CN113427629A - Post-tensioning method prestress box girder movable type tensioning trolley system - Google Patents

Post-tensioning method prestress box girder movable type tensioning trolley system Download PDF

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Publication number
CN113427629A
CN113427629A CN202110650396.4A CN202110650396A CN113427629A CN 113427629 A CN113427629 A CN 113427629A CN 202110650396 A CN202110650396 A CN 202110650396A CN 113427629 A CN113427629 A CN 113427629A
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CN
China
Prior art keywords
trolley
longitudinal
tensioning
post
box girder
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Pending
Application number
CN202110650396.4A
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Chinese (zh)
Inventor
杨彪
程永志
巨高权
任忠生
张有军
左金伟
唐忠伟
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CCCC SHEC Third Highway Engineering Co Ltd
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CCCC SHEC Third Highway Engineering Co Ltd
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Priority to CN202110650396.4A priority Critical patent/CN113427629A/en
Publication of CN113427629A publication Critical patent/CN113427629A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/02Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
    • B28B23/04Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
    • B28B23/043Wire anchoring or tensioning means for the reinforcements

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)

Abstract

The invention provides a post-tensioning method prestressed box girder movable type tensioning trolley system which comprises a tractor and a movable trolley, wherein the movable trolley comprises a trolley chassis, a supporting upright post and a functional mechanism; the trolley chassis comprises travelling wheels, travelling bearings, trolley longitudinal beams, trolley cross beams, a placing platform and a pedestrian passage, wherein the trolley cross beams and the trolley longitudinal beams form a frame structure, the placing platform and the pedestrian passage are arranged above the frame structure, and the supporting upright columns are vertically arranged above the trolley longitudinal beams; the functional mechanism comprises a cross beam, a longitudinal moving trolley, a hoist crane track beam and a hoist crane, wherein the hoist crane track beam is transversely arranged and cooperates with the longitudinal moving trolley to realize longitudinal movement and transverse movement of the precast box beam. The invention realizes the comprehensive functions of lifting and moving by utilizing the hoisting block, the longitudinal moving trolley and the tractor, reduces the occupied time and the configuration quantity of the gantry crane of the precast beam yard, reduces the cost and improves the construction efficiency.

Description

Post-tensioning method prestress box girder movable type tensioning trolley system
Technical Field
The invention belongs to the technical field of prestressed box girder installation and construction, and particularly relates to a post-tensioning prestressed box girder movable type tensioning trolley system.
Background
In the post-tensioning method prestressed concrete box girder construction process, the prestressed construction is a key process. Need carry out the stretch-draw construction to the box girder that reaches intensity, age, bullet mould requirement after pouring, need transport the installation with the help of the portal crane in precast beam yard among the stretch-draw construction process among the prior art, very big increase the occupation time and the configuration quantity of precast beam yard portal crane, increased the cost, also reduced the efficiency of construction, consequently need urgently need be used for the device that post-tensioning method prestressed concrete box girder removed and stretch-draw always specially.
Disclosure of Invention
The invention provides a post-tensioning method prestress box girder movable type tensioning trolley system which can effectively reduce the occupied time and the configuration quantity of a precast girder yard gantry crane, effectively improve the prestress tensioning construction efficiency and reduce the construction cost.
The technical scheme of the invention is as follows: the utility model provides a post-tensioning prestressing force case roof beam movable type stretch-draw platform truck system, includes tractor, mobile station truck, the mobile station truck includes the platform truck chassis of bottom, sets up the support post on the platform truck chassis, sets up the functional mechanism in the support post top, the platform truck chassis includes the walking wheel, connects the walking bearing of walking wheel, vertically sets up the platform truck longeron in walking bearing top, transversely sets up the platform truck crossbeam between the platform truck longeron, place the platform, the people's walk passageway, platform truck crossbeam and platform truck longeron form the frame construction, place the platform and the people's walk passageway sets up in the frame construction top, the support post is vertical to be set up in the top of platform truck longeron, the functional mechanism includes the crossbeam of transversely setting in the support post top, vertically sets up the longeron above the crossbeam, the longitudinally movable dolly of slip setting on the longeron, sets up the hoist block track roof beam above the longitudinally movable dolly, The hoisting block is arranged at the lower end of the hoisting block track beam in a sliding mode, the hoisting block track beam is transversely arranged, and the hoisting block track beam and the longitudinal moving trolley cooperate to achieve longitudinal movement and transverse movement of the prefabricated box beam.
Preferably, a rain shelter is arranged above the cross beam and comprises a door-shaped support transversely arranged above the cross beam and rain shielding cloth arranged above the door-shaped support.
Preferably, the cross section of each support upright is of a quadrilateral structure, and the opposite surfaces of the two transverse support uprights are provided with protection plates.
Preferably, vertically adjacent two be equipped with the vertical tie beam of platform truck between the support post, horizontal adjacent two be equipped with the horizontal tie beam of platform truck between the support post, the horizontal tie beam of platform truck sets up the inboard at the guard plate, the vertical tie beam of platform truck and the horizontal tie beam of platform truck are constituteed by down tube and horizon bar.
Preferably, the mobile trolley and the tractor are connected through a pin shaft, a mounting hole is formed in a trolley longitudinal beam of the trolley chassis, a connecting rod is arranged at the rear end of the tractor, a pin hole consistent with the mounting hole is formed in the connecting rod, and the pin shaft penetrates through the pin hole and the mounting hole to fixedly connect the mobile trolley and the tractor.
Preferably, a connecting flange is arranged above the walking bearing and below the trolley longitudinal beam, and a fixing bolt I is fixed on the connecting flange to fixedly connect the walking bearing and the trolley longitudinal beam.
Preferably, support post and crossbeam pass through I fixed connection of connecting piece, connecting piece I is including setting up at support post upper end and crossbeam lower extreme connecting plate I, setting arc clamp plate I, the connecting bolt I on the crossbeam, be equipped with a plurality of connecting holes on connecting plate I and the arc clamp plate I, connecting bolt I passes the connecting hole and will support post and crossbeam fixed connection.
Preferably, crossbeam and longeron pass through II fixed connection of connecting piece, connecting piece II is including setting up at crossbeam upper end and longeron lower extreme connecting plate II, setting up arc clamp plate II, connecting bolt II on the longeron, set up fixed cover, the fixing bolt II in II bottoms of connecting plate of crossbeam upper end, be equipped with a plurality of connecting holes on connecting plate II and the arc clamp plate II, connecting bolt II passes the connecting hole fixed, the crossbeam passes fixed cover and passes through fixing bolt II fixedly, ensures overall structure's reliable and stable connection.
Preferably, a plurality of reinforcing ribs are arranged between the connecting plate I arranged at the upper end of the supporting upright and the supporting upright.
Preferably, the longitudinal moving trolley and the hoist crane track beam are fixedly connected through bolts.
The invention has the advantages that: the invention uses the hoist block to lift, the longitudinal movement of the longitudinal moving trolley and the transverse movement of the hoist block to place the precast box girder on the moving trolley, and then uses the tractor to draw the precast box girder to the position to be installed, thereby realizing the comprehensive functions of lifting and moving, reducing the occupied time and the configuration quantity of the gantry crane in the precast girder yard, reducing the cost and improving the construction efficiency.
Drawings
FIG. 1 is a front view of a movable tensioning trolley system of a post-tensioning prestressed box girder;
FIG. 2 is a structural side view of a post-tensioned prestressing box girder mobile tensioning trolley system of the invention;
FIG. 3 is a partial enlarged view of the portion A in FIG. 1 of the post-tensioned prestressing box girder moving type tensioning trolley system of the invention;
FIG. 4 is a partial enlarged view of a portion B of the movable tensioning trolley system for post-tensioned prestressing box girders according to the invention;
FIG. 5 is a partial enlarged view of the post-tensioned prestressing box girder moving type tensioning trolley system at the position C in FIG. 2;
FIG. 6 is a schematic structural view of a canopy of the post-tensioned prestressing box girder mobile tensioning trolley system of the invention;
FIG. 7 is a schematic diagram of a placing structure of precast box girders in a precast girder field;
wherein: 1. tractor, 2, trolley chassis, 2-1, traveling wheels, 2-2, traveling bearings, 2-3, trolley longitudinal beams, 2-4, trolley cross beams, 2-5, fixing bolts I, 2-6, connecting flanges, 3, supporting columns, 4, trolley longitudinal connecting beams, 5, cross beams, 6, longitudinal moving trolleys, 7, longitudinal beams, 8, hoist rail beams, 9, hoist blocks, 10, rain shelters, 101, rain shelters, 102, door-shaped supports, 11, prefabricated box beams, 12, protection plates, 13, trolley transverse connecting beams, 14, arc-shaped pressing plates I, 15, connecting plates I, 16, connecting bolts I, 17, arc-shaped pressing plates II, 18, connecting bolts II, 19, connecting plates II, 20, fixing sleeves, 21, fixing bolts II, 22, prestress beams, 23 and stem storage beams.
Detailed Description
The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which a person skilled in the art can, without any creative effort, fully implement the present invention.
The specific implementation mode of the invention is as follows: as shown in fig. 1-7, a post-tensioning prestressed box girder mobile tensioning trolley system comprises a tractor 1 and a mobile trolley, wherein the mobile trolley comprises a trolley chassis 2 at the bottom, a support upright post 3 arranged on the trolley chassis 2 and a functional mechanism arranged above the support upright post 3, the trolley chassis 2 comprises travelling wheels 2-1, travelling bearings 2-2 transversely arranged and connected with the travelling wheels 2-1, trolley longitudinal beams 2-3 longitudinally arranged above the travelling bearings 2-2, trolley cross beams 2-4 transversely arranged between the trolley longitudinal beams 2-3, a placing platform and a pedestrian passageway, the trolley cross beams 2-4 and the trolley longitudinal beams 2-3 form a frame structure, the placing platform and the pedestrian passageway are arranged above the frame structure and used for placing a jack and a numerical control oil pump, the vertical setting of support post 3 is in the top of platform truck longeron 2-3, the functional mechanism is including transversely setting up crossbeam 5 on 3 tops of support post, vertically setting up longeron 7 above crossbeam 5, the vertical movement dolly 6 of slip setting on longeron 7, set up the hoist crane track roof beam 8 in vertical movement dolly 6 top, the hoist crane 9 of slip setting at hoist crane track roof beam 8 lower extreme, 5 unsettled settings of crossbeam one end, hoist crane track roof beam 8 transversely sets up, realizes prefabricated box girder 11's longitudinal movement and lateral shifting with vertical movement dolly 6 in coordination.
In a preferred but non-limiting embodiment of the invention, above said crossbeam 5 there is a canopy 10, said canopy 10 comprising a portal 102 arranged laterally above the crossbeam 5 and a tarpaulin 101 arranged above the portal 102.
In a preferred but not limiting embodiment of the invention, the support uprights 3 are quadrangular in cross section, and the two support uprights 3 in the transverse direction are provided with protective plates 12 on opposite faces.
In a preferred but non-limiting embodiment of the present invention, a trolley longitudinal connecting beam 4 is arranged between two longitudinally adjacent supporting columns 3, a trolley transverse connecting beam 13 is arranged between two transversely adjacent supporting columns 3, the trolley transverse connecting beam 13 is arranged inside a protection plate 12, and the trolley longitudinal connecting beam 4 and the trolley transverse connecting beam 13 are both composed of an inclined rod and a horizontal rod, so as to enhance the stability of the moving trolley.
In a preferred but non-limiting embodiment of the present invention, the mobile trolley and the towing vehicle 1 are connected by a pin, a mounting hole is formed on a trolley longitudinal beam 2-3 of the trolley chassis 2, a connecting rod is arranged at the rear end of the towing vehicle 1, a pin hole consistent with the mounting hole is formed on the connecting rod, the pin passes through the pin hole and the mounting hole to fixedly connect the mobile trolley and the towing vehicle 1, and the towing vehicle 1 drives the mobile trolley to move.
In a preferred but non-limiting embodiment of the invention, a connecting flange 2-6 is arranged above the walking bearing 2-2 and below the trolley longitudinal beam 2-3, a fixing bolt I2-5 is fixed on the connecting flange 2-6 to fixedly connect the walking bearing 2-2 and the trolley longitudinal beam 2-3, a fixing sleeve 20 is arranged at the bottom of the connecting flange 2-6 above the walking bearing 2-2, and the walking bearing 2-2 penetrates through the fixing sleeve 20 and is fixed through a fixing bolt II 21.
In a preferred but non-limiting embodiment of the present invention, the supporting upright 3 and the cross beam 5 are fixedly connected through a connecting piece i, the connecting piece i comprises a connecting plate i 15 arranged at the upper end of the supporting upright 3 and the lower end of the cross beam 5, an arc-shaped pressing plate i 14 arranged at the upper end of the cross beam 5, and a connecting bolt i 16, a plurality of connecting holes are arranged on the connecting plate i 15 and the arc-shaped pressing plate i 14, and the connecting bolt i 16 penetrates through the connecting holes to fixedly connect the supporting upright 3 and the cross beam 5.
In a preferred but non-limiting embodiment of the invention, the cross beam 5 and the longitudinal beam 7 are fixedly connected through a connecting piece II, the connecting piece II comprises a connecting plate II 19 arranged at the upper end of the cross beam 5 and the lower end of the longitudinal beam 7, an arc-shaped pressing plate II 17 arranged at the upper end of the longitudinal beam 7, a connecting bolt II 18, a fixing sleeve 20 arranged at the bottom of the connecting plate II 19 at the upper end of the cross beam 5 and a fixing bolt II 21, a plurality of connecting holes are formed in the connecting plate II 19 and the arc-shaped pressing plate II 17, the connecting bolt II 18 penetrates through the connecting holes to be fixed, and the cross beam 5 penetrates through the fixing sleeve 20 and is fixed through the fixing bolt II 21, so that stable and reliable connection of the whole structure is ensured.
In a preferred but not limiting embodiment of the invention, a plurality of reinforcing ribs are provided between said connecting plate i 15, arranged at the upper end of the support upright 3, and the support upright 3.
In a preferred but not limiting embodiment of the invention, said longitudinal trolley 6 and hoist trolley 8 are fixedly connected by means of bolts.
The using process of the invention is as follows: the prefabricated box girder 11 is stored on the girder storage stalk 23 of the prefabricated girder yard, the movable trolley is moved to the prefabricated box girder 11 through the tractor 1, the crane block 9 is used for lifting the prefabricated box girder 11 to be higher than the trolley chassis 2, the longitudinal movement of the longitudinal movable trolley 6 and the transverse movement of the crane block 9 are used for placing the prefabricated box girder 11 on the frame structure of the trolley chassis 2, and then the tractor 1 is used for dragging the prefabricated box girder to the place to be installed, so that the occupied time and the configuration number of the gantry crane of the prefabricated girder yard are reduced, the cost is reduced, and the construction efficiency is also improved.
While the preferred embodiments of the invention have been described, it is to be understood that the invention is not limited to the precise embodiments described, and that equipment and structures not described in detail are understood to be practiced as commonly known in the art; any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention by those skilled in the art can be made without departing from the technical scope of the present invention, and still fall within the protection scope of the technical solution of the present invention.

Claims (10)

1. A post-tensioning method prestressed box girder movable type tensioning trolley system is characterized by comprising a tractor and a movable trolley, wherein the movable trolley comprises a trolley chassis at the bottom, a supporting upright arranged on the trolley chassis and a functional mechanism arranged above the supporting upright;
the trolley chassis comprises walking wheels, walking bearings connected with the walking wheels, trolley longitudinal beams longitudinally arranged above the walking bearings, trolley cross beams transversely arranged between the trolley longitudinal beams, a placing platform and a pedestrian passage, wherein the trolley cross beams and the trolley longitudinal beams form a frame structure, the placing platform and the pedestrian passage are arranged above the frame structure, and the supporting stand column is vertically arranged above the trolley longitudinal beams;
the functional mechanism comprises a transverse beam transversely arranged at the top end of the supporting stand column, a longitudinal beam longitudinally arranged above the transverse beam, a longitudinal moving trolley arranged on the longitudinal beam in a sliding mode, a hoist rail beam arranged above the longitudinal moving trolley, and a hoist arranged at the lower end of the hoist rail beam in a sliding mode, wherein the hoist rail beam is transversely arranged and cooperates with the longitudinal moving trolley to realize longitudinal movement and transverse movement of the prefabricated box beam.
2. The post-tensioned pre-stressed box girder mobile tensioning trolley system according to claim 1, wherein a canopy is provided above the beam, the canopy comprising a gate bracket transversely provided above the beam and a canopy cloth provided above the gate bracket.
3. The movable post-tensioned prestressed box girder tensioning trolley system according to claim 1, wherein said supporting columns are quadrilateral in cross section, and protection plates are provided on opposite sides of two transverse supporting columns.
4. The post-tensioned pre-stressed box girder mobile tensioning trolley system according to claim 1, wherein a trolley longitudinal connecting beam is arranged between two longitudinally adjacent supporting columns, a trolley transverse connecting beam is arranged between two transversely adjacent supporting columns, the trolley transverse connecting beam is arranged on the inner side of a protection plate, and the trolley longitudinal connecting beam and the trolley transverse connecting beam are composed of an inclined rod and a horizontal rod.
5. The post-tensioned pre-stressed box girder mobile tensioning trolley system according to claim 1, wherein the mobile trolley and the towing vehicle are connected through a pin shaft, the trolley longitudinal beam of the trolley chassis is provided with a mounting hole, the rear end of the towing vehicle is provided with a connecting rod, the connecting rod is provided with a pin hole which is consistent with the mounting hole, and the pin shaft penetrates through the pin hole and the mounting hole to fixedly connect the mobile trolley and the towing vehicle.
6. The movable tensioning trolley system for the post-tensioning prestressed box girders according to claim 1, wherein connecting flanges are arranged above the walking bearings and below the trolley longitudinal girders, and fixing bolts I are fixed on the connecting flanges to fixedly connect the walking bearings and the trolley longitudinal girders.
7. The movable post-tensioning prestressed box girder tensioning trolley system according to claim 1, wherein the supporting upright and the cross beam are fixedly connected through a connecting piece I, the connecting piece I comprises a connecting plate I arranged at the upper end of the supporting upright and the lower end of the cross beam, an arc-shaped pressing plate I arranged at the upper end of the cross beam and a connecting bolt I, a plurality of connecting holes are formed in the connecting plate I and the arc-shaped pressing plate I, and the connecting bolt I penetrates through the connecting holes to fixedly connect the supporting upright and the cross beam.
8. The movable post-tensioning prestressed box girder tensioning trolley system according to claim 1, wherein the cross beam and the longitudinal beam are fixedly connected through a connecting piece II, the connecting piece II comprises a connecting plate II arranged at the upper end of the cross beam and the lower end of the longitudinal beam, an arc-shaped pressing plate II arranged at the upper end of the longitudinal beam, a connecting bolt II, a fixing sleeve arranged at the bottom of the connecting plate II arranged at the upper end of the cross beam and a fixing bolt II, a plurality of connecting holes are formed in the connecting plate II and the arc-shaped pressing plate II, the connecting bolt II penetrates through the connecting holes to be fixed, and the cross beam penetrates through the fixing sleeve and is fixed through the fixing bolt II to ensure stable and reliable connection of the whole structure.
9. The movable post-tensioned pre-stressed box girder tensioning trolley system as claimed in claim 7, wherein a plurality of reinforcing ribs are provided between the connecting plate I provided at the upper end of the support post and the support post.
10. The post-tensioned pre-stressed box girder mobile tensioning trolley system according to claim 1, wherein the longitudinal moving trolley and the hoist trolley are fixedly connected by bolts.
CN202110650396.4A 2021-06-11 2021-06-11 Post-tensioning method prestress box girder movable type tensioning trolley system Pending CN113427629A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110650396.4A CN113427629A (en) 2021-06-11 2021-06-11 Post-tensioning method prestress box girder movable type tensioning trolley system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110650396.4A CN113427629A (en) 2021-06-11 2021-06-11 Post-tensioning method prestress box girder movable type tensioning trolley system

Publications (1)

Publication Number Publication Date
CN113427629A true CN113427629A (en) 2021-09-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110650396.4A Pending CN113427629A (en) 2021-06-11 2021-06-11 Post-tensioning method prestress box girder movable type tensioning trolley system

Country Status (1)

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CN (1) CN113427629A (en)

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