CN108086127B - Assembled aluminum alloy emergency bridge - Google Patents
Assembled aluminum alloy emergency bridge Download PDFInfo
- Publication number
- CN108086127B CN108086127B CN201711164233.5A CN201711164233A CN108086127B CN 108086127 B CN108086127 B CN 108086127B CN 201711164233 A CN201711164233 A CN 201711164233A CN 108086127 B CN108086127 B CN 108086127B
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- bridge
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 33
- 239000000956 alloy Substances 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 230000008439 repair process Effects 0.000 abstract description 4
- 230000004044 response Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D15/00—Movable or portable bridges; Floating bridges
- E01D15/12—Portable or sectional bridges
- E01D15/133—Portable or sectional bridges built-up from readily separable standardised sections or elements, e.g. Bailey bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
- E01D2101/34—Metal non-ferrous, e.g. aluminium
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the technical field of emergency rescue, in particular to an assembled emergency bridge. An assembled aluminum alloy emergency bridge, comprising: the bridge comprises a chord member, a triangular truss, a cross beam, a bridge deck, a bridge support, a wind-resistant pull rod, a bolt and a connecting pipe; the chord members, the main structure of the triangular truss, the cross beam, the bridge deck, the wind-resistant pull rod and the connecting pipes are all made of aluminum alloy materials; the overall connection relationship is as follows: the triangular truss bottom more than two forms truss group through connecting pipe and bolt connection, and two sets of truss group set up side by side, and the chord member is installed at the top of truss group, and the crossbeam setting alternately sets up the anti-wind pull rod bottom adjacent crossbeam between two sets of truss groups, and the decking erects on the crossbeam, and the bridge support setting is organized both ends at the truss. The invention greatly improves the emergency response speed and the emergency repair efficiency and is well applied to the engineering emergency repair practice.
Description
Technical Field
The invention relates to the technical field of emergency rescue, in particular to an assembled emergency bridge.
Background
In emergency rescue and relief work, an emergency bridge which needs to be erected manually and quickly is urgently needed, at present, an assembly type highway steel bridge is mainly used as the emergency bridge, the weight of each main component is 270-430 kg, and the number of people for carrying each component is 12-16; the total weight of a 51-meter assembled highway steel bridge with a single lane is about 90 tons, more personnel are needed for manual erection, the erection time is long, the bridge is difficult to push, and the requirements of emergency rescue and relief on emergency bridges are not met.
Disclosure of Invention
The purpose of the invention is: in order to meet the requirement of rapidly erecting an emergency bridge during emergency rescue and relief work, the assembled aluminum alloy emergency bridge which is simple in structure and can be erected manually and rapidly is provided.
The technical scheme of the invention is as follows: an assembled aluminum alloy emergency bridge, comprising: the bridge comprises a chord member, a triangular truss, a cross beam, a bridge deck, a bridge support, a wind-resistant pull rod, a bolt and a connecting pipe;
the chord members, the main structure of the triangular truss, the cross beam, the bridge deck, the wind-resistant pull rod and the connecting pipes are all made of aluminum alloy materials;
the overall connection relationship is as follows: the triangular truss bottom more than two forms truss group through connecting pipe and bolt connection, and two sets of truss group set up side by side, and the chord member is installed at the top of truss group, and the crossbeam setting alternately sets up the anti-wind pull rod bottom adjacent crossbeam between two sets of truss groups, and the decking erects on the crossbeam, and the bridge support setting is organized both ends at the truss.
Specifically, the method comprises the following steps: the chord member is an extrusion-molded aluminum alloy rectangular tube, and coaxial pin holes A are respectively drilled in the side surfaces of two ends of the chord member.
The triangular truss includes: the upper splice plate, the web members, the lower chord members, the lower splice plate and the end plates; the web members and the lower chord members are extrusion-molded aluminum alloy rectangular pipes, and the two web members and the lower chord member are spliced into a triangular structure to form a main body structure of the triangular truss; the top of the main structure of the triangular truss is assembled through two upper splicing plates, and the upper parts of the upper splicing plates are provided with coaxial pin holes B for fixing chord members; two sides of the bottom of the main body structure of the triangular truss are respectively assembled through two groups of lower splicing plates, and coaxial pin holes C are drilled at the joints of the lower chords and the lower splicing plates; end plates are welded between each group of lower splicing plates, and shear pin holes A for connecting the cross beams are drilled in the end plates.
The crossbeam adopts aluminium alloy H shaped steel, and the bridge face board connecting bolt hole has been bored to crossbeam up end, and the anti-shear pin has been welded respectively at crossbeam web both ends, and the lower wing plate both ends of crossbeam have carried out local tailorring, and 4 angles of lower wing plate after tailorring have bored the bolt hole respectively.
The bridge deck slab is an extrusion-molded aluminum alloy multi-cavity plate, and an anti-skid wear-resistant coating is sprayed on the upper surface of the bridge deck slab; bolt mounting holes are drilled at four corners of the bridge deck, and transverse connecting holes are drilled at two sides of the bridge deck and welded with transverse connecting pins.
The bridge support is assembled by an upper rocking base and a lower rocking base which are connected through a shaft; two lug plates are welded on the upper part of the upper rocking base, and a sealing plate is welded between the two lug plates; coaxial pin holes D are drilled on the two lug plates, and shear pin holes B are drilled on the sealing plates.
The wind-resistant pull rod is made of aluminum alloy channel steel, and bolt holes are drilled in the two ends and the middle of the wind-resistant pull rod.
The connecting pipe is an extrusion-molded aluminum alloy short rectangular pipe, and coaxial pin holes E are drilled in two sides of the connecting pipe and used for connecting the triangular trusses.
When the emergency bridge is assembled, the middle and lower chords of more than two triangular trusses are sleeved in through the connecting pipes and inserted with the bolts, so that the trusses are connected to form a truss group; the truss groups are arranged side by side, and the shear pins at two ends of the cross beam are respectively inserted into the shear pin holes A at the lower parts of the triangular trusses at two sides; the end parts of the chord members are inserted into the upper splice plates at the upper parts of two adjacent triangular trusses in the truss group, the coaxial pin holes A and the coaxial pin holes B are aligned, and pins are inserted; two wind-resistant pull rods are arranged between every two cross beams in a crossed manner; bridge deck boards are installed on two adjacent beams, and the connected bridge deck boards are connected through transverse connecting holes and transverse connecting pins; bridge supports are installed at two ends of the truss group, connecting pipes are sleeved in ear plates of the bridge supports, pins are inserted in the ear plates, and shear pin holes B in the sealing plates are sleeved in shear pins of the cross beams.
Has the advantages that: the invention has the characteristics of light weight, convenient connection, stable structure, high erection speed and the like, meets the requirements of 'the human-machine engineering design criteria of military equipment and facilities', greatly improves the emergency response speed and the emergency repair efficiency, and is well applied to the engineering emergency repair practice.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the chord member of the present invention;
FIG. 3 is a schematic view of a triangular truss structure according to the present invention;
FIG. 4 is a schematic view of a cross beam structure according to the present invention;
FIG. 5 is a schematic view of the bridge deck structure according to the present invention;
FIG. 6 is a schematic view of a bridge support according to the present invention;
FIG. 7 is a schematic view of the structure of the wind-resistant pull rod of the present invention;
fig. 8 is a schematic view of the structure of the connecting tube of the present invention.
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
Referring to fig. 1, an assembled aluminum alloy emergency bridge comprises: the bridge comprises a chord 1, a triangular truss 2, a cross beam 3, a bridge deck 4, a bridge support 5, a wind-resistant pull rod 6, a plug pin 7 and a connecting pipe 8;
the chord members 1, the main structure of the triangular truss 2, the cross beam 3, the bridge deck 4, the wind-resistant pull rod 6 and the connecting pipe 8 are all made of aluminum alloy materials;
the overall connection relationship is as follows: the bottom of the triangular truss 2 more than two is connected with the bolt 7 through the connecting pipe 8 to form a truss group, the two truss groups are arranged side by side, the chord members 1 are arranged at the top of the truss group, the cross beam 3 is arranged between the two truss groups, the bottom of the adjacent cross beam 3 is alternately provided with the wind-resistant pull rod 6, the bridge deck plate 4 is erected on the cross beam 3, and the bridge support 5 is arranged at the two ends of the truss group.
The following details of the components that make up the emergency bridge:
referring to fig. 2, the chord member 1 is an extrusion-molded aluminum alloy rectangular tube, and coaxial pin holes a18 are drilled in the side surfaces of two ends of the extrusion-molded aluminum alloy rectangular tube respectively.
Referring to fig. 3, the triangular truss 2 includes: the upper splicing plate 9, the web members 10, the lower chord 11, the lower splicing plate 12 and the end plate 13; the web members 10 and the lower chord 11 are extrusion-molded aluminum alloy rectangular pipes, and the two web members 10 and the lower chord 11 are spliced into a triangular structure to form a main body structure of the triangular truss 2; the top of the main structure of the triangular truss 2 is assembled by two upper splicing plates 9, and the upper parts of the upper splicing plates 9 are provided with coaxial pin holes B14 for fixing the chord members 1; two sides of the bottom of the main structure of the triangular truss 2 are respectively assembled through two groups of lower splicing plates 12, and coaxial pin holes C15 are drilled at the joints of the lower chords 11 and the lower splicing plates 12; end plates 13 are welded between each group of lower splicing plates 12, and shear pin holes A16 for connecting the cross beams 3 are drilled in the end plates 13.
Referring to the attached drawing 4, the cross beam 3 is made of aluminum alloy H-shaped steel, bridge deck connection bolt holes 20 are drilled in the upper end face of the cross beam 3, shear pins 21 are welded to two ends of a web plate of the cross beam 3 respectively, two ends of a lower wing plate of the cross beam 3 are partially cut, and bolt holes 22 are drilled in corners of the cut lower wing plate 4 respectively.
Referring to the attached figure 5, the bridge deck 4 is an extrusion-molded aluminum alloy multi-cavity plate, and an anti-skid wear-resistant coating 27 is sprayed on the upper surface of the bridge deck; the four corners of the bridge deck 4 are drilled with bolt mounting holes 24, and the two sides are drilled with transverse connecting holes 25 and welded with transverse connecting pins 26.
Referring to fig. 6, the bridge support 5 is assembled by an upper rocker 29 and a lower rocker 28 connected by a shaft 30; two lug plates 31 are welded on the upper part of the upper rocking base, and a sealing plate 32 is welded between the two lug plates 31; coaxial pin holes D33 are drilled in the two ear plates 31, and shear pin holes B34 are drilled in the sealing plate 32.
Referring to fig. 7, the wind-resistant tension rod 6 is an aluminum alloy channel steel, and bolt holes 36 are drilled at both ends and the middle thereof.
Referring to fig. 8, the connecting pipe 8 is an extruded aluminum alloy short rectangular pipe, and coaxial pin holes E37 are drilled on both sides of the short rectangular pipe for connecting the triangular trusses 2.
When the emergency bridge is assembled, the lower chords 11 of more than two triangular trusses 2 are sleeved in through the connecting pipes 8 and inserted into the bolts 7, so that the trusses are connected to form a truss group; the truss groups are arranged side by side, and the shear pins 21 at the two ends of the cross beam 3 are respectively inserted into the shear pin holes A16 at the lower parts of the triangular trusses 2 at the two sides; the end parts of the chords 1 are inserted into the upper splicing plates 9 on the upper parts of two adjacent triangular trusses 2 in the truss group, the coaxial pin holes A18 are aligned with the coaxial pin holes B14, and pins are inserted; two wind-resistant pull rods 6 are arranged between every two cross beams 3 in a crossed mode and fixed through bolts, the main bridge truss is assembled in such a way that the lower surface of the main bridge truss is smooth, and the main bridge truss can smoothly pass through the erection rollers during erection; the bridge deck boards 4 are arranged on two adjacent cross beams 3, and the connected bridge deck boards 4 are connected through transverse connecting holes 25 and transverse connecting pins 26; bridge supports 5 are arranged at two ends of the truss group, connecting pipes 8 are sleeved in lug plates 31 of the bridge supports 5, pins are inserted in the connecting pipes, and shear pin holes B34 in the sealing plates 32 are sleeved in shear pins 21 of the cross beams 3.
The weight of each of all the components of the bridge is less than 160 kg, and 4-6 persons can carry and erect each component.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides an emergent bridge of assembled aluminum alloy which characterized in that: it includes: the bridge comprises chords (1), triangular trusses (2), cross beams (3), bridge decks (4), bridge supports (5), wind-resistant pull rods (6), bolts (7) and connecting pipes (8);
the chord members (1), the main structure of the triangular truss (2), the cross beam (3), the bridge deck (4), the wind-resistant pull rod (6) and the connecting pipe (8) are all made of aluminum alloy materials;
the overall connection relationship is as follows: the bottoms of more than two triangular trusses (2) are connected with the bolt (7) through the connecting pipe (8) to form a truss group, two truss groups are arranged side by side, the chord member (1) is installed at the top of the truss group, the cross beam (3) is arranged between the two truss groups, the wind-resistant pull rods (6) are arranged at the bottoms of the adjacent cross beams (3) in a crossed mode, the bridge deck (4) is erected on the cross beam (3), and the bridge supports (5) are arranged at the two ends of the truss group;
the chord member (1) is an extrusion-molded aluminum alloy rectangular tube, and coaxial pin holes A (18) are respectively drilled in the side surfaces of two ends of the chord member;
the triangular truss (2) comprises: the upper splicing plate (9), the web members (10), the lower chord members (11), the lower splicing plate (12) and the end plate (13); the web members (10) and the lower chord members (11) are extrusion-molded aluminum alloy rectangular tubes, and the two web members (10) and the lower chord member (11) are spliced into a triangular structure to form a main body structure of the triangular truss (2); the top of the main structure of the triangular truss (2) is assembled through two upper splicing plates (9), and coaxial pin holes B (14) are formed in the upper parts of the upper splicing plates (9) and used for fixing the chord members (1); two sides of the bottom of the main structure of the triangular truss (2) are respectively assembled through two groups of lower splicing plates (12), and coaxial pin holes C (15) are drilled at the joints of the lower chords (11) and the lower splicing plates (12); the end plates (13) are welded between each group of the lower splicing plates (12), and shear pin holes A (16) for connecting the cross beams (3) are drilled in the end plates (13);
a bridge deck plate connecting bolt hole (20) is drilled in the upper end face of the cross beam (3), shear resistant pins (21) are respectively welded at two ends of a web plate of the cross beam (3), two ends of a lower wing plate of the cross beam (3) are partially cut, and bolt holes (22) are respectively drilled in 4 corners of the cut lower wing plate;
the connecting pipe (8) is an extrusion-molded aluminum alloy short rectangular pipe, and coaxial pin holes E (37) are drilled in two sides of the extrusion-molded aluminum alloy short rectangular pipe and used for connecting the triangular trusses (2); when the emergency bridge is assembled, the lower chords (11) of more than two triangular trusses (2) are sleeved in through the connecting pipes (8) and inserted with the bolts (7) to form a truss group through connection;
the bridge support (5) is assembled by an upper rocking seat (29) and a lower rocking seat (28) which are connected through a shaft (30); two lug plates (31) are welded on the upper part of the upper rocking seat, and a sealing plate (32) is welded between the two lug plates (31); coaxial pin holes D (33) are drilled in the two lug plates (31), and shear pin holes B (34) are drilled in the sealing plate (32); when the bridge supports (5) are installed at two ends of the truss group, the connecting pipe (8) is sleeved in the ear plates (31) of the bridge supports (5) and pins are inserted, and the shear pin holes B (34) in the sealing plates (32) are sleeved in the shear pins (21) of the cross beam (3).
2. An assembled aluminum alloy emergency bridge according to claim 1, wherein: the bridge deck (4) is an extrusion-molded aluminum alloy multi-cavity plate, and an anti-skid wear-resistant coating (27) is sprayed on the upper surface of the bridge deck; bolt mounting holes (24) are drilled at four corners of the bridge deck (4), and transverse connecting holes (25) are drilled at two sides of the bridge deck and welded with transverse connecting pins (26).
3. An assembled aluminum alloy emergency bridge according to claim 2, wherein: the wind-resistant pull rod (6) is aluminum alloy channel steel, and bolt holes (36) are drilled in the two ends and the middle of the wind-resistant pull rod.
4. An assembled aluminum alloy emergency bridge according to claim 3, wherein: when the emergency bridge is assembled, the connection is realized to form a truss group; the truss groups are arranged side by side, and the shear pins (21) at two ends of the cross beam (3) are respectively inserted into the shear pin holes A (16) at the lower parts of the triangular trusses (2) at two sides; the end parts of the chord members (1) are inserted into the upper splicing plates (9) at the upper parts of two adjacent triangular trusses (2) in the truss group, and the coaxial pin holes A (18) are aligned with the coaxial pin holes B (14) and are inserted with pins; two wind-resistant pull rods (6) are arranged between every two cross beams (3) in a crossed manner; the bridge deck boards (4) are mounted on the two adjacent cross beams (3), and the connected bridge deck boards (4) are connected through the transverse connecting holes (25) and the transverse connecting pins (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711164233.5A CN108086127B (en) | 2017-11-21 | 2017-11-21 | Assembled aluminum alloy emergency bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711164233.5A CN108086127B (en) | 2017-11-21 | 2017-11-21 | Assembled aluminum alloy emergency bridge |
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| CN108086127A CN108086127A (en) | 2018-05-29 |
| CN108086127B true CN108086127B (en) | 2020-05-05 |
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| CN201711164233.5A Active CN108086127B (en) | 2017-11-21 | 2017-11-21 | Assembled aluminum alloy emergency bridge |
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| CN113463496B (en) * | 2021-05-07 | 2022-09-23 | 安徽建筑大学 | Self-balancing detachable truss bridge structure |
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| CN2114675U (en) * | 1992-02-27 | 1992-09-02 | 广州军区工程科研设计所 | Collapsible stereo triangle truss mountain walking bridge |
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