CN215857130U - Stable multi-span spatial hyperstatic system - Google Patents

Abstract

The utility model belongs to the technical field of the frame bridge structure and specifically relates to a stabilize many strides space hyperstatic system is related to, it is including being used for makeing somebody a mere figurehead original orbital stiffening beam body, the stiffening beam body includes longeron, violently lift roof beam and sleeper beam, the longeron sets up and lifts roof beam top violently, longeron and violently lift roof beam cross arrangement, the violently lift the roof beam and arrange original orbital below in, violently lift roof beam and longeron cross arrangement, the below of stiffening beam body is provided with the foundation ditch, violently lift the roof beam structure and establish on the earthwork of foundation ditch both sides. This application has the effect that the span was consolidated in the increase.

Description

Stable multi-span spatial hyperstatic system

Technical Field

The application relates to the field of frame bridge structures, in particular to a stable multi-span spatial hyperstatic system.

Background

Along with the development of social economy, more and more planned roads and urban roads need to pass through the existing business lines of railways, the business lines of railways need to be built, the railway passing construction is mostly carried out by adopting integral frame bridge jacking operation at present, and the lines need to be reinforced before jacking in order to ensure the traffic safety of railways.

Among the correlation technique, among the built on stilts reinforced line in the construction of reconstruction bridge and culvert, traditional construction mode has three kinds: a rail beam longitudinal-cantilever transverse-lifting reinforcing method, a large I-shaped steel reinforcing method and a D-shaped construction beam-erecting method. A transverse lifting and longitudinal picking overhead reinforcing method: the overhead line reinforcing method adopts the rail beam as a longitudinal beam and the 40H-shaped steel as a transverse beam lifting line. D-shaped construction template beam hollow reinforcing method: the existing reinforced line has four spans of D12, D16, D20 and D24. A large I-beam reinforcing method is characterized in that large I-beam beams with fixed modulus are connected by adopting an equal strength method to form a long and long-span continuous beam.

In view of the above-mentioned related technologies, the inventor believes that there are the following defects in the above three construction processes, the maximum span of the reinforced structure is 24m, and only temporary girders can be erected for many times in the jacking construction of the porous frame bridge, so that the construction period is long.

SUMMERY OF THE UTILITY MODEL

In order to increase the span of the reinforced structure, the application provides a stable multi-span space statically indeterminate system.

The application provides a stable multispan spatial hyperstatic system adopts following technical scheme:

the stable multi-span spatial hyperstatic system comprises a reinforcing beam body for erecting an original track, wherein the reinforcing beam body comprises a longitudinal beam, a transverse lifting beam and a sleeper beam, the longitudinal beam is arranged above the transverse lifting beam, the longitudinal beam and the transverse lifting beam are arranged in a crossed mode, the transverse lifting beam is arranged below the original track, the transverse lifting beam and the longitudinal beam are arranged in a crossed mode, a foundation pit is arranged below the reinforcing beam body, and the transverse lifting beam is erected on the earthwork of two sides of the foundation pit.

By adopting the technical scheme, the sleeper beam penetrates through the original track to erect the original track, the longitudinal beam is connected with the sleeper beam, the structure of the sleeper beam is fixed, the foundation pit is used for placing the frame of the frame bridge, and the cross beams are erected on two sides of the foundation pit to form a multi-span space structure system which can be continuously lengthened, so that skylight points and slow running time can be greatly reduced, the construction period is shortened, and better economic benefits are obtained.

Preferably, the top of the transverse lifting beam is provided with a beam plate I, the bottom of the longitudinal beam is provided with a bottom plate, the bottom plate is arranged on the beam plate I, and the transverse lifting beam and the longitudinal beam are provided with a connecting assembly for fixing the transverse lifting beam and the longitudinal beam.

Through adopting above-mentioned technical scheme, coupling assembling is used for connecting beam slab one and bottom plate, and it is comparatively convenient to make beam slab one and longeron welded form, assembly.

Preferably, the connecting assembly comprises a fourth fastening bolt and a fourth fastening nut, the fourth fastening bolt penetrates through the first beam plate and the bottom plate, and the fourth fastening nut is in threaded connection with the fourth fastening bolt.

Through adopting above-mentioned technical scheme, fastening nut four and four threaded connection of fastening bolt to make the roof beam body and bottom plate fixed.

Preferably, the top of the sleeper beam is provided with a first plate body, the bottom plate is arranged on the first plate body, the bottom of the longitudinal beam is fixed with the first plate body, and the first bottom plate and the first plate body are provided with a first connecting structure for fixing the first bottom plate and the first plate body.

By adopting the technical scheme, the longitudinal beam is fixed on the sleeper beam, and then the longitudinal beam and the sleeper beam are arranged in a crossed manner, so that the purpose of reinforcing the body structure of the reinforcing beam is achieved.

Preferably, the sleeper beam comprises a first plate body, the first connecting structure comprises an assembly part, the assembly part comprises a reinforcing plate and a mounting plate, the reinforcing plate is vertically fixed to the mounting plate, a plurality of rib plates are arranged on the side wall of the longitudinal beam, the reinforcing plate is fixed to the rib plates, and the mounting plate is fixed to the first plate body.

By adopting the technical scheme, the assembly parts are connected with the rib plates and the top of the sleeper beam, so that the longitudinal beam is connected with the sleeper beam, the end part of the sleeper beam is fixed with the longitudinal beam, and the sleeper beam is erected between the longitudinal beams.

Preferably, the sleeper beam further comprises a beam plate III vertically fixed with the beam plate I, and the first connecting structure further comprises an assembling plate which is arranged on the side of the sleeper beam and fixed with the beam plate III and the rib plate.

Through adopting above-mentioned technical scheme, make the beam slab III that the pilot plate connects the sleeper beam and the floor on the longeron to make the tip and the floor of sleeper beam fixed, in order to strengthen the connection structure of sleeper beam and longeron.

Preferably, the longitudinal beam is formed by splicing a plurality of beam bodies along the length direction.

By adopting the technical scheme, the beam bodies can be continuously spliced to form a continuously lengthened space-spanning structural system, so that the beam bodies can be conveniently erected.

Preferably, a plurality of temporary piles for supporting the reinforcing beam body are arranged in the foundation pit.

Through adopting above-mentioned technical scheme, the stake is used for supporting the reinforcing beam body temporarily, sets up a plurality of fulcrums on the longer reinforcing beam body of span to the structure that makes the reinforcing beam body is comparatively stable.

Drawings

Fig. 1 is a schematic diagram of an overall structure of a stable multi-span spatial hyperstatic system in embodiment 1 of the present application.

Fig. 2 is a schematic structural diagram of a beam in a stable multi-span spatial hyperstatic system in embodiment 1 of the present application.

Fig. 3 is a schematic structural diagram of a longitudinal beam in a stable multi-span spatial hyperstatic system according to embodiment 1 of the present application.

Fig. 4 is a cross-sectional view of a bolster in a stable multi-span spatial hyperstatic system in example 1 of the present application.

Fig. 5 is a schematic structural diagram of a longitudinal beam and a transverse cantilever beam in a stable multi-span spatial hyperstatic system according to embodiment 1 of the present application.

Fig. 6 is a connection structure diagram of a bolster and a stringer in a stable multi-span space hyperstatic system according to example 2 of the present application.

Fig. 7 is a connection structure diagram of a bolster and a stringer in a stable multi-span space hyperstatic system according to example 2 of the present application.

Reference numerals: 1. a stringer; 10. a beam body; 100. a top plate; 1000. a second connecting hole; 101. a base plate; 1010. a second fixing hole; 1011. a fourth fixing hole; 102. a side plate; 1020. a fourth connecting hole; 103. a rib plate; 1030. a fourth assembling hole; 11. a second connecting structure; 12. a first connecting plate; 13. a second connecting plate; 14. a third connecting plate; 15. a first fastener; 150. fastening a first bolt; 151. fastening a first nut; 16. a second fastener; 160. fastening a second bolt; 161. fastening a second nut; 2. transversely lifting the beam; 20. a first beam plate; 200. a third fixing hole; 21. a beam plate II; 22. a beam plate III; 3. a bolster; 30. a first plate body; 300. a first fixing hole; 301. a wing plate; 302. reinforcing ribs; 31. a second plate body; 32. a third plate body; 4. a first connecting structure; 40. fastening a bolt III; 41. fastening a nut III; 5. a connecting assembly; 50. fastening a bolt IV; 51. fastening a nut IV; 60. an original track; 61. a foundation pit; 62. temporary piles; 70. assembling a plate; 700. a first assembling hole; 701. a second assembling hole; 71. an assembly member; 710. a reinforcing plate; 7101. a first mounting hole; 711. mounting a plate; 7110. a second mounting hole; 72. assembling the components; 73. a first connecting piece; 730. connecting a first bolt; 731. a first connecting nut; 74. a second connecting piece; 740. a second connecting bolt; 741. a second connecting nut; 75. a third connecting piece; 750. connecting a third bolt; 751. a third connecting nut; 76. a connecting piece IV; 760. connecting a bolt IV; 761. and connecting a nut IV.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

The embodiment of the application discloses a stable multi-span spatial hyperstatic system.

Example 1

Referring to fig. 1, many strides space hyperstatic system includes the stiffening beam body, and the stiffening beam body includes longeron 1, horizontal beam 2 and sleeper beam 3, and longeron 1 sets up to two, and sleeper beam 3 sets up to a plurality ofly, and sleeper beam 3 sets up in the below of longeron 1, and sleeper beam 3 all sets up with two longerons 1 perpendicularly, is provided with connection structure 4 between sleeper beam 3 and the longeron 1, and connection structure 4 is used for connecting sleeper beam 3 and longeron 1. The transverse lifting beam 2 is also provided with a plurality of transverse lifting beams, the transverse lifting beams 2 and the sleeper beam 3 are arranged in parallel at intervals, the transverse lifting beams 2 are arranged below the longitudinal beam 1, the transverse lifting beams 2 and the longitudinal beam 1 are provided with connecting assemblies 5, and the connecting assemblies 5 are used for fixing the transverse lifting beams 2 and the longitudinal beam 1.

Referring to fig. 1, the reinforcing beam body is installed on an original rail 60, the original rail 60 comprises sleepers and rail bodies, the sleepers are arranged to be of rectangular long-strip-shaped structures, the sleepers are arranged in parallel, spaced and parallel, the rail is arranged above the sleepers, the rail and the sleepers are arranged perpendicularly, the sleepers 3 and the transverse lifting beams 2 penetrate through the sleepers, the rail bodies are arranged on the sleepers 3 and the transverse lifting beams 2, the sleepers and the sleepers 3 are fixed through ropes, and the longitudinal beams 1 are installed on the sleepers 3 and the transverse lifting beams 2. Digging out foundation ditch 61 in original track 60 below, make horizontal lifting beam 2 set up on the earthwork of both sides, be provided with the pilework 62 in the below of strengthening beam body, the pilework 62 is arranged in foundation ditch 61, and the pile bolck and the sleeper beam 3 butt of pilework 62 to make somebody a mere figurehead with original track 60.

Referring to fig. 1, a longitudinal beam 1 includes a plurality of beam bodies 10 and a second connecting structure 11, the beam bodies 10 are arranged in a longitudinal direction between the beam bodies 10, and the second connecting structure 11 is disposed between adjacent beam bodies 10 to connect a tail end of a previous beam body 10 with a head end of a next beam body 10.

Referring to fig. 2, the beam 10 includes a top plate 100, a bottom plate 101 and two side plates 102, the top plate 100 and the bottom plate 101 are spaced in parallel, the bottom plate 101 has a width greater than that of the top plate 100, the two side plates 102 are spaced in parallel, the side plates 102 are disposed between the top plate 100 and the bottom plate 101, and the side plates 102 are welded to the top plate 100 and the bottom plate 101 perpendicularly. A plurality of ribbed plates 103 are further welded on the first side plate 102, the ribbed plates 103 are perpendicularly welded to the outer surface of the first side plate 102, and the ribbed plates 103 are arranged in parallel at intervals.

Referring to fig. 3, the second connecting structure 11 includes a first connecting plate 12, a second connecting plate 13, a third connecting plate 14, a plurality of first fasteners 15 and a second fastener 16, the first connecting plate 12 is used for connecting top plates 100 of the front and rear beam bodies 10, the second connecting plate 13 is used for connecting side plates 102 of the front and rear beam bodies 10, and the third connecting plate 14 is used for connecting bottom plates 101 of the front and rear beam bodies 10. The first fastener 15 is arranged on the first connecting plate 12 and the top plate 100, and the second fastener 16 is arranged on the second connecting plate 13 and the side plate 102.

Referring to fig. 3, four first connecting plates 12 are provided, two of the four first connecting plates 12 are respectively provided at both sides of the beam 10, two first connecting plates 12 are respectively provided at upper and lower surfaces of the front and rear top plates 100, and the first connecting holes are formed in the first connecting plates 12. Referring to fig. 2, a second connection hole 1000 corresponding to the first connection hole is formed in the top plate 100, the first fastening member 15 includes a first fastening bolt 150 and a first fastening nut 151, the first fastening bolt 150 penetrates through the first connection hole and the second connection hole 1000, the head of the first fastening bolt 150 abuts against the first connection plate 12 above the top plate 100, the first fastening nut 151 is in threaded connection with a screw of the first fastening bolt 150, and the first fastening nut 151 abuts against the first connection plate 12 below the top plate 100.

Referring to fig. 3, the second connecting plate 13 is vertically arranged, the second connecting plate 13 is arranged into two, the second connecting plates 13 are respectively arranged on two sides of the longitudinal beam 1, the second connecting plate 13 is installed on the side plate 102 of the longitudinal beam 1, the second connecting plate 13 is provided with a third connecting hole, in combination with fig. 2, the side plate 102 of the beam body 10 is provided with a third connecting hole, a corresponding fourth connecting hole 1020, the fourth connecting hole 1020 and the third connecting hole are arranged in multiple rows and multiple columns, the second fastening member 16 is arranged in the first connecting hole and the fourth connecting hole 1020 in a penetrating manner, the second fastening member 16 comprises a second fastening bolt 160 and a second fastening nut 161, the second fastening bolt 160 penetrates through the second connecting plate 13 and the two side plates 102, the head of the second fastening bolt 160 is abutted against the second connecting plate 13, the second fastening nut 161 is in threaded connection with the second fastening bolt 160, and the second fastening nut 161 is abutted against the second connecting plate 13.

The third connecting plate 14 is mounted on the bottom plate 101 in the same manner as the first connecting plate 12 is mounted on the top plate 100, and the description thereof is omitted.

Referring to fig. 3 and 4, the sleeper beam 3 includes a first plate body 30, a second plate body 31 and a third plate body 32, the first plate body 30 and the second plate body 31 are arranged in parallel at intervals, the third plate body 32 is arranged between the first plate body 30 and the second plate body 31, the third plate body 32, the first plate body 30 and the second plate body 31 are all welded perpendicularly, the cross section of the sleeper beam 3 is made of a long-strip-shaped rigid material in an i shape, a first fixing hole 300 is formed in the first plate body 30, a second fixing hole 1010 is formed in a bottom plate 101 of the longitudinal beam 1, and the first fixing hole 300 and the second fixing hole 1010 can be aligned. The connecting assembly 5 comprises a third fastening bolt 40 and a third fastening nut 41, the screw portion of the third fastening bolt 40 penetrates through the first fixing hole 300 and the second fixing hole 1010, and the third fastening nut 41 is in threaded connection with the third fastening bolt 40 so as to fix the sleeper beam 3 at the bottom of the longitudinal beam 1.

Referring to fig. 4, wing plates 301 are disposed on two sides of the first plate 30, the wing plates 301 are perpendicularly welded to the first plate 30, reinforcing ribs 302 are disposed between the wing plates 301 and the third plate 32, and the reinforcing ribs 302 are welded to both the wing plates 301 and the third plate 32. The reinforcing ribs 302 are provided in plurality at regular intervals along the length direction of the body bolster 3 to reinforce the structure of the body bolster 3.

Referring to fig. 5, the cross-lift beam 2 comprises a first beam plate 20, a second beam plate 21 and a third beam plate 22, wherein the first beam plate 20 and the second beam plate 21 are arranged in parallel at intervals, the third beam plate 22 is arranged in two, the third beam plate 22 is arranged in parallel at intervals, the third beam plate 22 is arranged between the first beam plate 20 and the second beam plate 21, and the third beam plate 22, the first beam plate 20 and the second beam plate 21 are vertically welded. The first beam plate 20 is arranged above the second beam plate 21, the third fixing hole 200 is formed in the first beam plate 20, the fourth fixing hole 1011 is formed in the bottom plate 101, the connecting assembly 5 comprises the fourth fastening bolt 50 and the fourth fastening nut 51, the fourth fastening bolt 50 penetrates through the third fixing hole 200 and the fourth fixing hole 1011, and the fourth fastening nut 51 and the fourth fastening bolt 50 are in threaded connection so as to assemble the cross lifting beam 2 on the longitudinal beam 1.

The implementation principle of the stable multi-span spatial hyperstatic system in the embodiment of the application is as follows: the sleeper beam 3 and the transverse lifting beam 2 are arranged on the original track 60 in a penetrating mode, the longitudinal beam 1 is arranged on the transverse lifting beam 2 of the sleeper beam 3, a foundation pit 61 is dug below the sleeper beam 3 and the transverse lifting beam 2, the transverse lifting beam 2 is erected on the earthwork on two sides of the foundation pit 61, the purpose of erecting a bridge body is achieved, and the longitudinal beams 1 are spliced one by one to enable the reinforcing beam body to be large in span.

Example 2

The multi-span space hyperstatic system comprises a reinforcing beam body, the reinforcing beam body is the same as that in the embodiment 1, and the difference is in the connection mode of the longitudinal beams 1 and the sleeper beam 3 and the structure of the connection structure I4, in the embodiment, the sleeper beam 3 is arranged between the two longitudinal beams 1, and two ends of the sleeper beam 3 are arranged on rib plates 103 of the longitudinal beams 1.

Referring to fig. 6 and 7, the first connecting structure 4 includes an assembly plate 70, an assembly member 71 and an assembly member 72, the assembly plate 70 is provided as a rectangular plate-shaped structure, the assembly plate 70 is provided as two, the two assembly plates 70 are respectively provided on both sides of the bolster 3, the assembly member 72 includes a first connecting member 73, a second connecting member 74, a third connecting member 75 and a fourth connecting member 76, the first connecting member 73 is installed on the assembly plate 70 and the cross beam 2, the second connecting member 74 is installed on the rib plate 103 of the assembly plate 70, the third connecting member 75 is installed on the assembly member 71 of the rib plate 103, and the fourth connecting member 76 is installed on the cross beam 2 and the assembly member 71.

The first connecting piece 73 comprises a first connecting bolt 730 and a first connecting nut 731, the first connecting bolt 730 penetrates through the first connecting bolt, a first assembling hole 700 and a second assembling hole 701 are formed in the assembling plate 70, a third assembling hole is formed in the third beam plate 22 of the transverse lifting beam 2, the first connecting bolt 730 penetrates through the first assembling hole 700 and the third assembling hole, and the first connecting nut 731 is in threaded connection with the first connecting bolt 730. The rib plate 103 is provided with a fourth assembling hole 1030, the second connecting piece 74 comprises a second connecting bolt 740 and a second connecting nut 741, the second connecting bolt 740 penetrates through the fourth assembling hole 1030 and the third assembling hole, and the second connecting bolt 740 is in threaded connection with the second connecting nut 741.

Referring to fig. 7, fitting 71 includes reinforcing plate 710 and mounting plate 711, reinforcing plate 710 is disposed vertically, mounting plate 711 is disposed horizontally, mounting plate 711 is welded to reinforcing plate 710, fitting assemblies 72 are disposed in two, fitting assemblies 72 are disposed on both sides of rib plate 103, respectively, and connecting member three 75 is mounted on fitting 71 and rib plate 103. The reinforcing plate 710 is provided with a first mounting hole 7101, the third connecting piece 75 comprises a third connecting bolt 750 and a third connecting nut 751, the reinforcing plate 710 is arranged on two sides of the ribbed slab 103, the third connecting bolt 750 penetrates through the first mounting hole 7101 and the fourth mounting hole 1030, the third connecting nut 751 is in threaded connection with the third connecting bolt 750, the head of the third connecting bolt 750 is abutted against one reinforcing plate 710, and the third connecting nut 751 is abutted against the other reinforcing plate 710, so that the assembly part 71 is connected with the longitudinal beam 1.

The mounting plate 711 is provided with a second mounting hole 7110, the fourth connecting member 76 includes a fourth connecting bolt 760 and a fourth connecting nut 761, the fourth connecting bolt 760 penetrates through the second mounting hole 7110 and the first fixing hole 300 of the sleeper beam 3, and the fourth connecting bolt 760 is in threaded connection with the fourth connecting nut 761 to connect the assembly member 71 with the sleeper beam 3.

The implementation principle of the stable multi-span spatial hyperstatic system in the embodiment of the application is as follows: the transverse lifting beam 2 penetrates through the original track 60, the longitudinal beam 1 is installed on the transverse lifting beam 2, the sleeper beam 3 is arranged between the longitudinal beams 1, a foundation pit 61 is dug below the transverse lifting beam 2, the transverse lifting beam 2 is erected on the earthwork on two sides of the foundation pit 61, the purpose of erecting a bridge body is achieved, and the longitudinal beams 1 are spliced one by one to achieve the purpose of large span of a reinforcing beam body.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. A stable multi-span spatial hyperstatic system is characterized in that: the reinforcing beam comprises a reinforcing beam body used for erecting an original track (60), wherein the reinforcing beam body comprises a longitudinal beam (1), a cross lifting beam (2) and a sleeper beam (3), the longitudinal beam (1) is arranged above the cross lifting beam (2), the longitudinal beam (1) and the cross lifting beam (2) are arranged in a crossed mode, the cross lifting beam (2) is arranged below the original track (60), the cross lifting beam (2) and the longitudinal beam (1) are arranged in a crossed mode, a foundation pit (61) is arranged below the reinforcing beam body, and the cross lifting beam (2) is erected on the earthwork of two sides of the foundation pit (61).

2. The stable multispan spatial hyperstatic system according to claim 1, characterized by: the top of the transverse lifting beam (2) is provided with a beam plate I (20), the bottom of the longitudinal beam (1) is provided with a bottom plate (101), the bottom plate (101) is arranged on the beam plate I (20), and the transverse lifting beam (2) and the longitudinal beam (1) are provided with a connecting assembly (5) for fixing the transverse lifting beam (2) and the longitudinal beam (1).

3. The stable multispan spatial hyperstatic system according to claim 2, characterized by: the connecting assembly (5) comprises a fastening bolt four (50) and a fastening nut four (51), the fastening bolt four (50) penetrates through the beam plate one (20) and the bottom plate (101), and the fastening nut four (51) is in threaded connection with the fastening bolt four (50).

4. The stable multispan spatial hyperstatic system according to claim 3, characterized by: the top of the sleeper beam (3) is provided with a first plate body (30), the bottom plate (101) is arranged on the first plate body (30), the bottom of the longitudinal beam (1) is fixed with the first plate body (30), and a first connecting structure (4) for fixing the bottom plate (101) and the first plate body (30) is arranged on the bottom plate (101) and the first plate body (30).

5. The stable multispan spatial hyperstatic system according to claim 4, characterized by: the sleeper beam (3) comprises a first plate body (30), the first connecting structure (4) comprises an assembly part (71), the assembly part (71) comprises a reinforcing plate (710) and an installation plate (711), the reinforcing plate (710) is vertically fixed with the installation plate (711), a plurality of ribbed plates (103) are arranged on the side wall of the longitudinal beam (1), the reinforcing plate (710) is fixed with the ribbed plates (103), and the installation plate (711) is fixed with the first plate body (30).

6. The stable multispan spatial hyperstatic system according to claim 5, characterized by: the sleeper beam (3) further comprises a beam plate III (22) vertically fixed with the beam plate I (20), the connecting structure I (4) further comprises an assembling plate (70), and the assembling plate (70) is arranged on the side of the sleeper beam (3) and fixed with the beam plate III (22) and the rib plate (103).

7. The stable multispan spatial hyperstatic system according to claim 1, characterized by: the longitudinal beam (1) is formed by splicing a plurality of beam bodies (10) along the length direction.

8. The stable multispan spatial hyperstatic system according to claim 1, characterized by: and a plurality of temporary piles (62) for supporting the reinforcing beam body are arranged in the foundation pit (61).

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