CN217517348U - Stiffening rib structure at steel cover beam support - Google Patents
Stiffening rib structure at steel cover beam support Download PDFInfo
- Publication number
- CN217517348U CN217517348U CN202220920622.6U CN202220920622U CN217517348U CN 217517348 U CN217517348 U CN 217517348U CN 202220920622 U CN202220920622 U CN 202220920622U CN 217517348 U CN217517348 U CN 217517348U
- Authority
- CN
- China
- Prior art keywords
- steel
- bent cap
- plate
- concrete
- top plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model relates to the technical field of bridge engineering, in particular to a stiffening rib structure at the position of a steel cover beam support, which comprises a steel cover beam top plate, wherein stiffening ribs of the cover beam top plate are welded on the inner side of the steel cover beam top plate along the longitudinal direction; the method comprises the following steps that a plurality of annular transverse partition plates are arranged inside a bent cap within the setting range of a support, the annular transverse partition plates are welded with a steel bent cap top plate, a steel bent cap bottom plate and a steel bent cap web inside the bent cap, grooves matched with stiffening ribs of the bent cap top plate are formed in the tops of the annular transverse partition plates, a stone-filled annular steel plate is arranged on the outer side of the steel bent cap top plate, and stone-filled concrete is poured into the stone-filled annular steel plate to form the stone-filled concrete; the beneficial effects are that: the utility model provides a pair of stiffening rib structure of steel bent cap support position department, simple structure, the atress is clear and definite, when not increasing material quantity and constructional measure by a large amount, for steel bent cap support position provides effective support, has reduced steel sheet local stress, has guaranteed the structural performance of steel bent cap.
Description
Technical Field
The utility model relates to a bridge engineering technical field, concretely relates to stiffening rib structure of steel lid roof beam support position department.
Background
Along with the development of the bridge engineering industry in China, the application range of a steel structure is continuously expanded, the application of the gate pier steel cover beam is wider and wider, and the steel cover beam is different from a common concrete cover beam in the characteristics of excellent crossing performance and construction convenience of factory prefabrication field hoisting, and is mainly used for urban bridges with crossing requirements.
In the prior art, a steel cover beam bears hundreds of tons of concentrated load at a support position, which is different from a concrete cover beam, and the steel cover beam needs a complex structural form and needs to meet the technical problems of excessive local stress of a steel structure, yield of steel components and the like. Meanwhile, the steel cover beam is high in degree of prefabrication in factories and limited in field construction space, and needs a simpler construction form to meet the requirements in all aspects; moreover, the steel cover beam support position belongs to the repeated stress area, the fatigue problem of local components is extremely outstanding, the structure of the direct relation structure at the position is safe, and a certain safety margin is required to meet the anti-fatigue requirement.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the problem that exists among the prior art, a stiffening rib structure of steel lid roof beam support position department is provided, this structure has simple structure, it is slim and graceful reliable, the construction is convenient, when not increasing material quantity and constructional measure by a large amount, for steel lid roof beam support position department provides effective support, guarantee its fatigue resistance under the effect of repeated loading, but this system wide application has expanded steel-concrete integrated configuration's range of application, the material utilization ratio of steel and concrete has been promoted, has fine application prospect.
In order to realize the purpose, the utility model provides a technical scheme does:
the utility model provides a stiffening rib structure of steel bent cap support position department, includes steel bent cap roof 1, steel bent cap bottom plate 2 and steel bent cap web 3, steel bent cap roof 1, steel bent cap bottom plate 2 and steel bent cap web 3 form closed cross-section, its characterized in that through the welding: the inner side of the steel bent cap top plate 1 is welded with a bent cap top plate stiffening rib 4 along the longitudinal direction; inside multichannel annular cross slab 5, the multichannel of setting up of bent cap in the support setting range annular cross slab 5 inside with steel bent cap roof slab 1, steel bent cap bottom plate 2 and the welding of steel bent cap web 3, multichannel the top of annular cross slab 5 seted up with 4 assorted recesses 12 of bent cap roof slab stiffening rib, multichannel the welding of annular cross slab 5's bottom has back cover steel sheet 6, multichannel form a plurality of seal spaces between annular cross slab 5, back cover steel sheet 6 and the steel bent cap roof slab 1, it is a plurality of pour the concrete in the seal space and form incasement concrete 8, 1 outside of steel bent cap roof slab is provided with stone setting annular steel sheet 9, the stone setting concrete that pours in the stone setting annular steel sheet 9 forms stone setting concrete 10.
The bottom sealing steel plate 6 is vertically welded on the inner side of the annular diaphragm plate 5 and forms a plurality of closed spaces with the steel cover beam top plate 1, and the closed spaces are filled with micro-expansion concrete.
The bottom sealing steel plate 6 is arranged in a convex shape so as to be tightly attached to the annular diaphragm plate 5 and the steel cover beam top plate 1.
The top of the back cover steel plate 6 is provided with a shear nail 7 so as to ensure the quality of concrete in the closed space. The top of steel bent cap roof plate 1 sets up the support base stone filler, support base stone filler outer edge is surrounded by stone filler annular steel sheet 9 and is the rectangle, the top of steel bent cap roof plate 1 is provided with shear force nail 7 to guarantee being connected of steel and concrete.
The upper part of the annular diaphragm plate 5 is provided with a first grout passing hole 11, so that the concrete has fluidity in the process of pouring the concrete 8 in the box.
And a second grout passing hole 13 is formed in the steel cap beam top plate 1, so that the stone-filled concrete 10 and the in-box concrete 8 are connected into a whole.
A construction method of a stiffening rib structure at a steel cover beam support comprises the following steps:
firstly, blanking and cutting a steel cover beam top plate 1, a steel cover beam bottom plate 2, a steel cover beam web plate 3, an annular diaphragm plate 5, a cover beam top plate stiffening rib 4 and the like;
welding the steel cover beam into a current state, and drilling holes in the components through grout holes;
welding a bent cap top plate stiffening rib 4 on the inner side of the steel bent cap top plate 1;
welding the annular diaphragm plate 5 with the steel cover beam top plate 1, the steel cover beam bottom plate 2 and the steel cover beam web 3;
welding a plurality of bottom sealing steel plates 6 with the annular diaphragm plates 5 to form a closed space;
welding a pad annular steel plate 9 and a shear nail 7 above the steel cover beam top plate 1;
seventhly, pouring concrete of the cover beam closed space and stone filling concrete once, adjusting the top elevation of the stone filling to the designed elevation, and completing construction of the steel cover beam support.
Compared with the prior art, the utility model discloses possess following advantage:
1. the utility model provides a pair of stiffening rib structure of steel bent cap support position department, simple structure, the atress is clear and definite, when not increasing material quantity and constructional measure by a large amount, for steel bent cap support position provides effective support, has reduced steel sheet local stress, has guaranteed the structural performance of steel bent cap.
2. The utility model provides a pair of construction method of steel bent cap support position department stiffening rib structure has improved the fatigue resistance ability at repeated atress position, pours the interior concrete of stone pad and bent cap once only, has guaranteed construction quality. In addition, all welding works of the support structure are implemented in a factory, concrete only needs to be poured on site, construction steps are few, construction speed is high, and assembling construction efficiency of the steel structure bridge is improved.
3. The utility model provides a pair of steel lid roof beam support position department stiffening rib structure construction method, but wide application in the steel case girder construction of all kinds of direct action concentrated load to can add annular cross slab, increase and decrease the filled concrete quantity according to the atress situation, have good suitability and commonality, the preparation is convenient, the support system is reliable, mechanical properties is good, has better economic and technical benefit.
Drawings
For a more clear understanding of the present invention, the present disclosure will be further described by reference to the drawings and illustrative embodiments, which are provided for illustration and are not to be construed as limiting the present disclosure.
FIG. 1 is an elevation view of a stiffening rib structure at a support position of a steel cap beam according to the present invention;
FIG. 2 is a cross-sectional view of a stiffening rib structure at the position of the steel cap beam support according to the present invention;
FIG. 3 is a schematic plan view of a stiffening rib structure at the location of a steel bent cap support according to the present invention;
FIG. 4 is a three-dimensional perspective view of the middle annular diaphragm of the present invention;
FIG. 5 is a three-dimensional perspective view of the middle back cover steel plate of the present invention;
fig. 6 is a three-dimensional view of the inner longitudinal stiffening rib of the ring-shaped steel plate of the pad stone and the top plate of the bent cap of the present invention.
Shown in the figure: the steel capping beam comprises a steel capping beam top plate 1, a steel capping beam bottom plate 2, a steel capping beam web plate 3, a capping beam top plate stiffening rib 4, an annular diaphragm plate 5, a back cover steel plate 6, shear nails 7, in-box concrete 8, a rubble annular steel plate 9, rubble concrete 10, a first grout passing hole 11, a groove 12 and a second grout passing hole 13.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.
Example 1
The utility model relates to a steel case-concrete combination beam cantilever bearing structure and construction method are applicable to all kinds of steel case-concrete combination structure bridges. The height of the steel cover beam is 2200mm, the steel cover beam is in a box-shaped cross section, steel structural members are processed in a factory, anticorrosive coating is finished in the factory, and only steel cover beam hoisting and concrete operation are carried out on a construction site. The stiffening rib structure is arranged at the support of the steel cover beam, and the steel cover beam is used as a permanent stress structure, so that the whole stress performance and the fatigue resistance of the steel cover beam are improved while the structure is simplified and the construction period is shortened.
The utility model provides a stiffening rib structure of steel lid roof beam support position department, as shown in figure 1 ~ 4. The steel capping beam comprises a steel capping beam top plate 1, a steel capping beam bottom plate 2, a steel capping beam web plate 3, a longitudinal stiffening rib 4 on the inner side of the capping beam top plate, an annular diaphragm plate 5, a back cover steel plate 6, shear nails 7, in-box concrete 8, a base stone annular steel plate 9 and base stone concrete 10.
In the embodiment, the main stress structure of the stiffening rib structure at the position of the steel cover beam support is the fatigue resistance of the steel cover beam support under the repeated loading action of a vehicle, wherein the steel cover beam top plate 1, the steel cover beam bottom plate 2, the steel cover beam web 3, the annular diaphragm plate 5 and the in-box concrete 8 can be lifted.
Wherein, steel members such as the steel bent cap roof plate 1, the steel bent cap bottom plate 2, the steel bent cap web 3, the inboard vertical stiffening rib 4 of bent cap roof plate, annular cross slab 5, back cover steel sheet 6, shear force nail 7, the annular steel sheet of stone backing all process the welding in the mill, whole application.
Wherein, fill up stone concrete 10, incasement concrete 8, carry out the construction after the hoist and mount of steel bent cap is accomplished, two parts concrete is once only pour, guarantees the concrete wholeness to promote this position fatigue resistance ability.
Wherein, the steel cap roof beam roof 1, annular cross slab 5 all need set up the grout hole at the unloading in-process, guarantee to pour 8 in-box concrete in-process, the mobility of concrete.
Wherein, 5 thickness of annular diaphragm plate are 20mm, must set up the multichannel, and the confined space scope that annular diaphragm plate 5 and back cover steel sheet 6 formed must exceed the stone concrete scope of filling up to guarantee that the effect of upper portion load is effectively transmitted downwards.
The steel cover beam top plate 1, the steel cover beam bottom plate 2, the steel cover beam web 3 and the bottom sealing steel plate 6 are straight steel plates, the width of the steel cover beam top plate 1 is 2000mm and 30mm, the width of the steel cover beam bottom plate 2 is 1460mm and 30mm, and the thickness of the steel cover beam web is 20 mm. The steel cover beam box-shaped section top plate exceeds a part of the bottom plate, and the top plate is provided with a small cantilever to meet the requirements of durability waterproof setting and weld joint arrangement.
Wherein, the single bottom sealing steel plate 6 is in a convex shape with the thickness of 16mm, and a shear nail 9 is welded on the bottom sealing steel plate and needs to be tightly attached to the annular diaphragm plate 5 so as to ensure the tightness of the closed space.
Wherein, the height of the stone concrete is determined by the elevation of the top of the bridge stone, the annular steel plate 9 of the stone serves as a template in the pouring process, and the thickness of the annular steel plate of the stone is 10 mm. The disposable pouring stone-filled concrete 10 and the in-box concrete 8 have concrete fluidity meeting the requirements of relevant specifications, and can adopt pumping concrete.
In the stiffening rib structure at the steel bent cap support position, the longitudinal stiffening rib 4 and the annular diaphragm 5 on the inner side of the bent cap top plate both need to meet the calculation of the size and the rigidity of the stiffening rib in the design specification of the highway steel structure bridge.
The size of the top plate longitudinal strength rib size 4 is related to the height of the capping beam and the thickness of the top plate, and the selected size is 220mm in height, 20mm in thickness and 11 in the width-to-thickness ratio of the stiffening rib. The welding head is arranged with the steel cover beam in equal length and is welded with the top plate of the steel cover beam through fusion welding.
The thickness of the annular diaphragm plate 5 is related to the height of the web plate and the arrangement distance of the stiffening plates, in this example, the height is 2200mm, the thickness is 20mm, the width-thickness ratio of the stiffening ribs is 110, and the arrangement distance of the two diaphragm plates is 550 m.
The height of the concrete 8 in the box is determined by calculation, and the local stress of the annular diaphragm plate 5 and the steel cover beam top plate 1 under the action of an upper load is ensured to be smaller than the allowable stress of a used steel plate material, wherein the thickness of the concrete 8 in the box is 280mm, the thickness of the bottom-sealed steel plate is 16mm, and the total height is 296 mm.
Wherein, the shear force nail 9 sets up the base stone position department at back cover steel sheet 6 and steel capping beam roof plate 1 to guarantee the effective bonding of concrete and steel. The arrangement distance of the shear nails is required to meet the requirements of minimum distance and maximum distance in the design specifications of highway steel structure bridges. In the embodiment, the selected shear nails are 16x150 types, and the arrangement distance is 100 mm.
Example 2
In this embodiment, the construction method of the stiffening rib structure at the support position of the steel cap beam includes:
1. and (4) carrying out accurate blanking on each component of the steel cover beam, wherein slurry passing hole opening is carried out on the top plate support base cushion stone position and the annular diaphragm plate.
2. And welding side longitudinal stiffening ribs and annular transverse clapboards at corresponding positions of the bottom plate of the steel cover beam, and then welding the top plate of the steel cover beam on the transverse clapboards.
3. And a bottom sealing steel plate is welded on the inner side of the annular diaphragm plate.
4. And welding steel webs on the sides of the top plate and the bottom plate of the steel cover beam to form a box-shaped section, and forming a closed space with the bottom sealing steel plate at the support supporting position.
5. And welding a pad annular steel plate and a shear nail at the position of a pad of a support of the steel cover beam top plate.
6. The steel bent cap is integrally coated in a factory to complete a complete anticorrosive coating system.
7. And hoisting the steel cap beam to the bridge position to complete the connection with the pier column to form a permanent stable structure.
8. Concrete pouring is carried out through the grout passing holes in the positions of the cushion stones, so that the cushion stone concrete and the concrete filled in the bent cap are integrated.
7. Performing steam curing on the stone-filled concrete, completing the construction of the steel cover beam, and hoisting the upper structure of the bridge
It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a stiffening rib structure of steel bent cap support position department, includes steel bent cap roof board (1), steel bent cap bottom plate (2) and steel bent cap web (3), steel bent cap roof board (1), steel bent cap bottom plate (2) and steel bent cap web (3) form closed cross-section, its characterized in that through the welding: the inner side of the steel bent cap top plate (1) is welded with a bent cap top plate stiffening rib (4) along the longitudinal direction; the multi-channel annular diaphragm plate (5) is arranged in the capping beam in the support setting range, the multi-channel annular diaphragm plate (5) is welded with the steel capping beam top plate (1), the steel capping beam bottom plate (2) and the steel capping beam web plate (3) in the capping beam, a groove (12) matched with the stiffening rib (4) of the capping beam top plate is formed in the top of the multi-channel annular diaphragm plate (5), a bottom sealing steel plate (6) is welded at the bottom of the multi-channel annular diaphragm plate (5), a plurality of sealing spaces are formed among the annular diaphragm plate (5), the bottom sealing steel plate (6) and the steel capping beam top plate (1), and concrete is poured in the sealing spaces to form the in-box concrete (8), a pad stone annular steel plate (9) is arranged on the outer side of the steel bent cap top plate (1), and pouring the cushion concrete into the cushion annular steel plate (9) to form the cushion concrete (10).
2. A stiffener construction at a steel cap beam support location according to claim 1 characterized by: annular diaphragm (5) and steel bent cap roof (1), steel bent cap bottom plate (2) and steel bent cap web (3) vertical welding, bent cap roof stiffening rib (4) vertical welding is in the inboard of steel bent cap roof (1).
3. A stiffener construction at a steel cap beam support location according to claim 1 characterized by: the bottom sealing steel plate (6) is vertically welded on the inner side of the annular diaphragm plate (5) and forms a plurality of closed spaces with the steel cover beam top plate (1), and the closed spaces are filled with micro-expansion concrete.
4. A stiffener construction at a steel cap beam support location according to claim 1 characterized by: the bottom sealing steel plate (6) is arranged in a convex shape so as to be tightly attached to the annular diaphragm plate (5) and the steel capping beam top plate (1).
5. A stiffener construction at a steel cap beam rest location according to claim 1, characterized in that: and the top of the back cover steel plate (6) is provided with a shear nail (7) so as to ensure the quality of concrete in the closed space.
6. A stiffener construction at a steel cap beam support location according to claim 1 characterized by: the top of steel bent cap roof board (1) sets up the support bed stone, support bed stone outer fringe is surrounded by bed stone annular steel sheet (9) and is the rectangle, the top of steel bent cap roof board (1) is provided with shear force nail (7) to guarantee being connected of steel and concrete.
7. A stiffener construction at a steel cap beam support location according to claim 1 characterized by: the upper part of the annular diaphragm plate (5) is provided with a first grout passing hole (11), so that the concrete has fluidity in the process of pouring the concrete (8) in the box.
8. A stiffener construction at a steel cap beam support location according to claim 1 characterized by: and a second grout passing hole (13) is formed in the steel cap beam top plate (1) so that the stone concrete (10) and the in-box concrete (8) are connected into a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220920622.6U CN217517348U (en) | 2022-04-20 | 2022-04-20 | Stiffening rib structure at steel cover beam support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220920622.6U CN217517348U (en) | 2022-04-20 | 2022-04-20 | Stiffening rib structure at steel cover beam support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217517348U true CN217517348U (en) | 2022-09-30 |
Family
ID=83371276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220920622.6U Active CN217517348U (en) | 2022-04-20 | 2022-04-20 | Stiffening rib structure at steel cover beam support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217517348U (en) |
-
2022
- 2022-04-20 CN CN202220920622.6U patent/CN217517348U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108842593B (en) | Large-span assembled steel-concrete composite beam and manufacturing method thereof | |
| CN109371836A (en) | A kind of prefabricated assembled floorings splicing structure | |
| CN103938549A (en) | Construction method for fabricated type corrugated steel inclined web combined beam | |
| CN104612285B (en) | A kind of concealed truss energy-consuming shear wall and its construction method | |
| CN103669665A (en) | Elevation difference joint construction technology for steel bar truss floor deck construction | |
| CN217517348U (en) | Stiffening rib structure at steel cover beam support | |
| CN111455802A (en) | Bridge upper part assembly type combined structure and construction process thereof | |
| KR20160073710A (en) | Prestressed Steel-Concrete Composite Box Girder, Bridge using such Composite Box Girders, and Continuous Structure of such Composite Box Girders | |
| CN109487674A (en) | Assembling tank-shaped composite beam bridge | |
| CN203856112U (en) | Novel profile steel combined overhung floor structure | |
| CN104047223A (en) | Light composite structure bridge and construction method thereof | |
| KR102131498B1 (en) | Composite beam and floor structure and joint structure between composite beam and column | |
| CN218596885U (en) | Temporary hinge structure of steel bent cap and prefabricated stand column in construction of asymmetrically distributed viaduct | |
| KR101454888B1 (en) | Circle steel girder having horizontal support and girder bridge | |
| CN213653811U (en) | Structure of deformation joint of heavy-load ground of factory building | |
| CN210395121U (en) | Steel platform combines portable thick liquid board decking construction frock of ending of broach board formula | |
| CN112854579A (en) | Profiled steel sheet section steel supporting system and construction method | |
| CN209742220U (en) | Prefabricated composite structure column based on corrugated web H-shaped steel | |
| CN209260968U (en) | Channel steel shear wall structure and its with basis connection structure | |
| JPS6361443B2 (en) | ||
| CN210117639U (en) | Assembled box-shaped combined beam bridge | |
| KR101883116B1 (en) | Steel bridge supported by hybrid structures | |
| CN215054423U (en) | Profiled steel sheet section steel support system | |
| CN218814636U (en) | Steel beam concrete connection structure | |
| CN213013884U (en) | Bridge structure connecting node |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |