CN212426787U - Rail bearing beam shifting system for box beam longitudinal shifting erection construction - Google Patents

Abstract

The utility model relates to a case roof beam indulges and moves the technical field who erects the construction, discloses a case roof beam indulges and moves and erect construction and use bearing rail roof beam shift system, including setting firmly subaerial traction base, traction base has set firmly the hoist engine, and two hoist engines divide the both ends of establishing bearing rail roof beam longitudinal movement stroke for a set of and with two hoist engines of group, and the last traction cable of hoist engine is fixed with the bearing rail roof beam tip that corresponds respectively. The utility model discloses have convenient indulge and move the support rail roof beam, when indulging moving traction force source position is difficult for squinting and support rail roof beam indulge and move stable effect.

Description

Rail bearing beam shifting system for box beam longitudinal shifting erection construction

Technical Field

The utility model belongs to the technical field of the technique of construction is erect in the case roof beam indulged to move, and especially, relate to the case roof beam indulges to move erects construction and uses support rail roof beam shift system.

Background

The existing bridge construction comprises two parts, namely pier column pouring and box girder erection, wherein erection areas between the box girders and two adjacent pier columns are arranged in a one-to-one correspondence mode, and box girder erection is a process of erecting a single box girder between two adjacent pier columns.

In the existing method for erecting the box girder, a supporting mechanism and a rail bearing girder are sequentially arranged at the lower part of the box girder, the rail bearing girder is symmetrically arranged at two sides of a pier column, and the supporting mechanism and the lower part of the box girder are detachably fixed. The supporting mechanism is controllable in abutting state with the rail bearing beam, and can longitudinally move along the rail bearing beam when abutting against the rail bearing beam. When the supporting mechanism is abutted to the rail bearing beam, the supporting mechanism drives the box beam to longitudinally move to the next pier column interval, the supporting mechanism and the rail bearing beam are separated, the rail bearing beam is longitudinally moved, the supporting mechanism is reset, and the supporting mechanism drives the box beam to longitudinally move to the next pier column interval again. Reciprocating like this, realizing indulging of case roof beam and moving, and then split supporting mechanism and case roof beam realize setting up of case roof beam.

The weight and the volume of the rail bearing beam in the method are larger due to the guiding requirement and the supporting requirement, the required traction force for dragging the rail bearing beam to longitudinally move is large, the construction site of bridge construction is the conventional earthwork ground, and the conventional method for dragging the object to longitudinally move such as automobile traction and the like is difficult to keep the fixation of the source position of the traction force and the stability of the application of the traction force when the method is used in the occasion. Therefore, a device capable of stably moving the rail bearing beam is needed, and the box beam is convenient to longitudinally move, erect and construct.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a case roof beam indulges to move erects construction and uses bearing rail roof beam aversion system, can convenient displacement bearing rail roof beam, realizes the extension of the guide stroke when the case roof beam indulges to move.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the rail supporting beam shifting system for box girder longitudinal moving erection construction comprises a traction base fixedly arranged on the ground, wherein two winches are fixedly arranged on the traction base, the two winches are in a group, two ends of a rail supporting beam longitudinal moving stroke are respectively arranged on the two winches in the same group, and traction steel cables on the winches are respectively fixed with the end parts of the corresponding rail supporting beams.

Through adopting above-mentioned technical scheme, receive and release the pulling cable through the hoist engine and realize dragging to the support rail roof beam to indulge the support rail roof beam, avoid the hoist engine to shift because of pulling the counter-force through pulling the basis, thereby realize the fixed of traction force source position and the stability that the support rail roof beam indulged and move, the support rail roof beam indulges and moves the convenience, and the guide stroke when extension case roof beam indulged and moves is convenient.

The present invention may be further configured in a preferred embodiment as: the traction base comprises a foundation pier which is fixedly arranged on the ground and made of concrete, an anchoring steel plate is embedded in the foundation pier in advance, anchoring steel bars are fixedly welded on the bottom surface of the anchoring steel plate and vertically extend to the lower portion of the foundation pier, and the winch is fixedly welded with the anchoring steel plate.

Through adopting above-mentioned technical scheme, foundation mound, pre-buried steel sheet and anchor reinforcing bar constitute solid foundation, through the compressive strength who conducts the pulling counter-force to underground and this structure has, effectively prevent the hoist engine displacement.

The present invention may be further configured in a preferred embodiment as: the length of the part, located below the foundation pier, of the anchoring steel bar is not less than 30 cm.

Through adopting above-mentioned technical scheme, the fixed demand of reinforcing hoist engine position can't be satisfied to the length undersize that the anchor reinforcing bar is located the basis mound below part, and is not good with the anti tractive effect of reinforcing basis mound through leading to the pulling reaction, and the length that the anchor reinforcing bar is located the basis mound below part is not less than 30cm for the suitable length of the anchor reinforcing bar that prevents the hoist engine displacement.

The present invention may be further configured in a preferred embodiment as: the subaerial slide mechanism and the auxiliary support who is used for guiding the displacement of bearing rail roof beam that is provided with, slide mechanism and pier stud one-to-one set up, the regional one-to-one setting of interval between auxiliary support and the pier stud.

By adopting the technical scheme, the bearing rail beam is guided to longitudinally move through the sliding seat mechanism and the auxiliary support, the offset longitudinal movement path of the bearing rail beam is effectively prevented, the longitudinal movement position of the bearing rail beam is more accurate, and the effect of the bearing rail beam for longitudinally moving and erecting the box beam is better.

The present invention may be further configured in a preferred embodiment as: the other support rail roof beam symmetry that corresponds of pier stud is provided with two slide mechanisms, slide mechanism is including setting up the concrete system slide basis other at the pier stud, the other two slide basis symmetries of pier stud set up, sled type saddle board has set firmly on the slide basis, the quantity of saddle board is two and arranges the setting along the line direction on slide basis, sets up and is in set up the horizontal connecting plate between the two saddle boards on the slide basis, is close to the vertical guide limit that has set firmly on the saddle board of pier stud is close to set up the contact angle steel between two saddle boards of pier stud, press from both sides between saddle board and the slide basis and be equipped with the packing board that adopts the shock attenuation material to make.

Through adopting above-mentioned technical scheme, the slide carriage board makes things convenient for the support rail roof beam to indulge and moves, the displacement route of guide rail roof beam is just guided with the relative one side butt of two support rail roof beams when the support rail roof beam is indulged and moves, the tamping bar carries out the shock attenuation buffering to the support counter-force that comes and the vibration that the support rail roof beam produced because of the box girder displacement of support rail roof beam department conduction, the slide basis provides the support foundation, the cross-linking board, contact angle steel and slide basis effectively prevent the slide carriage board displacement and influence the guide effect that the support rail roof beam is indulged and is moved, effectively guide the support rail roof beam through above-mentioned structure and indulge in the horizontal plane and move.

The present invention may be further configured in a preferred embodiment as: and a tightly-resisting steel plate is clamped between the pier stud and the slide seat plate close to the pier stud.

Through adopting above-mentioned technical scheme, support tight steel sheet and contact angle steel and constitute the spacing structure of counter-force, the possibility of slide plate displacement further reduces, and the effect that the rail supporting beam moved longitudinally and guides is better.

The present invention may be further configured in a preferred embodiment as: the utility model discloses a rail supporting beam, including the support steel sheet, the support steel sheet is fixed firmly on subaerial concrete system support basis, pre-buried on the support basis has the support steel sheet, welded fastening has the supplementary slip table of sled type on the support steel sheet, the quantity of supplementary slip table is two and sets up along rail supporting beam width direction in proper order, erect the strengthening rib between the supplementary slip table.

Through adopting above-mentioned technical scheme, two supplementary slipways support and guide the support rail roof beam between the pier stud and indulge and move, and it is convenient to confirm the periodic stopping point when the support rail roof beam indulges to move, and support steel sheet, support steel sheet and strengthening rib effectively prevent supplementary slipway deformation or displacement, and the guide support rail roof beam is indulged and is moved effectually.

The present invention may be further configured in a preferred embodiment as: the traction device further comprises a steering pulley for limiting the traction direction of the traction steel cable, wherein the steering pulley is arranged beside the pier column close to the winch, and the traction steel cable is wound around the corresponding steering pulley.

By adopting the technical scheme, the direction of the retracting and releasing of the traction steel cable is limited by the steering pulley, so that the traction direction of the longitudinal movement of the support rail beam is always parallel to the longitudinal movement path of the support rail beam, the longitudinal movement of the support rail beam is stable, and the possibility of longitudinal movement position deviation is low.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the longitudinal movement of the bearing rail beam is realized by winding and unwinding the traction steel cable through the winch, the winch is prevented from moving through the concrete foundation pier, the anchoring steel plate and the anchoring steel bar, the fixing stability of the traction source position is good, the reciprocating longitudinal movement of the bearing rail beam is stable, and the longitudinal movement erection construction of the box beam is convenient;

2. the rail supporting beam is supported and guided to move longitudinally through the sliding seat mechanism and the auxiliary sliding table, the rail supporting beam is accurate in longitudinal movement position, small in longitudinal movement resistance and convenient to construct.

Drawings

Fig. 1 is a schematic view of the overall structure of the embodiment.

Fig. 2 is a schematic structural diagram of a traction base according to an embodiment.

Fig. 3 is a schematic structural diagram of a carriage mechanism according to an embodiment.

Fig. 4 is a partially enlarged schematic view of a portion a in fig. 3.

Fig. 5 is a schematic structural diagram of an auxiliary support according to an embodiment.

In the figure, 1, a traction base; 11. foundation piers; 12. anchoring a steel plate; 13. anchoring the reinforcing steel bars; 2. a winch; 21. a traction wire rope; 3. a rail bearing beam; 31. a movable pulley; 4. a slide carriage mechanism; 41. a slide base; 42. a slide chair plate; 421. a guide edge; 43. a cross linking plate; 44. a contact angle steel; 45. a stuffing plate; 46. tightly abutting against the steel plate; 5. an auxiliary support; 51. a support foundation; 52. a support steel plate; 53. an auxiliary sliding table; 54. reinforcing ribs; 6. a diverting pulley; 7. and (5) pier studs.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a box girder indulges to move erects construction and uses support rail roof beam shift system, including setting firmly subaerial traction base 1 and setting up hoist engine 2 on traction base 1. Each support rail beam 3 is provided with two winches 2, and the two winches 2 are respectively positioned at two ends of the longitudinal moving path of the support rail beam 3. Be provided with a plurality of slide mechanisms 4 and auxiliary support 5 on the ground, slide mechanism 4 sets up with pier stud 7 one-to-one, and the regional one-to-one setting of interval between auxiliary support 5 and the pier stud 7. The sliding seat mechanism 4 and the auxiliary support 5 are both positioned on the longitudinal moving path corresponding to the rail bearing beam 3, and the sliding seat mechanism 4 and the auxiliary support 5 which are respectively arranged corresponding to the two rail bearing beams 3 are both positioned on two sides of the pier stud 7.

Referring to fig. 2, the traction base 1 includes a cubic foundation pier 11 fixed on the ground, the foundation pier 11 is made of concrete and the lower part is buried underground. An anchoring steel plate 12 is embedded in the foundation pier 11, and the anchoring steel plate 12 is horizontally arranged and the lower part of the anchoring steel plate is embedded below the top surface of the foundation pier 11. And an anchoring steel bar 13 is fixedly welded on the bottom surface of the anchoring steel plate 12, the anchoring steel bar 13 vertically extends to the lower part of the foundation pier 11, and the bottom end of the anchoring steel bar 13 is positioned underground. The number of the anchoring steel bars 13 is three in the embodiment, and the number can be freely increased or decreased according to the fixing requirement and the specification of the steel bars. The length of the portion of the anchoring reinforcement 13 below the foundation pier 11 is not less than 30cm, and the length of the portion of the anchoring reinforcement 13 below the foundation pier 11 in this embodiment is 35 cm. The winch 2 is arranged above the anchoring steel plate 12, and the bottom of the winch 2 and the top surface of the anchoring steel plate 12 are fixed by temporary welding.

Referring to fig. 1, the end of the rail supporting beam 3 is rotatably connected to a movable pulley 31 having a vertical axis corresponding to the winding machine 2, and the traction cable 21 of the winding machine 2 is wound around the winding machine 2 via the movable pulley 31, so as to fixedly connect the traction cable 21 to the end of the rail supporting beam 3.

A constructor fixes the position of the winch 2 through a traction base 1 consisting of a foundation pier 11, an anchoring steel plate 12 and an anchoring steel bar 13, drags the rail bearing beam 3 to longitudinally move through retraction and release of a traction steel cable 21, the movable pulley 31 enables the traction pulling force required by longitudinal movement of the rail bearing beam 3 to be reduced, the traction base 1 effectively prevents the winch 2 from displacing due to traction counter force, and the sliding seat mechanism 4 and the auxiliary support 5 effectively prevent the rail bearing beam 3 from deviating a longitudinal movement path and reduce the longitudinal movement resistance of the rail bearing beam 3. Through the operation, the longitudinal movement of the rail bearing beam 3 is realized, the longitudinal movement is stable, and the longitudinal movement of the box beam is convenient to erect.

Referring to fig. 1 and 3, the slide mechanism 4 includes a slide base 41 disposed beside the pier stud 7, and the slide base 41 is made of concrete and is partially buried in the ground. The two rail bearing beams 3 are symmetrically arranged on two sides of the pier column 7, and two sliding seat foundations 41 are symmetrically arranged on two sides of the pier column 7. The base 41 is fixedly provided with two sled type saddle plates 42, and the two saddle plates 42 are horizontally arranged along the width direction of the rail beam 3. The slide seat plate 42 is welded and fixed with the metal ribs pre-embedded on the slide base 41, or other fixing modes can be selected. A cross plate 43 is provided between the two slide plates 42 on the slide base 41, and a plurality of cross plates 43 are arranged in a row along the longitudinal direction of the support rail beam 3. A guide edge 421 is vertically and fixedly arranged on the slide seat plate 42 close to the pier stud 7, and the guide edge 421 and the slide seat plate 42 are fixed into a whole by welding.

Referring to fig. 3 and 4, a connection angle steel 44 is erected between the sliding seat plates 42 arranged at both sides of the pier stud 7, the connection angle steel 44 is fixedly connected with the sliding seat plates 42 through a screw, and the two connection angle steels 44 and the two sliding seat plates 42 are arranged around the periphery of the pier stud 7. A packing plate 45 is sandwiched between the slide seat plate 42 and the slide seat base 41, and the packing plate 45 in this embodiment is made of a wood plate with high compressive strength, or a rubber pad made of butyl rubber or the like. A tightly-resisting steel plate 46 is clamped between the pier stud 7 and the slide seat plate 42 close to the pier stud 7, and the tightly-resisting steel plate 46 is arranged in an I shape and is in interference fit with a gap between the pier stud 7 and the slide seat plate 42 close to the pier stud 7.

The slide base 41 and the slide seat plate 42 provide support for the rail beam 3, so that the rail beam 3 does not contact with the earth ground when in rest, and the rail beam 3 is horizontally arranged in a stable state. The shape of the slide plate 42 makes the longitudinal movement of the rail bearing beams 3 convenient, and the guide edge 421 prevents the two rail bearing beams 3 from approaching each other, the filling plate 45 can absorb and buffer the support counter force transmitted from the rail bearing beams 3 and the vibration of the rail bearing beams 3 generated by the displacement of the box girder, and the use effect of the rail bearing beams 3 in the longitudinal movement erection construction of the box girder is good. The cross connecting plate 43 prevents the two slide seat plates 42 from relatively moving, the abutting steel plate 46 and the connecting angle steel 44 enable the slide seat mechanisms 4 arranged on the two sides of the pier stud 7 to be connected together, the position of the slide seat mechanism 4 relative to the pier stud 7 is difficult to change, and the guiding effect of the slide seat mechanism 4 on the track bearing beam 3 cannot be influenced due to the deviation of the slide seat mechanism 4.

Referring to fig. 5, the auxiliary stand 5 includes a stand foundation 51 fixed on the ground, and the stand foundation 51 is formed by casting concrete and is buried in the ground at a lower portion. The support base 51 is pre-embedded with a support steel plate 52 and a metal rib, the top surface of the support steel plate 52 is exposed and is fixedly welded with a sled-type auxiliary sliding table 53, and the auxiliary sliding table 53 is composed of a plurality of metal plate parts which are fixedly welded. The number of the auxiliary sliding tables 53 is two, and the auxiliary sliding tables are sequentially arranged along the width direction of the rail supporting beam 3, and when the rail supporting beam 3 is displaced to the auxiliary sliding tables 53, the bottom surface of the rail supporting beam 3 is abutted against the two auxiliary sliding tables 53. Reinforcing ribs 54 are erected between the auxiliary sliding tables 53, in the embodiment, the number of the reinforcing ribs 54 is two, the reinforcing ribs are sequentially arranged, or one or more reinforcing ribs can be arranged, and one side of each reinforcing rib 54, which is opposite to the auxiliary sliding table 53, is welded and fixed.

The auxiliary sliding table 53 and the sliding seat plate 42 act together to support the rail bearing beam 3 and reduce the longitudinal movement resistance of the rail bearing beam 3, so that the rail bearing beam 3 can move longitudinally conveniently. The two auxiliary sliding tables 53 are symmetrically supported, reinforcing ribs 54 prevent the auxiliary sliding tables 53 from deforming, and the support base 51 prevents the auxiliary sliding tables 53 from displacing. The auxiliary support and the sliding seat mechanism 4 guide the rail bearing beam 3 to move longitudinally together, so that the effect is good, and the arrangement is convenient.

Referring to fig. 2, in order to prevent the change of the specifications of the pier stud 7 from affecting the passage of the hoist 2 through the traction longitudinal movement of the track beam 3, the displacement system further comprises a diverting pulley 6 for limiting the traction direction of the traction wire 21. In this embodiment, the size of the pier column 7 located at one end of the longitudinal movement stroke of the rail bearing beam 3 is larger than the size of other pier columns 7, and a plurality of groups of steering pulleys 6 are arranged beside the pier column 7. In another embodiment where the pier 7 is of uniform size, the diverting pulley 6 may not be provided. The axes of the diverting pulleys 6 are vertical and arranged in an I shape, and the traction steel cable 21 is wound around the corresponding diverting pulleys 6, so that the traction direction of the traction steel cable 21 to the rail supporting beam 3 is always parallel to the longitudinal movement path of the rail supporting beam 3, and the rail supporting beam 3 is more stable in displacement.

The implementation principle of the embodiment is as follows: through slide plate 42, guide limit 421 and supplementary slip table 53 guide support rail roof beam 3 level indulge move and reduce support rail roof beam 3 and indulge the resistance that moves, through 2 rolling of hoist engine and release traction cable 21 realize support rail roof beam 3 pull indulge move, the anchor steel sheet 12 and the anchor reinforcing bar 13 of concrete system basis mound 11 and pre-buried setting effectively prevent traction force source offset, hoist engine 2 is difficult because pull the counter-force and the displacement, support rail roof beam 3 indulges and moves convenient and stable.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. The box girder indulges to move erects construction and uses support rail roof beam shift system, its characterized in that: the device comprises a traction base (1) fixedly arranged on the ground, wherein winches (2) are fixedly arranged on the traction base (1), two winches (2) are a group, two ends of a longitudinal movement stroke of a rail bearing beam (3) are respectively arranged on the two winches (2) of the same group, and traction steel cables (21) on the winches (2) are respectively fixed with the end parts of the corresponding rail bearing beams (3).

2. The rail supporting beam shifting system for box girder longitudinal shifting erection construction according to claim 1, wherein: traction base (1) is including setting firmly basic mound (11) of subaerial concrete system, pre-buried anchor steel sheet (12) on basic mound (11), the welding has set firmly anchor reinforcing bar (13) on the bottom surface of anchor steel sheet (12), anchor reinforcing bar (13) vertical extension to basic mound (11) below, hoist engine (2) and anchor steel sheet (12) welded fastening.

3. The rail supporting beam shifting system for box girder longitudinal shifting erection construction according to claim 2, wherein: the length of the part, located below the foundation pier (11), of the anchoring steel bar (13) is not less than 30 cm.

4. The rail supporting beam shifting system for box girder longitudinal shifting erection construction according to claim 1, wherein: the ground is provided with a plurality of slide mechanisms (4) and auxiliary supports (5) for guiding the displacement of the rail bearing beam (3), the slide mechanisms (4) are arranged in a one-to-one correspondence mode with the pier columns (7), and the interval region between the auxiliary supports (5) and the pier columns (7) is arranged in a one-to-one correspondence mode.

5. The rail supporting beam displacement system for longitudinally displacing box girders according to claim 4, wherein the rail supporting beam displacement system comprises: two sliding seat mechanisms (4) are symmetrically arranged beside the pier stud (7) corresponding to the rail bearing beam (3), the sliding seat mechanism (4) comprises a concrete sliding seat foundation (41) arranged beside the pier stud (7), two slide bases (41) beside the pier stud (7) are symmetrically arranged, a sled type slide seat plate (42) is fixedly arranged on the slide bases (41), the number of the slide seat plates (42) is two, the slide seat plates are arranged along the connecting line direction of the slide seat bases (41), a transverse connecting plate (43) is erected between the two slide seat plates (42) arranged on the slide seat bases (41), a guide edge (421) is vertically and fixedly arranged on the slide seat plate (42) close to the pier stud (7), a connection angle steel (44) is erected between the two slide seat plates (42) close to the pier stud (7), and a filling plate (45) made of a damping material is clamped between the slide seat plate (42) and the slide seat base (41).

6. The rail supporting beam shifting system for box girder longitudinal shifting erection construction according to claim 5, wherein: and a tightly-resisting steel plate (46) is clamped between the pier stud (7) and the slide seat plate (42) close to the pier stud (7).

7. The rail supporting beam displacement system for longitudinally displacing box girders according to claim 4, wherein the rail supporting beam displacement system comprises: auxiliary support (5) are including setting firmly subaerial concrete system support basis (51), pre-buried support steel sheet (52) that has on support basis (51), welded fastening has supplementary slip table (53) of sled type on support steel sheet (52), the quantity of supplementary slip table (53) is two and sets up along bearing rail roof beam (3) width direction in proper order, erect strengthening rib (54) between supplementary slip table (53).

8. The rail supporting beam shifting system for box girder longitudinal shifting erection construction according to claim 1, wherein: the traction mechanism is characterized by further comprising a diverting pulley (6) used for limiting the traction direction of the traction steel cable (21), wherein the diverting pulley (6) is arranged beside the pier column (7) close to the winch (2), and the traction steel cable (21) is wound around the corresponding diverting pulley (6).

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