CN212956120U

CN212956120U - Arched girder combined type continuous rigid frame bridge lower chord girder construction hanging basket

Info

Publication number: CN212956120U
Application number: CN202020938312.8U
Authority: CN
Inventors: 杨培诚; 石晓飞; 周学勇; 李亚勇; 张锋; 王蓬
Original assignee: China Construction Tunnel Construction Co Ltd
Current assignee: China Construction Tunnel Construction Co Ltd
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2021-04-13
Anticipated expiration: 2030-05-28

Abstract

The utility model relates to a basket is hung in continuous rigid frame bridge lower chord member construction of arched girder combination formula. The two hanging legs of the hanging basket are oppositely arranged at the two transverse sides of the hanging basket body, and the bottom of each hanging leg is fixedly connected to the middle part of the transverse side edge of the hanging basket body; the two walking units are transversely and relatively fixedly arranged on the top surface of the poured lower chord beam, and the output ends of the two walking units are respectively and fixedly connected with the tops of the two hanging legs; the two jacking oil cylinders are transversely and oppositely arranged on the cradle body, and the output parts of the jacking oil cylinders are operably abutted against the bottom of the poured lower chord beam; the two thrust units are arranged on the cradle body in a transverse direction and opposite to each other, and the two thrust units are operatively separated from the bottom of the poured lower chord beam. The utility model discloses can effectively utilize the construction space of lower chord member step down, also can avoid because of the upper chord member does not have sufficient bearing capacity, the fracture and the downwarping problem that cause have fine popularization space.

Description

Arched girder combined type continuous rigid frame bridge lower chord girder construction hanging basket

Technical Field

The utility model belongs to the technical field of the bridge construction, especially, relate to a basket is hung in construction of continuous rigid frame bridge lower chord member of arched girder combination formula.

Background

The prestressed concrete continuous rigid frame bridge has the advantages of large spanning capacity, reasonable stress, smooth driving, construction guarantee, low maintenance cost and the like, and has strong adaptability to mountain areas with high and steep slopes and narrow construction sites. The main span of the continuous rigid frame bridge constructed in China exceeds 200m and is not less than 50, so that the continuous rigid frame bridge becomes the main bridge type of the large and middle span girder bridge in China.

The arched girder combined type continuous rigid frame bridge is a new modification on the conventional continuous rigid frame bridge, and the main idea is to hollow out a web plate at the root of a box girder to form an arched girder combined frame consisting of an upper chord box girder section and a lower chord arched box girder section. The arched beam combined frame and the solid web beam section form an upper structure of the arched beam combined type continuous rigid frame bridge. The arched beam combined continuous rigid frame bridge fully exerts the advantage of strong concrete bearing capacity of the lower chord arched beam section of the arched beam combined frame, reduces the effective span of the structure, and optimizes the stress state of the structure, thereby improving the spanning capacity.

In the prior art, most of hanging baskets used for constructing the lower chord beam of the arched beam combined type continuous rigid frame bridge are hung on the upper chord beam, but for the long-span continuous rigid frame bridge, the length of the lower chord beam is longer, the included angle between the lower chord beam and the upper chord beam is smaller, the construction scheme that the hanging baskets are hung on the upper chord beam does not have enough construction space, and the upper chord beam does not have enough bearing capacity, so that the problems of cracking and downwarping are easily caused, and therefore the prior art needs to be improved.

SUMMERY OF THE UTILITY MODEL

To the problem that above-mentioned prior art exists, the utility model provides a basket is hung in continuous rigid frame bridge lower chord member construction of arched girder combination formula.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

the utility model provides a basket is hung in continuous rigid frame bridge lower chord member construction of arched girder combination formula, hang the basket and include:

a hanging basket body;

the two hanging legs are oppositely arranged at the two transverse sides of the hanging basket body, and the bottom of each hanging leg is fixedly connected to the middle of the transverse side edge of the hanging basket body;

the two walking units are transversely and relatively fixedly arranged on the top surface of the poured lower chord beam, and the output ends of the two walking units are respectively and fixedly connected with the tops of the two hanging legs;

the two jacking oil cylinders are transversely and oppositely arranged on the cradle body, and the output parts of the jacking oil cylinders can operatively abut against the bottom of the poured lower chord beam;

the two thrust units are arranged on the cradle body in a transverse opposite mode and are operably separated from the bottom of the poured lower chord beam.

Further, the hanging basket body includes:

the two main longitudinal beams are oppositely arranged along the transverse direction, the bottoms of the two hanging legs are respectively fixedly arranged in the middle of the tops of the two main longitudinal beams, the two main longitudinal beams are connected through a plurality of connecting cross beams, a plurality of supporting beams are further arranged on the two main longitudinal beams, and the supporting beams are positioned on the upper sides of the two hanging legs;

the truss structure is arranged transversely and oppositely, the truss structure and the main longitudinal beam are arranged correspondingly, the truss structure is fixedly arranged at the bottom of the corresponding main longitudinal beam, and the bottoms of the truss structures are connected through a plurality of connecting beams.

Further, the walking unit includes:

the two rows of the traveling rails are oppositely arranged and are fixedly arranged at the top of the lower chord beam;

the device comprises a counter-force seat, a walking trolley and hydraulic oil cylinders, wherein the counter-force seat, the walking trolley, the hydraulic oil cylinders and the walking rails are correspondingly arranged, the counter-force seat and the walking trolley are arranged on the corresponding walking rails at intervals, the counter-force seat is detachably arranged on the corresponding walking rails, the walking trolley is movably arranged on the corresponding walking rails, one end of each hydraulic oil cylinder is rotatably connected with the corresponding counter-force seat, the other end of each hydraulic oil cylinder is rotatably connected with the corresponding walking trolley, and the two walking trolleys on the walking rails are respectively rotatably connected with the tops of the hanging legs.

Furthermore, a plurality of anchoring beams are arranged on each walking track at intervals along the length direction of the walking track, each anchoring beam is perpendicular to the walking track and is connected with the lower chord beam through two first finish-rolled deformed steel bars, the two first finish-rolled deformed steel bars are oppositely arranged on two sides of the corresponding walking track, the upper ends of the two first finish-rolled deformed steel bars respectively penetrate through two ends of each anchoring beam and are locked through bolts, and the lower ends of the two first finish-rolled deformed steel bars respectively penetrate through the lower chord beam and are locked through bolts.

Further, the thrust unit includes:

the connecting seats are pre-arranged on the bottom of the lower chord beam at intervals;

the connecting piece is provided with a first end and a second end which are opposite, and the first end of the connecting piece is rotatably connected with the connecting seat;

the extensible member, the extensible member includes mounting, telescopic machanism, thrust rod and first pivot, the mounting has relative first end and second end, the first end of mounting with the second end fixed connection of connecting piece, telescopic machanism has stiff end and flexible end, telescopic machanism's fixed end is fixed to be set up in the mounting, telescopic machanism's flexible end can to the other end of mounting is flexible, the thrust rod has relative first end and second end, the first end of thrust rod is located in the mounting, the second end activity of thrust rod is passed the second end of mounting, thrust rod maneuverability locks the second end of mounting, first pivot sets up the second end of thrust rod, first pivot is rotationally connected on main longeron.

Further, the shaft of the thrust rod is provided with threads;

the thrust unit further comprises a fastening assembly comprising a fastening ring and a locking nut, wherein:

the fastening ring is fixedly arranged at the second end of the fixing piece, the thrust rod can movably penetrate through the fastening ring, and a spigot is arranged on the inner wall of one end, far away from the fastening assembly, of the fastening ring;

the locking nut is sleeved on the thrust rod in a threaded mode, the locking nut is arranged on the outer side of the fastening ring, an annular protrusion is arranged at one end, facing the fastening ring, of the locking nut, and the annular protrusion can be arranged in the spigot in a threaded mode.

Still further, the fastening assembly further includes a plurality of fastening screws provided on the fastening ring at intervals in a circumferential direction of the fastening ring, and heads of the plurality of fastening screws are operable to penetrate the fastening ring and abut against a circumferential surface of the thrust rod.

Further, the cradle further comprises guide trolleys, each main longitudinal beam is provided with one guide trolley, each guide trolley comprises a fixed seat and a guide seat, the fixed seats are fixedly arranged on the corresponding main longitudinal beams, the guide seats are rotatably connected with the fixed seats, and the guide seats are slidably arranged on the bottoms of the lower chord beams.

Furthermore, the guide trolley further comprises a connecting rod, the length of the connecting rod is adjustable, and two ends of the connecting rod are respectively and rotatably connected with the corresponding fixing seat and the main longitudinal beam.

The utility model has the advantages that:

the utility model discloses a basket is hung in construction of continuous rigid frame bridge lower chord beam of arched girder combination formula, because two among them hang the leg and set up relatively in the horizontal both sides of hanging the basket body, the bottom fixed connection of every string leg is on the middle part of hanging the horizontal side of basket body, and the output of two walking units respectively with the top fixed connection of two string legs, promptly the utility model discloses the basket that hangs of the pouring work of each festival section that will accomplish the lower chord beam hangs on the lower chord beam to control hangs the basket and walks on the lower chord beam, can accomplish the pouring work of each festival section of lower chord beam in proper order, can effectively utilize the construction space of lower chord beam next step like this, also can avoid because of the upper chord beam does not have sufficient bearing capacity, the fracture and the downwarping problem that cause have fine popularization space.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic flow chart of a construction method for a lower chord beam of an arched beam combined type continuous rigid frame bridge provided by an embodiment of the present invention;

fig. 2 is a schematic view of the construction of the lower chord beam in the embodiment of the present invention;

FIG. 3 is a schematic structural view of the basket body in FIG. 2;

FIG. 4 is a schematic sectional view taken along line A-A of FIG. 3;

FIG. 5 is a schematic structural diagram of the walking unit in FIG. 2;

FIG. 6 is a schematic structural view of the walking rail of FIG. 5 on a lower chord beam;

FIG. 7 is a schematic view of the reaction force seat of FIG. 5;

FIG. 8 is a schematic structural view of the walking trolley in FIG. 5;

FIG. 9 is a schematic structural view of the thrust unit of FIG. 2;

FIG. 10 is a schematic view of the connecting socket shown in FIG. 9;

FIG. 11 is a schematic cross-sectional view of FIG. 10;

fig. 12 is a schematic structural view of the guide carriage in fig. 2.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Fig. 1 is a schematic flow chart of a construction method for a lower chord beam of an arched beam combined type continuous rigid frame bridge provided by an embodiment of the utility model, and with reference to fig. 1, the construction method includes:

hanging the cradle on the lower chord beam;

and controlling the hanging basket to walk on the lower chord beam to finish the pouring work of each section of the lower chord beam in sequence.

The embodiment of the utility model provides a shown arched girder combination formula is string roof beam construction method under continuous rigid frame bridge owing to hang the basket of the pouring work of each festival section that will accomplish the lower chord roof beam on the lower chord roof beam, and control is hung the basket and is walked on the lower chord roof beam, can accomplish the pouring work of each festival section of lower chord roof beam in proper order, can effectively utilize the construction space of lower chord roof beam next step like this, also can avoid because of the upper chord roof beam does not have sufficient bearing capacity, the fracture and the downwarping problem that cause, fine popularization space has.

Fig. 2 is the utility model discloses the shown lower chord roof beam construction schematic diagram of embodiment combines fig. 2, the utility model provides an in hang the basket including hanging basket body an, hanging leg b, walking unit c, jacking cylinder d and thrust unit e.

With reference to fig. 2, in the embodiment of the present invention, two hanging legs b, two walking units c, two jacking cylinders d and two thrust units e are provided, the two hanging legs b are relatively disposed on two lateral sides of the hanging basket body a, the bottom of each hanging leg b is fixedly connected to the middle of the lateral side of the hanging basket body a, the two walking units c are relatively and fixedly disposed on the top surface of the poured lower chord beam 1 along the lateral direction, and the output ends of the two walking units c are respectively and fixedly connected to the tops of the two hanging legs b; the two jacking oil cylinders d are transversely and oppositely arranged on the cradle body a, and the output parts of the jacking oil cylinders d can operatively abut against the bottom of the poured lower chord beam 1; two thrust units e are arranged on the cradle body a along the transverse direction, and the two thrust units e are separated from the bottom of the poured lower chord beam 1 in an operable mode.

Walk on the lower chord beam through controlling above-mentioned string basket, specifically include:

separating the thrust unit e from the bottom of the lower chord beam 1;

starting the traveling unit c, and driving the hanging basket body a to move to a preset position by the traveling unit c;

the walking unit c stops working, the output end of the jacking oil cylinder d extends to abut against the bottom of the lower chord beam 1, and the angle of the cradle body a is adjusted to adapt to the bottom gradient of the lower chord beam 1;

operating the thrust unit e to enable the thrust unit e to be connected with the bottom of the lower chord beam so as to lock the movement of the cradle body a;

and temporarily connecting the hanging basket body a with the lower chord beam 1 to perform pouring work of each section of the lower chord beam.

The embodiment of the utility model provides an in, the pouring work of each festival section of lower chord member is similar with the basket construction method that hangs that the utilization hangs on last chord member, does not have the design essential, the embodiment of the utility model provides a no longer describe to this.

Fig. 3 is the structure schematic diagram of the basket body in fig. 2, fig. 4 is a section schematic diagram of a-a in fig. 3, combine fig. 2, fig. 3 and fig. 4, in the embodiment of the present invention, a basket body a includes a main longitudinal beam 5 and a truss structure 2, wherein, two main longitudinal beams 5 are arranged along the transverse direction, the bottoms of two hanging legs b are respectively and fixedly arranged at the middle part of the tops of two main longitudinal beams 5, the two main longitudinal beams 5 are connected through a plurality of connection beams 3, a plurality of supporting beams 4 are further arranged on the two main longitudinal beams 5, the plurality of supporting beams 4 are located at the upper sides of the two hanging legs b, and the plurality of supporting beams 4 are used for supporting the template system for casting each section of the bottom chord beam.

Further, combine fig. 2-4, the embodiment of the utility model provides an embodiment's truss structure 2 is provided with two, and two truss structures 2 are along horizontal relative setting, and truss structure 2 and main longitudinal beam 5 correspond the setting, and truss structure 2 is fixed to be set up in the bottom of the main longitudinal beam 5 that corresponds, connects through a plurality of tie-beams between two truss structure 2's the bottom to make string basket body a form an integral structure.

The embodiment of the utility model provides an in, each component that constitutes string basket body a can select for use welded form to connect into whole, the embodiment of the utility model provides a do not do the restriction to this.

Further, with reference to fig. 3, in the embodiment of the present invention, the hanging legs b and the main longitudinal beams 5 on the same side can be connected by the reinforcing beam 6 to reinforce the connection therebetween.

Fig. 5 is a schematic structural diagram of the traveling unit in fig. 2, and with reference to fig. 2 and fig. 5, the traveling unit of the embodiment of the present invention includes a traveling rail 7, a reaction seat 8, a traveling carriage 9, and a hydraulic cylinder 10.

With reference to fig. 2, the embodiment of the present invention provides two rows of the traveling rails 7, and two rows of the traveling rails 7 are fixed on the top of the lower beam 1.

Combine fig. 2 and fig. 5, in the embodiment of the utility model, counter-force seat 8, walking dolly 9 and hydraulic cylinder 10 and walking track 7 correspond the setting, counter-force seat 8 sets up on the walking track 7 that corresponds with walking dolly 9 interval, counter-force seat 8 detachably sets up on the walking track 7 that corresponds, the movably setting of walking dolly 9 is on the walking track 7 that corresponds, hydraulic cylinder 10's one end and the 8 rotatable coupling of counter-force seat that corresponds, hydraulic cylinder 10's the other end and the 9 rotatable coupling of walking dolly that corresponds, walking dolly 9 on two walking tracks 7 is connected with the both sides of lower chord hanging basket 6.

The embodiment of the utility model discloses a walking unit, when implementing, earlier with two top that the walking track relatively fixed set up at the lower chord roof beam of walking to with the fixed setting of counter-force seat on the walking track that corresponds, hydraulic cylinder work, the drive walking dolly moves on the walking track, and then drives the walking of hanging the basket with the lower chord that the walking dolly is connected, simple structure, convenient operation, degree of mechanization is high, can satisfy the site operation requirement, has fine practicality.

Fig. 6 is the structural schematic diagram of the walking track in fig. 5 on the lower chord girder, combine fig. 5 and fig. 6, in the embodiment of the utility model, every walking track 7 is gone up and is provided with a plurality of anchor roof beams 11 along its length direction equal interval, every anchor roof beam 11 all arranges with walking track 7 is perpendicular, every anchor roof beam 7 all connects with lower chord girder 1 through two first finish rolling deformed bar 12, two first finish rolling deformed bar 12 set up in the both sides of the walking track 7 that corresponds relatively, the both ends of anchor roof beam 11 are passed respectively to the upper end of two first finish rolling deformed bar 12, and through bolt locking, the lower extreme of two first finish rolling deformed bar 12 passes lower chord girder 1 respectively, and through bolt locking, just so can just can be with walking track 7 stable fixing on lower chord girder 1 through a plurality of anchor roof beams 11.

The embodiment of the utility model provides an in, the form of I-steel can be chooseed for use to the anchor roof beam, certainly, it also can be the steel of other models, the embodiment of the utility model provides a do not do the restriction to this.

The embodiment of the utility model provides an in, walking track 7 can be the I-steel, and it includes roof, bottom plate and connecting plate, and roof and bottom plate set up relatively, and the middle part of roof and the middle part of bottom plate are passed through the connecting plate and are connected, and the connecting plate is provided with a plurality of first connecting holes along walking track 7's length direction interval, and the bottom plate setting is on lower chord member 1, and the two plane contact makes walking track 7 have fine stability on lower chord member 1.

Fig. 7 is the structure schematic diagram of the counter-force seat in fig. 5, combine fig. 5 and fig. 7, in the embodiment of the utility model, every counter-force seat 8 all includes basic frame 8.1, first grip block 8.2, first locking bolt and first connection otic placode 8.3, wherein, basic frame 8.1 is squarely, basic frame 8.1's bottom is provided with the opening, walking track 7's connecting plate clearance sets up in the opening, walking track 7's roof clearance sets up in basic frame 8.1, when installing the counter-force seat, can slide basic frame 8.1 to the position that needs the installation from walking track 7's tip, and convenient and fast, and basic frame 8.1 can inlay and establish on walking track 7, also has fine stability.

Further, in the embodiment of the present invention, two first clamping plates 8.2 are respectively and relatively fixed at the lower side of the bottom of the base frame 8.1, the two first clamping plates 8.2 are respectively located at two sides of the walking track 7, each first clamping plate 8.2 is provided with a plurality of second connecting holes at intervals, and the distance between two adjacent second connecting holes is consistent with the distance between two adjacent first connecting holes; and the first locking bolt passes through the first connecting hole and two opposite second connecting holes, and then two first clamping plates 8.2 are fixedly connected with the connecting plate of the walking track 7, so that the fixed installation of the counter-force seat 8 on the walking track 7 is realized.

The embodiment of the utility model provides an in, owing to install counter-force seat 8 on walking track 7 through the bolt, after hanging basket body an walking and targetting in place, and when walking once more, can demolish counter-force seat 8 and the first locking bolt of walking track 7 connection, make counter-force seat 8 and walking track 7 form sliding connection, hydraulic cylinder 10's output returns and contracts, and then drive the removal of counter-force seat 8 on walking track 7, counter-force seat 8 removes the back of targetting in place, again with counter-force seat 8 and walking track 7 fixed connection, can hang the walking of basket body a's next segment section.

Further, the embodiment of the utility model provides an in, two first connection otic placodes 8.3 relatively fixed are at the top of basic frame 8.1, and hydraulic cylinder 10's one end is through the round pin hub connection between two first connection otic placodes 8.3 to realize hydraulic cylinder 10's one end and the rotatable coupling of counter-force seat 8.

Still furthermore, in the embodiment of the utility model, every counter-force seat 8 all still includes first reinforcing plate 8.4, the equal interval in both sides of every basic frame 8.1 is provided with a plurality of first reinforcing plates 8.4, the middle part of every first reinforcing plate 8.4 is provided with the recess, basic frame's lateral part is inlayed and is established in the recess at the middle part of every first reinforcing plate 8.4, the fixed outside that sets up at the first connection otic placode 8.3 of homonymy of upside of every first reinforcing plate 8.4, the fixed outside that sets up at the first grip block 8.2 of homonymy of downside of every first reinforcing plate 8.4, can strengthen the intensity of counter-force seat 8 like this.

The embodiment of the utility model provides an in, basic frame 8.1, first grip block 8.2, first connection otic placode 8.3 and first reinforcing plate 8.4 can adopt welded mode assembly together, of course, it also can the integrated into one piece, the embodiment of the utility model provides a do not limit to this.

Fig. 8 is the structural schematic diagram of the walking dolly in fig. 5, combine fig. 5 and fig. 8, in the embodiment of the present invention, the walking dolly 9 includes car body 9.1, second grip block 9.2 and second connection otic placode 9.3, wherein, the car body 9.1 is movably arranged on the walking track 7 that corresponds, two second grip blocks 9.2 are respectively relatively fixed and arranged at the bottom downside of car body 9.1, and two second grip blocks 9.2 are respectively slid and arranged at the both sides of walking track 7. When the hydraulic oil cylinder 10 pushes the traveling trolley 9 to travel on the traveling rail 7, the two second clamping plates 9.2 can guide the traveling trolley 9 to move.

The embodiment of the utility model provides an in, the bottom of automobile body 9.1 can be along walking track 7's length direction has set gradually a plurality of gyro wheels 9.4, and gyro wheel 9.4's center pin sets up along walking track 7's width direction, and a plurality of gyro wheels 9.4 roll and set up on corresponding walking track 7, can make automobile body 9.1 roll like this and set up on corresponding walking track 7, improves the smooth and easy nature of walking dolly 9 operation on walking track 7.

Further, in the embodiment of the utility model, two second connection otic placodes 9.3 relatively fixed are at the top of automobile body 9.1, and hydraulic cylinder 10's the other end is through the round pin hub connection between two second connection otic placodes 9.3 to realize hydraulic cylinder 10 with walking dolly 9's connection.

Additionally, the embodiment of the utility model provides an in, hydraulic cylinder 10's the other end is connected between two second connection otic placodes 9.3's one end, and two second connection otic placodes 9.3's the other end is connected through round pin axle and the top of hanging leg b to realize walking dolly 9 with hanging basket body a's being connected.

Still further, in the embodiment of the utility model, equal symmetry is provided with the third connecting hole on two second grip blocks 9.1, second connecting bolt can pass third connecting hole and first connecting hole, so as to with two second grip blocks 9.1 and walking track 7's connecting plate 7.3 fixed connection, when the lower chord member 1 need walk to next stroke, can fix walking dolly 9 on walking track 7 like this, and demolish the first connecting bolt that counter-force seat 8 is connected with walking track 7, hydraulic cylinder retrieves, can stimulate counter-force seat 8 and move on the walking track 7 that corresponds, remove the back that targets in place, can carry out the removal of lower chord member 5 next stroke.

The embodiment of the utility model provides an in, automobile body 9.1, second grip block 9.2 and second connection otic placode 9.3 can adopt welded mode assembly together, of course, it also can whole shaping, the embodiment of the utility model provides a do not limit to this.

Fig. 9 is a schematic structural view of the thrust unit in fig. 2, and with reference to fig. 9, the thrust unit of the embodiment of the present invention mainly includes a connecting seat, a connecting member, and an expansion member.

Combine fig. 2 and fig. 9, the utility model discloses the connecting seat is used for fixing in the bottom of lower chord member 1, and it includes connecting plate 11 and a plurality of second finish rolling screw-thread steel 12, and the laminating of connecting plate 11 is in the bottom of lower chord member 1, and a plurality of second finish rolling screw-thread steel 12 all pass connecting plate 11, and a plurality of finish rolling screw-thread steel 12 all are provided with first lock nut 13 and second lock nut 14, and first lock nut 13 and second lock nut 14 on every second finish rolling screw-thread steel 12 are located the both sides of connecting plate 11 respectively.

During specific implementation, with reference to fig. 2 and 9, each connecting plate 11 may be correspondingly provided with four second finish-rolled deformed bars 12, the lower chord beam 1 is provided with a prepared hole corresponding to the second finish-rolled deformed bar 12, the second finish-rolled deformed bar 12 passes through the corresponding prepared hole, the first locking nut 13 is fixed at the top of the lower chord beam 1, and the second locking nut 4 is located at the bottom of the connecting plate 11, so that the fixing of the connecting seat at the bottom of the lower chord beam 1 can be realized.

Further, combine fig. 2 and fig. 9, the embodiment of the utility model provides an in the top of connecting plate 11 be provided with reference column 15, lower chord 1 reservation have with reference column 15 complex locating hole, when fixing the connecting seat on lower chord 1, can set up reference column 15 in the locating hole to carry out the initial positioning to the connecting seat, in order to make things convenient for the follow-up operation of connecting seat to fix.

The utility model discloses the connecting piece has relative first end and second end, the first end and the connecting seat rotatable coupling of connecting piece.

Specifically, with reference to fig. 2 and fig. 9, in the embodiment of the present invention, one side of the connecting plate 11 (specifically, one side of the bottom of the connecting plate 11) is provided with two opposite supporting plates 16, and the first end of the connecting member is located between the two supporting plates 16, and the first end of the connecting member is rotatably connected between the two supporting plates 16 through the second rotating shaft 17, so as to realize the rotatable connection between the first end of the connecting member and the connecting seat.

The embodiment of the utility model provides an in, the connecting piece can be the box structure, of course, it also can be shaft-like or tube-shape isotructure, the embodiment of the utility model provides a do not limit to this.

Fig. 10 is a schematic structural view of the connection seat in fig. 9 with the connection seat removed, and fig. 11 is a schematic sectional structural view of fig. 10. With reference to fig. 9, 10 and 11, the telescopic member of the embodiment of the present invention includes a fixing member 18, a telescopic mechanism 19, a thrust rod 20 and a first rotating shaft 21, wherein, the fixing member 18 of the embodiment of the present invention has a first end and a second end opposite to each other, the first end of the fixing member 18 is fixedly connected to the second end of the connecting member, specifically, the second end of the connecting member is provided with a first butt plate 22, the first end of the fixing member 18 is provided with a second butt plate 23, and the first butt plate 22 and the second butt plate 23 can be detachably connected by a plurality of screws, so as to facilitate assembly and maintenance of the other components.

In the embodiment of the present invention, the fixing member 18 may be a box-shaped structure, and of course, it may also be a rod-shaped or tubular structure, and the embodiment of the present invention does not limit this.

With reference to fig. 9, fig. 10 and fig. 11, the utility model discloses telescopic machanism 19 of embodiment can choose for use telescopic cylinder, it has stiff end and flexible end, telescopic machanism 19's fixed end is fixed to be set up in the mounting, it specifically arrives the utility model discloses in the embodiment for welded fastening sets up on second butt plate 23, telescopic machanism 19's flexible end can stretch out and draw back to the other end of mounting, thrust rod 20 has relative first end and second end, thrust rod 20's first end is located the mounting, under telescopic machanism 19's promotion, thrust rod 20's second end is mobile to pass the second end of mounting, and thrust rod 20 maneuverability locks the second end at the mounting, first pivot 21 sets up the second end at thrust rod 20, first pivot 21 rotationally connects on the main longitudinal beam.

In addition, with reference to fig. 10 and 11, the thrust rod 20 of the embodiment of the present invention has a screw thread on the rod body, and the thrust unit further includes a fastening component, the fastening component includes a fastening ring 24 and a locking nut 25, wherein the fastening ring 24 can be fixedly disposed on the second end of the fixing component by welding or integral molding, the thrust rod 20 can movably pass through the fastening ring 24, the inner wall of the end of the fastening ring 24 away from the fastening component is provided with a spigot 26, the locking nut 25 is threadedly mounted on the thrust rod 20, the locking nut 25 is disposed on the outer side of the fastening ring 24, one end of the locking nut 25 facing the fastening ring 24 is provided with an annular protrusion 27, the annular protrusion 27 is operatively threadedly disposed in the spigot 26, when the thrust rod 20 needs to be locked, the locking nut 25 can be rotated to enable the annular protrusion 27 to be threadedly locked in the spigot 26, locking of the thrust rod 20 is achieved.

With reference to fig. 10 and 11, in order to improve the locking effect of the thrust rod 20, the fastening assembly of the embodiment of the present invention further includes a plurality of fastening screws 28, the fastening screws 28 are disposed on the fastening ring 24 along the circumferential interval of the fastening ring 24, the heads of the fastening screws 28 can operatively pass through the fastening ring 24 and abut against the circumferential surface of the thrust rod 20, when the thrust rod 20 needs to be locked, the fastening screws 28 can abut against the circumferential surface of the thrust rod 20, and the locking effect of the thrust rod 20 can be further improved.

With reference to fig. 9 and 11, the second end of the thrust rod 20 of the embodiment of the present invention is connected to the flat portion 29, the first rotating shaft 21 is disposed on the flat portion 29 of the thrust rod 20, and the flat portion 29 can meet the use requirement of a narrow space.

The embodiment of the utility model provides an in the thrust unit, when implementing, its connecting seat is installed in the bottom chord girder, the second end of thrust rod is through first pivot and the top rotatable coupling of basket is hung to last quarter inverted triangle, and, the thrust unit is provided with two rows relatively, when hanging the basket body and need walking, the synchronous extension of the flexible end of each thrust unit telescopic machanism, and the top is served at the first of thrust rod, drive thrust rod removes to the direction that deviates from the connecting seat, and then the walking of the relative bottom chord girder of drive string basket body, hang the basket body walking back that targets in place, hold the second of mounting with thrust rod locking, the fixing of hanging the basket body has been accomplished promptly, in order to be under construction on hanging the basket body, thereby can realize the walking and the fixed function of hanging the basket body, in order to make things convenient for the construction of hanging the roof beam, and have fine practicality.

With reference to fig. 2, the utility model discloses hang basket still includes guide trolley f, all is provided with a guide trolley f on every main longitudinal girder 5.

Fig. 12 is a schematic structural diagram of the guiding trolley in fig. 2, with reference to fig. 2 and fig. 12, in an embodiment of the present invention, each guiding trolley f includes a fixing seat 30 and a guiding seat 31, the fixing seat 30 is fixedly disposed on the corresponding main longitudinal beam 5, the guiding seat 31 is rotatably connected to the fixing seat 30, and the guiding seat 31 is slidably disposed on the bottom of the bottom chord 1. When hanging basket body a walks relative to lower chord 1, guide holder 31 can provide the guide effect, makes hanging basket body a walk according to predetermineeing the direction.

Referring to fig. 12, in the embodiment of the present invention, the bottom of the fixing base 30 can be connected to the corresponding main longitudinal beam 5 by four screws 32 disposed in a square shape, and the height of the fixing base 30 can be adjusted by adjusting the length of the screws 32, so that the guiding trolley f can adapt to the space between the cradle body a and the bottom of the bottom chord beam 1.

Referring to fig. 12, the guiding trolley f according to the embodiment of the present invention further includes a connecting rod 33, the length of the connecting rod 33 is adjustable, and two ends of the connecting rod 33 are respectively rotatably connected to the corresponding fixing base 30 and the main longitudinal beam 5. The purpose of setting up connecting rod 33 lies in can strengthening fixing base 30 and main longitudinal beam 5's connection, simultaneously, also can adapt to hang the space between basket body a and the lower chord beam 1 bottom to provide the primary importance to the initial installations of direction dolly f.

With reference to fig. 12, in the embodiment of the present invention, the connecting rod 33 may include two sleeves and a rod, the two sleeves are respectively rotatably connected to the fixing base 30 and the main longitudinal beam 5, opposite threads are provided at two ends of the rod, the two sleeves are respectively connected to two ends of the rod by threads, so that the length of the connecting rod 33 can be adjusted by rotating the rod, and the connecting rod has a function of self-locking of threads, which is convenient and reliable.

Referring to fig. 12, in the embodiment of the present invention, the top of the guide seat 31 may be provided with a rotatable roller 34, so that the guide seat 31 is slidably connected to the bottom of the lower chord 1 to improve the smoothness of the guide seat 31 when the bottom of the lower chord 1 slides.

The embodiment of the utility model provides an in, can adopt the mode of anchor will hang basket body an and lower chord beam 1 temporary connection to carry out the pouring work of each festival section of lower chord beam.

The following embodiments are preferred embodiments of the present invention, which are only used to facilitate the description of the present invention, and are not intended to limit the present invention in any form, and any person who knows commonly in the art can use the present invention to make local changes or modifications within the scope of the technical features of the present invention, and the technical features of the present invention are not separated from the present invention.

Claims

1. The utility model provides a basket is hung in construction of continuous rigid frame bridge lower chord member of arched girder combination formula which characterized in that, it includes to hang the basket:

a hanging basket body;

2. The arched girder combined type continuous rigid frame bridge lower chord beam construction hanging basket as claimed in claim 1, wherein the hanging basket body comprises:

3. The arched girder combined type continuous rigid frame bridge lower chord girder construction hanging basket is characterized in that the walking unit comprises:

4. The arched girder combined type continuous rigid frame bridge lower chord girder construction hanging basket according to claim 3, wherein a plurality of anchoring girders are arranged on each walking rail at intervals along the length direction of the walking rail, each anchoring girder is arranged perpendicular to the walking rail, each anchoring girder is connected with the lower chord girder through two first finish-rolled deformed steel bars, the two first finish-rolled deformed steel bars are oppositely arranged on two sides of the corresponding walking rail, the upper ends of the two first finish-rolled deformed steel bars respectively penetrate through two ends of the anchoring girder and are locked through bolts, and the lower ends of the two first finish-rolled deformed steel bars respectively penetrate through the lower chord girder and are locked through bolts.

5. The arched girder combined type continuous rigid frame bridge lower chord girder construction hanging basket is characterized in that the thrust unit comprises:

6. The arched girder combined type continuous rigid frame bridge lower chord construction hanging basket is characterized in that the shaft of the thrust rod is provided with threads;

7. The arched girder composite continuous rigid frame bridge lower chord construction basket according to claim 6, wherein the fastening assembly further comprises a plurality of fastening screws, the plurality of fastening screws are arranged on the fastening ring at intervals along the circumferential direction of the fastening ring, and the heads of the plurality of fastening screws are operable to penetrate through the fastening ring and abut against the circumferential surface of the thrust rod.

8. The cradle for constructing the lower chord beam of the arched beam combined type continuous rigid frame bridge according to any one of claims 2-7, wherein the cradle further comprises a guide trolley, one guide trolley is arranged on each main longitudinal beam, each guide trolley comprises a fixed seat and a guide seat, the fixed seats are fixedly arranged on the corresponding main longitudinal beams, the guide seats are rotatably connected with the fixed seats, and the guide seats are slidably arranged on the bottom of the lower chord beam.

9. The arched girder combined type continuous rigid frame bridge lower chord beam construction hanging basket according to claim 8, wherein the guide trolley further comprises a connecting rod, the length of the connecting rod is adjustable, and two ends of the connecting rod are rotatably connected with the corresponding fixing seats and the main longitudinal girder respectively.