CN109056529B - Steel anchor box suitable for pin joint type sling of railway steel truss girder suspension bridge - Google Patents
Steel anchor box suitable for pin joint type sling of railway steel truss girder suspension bridge Download PDFInfo
- Publication number
- CN109056529B CN109056529B CN201811118318.4A CN201811118318A CN109056529B CN 109056529 B CN109056529 B CN 109056529B CN 201811118318 A CN201811118318 A CN 201811118318A CN 109056529 B CN109056529 B CN 109056529B
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- Prior art keywords
- plate
- anchor box
- lug
- steel anchor
- steel
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 69
- 239000010959 steel Substances 0.000 title claims abstract description 69
- 239000000725 suspension Substances 0.000 title claims abstract description 25
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000003466 welding Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000000959 ear middle Anatomy 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/02—Suspension bridges
Abstract
The invention discloses a steel anchor box suitable for a pin joint type sling of a railway steel truss girder suspension bridge, which comprises a top plate, a bottom plate, webs and side plates, wherein the webs comprise two outer webs and a middle web positioned between the two outer webs, the middle web divides the box body of the steel anchor box into a double-cavity structure, a first lug plate is arranged in each cavity, lug plate pin holes for connecting the sling are formed in the first lug plate, and mounting holes are formed in each cavity of the top plate; the two side plates are parallel to the upper chord integral node plate lug plate, and the side plates are detachably connected with the upper chord integral node plate lug plate. According to the invention, the steel anchor box is designed into an independent structure, and the steel anchor box is detachably connected with the lug plate of the integral node plate, so that the factory manufacture and the field installation are facilitated, and the later maintenance and the replacement are also facilitated; and the bottom plate of the steel anchor box is positioned above the upper chord member and is not welded with the top plate of the upper chord member, so that the situation that most of vertical tension is transmitted to the thickness direction of the top plate of the upper chord member and lamellar tearing is easy to occur is avoided.
Description
Technical Field
The invention relates to a steel anchor box, in particular to a steel anchor box suitable for a pin joint type sling of a railway steel truss girder suspension bridge.
Background
The suspension bridge slings are connected with the main cable in a riding mode and in a pin joint mode. The opposite pin joint type sling is connected with the main cable clamp lifting lug plate at the upper end and the steel truss girder lifting lug plate at the lower end. For a highway steel truss suspension bridge, two types of steel truss lug plates connected with suspension ropes are mainly adopted, one type of steel truss lug plates is a longitudinal lug plate, the lug plates are embedded into an upper chord member of the steel truss, vertical force of the lug plates is transmitted to an integral node plate of the upper chord member through an additionally arranged partition plate, the other type of steel truss lug plates is a transverse lug plate arranged at each suspension rope, and the lug plates are welded with the integral node plate of the upper chord member and a top plate of the upper chord member.
In the first connecting mode, the welding seams of the steel truss girder ear plates are more, most of the welding seams are penetration welding, so that a great difficulty is brought to processing and manufacturing, and for a railway steel truss girder suspension bridge, the welding difficulty is correspondingly increased due to the fact that the section width of an upper chord member is relatively large; for the railway steel truss suspension bridge, as the section width of the upper chord member is relatively large, the width of the middle ear plate in the second connecting mode is correspondingly increased, so that consumable materials are increased, and most of the vertical tension is transmitted to the thickness direction of the upper chord top plate, so that lamellar tearing is easy to occur.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a steel anchor box suitable for a pin joint type sling of a railway steel truss girder suspension bridge.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides a steel anchor box suitable for railway steel truss girder suspension bridge pin joint formula hoist cable, includes roof, bottom plate, web and curb plate, the web includes two outside webs and is located two the intermediate web between the outside web, the intermediate web divide into two cavity structures with the box of steel anchor box, all is equipped with first otic placode in every cavity, be equipped with the otic placode pinhole that is used for connecting the hoist cable on the first otic placode, the roof all is equipped with the mounting hole at every cavity; the two side plates are parallel to the upper chord integral node plate lug plate, and the side plates are detachably connected with the upper chord integral node plate lug plate.
The invention designs the steel anchor box into an independent structure, and the traditional method of welding the steel anchor box and the integral gusset plate ear plate is abandoned, so that the steel anchor box is detachably connected, thereby being convenient for factory manufacture and field installation and also convenient for later maintenance and replacement. And the bottom plate of the steel anchor box is positioned above the upper chord member and is not welded with the top plate of the upper chord member, and the steel anchor box is stressed only through the integral node plate ear plate of the upper chord member, so that the situation that most of vertical tension is transmitted to the thickness direction of the top plate of the upper chord member and lamellar tearing is easy to occur is avoided. The welding lines of the steel anchor box lug plates are fewer, and the processing and manufacturing difficulties are low.
Preferably, each of the first ear panels is parallel to the side panel, and the first ear panels are connected to the top panel, the bottom panel, the intermediate web and the outer web. The both sides of every cavity all are equipped with the second otic placode, the second otic placode is connected with roof, bottom plate and outside web, also be equipped with the otic placode pinhole on the second otic placode. The first lug plate is positioned in the box body and is mainly used for connecting slings, and the second lug plate is positioned at two ends of the box body and is mainly used for replacing slings.
Preferably, the first lug plate and the second lug plate are respectively provided with a lug plate reinforcing plate at the positions close to the pin holes of each lug plate, so that the structural strength of the connecting positions of the lug plate reinforcing plates and the sling is ensured.
Preferably, the bottom plate is located above the top chord plate and is not welded with the top chord plate, the steel anchor box is stressed only through the integral node plate ear plate of the top chord, and the situation that most of vertical tension is transmitted to the thickness direction of the top chord plate and lamellar tearing is easy to occur is avoided. And the space above the upper chord member is used for arranging the steel anchor box and is connected with the sling, so that the installation space is large, and the connection difficulty is reduced.
Preferably, a plurality of bolt holes are formed in the side plates, so that bolt connection between the side plates and the upper chord member integral node plate lug plates is facilitated.
Preferably, the side plates are connected with the lug plates of the integral node plates of the upper chord member through high-strength bolts, so that the connection is reliable, and the connection strength is high.
Preferably, the middle part of the bottom plate is provided with a hand hole, so that welding among parts is facilitated, and meanwhile, no water accumulation in the steel anchor box is ensured.
Preferably, the top plate, the bottom plate, the web plate, the side plates, the first lug plate and the second lug plate are all welded, so that the manufacturing is convenient and the connection is reliable.
Compared with the prior art, the invention has the beneficial effects that:
the invention designs the steel anchor box into an independent structure, and the traditional method of welding the steel anchor box and the integral gusset plate ear plate is abandoned, so that the steel anchor box is detachably connected, thereby being convenient for factory manufacture and field installation and also convenient for later maintenance and replacement. And the bottom plate of the steel anchor box is positioned above the upper chord member and is not welded with the top plate of the upper chord member, and the steel anchor box is stressed only through the integral node plate ear plate of the upper chord member, so that the situation that most of vertical tension is transmitted to the thickness direction of the top plate of the upper chord member and lamellar tearing is easy to occur is avoided. The welding lines of the steel anchor box lug plates are fewer, and the processing and manufacturing difficulties are low.
Description of the drawings:
fig. 1 is a schematic elevation view of a steel anchor box for a pinned sling of a railway steel truss suspension bridge according to the present invention.
Fig. 2 is a schematic view of the structure of the ear plate according to the present invention.
Fig. 3 is a schematic structural view of a side plate according to the present invention.
Fig. 4 is a schematic view of the structure of the top plate according to the present invention.
Fig. 5 is a schematic view of the structure of the base plate according to the present invention.
The marks in the figure: 1-top plate, 2-bottom plate, 3-web, 3 a-middle web, 3 b-outer web, 4-side plate, 5-ear plate, 5 a-first ear plate, 5 b-second ear plate, 6-ear plate reinforcing plate, 7-ear plate pin hole, 8-bolt hole, 9-upper chord integral node plate ear plate, 10-upper chord top plate, 11-mounting hole, 12-hand hole.
Detailed Description
The present invention will be described in further detail with reference to test examples and specific embodiments. It should not be construed that the scope of the above subject matter of the present invention is limited to the following embodiments, and all techniques realized based on the present invention are within the scope of the present invention.
As shown in fig. 1-2, a steel anchor box suitable for a pin joint type sling of a railway steel truss girder suspension bridge comprises a top plate 1, a bottom plate 2, a web plate 3 and side plates 4, wherein the web plate 3 comprises two outer side web plates 3b and an intermediate web plate 3a positioned between the two outer side web plates 3b, and the intermediate web plate 3a divides a box body of the steel anchor box into a double-cavity structure. The ear plate 5 comprises a first ear plate 5a and a second ear plate 5b, wherein each cavity is internally provided with the first ear plate 5a which is connected with a top plate 1, a bottom plate 2, an outer side web plate 3b and a middle web plate 3 a; a second ear plate 5b is provided outside the box and is connected to the top plate 1, the bottom plate 2 and the outer web 3 b. All parts of the steel anchor box are welded and connected.
The first ear plate 5a and the second ear plate 5b are respectively provided with an ear plate pin hole 7 for connecting a sling, and each ear plate reinforcing plate 6 is arranged near each ear plate pin hole 7. The first ear plate 5a is located inside the case and is mainly used for connecting slings, and the second ear plate 5b is located at two ends of the case and is mainly used for replacing slings.
As shown in fig. 3, a certain number of bolt holes 8 are formed in two side plates 4, when the side plates 4 are attached to an upper chord integral joint plate ear plate 9, the side plates 4 and the upper chord integral joint plate ear plate 9 are connected through high-strength bolts, and finally the bottom plate 2 is fixed above an upper chord top plate 10.
As shown in fig. 4, the top plate 1 is provided with a mounting hole 11 in each cavity, so that the sling anchor head is connected with the first ear plate 5a, and meanwhile, the requirement of bolt mounting space is met.
As shown in fig. 5, four hand holes 12 are formed in the middle of the bottom plate 2, so that welding among components is facilitated, and no water accumulation in the steel anchor box is ensured.
The force transmission path of the steel anchor box is as follows: the internal force of the steel truss girder is transferred to the steel anchor box through the friction force between the lug plate 9 and the side plate 4 of the integral node of the upper chord member by means of the high-strength bolts, the internal force is transferred to the middle web plate 3a and the outer web plate 3b in the steel anchor box through the side plate 4, the web plate 3 is transferred to the first lug plate 5a, and the first lug plate 5a is transferred to the sling. The top plate 1 and the bottom plate 2 participate in the stress of the middle web 3a and the outer web 3b, and the bottom plate 2 participates in the stress of the first ear plate 5 a.
The above embodiments are only for illustrating the present invention and not for limiting the technical solutions described in the present invention, and although the present invention has been described in detail in the present specification with reference to the above embodiments, the present invention is not limited to the above specific embodiments, and thus any modifications or equivalent substitutions are made to the present invention; all technical solutions and modifications thereof that do not depart from the spirit and scope of the invention are intended to be covered by the scope of the appended claims.
Claims (7)
1. A steel anchor box suitable for a pin joint type sling of a railway steel truss girder suspension bridge is characterized in that,
the steel anchor box comprises a top plate (1), a bottom plate (2), a web plate (3) and side plates (4), wherein the web plate (3) comprises two outer side web plates (3 b) and an intermediate web plate (3 a) positioned between the two outer side web plates (3 b), the intermediate web plate (3 a) divides the box body of the steel anchor box into a double-cavity structure, a first lug plate (5 a) is arranged in each cavity, lug plate pin holes (7) for connecting slings are formed in the first lug plate (5 a), and mounting holes (11) are formed in each cavity of the top plate (1); the two side plates (4) are parallel to the upper chord integral node plate ear plate (9), and the side plates (4) are detachably connected with the upper chord integral node plate ear plate (9); the bottom plate (2) is positioned above the upper chord top plate (10);
each first ear plate (5 a) is parallel to the side plate (4), and the first ear plates (5 a) are connected with the top plate (1), the bottom plate (2), the middle web plate (3 a) and the outer web plate (3 b).
2. A steel anchor box for a pinned suspension cable of a steel truss girder suspension bridge for railways as claimed in claim 1, wherein,
each of the two sides of the cavity is provided with a second lug plate (5 b), the second lug plates (5 b) are connected with the top plate (1), the bottom plate (2) and the outer side web plate (3 b), and lug plate pin holes (7) are also formed in the second lug plates (5 b).
3. A steel anchor box for a railway steel truss suspension bridge pinned slings according to claim 2, wherein,
the first ear plate (5 a) and the second ear plate (5 b) are respectively provided with an ear plate reinforcing plate (6) close to each ear plate pin hole (7).
4. A steel anchor box for a pinned suspension cable of a steel truss girder suspension bridge for railways as claimed in claim 1, wherein,
the side plate (4) is provided with a plurality of bolt holes (8).
5. A steel anchor box for a pinned suspension cable of a steel truss girder suspension bridge for railways as claimed in claim 4, wherein,
the side plates (4) are connected with the upper chord integral node plate lug plates (9) through high-strength bolts.
6. A steel anchor box for a pinned suspension cable of a steel truss girder suspension bridge for railways as claimed in claim 1, wherein,
the middle part of the bottom plate (2) is provided with a hand hole (12).
7. A steel anchor box for a railway steel truss suspension bridge pinned slings according to any one of claims 1-6, wherein,
the top plate (1), the bottom plate (2), the web plate (3), the side plates (4), the first lug plates (5 a) and the second lug plates (5 b) are all welded and connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811118318.4A CN109056529B (en) | 2018-09-25 | 2018-09-25 | Steel anchor box suitable for pin joint type sling of railway steel truss girder suspension bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811118318.4A CN109056529B (en) | 2018-09-25 | 2018-09-25 | Steel anchor box suitable for pin joint type sling of railway steel truss girder suspension bridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109056529A CN109056529A (en) | 2018-12-21 |
| CN109056529B true CN109056529B (en) | 2024-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811118318.4A Active CN109056529B (en) | 2018-09-25 | 2018-09-25 | Steel anchor box suitable for pin joint type sling of railway steel truss girder suspension bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109056529B (en) |
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