Bridge deck slab installation construction technology based on road and bridge engineering

Abstract

The invention discloses a bridge deck slab installation construction process based on road and bridge engineering. The bridge deck slab installation construction process comprises the following steps that a bridge erecting machine and a double-crown-block framework are configured; the bridge girder erection machine and the double-crown-block framework are controlled to walk to the to-be-erected position of the bridge deck slab in the longitudinal direction of the bridge; continuously configuring steel beam webs and supporting leg adjusting supporting frameworks corresponding to the left and right parts of the abutment respectively, and hoisting the bridge deck to the inner side steel beam webs configured on the left and right parts according to a bridge girder erection machine and a double-crown-block framework; continuing to hoist the bridge deck slab between the inner and outer side steel beam webs and the outer side steel beam web according to the bridge girder erection machine and the double-crown-block framework, wherein the inner and outer side steel beam webs are arranged in a left-right mode, and the bridge deck slab is limited and supported by the supporting leg adjusting supporting framework; and the supporting legs are controlled to adjust the supporting framework to return, and the whole supporting framework is pushed to the next erecting station. The technical problems that in the prior art, hoisting sequence planning for bridge deck slab construction is disordered, uneven abutment stress is easily caused, the bridge deck slab splicing seam treatment time sequence is poor, the seam filling quality is unstable, and potential safety hazards exist are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of road and bridge construction technology, and in particular to a bridge deck installation construction technology based on road and bridge engineering. Background Art

[0002] At present, in the field of road and bridge construction, the bridge deck installation process is crucial, as it affects the subsequent long-term quality and performance of the bridge. However, it is currently plagued by the shortcomings of traditional technology.

[0003] In the prior art, during the hoisting and erection stage, due to the lack of reasonable hoisting sequence planning, the construction site is relatively chaotic, and random hoisting causes uneven force on the piers, resulting in greater overall safety hazards and increased manpower and material monitoring and reinforcement costs; and during the bridge deck splicing stage, especially the poor timing selection of splicing seam processing, the quality of the filling material is unstable in the subsequent construction process. When encountering external force pressure or environmental changes such as hoisting and placing the bridge deck, it is easy to crack or even fall off, affecting construction efficiency and seriously damaging the subsequent durability of the bridge. Summary of the invention

[0004] To this end, the present invention provides a bridge deck installation construction process based on road and bridge engineering to solve the technical problems in the prior art that the lifting sequence planning for bridge deck construction is chaotic, which easily leads to uneven force on piers, and the timing of bridge deck joint processing is poor, resulting in unstable filling quality and safety hazards.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A bridge deck installation construction process based on a road and bridge project includes the following steps:

[0007] Equipped with a bridge erecting machine and double overhead crane structure;

[0008] Control the bridge erection machine and the double overhead crane structure to move along the longitudinal direction of the bridge to the position where the bridge deck is to be erected;

[0009] Continue to configure steel beam webs and outrigger adjustment support structures corresponding to the left and right sides of the pier, and hoist the bridge deck to the inner steel beam webs configured on the left and right sides according to the bridge erection machine and double overhead crane structure;

[0010] Continue to hoist the bridge deck between the inner and outer steel beam webs and the outer steel beam webs configured on the left and right sides according to the bridge erection machine and double overhead crane structure, and use the outrigger adjustment support structure to provide limited support for the bridge deck;

[0011] Control the legs to adjust the support structure back to its original position and move it as a whole to the next erection station.

[0012] On the basis of the above technical solution, the present invention is further described as follows:

[0013] As a further embodiment of the present invention,

[0014] The configuration of the bridge erecting machine and the double overhead crane structure specifically includes:

[0015] Use a truck crane to lift the parts of the bridge erection machine to the cast-in-place beam bridge deck, and then continue to support it above the cast-in-place beam bridge deck to assemble the bridge erection machine. Set the first and second cars on the upper part of the bridge erection machine corresponding to the left and right sections respectively. The distance between the first car and the right end of the bridge erection machine is set to 4.56m, and the distance between the second car and the left end of the bridge erection machine is set to 14.39m.

[0016] As a further embodiment of the present invention,

[0017] The steel beam webs and the leg adjustment support structures are respectively configured corresponding to the left and right sides of the pier, and the bridge deck is hoisted to the inner steel beam webs configured on the left and right sides according to the bridge erection machine and the double overhead crane structure, specifically including:

[0018] On the first day, the vehicle lifted the bridge deck E1 at the lifting position on the right sidewalk, and on the second day, the vehicle remained in the same position;

[0019] At the top of the outer edge of the web of the outer steel beam of the left and right spans, steel sections and steel plates are laid as rear outrigger adjustment supports, and at the top of the inner edge of the web of the outer steel beam of the left and right spans, steel sections and steel plates are laid as middle outrigger track supports; the distance between the rear outrigger adjustment support and the middle outrigger track support in the left and right spans is set to 4.25m, and the distance between the two groups of middle outrigger track supports is set to 21.69m; the distance between the first rear outrigger adjustment support and the first trolley is set to 5.20m;

[0020] at this time:

[0021] Mstable = (4.25 + 21.69 + 4,25) * P after + (21.69 + 4.25) * P middle ② + P middle ① * 4.25 = 515.95t,m;

[0022] M tilt = 5.2*(P middle + G car + G plate) = 192.92t, m;

[0023] Safety factor = 515.95 / 192.92 = 2.67, which is greater than 1.5 and meets the requirements;

[0024] The stabilizing moment of the main beam and the stabilizing moment of the other overhead crane are not considered at this time, so normal use has a safety factor that meets the standard.

[0025] As a further embodiment of the present invention,

[0026] The steel beam webs and leg adjustment support structures are respectively configured corresponding to the left and right sides of the pier, and the bridge deck is hoisted to the inner steel beam webs configured on the left and right sides according to the bridge erection machine and the double overhead crane structure, which specifically also includes:

[0027] On the first day, the car hoisted the bridge deck E1 and then moved horizontally for 17.04m to the top of the inner edge of the web of the right inner steel beam. On the second day, the car remained in the same position.

[0028] On the first day, the vehicle was moved horizontally to the lifting position on the right access road to lift the bridge deck E2, and on the second day, the vehicle remained in the same position;

[0029] On the first day, the crane hoisted bridge deck E2 and continued to move horizontally 16.79m to bridge deck E1. On the second day, the crane remained in the same position.

[0030] The first day vehicle returned to the lifting position on the right sidewalk. After the first day vehicle was in place, the second day vehicle moved 12.2m laterally to bridge deck E1 to lift bridge deck E2;

[0031] On the second day, the car hoisted the bridge deck E2 and moved it horizontally 6.72m to the top of the inner edge of the web of the left inner steel beam symmetrical to the bridge deck E1. The position of the first day car remained unchanged.

[0032] As a further embodiment of the present invention,

[0033] The bridge deck is hoisted between the inner and outer steel beam webs and the outer steel beam webs configured on the left and right sides according to the bridge erection machine and the double overhead crane structure, and the bridge deck is supported by the support structure with supporting legs to limit the position, which specifically includes:

[0034] On the second day, the vehicle is moved to a fixed position without lifting, and the first middle leg is continuously moved horizontally to adjust the support to the inner edge of the inner steel beam web corresponding to the bridge deck E1, and the second middle leg is moved horizontally to adjust the support to the inner edge of the inner steel beam web corresponding to the bridge deck E2;

[0035] Continue to use the first car to lift the bridge panel F1 on the right side of the access road, and the second car remains in place;

[0036] On the first day, the crane hoisted the bridge deck F1 and moved it horizontally 11.54m to the side of the bridge deck E1. The bridge deck F1 was located at the top of the outer edge of the web of the inner steel beam on the right span and the top of the inner edge of the web of the outer steel beam. The position of the crane remained unchanged on the second day.

[0037] As a further embodiment of the present invention,

[0038] The bridge deck is hoisted between the inner and outer steel beam webs and the outer steel beam webs configured on the left and right sides according to the bridge erection machine and the double overhead crane structure, and the bridge deck is supported by the support structure with supporting legs to limit the position, which specifically includes:

[0039] On the first day, the vehicle moves horizontally to the right sidewalk hanging board position to lift the bridge deck D1, and on the second day, the vehicle remains in the same position;

[0040] At this time: the distance between the first middle leg adjustment support and the first rear leg adjustment support is 12.69m, the distance between the first middle leg adjustment support and the second middle leg adjustment support is 4.81m, and the distance between the first trolley and the first rear leg adjustment support is 5.2m;

[0041] Mstable=(12.69+4.81+12.69)*Pafter+(4.81+12.69)*Pzhong②+Pzhong①*12,69=515.95t,m;

[0042] M tilt = 5.2*(P middle + G car + G plate) = 192.92t,m;

[0043] Safety factor = 515.95 / 192.92 = 2.67, which is greater than 1.5 and meets the requirements;

[0044] At this time, the stabilizing moment of the main beam and the stabilizing moment of the other overhead crane are not considered, so the safety factor meets the standard in normal use;

[0045] On the first day, the crane hoisted the bridge deck D1 and moved it horizontally 6.05m to the top of the outer edge of the web of the outer steel beam on the right span. On the second day, the crane remained in the same position.

[0046] As a further embodiment of the present invention,

[0047] The bridge deck is hoisted between the inner and outer steel beam webs and the outer steel beam webs configured on the left and right sides according to the bridge erection machine and the double overhead crane structure, and the bridge deck is supported by the support structure with supporting legs to limit the position, which specifically includes:

[0048] Use steel bars to connect bridge deck E1, bridge deck F1 and bridge deck D1 along the transverse wet joints of the bridge by 1 / 3, so that bridge deck E1, bridge deck F1 and bridge deck D1 are integrated.

[0049] As a further embodiment of the present invention,

[0050] The bridge deck is hoisted between the inner and outer steel beam webs and the outer steel beam webs configured on the left and right sides according to the bridge erection machine and the double overhead crane structure, and the bridge deck is supported by the support structure with supporting legs to limit the position, which specifically includes:

[0051] The first car moves to the lifting position of the right sidewalk, and then moves the first middle leg to adjust the support to the top position of the inner edge of the web of the right outer steel beam. After the first middle leg is adjusted to the right position, the first car lifts the bridge deck D2, and the second car remains in the same position;

[0052] At this time: the distance between the second middle outrigger adjustment support and the second rear outrigger adjustment support is 12.69m, the distance between the first middle outrigger adjustment support and the second middle outrigger adjustment support is 13.25m, the distance between the first middle outrigger adjustment support and the first rear outrigger adjustment support is 4.25m, and the distance between the first trolley and the first rear outrigger adjustment support is 5.2m;

[0053] Mstable = (12.69 + 13.25 + 4.25) * P after + (13.25 + 4.25) P middle ② + P middle ① * 4.25 = 515.95t, m;

[0054] M tilt = 5.2*(P middle + G car + G plate) = 192.92t,m;

[0055] Safety factor = 515.95 / 192.92 = 2.67, which is greater than 1.5 and meets the requirements;

[0056] At this time, the stabilizing moment of the main beam and the stabilizing moment of the other overhead crane are not considered, so the safety factor meets the standard in normal use;

[0057] The first day car was used to lift the bridge deck D2 and moved it 16.1m horizontally to the upper part of the bridge deck E1. The second day car remained in the same position.

[0058] The first day vehicle moves to the lifting position on the right sidewalk, and the second day vehicle moves to the bridge deck E1 position. After the first day vehicle is in place and does not move, the second day vehicle lifts the bridge deck D2.

[0059] On the second day, the car hoisted the bridge deck D2 and moved it horizontally 18.44m to the top of the outer edge of the web of the left outer steel beam. The position of the car on the first day remained unchanged.

[0060] As a further embodiment of the present invention,

[0061] The bridge deck is hoisted between the inner and outer steel beam webs and the outer steel beam webs configured on the left and right sides according to the bridge erection machine and the double overhead crane structure, and the bridge deck is supported by the support structure with supporting legs to limit the position, which specifically includes:

[0062] The second day's vehicle moves horizontally to the position where the deck is not suspended. After the second day's vehicle moves horizontally to the position, the first day's vehicle lifts the bridge deck F2 at the right sidewalk position;

[0063] On the first day, the crane hoisted the bridge deck F2 and moved it horizontally 17.89m to the upper part of the bridge deck E1. On the second day, the crane remained in the same position.

[0064] The first day vehicle moves to the lifting position on the right sidewalk, and the second day vehicle moves to the bridge deck E1 position. After the first day vehicle is in place and does not move, the second day vehicle lifts the bridge deck F2.

[0065] On the second day, the crane hoisted the bridge deck F2 and moved it horizontally 11.16m to the top of the outer edge of the web of the inner steel beam on the left span and the top of the inner edge of the web of the outer steel beam. The position of the crane on the first day remained unchanged.

[0066] As a further embodiment of the present invention,

[0067] The control leg adjusts the support frame back to its original position and moves the whole structure to the next erection station, specifically including:

[0068] Move the second middle support leg horizontally to adjust the support to the initial position;

[0069] The bridge erection machine moves longitudinally along the bridge to the position of the next bridge deck, and continues to erect the bridge deck according to steps S3 and S4, and repeats the process until the erection of the bridge deck is completed.

[0070] The present invention has the following beneficial effects:

[0071] 1. Improved structural stability and safety;

[0072] Through rigorous planning of the position layout of the overhead crane on the bridge erection machine, such as the distance between the first overhead crane and the right end of the bridge erection machine is set to 4.56m, the distance between the second overhead crane and the left end of the bridge erection machine is set to 14.39m, and the precise setting of the distance between each leg adjustment support and the overhead crane, steel beam web and other components, such as the distance between the rear leg adjustment support and the middle leg track support in the left and right sections is set to 4.25m, and the distance between the two sets of middle leg track supports is set to 21.69m, etc., to ensure that the bridge erection machine is balanced in force during operation. When hoisting different bridge panels, based on detailed mechanical calculations, the stability moment (Mstable) and overturning moment (Mtilt) are repeatedly verified, and reliable results with safety factors greater than 1.5 are obtained, which fully guarantees the structural stability of the bridge erection machine itself, effectively avoids the problem of uneven force on the piers caused by random hoisting, greatly reduces safety hazards, and reduces additional manpower and material resources for structural monitoring and reinforcement.

[0073] 2. Construction efficiency is significantly improved;

[0074] Through the scientific and orderly hoisting process, from S301 to S412, the lifting, lateral movement and placement sequence of the first and second cars are clearly defined. The two cars work closely together to systematically complete the precise placement of the bridge deck from the sidewalk lifting position to the designated positions of the left and right steel beam webs. Compared with the traditional hoisting method that lacks reasonable planning, it avoids chaos and disorder on the construction site, reduces time waste caused by hoisting errors and repeated adjustments, speeds up the installation of the bridge deck, and enables the construction process to be efficiently promoted;

[0075] At the same time, the connection of working procedures is reasonably arranged. For example, after the initial positioning of some bridge decks is completed, the reinforcement connection operation of the transverse wet joints is carried out in time (such as step S405 to connect 1 / 3 of the bridge decks E1, F1, and D1 along the transverse wet joints with reinforcement to form an integrated bridge deck). This not only enhances the integrity of the installed bridge decks, but also provides a stable foundation for the subsequent lifting of the bridge decks, further optimizes the construction process, and effectively improves the overall operation efficiency.

[0076] 3. Optimize the quality of bridge deck splicing;

[0077] By accurately grasping the timing of processing the bridge deck joints, and choosing to carry out subsequent operations after the bridge deck is initially in place and partially connected to form an integral whole, the problems caused by processing the joints too early or too late in traditional processes are avoided. At this time, the bridge deck is relatively stable and is less disturbed by external forces, allowing the filling material to be constructed under a relatively ideal environment, effectively ensuring the stability of the filling material quality, reducing the risk of cracking and falling off of the filling material due to external pressure or environmental changes, and significantly improving the quality of bridge deck splicing, thereby ensuring the durability of subsequent bridges and enhancing the functional application, practicality and scalability of the overall process. BRIEF DESCRIPTION OF THE DRAWINGS

[0078] In order to more clearly illustrate the implementation mode of the present invention or the technical solution in the prior art, the drawings required for the implementation mode or the description of the prior art will be briefly introduced below. The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0079] Figures 1 to 23 A schematic structural diagram of the application status of the bridge deck installation construction process based on the road and bridge engineering provided in an embodiment of the present invention according to its specific construction sequence. DETAILED DESCRIPTION

[0080] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0081] The terms such as "upper", "lower", "left", "right", and "middle" used in this specification are only for the convenience of description and are not intended to limit the scope of the invention. Changes or adjustments to their relative relationships should be regarded as within the scope of the invention without substantially changing the technical content.

[0082] like Figures 1 to 23 As shown, the embodiment of the present invention provides a bridge deck installation construction process based on road and bridge engineering, which can effectively overcome the disadvantages of traditional processes in terms of structural safety, construction efficiency, splicing quality, etc., making the installation of bridge decks in road and bridge engineering more reliable and efficient. Specifically, it includes the following steps:

[0083] S1: Use a truck crane to lift the parts of the bridge erecting machine to the cast-in-place beam bridge deck, and then continue to support the bridge erecting machine above the cast-in-place beam bridge deck for assembly, and set the first car (i.e., crane ① in the figure) and the second car (i.e., crane ② in the figure) on the upper part of the bridge erecting machine corresponding to the left and right spans respectively, wherein the distance between the first car and the right end of the bridge erecting machine is set to 4.56m, and the distance between the second car and the left end of the bridge erecting machine is set to 14.39m;

[0084] S2: The bridge erecting machine moves along the longitudinal direction of the bridge to the position where the current bridge deck is to be erected;

[0085] S301: On the first day, the vehicle lifts the bridge deck E1 at the lifting position on the right sidewalk, and on the second day, the vehicle remains at the same position;

[0086] At the top of the outer edge of the web of the outer steel beam of the left and right spans, steel and steel plates are laid as rear outrigger adjustment supports, and at the top of the inner edge of the web of the outer steel beam of the left and right spans, steel and steel plates are laid as middle outrigger track supports; the distance between the rear outrigger adjustment support and the middle outrigger track support in the left and right spans is set to 4.25m, and the distance between the two groups of middle outrigger track supports is set to 21.69m; the distance between the first rear outrigger adjustment support (i.e., rear ① in the figure) and the first trolley is set to 5.20m;

[0087] at this time:

[0088] Mstable = (4.25 + 21.69 + 4,25) * P after + (21.69 + 4.25) * P middle ② + P middle ① * 4.25 = 515.95t,m;

[0089] M tilt = 5.2*(P middle + G car + G plate) = 192.92t, m;

[0090] Safety factor = 515.95 / 192.92 = 2.67, which is greater than 1.5 and meets the requirements;

[0091] At this time, the stabilizing moment of the main beam and the stabilizing moment of the other overhead crane are not considered, so the safety factor meets the standard in normal use;

[0092] S302: After the first car lifts the bridge deck E1, it continues to move horizontally 17.04m to the top of the inner edge of the web of the inner steel beam on the right span, and the second car remains in the same position;

[0093] S303: On the first day, the vehicle moves horizontally to the lifting position on the right sidewalk to lift the bridge deck E2, and on the second day, the vehicle remains in the same position;

[0094] S304: The first car hoists the bridge deck E2 and continues to move horizontally 16.79m to the bridge deck E1, and the second car remains in the same position;

[0095] S305: The first car returns to the lifting position on the right sidewalk. After the first car is in place, the second car moves 12.2m laterally to the bridge deck E1 to lift the bridge deck E2;

[0096] S306: The second car hoists the bridge deck E2 and moves it horizontally by 6.72m to the top of the inner edge of the web plate of the left inner steel beam symmetrical to the bridge deck E1. The first car remains in the same position;

[0097] S401: On the second day, the trolley is moved to a non-lifting fixed position, and the first middle leg adjustment support (i.e., center ① in the figure) is continuously moved horizontally to the inner edge position of the inner steel beam web corresponding to the bridge deck E1, and the second middle leg adjustment support (i.e., center ② in the figure) is moved horizontally to the inner edge position of the inner steel beam web corresponding to the bridge deck E2;

[0098] Continue to use the first car to lift the bridge panel F1 on the right side of the access road, and the second car remains in place;

[0099] S402: The first trolley hoists the bridge deck F1 and moves it horizontally by 11.54m to the side of the bridge deck E1, and the bridge deck F1 is located at the top of the outer edge of the web of the inner steel beam on the right span and the top of the inner edge of the web of the outer steel beam. The second trolley does not move;

[0100] S403: On the first day, the vehicle moves horizontally to the right sidewalk hanging board position to lift the bridge panel D1, and on the second day, the vehicle position remains unchanged;

[0101] At this time: the distance between the first middle leg adjustment support and the first rear leg adjustment support is 12.69m, the distance between the first middle leg adjustment support and the second middle leg adjustment support is 4.81m, and the distance between the first trolley and the first rear leg adjustment support is 5.2m;

[0102] Mstable=(12.69+4.81+12.69)*Pafter+(4.81+12.69)*Pzhong②+Pzhong①*12,69=515.95t,m;

[0103] M tilt = 5.2*(P middle + G car + G plate) = 192.92t,m;

[0104] Safety factor = 515.95 / 192.92 = 2.67, which is greater than 1.5 and meets the requirements;

[0105] At this time, the stabilizing moment of the main beam and the stabilizing moment of the other overhead crane are not considered, so the safety factor meets the standard in normal use;

[0106] S404: On the first day, the crane hoisted the bridge deck D1 and moved it horizontally by 6.05m to the top of the outer web of the right outer steel beam. On the second day, the crane remained in the same position.

[0107] S405: Connect the bridge deck E1, the bridge deck F1, and the bridge deck D1 along the transverse wet joints by 1 / 3 with steel bars, so that the bridge deck E1, the bridge deck F1, and the bridge deck D1 are integrated;

[0108] The first car moves to the lifting position of the right sidewalk, and then moves the first middle leg to adjust the support to the top position of the inner edge of the web of the right outer steel beam. After the first middle leg is adjusted to the right position, the first car lifts the bridge deck D2, and the second car remains in the same position;

[0109] At this time: the distance between the second middle outrigger adjustment support and the second rear outrigger adjustment support (i.e., the distance between the first middle outrigger adjustment support and the second middle outrigger adjustment support is 12.69m, the distance between the first middle outrigger adjustment support and the first rear outrigger adjustment support is 13.25m, the distance between the first outrigger adjustment support and the first rear outrigger adjustment support is 4.25m, and the distance between the first car and the first rear outrigger adjustment support is 5.2m;

[0110] Mstable = (12.69 + 13.25 + 4.25) * P after + (13.25 + 4.25) P middle ② + P middle ① * 4.25 = 515.95t, m;

[0111] M tilt = 5.2*(P middle + G car + G plate) = 192.92t,m;

[0112] Safety factor = 515.95 / 192.92 = 2.67, which is greater than 1.5 and meets the requirements;

[0113] At this time, the stabilizing moment of the main beam and the stabilizing moment of the other overhead crane are not considered, so the safety factor meets the standard in normal use;

[0114] S406: Continue to use the first car to lift the bridge deck D2 and move it horizontally 16.1m to the upper part of the bridge deck E1, and the second car remains in the same position;

[0115] S407: The first-day vehicle moves to the lifting position of the right sidewalk, and the second-day vehicle moves to the bridge deck E1 position. After the first-day vehicle is in place and does not move, the second-day vehicle lifts the bridge deck D2;

[0116] S408: The second car hoists the bridge deck D2 and moves horizontally 18.44m to the top of the outer web of the left outer steel beam. The first car remains in place;

[0117] S409: The second-day vehicle moves horizontally to the position where the deck is not suspended. After the second-day vehicle moves horizontally to the position, the first-day vehicle lifts the bridge deck F2 at the right sidewalk position;

[0118] S4010: The first car hoisted the bridge deck F2 and moved horizontally 17.89m to the upper part of the bridge deck E1, while the second car remained in the same position;

[0119] S4011: The first-day vehicle moves to the lifting position of the right sidewalk, and the second-day vehicle moves to the bridge deck E1 position. After the first-day vehicle is in place and does not move, the second-day vehicle lifts the bridge deck F2;

[0120] S4012: The second day's car hoisted the bridge deck F2 and moved it horizontally 11.16m to the top of the outer edge of the web of the inner steel beam on the left span and the top of the inner edge of the web of the outer steel beam. The first day's car did not move;

[0121] S501: Transversely move the second middle leg to adjust the support to the initial position;

[0122] S502: The bridge erection machine moves longitudinally along the bridge to the next bridge deck position, and continues to erect the bridge deck according to steps S3 and S4, and repeats the cycle until the bridge deck is erected.

[0123] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A bridge deck installation construction process based on road and bridge engineering, characterized in that: The steps include: Equipped with a bridge erecting machine and double overhead crane structure; Control the bridge erection machine and the double overhead crane structure to move along the longitudinal direction of the bridge to the position where the bridge deck is to be erected; Continue to configure steel beam webs and outrigger adjustment support structures corresponding to the left and right sides of the pier, and hoist the bridge deck to the inner steel beam webs configured on the left and right sides according to the bridge erection machine and double overhead crane structure; Continue to hoist the bridge deck between the inner and outer steel beam webs and the outer steel beam webs configured on the left and right sides according to the bridge erection machine and double overhead crane structure, and use the outrigger adjustment support structure to provide limited support for the bridge deck; Control the legs to adjust the support structure back to its original position and move it as a whole to the next erection station.

2. The bridge deck installation construction process based on road and bridge engineering according to claim 1 is characterized in that: The configuration of the bridge erecting machine and the double overhead crane structure specifically includes: The scattered parts of the bridge-erecting machine are lifted to the cast-in-place beam bridge deck by a truck crane, and then the bridge-erecting machine is assembled by continuing to be supported above the cast-in-place beam bridge deck. The first and second cars are set on the upper part of the bridge-erecting machine corresponding to the left and right spans respectively. The distance between the first car and the right end of the bridge-erecting machine is set to 4.56m, and the distance between the second car and the left end of the bridge-erecting machine is set to 14.39m.

3. The bridge deck installation construction process based on road and bridge engineering according to claim 2 is characterized in that: The steel beam webs and the leg adjustment support structures are respectively configured corresponding to the left and right sides of the pier, and the bridge deck is hoisted to the inner steel beam webs configured on the left and right sides according to the bridge erection machine and the double overhead crane structure, specifically including: On the first day, the vehicle lifted the bridge deck E1 at the lifting position on the right sidewalk, and on the second day, the vehicle remained in the same position; At the top of the outer edge of the web of the outer steel beam of the left and right spans, steel sections and steel plates are laid as rear outrigger adjustment supports, and at the top of the inner edge of the web of the outer steel beam of the left and right spans, steel sections and steel plates are laid as middle outrigger track supports; the distance between the rear outrigger adjustment support and the middle outrigger track support in the left and right spans is set to 4.25m, and the distance between the two groups of middle outrigger track supports is set to 21.69m; the distance between the first rear outrigger adjustment support and the first trolley is set to 5.20m; at this time: Mstable = (4.25 + 21.69 + 4,25) * P after + (21.69 + 4.25) * P middle ② + P middle ① * 4.25 = 515.95t,m; M tilt = 5.2*(P middle + G car + G plate) = 192.92t, m; Safety factor = 515.95 / 192.92 = 2.67, which is greater than 1.5 and meets the requirements; The stabilizing moment of the main beam and the stabilizing moment of the other overhead crane are not considered at this time, so normal use has a safety factor that meets the standard.

4. The bridge deck installation construction process based on road and bridge engineering according to claim 3 is characterized in that: The steel beam webs and leg adjustment support structures are respectively configured corresponding to the left and right sides of the pier, and the bridge deck is hoisted to the inner steel beam webs configured on the left and right sides according to the bridge erection machine and the double overhead crane structure, which specifically also includes: On the first day, the car hoisted the bridge deck E1 and then moved horizontally for 17.04m to the top of the inner edge of the web of the right inner steel beam. On the second day, the car remained in the same position. On the first day, the vehicle was moved horizontally to the lifting position on the right access road to lift the bridge deck E2, and on the second day, the vehicle remained in the same position; On the first day, the crane hoisted bridge deck E2 and continued to move horizontally 16.79m to bridge deck E1. On the second day, the crane remained in the same position. The first day vehicle returned to the lifting position on the right sidewalk. After the first day vehicle was in place, the second day vehicle moved 12.2m laterally to bridge deck E1 to lift bridge deck E2; On the second day, the car hoisted the bridge deck E2 and moved it horizontally 6.72m to the top of the inner edge of the web of the left inner steel beam symmetrical to the bridge deck E1. The position of the first day car remained unchanged.

5. The bridge deck installation construction process based on road and bridge engineering according to claim 4 is characterized in that: The bridge deck is hoisted between the inner and outer steel beam webs and the outer steel beam webs configured on the left and right sides according to the bridge erection machine and the double overhead crane structure, and the bridge deck is supported by the support structure with supporting legs to limit the position, which specifically includes: On the second day, the vehicle is moved to a fixed position without lifting, and the first middle leg is continuously moved horizontally to adjust the support to the inner edge of the inner steel beam web corresponding to the bridge deck E1, and the second middle leg is moved horizontally to adjust the support to the inner edge of the inner steel beam web corresponding to the bridge deck E2; Continue to use the first car to lift the bridge panel F1 on the right side of the access road, and the second car remains in place; On the first day, the crane hoisted the bridge deck F1 and moved it horizontally 11.54m to the side of the bridge deck E1. The bridge deck F1 was located at the top of the outer edge of the web of the inner steel beam on the right span and the top of the inner edge of the web of the outer steel beam. The position of the crane remained unchanged on the second day.

6. The bridge deck installation construction process based on road and bridge engineering according to claim 5 is characterized in that: The bridge deck is hoisted between the inner and outer steel beam webs and the outer steel beam webs configured on the left and right sides according to the bridge erection machine and the double overhead crane structure, and the bridge deck is supported by the support structure with supporting legs to limit the position, which specifically includes: On the first day, the vehicle moves horizontally to the right sidewalk hanging board position to lift the bridge deck D1, and on the second day, the vehicle remains in the same position; At this time: the distance between the first middle outrigger adjustment support and the first rear outrigger adjustment support is 12.69m, the distance between the first middle outrigger adjustment support and the second middle outrigger adjustment support is 4.81m, and the distance between the first trolley and the first rear outrigger adjustment support is 5.2m; Mstable=(12.69+4.81+12.69)*Pafter+(4.81+12.69)*Pzhong②+Pzhong①*12,69=515.95t,m; M tilt = 5.2*(P middle + G car + G plate) = 192.92t,m; Safety factor = 515.95 / 192.92 = 2.67, which is greater than 1.5 and meets the requirements; At this time, the stabilizing moment of the main beam and the stabilizing moment of the other overhead crane are not considered, so the safety factor meets the standard in normal use; On the first day, the crane hoisted the bridge deck D1 and moved it horizontally 6.05m to the top of the outer edge of the web of the outer steel beam on the right span. On the second day, the crane remained in the same position.

7. The bridge deck installation construction process based on road and bridge engineering according to claim 6 is characterized in that: The bridge deck is hoisted between the inner and outer steel beam webs and the outer steel beam webs configured on the left and right sides according to the bridge erection machine and the double overhead crane structure, and the bridge deck is supported by the support structure with supporting legs to limit the position, which specifically includes: Use steel bars to connect bridge deck E1, bridge deck F1 and bridge deck D1 along the transverse wet joints of the bridge by 1 / 3, so that bridge deck E1, bridge deck F1 and bridge deck D1 are integrated.

8. The bridge deck installation construction process based on road and bridge engineering according to claim 7 is characterized in that: The bridge deck is hoisted between the inner and outer steel beam webs and the outer steel beam webs configured on the left and right sides according to the bridge erection machine and the double overhead crane structure, and the bridge deck is supported by the support structure with supporting legs to limit the position, which specifically includes: The first car moves to the lifting position of the right sidewalk, and then moves the first middle leg to adjust the support to the top position of the inner edge of the web of the right outer steel beam. After the first middle leg is adjusted to the right position, the first car lifts the bridge deck D2, and the second car remains in the same position; At this time: the distance between the second middle outrigger adjustment support and the second rear outrigger adjustment support is 12.69m, the distance between the first middle outrigger adjustment support and the second middle outrigger adjustment support is 13.25m, the distance between the first middle outrigger adjustment support and the first rear outrigger adjustment support is 4.25m, and the distance between the first trolley and the first rear outrigger adjustment support is 5.2m; Mstable = (12.69 + 13.25 + 4.25) * P after + (13.25 + 4.25) P middle ② + P middle ① * 4.25 = 515.95t, m; M tilt = 5.2*(P middle + G car + G plate) = 192.92t,m; Safety factor = 515.95 / 192.92 = 2.67, which is greater than 1.5 and meets the requirements; At this time, the stabilizing moment of the main beam and the stabilizing moment of the other overhead crane are not considered, so the safety factor meets the standard in normal use; The first day car was used to lift the bridge deck D2 and moved it 16.1m horizontally to the upper part of the bridge deck E1. The second day car remained in the same position. The first day vehicle moves to the lifting position on the right sidewalk, and the second day vehicle moves to the bridge deck E1 position. After the first day vehicle is in place and does not move, the second day vehicle lifts the bridge deck D2. On the second day, the car hoisted the bridge deck D2 and moved it horizontally 18.44m to the top of the outer edge of the web of the left outer steel beam. The position of the car on the first day remained unchanged.

9. The bridge deck installation construction process based on road and bridge engineering according to claim 8 is characterized in that: The bridge deck is hoisted between the inner and outer steel beam webs and the outer steel beam webs configured on the left and right sides according to the bridge erection machine and the double overhead crane structure, and the bridge deck is supported by the support structure with supporting legs to limit the position, which specifically includes: The second day's vehicle moves horizontally to the position where the deck is not suspended. After the second day's vehicle moves horizontally to the position, the first day's vehicle lifts the bridge deck F2 at the right sidewalk position; On the first day, the crane hoisted the bridge deck F2 and moved it horizontally 17.89m to the upper part of the bridge deck E1. On the second day, the crane remained in the same position. The first day vehicle moves to the lifting position on the right sidewalk, and the second day vehicle moves to the bridge deck E1 position. After the first day vehicle is in place and does not move, the second day vehicle lifts the bridge deck F2. On the second day, the crane hoisted the bridge deck F2 and moved it horizontally 11.16m to the top of the outer edge of the web of the inner steel beam on the left span and the top of the inner edge of the web of the outer steel beam. The position of the crane on the first day remained unchanged.

10. The bridge deck installation construction process based on road and bridge engineering according to claim 9 is characterized in that: The control leg adjusts the support frame back to its original position and moves the whole structure to the next erection station, specifically including: Move the second middle support leg horizontally to adjust the support to the initial position; The bridge erection machine moves longitudinally along the bridge to the position of the next bridge deck, and continues to erect the bridge deck according to steps S3 and S4, and repeats the process until the erection of the bridge deck is completed.

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