CN210658011U - Steel truss arch bridge installation system - Google Patents
Steel truss arch bridge installation system Download PDFInfo
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- CN210658011U CN210658011U CN201920623268.9U CN201920623268U CN210658011U CN 210658011 U CN210658011 U CN 210658011U CN 201920623268 U CN201920623268 U CN 201920623268U CN 210658011 U CN210658011 U CN 210658011U
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Abstract
The utility model relates to a steel truss arch bridge installation system, which comprises a steel truss assembling jig frame, a steel truss underwater installation support, a steel truss installation and attachment type construction platform and a steel truss arch bridge cantilever hanger construction platform; the steel truss assembling jig frame comprises a connecting groove, a connecting steel sheet, a jig frame steel plate, jig frame supporting legs and a supporting leg lifting adjusting device; the steel truss underwater mounting support comprises a top adjusting device, a steel pipe connecting device and a steel pipe pile; the steel truss installation and attachment type construction platform comprises a hanging basket, an upper roller, a lower roller, an upper panel, a lower panel and a steel beam splice plate; the steel truss arch bridge cantilever arm hanging rack construction platform comprises a hanging rack rail, universal idler wheels, a bottom plate and a rail clamping device. The utility model has the advantages that: the utility model discloses the steel truss spelling bed-jig that sets up can overcome and assemble the problem of place unevenness in advance, and the base is firm not to slide, can assemble the bed-jig of corresponding size in order to supply the quick try on of steel truss component according to assembling unit size fast in advance.
Description
Technical Field
The utility model relates to a steel truss arched bridge especially relates to a steel truss arched bridge installation system.
Background
With the high-speed development of urban construction and the improvement of bridge construction technology in China, the steel truss is more and more widely applied to bridge construction. Most components of the steel truss arch bridge are prefabricated, a plurality of bridge components are preassembled and hoisted during construction, and the steel structure main body is usually fixed by using welding, bolts, rivets and other connection modes during construction. Constructors need to carry out aerial work at the joints in the process of connecting and installing, templates and support platforms of a traditional installing system are complex, a great deal of inconvenience is brought to the operation of the constructors generally, and the work efficiency is difficult to improve.
In summary, it is very important to find a steel truss arch bridge installation system which is simple and convenient to construct and can safely and effectively improve the construction efficiency and quality.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough among the prior art, provide a steel truss arch bridge installation system.
The steel truss arch bridge installation system comprises a steel truss assembling jig frame, a steel truss underwater installation support, a steel truss installation and attachment type construction platform and a steel truss arch bridge cantilever arm hanging frame construction platform;
the steel truss assembling jig comprises a connecting groove, a connecting steel sheet, I-shaped steel, a ground sample line, a first bolt hole group, jig steel plates, a first bolt, a second bolt, jig support legs and a support leg lifting adjusting device, wherein the connecting groove and the connecting steel sheet are respectively arranged on opposite sides of each jig steel plate, and the connecting groove and the connecting steel sheet are respectively provided with a bolt hole and connected through the second bolt; four corners of the bottom of the jig frame steel plate are provided with jig frame supporting legs, and lifting adjusting devices are arranged on the jig frame supporting legs; drawing ground sample lines of the pre-assembled units on the steel plate of the jig frame, and arranging I-shaped steel on the steel plate according to the ground sample lines; the bed-jig steel plate is fully distributed with a first bolt hole group, and the I-shaped steel is fixedly connected with the bed-jig steel plate through a first bolt;
the steel truss underwater mounting support comprises a top adjusting device, an H-shaped steel beam, a support steel pipe, channel steel, angle steel, a steel pipe connecting device and a steel pipe pile; the support steel pipe, the channel steel and the angle steel are connected to form a lattice column support, an H-shaped steel cross beam is arranged at the top of the support steel pipe, and the cross beams are connected through the channel steel; the top adjusting device is arranged on the profile steel upper flange plate and comprises a circular steel chassis, a hydraulic jack, steel pillars and adjustable jacking supports, a limiting groove is formed in the center of the chassis and used for placing the hydraulic jack, the steel pillars are uniformly arranged on the periphery of the chassis, and the adjustable jacking supports are arranged at the top ends of the steel pillars; a steel pipe connecting device is arranged at the joint of the support steel pipe and the steel pipe pile, and comprises an upper flange plate, a lower flange plate, stiffening plates and third bolt holes, wherein the stiffening plates are uniformly arranged on the periphery of the flange plates, and the third bolt holes are formed in the flange plates;
the steel truss installation and attachment type construction platform comprises a hanging basket, an upper roller, a lower roller, an upper panel, a lower panel, a limiting pulley, a steel beam and a steel beam splicing plate, wherein the steel beam is an H-shaped transverse and longitudinal main beam of a steel truss arch bridge, the steel beam comprises a steel beam upper flange plate, a steel beam web plate and a steel beam lower flange plate, the steel beam upper flange plate and the steel beam lower flange plate are respectively positioned at the upper end and the lower end of the steel beam web plate, the steel beam splicing plate is positioned at the connecting part of the steel beam, and the steel beam splicing plate is vertically connected with the; the two upper panels are positioned above the upper flange plate of the steel beam, the two upper panels are in anchoring connection with the connecting plate through a fourth bolt, and the two lower panels are positioned below the lower flange plate of the steel beam; the hanging basket is respectively connected with the upper panel and the lower panel through connecting rods; the upper idler wheel is connected with the upper panel through an idler wheel fixing plate and is positioned between the upper panel and the steel beam upper flange plate, the lower idler wheel is connected with the lower panel through an idler wheel fixing plate and is positioned between the lower panel and the steel beam lower flange plate, and the limiting pulley is connected with the connecting rod through a pulley fastener and is positioned between the outer sides of the steel beam upper flange plate and the steel beam lower flange plate and the connecting rod;
the steel truss arch bridge cantilever hanger construction platform comprises a hanger rail, universal idler wheels, cantilever arms, a bridge deck, a tie bar, a reinforcing diagonal bar, a cantilever hanger, a vertical plate, a side flange plate, a bottom plate and a rail clamping device, wherein the bridge deck is arranged above the tie bar, the cantilever arms are arranged on the outer side of the bridge deck, and the cantilever arms are provided with cantilever hanger racks; the cantilever hanging rack is a semi-closed extension type hanging rack and is formed by welding channel steel and angle steel, the bottom of the cantilever hanging rack is closed, the upper part of the cantilever hanging rack is hollow, reinforcing inclined rods are arranged on the outer edges of two sides of the bottom of the cantilever hanging rack, and universal rollers are arranged below two ends of the channel steel of the upper structure of the cantilever hanging rack; the rail clamping device is arranged at the top end of the hanger facing the bridge deck slab and connected with a hanger rail, the hanger rail is of an 'upper' shape structure, and the hanger rail is arranged at the edge of the bridge deck slab.
Preferably, the method comprises the following steps: the adjacent steel plates of the jig frame are spliced through the connecting grooves and the connecting steel sheets, the connecting grooves are provided with connecting groove bolt holes, the connecting steel sheets are provided with second bolt holes, and the connecting groove bolt holes are correspondingly spliced with the second bolt holes and penetrate through the second bolts.
Preferably, the method comprises the following steps: the pre-assembly unit is temporarily fixed through a temporary connecting piece.
Preferably, the method comprises the following steps: and a gasket is arranged between the second bolt and the bed-jig steel plate.
Preferably, the method comprises the following steps: the H-shaped steel beam comprises a section steel upper flange plate, a section steel lower flange plate and a section steel web plate, wherein the section steel web plate is arranged between the section steel upper flange plate and the section steel lower flange plate and is connected with each other by channel steel.
Preferably, the method comprises the following steps: and the upper flange plate and the lower flange plate are correspondingly provided with stiffening plates and third bolt holes, and the two flange plates are connected through third bolts.
Preferably, the method comprises the following steps: and a fourth bolt hole is correspondingly arranged on the connecting plate and the upper panel, and the fourth bolt hole is connected with a fourth bolt in a matching way.
Preferably, the method comprises the following steps: the hanger rail comprises a vertical plate, a side flange plate and a bottom plate, the vertical plate is arranged on the bottom plate, the side flange plate is arranged on one side of the vertical plate and connected with a rail clamping device, a second bolt hole is formed in the bottom plate, and the bottom plate is connected with the bridge deck through a second bolt.
Preferably, the method comprises the following steps: the universal idler wheel is fixed on the channel steel through an idler wheel fixing plate.
The utility model has the advantages that:
1. the utility model discloses the steel truss spelling bed-jig that sets up can overcome and assemble the problem of place unevenness in advance, and the base is firm not to slide, can assemble the bed-jig of corresponding size in order to supply the quick try on of steel truss component according to assembling unit size fast in advance.
2. The utility model discloses steel pipe connecting device in the steel truss aquatic installing support that sets up, simple structure can be fast and firmly connect steel-pipe pile and lattice column support steel pipe, has set up safe firm interim buttress fast, and it is also more convenient to dismantle after waiting the engineering to finish.
3. The utility model discloses bottom adjusting device in the steel truss aquatic installing support that sets up dismantles simple to operate, can tentatively fix a position steel truss arch bar position, plays simultaneously and adjusts and the supporting role, has saved the jack mount, and effective fixed protection hydraulic jack reduces the apparatus and takes up an area of to the elevation to the member can carry out the accurate adjustment.
4. The utility model discloses the steel truss installation attached construction platform that sets up can be under construction simultaneously in the girder steel both sides, improves work efficiency, and simple structure, conveniently dismantles and transport to construction platform can directly pass through the girder steel splice plate smoothly.
5. The utility model discloses the steel truss arch bridge that sets up is chosen arm stores pylon construction platform, simple manufacture, round trip movement safe and reliable on choosing the arm makes things convenient for constructor to weld, paint operation such as repairment to the welding seam of choosing the arm below.
Drawings
FIG. 1 is a schematic view of a steel truss arch bridge installation system;
FIG. 2 is a schematic view of a steel truss assembly jig;
FIG. 3 is a schematic view of the connection of the bed frame members of FIG. 2;
FIG. 4 is a side view of FIG. 1 taken from 1-1;
FIG. 5 is a detail of the top adjustment device at A of FIG. 4;
FIG. 6 is a perspective view of the top adjustment device;
FIG. 7 is a detailed view of the steel pipe coupling device at B in FIG. 4;
FIG. 8 is a plan view of the steel pipe connecting apparatus;
FIG. 9 is a top view of the steel pipe connecting device;
FIG. 10 is a detail view of the steel truss installation attachment construction platform at C of FIG. 1;
FIG. 11 is a left side view of FIG. 10;
FIG. 12 is a plan view of a steel truss installation attachment construction platform;
FIG. 13 is a schematic view of the cantilever arm pylon construction platform of the steel truss arch bridge of FIG. 1;
FIG. 14 is a detail of the pylon track at D in FIG. 13;
fig. 15 is a top view of fig. 13.
Description of reference numerals: 1-connecting groove; 2-connecting the groove bolt hole; 3-second bolt hole; 4-connecting steel sheets; 5-I-steel; 6-ground sample line; 7-temporary connection; 8-first bolt hole group; 9-bed frame steel plate; 10-first bolt; 11-second bolt; 12-a washer; 13-jig support legs; 14-supporting leg lifting adjusting device; 15-top adjustment means; 16-H-shaped steel beam; 17-bracket steel pipe; 18-channel steel; 19-angle steel; 20-steel pipe connection device; 21-steel pipe pile; 22-a section steel upper flange plate; 23-lattice column support; 24-a section steel lower flange plate; 25-section steel web; 26-hydraulic jack; 27-adjustable jacking; 28-steel struts; 29-Chassis; 30-a limit groove; 31-third bolt; 32-flange plate; 33-stiffening plate; 34-third bolt hole; 35-hanger rail; 36-universal roller; 37-cantilever arm; 38-roller fixing plate; 39-bridge deck; 40-tie bar; 41-reinforcing diagonal bar; 42-cantilever hanging rack; 43-riser; 44-side flange plate; 45-bottom plate; 46-rail clamping device; 47-hanging basket; 48-connecting rod; 49-upper roller; 50-upper panel; 51-fourth bolt; 52-connecting plate; 53-spacing pulley; 54-steel beam upper flange plate; 55-steel beam web; 56-steel beam lower flange plate; 57-steel beam splice plate; 58-lower panel; 59-fourth bolt hole; 60-pulley fasteners; 61-lower roller; 62-steel beam; 63-attached construction platform.
Detailed Description
The present invention will be further described with reference to the following examples. The following description of the embodiments is merely provided to aid in understanding the invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
The steel truss arch bridge installation system comprises a steel truss assembling jig frame, a steel truss underwater installation support, a steel truss installation and attachment type construction platform and a steel truss arch bridge cantilever arm hanging frame construction platform.
The steel truss assembling jig comprises a connecting groove 1, a connecting steel sheet 4, I-shaped steel 5, a ground sample line 6, a first bolt hole group 8, jig steel plates 9, a first bolt 10, a second bolt 11, jig support legs 13 and a support leg lifting adjusting device 14, wherein the connecting groove 1 and the connecting steel sheet 4 are respectively arranged on opposite sides of each jig steel plate 9, and the connecting groove 1 and the connecting steel sheet 4 are respectively provided with a bolt hole and connected through the second bolt 11; jig frame supporting legs 13 are arranged at four corners of the bottom of the jig frame steel plate 9, and supporting leg lifting adjusting devices 14 are arranged on the jig frame supporting legs 13; drawing ground sample lines 6 of the pre-assembled units on the jig frame steel plates 9, and arranging I-shaped steel 5 on the steel plates according to the ground sample lines 6; the jig steel plate 9 is fully distributed with the first bolt hole group 8, and the I-shaped steel 5 is fixedly connected with the jig steel plate 9 through the first bolts 10. The adjacent bed-jig steel plates 9 are spliced through the connecting grooves 1 and the connecting steel sheets 4, the connecting grooves 1 are provided with connecting groove bolt holes 2, the connecting steel sheets 4 are provided with second bolt holes 3, and the connecting groove bolt holes 2 are correspondingly spliced with the second bolt holes 3 and penetrate through second bolts 11. The pre-assembled unit is temporarily fixed by a temporary connecting piece 7. A washer 12 is arranged between the second bolt 11 and the jig frame steel plate 9.
The steel truss underwater mounting support comprises a top adjusting device 15, an H-shaped steel beam 16, a support steel pipe 17, channel steel 18, angle steel 19, a steel pipe connecting device 20 and a steel pipe pile 21; the support steel pipe 17, the channel steel 18 and the angle steel 19 are connected to form a lattice column support 23, an H-shaped steel beam 16 is arranged at the top of the support steel pipe 17, and the beams are connected through the channel steel 18; the profile steel upper flange plate 22 is provided with a top adjusting device 15, the top adjusting device 15 comprises a circular steel chassis 29, hydraulic jacks 26, steel pillars 28 and adjustable jacking supports 27, the center of the chassis 29 is provided with a limiting groove 30 for placing the hydraulic jacks 26, the steel pillars 28 are uniformly arranged around the chassis 29, and the adjustable jacking supports 27 are arranged at the top ends of the steel pillars 28; the steel pipe connecting device 20 is arranged at the joint of the support steel pipe 17 and the steel pipe pile 21, the steel pipe connecting device 20 comprises an upper flange plate 32, a lower flange plate 32, a stiffening plate 33 and a third bolt hole 34, the stiffening plate 33 is uniformly arranged on the periphery of the flange plate 32, and the third bolt hole 34 is formed in the flange plate 32. The H-shaped steel beam 16 comprises a section steel upper flange plate 22, a section steel lower flange plate 24 and a section steel web plate 25, the section steel web plate 25 is arranged between the section steel upper flange plate 22 and the section steel lower flange plate 24, and the section steel web plate 25 is connected through a channel steel 18. The upper and lower flange plates 32 are correspondingly provided with stiffening plates 33 and third bolt holes 34, and the two flange plates 32 are connected through third bolts 31.
The steel truss installation and attachment type construction platform comprises a hanging basket 47, an upper roller 49, a lower roller 61, an upper panel 50, a lower panel 58, a limiting pulley 53, a steel beam 62 and a steel beam splicing plate 57, wherein the steel beam 62 is an H-shaped transverse and longitudinal main beam of a steel truss arch bridge; the steel beam 62 is an H-shaped transverse and longitudinal main beam of the steel truss arch bridge, the steel beam 62 comprises a steel beam upper flange plate 54, a steel beam web plate 55 and a steel beam lower flange plate 56, the steel beam upper flange plate and the steel beam lower flange plate are respectively positioned at the upper end and the lower end of the steel beam web plate 55, the steel beam splicing plate 57 is positioned at the connection part of the steel beam 62, and the steel beam splicing plate 57 is vertically connected with the steel beam web plate 55; the two upper panels 50 are positioned above the steel beam upper flange plates 54, the two upper panels 50 are in anchoring connection through fourth bolts 51 and connecting plates 52, and the two lower panels 58 are positioned below the steel beam lower flange plates 56; the hanging basket 47 is respectively connected with the upper panel 50 and the lower panel 58 through connecting rods 48; the upper roller 49 is connected with the upper panel 50 through the roller fixing plate 38 and is positioned between the upper panel 50 and the steel beam upper flange plate 54, the lower roller 61 is connected with the lower panel 58 through the roller fixing plate 38 and is positioned between the lower panel 58 and the steel beam lower flange plate 56, and the limiting pulley 53 is connected with the connecting rod 48 through the pulley fastening piece 60 and is positioned between the outer side of the steel beam upper flange plate and the steel beam lower flange plate and the connecting rod 48. The connecting plate 52 and the upper panel 50 are correspondingly provided with a fourth bolt hole 59, and the fourth bolt hole 59 is connected with the fourth bolt 51 in a matching way.
The steel truss arch bridge cantilever hanger construction platform comprises a hanger rail 35, universal rollers 36, cantilever arms 37, a bridge deck 39, a tie bar 40, a reinforcing diagonal bar 41, a cantilever hanger 42, a vertical plate 43, a side flange plate 44, a bottom plate 45 and a rail clamping device 46, wherein the bridge deck 39 is installed above the tie bar 40, cantilever arms 37 are arranged on the outer sides of the bridge deck 39, and the cantilever arms 37 are provided with the cantilever hanger 42; the cantilever hanging rack 42 is a semi-closed extension type hanging rack and is formed by welding channel steel 18 and angle steel 19, the bottom of the cantilever hanging rack 42 is closed, the upper part of the cantilever hanging rack is hollow, reinforcing inclined rods 41 are arranged on the outer edges of two sides of the bottom of the cantilever hanging rack 42, and universal rollers 36 are arranged below two ends of the channel steel 18 of the upper structure of the cantilever hanging rack 42; and a rail clamping device 46 is arranged at the top end of the hanger facing the bridge deck plate 39, the rail clamping device 46 is connected with the hanger rail 35, the hanger rail 35 is of an upper-shaped structure, and the hanger rail 35 is arranged at the edge of the bridge deck plate 39. The hanger rail 35 comprises a vertical plate 43, a side flange plate 44 and a bottom plate 45, the vertical plate 43 is arranged on the bottom plate 45, the side flange plate 44 is arranged on one side of the vertical plate 43, the side flange plate 44 is connected with a rail clamping device 46, a second bolt hole 3 is formed in the bottom plate 45, and the bottom plate 45 is connected with the bridge deck 39 through a second bolt 11. The universal rollers 36 are fixed on the channel steel 18 through roller fixing plates 38.
The construction method of the steel truss arch bridge installation system comprises the following steps:
step one, manufacturing arch rib chords, web members, vertical rods, tie bars and suspension rods in main truss rod pieces of the steel truss arch bridge by adopting single rod pieces, and performing plane pre-assembly on the side span, the main truss rod pieces of the main span and the bridge deck system after the rod pieces are manufactured. According to the size of the pre-assembled unit piece, grooves 1 are connected in a butt joint mode through connecting steel sheets 4 between the bed-jig steel plates 9 and fixed through second bolts 11, the bed-jig steel plates serve as bed-jig platforms after the unified levelness is adjusted through supporting leg lifting adjusting devices 14, H-shaped steel 5 is laid on the platforms according to ground sample lines 6 and serves as bed-jig supports, the pre-assembled units are temporarily fixed through temporary connecting pieces 7, then the single-piece trusses are integrally pre-assembled according to the number of turns, and drilling of part of hole groups of the rod pieces is completed in the pre-assembling process.
And step two, installing the steel truss arch by adopting a support hoisting method, firstly installing the side span and the joint section, then installing the mid-span bridge deck, and arranging a support as a temporary buttress before hoisting. The side span bridge deck slab installation adopts lattice column support 23 and concrete to enlarge the basis, and the mid span bridge deck slab installation adopts lattice column support 23 and steel-pipe pile 21 benchmark.
Step three, arranging a steel truss underwater installation support system, taking a three-dimensional latticed column support 23 formed by welding a support steel pipe 17, angle steel 19 and channel steel 18 as a main body, welding an H-shaped steel beam 16 at the top of the support steel pipe 17, welding the channel steel 18 between the beams for connection and reinforcement, welding a flange plate 22 on the profile steel with a chassis 29 of a top adjusting device 15, placing a hydraulic jack 26 in a limiting groove 30 at the center of the chassis 29, and using the top adjusting device 15 to perform primary positioning and accurate elevation adjustment on a steel truss arch rod piece.
Step four, the lattice column support steel pipe and the underwater steel pipe pile are connected through the steel pipe connecting device 20, one flange plate 32 is welded to the lower end of the support steel pipe 17 and the upper end of the steel pipe pile 21 respectively, the stiffening plates 33 are welded to the periphery of the support steel pipe, the third bolt 31 is used for connecting and anchoring the two flange plates, the support steel pipe 17 and the steel pipe pile 21 can be stably connected, and the underwater installation support is quickly built, so that bridge deck system construction is facilitated.
And step five, during the construction of the bridge deck system, an attached construction platform 63 needs to be arranged for bolting and welding between the cross beam and the tie bar, a movable hanging basket 47 is made of phi 16 steel bars, the bottom of the hanging basket is provided with a wood springboard, and the top of the hanging basket is sealed in a hollow mode. Firstly, all parts of the construction platform are conveyed to the installation starting end of the steel beam, and assembly and symmetrical arrangement installation are carried out. The upper roller 49 is welded and fixed with the upper panel 50 through the roller fixing plate 38 and is arranged on the upper side of the steel beam upper flange plate 54; the lower roller 61 is welded and fixed to the lower panel 58 by the roller fixing plate 38, and is disposed below the steel beam lower flange plate 56. Spacing pulley 53 is welded on connecting rod 48 according to the girder height, can slide along the girder flange board outside. Hang basket 47 and upper panel 50, lower panel 58 welding respectively through connecting rod 48 and link to each other, and two basket platforms of bilateral symmetry link to each other through upper panel 50, use fourth bolt 51 and connecting plate 52 anchor, attach two hanging flower basket construction platforms on girder steel 62 to supply constructor to carry out the high-strength bolt to connecting rod spare and carry out the welding jobs.
And step six, after the cantilever arm 37 of the bridge deck system is installed in sections, welding, paint coating and other operations are carried out on a welding seam below the cantilever arm 37, and a special cantilever arm hanging frame construction platform needs to be installed. The cantilever hanging rack 42 is mainly formed by welding channel steel 18 and angle steel 19, a wood springboard is arranged on a lower structure, 4 universal rollers 36 are welded at four corners below the channel steel 18 of an upper structure, a rail clamping device 46 is welded at each top end of the channel steel 18, an upper-shaped hanging rack rail 35 is arranged at the edge of a bridge deck 39 and is anchored by using a second bolt 11, and the cantilever hanging rack 42 is connected with a side flange plate 44 of the hanging rack rail through the rail clamping device 46 to play a role in bearing and sliding.
Claims (9)
1. The steel truss arch bridge installation system is characterized by comprising a steel truss assembling jig frame, a steel truss underwater installation support, a steel truss installation and attachment type construction platform and a steel truss arch bridge cantilever arm hanging frame construction platform;
the steel truss assembling jig comprises a connecting groove (1), connecting steel sheets (4), I-shaped steel (5), ground sample lines (6), a first bolt hole group (8), jig steel plates (9), first bolts (10), second bolts (11), jig support legs (13) and a support leg lifting adjusting device (14), wherein the connecting groove (1) and the connecting steel sheets (4) are respectively arranged on opposite sides of each jig steel plate (9), and the connecting groove (1) and the connecting steel sheets (4) are respectively provided with bolt holes and connected through the second bolts (11); four corners of the bottom of the jig frame steel plate (9) are provided with jig frame supporting legs (13), and the jig frame supporting legs (13) are provided with lifting adjusting devices (14); drawing ground sample lines (6) of the pre-assembled units on the jig steel plates (9), and arranging I-shaped steel (5) on the steel plates according to the ground sample lines (6); the bed-jig steel plate (9) is fully distributed with a first bolt hole group (8), and the I-shaped steel (5) is fixedly connected with the bed-jig steel plate (9) through a first bolt (10);
the steel truss underwater mounting support comprises a top adjusting device (15), an H-shaped steel beam (16), a support steel pipe (17), a channel steel (18), angle steel (19), a steel pipe connecting device (20) and a steel pipe pile (21); the support steel pipe (17), the channel steel (18) and the angle steel (19) are connected to form a lattice column support (23), an H-shaped steel beam (16) is arranged at the top of the support steel pipe (17), and the beams are connected through the channel steel (18); the upper flange plate (22) of the profile steel is provided with a top adjusting device (15), the top adjusting device (15) comprises a circular steel chassis (29), a hydraulic jack (26), a steel pillar (28) and an adjustable jacking (27), a limiting groove (30) is formed in the center of the chassis (29) and used for placing the hydraulic jack (26), the steel pillar (28) is uniformly arranged on the periphery of the chassis (29), and the adjustable jacking (27) is arranged at the top end of the steel pillar (28); a steel pipe connecting device (20) is arranged at the joint of the support steel pipe (17) and the steel pipe pile (21), the steel pipe connecting device (20) comprises an upper flange plate (32), a lower flange plate (32), stiffening plates (33) and third bolt holes (34), the stiffening plates (33) are uniformly arranged on the periphery of the flange plates (32), and the third bolt holes (34) are formed in the flange plates (32);
the steel truss installation and attachment type construction platform comprises a hanging basket (47), an upper roller (49), a lower roller (61), an upper panel (50), a lower panel (58), a limiting pulley (53), a steel beam (62) and a steel beam splicing plate (57), wherein the steel beam (62) is an H-shaped transverse and longitudinal main beam of a steel truss arch bridge, the steel beam (62) comprises a steel beam upper flange plate (54), a steel beam web plate (55) and a steel beam lower flange plate (56), the steel beam upper flange plate and the steel beam lower flange plate are respectively positioned at the upper end and the lower end of the steel beam web plate (55), the steel beam splicing plate (57) is positioned at the joint of the steel beam (62), and the steel beam splicing plate (57) is vertically connected with the steel beam web plate (; the two upper panels (50) are positioned above the steel beam upper flange plates (54), the two upper panels (50) are connected with each other in an anchoring mode through fourth bolts (51) and connecting plates (52), and the two lower panels (58) are positioned below the steel beam lower flange plates (56); the hanging basket (47) is respectively connected with the upper panel (50) and the lower panel (58) through connecting rods (48); the upper roller (49) is connected with the upper panel (50) through a roller fixing plate (38) and is positioned between the upper panel (50) and the steel beam upper flange plate (54), the lower roller (61) is connected with the lower panel (58) through the roller fixing plate (38) and is positioned between the lower panel (58) and the steel beam lower flange plate (56), and the limiting pulley (53) is connected with the connecting rod (48) through a pulley fastener (60) and is positioned between the outer side of the steel beam upper flange plate and the outer side of the steel beam lower flange plate and the connecting rod (48);
the steel truss arch bridge cantilever arm hanger construction platform comprises a hanger rail (35), universal rollers (36), cantilever arms (37), a bridge deck (39), a tie rod (40), a reinforcing diagonal rod (41), a cantilever arm hanger (42), a vertical plate (43), a side flange plate (44), a bottom plate (45) and a rail clamping device (46), wherein the bridge deck (39) is installed above the tie rod (40), the cantilever arms (37) are arranged on the outer side of the bridge deck (39), and the cantilever arms (37) are provided with the cantilever arm hanger (42); the cantilever hanging rack (42) is a semi-closed extension type hanging rack and is formed by welding channel steel (18) and angle steel (19), the bottom of the cantilever hanging rack (42) is closed, the upper part of the cantilever hanging rack is hollow, reinforcing inclined rods (41) are arranged on the outer edges of two sides of the bottom of the cantilever hanging rack (42), and universal rollers (36) are arranged below two ends of the channel steel (18) of the upper structure of the cantilever hanging rack (42); the hanger top end towards the bridge deck plate (39) is provided with a rail clamping device (46), the rail clamping device (46) is connected with a hanger rail (35), the hanger rail (35) is of an 'upper' shape structure, and the hanger rail (35) is arranged on the edge of the bridge deck plate (39).
2. The steel truss arch bridge installation system of claim 1, wherein adjacent steel plates (9) of the jig frame are spliced through the connecting grooves (1) and the connecting steel plates (4), connecting groove bolt holes (2) are formed in the connecting grooves (1), second bolt holes (3) are formed in the connecting steel plates (4), and the connecting groove bolt holes (2) are correspondingly spliced with the second bolt holes (3) and penetrate through the second bolts (11).
3. A steel truss arch bridge installation system according to claim 1, wherein the pre-assembled unit is temporarily fixed by a temporary connection member (7).
4. The steel truss arch bridge installation system of claim 1, wherein a washer (12) is provided between the second bolt (11) and the bed steel plate (9).
5. The steel truss arch bridge installation system of claim 1, wherein the H-shaped steel beam (16) comprises an upper section steel flange plate (22), a lower section steel flange plate (24) and a section steel web (25), the section steel web (25) is arranged between the upper section steel flange plate (22) and the lower section steel flange plate (24), and the section steel webs (25) are connected through a channel steel (18).
6. The steel truss arch bridge installation system of claim 1, wherein the upper and lower flange plates (32) are correspondingly provided with stiffening plates (33) and third bolt holes (34), and the two flange plates (32) are connected through the third bolts (31).
7. The steel truss arch bridge installation system of claim 1, wherein the connection plate (52) and the upper panel (50) are correspondingly provided with fourth bolt holes (59), and the fourth bolt holes (59) are matched and connected with the fourth bolts (51).
8. The steel truss arch bridge installation system of claim 1, wherein the pylon rail (35) comprises a vertical plate (43), a side flange plate (44) and a bottom plate (45), the bottom plate (45) is provided with the vertical plate (43), one side of the vertical plate (43) is provided with the side flange plate (44), the side flange plate (44) is connected with the rail clamping device (46), the bottom plate (45) is provided with the second bolt hole (3), and the bottom plate (45) is connected with the bridge deck (39) through the second bolt (11).
9. The steel truss arch bridge installation system of claim 1, wherein the universal rollers (36) are secured to the channel (18) by roller securing plates (38).
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258294A (en) * | 2019-04-30 | 2019-09-20 | 安徽省公路桥梁工程有限公司 | Steel truss arch bridge installs system and its construction method |
| CN111593673A (en) * | 2020-06-12 | 2020-08-28 | 安徽省公路桥梁工程有限公司 | Steel truss arch bridge and construction method |
| CN111663451A (en) * | 2020-06-18 | 2020-09-15 | 中铁四局集团有限公司 | Construction method of ultrahigh tower of long-span bearing type continuous steel truss girder bridge in high mountain canyon |
| CN114369996A (en) * | 2021-11-26 | 2022-04-19 | 中铁二局集团有限公司 | Method for mounting steel pipe column of pier in bridge water |
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2019
- 2019-04-30 CN CN201920623268.9U patent/CN210658011U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258294A (en) * | 2019-04-30 | 2019-09-20 | 安徽省公路桥梁工程有限公司 | Steel truss arch bridge installs system and its construction method |
| CN111593673A (en) * | 2020-06-12 | 2020-08-28 | 安徽省公路桥梁工程有限公司 | Steel truss arch bridge and construction method |
| CN111663451A (en) * | 2020-06-18 | 2020-09-15 | 中铁四局集团有限公司 | Construction method of ultrahigh tower of long-span bearing type continuous steel truss girder bridge in high mountain canyon |
| CN114369996A (en) * | 2021-11-26 | 2022-04-19 | 中铁二局集团有限公司 | Method for mounting steel pipe column of pier in bridge water |
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