CN203603019U - Highway and railway layering steel box beam - Google Patents
Highway and railway layering steel box beam Download PDFInfo
- Publication number
- CN203603019U CN203603019U CN201320749557.6U CN201320749557U CN203603019U CN 203603019 U CN203603019 U CN 203603019U CN 201320749557 U CN201320749557 U CN 201320749557U CN 203603019 U CN203603019 U CN 203603019U
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- Prior art keywords
- base plate
- plate
- limit
- case beam
- case
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 51
- 239000010959 steel Substances 0.000 title claims abstract description 51
- 239000003351 stiffener Substances 0.000 claims description 45
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 34
- 229910052742 iron Inorganic materials 0.000 claims description 17
- 238000009423 ventilation Methods 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 3
- 206010039509 Scab Diseases 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
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Abstract
The utility model discloses a highway and railway layering steel box beam. The highway and railway layering steel box beam comprises a box beam top plate and a box beam bottom plate, the box beam bottom plate is located below the middle of the box beam top plate, a supporting structure is arranged between the box beam top plate and the box beam bottom plate, and the supporting structure is of a truss type box structure. Edge webs vertically extending are arranged at the two transverse ends of the box beam top plate, an edge bottom plate is arranged between the lower end of each edge web and the end of the box beam bottom plate on the same side, and an inverted trapezoid box cavity is formed by enclosing the box beam top plate, the edge webs, the edge bottom plate and the box beam bottom plate. According to the highway and railway layering steel box beam, on the basis of a conventional steel box beam, the cross section height is increased, so that a railway can be arranged in the steel box beam. The truss type structure is adopted in the supporting structure between the box beam top plate and the box beam bottom plate, and compared with an integral steel box beam, steel is saved.
Description
Technical field
The utility model relates to bridge construction technical field, refers to particularly a kind of public iron layering steel case beam.
Background technology
The features such as large-span bridge on highway mainly adopts steel case beam, and it is few that it has steel using amount, and torsional rigidity is large, and wind resistance is good, but do not adopt in public iron layered arrangement.The Longspan Bridge of current combined layered arrangement all adopts steel truss girder, although steel truss girder technology maturation, but still there is following imperfection part:
1. due to factors such as joint structure, scab are more and bolt hole weakens, rod member slenderness ratio is larger, steel truss girder stock utilization is not high, and steel using amount is large.
2. steel truss girder global sections height is large, and rod member is many, and air resistance coefficient is large, and bluff body cross section wind resistance is poor, seems on the low side at the driving wind speed threshold values of coastal typhoon prone areas train.
3. steel girder member bar is various, although transporting and hoisting is convenient, whole sections concatenation construction difficulty is large, and single rod member concatenation construction progress is slower, and construction precision requires high.
4. be difficult to design the concrete structure matching with purlin formula structure, cause end bay not carry out Saving steel amount by the form of structure of hybrid beam, cost is higher for a long time.
Summary of the invention
The purpose of this utility model is exactly the deficiency that will solve above-mentioned background technology, provides one to have better wind resistance, and can improve the public iron layering steel case beam of stock utilization.
The technical solution of the utility model is: a kind of public iron layering steel case beam, it is characterized in that: it comprises case back plate and case beam base plate, described case beam base plate is positioned at below, case back plate middle part, between described case back plate and case beam base plate, be provided with braced structures, described braced structures comprises roof rail and floor beam, described roof rail is arranged on case back plate lower surface lateral arrangement, described floor beam is arranged on case beam base plate lower surface lateral arrangement, the transverse ends of described roof rail is longitudinally provided with purlin formula median ventral plate and winds up, the transverse ends of described floor beam is longitudinally provided with purlin formula median ventral plate lower edge, described purlin formula median ventral plate wind up and purlin formula median ventral plate lower edge between be provided with multiple purlins formula median ventral plate web member, described roof rail, floor beam, purlin formula median ventral plate winds up, purlin formula median ventral plate web member and purlin formula median ventral plate lower edge surround a boxed frame, the transverse ends of described case back plate is provided with the limit web to vertical extension, between the lower end of described limit web and the end of case beam base plate homonymy, is provided with limit base plate, and described case back plate, limit web, limit base plate and case beam base plate surround an inverted trapezoidal case chamber.
In such scheme:
Described case back plate lower surface is provided with multiple top board longitudinal stiffeners, described top board longitudinal stiffener comprises the U-shaped longitudinal stiffener of top board and top board I type longitudinal stiffener, described top board I type longitudinal stiffener is arranged on lower surface, case back plate middle part, and the U-shaped longitudinal stiffener of described top board is arranged on the case back plate lower surface of top board I type longitudinal stiffener both sides.
Between described case back plate and roof rail, be provided with the first crossbeam stiffening rib of multiple vertical layouts.
Described case beam base plate lower surface is provided with multiple base plate longitudinal stiffeners, and described base plate longitudinal stiffener comprises the U-shaped longitudinal stiffener of base plate and base plate I type longitudinal stiffener, and the U-shaped longitudinal stiffener of described base plate is arranged on the case beam base plate lower surface of arranging railway; Described base plate I type longitudinal stiffener is arranged on the case beam base plate lower surface of the U-shaped longitudinal stiffener of base plate both sides.
Described case beam base plate is provided with second cross beam stiffening rib.
Web inner side, described limit is longitudinally provided with limit web stiffening rib; Base plate inner side, described limit is longitudinally provided with the U-shaped longitudinal stiffener of multiple limits base plate.
Described limit web and limit base plate inner side are provided with purlin formula diaphragm, and formula diaphragm one end, described purlin is connected with the end of roof rail, and the other end of purlin formula diaphragm is connected with purlin formula median ventral plate lower edge.
Between the junction of described limit web and limit base plate and case back plate, be provided with purlin formula diaphragm brace.
Described limit web outside is provided with triangular shape tuyere, and limit and the limit web of described tuyere fit, and described drag-line suspension centre is arranged in tuyere.
Described limit base plate is provided with multiple ventilation and lighting grids.
The utility model has the advantage of:
1, the utility model, on the basis of conventional steel case beam, has increased depth of section, makes railway can be arranged in steel case beam inside;
2, the braced structures between the utility model raising middle flask back plate and case beam base plate adopts purlin formula structure, saves steel than steel box girder integral formula;
3, the concrete box girder that the end bay part of the utility model raising middle flask back plate can adopt profile to match, both can shorten end bay length by ballast, can save again end bay steel using amount, reached good economic indicator;
4, tuyere is arranged on limit web outside, and limit base plate is obliquely installed, and forms streamlined section, compares steel truss girder entirety wind resistance better; And when train is travelled in steel case beam, be subject to typhoon influence little, can further improve train operation wind speed threshold values;
5,, because steel case beam wall thickness is thinner, most of employing welded each member connection, improved stock utilization, compares trusses bolt and more saves steel.
6, the each member prefabrication of the utility model, can adopt large sections to install, and construction precision requires relative trusses low, the construction speed that added piece.
Accompanying drawing explanation
Fig. 1 is structure elevation of the present utility model;
Fig. 2 is floor map of the present utility model;
Fig. 3 is A-A generalized section in Fig. 1.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
The public iron layering of one as shown in FIG. steel case beam, it comprises case back plate 1 and case beam base plate 4, case beam base plate 4 is positioned at case back plate 1 below, middle part, on case back plate 1 for arranging highway, on case beam base plate 4 for arranging railway, between case back plate 1 and case beam base plate 4, be provided with braced structures, braced structures comprises roof rail 16 and floor beam 19, roof rail 16 is arranged on case back plate 1 lower surface lateral arrangement, floor beam 19 is arranged on case beam base plate 4 lower surfaces lateral arrangement, the transverse ends of roof rail 16 is longitudinally provided with purlin formula median ventral plate and winds up 9, the transverse ends of floor beam 19 is longitudinally provided with purlin formula median ventral plate lower edge 11, purlin formula median ventral plate wind up 9 and purlin formula median ventral plate lower edge 11 between be provided with multiple purlins formula median ventral plate web member 10, purlin formula median ventral plate web member 10 is by oblique layout, intersect the end of adjacent purlin formula median ventral plate web member 10, roof rail 16, floor beam 19, purlin formula median ventral plate winds up 9, purlin formula median ventral plate web member 10 and purlin formula median ventral plate lower edge 11 surround a boxed frame, railway is arranged in boxed frame, the transverse ends of case back plate 1 is provided with the limit web 12 to vertical extension, between the lower end of limit web 12 and the end of case beam base plate 4 homonymies, is provided with limit base plate 7, and case back plate 1, limit web 12, limit base plate 7 and case beam base plate 4 surround an inverted trapezoidal case chamber.
The designed public iron layering steel case beam of the utility model is on the basis of conventional steel case beam, has increased depth of section, makes railway can be arranged in steel case beam inside; In addition the braced structures between case back plate and case beam base plate is adopted to purlin formula box-structure, save steel than steel box girder integral formula; And the concrete box girder that the end bay part of the utility model raising middle flask back plate can adopt profile to match, both can shorten end bay length by ballast, can save again end bay steel using amount, reached good economic indicator.
In the present embodiment:
Case beam base plate 4 lower surfaces are provided with multiple base plate longitudinal stiffeners, and base plate longitudinal stiffener comprises the U-shaped longitudinal stiffener 5 of base plate and base plate I type longitudinal stiffener 6, and the U-shaped longitudinal stiffener 5 of base plate is arranged on case beam base plate 4 lower surfaces of arranging railway; Base plate I type longitudinal stiffener 6 is arranged on case beam base plate 4 lower surfaces of the U-shaped longitudinal stiffener of base plate 5 both sides.
Limit web 12 and limit base plate 7 inner sides are provided with purlin formula diaphragm 21, and formula diaphragm 21 one end, purlin are connected with the end of roof rail 16, and the other end of purlin formula diaphragm 21 is connected with purlin formula median ventral plate lower edge 11.
Between the junction of limit web 12 and limit base plate 7 and case back plate 1, be provided with purlin formula diaphragm brace 18.
Each member in the present embodiment all adopts purlin formula structure, saves steel than steel box girder integral formula; And each member all can be prefabricated in the factory, adopt large sections to install, construction precision requires relative trusses low, the construction speed that added piece.
In addition, be provided with multiple ventilation and lighting grids 22 at limit base plate 7, play the effect of ventilation and lighting in inverted trapezoidal case chamber.
Claims (10)
1. a public iron layering steel case beam, it is characterized in that: it comprises case back plate (1) and case beam base plate (4), described case beam base plate (4) is positioned at below, case back plate (1) middle part, between described case back plate (1) and case beam base plate (4), be provided with braced structures, described braced structures comprises roof rail (16) and floor beam (19), described roof rail (16) is arranged on case back plate (1) lower surface lateral arrangement, described floor beam (19) is arranged on case beam base plate (4) lower surface lateral arrangement, the transverse ends of described roof rail (16) is longitudinally provided with purlin formula median ventral plate wind up (9), the transverse ends of described floor beam (19) is longitudinally provided with purlin formula median ventral plate lower edge (11), described purlin formula median ventral plate wind up (9) and purlin formula median ventral plate lower edge (11) between be provided with multiple purlin formula median ventral plate web members (10), described roof rail (16), floor beam (19), purlin formula median ventral plate wind up (9), purlin formula median ventral plate web member (10) and purlin formula median ventral plate lower edge (11) surround a boxed frame, the transverse ends of described case back plate (1) is provided with the limit web (12) to vertical extension, between the end of the lower end of described limit web (12) and case beam base plate (4) homonymy, be provided with limit base plate (7), described case back plate (1), limit web (12), limit base plate (7) and case beam base plate (4) surround an inverted trapezoidal case chamber.
2. public iron layering steel case beam according to claim 1, it is characterized in that: described case back plate (1) lower surface is provided with multiple top board longitudinal stiffeners, described top board longitudinal stiffener comprises the U-shaped longitudinal stiffener of top board (2) and top board I type longitudinal stiffener (3), described top board I type longitudinal stiffener (3) is arranged on lower surface, case back plate (1) middle part, and the U-shaped longitudinal stiffener of described top board (2) is arranged on case back plate (1) lower surface of top board I type longitudinal stiffener (3) both sides.
3. public iron layering steel case beam according to claim 1, is characterized in that: the first crossbeam stiffening rib (17) that is provided with multiple vertical layouts between described roof rail (16).
4. public iron layering steel case beam according to claim 1, it is characterized in that: described case beam base plate (4) lower surface is provided with multiple base plate longitudinal stiffeners, described base plate longitudinal stiffener comprises the U-shaped longitudinal stiffener of base plate (5) and base plate I type longitudinal stiffener (6), and the U-shaped longitudinal stiffener of described base plate (5) is arranged on case beam base plate (4) lower surface of arranging railway; Described base plate I type longitudinal stiffener (6) is arranged on case beam base plate (4) lower surface of the U-shaped longitudinal stiffener of base plate (5) both sides.
5. public iron layering steel case beam according to claim 1, is characterized in that: described floor beam (19) is provided with second cross beam stiffening rib (20).
6. public iron layering steel case beam according to claim 1, is characterized in that: described limit web (12) inner side is longitudinally provided with limit web stiffening rib (13); Described limit base plate (7) inner side is longitudinally provided with the U-shaped longitudinal stiffener of multiple limits base plate (8).
7. public iron layering steel case beam according to claim 1, it is characterized in that: described limit web (12) and limit base plate (7) inner side are provided with purlin formula diaphragm (21), described purlin formula diaphragm (21) one end is connected with the end of roof rail (16), and the other end of purlin formula diaphragm (21) is connected with purlin formula median ventral plate lower edge (11).
8. public iron layering steel case beam according to claim 1, is characterized in that: between the junction of described limit web (12) and limit base plate (7) and case back plate (1), be provided with purlin formula diaphragm brace (18).
9. according to the public iron layering steel case beam described in claim 1,6,7 or 8, it is characterized in that: described limit web (12) outside is provided with triangular shape tuyere (14), limit and the limit web (12) of described tuyere (14) fit, and described drag-line suspension centre (15) is arranged in tuyere (14).
10. according to the public iron layering steel case beam described in claim 1,6,7 or 8, it is characterized in that: described limit base plate (7) is provided with multiple ventilation and lighting grids (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320749557.6U CN203603019U (en) | 2013-11-25 | 2013-11-25 | Highway and railway layering steel box beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320749557.6U CN203603019U (en) | 2013-11-25 | 2013-11-25 | Highway and railway layering steel box beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203603019U true CN203603019U (en) | 2014-05-21 |
Family
ID=50715701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320749557.6U Expired - Lifetime CN203603019U (en) | 2013-11-25 | 2013-11-25 | Highway and railway layering steel box beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203603019U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590316A (en) * | 2013-11-25 | 2014-02-19 | 中铁第四勘察设计院集团有限公司 | Highway and railway layered steel box beam |
| CN110605494A (en) * | 2019-10-10 | 2019-12-24 | 清华大学 | Detachable assembled steel box girder U rib structure and process |
| CN111794075A (en) * | 2020-07-21 | 2020-10-20 | 中铁工程设计咨询集团有限公司 | Ballastless track steel truss girder bridge |
-
2013
- 2013-11-25 CN CN201320749557.6U patent/CN203603019U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590316A (en) * | 2013-11-25 | 2014-02-19 | 中铁第四勘察设计院集团有限公司 | Highway and railway layered steel box beam |
| CN103590316B (en) * | 2013-11-25 | 2016-01-20 | 中铁第四勘察设计院集团有限公司 | Public iron layering steel box-girder |
| CN110605494A (en) * | 2019-10-10 | 2019-12-24 | 清华大学 | Detachable assembled steel box girder U rib structure and process |
| CN110605494B (en) * | 2019-10-10 | 2020-07-24 | 清华大学 | Detachable assembled steel box girder U rib structure and process |
| CN111794075A (en) * | 2020-07-21 | 2020-10-20 | 中铁工程设计咨询集团有限公司 | Ballastless track steel truss girder bridge |
| CN111794075B (en) * | 2020-07-21 | 2022-08-30 | 中铁工程设计咨询集团有限公司 | Ballastless track steel truss girder bridge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140521 |
|
| CX01 | Expiry of patent term |