CN217579772U - Shelf is assembled to big festival section steel case roof beam of super large variable cross section - Google Patents
Shelf is assembled to big festival section steel case roof beam of super large variable cross section Download PDFInfo
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- CN217579772U CN217579772U CN202220960996.0U CN202220960996U CN217579772U CN 217579772 U CN217579772 U CN 217579772U CN 202220960996 U CN202220960996 U CN 202220960996U CN 217579772 U CN217579772 U CN 217579772U
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Abstract
The utility model discloses an assembled shelf of an oversized variable cross-section large-section steel box girder, which relates to the technical field of manufacturing the oversized variable cross-section large-section steel box girder, and adopts the technical scheme that the assembled shelf comprises stand columns positioned at four corners of the shelf, the stand columns are vertically arranged, and adjacent stand columns are fixedly connected through a lower cross beam; the top ends of the adjacent upright posts are connected through an upper cross beam; the upper sides of the two parallel upper cross beams are fixedly provided with top cross beams, and the length of each top cross beam is smaller than that of the upper cross beam positioned on the lower side of the top cross beam; the lower cross beam is positioned below the upper cross beam. The utility model has the advantages that: this scheme is used for supporting single little festival section when variable cross section big festival section steel box girder assembles, adjusts the linear, and single little festival section bottom plate and the crossing department of cross slab are located to the shelf, supports the bottom plate of festival section through the shelf to guarantee with the support atress and the linear adjustment of festival section.
Description
Technical Field
The utility model relates to a big festival section steel case roof beam of super large variable cross-section preparation technical field, in particular to shelf is assembled to big festival section steel case roof beam of super large variable cross-section.
Background
In recent years, the bridge construction industry in China is rapidly developed, steel structure bridges are good in earthquake resistance, convenient to maintain, light in dead weight, short in construction period, green and environment-friendly, and convenient to transport and erect, the proportion of the steel structure bridges in the domestic bridge field is increasing, and traditional concrete pouring beam sections are heavy in self weight, inconvenient to transport and complex in erection method, and more steel structure bridges are used for replacing the traditional concrete pouring beam sections. The variable cross-section steel box girder is increasingly used by design houses when a bridge is designed, and meanwhile, in order to reduce the field workload of bridge positions and avoid the large-batch expenditure of bridge position resources, a large-section manufacturing and shipping mode is increasingly adopted, so that a large-section bridge of the large-span variable cross-section steel box girder becomes a great trend.
Conventional flat steel box girder is the uniform cross section structure, the bottom plate of roof beam section is on same water flat line, bottom plate and roof are on same elevation, variable cross section form steel box girder, the festival section bottom plate is not on same water flat line, the biggest difference in height of bottom plate reaches 3.5 meters between each little festival section, the difficult assurance of linear and the ring mouth matching degree of festival section, variable cross section steel box girder has the difference in height because of the bottom plate simultaneously, when single little festival section is transported, the unable direct jacking section bottom plate of module car.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the to-be-solved technical problem of the utility model is to provide the shelf is assembled in the preparation of super large variable cross section large-section steel box girder. The problems that in the technology, variable cross-section steel box girder segments are assembled from a workshop, the workshop is transported, line-shaped adjustment is assembled on large segments in an outfield, and the bed-jig is assembled on the segments can be effectively solved.
The utility model provides a shelf is assembled to big festival section steel case roof beam of super large variable cross-section.
The technical scheme is that the shelf comprises upright columns positioned at four corners of the shelf, wherein the upright columns are vertically arranged, and adjacent upright columns are fixedly connected through a lower cross beam; the top ends of the adjacent upright posts are connected through an upper cross beam;
top cross beams are fixedly arranged on the upper sides of the two parallel upper cross beams, and the length of each top cross beam is smaller than that of the upper cross beam on the lower side of the top cross beam;
the lower cross beam is positioned below the upper cross beam.
Preferably, the lower cross beam is horizontally arranged;
the heights of the two upright columns positioned on the same side of the shelf are smaller than those of the two upright columns positioned on the other side of the shelf;
the upper cross beam comprises a pair of horizontal cross beams and a pair of inclined cross beams; the two horizontal cross beams and the two inclined cross beams are respectively parallel;
the horizontal cross beam is erected on the top ends of the two equal-height stand columns, and the inclined cross beam is erected on the top ends of the two unequal-height stand columns.
The inclination of the inclined cross beam is set according to the height difference of the steel box girder bottom plate with the variable cross section.
Preferably, the top cross beam is fixedly arranged on the upper side of the horizontal cross beam.
Preferably, one end of the top cross beam is flush with the upper cross beam on the lower side of the top cross beam, and the other end of the top cross beam is spaced from the end part of the upper cross beam on the lower side of the top cross beam. The space formed by the distance is used for placing the beam adjusting jack.
Preferably, a reinforcing rod group is fixedly arranged between the upper cross beam and the lower cross beam.
Preferably, the reinforcing rod group comprises three vertical rod groups and one inclined rod group;
the two upright rod groups are positioned between the horizontal cross beam and the lower cross beam, and the other upright rod group is positioned between the inclined cross beam with low horizontal height and the corresponding lower cross beam;
the inclined rod group is positioned between the inclined cross beam with high horizontal height and the corresponding lower cross beam.
Preferably, the upright rod group comprises a plurality of upright rods vertically arranged between the upper cross beam and the lower cross beam;
the inclined rod group comprises a vertical rod which is vertically arranged between the inclined cross beam and the lower cross beam, and two inclined rods which are positioned at two sides of the vertical rod; the vertical rod is positioned on the upper side of the middle part of the lower cross beam, the upper end of the inclined rod is positioned at the joint of the inclined cross beam and the upright post, and the lower end of the inclined rod is close to the middle part of the lower cross beam.
Preferably, a base plate is fixedly arranged at the bottom end of the upright post, and a reinforcing plate is fixedly arranged between the upper side surface of the base plate and the outer side of the upright post;
the reinforcing plate is provided with a plurality of columns which are uniformly distributed in a circumferential array by taking the columns as axes.
Preferably, the upper cross beam and the lower cross beam are formed by transversely and fixedly connecting at least three I-shaped steels.
Preferably, openings are reserved on the upper side and the lower side of the splicing position of two adjacent I-shaped steels of the upper cross beam, and the angle of each opening is greater than or equal to 45 degrees.
Preferably, the distance between the lower cross beam and the bottom end of the upright post is more than or equal to 1.4m.
Preferably, the upright column is a vertically arranged cylinder or circular tube.
The embodiment of the utility model provides a beneficial effect that technical scheme brought is: this scheme is used for supporting single little segmental region when variable cross section big segmental steel box girder assembles, adjusts the linear, and single little segmental region bottom plate and the crossing department of cross slab are located to the shelf, support the bottom plate of segmental region through the shelf to guarantee with the support atress and the linear adjustment of segmental region. By combining the specific shape of the shelf in the scheme, the change of the linear height difference of the steel box girder bottom plate with the variable cross section can be better adapted.
Drawings
Fig. 1 is a schematic three-dimensional structure diagram of an embodiment of the present invention.
Fig. 2 is a top view of an embodiment of the present invention.
Fig. 3 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A of fig. 2.
Fig. 4 is a sectional view taken along line B-B of fig. 2.
Fig. 5 is a cross-sectional view taken along line C-C of fig. 2.
Fig. 6 is a cross-sectional view taken along line D-D of fig. 2.
Fig. 7 is a cross-sectional view taken along line E-E of fig. 4.
Fig. 8 is a sectional view F-F of fig. 6.
Fig. 9 is an enlarged view of part I of fig. 4.
Fig. 10 is a schematic diagram of splicing i-steel according to an embodiment of the present invention.
Fig. 11 is a partial enlarged view II of fig. 10.
Fig. 12 is a partially enlarged view III of fig. 10.
Wherein the reference numerals are: 1. a column; 2. a lower cross beam; 3. an upper cross beam; 31. a horizontal cross beam; 32. a tilt beam; 4. a top cross beam; 5. a vertical rod group; 6. a set of diagonals; 7. a base plate; 8. a reinforcing plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that, in case of conflict, the embodiments and features of the embodiments of the present invention may be combined with each other.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
Example 1
Fig. 1 is a three-dimensional display diagram for convenience of understanding only, and is not an actual design diagram of the present solution. Referring to fig. 1 to 12, the utility model provides an assembly shelf for an ultra-large variable cross-section large-section steel box girder, which is used for supporting a single small section when the variable cross-section large-section steel box girder is assembled and adjusting the line shape, the shelf is arranged at the intersection of a single small-section bottom plate and a diaphragm plate, vertical upright posts 1 are arranged around the shelf, and the bottom plate of the section is supported by the upright posts 1 so as to ensure the support stress and the line shape adjustment of the section;
the shelf comprises an upright post 1, a lower cross beam 2 and an upper cross beam 3, the upright post 1 is arranged on the periphery of the shelf, the upright post 1, the lower cross beam 2 and the upper cross beam 3 are fixedly welded, a shelf main structure adopts a truss form, the lower cross beam 2 and the upper cross beam 3 at the bottom adopt an I-steel three-splicing structure, the lower cross beam 2 is used for lifting and transferring the roof of the module, and the upper cross beam 3 guarantees the strength and also considers the beam adjusting process during the assembly of external large sections;
the lower cross beam 2 of the assembled shelf is constructed by I-shaped steel, the lower cross beam 2 and the 4 upright posts 1 are welded and fixed to form a frame structure, and the height of the lower cross beam 2 from the ground is 1.4m, so that the lowest walking height of the segmental transfer module vehicle is facilitated;
the upper cross beam 3 of the assembly shelf is made of I-shaped steel, the end part of the upper cross beam 3 is welded and fixed with the upright post 1, the upper cross beam 3 changes according to the change of the linear height difference of the variable-section steel box girder bottom plate, and meanwhile, the position of a jack for assembling and adjusting the beam by sections is reserved on the upper cross beam 3 and is used for adjusting the longitudinal linear shape of the sections;
the bottom support legs of the assembled shelf are welded and fixed by using a base plate 7 and a lateral reinforcing plate 8 so as to reinforce the strength of the support legs at the positions contacting with the ground;
a reinforcing rod group is arranged between the upper cross beam and the lower cross beam of the assembled shelf, and the truss structure is adopted, so that the stress of the shelf is dispersed to the upper cross beam and the lower cross beam and is transmitted to the bottom support legs, and the integral stress of the whole shelf is ensured;
example 2
Referring to fig. 2 to 12, the following technical solutions are adopted in the present embodiment: the assembly shelf comprises upright columns 1, wherein the upright columns 1 are arranged on the periphery of the assembly shelf, lower cross beams 2 are arranged on two sides of each upright column 1 and used for jacking cross beams for transferring small sections of each variable cross-section steel box girder, the lower cross beams 2 and the upright columns 1 are welded and fixed to form a frame structure, the height of each lower cross beam 2 from the ground is 1.4m, and the lowest walking height of a section transferring module vehicle is convenient;
the upper cross beam 3 is constructed by using I-shaped steel, the bottom of the upper cross beam 3 is welded and fixed with the upright post 1, the upper cross beam 3 is arranged at the upper part of the upright post 1, the upper cross beam 3 is contacted with a variable cross-section steel box girder bottom plate through sleepers, the upper cross beam 3 and the top cross beam 4 are changed according to the change of the linear height difference of the variable cross-section steel box girder bottom plate, and meanwhile, the position of a section splicing beam adjusting jack is reserved on the upper cross beam 3 and used for adjusting the longitudinal linear shape of the section splicing;
the base plate 7 and the lateral reinforcing plate 8 are arranged at the bottom of the upright post 1 and are directly contacted with the ground, and the base plate 7 and the reinforcing plate 8 are fixedly welded to strengthen the strength of the support leg at the position contacted with the ground;
the diagonal rod group 6 and the vertical rod group 5 are arranged between the upper cross beam 3 and the lower cross beam 2, a welding form is adopted, the diagonal rod group 6, the stand column 1, the lower cross beam 2 and the upper cross beam 3 form a truss form structure, the stress of the shelf is dispersed to the upper cross beam 3 and the lower cross beam 2 and is transmitted to the support legs of the stand column 1, and the integral stress of the whole shelf is guaranteed.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. The assembled shelf is characterized by comprising stand columns (1) positioned at four corners of the shelf, wherein the stand columns (1) are vertically arranged, and the adjacent stand columns (1) are fixedly connected through a lower cross beam (2); the top ends of the adjacent upright posts (1) are connected through an upper cross beam (3);
wherein, the upper sides of the two parallel upper beams (3) are fixedly provided with a top beam (4), and the length of the top beam (4) is less than that of the upper beam (3) positioned at the lower side thereof;
the lower cross beam (2) is positioned below the upper cross beam (3).
2. The splicing shelf for the ultra-large variable cross-section large-section steel box girder according to claim 1, wherein the lower cross beam (2) is horizontally arranged;
the heights of the two upright posts (1) positioned on the same side of the shelf are smaller than those of the two upright posts (1) on the other side;
the upper cross beam (3) comprises a pair of horizontal cross beams (31) and a pair of inclined cross beams (32); the two horizontal cross beams (31) and the two inclined cross beams (32) are respectively parallel;
the horizontal cross beam (31) is erected at the top ends of the two equal-height upright posts (1), and the inclined cross beam (32) is erected at the top ends of the two unequal-height upright posts (1).
3. The splicing shelf for the ultra-large variable cross-section large-section steel box girder according to claim 2, wherein the top cross beam (4) is fixedly arranged on the upper side of the horizontal cross beam (31).
4. The shelf is assembled to super large variable cross section large section steel box girder of claim 3, characterized by, top crossbeam (4) one end with its downside entablature (3) level, the other end with the downside entablature (3) tip leave the interval.
5. The shelf for assembling the ultra-large variable cross-section large-section steel box girder according to claim 2, wherein a reinforcing rod group is fixedly arranged between the upper cross beam (3) and the lower cross beam (2).
6. The assembling shelf for the ultra-large variable cross-section large-section steel box girder according to claim 5, wherein the reinforcing rod group comprises three vertical rod groups (5) and one diagonal rod group (6);
the two upright rod groups (5) are positioned between the horizontal cross beam (31) and the lower cross beam (2), and the other upright rod group (5) is positioned between the inclined cross beam (32) with low horizontal height and the corresponding lower cross beam (2);
the diagonal rod group (6) is positioned between the diagonal cross beam (32) with high horizontal height and the corresponding lower cross beam (2).
7. The splicing shelf for the ultra-large variable cross-section large-section steel box girder according to claim 6, wherein the upright rod group (5) comprises a plurality of upright rods vertically arranged between the upper cross beam (3) and the lower cross beam (2);
the inclined rod group (6) comprises a vertical rod which is vertically arranged between the inclined cross beam (32) and the lower cross beam (2), and two inclined rods which are positioned at two sides of the vertical rod; the vertical rods are positioned on the upper side of the middle part of the lower cross beam (2), the upper ends of the inclined rods are positioned at the joint of the inclined cross beam (32) and the upright post (1), and the lower ends of the inclined rods are close to the middle part of the lower cross beam (2).
8. The splicing shelf for the oversized variable-cross-section large-section steel box girder according to any one of claims 1 to 7, characterized in that a base plate (7) is fixedly arranged at the bottom end of the upright post (1), and a reinforcing plate (8) is fixedly arranged between the upper side surface of the base plate (7) and the outer side of the upright post (1);
the reinforcing plates (8) are uniformly distributed in a circumferential array by taking the upright posts (1) as axes.
9. The splicing shelf for the oversized variable-cross-section large-section steel box girder according to any one of claims 1-7, characterized in that the upper cross beam (3) and the lower cross beam (2) are formed by transversely and fixedly connecting at least three I-shaped steels.
10. The splicing shelf for the ultra-large variable cross-section large-section steel box girder according to claim 9, wherein openings are reserved on the upper side and the lower side of the splicing position of two adjacent I-shaped steels of the upper cross beam (3), and the angle of each opening is greater than or equal to 45 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220960996.0U CN217579772U (en) | 2022-04-22 | 2022-04-22 | Shelf is assembled to big festival section steel case roof beam of super large variable cross section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220960996.0U CN217579772U (en) | 2022-04-22 | 2022-04-22 | Shelf is assembled to big festival section steel case roof beam of super large variable cross section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217579772U true CN217579772U (en) | 2022-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220960996.0U Active CN217579772U (en) | 2022-04-22 | 2022-04-22 | Shelf is assembled to big festival section steel case roof beam of super large variable cross section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217579772U (en) |
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2022
- 2022-04-22 CN CN202220960996.0U patent/CN217579772U/en active Active
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