CN113818325B - Aluminum alloy pedestrian overpass - Google Patents

Aluminum alloy pedestrian overpass Download PDF

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Publication number
CN113818325B
CN113818325B CN202111285047.3A CN202111285047A CN113818325B CN 113818325 B CN113818325 B CN 113818325B CN 202111285047 A CN202111285047 A CN 202111285047A CN 113818325 B CN113818325 B CN 113818325B
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CN
China
Prior art keywords
stair
aluminum alloy
rod
bridge
bolts
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CN202111285047.3A
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Chinese (zh)
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CN113818325A (en
Inventor
邝海峰
邓春龙
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Guangdong Aluminum Bridge Engineering Co ltd
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Guangdong Aluminum Bridge Engineering Co ltd
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Priority to CN202111285047.3A priority Critical patent/CN113818325B/en
Publication of CN113818325A publication Critical patent/CN113818325A/en
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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
    • E01D1/00—Bridges in general
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D6/00—Truss-type bridges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/006—General building constructions or finishing work for buildings, e.g. roofs, gutters, stairs or floors; Garden equipment; Sunshades or parasols
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/60—Planning or developing urban green infrastructure

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Bridges Or Land Bridges (AREA)
  • Steps, Ramps, And Handrails (AREA)

Abstract

The invention relates to an aluminum alloy pedestrian overpass, which is characterized in that a bridge body, a ladder corridor, a ladder path straight rod, a ceiling, a decorative grid rod and an armrest are made of aluminum alloy materials, each group of truss body units comprises a plurality of groups of parallel transverse trusses and two side vertical trusses which are arranged at a certain distance, the two side vertical trusses are arranged vertically to the transverse trusses, and meanwhile, the connecting structures of a step tread, a ladder path longitudinal beam, the decorative grid rod, the bridge body armrest, the ladder path armrest and a water collecting tank are arranged, so that the bridge body structure is fast and convenient to assemble, the self weight of the bridge body is improved, the transportation cost is reduced, and the foundation cost of the ground is reduced; the method has the advantages of short site construction period, high speed, small installation difficulty, no need of long-time road sealing and barrier setting, good structural corrosion resistance, extremely low maintenance cost, and high recovery rate and low recovery treatment cost, and can be used for disassembling the aluminum alloy material which is a renewable aluminum alloy material.

Description

Aluminum alloy pedestrian overpass
Technical Field
The invention relates to the field of overpasses, in particular to an aluminum alloy pedestrian overpass.
Background
The traditional pedestrian overpass is generally built by adopting reinforced concrete or is formed by adopting a steel structure through bolting or field welding, the weight of the reinforced concrete parts is heavy, the construction period is long, the plasticity is low, and a large amount of construction waste is generated during the construction by adopting the casting in situ, so that the bridge is not environment-friendly; the construction period is long, and the road is blocked for a long time, so that traffic along the line is blocked; the structure is heavy, the aesthetic property is bad, and the transportation cost is high. The steel structure pedestrian overpass has the defects of easy corrosion, poor durability and high later maintenance cost; the recovery value and the recovery rate are low, the welding operation is not beneficial to environmental protection, and the structure is heavy.
At present, aluminum alloy is used as a new material of a bridge structure for urban pedestrian overpass construction, the aluminum alloy pedestrian overpass is light and smooth in shape, each rod piece can be transported to field hoisting construction after being assembled, the standard of an assembly structure which is greatly pushed at the present stage is met, the construction period can be greatly shortened, and the adverse effect of urban traffic of a construction team is reduced; the compact oxide film on the surface of the aluminum alloy ensures that the overpass has low maintenance cost, can be recycled and meets the requirements of sustainable development in China.
In view of this, the present designer devised an aluminum alloy pedestrian overpass.
Disclosure of Invention
The invention aims to solve the problems and the defects, and provides the aluminum alloy pedestrian overpass bridge structure which is light, environment-friendly, rapid and convenient to install, high in bridge strength and capable of recycling materials.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
an aluminum alloy pedestrian overpass, which is characterized in that: comprises a supporting bridge pier, a bridge body structure and a stair corridor structure which are made of aluminum alloy materials, a plurality of stair corridor straight rods, a stair corridor top longitudinal beam which is arranged at the top of the stair corridor straight rods, a stair corridor ceiling which is arranged at the upper part of the stair corridor top longitudinal beam, a plurality of decorative grid rods which are arranged at the two outsides of the bridge body and the stair corridor, a bridge body ceiling, and a bridge body handrail and a stair corridor handrail which are respectively arranged at the two insides of the bridge body and the two insides of the stair corridor,
the bridge body structure comprises at least two groups of truss body units spliced by connecting plates and bolts, each group of truss body units comprises a plurality of groups of parallel transverse trusses and two sides of vertical trusses, the two sides of vertical trusses are arranged vertically to the transverse trusses, and each side of vertical trusses comprises an upper chord, a lower chord, a plurality of side long vertical bars and side diagonal bars; the upper chord, the lower chord, the side long vertical rods and the plurality of groups of transverse trusses are connected into truss body units through connecting plates and bolts, and the plurality of truss body units are spliced into truss bodies through the connecting plates and the bolts; the bridge ceiling is arranged at the upper part of the side long vertical rod;
the bridge structure comprises a bridge tread, wherein the cross section of the bridge tread is rectangular, straight separating ribs are arranged in the bridge tread, a left groove is formed in the upper part of the left side of a splicing surface of the bridge tread, and a left bump is arranged in the lower part of the splicing surface of the bridge tread; the upper part of the right side of the splicing surface of the bridge pedal is provided with a right bump, and the lower part is provided with a right groove and a platform plate fixing plate; the left convex block is matched with the right convex block, the left convex block is matched with the right concave block, a second bolt is arranged at the position of the left convex block corresponding to the fixed plate of the platform plate to avoid the abdication, and an anti-slip edge is arranged on the upper surface of the bridge body tread; the bridge body step plate is fixed on the transverse truss in a matched manner through bolts and the platform plate fixing plate;
the stair corridor structure comprises two stair corridor supports arranged on a supporting bridge pier, two stair corridor longitudinal beams respectively arranged at the upper parts of the two stair corridor supports, a stair corridor connecting beam for connecting the two stair corridor longitudinal beams, a stair corridor secondary beam arranged between the two stair corridor longitudinal beams, a stair corridor platform plate arranged at the upper part of the stair corridor longitudinal beams, stair steps and a ramp, wherein long strip-shaped bolt dovetail grooves are arranged at the upper part and the lower part of the outer side of the stair corridor longitudinal beams, and the stair corridor straight rods are fixed on the stair corridor longitudinal beams in a matched manner through bolts and the bolt dovetail grooves; the outer side of the straight rod of the ladder way is also provided with an upper side rod and a lower side rod, and the decorative grid rod of the ladder way is fixed on the upper side rod and the lower side rod through bolts;
the stair step comprises a plane plate, an inclined panel and a straight plate, wherein an upper caulking groove and a stair fixing plate are arranged at the intersection of the inclined panel and the plane plate, the upper caulking groove is obliquely opened upwards, a lower caulking groove is arranged at the intersection of the inclined panel and the straight plate, the stair step is respectively in caulking joint with the previous stair step and the next stair step through the upper caulking groove and the lower caulking groove, the stair step is fixed on a stair rail through the cooperation of a bolt and the stair fixing plate, and an anti-slip edge is arranged on the upper surface of the plane plate of the stair step;
the decorative grid rod comprises a plurality of aluminum alloy section bars which are parallel according to a certain distance and are vertically arranged on two sides of the overpass body and two sides of the ladder way, right-angle grooves are formed in two sides of the decorative grid rod, lamp grooves are formed in the middle of the bottoms of the right-angle grooves, and LED lamp strips are arranged in the lamp grooves.
Further, the bridge body handrail and the stair railing comprise an aluminum alloy upper beam, an aluminum alloy lower beam, a baffle fixedly arranged on the corresponding inner sides of the aluminum alloy upper beam and the aluminum alloy lower beam, and a handrail arranged on the upper part of the aluminum alloy upper beam, wherein two convex blocks are arranged on the upper part of the aluminum alloy upper beam, and a clamping hook is arranged on the inner sides of the tail ends of the two convex blocks; the handrail comprises an arc-shaped buckle cover at the upper part and clamping grooves arranged at two sides of the lower part of the arc-shaped buckle cover, and a clasp matched with the clamping hook is arranged at one inner side edge of the two clamping grooves; the outer sides of the aluminum alloy upper cross beam and the aluminum alloy lower cross beam are provided with strip-shaped dovetail grooves, and the baffle body comprises a glass clamp and toughened laminated glass inlaid in the clamping grooves of the glass clamp; the aluminum alloy upper cross beam and the aluminum alloy lower cross beam are respectively connected with one end of the Z-shaped connecting piece through the matching of the bolts and the dovetail grooves, and the other end of the Z-shaped connecting piece is connected with a side long vertical rod of the bridge body or a stair straight rod of the stair through the bolts.
Further, the transverse truss comprises an upper cross rod and a lower cross rod, at least one straight rod and a first inclined rod, wherein the two ends of the upper cross rod and the lower cross rod are respectively and vertically connected with the lower parts of the two corresponding side long vertical rods, and the positions close to the middle parts of the upper cross rod and the lower cross rod; the upper cross rod and the lower cross rod are connected with the side long vertical rod through bolts; the straight rod and the first diagonal rod are connected with the upper cross rod and the lower cross rod through bolts; the bridge pedal plate is fixed on the upper cross rod through the cooperation of the bolts and the platform plate fixing plate;
further, the truss body unit comprises a middle truss body group, a left truss body group and a right truss body group, wherein the left truss body group and the right truss body group are respectively arranged corresponding to the left lane and the right lane, and the middle truss body group, the left truss body group and the right truss body group are respectively connected through a connecting plate and a plurality of bolts.
Further, the outer side and the inner side of the upper parts of the plurality of side long vertical rods of the two-side vertical trusses are respectively provided with an outer side upper longitudinal beam and an inner side upper longitudinal beam through the same bolt; the outer side and the inner side of the lower parts of the plurality of side long vertical rods of the two-side vertical trusses are respectively provided with an outer side lower longitudinal beam and an inner side lower longitudinal beam through the same bolt; the outer side upper longitudinal beam and the outer side lower longitudinal beam are provided with strip-shaped dovetail grooves on the outer sides, the decorative grid rods are arranged on the outer side upper longitudinal beam and the outer side lower longitudinal beam in parallel through the matching of bolts and the dovetail grooves, the bridge body top longitudinal beam is fixedly arranged on the inner side upper longitudinal beam through bolts, a top cross rod is arranged between the two bridge body top longitudinal beams, and the bridge body ceiling is arranged on the top cross rod through bolts.
Further, the stair path longitudinal beam comprises an aluminum alloy longitudinal beam body with a rectangular section and a lap joint seat integrally arranged on the inner side of the aluminum alloy longitudinal beam body, wherein the lap joint seat comprises a horizontal bearing plate, a straight plate which is integrally connected with the outer end of the horizontal bearing plate and is vertical downwards, and a support inclined plate which is connected with the lower part of the straight plate; a top cross beam is arranged between the two side bench top longitudinal beams, and a bench ceiling is arranged on the top cross beam.
Further, the upper caulking groove of the step tread comprises two convex blocks and one caulking groove arranged between the two convex blocks, the lower caulking groove comprises three convex blocks and two caulking grooves arranged between the three convex blocks, and the two convex blocks of the upper caulking groove are respectively matched with the two caulking grooves between the three convex blocks of the lower caulking groove; the lower caulking groove is concave at the position of the inclined panel corresponding to the lower caulking groove, so that a first bolt containing the step fixing plate and the fixing bolt is formed to avoid the abdication; the upper part of the straight plate of the step is outwards expanded and intersected with the plane plate to form a sharp corner; the inner cavity of the stair step is also provided with a plurality of reinforcing ribs.
Further, the upper end face and the lower end face of the decorative grid rod are connected with an upper transverse sealing rod and a lower transverse sealing rod.
Further, a bridge water collecting tank is erected at the upper part of the outer side upper longitudinal beam along the length direction of the bridge, and a water outlet is formed in the bridge water collecting tank; the upper longitudinal beam of the ladder way is provided with a ladder way water collecting groove along the length direction of the ladder way, the ladder way water collecting groove is provided with a water outlet, the bridge body water collecting groove and the ladder way water collecting groove are right-angle grooves made of aluminum profiles, the notch faces upwards, the bridge body water collecting groove is fixed on an upper chord member and a decorative grid rod through bolts, the tops of the ladder way straight rods are connected with a ladder way top longitudinal beam, and the ladder way water collecting groove is fixed on the ladder way top longitudinal beam and the decorative grid rod through bolts.
Further, the tread board has the same structure as the bridge tread board.
In the aspect of processing technology, the crystal structure of the aluminum metal simple substance is a cubic face-centered structure, which is equivalent to large sphere cubes and close packing, so that the metal aluminum has high workability, the aluminum alloy material can be pressed and extruded to form sectional materials, plate strips and the like with any sectional shape by pressure machinery, and the hot rolling method can not produce any sectional materials like the extrusion technology, thus being one of the more advantageous characteristics of the aluminum alloy material.
The beneficial effects of the invention are as follows:
1. the web members of the transverse truss and the two side vertical trusses are made of an independent aluminum pipe, two aluminum pipes are not needed to be combined, and the web members which are possibly caused by the bolt connection adopted by the combination of the two aluminum pipes are prevented from being bent.
2. The overall continuity of the transverse truss and the vertical trusses on the two sides is better, and the segmented connecting nodes are connected by adopting connecting plates and bolts, so that the integrity of the section bar is better ensured.
3. The upper chord member and the lower chord member are added with connecting plate stacking pieces, so that the stability of the truss is better.
4. Each group of truss body units comprises a plurality of groups of parallel transverse trusses and two side vertical trusses which are arranged at a certain distance, the two side vertical trusses are perpendicular to the transverse trusses, the assembly is rapid and convenient, and the strength of the bridge body is improved.
5. The stair steps are spliced through the head and tail parts, are fixed on the stair rail longitudinal beam through the matching of the bolts and the stair fixing plates, and the stair rail platform plates are spliced through the grooves and the protruding blocks and are fixed on the stair rail longitudinal beam through the matching of the bolts and the platform plate fixing plates, so that the stair rail longitudinal beam is rapid and convenient to assemble.
6. The upper portion and the lower part in the outside of aluminum alloy longeron body are equipped with rectangular bolt dovetail, and the bench straight-bar passes through bolt and bolt dovetail cooperation to be fixed on the bench longeron, and the bench straight-bar is assembled swiftly conveniently, and installs the vertically lamp groove on the bench straight-bar, installs the LED lamp area in the lamp groove, has both illumination and has played the effect of decorating the lamp again.
7. The bridge body of the overpass and the two sides of the stairway are provided with a plurality of grid bars, the two sides of the grid bars are provided with right-angle grooves, the middle of the bottom of each right-angle groove is provided with a lamp groove, the lamp grooves are internally provided with LED lamp bars, the grid bars play roles in protecting the overpass and improving the overall structural strength of the bridge body, and the light emitted from the two sides of the grid bars makes the bridge body look beautiful at night and plays a role in lighting pedestrians.
8. The outer sides of the upper cross beam of the aluminum alloy railing and the lower cross beam of the aluminum alloy railing are provided with the strip-shaped dovetail grooves, the long-strip-shaped dovetail grooves are matched with the bolt and fixed on the upper cross beam by using the Z-shaped connecting piece, and the connected aluminum alloy railing is convenient to install and improves the safety of the old, young or the weak when passing through the overpass.
9. The bridge body water collecting tank and the ladder way water collecting tank are right-angle tanks made of aluminum profiles, the notch faces upwards, the bridge body water collecting tank is erected on the upper portion of the outer side upper longitudinal beam and is fixed on the side long vertical rod and the bridge body grid rod through bolts, the ladder way water collecting tank is erected on the upper portion of the ladder way upper longitudinal beam and is fixed on the ladder way straight rod and the ladder way grid rod through bolts, and the assembly is fast and convenient, rainwater is drained effectively, and the rainwater is prevented from being sprayed on the bridge way and the ladder way.
10. The steel structure cover beam structure is adopted, and the transverse beam, the first longitudinal beam and the second longitudinal beam are adopted, so that the weight of the bridge pier is reduced, and the supporting strength of the steel structure cover beam is effectively improved. Two pairs of supporting steel backing plates are arranged on two sides of the upper part of the top plate of one steel structure cover beam for bridge piers at the intersection of the bridge body and the ladder way,
and meanwhile, the bridge body and the ladder way are subjected to bearing, so that the number of piers is reduced.
The aluminum alloy pedestrian overpass has light dead weight, reduces the transportation cost and reduces the ground foundation cost; the method has the advantages of short site construction period, high speed, small installation difficulty, no need of long-time road sealing and barrier setting, good structural corrosion resistance, extremely low maintenance cost, and high recovery rate and low recovery treatment cost, and can be used for disassembling the aluminum alloy material which is a renewable aluminum alloy material.
Drawings
FIG. 1 is a schematic illustration of the bridge construction of an aluminum alloy footbridge of the present invention (without a decorative grill bar installed);
FIG. 2 is a schematic view of a partially enlarged construction of an aluminum alloy footbridge bridge structure of the present invention (without decorative grille bars installed);
FIG. 3 is another enlarged partial schematic view of an aluminum alloy footbridge bridge structure of the present invention (after installation of decorative grille bars);
FIG. 4 is a schematic cross-sectional structural view of an aluminum alloy footbridge bridge structure of the present invention (after installation of decorative grille bars);
FIG. 5 is a schematic view of the structure of the bridge deck of the present invention;
FIG. 6 is a schematic view of a partially enlarged construction of the inter-fitting bridge deck of the present invention;
FIG. 7 is a schematic view of the structure of the lane landing board of the present invention;
FIG. 8 is a schematic view of a partially enlarged B-B configuration of the lane platform deck of FIG. 7 in cooperation with one another;
FIG. 9 is a schematic view of the configuration of the step tread of the present invention;
FIG. 10 is a schematic view of a step tread portion of an aluminum alloy footbridge of the present invention;
FIG. 11 is a schematic view of a partial enlarged structure of the stair tread structure A-A of FIG. 10;
FIG. 12 is a schematic view of the cross-section of the lane of the present invention;
FIG. 13 is a schematic view of the inventive stair run (without the decorative grills and stair run ceiling);
FIG. 14 is a schematic view of a partial enlarged structure of C-C of FIG. 12;
FIG. 15 is a schematic view of the lane rail of the present invention;
FIG. 16 is a schematic view of a partial structure of a stair railing of an aluminum alloy footbridge in a top view;
FIG. 17 is a schematic view of an aluminum alloy footbridge handrail structure of the present invention after installation
FIG. 18 is a schematic view of a partially enlarged structure of the drain D-D of FIG. 12;
FIG. 19 is a schematic diagram of the bridge construction of an aluminum alloy footbridge of the present invention;
fig. 20 is a schematic view of a bridge pier support structure according to the present invention;
FIG. 21 is a schematic top view of a steel structural bent cap of the present invention;
fig. 22 is a schematic top view of a steel structural bent cap of the present invention with two pairs of support steel tie plates on the top plate.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 22.
As shown in fig. 1-18, one embodiment of the present invention: an aluminum alloy pedestrian bridge comprises a supporting bridge pier, a bridge body structure and a ladder corridor structure which are made of aluminum alloy materials, a plurality of ladder path straight rods 3, a ladder path top longitudinal beam 64 which is arranged at the top of the ladder path straight rods 3, a ladder path ceiling 62 which is arranged at the upper part of the ladder path top longitudinal beam 64, a plurality of decorative grid rods 5 which are arranged at the two outer sides of the bridge body and the ladder path, a bridge body ceiling 61, and bridge body handrails and ladder path handrails which are respectively arranged at the two inner sides of the bridge body and the two inner sides of the ladder path, wherein the bridge body structure comprises at least two groups of truss body units 1 which are spliced by connecting plates and bolts, each group of truss body units 1 comprises a plurality of parallel transverse trusses and two side vertical trusses which are arranged at a certain distance, the two side vertical trusses are arranged perpendicular to the transverse trusses, and each side vertical truss comprises an upper chord 11, a lower chord 12, a plurality of side long vertical bars 13 and a side diagonal bar 14; the upper chord 11, the lower chord 12, the side long vertical rods 13 and a plurality of groups of transverse trusses are connected into truss body units through connecting plates and bolts, and the truss body units are spliced into a truss body 1 through connecting plates 151 and bolts 152; the bridge ceiling 61 is mounted on the upper portion of the side long vertical bar 13.
The transverse truss comprises an upper cross bar 16 and a lower cross bar 17, at least one straight bar 18 and a first inclined bar 19, wherein the two ends of the upper cross bar 16 and the lower cross bar 17 are respectively and vertically connected with the lower parts of the two corresponding side long vertical bars 13, and the positions close to the middle parts of the upper cross bar 16 and the lower cross bar 17; the upper cross bar 16 and the lower cross bar 17 are connected with the side long vertical bars 13 through bolts; the straight rod 18 and the first diagonal rod 19 are connected with the upper cross rod 17 and the lower cross rod 18 through bolts; the bridge deck 2 is secured to the upper rail 16 by bolts and deck plate securing plates 25.
The truss body unit 1 comprises a middle truss body, two left truss bodies and two right truss bodies, wherein the two left truss bodies and the two right truss bodies are respectively arranged corresponding to the left lane and the right lane, and the middle truss body, the two left truss bodies and the two right truss bodies are respectively connected through a connecting plate and a plurality of bolts.
The outer side and the inner side of the upper part of the plurality of side long vertical rods 13 of the two-side vertical truss are respectively provided with an outer side upper longitudinal beam 81 and an inner side upper longitudinal beam 84 through the same bolt; the outer side and the inner side of the lower part of the plurality of side long vertical rods 13 of the two-side vertical truss are respectively provided with an outer side lower longitudinal beam 82 and an inner side lower longitudinal beam 85 through the same bolt; the outer side upper longitudinal beam 81 and the outer side lower longitudinal beam 82 are provided with strip-shaped dovetail grooves 83 on the outer sides, the decorative grid rods 5 are matched with the dovetail grooves 83 through bolts and are arranged on the outer side upper longitudinal beam 81 and the outer side lower longitudinal beam 82 in parallel, the inner side upper longitudinal beam 84 is fixedly provided with bridge body top longitudinal beams 86 through bolts, a top cross rod 88 is arranged between the two bridge body top longitudinal beams 86, and the bridge body ceiling 61 is arranged on the top cross rod 88 through bolts.
As shown in fig. 4-6, the bridge structure of the invention comprises a bridge tread plate 2, wherein the cross section outline of the bridge tread plate 2 is rectangular, a straight separation rib is arranged in the bridge tread plate 2, a left groove 21 is arranged at the upper part of the left side of the splicing surface of the bridge tread plate 2, and a left bump 22 is arranged at the lower part; the upper part of the right side of the splicing surface of the bridge body step plate 2 is provided with a right bump 23, and the lower part is provided with a right groove 24 and a platform plate fixing plate 25; the left groove 21 is matched with the right bump 23, the left bump 22 is matched with the right groove 24, the left bump 22 is provided with a second bolt avoiding position 26 corresponding to the position of the platform plate fixing plate 25, and the upper surface of the bridge body pedal plate 2 is provided with an anti-slip edge 27; the bridge tread plate 2 is fixed to the cross truss by bolts and a platen fixing plate 25.
As shown in fig. 7 to 15, the inventive stair corridor structure comprises two stair supports 7 mounted on support piers 6, two stair stringers 31 respectively mounted on the upper parts of the two stair supports 7, a stair connecting beam 33 connecting the two stair stringers 31, a stair sub beam 32 mounted between the two stair stringers 31, a stair landing plate 34 mounted on the upper part of the stair stringers 31, stair steps 4 and ramps, wherein the upper and lower parts of the outer sides of the stair stringers 31 are provided with long bar bolt dovetail grooves 311, and the stair straight bars 3 are fixed on the stair stringers 31 by the cooperation of bolts and the bolt dovetail grooves 311; the side upper rod 38 and the side lower rod 39 are also arranged on the outer side of the stair straight rod 3, and the decorative grid rod 5 of the stair is fixed on the side upper rod 38 and the side lower rod 39 through bolts. The tread deck 34 has the same structure as the bridge tread deck 2.
The step 4 includes the flat panel 41, inclined panel 42 and straight board 43, the intersection department of inclined panel 42 and flat panel 41 is equipped with inclined upward open-ended last caulking groove 44 and step fixed plate 45, the intersection department of inclined panel 42 and straight board 43 is equipped with inclined downward open-ended lower caulking groove 46, step 4 is by last step 4 and next step 4 scarf joint respectively through last caulking groove 44 and lower caulking groove 46, step 4 is fixed on the lane longeron 31 through bolt and step fixed plate 45 cooperation, the upper surface of the flat panel 41 of step 4 is equipped with anti-skidding arris 40.
The stair rail longitudinal beam 31 comprises an aluminum alloy longitudinal beam body 30 with a rectangular cross section and a lap joint seat integrally arranged on the inner side of the aluminum alloy longitudinal beam body 30, wherein the lap joint seat comprises a horizontal bearing plate 35, a straight plate 36 integrally connected with the outer end of the horizontal bearing plate 35 and vertical downwards, and a supporting inclined plate 37 connected with the lower part of the straight plate 36; a top cross beam 63 is arranged between the two side tread top stringers 64, and tread roofs 62 are mounted on the top cross beam 63.
The upper caulking groove 44 of the stair tread 4 comprises two convex blocks and one caulking groove arranged between the two convex blocks, the lower caulking groove 46 comprises three convex blocks and two caulking grooves arranged between the three convex blocks, and the two convex blocks of the upper caulking groove 44 are respectively matched with the two caulking grooves between the three convex blocks of the lower caulking groove 46; the lower caulking groove 46 is concave at the position of the inclined panel 42 corresponding to the lower caulking groove, and a first bolt avoiding position 48 for accommodating the step fixing plate 45 and the fixing bolt is formed; the upper part of the straight plate 43 of the step 4 expands outwards and intersects with the plane plate 41 to form a sharp corner 49; the inner cavity of the stair tread 4 is also provided with a plurality of reinforcing ribs 47.
As shown in fig. 16, the decorative grid bar 5 of the present invention comprises a plurality of aluminum alloy section bars which are parallel and vertically arranged at two sides of the bridge body of the overpass and two sides of the stairway according to a certain distance, the two sides of the decorative grid bar 5 are provided with right angle grooves, the middle of the bottom of the right angle grooves is provided with a lamp groove 51, and the lamp groove 51 is internally provided with an LED lamp bar 52.
As shown in fig. 17, the bridge handrail and the stair handrail of the invention comprise an aluminum alloy upper beam 91, an aluminum alloy lower beam 92, a baffle body 90 fixedly arranged on the corresponding inner sides of the aluminum alloy upper beam 91 and the aluminum alloy lower beam 92, and a handrail 93 arranged on the upper part of the aluminum alloy upper beam 91, wherein two convex blocks 911 are arranged on the upper part of the aluminum alloy upper beam 91, and a clamping hook 912 is arranged on the inner sides of the tail ends of the two convex blocks 911; the handrail 93 comprises an arc-shaped buckle cover 931 at the upper part and clamping grooves 932 arranged at two sides of the lower part of the arc-shaped buckle cover 931, and a clasp 933 matched with the clamping hook 932 is arranged at one inner side edge of the two clamping grooves 932; the outer sides of the aluminum alloy upper beam 91 and the aluminum alloy lower beam 92 are provided with strip-shaped dovetail grooves 94, and the baffle body 90 comprises a glass clamp 95 and toughened laminated glass 96 inlaid in the clamping grooves of the glass clamp 95; the aluminum alloy upper cross beam 91 and the aluminum alloy lower cross beam 92 are respectively connected with one end of the Z-shaped connecting piece 6 through the matching of bolts and dovetail grooves 94, and the other end of the Z-shaped connecting piece 6 is connected with the side long vertical rod 13 of the bridge body or the stair straight rod 3 of the stair through bolts.
As shown in fig. 10 and 18, the upper part of the outer side upper longitudinal beam 81 of the present invention is provided with a bridge water collecting tank 87 along the bridge length direction, and the bridge water collecting tank 87 is provided with a water outlet; the bench upper longitudinal beam 41 is provided with a bench water collecting tank 88 along the length direction of the bench, the bench water collecting tank 88 is provided with a water outlet, the bridge water collecting tank 87 and the bench water collecting tank 88 are right-angle tanks made of aluminum profiles, the notch faces upwards, the bridge water collecting tank 87 is fixed on the upper chord 11 and the decorative grid 5 through bolts, the tops of the bench straight rods 3 are connected with the bench top longitudinal beams 64, and the bench water collecting tank 88 is fixed on the bench top longitudinal beams 64 and the decorative grid 5 through bolts. The upper end face and the lower end face of the decorative grid rod 5 are connected with an upper transverse sealing rod 53 and a lower transverse sealing rod.
As shown in fig. 19 to 22, the present invention comprises a steel structure bent cap a1 welded by steel plates, a steel pipe column a2, a bearing platform a3 and a pile foundation a4, the steel structure bent cap a1 comprises a rectangular box body arranged at the upper part and an inverted trapezoid box body arranged at the lower part of the rectangular box body, the steel structure bent cap a1 comprises a cavity surrounded by a side web a11, a middle web a12, a top plate a13, a bottom plate a14 and an end plate a15, a plurality of transverse beams welded in parallel and vertically in the inner cavity of the steel structure bent cap a1, the transverse beams comprise a side transverse beam a50, a middle transverse beam a51 and a left transverse beam a52 which is nearest to the middle transverse beam a51 at the left side and a right transverse beam a53 which is nearest to the middle transverse beam a51, the center diaphragm a51, the left diaphragm a52 and the right diaphragm a53 are pressed on the steel pipe column a2 from top to bottom, a first longitudinal beam a54 and a second longitudinal beam a55 which are welded in parallel and vertically in the inner cavity of the steel structure cover beam a1 are arranged between the left diaphragm a52 and the right diaphragm a53, and the cross section surrounded by the left diaphragm a52, the right diaphragm a53, the first longitudinal beam a54 and the second longitudinal beam a55 is square, and four corners of the square coincide with the pipe wall of the steel pipe column a 2. The first and second wales a54 and a55 are two plates welded in line between the left and middle wales a52 and a51, and between the middle and right wales a51 and a53, respectively. A pair of supporting steel backing plates a6 are arranged on two sides of the upper part of the top plate a13 of the steel structure bent cap a 1. Two pairs of supporting steel backing plates a6 are arranged on two sides of the upper part of the top plate a13 of the steel structure bent cap 1 at the intersection of the bridge body and the ladder way, and are respectively used for supporting the bridge body and the ladder way. And a plurality of reinforcing ribs a7 are welded at the connection positions of the steel pipe column a2 and the steel structure bent cap a 1.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims (7)

1. An aluminum alloy pedestrian overpass, which is characterized in that: comprises a supporting bridge pier, a bridge body structure and a stair corridor structure which are made of aluminum alloy materials, a plurality of stair corridor straight rods (3), a stair corridor top longitudinal beam (64) which is arranged at the top of the stair corridor straight rods (3), a stair corridor ceiling (62) which is arranged at the upper part of the stair corridor top longitudinal beam (64), a plurality of decorative grid rods (5) which are arranged at the two outer sides of the bridge body and the stair corridor, a bridge body ceiling (61), and a bridge body handrail and a stair corridor handrail which are respectively arranged at the two inner sides of the bridge body and the two inner sides of the stair corridor,
the bridge body structure comprises at least two groups of truss body units spliced by connecting plates and bolts, each group of truss body units comprises a plurality of groups of parallel transverse trusses and two sides of vertical trusses, the two sides of vertical trusses are arranged vertically to the transverse trusses, and each side of vertical trusses respectively comprises an upper chord member (11), a lower chord member (12), a plurality of side long vertical rods (13) and side inclined rods (14); the upper chord member (11), the lower chord member (12), the side long vertical rods (13) and a plurality of groups of transverse trusses are connected into truss body units through connecting plates and bolts, and a plurality of truss body units are spliced into a truss body (1) through connecting plates (151) and bolts (152); the bridge ceiling (61) is arranged at the upper part of the side long vertical rod (13);
the bridge structure comprises a bridge tread (2), wherein the cross section outline of the bridge tread (2) is rectangular, straight ribs are arranged in the bridge tread (2), a left groove (21) is formed in the upper part of the left side of a splicing surface of the bridge tread (2), and a left bump (22) is arranged at the lower part of the splicing surface; the upper part of the right side of the splicing surface of the bridge body tread (2) is provided with a right bump (23), and the lower part is provided with a right groove (24) and a platform plate fixing plate (25); the left groove (21) is matched with the right protruding block (23), the left protruding block (22) is matched with the right groove (24), the left protruding block (22) is provided with a second bolt avoiding position (26) corresponding to the platform plate fixing plate (25), and the upper surface of the bridge body pedal (2) is provided with an anti-slip edge; the bridge body step plate (2) is fixed on the transverse truss in a matched manner through bolts and the platform plate fixing plate (25);
the stair corridor structure comprises two stair corridor supports (7) arranged on supporting piers, two stair corridor longitudinal beams (31) respectively arranged on the upper parts of the two stair corridor supports (7), a stair corridor connecting beam (33) for connecting the two stair corridor longitudinal beams (31), a stair corridor secondary beam (32) arranged between the two stair corridor longitudinal beams (31), a stair corridor platform plate (34) arranged on the upper parts of the stair corridor longitudinal beams (31), stair steps (4) and a ramp, wherein long strip-shaped bolt dovetail grooves are formed in the upper parts and the lower parts of the outer sides of the stair corridor longitudinal beams (31), and the stair corridor straight rods (3) are fixed on the stair corridor longitudinal beams (31) in a matched mode through bolts and the bolt dovetail grooves; the outside of the stair path straight rod (3) is also provided with a side upper rod (38) and a side lower rod (39), and the decorative grid rod (5) of the stair path is fixed on the side upper rod (38) and the side lower rod (39) through bolts;
the stair step (4) comprises a plane plate (41), an inclined plate (42) and a straight plate (43), wherein an upper caulking groove (44) and a stair fixing plate (45) which are obliquely opened upwards are formed in the intersection of the inclined plate (42) and the plane plate (41), a lower caulking groove (46) which is obliquely opened downwards is formed in the intersection of the inclined plate (42) and the straight plate (43), the stair step (4) is respectively in caulking joint with the upper stair step (4) and the lower stair step (4) through the upper caulking groove (44) and the lower caulking groove (46), the stair step (4) is fixed on a stair rail (31) through the cooperation of bolts and the stair fixing plate (45), and an anti-slip edge is arranged on the upper surface of the plane plate (41) of the stair step (4);
the decorative grid rod (5) comprises a plurality of aluminum alloy section bars which are parallel at a certain distance and are vertically arranged at two sides of the overpass body and two sides of the stairway, right-angle grooves are formed in two sides of the decorative grid rod (5), a lamp groove (51) is formed in the middle of the bottom of the right-angle grooves, and LED lamp strips (52) are arranged in the lamp groove (51);
the truss body unit comprises a middle group of truss bodies, a left group of truss bodies and a right group of truss bodies, wherein the left group of truss bodies and the right group of truss bodies are respectively arranged corresponding to the left lane and the right lane, and the middle group of truss bodies, the left group of truss bodies and the right group of truss bodies are respectively connected with the plurality of bolts through connecting plates;
the stair tread longitudinal beam (31) comprises an aluminum alloy longitudinal beam body (30) with a rectangular cross section and a lap joint seat integrally arranged on the inner side of the aluminum alloy longitudinal beam body (30), wherein the lap joint seat comprises a horizontal bearing plate (35), a straight plate (36) integrally connected with the outer end of the horizontal bearing plate (35) and vertical downwards, and a support inclined plate (37) connected with the lower part of the straight plate (36); a top cross beam (63) is arranged between the two side bench top longitudinal beams (64), and a bench roof (62) is arranged on the top cross beam (63);
the upper caulking groove (44) of the stair tread (4) comprises two convex blocks and one caulking groove arranged between the two convex blocks, the lower caulking groove (46) comprises three convex blocks and two caulking grooves arranged between the three convex blocks, and the two convex blocks of the upper caulking groove (44) are respectively matched with the two caulking grooves between the three convex blocks of the lower caulking groove (46); the lower caulking groove (46) is concave at the position of the inclined panel (42) corresponding to the lower caulking groove, and a first bolt avoidance position (48) for accommodating the step fixing plate (45) and the fixing bolt is formed; the upper part of the straight plate (43) of the step (4) is outwards expanded and intersected with the plane plate (41) to form a sharp corner (49); the inner cavity of the stair step (4) is also provided with a plurality of reinforcing ribs (47).
2. An aluminum alloy pedestrian overpass as in claim 1, wherein: the bridge body handrail and the stair railing comprise an aluminum alloy upper beam (91) and an aluminum alloy lower beam (92), a baffle body (90) fixedly arranged on the corresponding inner sides of the aluminum alloy upper beam (91) and the aluminum alloy lower beam (92), and a handrail component (93) arranged on the upper part of the aluminum alloy upper beam (91), wherein two convex blocks (911) are arranged on the upper part of the aluminum alloy upper beam (91), and a clamping hook (912) is arranged on the inner sides of the tail ends of the two convex blocks (911); the handrail component (93) comprises an arc-shaped buckle cover (931) at the upper part and clamping grooves (932) arranged at two sides of the lower part of the arc-shaped buckle cover (931), and a clasp (933) matched with the clasp (912) is arranged at one inner side edge of the two clamping grooves (932); the outer sides of the aluminum alloy upper cross beam (91) and the aluminum alloy lower cross beam (92) are provided with strip-shaped dovetail grooves, and the baffle body (90) comprises a glass clamp (95) and toughened laminated glass (96) inlaid in the clamping grooves of the glass clamp (95); the aluminum alloy upper cross beam (91) and the aluminum alloy lower cross beam (92) are respectively connected with one end of the Z-shaped connecting piece (6) through the matching of bolts and dovetail grooves, and the other end of the Z-shaped connecting piece (6) is connected with a side long vertical rod (13) of the bridge body or a stair straight rod (3) of the stair through bolts.
3. An aluminum alloy pedestrian overpass as in claim 1, wherein: the transverse truss comprises an upper cross rod (16) and a lower cross rod (17) which are respectively and vertically connected with the lower parts of the two corresponding side long vertical rods (13) and the position close to the middle part, at least one straight rod (18) and a first inclined rod (19) which are connected with the middle parts of the upper cross rod (16) and the lower cross rod (17); the upper cross rod (16) and the lower cross rod (17) are connected with the side long vertical rod (13) through bolts; the straight rod (18) and the first diagonal rod (19) are connected with the upper cross rod (16) and the lower cross rod (17) through bolts; the bridge tread (2) is fixed on the upper cross bar (16) through the cooperation of bolts and the platform plate fixing plate (25).
4. An aluminum alloy pedestrian overpass as in claim 1, wherein: the outer side and the inner side of the upper parts of the plurality of side long vertical rods (13) of the two-side vertical trusses are respectively provided with an outer side upper longitudinal beam (81) and an inner side upper longitudinal beam (84) through the same bolt; the outer side and the inner side of the lower parts of the plurality of side long vertical rods (13) of the two-side vertical trusses are respectively provided with an outer side sill (82) and an inner side sill (85) through the same bolt; the outer side upper longitudinal beam (81) and the outer side lower longitudinal beam (82) are provided with rectangular dovetail grooves on the outer side, the decorative grid rods (5) are arranged on the outer side upper longitudinal beam (81) and the outer side lower longitudinal beam (82) in parallel through the cooperation of bolts and the dovetail grooves, the inner side upper longitudinal beam (84) is fixedly provided with a bridge body top longitudinal beam (86) through bolts, a top cross rod is arranged between the two bridge body top longitudinal beams (86), and the bridge body ceiling (61) is arranged on the top cross rod through bolts.
5. An aluminum alloy pedestrian overpass as in claim 1, wherein: the upper end face and the lower end face of the decorative grid rod (5) are connected with an upper transverse sealing rod (53) and a lower transverse sealing rod.
6. An aluminum alloy pedestrian overpass as recited in claim 4, wherein: the upper part of the outer side upper longitudinal beam (81) is provided with a bridge body water collecting tank (87) along the length direction of the bridge body, and the bridge body water collecting tank (87) is provided with a water outlet; the stair path longitudinal beam (31) is provided with a stair path water collecting groove (88) along the length direction of the stair path, the stair path water collecting groove (88) is provided with a water outlet, the bridge body water collecting groove (87) and the stair path water collecting groove (88) are right-angle grooves made of aluminum profiles, the notch faces upwards, the bridge body water collecting groove (87) is fixed on an upper chord member (11) and a decorative grid member (5) through bolts, the tops of a plurality of stair path straight rods (3) are connected with stair path top longitudinal beams (64), and the stair path water collecting groove (88) is fixed on the stair path top longitudinal beams (64) and the decorative grid member (5) through bolts.
7. An aluminum alloy pedestrian overpass as in claim 1, wherein: the structure of the stair tread plate (34) is the same as that of the bridge tread plate (2).
CN202111285047.3A 2021-11-01 2021-11-01 Aluminum alloy pedestrian overpass Active CN113818325B (en)

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CN101906857A (en) * 2010-08-09 2010-12-08 湖南省金为型材有限公司 Connecting piece used for assembling guardrail cross beams and guardrail upright posts
KR101705071B1 (en) * 2016-05-26 2017-02-13 (주)태평양기술산업 Bridge using intergrated upperstructurre and girder for bridge and the construction method therefor
CN206219980U (en) * 2016-08-30 2017-06-06 中铁大桥局集团有限公司 A kind of overpass drainage arrangement
CN111236041A (en) * 2018-11-28 2020-06-05 贵阳铝镁设计研究院有限公司 Aluminum alloy structure pedestrian bridge ladder way canopy connection structure
CN211171556U (en) * 2019-10-11 2020-08-04 中铝南铝（福建）铝结构技术开发有限公司 Aluminum alloy pedestrian bridge
CN112458886A (en) * 2020-12-18 2021-03-09 南南铝工程有限责任公司 Half calabash shape aluminum alloy pedestrian bridge connection structure
CN112458887A (en) * 2020-12-18 2021-03-09 南南铝工程有限责任公司 Aluminum alloy pedestrian overpass ladder way connection structure

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101906857A (en) * 2010-08-09 2010-12-08 湖南省金为型材有限公司 Connecting piece used for assembling guardrail cross beams and guardrail upright posts
KR101705071B1 (en) * 2016-05-26 2017-02-13 (주)태평양기술산업 Bridge using intergrated upperstructurre and girder for bridge and the construction method therefor
CN206219980U (en) * 2016-08-30 2017-06-06 中铁大桥局集团有限公司 A kind of overpass drainage arrangement
CN111236041A (en) * 2018-11-28 2020-06-05 贵阳铝镁设计研究院有限公司 Aluminum alloy structure pedestrian bridge ladder way canopy connection structure
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CN112458886A (en) * 2020-12-18 2021-03-09 南南铝工程有限责任公司 Half calabash shape aluminum alloy pedestrian bridge connection structure
CN112458887A (en) * 2020-12-18 2021-03-09 南南铝工程有限责任公司 Aluminum alloy pedestrian overpass ladder way connection structure

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