CN112832118A - Rod piece conversion structure and rod piece connecting structure - Google Patents
Rod piece conversion structure and rod piece connecting structure Download PDFInfo
- Publication number
- CN112832118A CN112832118A CN202110026329.5A CN202110026329A CN112832118A CN 112832118 A CN112832118 A CN 112832118A CN 202110026329 A CN202110026329 A CN 202110026329A CN 112832118 A CN112832118 A CN 112832118A
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- shaped
- box
- rod piece
- section
- rod
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- 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
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a rod piece conversion structure and a rod piece connecting structure, wherein the rod piece connecting structure comprises a rod piece with a cross section shaped like a Chinese character 'wang', a splice plate and a rod piece conversion structure, the rod piece conversion structure comprises a box-shaped main body, a plurality of transverse partition plates and four longitudinal stiffening ribs, the transverse partition plates are arranged at certain intervals, the box-shaped main body comprises four box walls, and the left ends of a pair of oppositely arranged box walls are provided with two symmetrical U-shaped openings; the transverse partition plate is positioned in the inner cavity of the box-type main body and is perpendicular to the central axis of the box-type main body; the four longitudinal stiffening ribs are respectively and vertically fixed on the inner walls of the four box walls, extend leftwards along the center line of the box wall and are gradually heightened, and the four longitudinal stiffening ribs are intersected at the same position on the left side of the rightmost transverse clapboard. The rod piece conversion structure enables the box-shaped section rod piece and the king-shaped section rod piece to be spliced into a king-shaped fixing piece through the rod piece connection structure, force transmission is uniform and smooth, and stress concentration caused by sudden change of the section is avoided.
Description
Technical Field
The invention relates to the technical field of bridge engineering, in particular to a rod piece conversion structure and a rod piece connecting structure.
Background
The box-shaped section has larger rigidity in the surface and outside the surface and is mostly used for the compression bar with larger internal force and length, but the assembly, welding and site installation of the connecting bolt of the box-shaped section are more labor-consuming and troublesome, the fatigue allowable stress amplitude of the fatigue detail of the box-shaped section is lower, and the H-shaped section is often adopted more because the assembly is simple, the site installation and connection are convenient, and the fatigue allowable stress amplitude of the fatigue detail of the section is higher.
Often adopt the box cross-section to the great depression bar of atress when the girder steel is refined to design, preferentially select for use H type cross-section to the member that fatigue control designed, nevertheless to the great member of fatigue stress width, adopt a neotype king style of calligraphy cross-section for increasing cross-sectional area under the prerequisite that the control cross-sectional plate is thick. Therefore, a reliable conversion structure is needed to be adopted, so that uniform and smooth force transmission of the box-shaped section and the king-shaped section is ensured, and stress concentration at the sudden change position of the section is avoided.
Disclosure of Invention
The invention provides a rod piece conversion structure and a rod piece connecting structure, which are used for ensuring uniform and smooth transmission force of a box-shaped section and a king-shaped section and avoiding stress concentration at a sudden change position of the section.
In a first aspect, the present invention provides a bar stock conversion structure, comprising:
the box-type main body comprises four box walls, wherein two symmetrical U-shaped openings are formed in the left ends of a pair of oppositely arranged box walls;
a plurality of transverse partition plates which are arranged at intervals and are positioned in the inner cavity of the box-type main body and are vertical to the central axis of the box-type main body; and
and the four longitudinal stiffening ribs are respectively and vertically fixed on the inner walls of the four box walls, extend leftwards along the center line of the box wall and are gradually heightened, and the four longitudinal stiffening ribs are intersected at the same position on the left side of the rightmost transverse clapboard.
On the basis of the technical scheme, the right end of the rod piece conversion structure is of a box-shaped cross section, the middle section of the rod piece conversion structure is of a Chinese character tian-shaped cross section, the left end of the rod piece conversion structure is of a Chinese character tian-shaped cross section, the box-shaped cross section of the right end is evenly and smoothly transited to the Chinese character tian-shaped cross section of the middle section through four longitudinal stiffening ribs, and the Chinese character tian-shaped cross section of the middle section is evenly and smoothly transit.
On the basis of the technical scheme, the left end of the box wall provided with the U-shaped opening is provided with a longitudinal small short rib connected with the longitudinal stiffening rib or the adjacent box wall.
On the basis of the technical scheme, the U-shaped opening is positioned on the left side of the leftmost transverse partition plate.
On the basis of the technical scheme, the intersection line of the four longitudinal stiffening ribs is the central axis of the box-shaped main body.
On the basis of the technical scheme, the box main body of the rod piece conversion structure is an extension section of a common box section rod piece of a bridge steel structure, and the end part of the extension section is in a cross section shaped like a Chinese character 'wang'.
On the basis of the technical scheme, the box wall provided with the U-shaped opening is two horizontal box walls.
A rod connection structure comprising: the novel steel pipe comprises a rod piece with a king-shaped cross section, a splicing plate and the rod piece conversion structure, wherein the rod piece with the king-shaped cross section is bolted at the left end of the rod piece conversion structure through the splicing plate.
On the basis of the above technical scheme, the king-shaped cross section rod piece includes:
two corresponding paired vertical plates which are bolted on the box wall at the left end of the rod conversion structure through a splice plate;
the horizontal plate is vertically fixed between the two vertical plates to form an H-shaped rod piece and is bolted on the longitudinal stiffening rib at the left end of the rod piece conversion structure through a splice plate; and
and the stiffening plate is vertically fixed on the horizontal plate and is bolted on the longitudinal stiffening rib at the left end of the member conversion structure through the splicing plate.
On the basis of the technical scheme, when the vertical plate, the horizontal plate, the stiffening plate and the corresponding plate of the rod piece conversion structure have thickness difference, the filling plate is arranged at the splicing position to compensate the thickness difference.
The invention has the following advantages and beneficial effects:
according to the rod piece conversion structure and the rod piece connecting structure provided by the invention, the box-shaped section can be uniformly and smoothly transited into the cross section shaped like a Chinese character 'tian' and then uniformly and smoothly transited into the cross section shaped like a Chinese character 'wang', so that the rigidity of the cross section is uniformly and smoothly transited; the connecting structure of the rod pieces can ensure that the box-shaped section rod pieces and the king-shaped section rod pieces are spliced into the king-shaped fixing pieces, force transmission is uniform and smooth, stress concentration caused by section mutation is avoided, and the fatigue performance is excellent.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic side elevation structure view of a rod connection structure suitable for a bridge steel structure according to an embodiment of the present invention;
FIG. 2 is a schematic top plan view of the rod connecting structure for bridge steel structure shown in FIG. 1;
FIG. 3 is a schematic bottom plan view of the rod connecting structure for bridge steel structure shown in FIG. 1;
FIG. 4 is a schematic sectional view of the rod connecting structure 1-1 of FIG. 1, which is adapted to the bridge steel structure;
FIG. 5 is a schematic sectional view 2-2 of the rod connecting structure for a bridge steel structure shown in FIG. 1;
FIG. 6 is a schematic sectional view of a rod connecting structure 1a-1a adapted for use in a bridge steel structure shown in FIG. 1;
FIG. 7 is a schematic cross-sectional view of a rod connecting structure 1b-1b of the structure for a bridge steel structure shown in FIG. 1;
FIG. 8 is a schematic cross-sectional view 2a-2a of the rod connecting structure of FIG. 1, which is adapted for use in a bridge steel structure;
FIG. 9 is a schematic cross-sectional view 2b-2b of the rod connecting structure for a bridge steel structure shown in FIG. 1;
FIG. 10 is a cross-sectional view of the rod connecting structure for bridge steel structures shown in FIG. 1, taken along line 2c-2 c;
FIG. 11 is a schematic cross-sectional view 2d-2d of the rod connecting structure of FIG. 1, which is adapted for use in a bridge steel structure;
in the figure: 11-a vertical plate; 12-a horizontal plate; 13-a stiffening plate; 21-a top plate; 22-a base plate; 23-a web; 24-web stiffeners; 25-a roof stiffener; 25 a-floor stiffener; 26-transverse partitions; 27-U shaped opening; 31-a splice plate; 32-filling board.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It is to be noted that, in the present invention, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
As shown in fig. 1, an embodiment of the present invention provides a rod connection structure suitable for a bridge steel structure, where the bridge structure is used as an application scenario, and the rod connection structure includes: the steel bridge comprises a king-shaped section rod piece, splice plates and a rod piece conversion structure arranged at the left end of the box-shaped section rod piece, and is used for connecting the box-shaped section rod piece and the king-shaped section rod piece commonly used in a bridge steel structure. The rod piece conversion structure can realize that the bridge steel structure rod piece is uniformly and smoothly transited from a box-shaped section to a field-shaped section and then uniformly and smoothly transited to a king-shaped section, so that the rigidity of the section is uniformly and smoothly transited; the connecting structure of the rod pieces can ensure that the box-shaped section rod pieces and the king-shaped section rod pieces are spliced into the king-shaped fixing pieces, force transmission is uniform and smooth, stress concentration caused by section mutation is avoided, and the fatigue performance is excellent.
As shown in fig. 1 to 11, a rod conversion structure suitable for a bridge steel structure according to an embodiment of the present invention includes:
the box-type main body comprises four box walls, wherein two symmetrical U-shaped openings 27 are formed in the left ends of a pair of oppositely arranged box walls;
a plurality of transverse partition plates 26 which are arranged at intervals, are positioned in the inner cavity of the box-shaped main body and are vertical to the central axis of the box-shaped main body; and
four longitudinal stiffening ribs which are respectively and vertically fixed on the inner walls of the four box walls, extend leftwards along the center line of the box wall and are gradually heightened, and are intersected at the same position on the left side of the rightmost transverse clapboard 26.
Specifically, the box-type main body of the member conversion structure is an extension section of a common box-type section member for a bridge steel structure, the box-type main body comprises a top plate 21, a bottom plate 22 and two webs 23, the four box walls comprise a top plate stiffening rib 25, a bottom plate stiffening rib 25a and two web stiffening ribs 24, and the four longitudinal stiffening ribs are lower in height near the box-type section member main body to form a box-type section 2a-2a (see fig. 8); the four longitudinal stiffening ribs gradually rise leftwards until the four longitudinal stiffening ribs are simultaneously converged at the left side of the rightmost transverse partition plate 26, the convergence line is the central axis of the box-shaped main body, and at the moment, the cross section is uniformly and smoothly transited into a cross section 2b-2b shaped like a Chinese character tian (see figure 9); after passing through a transition section with a cross section shaped like a Chinese character 'tian', two U-shaped openings 27 are formed in the top plate 21 and the bottom plate 22 on the left side of the leftmost transverse partition plate 26, and only the left web plate 23, the right web plate 23 and four crossed longitudinal stiffening ribs are reserved, so that the cross section is uniformly and smoothly transitioned into a cross section shaped like a Chinese character 'wang' 2c-2c (see fig. 10).
As shown in fig. 9, at the right end of the rod conversion structure, the top plate 21, the bottom plate 22 and the two webs 23 form a horizontal box-shaped main body, four longitudinal stiffening ribs in the cavity of the box-shaped main body are crossed and crossed, so that the middle section of the rod conversion structure is uniformly and smoothly transited to a cross section in a shape like a Chinese character tian, and the cross section in the middle section is uniformly and smoothly transited to a cross section in a shape like a Chinese character wang at the left end through a U-shaped opening 27 formed in the top plate 21.
In some embodiments, the left ends of the top plate 21 and the bottom plate 22 provided with the U-shaped openings 27 retain longitudinal small short ribs connected with longitudinal stiffening ribs or adjacent box walls, and the longitudinal small short ribs are stiffening ribs of the top plate 21 and the bottom plate 22 to the top plate stiffening ribs 25 and the web plates 23 after the sections are suddenly changed, so that the section rigidity is smoothly transited, and uneven force transmission caused by sudden changes of stress is avoided. As shown in fig. 2 and 3, the two U-shaped openings 27 formed at the left end of the top plate 21 are symmetrical with respect to the top plate stiffener 25, the two U-shaped openings 27 formed at the left end of the bottom plate 22 are symmetrical with respect to the bottom plate stiffener 25a, only the portion of the top plate 21 between the two U-shaped openings 27 connecting the top plate stiffener 25 and the portion of the left and right webs 23 connected at both sides thereof are reserved, and only the portion of the bottom plate 22 between the two U-shaped openings 27 connecting the bottom plate stiffener 25a and the portion of the left and right webs 23 connected at both sides thereof are reserved, so that the left end of the rod conversion structure has a cross. Preferably, the U-shaped opening 27 is an outward-flaring U-shaped notch, so that the box-shaped main body is evenly and smoothly transited from the cross section shaped like a Chinese character tian in the middle section to the cross section shaped like a Chinese character wang in the left end, and stress concentration caused by sudden change of the cross section is avoided.
The rod connecting structure provided in the embodiment of the present invention includes: the novel rod piece comprises rod pieces with the shape of the Chinese character 'wang', splicing plates and a rod piece conversion structure, wherein the rod pieces with the shape of the Chinese character 'wang' are bolted at the left end of the rod piece conversion structure through the splicing plates 31.
Referring to fig. 6 and 11, the rod member with the cross section shaped like a Chinese character 'wang' according to the embodiment of the present invention includes:
two corresponding pairs of risers 11 bolted by means of a splice plate 31 to the two webs 23 at the left end of the bar transition;
the horizontal plate 12 is vertically fixed between the two vertical plates 11 to form an H-shaped rod and is bolted on the two web stiffening ribs 24 at the left end of the rod conversion structure through a splice plate 31; and
and the stiffening plate 13 is vertically fixed on the horizontal plate 12 and is bolted on the top plate stiffening rib 25 and the bottom plate stiffening rib 25a at the left end of the rod member conversion structure through a splicing plate 31.
Referring to fig. 7, on the basis of the above technical solution, when there is a thickness difference between the vertical plate 11, the horizontal plate 12, the stiffening plate 13 and the corresponding plate of the bar conversion structure, a filler plate 32 is provided at the splice to compensate for the thickness difference.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A rod conversion structure, comprising:
the box-type main body comprises four box walls, wherein two symmetrical U-shaped openings are formed in the left ends of a pair of oppositely arranged box walls;
the transverse partition plates are arranged at intervals, are positioned in the inner cavity of the box-shaped main body and are perpendicular to the central axis of the box-shaped main body; and
and the four longitudinal stiffening ribs are respectively and vertically fixed on the inner walls of the four box walls, extend leftwards along the center line of the box wall and are gradually heightened, and the four longitudinal stiffening ribs are intersected at the same position on the left side of the rightmost transverse clapboard.
2. The rod conversion structure according to claim 1, wherein: the right end of the rod piece conversion structure is box-shaped, the middle section of the rod piece conversion structure is rectangular-shaped, the left end of the rod piece conversion structure is rectangular-shaped, the box-shaped section of the right end is uniformly and smoothly transited into the rectangular-shaped section of the middle section through the four longitudinal stiffening ribs, and the rectangular-shaped section of the middle section is uniformly and smoothly transited to the rectangular-shaped section of the left end through the U-shaped opening.
3. The rod conversion structure according to claim 2, wherein: and a longitudinal small short rib connected with the longitudinal stiffening rib or the adjacent tank wall is reserved at the left end of the tank wall provided with the U-shaped opening.
4. The rod conversion structure according to any one of claims 1 to 3, wherein: the U-shaped opening is located on the left side of the leftmost transverse partition.
5. The rod conversion structure according to claim 1, wherein: the intersection line of the four longitudinal stiffening ribs is the central axis of the box-shaped main body.
6. The rod conversion structure according to claim 1, wherein: the box main body of the rod piece conversion structure is an extension section of a common box-shaped section rod piece of a bridge steel structure, and the end part of the extension section is in a cross section shaped like a Chinese character 'wang'.
7. The rod conversion structure according to claim 6, wherein: the box wall provided with the U-shaped opening is two horizontal box walls.
8. A rod connection structure, comprising: the rod piece conversion structure of any one of claims 1 to 7, the rod piece with the V-shaped cross section bolted to the left end of the rod piece conversion structure of any one of claims 1 to 7 through the splice plate.
9. The rod connecting structure according to claim 8, wherein: the king-shaped cross section rod piece includes:
two corresponding paired vertical plates bolted to the tank wall at the left end of the rod conversion structure through splice plates;
the horizontal plate is vertically fixed between the two vertical plates to form an H-shaped rod piece and is bolted on the longitudinal stiffening rib at the left end of the rod piece conversion structure through a splice plate; and
and the stiffening plate is vertically fixed on the horizontal plate and is bolted on the longitudinal stiffening rib at the left end of the member conversion structure through a splicing plate.
10. The rod connecting structure according to claim 9, wherein: and when the vertical plate, the horizontal plate or the stiffening plate has thickness difference with the corresponding plate of the rod conversion structure, a filling plate is arranged at the splicing position to compensate the thickness difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110026329.5A CN112832118B (en) | 2021-01-08 | 2021-01-08 | Rod piece conversion structure and rod piece connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110026329.5A CN112832118B (en) | 2021-01-08 | 2021-01-08 | Rod piece conversion structure and rod piece connecting structure |
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| CN112832118A true CN112832118A (en) | 2021-05-25 |
| CN112832118B CN112832118B (en) | 2022-04-15 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2909066B1 (en) * | 1998-06-23 | 1999-06-23 | パシフィックコンサルタンツ株式会社 | Repair method of existing bridge bearing device |
| JP2005097914A (en) * | 2003-09-24 | 2005-04-14 | Nippon Steel Corp | Square steel box column |
| CN104278751A (en) * | 2014-09-15 | 2015-01-14 | 浙江精工钢结构集团有限公司 | Cross box transfer structure and processing method thereof |
| CN110711961A (en) * | 2019-10-21 | 2020-01-21 | 云南建投钢结构股份有限公司 | Manufacturing method of cross-shaped variable box type node |
| CN111997263A (en) * | 2020-07-29 | 2020-11-27 | 中国建筑一局(集团)有限公司 | Small-section concrete column and large-section steel structure column conversion structure and construction method |
-
2021
- 2021-01-08 CN CN202110026329.5A patent/CN112832118B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2909066B1 (en) * | 1998-06-23 | 1999-06-23 | パシフィックコンサルタンツ株式会社 | Repair method of existing bridge bearing device |
| JP2005097914A (en) * | 2003-09-24 | 2005-04-14 | Nippon Steel Corp | Square steel box column |
| CN104278751A (en) * | 2014-09-15 | 2015-01-14 | 浙江精工钢结构集团有限公司 | Cross box transfer structure and processing method thereof |
| CN110711961A (en) * | 2019-10-21 | 2020-01-21 | 云南建投钢结构股份有限公司 | Manufacturing method of cross-shaped variable box type node |
| CN111997263A (en) * | 2020-07-29 | 2020-11-27 | 中国建筑一局(集团)有限公司 | Small-section concrete column and large-section steel structure column conversion structure and construction method |
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| CN112832118B (en) | 2022-04-15 |
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