CN109853359A - A kind of large span aluminum alloy pedestrian bridge lateral support system with rain cover - Google Patents
A kind of large span aluminum alloy pedestrian bridge lateral support system with rain cover Download PDFInfo
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- CN109853359A CN109853359A CN201910020298.5A CN201910020298A CN109853359A CN 109853359 A CN109853359 A CN 109853359A CN 201910020298 A CN201910020298 A CN 201910020298A CN 109853359 A CN109853359 A CN 109853359A
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- bridge
- rain cover
- aluminum alloy
- lateral support
- truss
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Abstract
The large span aluminum alloy pedestrian bridge lateral support system with rain cover that the invention discloses a kind of, it is to be reliably connected large span aluminum alloy pedestrian bridge longitudinal direction parallel chord truss by lateral support system, lateral support system by being arranged forming positioned at the rain cover component on the vertical web member top of longitudinal parallel chord truss and the bridge floor jack truss of lower part for formation simultaneously.For the present invention on the basis of original half-through bridge floor jack truss, increasing top rain cover component by transverse support bar ensure that main bridge monolithic stability, while effectively improve main spanning diameter.Due to adding for transverse support bar, bridge floor jack truss is without considering that the lateral support for top boom acts on, only consider bearing bridge area load function, therefore the height of jack truss can be significantly reduced under Long span, i.e., reduce the overall cost of ladder access system sideways through pedestrian's street crossing climb altitude is reduced.
Description
Technical field
The large span aluminum alloy pedestrian bridge lateral support system with rain cover that the present invention relates to a kind of, in particular to one kind are answered
For large span (> 35m) aluminum alloy pedestrian bridge under the frequent weather conditions of rain and snow weather.
Background technique
Aluminium alloy has good corrosion resistance, and color is abundant and is full of texture, with the continuous propulsion of urbanization, city
Overpass demand is growing day by day, and aluminium alloy extrusions is applied to overpass and has become a kind of trend, does not evade aluminium alloy bullet
The property lower weakness of modulus, while the main bridge deflection of main bridge serviceability limit stage is controlled, main bridge generally uses parallel chord truss
Formula structure usually guarantees the stabilization of main bridge top boom, in aluminium alloy using higher half-through transverse direction jack truss and bridge floor bed board
It is widely used in the middle-size and small-size across footpath of overpass, but in the aluminum alloy pedestrian bridge for large span (> 35m), it is higher
Half-through transverse direction jack truss not only increase the climb altitude of pedestrian, also increase the overall cost of main bridge and ladder access, therefore need
Promotion Transformation is carried out to large span aluminum alloy pedestrian bridge lateral support system, to improve the warp of large span aluminum alloy pedestrian bridge
Ji property and applicability.
Summary of the invention
The object of the present invention is to provide a kind of simple and practical and safe and reliable aluminum alloy pedestrian bridges laterally to prop up
Support system solves the problems, such as large span aluminum alloy pedestrian bridge monolithic stability outstanding first, is guaranteeing the reliable premise of bridge security
Under, this kind of bridge is further promoted in the usage comfort in large span field, while extending it under the frequent weather conditions of sleet
Use.
Technical scheme is as follows: a kind of large span aluminum alloy pedestrian bridge cross-brace with rain cover of the invention
System, on the basis of the bridge floor jack truss of original half-through, increase top rain cover component, rain cover component include transverse support bar,
Roof drainage bar and rain cover stringer can be promoted the stability of main bridge top boom, be reduced simultaneously due to the presence of transverse support bar
The height of bridge floor jack truss brings bigger headroom for main bridge cross section, and pedestrian is avoided to generate constriction.Due to bridge floor jack truss
The reduction of height will reduce the overall cost of ladder access system from side.In addition, the setting of top awning component, increases for overline bridge
The function of blocking sleet, enriches the appearance of main bridge.
Wherein, each interval of main bridge truss is configured, and spacing 3m~4.5m is arranged, and lateral support system width is 3.5m
~4.5m, in this parameter section, it will bring good economy.Jack truss height can be reduced to 1m~1.5m, and main bridge is net
Under the conditions of empty 5m, it is ensured that ladder access climb altitude controls within 6.5m, uses convenient for pedestrian, while reducing ladder access system
Overall cost.
Further, bridge floor jack truss include jack truss top boom, jack truss web member and jack truss lower boom composition, wherein
Jack truss top boom is attached by bolt and longitudinal vertical web member of parallel chord truss, and jack truss internal rod then passes through bilateral
Cleat plate is connected, clamping plate thickness 12mm, diameter of bolt 16mm, wherein jack truss lower boom is that double quarter bend combinations are cut
Face, end by 4 to wear bolt with longitudinal direction the vertical web member of parallel chord truss be reliably connected.It is applied using complete assembling
Work, node quality of connection is easy to control, while also shortening the construction period, it is longitudinal can to form main bridge by adjusting jack truss height
Drainage grade, it is adaptable.
Further, rain cover component includes transverse support bar, roof drainage bar and rain cover stringer, wherein transverse support bar
End plate (16mm is thick) is attached by bolt and longitudinal parallel chord truss top boom, that is, main bridge top boom；The setting of roof drainage bar
Spacing 1.5m~2m forms 1%~2% double drainage gradient by mechanical symmetrical bending, and is existed by L70x70x10 aluminum corner brace
Rod piece two sides carry out at 3 points and are bolted, and draining bar two sides cantilever span is 50m~800mm；Rain cover stringer is elongated along longitudinal direction to be set
It sets, and is reliably connected by L70x70x10 aluminum corner brace with transverse support bar.It roof drainage bar setting interval flexibly, can be upper
Side's arrangement glass roofing or aluminium sheet roofing, form roof drainage system, add the function of blocking sleet for overline bridge, enrich master
The appearance of bridge.
Further, current direction is laid with aluminum alloy bridge panel, and bridge floor lateral two to bridge floor jack truss top boom along longitudinal direction
End, is arranged water-stop rod, and water-stop rod is attached with longitudinal vertical web member of parallel chord truss by aluminum corner brace.By to jack truss height
Adjustment, forms main bridge longitudinal drainage route, at the same time by the setting of water-stop rod, forms main deck functional in organized water drainage.
Further, except the end aluminium sheet of transverse support bar and jack truss top boom and rod piece pass through fillet weld (hf=
Outside 6mm) being attached, the connection of remaining rod piece is all made of A2-70 stainless steel bolt, constructs simple and direct.All rod pieces are all made of high-strength
Novel aluminum alloy material 6082-T6, good mechanical properties are spent, corrosion resistance protrudes.
By adopting the above-described technical solution, the present invention on the basis of original bridge floor jack truss, increases top rain cover component,
By transverse support bar, main bridge monolithic stability ensure that, while effectively improving main spanning diameter.Main bridge monolithic stability is guaranteed
Under the premise of, the effect of bridge floor jack truss becomes: only considering bearing bridge area load, it is not necessary to provide the lateral support function for top boom
Can, therefore the height of jack truss can be significantly reduced under Long span, i.e., pedestrian's street crossing climb altitude is reduced from side, also just dropped
The low overall cost of ladder access system；The addition of rain cover component provides the function of blocking sleet for overline bridge, enriches main bridge
Appearance.So the present invention is compared with prior art, changes monolithic stability resolving ideas, can effectively solve main bridge monolithic stability and ask
Topic, while the convenience that overline bridge uses is improved, and by increasing Roof system, expanded large span aluminum alloy pedestrian bridge and answered
Use range；By improving node connection type, so that structure stress is definitely, it is more convenient to construct；Green high intensity aluminium closes
Golden material application, then bring good mechanical property and corrosion resistance outstanding, and it is numerous and complicated in sleet to be more conducive to overline bridge
It is applied under weather conditions.
Detailed description of the invention
Fig. 1 is the large span aluminum alloy pedestrian bridge lateral support system with rain cover；
Fig. 2 is the N1 connection detail in Fig. 1；
Fig. 3 is the N2 connection detail in Fig. 1；
Fig. 4 is the A-A sectional view in Fig. 3；
Fig. 5 is the N3 connection detail in Fig. 1；
Fig. 6 is the B-B sectional view in Fig. 5；
Fig. 7 is the N4 connection detail in Fig. 1；
Fig. 8 is the C-C sectional view in Fig. 7；
Fig. 9 is the N5 connection detail in Fig. 1；
Figure 10 is the D-D sectional view in Fig. 9.
Description of symbols: 1- transverse support bar, 2- roof drainage bar, 3- rain cover stringer, the main bridge top boom of 4-, 5- are vertical
To the vertical web member of parallel chord truss, 6- jack truss top boom, 7- jack truss diagonal web member, 8- jack truss erects web member, under 9- jack truss
Chord member, 10- aluminum alloy bridge panel, 11- water-stop rod, 12- alclad, the end 13- aluminium sheet, 14- aluminum corner brace, 15- stainless steel self tapping
Nail, 16- stainless steel sunk screw.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples, but not as any limitation of the invention.
Embodiment 1:
Please refer to Fig. 1-Figure 10.Essential implementation of the invention is as follows:
First: main bridge truss width is set as 4.0m, and main bridge internode is 3.5m, i.e. large span aluminium alloy people's row with rain cover
The longitudinally arranged spacing of overline bridge lateral support system is 3.5m.
Second: the main bridge both ends starting point height of bridge floor jack truss is set as 1m and (is accordingly mentioned according to drainage grade work along longitudinal direction
Rise), guarantee that transversely deforming amount meets code requirement；6 top surface of jack truss top boom to 1 floor height of transverse support bar is 3.2m,
Therefore main bridge truss height is then 4.2m, the aluminum alloy pedestrian bridge suitable for 35m~40m span.
Third: the every 3.5m of transverse support bar 1 setting in rain cover component ensure that and count outside main 4 plane of bridge top boom together
Calculation length is 3.5m, and it is sufficiently stable more than needed to guarantee that main bridge possesses；Spacing 1.7m is arranged in roof drainage bar 2, not only economical and be conducive to
Roofing normal mounting forms the 1% double drainage gradient, 2 two sides cantilever span of roof drainage bar by mechanical symmetrical bending
For 600mm, guarantees roofing functional in organized water drainage, be not easy to float and become owner of bridge channel, extend the application range of aluminium alloy overline bridge.
4th: except the end aluminium sheet 13 of transverse support bar 1 and jack truss top boom 6 and rod piece pass through fillet weld (hf=
Outside 6mm) being attached, the connection of remaining rod piece is all made of A2-70 stainless steel bolt, constructs simple and direct.All rod pieces are all made of high-strength
Novel aluminum alloy material 6082-T6, good mechanical properties are spent, corrosion resistance protrudes.
The present invention effectively solves the problems, such as the monolithic stability of large span aluminum alloy pedestrian bridge, at the same improve use it is convenient
Property, by increasing Roof system, expand large span aluminum alloy pedestrian bridge application range；By improving node connection type,
So that structure stress is definitely, it is more convenient to construct；Green high-strength aluminum alloy material application, brings good mechanical property
It can be more conducive to overline bridge with corrosion resistance outstanding and be applied under the numerous and complicated weather conditions of sleet.
It is above specific application example of the invention, there are other embodiments of the invention, all to use equivalent replacement
Or the technical solution that equivalent transformation is formed, it all falls within protection scope of the presently claimed invention.
Claims (9)
1. a kind of large span aluminum alloy pedestrian bridge lateral support system with rain cover, it is characterised in that: large span aluminium alloy people
Row overline bridge longitudinal direction parallel chord truss is reliably connected by lateral support system, and lateral support system by being arranged formation simultaneously
Positioned at the rain cover component on the vertical web member of longitudinal parallel chord truss (5) top and the bridge floor jack truss composition of lower part.
2. the large span aluminum alloy pedestrian bridge lateral support system according to claim 1 with rain cover, it is characterised in that:
3m~4.5m is divided between the setting of the lateral support system, lateral support system width is 3.5m~4.5m.
3. the large span aluminum alloy pedestrian bridge lateral support system according to claim 2 with rain cover, it is characterised in that:
The rain cover component includes transverse support bar (1), the rain cover stringer (3) of roof drainage bar (2) and support between, cross
End aluminium sheet (13) are equipped with to the both ends of support rod (1), which is carried out by bolt and main bridge top boom (4)
Connection, main bridge top boom (4) are fixed on the vertical web member of longitudinal parallel chord truss (5) upper end；Spacing is arranged in roof drainage bar (2)
1.5m~2m forms 1%~2% double drainage gradient by mechanical symmetrical bending, and by aluminum corner brace (14) rod piece two sides into
3 points of row are bolted, and roof drainage bar (2) two sides cantilever span is 500m~800mm；Rain cover stringer (3) is elongated along longitudinal direction to be set
It sets, and is reliably connected by aluminum corner brace (14) with transverse support bar (1).
4. the large span aluminum alloy pedestrian bridge lateral support system according to claim 3 with rain cover, it is characterised in that:
The bridge floor jack truss erects web member (8) and jack truss lower boom by jack truss top boom (6), jack truss diagonal web member (7), jack truss
(9) it forms, wherein jack truss top boom (6) is attached by bolt and longitudinal vertical web member of parallel chord truss (5), jack truss
Internal rod is then connected by the alclad of bilateral (12) with bolt, alclad (12) thickness 12mm, and the diameter of bolt is
16mm；Wherein, jack truss lower boom (9) is double quarter bend compound sections, in end by 4 to wearing bolt and longitudinal parallel chords purlin
The vertical web member of frame (5) is reliably connected.
5. the large span aluminum alloy pedestrian bridge lateral support system according to claim 4 with rain cover, it is characterised in that:
The bridge floor jack truss top boom (6) top surface to transverse support bar (1) floor height is 2.8m~3.5m.
6. the large span aluminum alloy pedestrian bridge lateral support system according to claim 4 with rain cover, it is characterised in that:
Current direction is laid with aluminum alloy bridge panel (10) to the bridge floor jack truss top boom (6) along longitudinal direction, and bridge floor transverse ends are arranged
Water-stop rod (11), the aluminum corner brace (14) that water-stop rod (11) is arranged with longitudinal vertical web member of parallel chord truss (5) by two sides are connected
It connects.
7. the large span aluminum alloy pedestrian bridge lateral support system according to claim 3 with rain cover, it is characterised in that:
Transverse support bar (1) is attached with end aluminium sheet (13) by fillet weld, attachment weld thickness h f=6mm.
8. the large span aluminum alloy pedestrian bridge cross-brace system according to any one of claims 1-7 with rain cover
System, it is characterised in that: bolt needed for rod piece connects is all made of A2-70 stainless steel bolt.
9. the large span aluminum alloy pedestrian bridge cross-brace system according to any one of claims 1-7 with rain cover
System, it is characterised in that: all rod pieces are all made of high-strength novel aluminum alloy materials 6082-T6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910020298.5A CN109853359A (en) | 2019-01-09 | 2019-01-09 | A kind of large span aluminum alloy pedestrian bridge lateral support system with rain cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910020298.5A CN109853359A (en) | 2019-01-09 | 2019-01-09 | A kind of large span aluminum alloy pedestrian bridge lateral support system with rain cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109853359A true CN109853359A (en) | 2019-06-07 |
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ID=66894293
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910020298.5A Pending CN109853359A (en) | 2019-01-09 | 2019-01-09 | A kind of large span aluminum alloy pedestrian bridge lateral support system with rain cover |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1161730A (en) * | 1997-08-15 | 1999-03-05 | Nippon Light Metal Co Ltd | Bridge |
| US20120255255A1 (en) * | 2011-04-11 | 2012-10-11 | Juan Lin | Aluminium alloy truss structure |
| CN102966032A (en) * | 2012-12-11 | 2013-03-13 | 龙口丛林中德车体系统工程有限公司 | Structural member of aluminum alloy passenger foot-bridge |
| CN108004906A (en) * | 2017-12-30 | 2018-05-08 | 贵阳铝镁设计研究院有限公司 | A kind of cross aluminum alloy pedestrian bridge |
-
2019
- 2019-01-09 CN CN201910020298.5A patent/CN109853359A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1161730A (en) * | 1997-08-15 | 1999-03-05 | Nippon Light Metal Co Ltd | Bridge |
| US20120255255A1 (en) * | 2011-04-11 | 2012-10-11 | Juan Lin | Aluminium alloy truss structure |
| CN102966032A (en) * | 2012-12-11 | 2013-03-13 | 龙口丛林中德车体系统工程有限公司 | Structural member of aluminum alloy passenger foot-bridge |
| CN108004906A (en) * | 2017-12-30 | 2018-05-08 | 贵阳铝镁设计研究院有限公司 | A kind of cross aluminum alloy pedestrian bridge |
Non-Patent Citations (2)
| Title |
|---|
| 于瑾佳等: "《房屋建筑构造》", 31 March 2018 * |
| 孙艳丽等: "铝合金人行天桥设计及结构分析", 《湖南交通科技》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Application publication date: 20190607 |