columns fixed on the side span approach bridge and connected with each other through channel steel parallel connection, so that the whole is formed to ensure stability, the height of the steel pipe columns is required to ensure that the lower part can conveniently work when the steel structure bridge deck system is assembled manually, I-steel is transversely welded at the top opening of the column to bear the steel structure bridge deck system, and a limiting block is transversely welded on the I-steel, so that the steel structure bridge deck system rod piece can be conveniently and quickly positioned;
step three: processing a bridge deck system lifting appliance; the special lifting appliance for processing the steel structure bridge deck system mainly comprises a longitudinal beam, a steel sling, a steel structure bridge deck system lifting appliance and a connecting block, and is composed of steel plates and profile steel; the connecting block is connected with a lower hanger of a hoisting pulley group of the cable hoisting system, and then connected with a longitudinal beam through a steel sling, the longitudinal beam is connected with a steel structure bridge deck system lifting appliance, and in order to ensure balance, a counterweight is arranged at the side of the longitudinal beam;
step four: assembling bridge deck system sections; assembling the steel structure bridge deck system according to the drawing, wherein the steel structure bridge deck system rod pieces are only hinged firstly in the assembling process; the steel structure bridge deck system sections are firstly hoisted and placed by a crane, the transverse position is rapidly positioned by transverse limit on a pedestal, the longitudinal position is adjusted, then two section longitudinal beams are connected by punching nails through connecting plates of the longitudinal sections and reserved holes, each longitudinal beam is connected by a cross beam after the longitudinal beam is connected, and when the steel structure bridge deck system sections are assembled, the steel structure bridge deck system sections are convenient for fine adjustment in later-stage positioning, and the rod pieces are firstly bolted by bolts instead of welding;
step five: lifting bridge deck system sections; connecting a steel rope of a winch on a side span approach bridge to a lifting appliance, taking up the rope by the winch and a cable hoisting traction and lifting system, paying off the rope by the cable hoisting and lifting system, pulling the cable hoisting lifting appliance to a position where a bridge deck system of a side span side steel structure is assembled, installing the lifting appliance, then moving the bridge deck system of the steel structure to a middle span side by the winch and the cable hoisting traction and lifting system, taking up the rope by the cable hoisting and lifting system, and then releasing the connection between the winch and the lifting appliance, and hoisting the bridge deck system of the steel structure to a position to be installed by the cable hoisting and lifting traction system;
step six: installing bridge deck system sections; when the steel structure bridge deck system reaches the installation position, the steel structure bridge deck system is positioned by cable hoisting, walking and hoisting, fine adjustment is performed on the steel structure bridge deck system by using a chain pulley, and after the steel structure bridge deck system is in a position, the steel structure bridge deck system is connected with a support and hinged with the steel structure bridge deck system installed in the previous section.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910343084.1A CN109914223B (en) | 2019-04-26 | 2019-04-26 | Hoisting system suitable for suspension bridge steel structure bridge deck system and operation method thereof |
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| CN201910343084.1A CN109914223B (en) | 2019-04-26 | 2019-04-26 | Hoisting system suitable for suspension bridge steel structure bridge deck system and operation method thereof |
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| CN109914223B true CN109914223B (en) | 2024-01-23 |
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| CN121228621B (en) * | 2025-11-27 | 2026-02-24 | 贵州省公路工程集团有限公司 | A blind zone swaying and hoisting structure and construction method for a steel truss suspension bridge |
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