CN207619809U - A kind of Long span mountable steel bridge structure - Google Patents
A kind of Long span mountable steel bridge structure Download PDFInfo
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- CN207619809U CN207619809U CN201721677261.2U CN201721677261U CN207619809U CN 207619809 U CN207619809 U CN 207619809U CN 201721677261 U CN201721677261 U CN 201721677261U CN 207619809 U CN207619809 U CN 207619809U
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Abstract
The utility model discloses a kind of Long span mountable steel bridge structures, belong to bridge construction field, it is intended to provide a kind of installation and dismounting that can facilitate crossbeam, to improve the Long span mountable steel bridge structure of working efficiency, it is characterized in that, a kind of Long span mountable steel bridge structure, including two bridge piers, two main bridge truss being erected between two bridge piers, host bridge truss is mutually spliced to form by several sections truss element triangular in shape, it is provided with top boom on the upside of the adjacent truss element, it is arranged in parallel with several crossbeams between two host bridge truss, several floorings are equipped on the crossbeam；Vertical web member is vertically and fixedly provided in the middle part of the truss element, the both ends of the crossbeam are fixedly connected with the corresponding vertical web member on two main bridge truss is located at.
Description
Technical field
The utility model is related to a kind of bridge construction structure, more particularly to a kind of Long span mountable steel bridge structure.
Background technology
Mountable steel bridge is a kind of decomposable temporary bridge structure, and, speed of application strong with span ability be fast, carrying
The features such as ability is strong, durability, finds broad application in the occasion for requiring fast construction, especially in emergency rescue, assembly
Formula steel bridge plays particularly important effect.Mountable steel bridge well known to the country has " 321 " steel bridge and ZB-200 shaped steel bridges at present,
Maximum span is about 63m；ZB-200 shaped steel bridges are the improved structure of " 321 " steel bridge, and maximum span is about 69m.
As shown in Figure of description 4, Long span mountable steel bridge in the prior art, according to different across footpaths end of the bridge with
Interim bridge pier 1 is set at bridge tail, and the assembling of main bridge truss 2 is erected between two bridge piers 1.When being laid with floorings 4, need
The crossbeam 31 for accepting floorings 4 is installed in the junction of two adjacent truss elements 21 in advance, due to truss element 21
Between operating space it is smaller, and required precision is higher when being installed to crossbeam 31 using high-strength bolt so that crossbeam 31
It is inconvenient in the extreme when installation is with dismounting, so that working efficiency reduces.
Utility model content
The purpose of this utility model is to provide a kind of Long span mountable steel bridge structure, has the installation that can facilitate crossbeam
With dismounting, to improve the effect of working efficiency.
The above-mentioned technical purpose of the utility model technical scheme is that：
A kind of Long span mountable steel bridge structure, including two bridge piers, two main bridge purlins being erected between two bridge piers
Frame, host bridge truss are mutually spliced to form by several sections truss element triangular in shape, the adjacent truss element it is upper
Side is provided with top boom, and several crossbeams are arranged in parallel between two host bridge truss, several bridges are equipped on the crossbeam
Panel；
Be vertically and fixedly provided with vertical web member in the middle part of the truss element, the both ends of the crossbeam be located at two main bridge truss
The upper corresponding vertical web member is fixedly connected.
By using above-mentioned technical proposal, when steel bridge is installed, due to having between vertical web member and the side wall of truss element
There is larger operating space, its required precision is relatively low when crossbeam to be installed on vertical web member, and when adjustment installation site
It is more convenient, to improve work efficiency；Vertical web member can also add the structural strength of entire truss element simultaneously
By force so that entire steel bridge is more stablized.
Further, the length of the floorings is 3.048m, 200 type of crossbeam model.
By using above-mentioned technical proposal, floorings are designed as 3.048m and are to lead in industry using 200 type crossbeams
With specification, applicability is stronger with interchangeability, also more convenient when being laid with.
Further, the vertical web member is made of corrugated sheet, the side plate being fixedly connected with corrugated sheet both sides, described in two pieces
Several lightening holes are evenly arranged on side plate.
By using above-mentioned technical proposal, the section of corrugated sheet can buffer its impact loaded in ripple type, together
When its when reaching engineering strength compared with common shaped steel, additionally it is possible to reduce the dosage of steel, and reduce truss element
Dead weight, to save cost and facilitate its installation and transport；Lightening hole can further mitigate the weight of vertical web member, from
And so that entire truss element is more easily convenient in transporting and hoisting.
Further, the inside staggered relative of two side plates is provided with several L-shaped hooks, and the L-shaped hook includes
Horizontal segment and with the integrally formed vertical section of horizontal segment；
Between two blocks of side plates be equipped with stiffener, the stiffener by several interconnecting pieces and several support portions one at
Type, several interconnecting pieces are hung in L-shaped hook.
By using above-mentioned technical proposal, stiffener can play a supporting role to two blocks of side plates, strengthen between side plate
Stable connection, to further improve the structural strength of vertical web member.
Further, arc-shaped convex is equipped on the inside of the vertical section, the interconnecting piece is clipped in arc-shaped convex and level
Between section.
By using above-mentioned technical proposal, arc-shaped convex can play position-limiting action to stiffener, and stiffener is made to be not easy
It falls off out of L-shaped hook.
Further, the bridge pier is equipped with a pair of of bracket, and the bracket includes two diagonal braces disposed in parallel, two institutes
It states diagonal brace one end to fix with bridge pier, the other end is fixed with two main bridge truss respectively.
By using above-mentioned technical proposal, bracket can share the dead weight that main bridge truss generates, and play the role of support, from
And keep winner's bridge truss more steady in load-bearing, safety coefficient higher.
Further, several bracing pieces are staggeredly equipped between the diagonal brace.
By using above-mentioned technical proposal, bracing piece can enhance the structural strength of entire cross-brace device, so that whole
A arch bridge structure is more stablized, and further enhances the degree that is connected firmly between two arch ribs, so that entire arch bridge knot
Structure is more stablized.
Further, the surface of the truss element is equipped with the rust-proof coating being made of acrylic polyurethane finish paint.
By using above-mentioned technical proposal, acrylic polyurethane finish paint is a kind of bi-component acrylic polyurethane coating, dress
The good, excellent weather resistance and hard of decorations property, paint film is hard and bright plentiful, there is the performances such as preferable wear-resisting, sour, water, oil, heat, so that
Rust-proof coating can preferably protect the surface of truss element, while can also play the role of decoration.
In conclusion the utility model has the advantages that：
1. by the setting of vertical web member, the fulcrum of installation can be provided for crossbeam so that crossbeam is in mounting and adjusting position
When required precision it is relatively low, so as to accelerate the laying of steel bridge, improve work efficiency；
2. by setting the length of floorings to 3.048m, its applicability and interchangeability can be enhanced, to meet row
The size requirement that most of steel bridges are laid in the industry；
3. by the setting of stiffener, can play the role of reinforcing support, to make vertical web member disclosure satisfy that engineering
The requirement of intensity.
Description of the drawings
Fig. 1 is in the present embodiment for embodying whole structural schematic diagram；
Fig. 2 is the structural schematic diagram for embodying truss element in the present embodiment；
Fig. 3 is the portions A enlarged drawing in Fig. 2, the structural schematic diagram for embodying vertical web member；
Fig. 4 is Long span mountable steel bridge structural schematic diagram in the prior art.
In figure, 1, bridge pier；2, main bridge truss；21, truss element；211, English truss；22, top boom；3, mounting assembly；
31, crossbeam；32, vertical web member；321, corrugated sheet；322, stiffener；3221, interconnecting piece；3222, support portion；323, side plate；
3231, lightening hole；324, L-shaped is linked up with；3241, horizontal segment；3242, vertical section；3243, arc-shaped convex；4, floorings；5, it holds in the palm
Frame；51, diagonal brace；52, bracing piece；6, rust-proof coating.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing.
Wherein identical parts are presented with like reference characters.It should be noted that word used in the following description
Language "front", "rear", "left", "right", "up" and "down" refer to the direction in attached drawing, word " bottom surface " and " top surface ", "inner" and
"outside" refers respectively to the direction towards or away from geometric center of specific component.
A kind of Long span mountable steel bridge structure, as shown in Figure 1, including two bridge piers 1 and parallel riding upon on bridge pier 1
Two main bridge truss 2 are erected with several floorings 4, the length setting of floorings 4 between main bridge truss 2 by mounting assembly 3
For 3.048m, requirement is laid with to meet steel bridge more general in industry with this.
As illustrated in fig. 1 and 2, main bridge truss 2 is spliced to form by several truss elements 21, and each truss element 21 is by two layers three
Angle truss 211 is welded, and being coated with the antirust made of acrylic polyurethane finish paint material on the surface of English truss 211 applies
Layer 6；The top boom 22 for reinforcing its overall construction intensity is installed at the top of adjacent truss unit 21；In the side of bridge pier 1
A pair of of bracket 5 is additionally provided on wall, which includes two parallel diagonal braces 51 and several bracing pieces 52, two diagonal braces 51
One end is fixed with bridge pier 1, and bottom of the other end respectively with two main bridge truss 2 is fixed, and bracing piece 52 is staggered at two tiltedly
Between support 51.
As shown in Figure 1, mounting assembly 3 includes vertical web member 32 and crossbeam 31.Vertical web member 32 is positioned close to floorings 4
On the English truss 211 of side, 31 model of crossbeam is adopted as 200 types general in industry, and the both ends of crossbeam 31 pass through high-strength spiral shell
Bolt (not shown) is fixed on two main bridge truss 2 on corresponding vertical web member 32.
As shown in figure 3, vertical web member 32 includes corrugated sheet 321 and two blocks of side plates 323, two blocks of side plates 323 are perpendicularly fixed at
Corrugated sheet 321 deviates from the both ends of the side crossbeam 31 (referring to Fig. 1).Due to the section undulate of corrugated sheet 321, when vertical web member
Cushioning effect can be played when 32 impact loaded, while after it is fixed with side plate 323,32 C-shaped knot of entire vertical web member
Structure can also reduce the dosage of steel compared with common shaped steel；Lightening hole 3231 is evenly arranged on side plate 323, thus into
One step mitigates entire truss element 21 and conducts oneself with dignity, to facilitate its transport and installation.
As shown in figure 3, for so that 32 loss of weight of vertical web member after still have stronger engineering strength, two blocks of side plates 323 it
Between be provided with stiffener 322, stiffener 322 is integrally formed by several interconnecting pieces 3221 and support portion 3222；In two blocks of side plates 323
Between be staggered be useful for installation stiffener 322 L-shaped hook 324, the L-shaped hook 324 include be fixed on side plate 323
Horizontal segment 3241 and with 3241 integrally formed vertical section 3242 of horizontal segment, interconnecting piece 3221 is located on horizontal segment 3241 and hooks
Firmly vertical section 3242；It is additionally provided in the side of vertical section 3242 towards horizontal segment 3241 for keeping out the movement of horizontal segment 3241
Arc-shaped convex 3243.Stiffener 322 can reinforce the stable connection between two blocks of side plates 323, play the work for reinforcing support
With so that vertical web member 32 disclosure satisfy that the structural strength required by steel bridge.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but
As long as all being protected by Patent Law in the right of the utility model.
Claims (8)
1. a kind of Long span mountable steel bridge structure, including two bridge piers (1), two masters being erected between two bridge piers (1)
Bridge truss (2), host bridge truss (2) are mutually spliced to form by several sections truss element triangular in shape (21), adjacent institute
It states and is provided with top boom (22) on the upside of truss element (21), several cross are arranged in parallel between two host bridge truss (2)
Beam (31) is equipped with several floorings (4) on the crossbeam (31), it is characterized in that：The middle part of the truss element (21) is vertical
It is fixed with vertical web member (32), the both ends of the crossbeam (31) and the corresponding vertical abdomen on two main bridge truss (2)
Bar (32) is fixedly connected.
2. a kind of Long span mountable steel bridge structure according to claim 1, it is characterized in that：The length of the floorings (4)
Degree is 3.048m, 200 type of crossbeam (31) model.
3. a kind of Long span mountable steel bridge structure according to claim 2, it is characterized in that：The vertical web member (32) by
Corrugated sheet (321), the side plate (323) being fixedly connected with corrugated sheet (321) both sides are constituted, and are uniformly set on the corrugated sheet (321)
It is equipped with several lightening holes (3231).
4. a kind of Long span mountable steel bridge structure according to claim 3, it is characterized in that：Two pieces of side plates (323)
Inside staggered relative be provided with several L-shaped hook (324), the L-shaped hook (324) include horizontal segment (3241) and with level
Section (3241) integrally formed vertical section (3242)；
Be equipped with stiffener (322) between two pieces of side plates (323), the stiffener (322) by several interconnecting pieces (3221) and
Several support portions (3222) are integrally formed, and several interconnecting pieces (3221) hang over L-shaped hook (324).
5. a kind of Long span mountable steel bridge structure according to claim 4, it is characterized in that：In the vertical section (3242)
Side is equipped with arc-shaped convex (3243), the interconnecting piece (3221) be clipped in arc-shaped convex (3243) and horizontal segment (3241) it
Between.
6. a kind of Long span mountable steel bridge structure according to any one of Claims 1 to 5, it is characterized in that：It is described
Bridge pier (1) is equipped with a pair of of bracket (5), and the bracket (5) includes two diagonal braces (51) disposed in parallel, two diagonal braces
(51) one end and bridge pier (1) are fixed, and the other end is fixed with two main bridge truss (2) respectively.
7. a kind of Long span mountable steel bridge structure according to claim 6, it is characterized in that：It is handed between the diagonal brace (51)
Mistake is provided with several bracing pieces (52).
8. a kind of Long span mountable steel bridge structure according to claim 7, it is characterized in that：The truss element (21)
Surface is equipped with the rust-proof coating (6) being made of acrylic polyurethane finish paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721677261.2U CN207619809U (en) | 2017-12-05 | 2017-12-05 | A kind of Long span mountable steel bridge structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721677261.2U CN207619809U (en) | 2017-12-05 | 2017-12-05 | A kind of Long span mountable steel bridge structure |
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| Publication Number | Publication Date |
|---|---|
| CN207619809U true CN207619809U (en) | 2018-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721677261.2U Active CN207619809U (en) | 2017-12-05 | 2017-12-05 | A kind of Long span mountable steel bridge structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109557633A (en) * | 2018-12-12 | 2019-04-02 | 中国科学院西安光学精密机械研究所 | A kind of space optical remote sensor carbon fiber sub-truss jointing and sub-truss |
| CN111307954A (en) * | 2020-03-20 | 2020-06-19 | 周泽辉 | Automatic flaw detection equipment for concrete bridge pier |
-
2017
- 2017-12-05 CN CN201721677261.2U patent/CN207619809U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109557633A (en) * | 2018-12-12 | 2019-04-02 | 中国科学院西安光学精密机械研究所 | A kind of space optical remote sensor carbon fiber sub-truss jointing and sub-truss |
| CN111307954A (en) * | 2020-03-20 | 2020-06-19 | 周泽辉 | Automatic flaw detection equipment for concrete bridge pier |
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