CN118257207A - Bridge construction method for transit shed - Google Patents
Bridge construction method for transit shed Download PDFInfo
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- CN118257207A CN118257207A CN202410495271.2A CN202410495271A CN118257207A CN 118257207 A CN118257207 A CN 118257207A CN 202410495271 A CN202410495271 A CN 202410495271A CN 118257207 A CN118257207 A CN 118257207A
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- 238000010276 construction Methods 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000009434 installation Methods 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 147
- 239000010959 steel Substances 0.000 claims description 147
- 239000004567 concrete Substances 0.000 claims description 9
- 239000000725 suspension Substances 0.000 claims description 4
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- 238000004904 shortening Methods 0.000 abstract 1
- 230000032258 transport Effects 0.000 description 11
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- 239000011435 rock Substances 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 210000001364 upper extremity Anatomy 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000005484 gravity Effects 0.000 description 1
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Abstract
The application provides a bridge construction method for transit shed bridges, and relates to the technical field of bridge construction. The method comprises installing a first row of support piers on shore, and then installing deck system segments connecting the shore and the first row of support piers; installing a bridge girder erection machine by utilizing the first row of support piers; carrying and installing supporting pier components for building the next trestle segment by using a bridge girder erection machine, wherein the supporting pier of the next trestle segment is consistent with the first row of supporting pier structures; after the bridge girder erection machine moves forward to the built supporting pier component, carrying and installing the bridge deck system segment of the next trestle segment; and (5) repeating the installation of the trestle segments until the transit shed bridge frame is arranged on the opposite bank. The embodiment of the application can utilize the advantages of the bridge girder erection machine to carry out transportation and assembly processes of trestle members, and reduce the occupation of water areas, thereby avoiding the influence of the water area environment on trestle construction, effectively shortening the construction period, reducing the construction cost and improving the safety of trestle construction.
Description
Technical Field
The application relates to the technical field of bridge construction, in particular to a bridge construction method for transit shed.
Background
In the construction process of the underwater bridge, a steel trestle is often erected as a construction channel, the steel trestle generally adopts steel pipe piles as a lower supporting structure, and a steel-concrete combined bridge deck system is erected on the steel pipe piles for passing. The steel trestle is usually constructed by adopting a piling ship method.
However, these methods are prone to difficult problems to overcome when constructing shallow water. For example, when shallow water is constructed, the water level of the shallow water is low, and the ship is easy to be stranded to influence the advance of a piling ship, so that the construction safety is even reduced. The shallow water area of the sea area is easily affected by tide fluctuation, the approach needs to be organized reasonably in advance, the effective operation time of the piling ship is limited, and the construction period is prolonged. Therefore, the traditional construction method of the piling ship is easily affected by the water area environment, the construction period is prolonged, the construction cost is increased, and the construction safety is reduced.
Disclosure of Invention
The embodiment of the application provides a method for setting a transit shed bridge, which can solve the problems that the construction of the existing trestle is easily influenced by the water area environment, the construction period is long, the construction cost is high and the construction safety is reduced. In order to achieve the object, embodiments of the present application provide the following solutions.
According to an aspect of the embodiment of the present application, there is provided a bridge configuration method of transit shed, including the steps of:
1) After installing a first row of support piers on shore, installing deck system segments connecting the shore and the first row of support piers;
2) Installing a bridge girder erection machine by utilizing the first row of support piers;
3) Carrying and installing a supporting pier component for building a next trestle segment by using the bridge girder erection machine, wherein the supporting pier of the next trestle segment is consistent with the first-row supporting pier structure;
4) After the bridge girder erection machine moves forward to the built supporting pier component, carrying and installing the bridge deck system section of the next trestle section;
5) Repeating the steps 3) and 4) until the transit shed bridge is arranged on the opposite side.
In one possible implementation manner, the first row of support piers comprises at least two first steel pipe piles arranged in the transverse bridge direction, and a parallel connection and a diagonal brace connected between the first steel pipe piles; the first row of support piers are installed by using an onshore crane.
In one possible implementation, the deck system section of the installation connecting the shoreside and the first row of support piers comprises:
hoisting a spandrel girder by using an onshore crane and erecting the spandrel girder transverse bridge to a preset placement position on the top end of the first steel pipe pile and the dyke;
determining that the spandrel girder erection is completed, hoisting the bridge deck system section by using the shore crane, horizontally placing two ends of the bridge deck system section on the adjacent spandrel girder, wherein the bridge deck system section is a prefabricated member and comprises a steel base plate and a concrete panel, and the concrete panel is paved at the top of the steel base plate.
In one possible implementation, the bridge girder erection machine includes a bearing system, and the installing the bridge girder erection machine using the first row of support piers includes:
Driving the bearing system to move towards a direction approaching the first row of support piers until the front support leg of the bearing system moves to the first row of support piers;
Lowering the front support leg to fix the front support leg to the front ends of the spandrel girder and deck system section of the first row of support piers;
and fixing the rear supporting leg of the bearing system on the shore.
In one possible implementation manner, the bridge girder erection machine further includes a traveling crane carried by the girder of the bearing system, a lifting system, and the driving the bearing system to move toward a direction approaching the first row of support piers includes:
Moving the traveling crane and the lifting system to the rear end of the main beam;
And lifting the front supporting leg, and driving the bearing system to move towards the direction close to the first-row supporting piers by utilizing an advancing system on the rear supporting leg in the bearing system so as to fix the front supporting leg at the front ends of the spandrel girder and the bridge deck system section of the first-row supporting piers.
In one possible implementation manner, the bridge girder erection machine further includes a traveling crane carried by the girder of the bearing system, a lifting system, and the driving the bearing system to move toward a direction approaching the first row of support piers includes:
Moving the traveling crane and the lifting system to the rear end of the main beam;
And lifting the front supporting leg, and driving the bearing system to move towards the direction close to the first-row supporting piers by utilizing an advancing system on the rear supporting leg in the bearing system so as to fix the front supporting leg at the front ends of the spandrel girder and the bridge deck system section of the first-row supporting piers.
In one possible implementation manner, the hoisting the second steel pipe pile by using the hoisting system includes:
connecting a lifting rope of the lifting system with the second steel pipe pile, and lifting the second steel pipe pile by using the lifting rope;
And rotating a boom of the lifting system to transport the second steel pipe pile to the front end of the main beam.
In one possible implementation, the driving the second steel pipe pile into position includes:
Installing a guide device at the front end part of the main beam, wherein the limit space of the guide device corresponds to the inserting and driving position of the second steel pipe pile;
Rotating the second steel pipe pile by using the hoisting system so that the end part of one end of the second steel pipe is opposite to the limit space;
lowering the second steel pipe pile along the direction penetrating through the limiting space by utilizing the lifting system;
And inserting and driving the second steel pipe pile to a preset depth under water so as to fix the second steel pipe pile.
In one possible implementation, installing the remaining support pier member includes:
dismantling the guide device, and transporting the parallel connection and diagonal bracing by using the travelling crane;
lifting the parallel connection and diagonal bracing to the upper part of the main girder by utilizing the lifting system;
rotating a suspension arm of the lifting system, and moving the parallel connection and diagonal bracing to the position above the second steel pipe pile;
The hoisting system is used for lowering the parallel connection and the diagonal bracing, and the second steel pipe pile is used for fixing the parallel connection and the diagonal bracing;
and lifting the spandrel girder to the top end of the second steel pipe pile by using the travelling crane and the lifting system, and installing the spandrel girder.
In one possible implementation, installing the remaining support pier member includes:
dismantling the guide device, and transporting the parallel connection and diagonal bracing by using the travelling crane;
lifting the parallel connection and diagonal bracing to the upper part of the main girder by utilizing the lifting system;
rotating a suspension arm of the lifting system, and moving the parallel connection and diagonal bracing to the position above the second steel pipe pile;
The hoisting system is used for lowering the parallel connection and the diagonal bracing, and the second steel pipe pile is used for fixing the parallel connection and the diagonal bracing;
and lifting the spandrel girder to the top end of the second steel pipe pile by using the travelling crane and the lifting system, and installing the spandrel girder.
The technical scheme provided by the embodiment of the application has the beneficial effects that:
The application provides a bridge construction method of transit shed, in particular to a bridge construction method of transit shed:
1. After the first-row support piers are installed on the shore, bridge deck system sections for connecting the shore and the first-row support piers are installed, the construction of the first trestle section can be completed in a shore construction mode, the influence of a shallow water area on the construction is effectively avoided, and the construction efficiency and the construction safety are improved;
2. Installing a bridge girder erection machine by utilizing a first row of support piers; carrying and installing a supporting pier component for building the next trestle segment by using a bridge girder erection machine; after the bridge girder erection machine moves forward to the built supporting pier component, carrying and installing the bridge deck system segment of the next trestle segment; and (5) repeating the installation of the trestle segments until the transit shed bridge frame is arranged on the opposite bank. The advantage of bridge crane can be utilized, the transportation and the assembly process of the trestle member are simplified, the occupation of a water area is reduced, the influence of the water area environment on the construction of the trestle is avoided, the construction period is effectively shortened, the construction cost is reduced, and the safety of the construction of the trestle is improved.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present application, the following description will simply refer to the drawings that are required to be used in the description of the embodiments of the present application.
FIG. 1 is a flowchart of a method for setting up a bridge of transit shed according to an embodiment of the present application;
fig. 2 is a schematic diagram of the installation of the first row of support piers in the method for installing the transit shed bridge frame according to the embodiment of the application;
FIG. 3 is a schematic view of a first deck system segment installation in a method of bridge construction of transit shed according to an embodiment of the present application;
FIG. 4 is a block diagram of a bridge girder erection machine in a bridge girder erection method of transit shed according to an embodiment of the present application;
Fig. 5 is a schematic diagram of a travelling crane lifting a second steel pipe pile in the method for setting a transit shed bridge according to an embodiment of the present application;
fig. 6 is a schematic diagram of a hoisting system hoisting a second steel pipe pile in the method for setting a transit shed bridge according to an embodiment of the present application;
fig. 7 is a schematic diagram of a position of a guiding device in the method for setting up a bridge of transit shed according to an embodiment of the present application;
fig. 8 is a schematic diagram illustrating a second steel pipe pile in the method for setting a bridge of transit shed according to an embodiment of the present application;
FIG. 9 is a schematic diagram illustrating the installation of a parallel connection and a diagonal brace in the method for installing a transit shed bridge in accordance with an embodiment of the present application;
FIG. 10 is a schematic diagram of a transporting spandrel girder in the method for installing a transit shed bridge according to an embodiment of the present application;
FIG. 11 is a schematic diagram illustrating the installation of a spandrel girder in the method for installing a transit shed bridge according to an embodiment of the present application;
FIG. 12 is a schematic diagram of a bridge girder erection machine via hole in the method for installing a transit shed bridge girder according to an embodiment of the present application;
Fig. 13 is a schematic view illustrating installation of a next deck segment in the bridge construction method of transit shed according to an embodiment of the present application.
Description of the reference numerals: 1. a crane; 2. on shore; 3. a first steel pipe pile; 4. a bridge abutment; 5. bridge deck segments; 6. a spandrel girder; 7. a hoisting system; 8. a traveling crane; 9. a load bearing system; 10. a second steel pipe pile; 91. a main beam; 11. and a guide device.
Detailed Description
Embodiments of the present application are described below with reference to the drawings in the present application. It should be understood that the embodiments described below with reference to the drawings are exemplary descriptions for explaining the technical solutions of the embodiments of the present application, and the technical solutions of the embodiments of the present application are not limited.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and "comprising," when used in this specification, specify the presence of stated features, information, data, steps, operations, elements, and/or components, but do not preclude the presence or addition of other features, information, data, steps, operations, elements, components, and/or groups thereof, that may be included in the present specification. The term "and/or" as used herein indicates at least one of the items defined by the term, e.g. "a and/or B" indicates implementation as "a", or as "a and B".
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings.
The technical solutions of the embodiments of the present invention and technical effects produced by the technical solutions of the present invention are described below by describing several exemplary embodiments. It should be noted that the following embodiments may be referred to, or combined with each other, and the description will not be repeated for the same terms, similar features, similar implementation steps, and the like in different embodiments.
The application provides a method for setting a transit shed bridge, which aims to solve the problems that trestle construction is easily influenced by water area environment, construction period is long, construction cost is high and construction safety is reduced in the prior art.
Optionally, the communication-keeping trestle can be a bridge of transit shed of a large-span reinforced concrete combined bridge deck system. The application can realize the rapid assembly line integrated construction of the bridge-protecting trestle of the large-span steel-concrete combined bridge deck system, utilizes the advantages of the bridge girder erection machine to realize the transportation and assembly processes of trestle members, reduces the occupation of water areas, improves the construction work efficiency and quickens the construction progress.
The embodiment of the application provides a bridge construction method of a bridge construction transit shed, as shown in fig. 1-13, the bridge construction method of the bridge construction transit shed comprises the following steps:
S101: after the first row of support piers is installed on shore 2, deck system segments 5 are installed that connect the shore 2 and the first row of support piers.
Optionally, the first row of support piers comprises at least two first steel pipe piles 3 arranged in the transverse bridge direction, and parallel joints and diagonal braces connected between the first steel pipe piles 3; the first row of support piers is installed with a crane 1 on shore 2.
Optionally, the setting up position of the bridge transit shed on shore 2 is determined before the first steel-pipe pile 3 is installed. And constructing an abutment 4 of the keep-through trestle at the erection position, wherein the abutment 4 is L-shaped and can be formed by adopting a concrete pouring mode. Wherein, in order to improve the construction speed, the bridge abutment 4 construction at two ends of the transit shed bridge can be simultaneously carried out.
Alternatively, the crane 1 may be a crawler crane, and after the completion of the construction of the abutment 4 is determined, one end of the first steel pipe pile 3 for mounting the spandrel girder 6 is connected to the crawler crane to transport and insert the first steel pipe pile 3 therethrough.
Alternatively, the first steel pipe piles 3 in the first row of support piers may be one or more rows, and when the first steel pipe piles 3 are installed by the crane 1, the first steel pipe piles 3 are driven row by row in the direction of the shore into the water.
Alternatively, the first steel pipe pile 3 is transported to above the jack-in position by means of the crane 1, and after lowering the first steel pipe pile 3 into the water, the first steel pipe pile 3 may be jack-in to the underwater rock formation by means of a vibrating pile hammer. The depth of the first steel pipe pile 3 inserted into the underwater rock stratum can be determined according to the construction requirement of the trestle.
Optionally, in the pile hammer construction shakes, transport first steel-pipe pile 3 to inserting and driving the position, transfer first steel-pipe pile 3, first steel-pipe pile 3 relies on self gravity to insert in the aquatic, its upper portion or the roll can use the hawser to fix, treat that the pile body has certain stability (if under the condition of no external force, do not rock) and satisfies the straightness requirement that hangs down, transport the pile hammer that shakes again to the top of first steel-pipe pile 3, drive first steel-pipe pile 3 to clip the top of steel-pipe pile, utilize the vibration of pile hammer that shakes to insert first steel-pipe pile 3 into the stratum under water.
Optionally, one end of the bridge deck system section 5 corresponding to the first row of support piers is erected on the shore 2, wherein when the bridge deck section corresponding to the first row of support piers is constructed, the construction of other similar bridge deck sections can be synchronously performed so as to improve the construction speed, and one end of the bridge deck system section 5 of the similar bridge deck section is erected on the shore 2.
Alternatively, the longitudinal and transverse bridge distances between the inserted first steel pipe piles 3 correspond to the longitudinal and transverse lengths of the deck system segments 5, respectively.
In one embodiment, a bridge abutment 4 forming a keep-through bridge is constructed on the shore 2, the side of the bridge abutment 4 carrying the keep-through bridge being located on the side of the bridge abutment 4 facing away from the shore 2. After abutment 4 construction is accomplished, adopt the crawler crane to transport first steel-pipe pile 3 to the surface of water top, confirm this first steel-pipe pile 3 and be located and insert the position back, utilize the first steel-pipe pile 3 of pile hammer that shakes to insert and beat to the predetermined degree of depth of stratum under water to, insert the straightness that hangs down of in-process real-time detection first steel-pipe pile 3, adjust first steel-pipe pile 3 according to the testing result, in order to ensure that insert first steel-pipe pile 3 after beating satisfies the straightness requirement that hangs down.
Optionally, installing deck system segments 5 connecting the shore 2 and the first row of support piers, comprising: lifting the spandrel girder 6 by using the crane 1 on the shore 2 and transversely erecting the spandrel girder 6 to the top end of the first steel pipe pile 3 and the preset placement position on the shore 2; and determining that the spandrel girder 6 is erected, lifting the bridge deck system section 5 by using the shore 2 crane 1, and horizontally placing the two ends of the bridge deck system section 5 on the adjacent spandrel girder 6, wherein the bridge deck system section 5 is a prefabricated member, and comprises a steel base plate and a concrete panel, and the concrete panel is paved on the top of the steel base plate. After the deck system segments 5 are in place, it is also necessary to join adjacent deck system segments 5 by cast-in-place seams so that the deck system segments 5 are joined as a unit.
Alternatively, the predetermined placement position may be in an L-shaped opening of the bridge deck 4, in which opening the spandrel girder 6 corresponding to one end of the deck system segment 5 is laid flat by the shore 2 crane 1. Wherein the spandrel girder 6 at the predetermined placement position is parallel to the spandrel girder 6 at the top end of the first steel pipe pile 3.
In one embodiment, the shore 2 crane 1 may be a crawler crane for hoisting the first steel pipe pile 3, after the first steel pipe pile 3 is determined to be inserted and driven, the crawler crane is used to connect with the middle part or a plurality of positions of the bridge deck system section 5 so as to stably hoist the bridge deck system section 5, the bridge deck system section 5 is transported between the first row of support piers and the bridge abutment 4, the bridge deck system section 5 is lowered by using the crawler crane, and the aerial posture and the position of the bridge deck system section 5 are adjusted in the lowering process, so that two ends of the bridge deck system section 5 can be horizontally placed at preset positions on the adjacent spandrel girders 6.
S102: and installing the bridge girder erection machine by utilizing the first row of support piers.
Optionally, the bridge girder erection machine comprises a bearing system 9, and the bridge girder erection machine is installed by using the first row of support piers, and comprises: driving the bearing system 9 to move towards the direction approaching the first row of support piers until the front support leg of the bearing system 9 moves to the first row of support piers; lowering the front support leg, and fixing the front support leg to the front ends of the spandrel girder 6 and the bridge deck system section 5 of the first row of support piers; the rear leg of the load bearing system 9 is fixed on shore 2.
Optionally, the bridge girder erection machine further includes a traveling crane 8 carried by a main girder 91 of the bearing system 9, a lifting system 7, and drives the bearing system 9 to move in a direction approaching the first row of support piers, including: the traveling crane 8 and the lifting system 7 are moved to the rear end of the main beam 91; the front support leg is lifted, and the forward moving system on the rear support leg in the bearing system 9 is used for driving the bearing system 9 to move towards the direction approaching the first row of support piers.
Alternatively, the load bearing system 9 may comprise at least one pair of section bars, which are parallel to each other and arranged in the forward direction. Wherein the profile steel may be of a honeycomb beam structure in order to reduce the weight of the load bearing system 9.
Alternatively, the advancing system may be hydraulically driven, diesel driven, electrically driven, etc. to move the load bearing system 9. The bearing system 9 may further comprise a middle supporting leg, wherein the middle supporting leg is arranged between the front supporting leg and the rear supporting leg, and one end of the middle supporting leg is connected with the section steel. The advancing system can also be arranged on the middle leg, with which the bearing system 9 is driven to move.
In one embodiment, the load bearing system 9 may be driven in motion by a beam truck and an advance system. Specifically, move the middle part of back landing leg to shaped steel, the fortune roof beam car moves to bearing system 9 lower part, is connected with shaped steel, packs up preceding landing leg and back landing leg, and at this moment, shaped steel is by back landing leg and fortune roof beam flatcar bearing, possesses along the longitudinal bridge direction condition of moving. The power of the forward moving system and the girder transporting vehicle on the middle supporting leg is utilized to move the bearing system 9 along the longitudinal bridge direction.
Optionally, hydraulic driving mechanisms are arranged on the front supporting leg and the rear supporting leg, and the front supporting leg and the rear supporting leg are lowered and lifted through the hydraulic driving mechanisms. Wherein, after the front landing leg moves to the upper side of the first row of support piers, the hydraulic driving mechanism on the front landing leg is driven to descend, so that the bottom of the front landing leg is abutted against the spandrel girder 6 at the top of the first row of support piers and the front end of the bridge deck system section 5, thereby fixing the front landing leg.
Optionally, if the transit shed bridge also has a trestle segment to be constructed. After the fixing of the front support leg is completed, the fixing of the rear support leg on the shore 2 is canceled, the main beam 91 and the rear support leg are driven by the forward moving system on the rear support leg to move along the forward bridge for a preset distance, and after the moving is completed, the rear support leg is fixed. And carrying and constructing the support pier component of the next trestle segment by the moved bridge girder erection machine. The length of the preset distance corresponds to the distance between the support pier at the front end of the next trestle segment (the end of the next trestle segment far away from the first-row support pier) and the first-row support pier.
S103: and carrying and installing a supporting pier component for constructing the next trestle segment by using the bridge girder erection machine, wherein the supporting pier of the next trestle segment is consistent with the first row of supporting piers in structure.
Optionally, carrying and installing a support pier member for constructing a next trestle segment using a bridge girder erection machine, comprising: transporting the second steel pipe pile 10 in the support pier component to the lower part of the traveling crane 8, and hoisting the second steel pipe pile 10 to a hoisting position by using the traveling crane 8; moving the lifting system 7 to a lifting position, and lifting the second steel pipe pile 10 by using the lifting system 7; the second steel pipe pile 10 is lifted and the second steel pipe pile 10 is driven into place by means of the lifting system 7 for installing the remaining support pier members.
Alternatively, the main beam 91 may be moved forward to secure the rear legs of the load bearing system 9 before the support pier member is handled. After the fixing of the rear legs is completed, the traveling crane 8 and the hoisting system 7 are moved along the main beam 91 to the front end of the main beam 91 so as to transport the support end members.
In one embodiment, the hoisting position is located within the working radius of the hoisting system 7, and the hoisting position may be determined according to the inserting position of the second steel pipe pile 10 and the working radius, so that the hoisting position and the inserting position are both located within the working radius, so as to reduce the moving distance of the hoisting system 7.
Alternatively, the traveling crane 8 is slidably fixed to the main beam 91 and may be disposed between the front leg and the rear leg, and the two traveling crane 8 may be separated and kept at a predetermined interval when the second steel pipe pile 10 is transported, so that the distance between the hoisting structures of the two traveling crane 8 is smaller than the length of the second steel pipe pile 10.
Alternatively, the second steel pipe pile 10 may be transported by a flatbed. The traveling crane 8 can move to an area corresponding to the lifting position of the lifting system 7 before the second steel pipe pile 10 is transported below the main beam 91, and the second steel pipe pile 10 is transported to the area by the flat car, so that the lifting of the second steel pipe pile 10 is realized.
Optionally, lifting the second steel pipe pile 10 with the lifting system 7, including: connecting a lifting rope of the lifting system 7 with the second steel pipe pile 10, and lifting the second steel pipe pile 10 by using the lifting rope; the boom of the hoisting system 7 is rotated to transport the second steel pipe pile 10 to the front end of the main beam 91.
In one embodiment, the main beam 91 comprises at least two parallel steel sections, a lifting channel of the second steel pipe pile 10 is arranged between the steel sections, the travelling crane 8 is arranged between the steel sections and is in sliding connection with the steel sections, after the travelling crane 8 is used for transporting the second steel pipe pile 10 to the working radius of the lifting system 7, a lifting rope of the lifting system 7 is put down, and the lifting rope is connected with at least two areas of the second steel pipe pile 10. The connection position of the hoist rope and the second steel pipe pile 10 needs to be determined according to the length and structure of the second steel pipe pile 10 to ensure that the second steel pipe pile 10 can be lifted horizontally through the hoist trunk. If the traveling crane 8 and the second steel pipe pile 10 are in a binding or limiting state that affects the lifting of the second steel pipe pile 10, the binding or limiting state needs to be released before the second steel pipe pile 10 is lifted. When the second steel pipe pile 10 is transported by the hoisting system 7, the traveling crane 8 is retracted to the starting point (e.g., the rear end of the main beam 91) so as to quickly perform the next transport work. The hoisting system 7 transports the second steel pipe pile 10 to the region where the second steel pipe pile 10 is to be driven by rotating the boom, to perform the driving operation of the second steel pipe pile 10.
Optionally, the second steel pipe pile 10 is driven into place, including: installing a guide device 11 on the front end part of the main beam 91, wherein the limit space of the guide device 11 corresponds to the inserting and driving position of the second steel pipe pile 10; rotating the second steel pipe pile 10 by using the hoisting system 7 so that the end part of one end of the second steel pipe is opposite to the limit space; lowering a second steel pipe pile 10 along the direction penetrating through the limiting space by using a lifting system 7; the second steel pipe pile 10 is inserted and driven to a preset depth underwater to fix the second steel pipe pile 10.
Alternatively, the guide device 11 may be a guide frame for steel pipe pile construction, which includes a longitudinal beam and a guide frame arranged in parallel, and one end of the longitudinal beam is fixed to an end of the main beam 91. The guide frame is arranged between the longitudinal beams, the width of the inner cavity in the guide frame is larger than the diameter of the second steel pipe pile 10, and a limit space is formed through the cavity. The guide frame can be movably fixed on the longitudinal beam so as to be convenient to adjust according to the inserting position of the second steel pipe pile 10.
Alternatively, the hoisting system 7 may comprise two booms, both of which are connected to the second steel pipe pile 10, and the second steel pipe pile 10 is adjusted from a horizontal state to a vertical state by adjusting the connection positions of the hoisting ropes of the two booms and the second steel pipe pile 10, so that the second steel pipe pile 10 is lowered into water along the limited space.
Alternatively, the second steel pipe pile 10 and the second steel pipe pile 10 may be installed to the underwater rock formation in the same manner as the driving. The first steel pipe pile 3 and the second steel pipe pile 10 are installed using a pile vibrating hammer.
Optionally, the number of the second steel pipe piles 10 is at least two, and before each second steel pipe pile 10 is inserted, the position of the guiding device 11 is correspondingly adjusted according to the insertion position of the second steel pipe pile 10, so that the limit space of the guiding device 11 exactly corresponds to the insertion position.
Optionally, installing the remaining support pier member comprises: dismantling the guide device 11, and transporting the parallel connection and the diagonal bracing by using the travelling crane 8; lifting the parallel connection and diagonal bracing to the upper part of the main beam 91 by using a lifting system 7; rotating the suspension arm of the lifting system 7, and moving the parallel connection and the diagonal bracing to the position above the second steel pipe pile 10; the hoisting system 7 is used for lowering the parallel connection and the diagonal bracing, and the second steel pipe pile 10 is used for fixing the parallel connection and the diagonal bracing; and lifting the spandrel girder 6 to the top end of the second steel pipe pile 10 by using the travelling crane 8 and the lifting system 7, and installing the spandrel girder 6. The hoisting and mounting modes of the spandrel girder 6 are the same as those of the parallel connection and the diagonal bracing, and the spandrel girder 6 is transported by using the travelling crane 8 firstly and then mounted by using the hoisting system 7 after being hoisted.
Alternatively, the spandrel girder 6 is installed transversely to the top end of the second steel pipe pile 10. The two ends of the spandrel girder 6 are placed on different ones of the second steel pipe piles 10.
In one embodiment, after the installation of the second steel pipe pile 10 is completed, the guide device 11 is removed, the parallel and diagonal braces are transported to the working area of the traveling crane 8 in sequence, and the traveling crane 8 transports the parallel and diagonal braces to the working radius of the hoisting system 7. And the hoisting system 7 is used for hoisting the parallel connection and the diagonal brace which are transported to the working radius to the upper part of the second steel pipe pile 10, lowering the parallel connection and the diagonal brace to the top of the second steel pipe pile 10 according to the structure of the supporting pier, and installing the parallel connection and the diagonal brace. Wherein, the parallel connection and the diagonal bracing can be fixed on the top of the second steel pipe pile 10 in a welding mode.
S104: after the bridge girder erection machine is moved forward to the constructed supporting pier member, the deck system section 5 of the next deck section is carried and installed.
Alternatively, after the spandrel girder 6 is installed on the top end of the second steel pipe pile 10, the bridge girder erection machine is advanced so that the front leg of the bridge girder erection machine is moved to the front end of the spandrel girder 6 on the top of the second steel pipe pile 10 to obtain a space for installing the deck system section 5.
Optionally, when the bridge girder erection machine is moved forwards, the front support legs are released from being fixed, the travelling crane 8 is moved to the rear end of the main girder 91, and the main girder 91 is driven to move along the bridge by the power of the support legs and the rear support legs in the bridge girder erection machine. After the front support leg moves above the second steel pipe pile 10, the front support leg is lowered, fixed on the spandrel girder 6 at the top of the second steel pipe pile 10, and the middle support leg and the rear support leg are fixed.
Optionally, the deck system section 5 of the next bridge section is handled and installed, comprising: lifting the deck system section 5 of the next trestle section by using a travelling overhead travelling crane 8, and transporting the deck system section 5 to a preset lowering position along the main beam 91, wherein the preset lowering position corresponds to the installation position of the deck system section 5 of the next trestle section; the deck system segments 5 are lowered onto the spandrel girder 6 by means of travelling overhead travelling crane 8, the deck system segments 5 are mounted, and both ends of the deck system segments 5 are placed on adjacent spandrel girders 6.
Alternatively, adjacent sides of adjacent deck system segments 5 may be fixedly connected by means of a welded connection after placing both ends of the deck system segments 5 on adjacent spandrel girders 6.
S105: and S103 and S104 are repeated until the transit shed bridge frame is arranged on the opposite bank.
Alternatively, after the installation of deck system segments 5 is completed, if the transit shed bridge still has an unworn deck system segment 5, the above steps are continued to be repeated to transport and install the support pier member associated with the next deck system segment 5 as well as deck system segment 5.
Alternatively, each section of the trestle can be constructed by adopting two sides respectively until the two sections are closed in water, and the bridge is arranged by adopting a transit shed bridge, or the sections of the trestle can be erected from a single side, and the erection of the full-bridge trestle can be completed in a mode of gradually constructing the trestle to the opposite sides.
The bridge construction method of the transit shed bridge is suitable for construction of a large-span reinforced concrete combined bridge deck system transit shed bridge, a traveling crown block 8 and a lifting system 7 are arranged on a bearing system 9 of a bridge girder erection machine, and the traveling crown block 8 and the lifting system 7 are matched to realize the combination of feeding, lifting and lowering of a supporting pier component and a bridge deck system segment 5, so that the construction of a trestle is converted into running water operation on a fixed platform, and the construction of a ventilation-maintaining steel trestle is realized in a rapid integrated manner.
The terms "first," "second," "third," "fourth," "1," "2," and the like in the description and in the claims and in the above figures, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate, such that the embodiments of the application described herein may be implemented in other sequences than those illustrated or otherwise described.
The foregoing is merely an optional implementation manner of some of the implementation scenarios of the present application, and it should be noted that, for those skilled in the art, other similar implementation manners based on the technical ideas of the present application are adopted without departing from the technical ideas of the scheme of the present application, and the implementation manner is also within the protection scope of the embodiments of the present application.
Claims (10)
1. The bridge construction method of the transit shed is characterized by comprising the following steps of:
1) After installing a first row of support piers on shore, installing deck system segments connecting the shore and the first row of support piers;
2) Installing a bridge girder erection machine by utilizing the first row of support piers;
3) Carrying and installing a supporting pier component for building a next trestle segment by using the bridge girder erection machine, wherein the supporting pier of the next trestle segment is consistent with the first-row supporting pier structure;
4) After the bridge girder erection machine moves forward to the built supporting pier component, carrying and installing the bridge deck system section of the next trestle section;
5) Repeating the steps 3) and 4) until the transit shed bridge is arranged on the opposite side.
2. The method of claim 1, wherein the first row of support piers comprises at least two first steel pipe piles arranged in a transverse direction, and a parallel connection and a diagonal brace connected between the first steel pipe piles; the first row of support piers are installed by using an onshore crane.
3. The method of claim 1, wherein the installing connects deck segments of the shoreside and the first row of support piers, comprising:
hoisting a spandrel girder by using an onshore crane and erecting the spandrel girder transverse bridge to a preset placement position on the top end of the first steel pipe pile and the dyke;
determining that the spandrel girder erection is completed, hoisting the bridge deck system section by using the shore crane, horizontally placing two ends of the bridge deck system section on the adjacent spandrel girder, wherein the bridge deck system section is a prefabricated member and comprises a steel base plate and a concrete panel, and the concrete panel is paved at the top of the steel base plate.
4. The method of claim 1, wherein the bridge girder erection machine comprises a load-bearing system, and wherein the installing the bridge girder erection machine by using the first row of support piers comprises:
Driving the bearing system to move towards a direction approaching the first row of support piers until the front support leg of the bearing system moves to the first row of support piers;
Lowering the front support leg to fix the front support leg to the front ends of the spandrel girder and deck system section of the first row of support piers;
and fixing the rear supporting leg of the bearing system on the shore.
5. The method of claim 4, wherein the bridge girder erection machine further comprises a traveling crane carried by a main girder of the bearing system and a lifting system, and wherein driving the bearing system to move in a direction approaching the first row of support piers comprises:
Moving the traveling crane and the lifting system to the rear end of the main beam;
And lifting the front supporting leg, and driving the bearing system to move towards the direction close to the first-row supporting piers by utilizing an advancing system on the rear supporting leg in the bearing system so as to fix the front supporting leg at the front ends of the spandrel girder and the bridge deck system section of the first-row supporting piers.
6. The method of claim 5, wherein said handling and installing support pier members for constructing a next bridge segment using said bridge girder erection machine comprises:
transporting the second steel pipe pile in the supporting pier component to the lower part of the traveling crane, and lifting the second steel pipe pile to a lifting position by using the traveling crane;
Moving the lifting system to the lifting position, and lifting the second steel pipe pile by using the lifting system;
And lifting the second steel pipe pile by using the lifting system and inserting the second steel pipe pile in place so as to be used for installing the rest supporting pier components.
7. The method of claim 6, wherein lifting the second steel pipe pile using the lifting system comprises:
connecting a lifting rope of the lifting system with the second steel pipe pile, and lifting the second steel pipe pile by using the lifting rope;
And rotating a boom of the lifting system to transport the second steel pipe pile to the front end of the main beam.
8. The method of claim 6, wherein the driving the second steel pipe pile into position comprises:
Installing a guide device at the front end part of the main beam, wherein the limit space of the guide device corresponds to the inserting and driving position of the second steel pipe pile;
Rotating the second steel pipe pile by using the hoisting system so that the end part of one end of the second steel pipe is opposite to the limit space;
lowering the second steel pipe pile along the direction penetrating through the limiting space by utilizing the lifting system;
And inserting and driving the second steel pipe pile to a preset depth under water so as to fix the second steel pipe pile.
9. The method of claim 8, wherein installing the remaining support pier members comprises:
dismantling the guide device, and transporting the parallel connection and diagonal bracing by using the travelling crane;
lifting the parallel connection and diagonal bracing to the upper part of the main girder by utilizing the lifting system;
rotating a suspension arm of the lifting system, and moving the parallel connection and diagonal bracing to the position above the second steel pipe pile;
The hoisting system is used for lowering the parallel connection and the diagonal bracing, and the second steel pipe pile is used for fixing the parallel connection and the diagonal bracing;
and lifting the spandrel girder to the top end of the second steel pipe pile by using the travelling crane and the lifting system, and installing the spandrel girder.
10. The method of claim 8, wherein said handling and installing deck system segments of said next bridge segment comprises:
Lifting the bridge deck system section of the next trestle section by using the travelling crane, and transporting the bridge deck system section to a preset lowering position along the main beam, wherein the preset lowering position corresponds to the installation position of the bridge deck system section of the next trestle section;
And lowering the bridge deck system section onto the spandrel girder by using the travelling crane, installing the bridge deck system section, and arranging two ends of the bridge deck system section on the adjacent spandrel girder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410495271.2A CN118257207A (en) | 2024-04-23 | 2024-04-23 | Bridge construction method for transit shed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410495271.2A CN118257207A (en) | 2024-04-23 | 2024-04-23 | Bridge construction method for transit shed |
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| Publication Number | Publication Date |
|---|---|
| CN118257207A true CN118257207A (en) | 2024-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202410495271.2A Pending CN118257207A (en) | 2024-04-23 | 2024-04-23 | Bridge construction method for transit shed |
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| Country | Link |
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| CN (1) | CN118257207A (en) |
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- 2024-04-23 CN CN202410495271.2A patent/CN118257207A/en active Pending
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