CN113605214B - Widening main beam of longitudinal and transverse combination beam - Google Patents
Widening main beam of longitudinal and transverse combination beam Download PDFInfo
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- CN113605214B CN113605214B CN202110969625.9A CN202110969625A CN113605214B CN 113605214 B CN113605214 B CN 113605214B CN 202110969625 A CN202110969625 A CN 202110969625A CN 113605214 B CN113605214 B CN 113605214B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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- 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
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
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Abstract
The invention discloses a widening main beam of a longitudinal and transverse combination beam, which comprises: the side longitudinal beam and the transverse beam in the main beam widening area of the longitudinal and transverse beam type combination beam-stayed bridge are divided respectively, wherein the side longitudinal beam is divided into a first longitudinal beam section, a second longitudinal beam section and a third longitudinal beam section according to the beam end extending direction; the crossbeam adjusts its height and span to match first longeron section, second longeron section and third longeron section according to the difference of the position of locating, has realized that the girder is even in the same direction as the widen, and concrete slab isopachous arranges on the net of vertically and horizontally after the adjustment, realizes smoothly joining the transition, and girder widen adaptability is good.
Description
Technical Field
The application relates to the technical field of bridge engineering, in particular to a widening main beam of a longitudinal and transverse combination beam.
Background
Generally speaking, from the aspects of bridge structure stress, function arrangement, design complexity and the like, when the main bridge adopts a large-span bridge, the section width is preferably arranged to be equal; if the main beam needs to be widened, the widening structure is always arranged in the small-span bridge area of the approach bridge. In particular, in the widened girder of the longitudinal and transverse combination girder, the combination girder generally means that the girder is formed by overlapping a concrete plate and a steel girder in the height direction, the steel girder adopts a form of a staggered structure of a longitudinal girder and a transverse girder, and the concrete plate is overlapped on the top surfaces of the longitudinal girder and the transverse girder to form the longitudinal and transverse combination girder, which is a common girder form in a large-span cable-stayed bridge.
Along with the development of municipal bridge construction, due to the limitation of the overall line of expansion of roads or the requirement of reducing the wiring length of projects, a widened section of a main beam inevitably enters a main bridge area, and if the widened main beam exists in a large-span bridge, the design content of the partial main beam is easy to have the following design defects:
(1) The main beam is not uniform and is widened;
(2) The sections of the main beams are in non-smooth connection and transition;
(3) The main beam is widened and has poor adaptability;
(4) The uniformity of the bridge deck cross slope is poor.
Disclosure of Invention
To the defect that exists among the prior art, this application embodiment provides the widen girder of vertically and horizontally combination beam to the adaptability's that exists when solving the design widen girder problem.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
a widening girder of a longitudinal and transverse combination beam, characterized in that it comprises:
the side longitudinal beam structure comprises a first longitudinal beam section, a second longitudinal beam section and a third longitudinal beam section, the first longitudinal beam section and the third longitudinal beam section are parallel to each other, and two ends of the second longitudinal beam section are respectively connected with the first longitudinal beam section and the third longitudinal beam section; meanwhile, the distance between the first longitudinal beam sections of the two side longitudinal beam structures is smaller than the distance between the third longitudinal beam sections of the two side longitudinal beam structures;
the beam structure comprises a first beam section, a third beam section and a plurality of second beam sections, wherein the first beam section is connected between two first longitudinal beam sections, the third beam section is connected between two third longitudinal beam sections, and the second beam section is connected between the second longitudinal beam sections; and the number of the first and second groups,
the length of each second beam section is different, and from first beam section towards third beam section, increases gradually.
Furthermore, the beam structure comprises a beam top plate, a beam web plate and a beam bottom plate, wherein the beam web plate is arranged between the beam top plate and the beam bottom plate.
Further, the side longitudinal beam structure comprises a longitudinal beam top plate, a longitudinal beam web plate and a longitudinal beam bottom plate, wherein the longitudinal beam web plate is arranged between the longitudinal beam top plate and the longitudinal beam bottom plate, the longitudinal beam top plate is fixedly connected with the cross beam top plate and is coplanar, the longitudinal beam web plate is fixedly connected with the cross beam web plate, and the longitudinal beam bottom plate is fixedly connected with the cross beam bottom plate.
Furthermore, the crossbeam roof sets up on the crossbeam web, and along the horizontal bridge to, the crossbeam roof is from the longitudinal bridge to the central line downward sloping towards both sides gradually to form domatic.
Further, the areas of the two slope surfaces are the same, and the slopes are i.
Further, a height value Ha of the first beam section at the longitudinal bridge center line, a length La of the first beam section, and a height H1 of the first beam section at the position of the connection of the first beam section and the first beam section satisfy the following relation: ha = H1+ La i/2;
the height value Hb of one of the second beam sections at the longitudinal bridge center line, the length Lb of the second beam section and the height H2 of the second beam section at the position where the second beam section is connected with the second beam section satisfy the relation: hb = H2+ Lb × i/2;
the height value Hc of the third beam section at the longitudinal bridge center line, the length Lc of the third beam section and the height H3 of the third beam section at the position of the connection of the third beam section and the third beam section satisfy the relation: hc = H3+ Lc × i/2.
Further, a height value Ha of the first beam section at the longitudinal bridge directional center line < a height value Hb of any one of the second beam sections at the longitudinal bridge directional center line < a height value Hc of the third beam section at the longitudinal bridge directional center line, and in a direction from the first beam section to the third beam section, height values Hb of the plurality of second beam sections at the longitudinal bridge directional center line gradually increase.
Further, an included angle between the first longitudinal beam section and the second longitudinal beam section is α, and α satisfies tan α = Δ B/(2 × Δ L), where Δ B is a difference between a distance between third longitudinal beam sections of the two side longitudinal beam structures and a distance between first longitudinal beam sections of the two side longitudinal beam structures, and Δ L is a distance between the first longitudinal beam section of the side longitudinal beam structure and the corresponding third longitudinal beam section in the longitudinal bridge direction.
Furthermore, an anchor plate is arranged on the side longitudinal beam structure.
Further, the connecting line of the anchor plate and the longitudinal beam top plate is coincident with the axial line of the longitudinal beam web plate.
Compared with the prior art, the invention has the advantages that:
according to the method, side longitudinal beams and cross beams in a main beam widening area of a longitudinal and transverse beam type combined beam cable-stayed bridge are divided respectively according to the general widening information of a road, wherein the side longitudinal beams are divided into a first longitudinal beam section, a second longitudinal beam section and a third longitudinal beam section according to the beam end extending direction; the crossbeam is according to the difference of position, adjusts its height and span and matches first longeron section, second longeron section and third longeron section, has realized that the girder is even in the same direction as the widen, and concrete slab isopachous arranges on the net of moving about freely and quickly after the adjustment, realizes smoothly joining the transition, and girder widen adaptability is good, and side longeron top surface and crossbeam top surface coplane guarantee the uniformity of bridge floor cross slope, and bridge floor cross slope uniformity is guaranteed.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, 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 partial structural schematic view of a main beam structure provided in an embodiment of the present application;
FIG. 2 isbase:Sub>A schematic cross-sectional view taken along line A-A of FIG. 1 according to an exemplary embodiment of the present disclosure;
FIG. 3 is a schematic cross-sectional view taken along line B-B of FIG. 1 according to an exemplary embodiment of the present disclosure;
FIG. 4 is a schematic cross-sectional view taken along line C-C of FIG. 1 according to an exemplary embodiment of the present disclosure;
FIG. 5 is a partial schematic structural view of a second rail section provided in accordance with an embodiment of the present disclosure;
in the figure: 1. a first longitudinal beam section; 2. a second longitudinal beam section; 3. a third longitudinal beam section; 4. a first beam section; 5. a second beam section; 6. a third beam section; 11. a stringer top plate; 12. a stringer web; 13. a longitudinal beam bottom plate; 21. a beam top plate; 22. a beam web; 23. a beam floor; 7. an anchor plate; 8. a concrete slab.
Detailed Description
The invention is further described with reference to the following figures and specific examples. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Specific structural and functional details disclosed herein are merely illustrative of example embodiments of the invention. This invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.
As shown in fig. 1 to 5, a widening girder of a longitudinal and transverse combination beam, comprising:
the side longitudinal beam structure comprises a first longitudinal beam section 1, a second longitudinal beam section 2 and a third longitudinal beam section 3, wherein the first longitudinal beam section 1 and the third longitudinal beam section 3 are parallel to each other, and two ends of the second longitudinal beam section 2 are respectively connected with the first longitudinal beam section 1 and the third longitudinal beam section 3; meanwhile, the distance between the first longitudinal beam sections 1 of the two side longitudinal beam structures is smaller than the distance between the third longitudinal beam sections 3 of the two side longitudinal beam structures.
Two the limit longeron structure is followed the longitudinal bridge is to symmetrical setting, and, along the longitudinal bridge on to the direction, two first longeron section 1 corresponds each other, two second longeron section 2 corresponds each other, two third longeron section 3 corresponds each other, the limit longeron structure realizes its widen structure on first longeron section 1 basis through second longeron section 2 and third longeron section 3.
The distance between the first longitudinal beam section 1 of two side longeron structures is less than the distance between the third longitudinal beam section 3 of two side longeron structures, and carries out the widen transition through second longitudinal beam section 2 between first longitudinal beam section 1 and the third longitudinal beam section 3 to make along the width in longitudinal bridge by the distance between two former first longitudinal beam sections 1 widen to the distance between two third longitudinal beam sections 3.
Crossbeam structure, it includes first crossbeam section 4, third crossbeam section 6 and a plurality of second crossbeam section 5, and first crossbeam section 4 is connected between two first longitudinal girder sections 1, and third crossbeam section 6 is connected between two third longitudinal girder sections 3, and second crossbeam section 5 is connected between second longitudinal girder section 2. And the second beam sections 5 are different in length and gradually increase from the first beam section 4 toward the third beam section 6.
The crossbeam structure is arranged between two limit longeron structures along the horizontal bridge to, and forms the bearing structure of bridge floor load, second crossbeam section 5 is according to two interval setting between the second longeron section 2 is owing to two second longeron sections 2 and first longeron section 1's nonparallel arranges, so that be in two the length of a plurality of second crossbeam sections 5 between the second longeron section 2 is all inequality, and in the different second crossbeam section 5 of a plurality of lengths, is close to more 5 lengths of the second crossbeam section of first longeron section 1 are littleer, are close to more 5 lengths of the second crossbeam section of third longeron section 3 are big more.
And then divide into the limit longeron structure including first longeron section 1, second longeron section 2 and third longeron section 3 through the widen girder with moving about freely and quickly combination beam, with including first crossbeam section 4, the crossbeam structure of third crossbeam section 6 and a plurality of second crossbeam section 5, and arrange it correspondingly, form the systematization setting of widen structure, avoid facing different girder frame demands, unable systematic its girder widen region of arranging, and then reduce the design degree of difficulty of the widen girder of moving about freely and quickly combination beam, improve its adaptability.
Further, the beam structure comprises a beam top plate 21, a beam web 22 and a beam bottom plate 23, wherein the beam web 22 is arranged between the beam top plate 21 and the beam bottom plate 23.
Furthermore, the side longitudinal beam structure comprises a longitudinal beam top plate 11, a longitudinal beam web plate 12 and a longitudinal beam bottom plate 13, wherein the longitudinal beam web plate 12 is arranged between the longitudinal beam top plate 11 and the longitudinal beam bottom plate 13, the longitudinal beam top plate 11 and the cross beam top plate 21 are fixedly connected and coplanar, the longitudinal beam web plate 12 is fixedly connected with the cross beam web plate 22, and the longitudinal beam bottom plate 13 is fixedly connected with the cross beam bottom plate 23.
The first longitudinal beam section 1, the second longitudinal beam section 2 and the third longitudinal beam section 3 are respectively three parts of the side longitudinal beam structure after the side longitudinal beam structure is divided for convenient arrangement, the first longitudinal beam section 1, the second longitudinal beam section 2 and the third longitudinal beam section 3 are not mutually separated parts, a longitudinal beam top plate 11, a longitudinal beam web plate 12 and a longitudinal beam bottom plate 13 which are comprised by the side longitudinal beam structure cover the first longitudinal beam section 1, the second longitudinal beam section 2 and the third longitudinal beam section 3, and the first longitudinal beam section 1 can be understood to comprise the longitudinal beam top plate 11 section, the longitudinal beam web plate 12 and the longitudinal beam bottom plate 13 section in the area; the second longitudinal beam section 2 comprises a longitudinal beam top plate 11 section, a longitudinal beam web plate 12 and a longitudinal beam bottom plate 13 section in the area; the third stringer section 3 comprises a stringer top plate 11 section, a stringer web 12 and a stringer base plate 13 section of this region.
So that the side longitudinal beam structure has better structural uniformity, and when the side longitudinal beam structure is in a stressed state, the longitudinal beam top plates 11, the longitudinal beam web plates 12 and the longitudinal beam bottom plates 13 on the plurality of longitudinal beam sections have integrity, so that the stability of the whole structure is higher.
Further, the beam top plate 21 is arranged on the beam web 22, and along the transverse bridge direction, the beam top plate 21 gradually inclines downwards from the longitudinal bridge to the central line towards two sides to form a slope.
Dome so that the structural bridge floor structure of arranging of crossbeam need not loaded down with trivial details its thickness of adjustment in order to satisfy the design demand under crossbeam roof 21 possesses domatic prerequisite, the bridge floor structure of arranging on the crossbeam roof 21 only need keep even thickness can also possess the domatic of the same slope with domatic the setting originally on its bridge floor structure, reduces it and arranges the degree of difficulty, also in the construction process of difference, avoids great construction error and repeated construction monitoring.
Further, the areas of the two slope surfaces are the same, and the slopes are i.
Two slopes with the same gradient and area are arranged on the top plate 21 of the cross beam, so that the road surfaces on two channels paved on the cross beam structure are kept to be symmetrical with each other, and the design requirement of the road surface is met.
Further, a height value Ha of the first beam section 4 at the longitudinal bridge center line, a length La of the first beam section 4, and a height H1 of the first beam section 1 at the position where the first beam section 1 is connected with the first beam section 4 satisfy the relation: ha = H1+ La i/2;
a height Hb of one second beam segment 5 of the plurality of second beam segments 5 at the longitudinal bridge center line, a length Lb of the second beam segment 5, and a height H2 of a second beam segment 2 at a position where the second beam segment 2 is connected to the second beam segment 5 satisfy the following relation: hb = H2+ Lb × i/2; wherein, the second beam section 5 comprises a plurality of second beam sections 5 with different lengths, and each second beam section 5 is fixedly connected with the second longitudinal beam section 2.
According to the relation: hb = H2+ Lb × i/2, it can be seen that, when the values of the lengths Lb corresponding to the plurality of different second beam segments 5 gradually increase from the first beam segment 4 to the third beam segment 6, the height value Hb of one second beam segment 5 in the plurality of second beam segments 5 at the longitudinal bridge center line changes synchronously with the height H2 of the second beam segment 2 at the position where the second beam segment 2 is connected with the second beam segment 5.
The height value Hc of the third beam section 6 at the longitudinal bridge center line, the length Lc of the third beam section 6 and the height H3 of the third beam section 3 at the position where the third beam section 3 is connected with the third beam section 6 satisfy the relation: hc = H3+ Lc × i/2.
Furthermore, the height values of the beam structures of the first beam section 4, the third beam section 6 and the plurality of second beam sections 5 in the longitudinal bridge direction central line, the height values of the side-to-side beam structure connecting parts connected with the beam structures and the length of the beam structures are kept in the same proportional relation, the applicability and the uniformity of the arrangement process are improved, and the matching change relation between the transverse beams and the longitudinal beams in the width-widened area is improved.
Further, on the basis of the above embodiment, the height value Ha of the first beam section 4 at the longitudinal bridge directional centerline < the height value Hb of any one of the second beam sections 5 at the longitudinal bridge directional centerline < the height value Hc of the third beam section 6 at the longitudinal bridge directional centerline, and the height values Hb of the plurality of second beam sections 5 at the longitudinal bridge directional centerline gradually increase in the direction from the first beam section 4 to the third beam section 6.
Further, the relation among the height H1 of the first girder section 1 position where the first girder section 4 junction is located, the height H2 of the second girder section 2 position where the second girder section 5 junction is located, and the height H3 of the third girder section 3 position where the third girder section 6 junction is located satisfies the relational expression: h1= H2= H3, or H1 < H2 < H3.
Through first crossbeam section 4, the beam structure of third crossbeam section 6 and a plurality of second crossbeam section 5 is in the change relation of the altitude value of vertical bridge to central line department, in order to obtain, when girder widen degree is big more, the height adjustment that the corresponding connection point department of the side longeron structure of connecting of this crossbeam section became uprise, after in order to satisfy the widen region widen, the height that increases the side longeron that corresponds and then improve whole girder's intensity and stability, avoid directly also setting up unnecessary side longeron height increase in the non-widen region, reduce the resource cost waste.
Further, an included angle between the first longitudinal beam section 1 and the second longitudinal beam section 2 is α, and α satisfies tan α = Δ B/(2 × Δ L), where Δ B is a difference between a distance between the third longitudinal beam sections 3 of the two side longitudinal beam structures and a distance between the first longitudinal beam sections 1 of the two side longitudinal beam structures, and Δ L is a distance between the first longitudinal beam section 1 of the side longitudinal beam structure and the corresponding third longitudinal beam section 3 in the longitudinal bridge direction.
Furthermore, an anchor plate 7 is arranged on the side longitudinal beam structure, and the axis of a connecting line of the anchor plate 7 and the longitudinal beam top plate 11 coincides with the axis of the longitudinal beam web plate 12.
And, anchor arm-tie 7 can not establish on the position between first longitudinal beam section 1 and the second longitudinal beam section 2, simultaneously anchor arm-tie 7 can not establish on the position between second longitudinal beam section 2 and the third longitudinal beam section 3 yet, should do position between first longitudinal beam section 1 and the second longitudinal beam section 2 to and the position between second longitudinal beam section 2 and the third longitudinal beam section 3 is the widen position handing-over department of limit longeron structure, this handing-over department can not be located to anchor arm-tie 7, otherwise appears easily anchor arm-tie 7 is connected the condition appearance that became invalid or directly collapse between the limit longeron structure.
When designing the widened main beam of the longitudinal and transverse combination beam, the invention comprises the following steps:
reading the overall information of a road plane, setting a main beam widening structure area of the cable-stayed bridge, determining a main beam widening value delta B and a main beam widening area length delta L, and calculating a horizontal included angle alpha value between an inclined section axis and a horizontal section axis;
dividing a first longitudinal beam section 1, a second longitudinal beam section 2 and a third longitudinal beam section 3 of the longitudinal beam structure in the widened region, and dividing a first transverse beam section 4, a second transverse beam section 5 and a third transverse beam section 6 of the transverse beam structure in the widened region according to the girder widening value delta B and the girder widening region length delta L;
correspondingly arranging a first longitudinal beam section 1, a second longitudinal beam section 2 and a third longitudinal beam section 3 with a first cross beam section 4, a second cross beam section 5 and a third cross beam section 6;
determining the size of a plane structure of the concrete bridge deck according to the shape of a top surface grid formed by the side longitudinal beam structure and the cross beam structure;
arranging the anchor plates 7 in the area of the widened structure and keeping the connecting line of the anchor plates 7 and the longitudinal beam top plate 11 coincident with the axis of the longitudinal beam web 12.
Dividing side longitudinal beams and cross beams in a main beam widening area of the longitudinal and transverse beam type combined beam cable-stayed bridge according to the total road widening information, wherein the side longitudinal beams are divided into a first longitudinal beam section 1, a second longitudinal beam section 2 and a third longitudinal beam section 3 according to the beam end extending direction; the crossbeam is according to the difference of position, adjusts its height and span and matches first longeron section 1, second longeron section 2 and third longeron section 3, has realized that the girder is even in the same direction as the widen, and concrete slab 8 arranges on the net of moving about freely and quickly after the adjustment, just concrete slab 8 can keep direct arrangement under the same thickness prerequisite, and because concrete slab 8's thickness is even, so concrete slab 8 keep with the same slope of domatic on crossbeam roof 21, the longeron roof 11 realizes smooth linking transition, and girder widen adaptability is good, and side longeron top surface and crossbeam top surface coplane guarantee the uniformity of bridge floor cross slope, and bridge floor cross slope uniformity is guaranteed.
It should be understood that the terms first, second, etc. are used merely for distinguishing between descriptions and are not intended to indicate or imply relative importance. Although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of example embodiments of the present invention.
It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, B exists alone, and A and B exist at the same time, and the term "/and" is used herein to describe another association object relationship, which means that two relationships may exist, for example, A/and B, may mean: a alone, and both a and B alone, and further, the character "/" in this document generally means that the former and latter associated objects are in an "or" relationship.
It is to be understood that the terms "upper," "vertical," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship that is conventionally used for placing the disclosed articles of manufacture or that is conventionally understood by those skilled in the art, which is intended merely to facilitate the description of the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning 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 in specific cases to those skilled in the art.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes," and/or "including," when used herein, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, elements, components, and/or groups thereof.
In the following description, specific details are provided to facilitate a thorough understanding of example embodiments. However, it will be understood by those of ordinary skill in the art that the example embodiments may be practiced without these specific details. In other instances, well-known processes, structures and techniques may be shown without unnecessary detail in order to avoid obscuring example embodiments.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. 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 application. Thus, the present application 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 widening main beam of a longitudinal and transverse combination beam is characterized by comprising:
the side longitudinal beam structure comprises a first longitudinal beam section (1), a second longitudinal beam section (2) and a third longitudinal beam section (3), the first longitudinal beam section (1) and the third longitudinal beam section (3) are parallel to each other, and two ends of the second longitudinal beam section (2) are respectively connected with the first longitudinal beam section (1) and the third longitudinal beam section (3); meanwhile, the distance between the first longitudinal beam sections (1) of the two side longitudinal beam structures is smaller than the distance between the third longitudinal beam sections (3) of the two side longitudinal beam structures;
the beam structure comprises a first beam section (4), a third beam section (6) and a plurality of second beam sections (5), wherein the first beam section (4) is connected between two first beam sections (1), the third beam section (6) is connected between two third beam sections (3), and the second beam section (5) is connected between the second beam sections (2); and the number of the first and second groups,
the lengths of the second beam sections (5) are different and gradually increase from the first beam section (4) to the third beam section (6).
2. The widening girder of a crossbar-bonded beam according to claim 1, wherein: the beam structure comprises a beam top plate (21), a beam web plate (22) and a beam bottom plate (23), wherein the beam web plate (22) is arranged between the beam top plate (21) and the beam bottom plate (23).
3. The widening girder of a crossbar-bonded beam according to claim 2, wherein: the side longitudinal beam structure comprises a longitudinal beam top plate (11), a longitudinal beam web plate (12) and a longitudinal beam bottom plate (13), wherein the longitudinal beam web plate (12) is arranged between the longitudinal beam top plate (11) and the longitudinal beam bottom plate (13), the longitudinal beam top plate (11) is fixedly connected with a transverse beam top plate (21) and is coplanar, the longitudinal beam web plate (12) is fixedly connected with a transverse beam web plate (22), and the longitudinal beam bottom plate (13) is fixedly connected with a transverse beam bottom plate (23).
4. The widening girder of a crossbar-bonded beam according to claim 3, wherein: crossbeam roof (21) set up on crossbeam web (22), and along horizontal bridge to, crossbeam roof (21) from vertical bridge to central line down slope towards both sides gradually to form domatic.
5. The widening girder of a crossbar-bonded beam according to claim 4, wherein: the areas of the two slope surfaces are the same, and the slopes are i.
6. The widening girder of a crossbar-bonded beam according to claim 5, wherein:
the height value Ha of the first beam section (4) at the longitudinal bridge center line, the length La of the first beam section (4) and the height H1 of the first beam section (1) at the position of the joint of the first beam section (1) and the first beam section (4) satisfy the relational expression: ha = H1+ La i/2;
the height value Hb of one second beam section (5) in the second beam sections (5) at the longitudinal bridge center line, the length Lb of the second beam section (5) and the height H2 of the second beam section (2) at the position where the second beam section (2) is connected with the second beam section (5) satisfy the following relation: hb = H2+ Lb × i/2;
the height value Hc of the third beam section (6) at the longitudinal bridge center line, the length Lc of the third beam section (6) and the height H3 of the third beam section (3) at the position where the third beam section (3) is connected with the third beam section (6) satisfy the relation: hc = H3+ Lc × i/2.
7. The widened main beam of a crossbar-bonded beam according to claim 6, wherein: the height value Ha of the first beam section (4) at the longitudinal bridge directional center line is less than the height value Hb of any one of the second beam sections (5) at the longitudinal bridge directional center line is less than the height value Hc of the third beam section (6) at the longitudinal bridge directional center line, and the height values Hb of the plurality of second beam sections (5) at the longitudinal bridge directional center line are gradually increased along the direction from the first beam section (4) to the third beam section (6).
8. The widening girder of a crossbar-bonded beam according to claim 1, wherein: an included angle between the first longitudinal beam section (1) and the second longitudinal beam section (2) is alpha, and the alpha satisfies tan alpha = delta B/(2 x delta L), wherein delta B is a difference between a distance between the third longitudinal beam sections (3) of the two side longitudinal beam structures and a distance between the first longitudinal beam sections (1) of the two side longitudinal beam structures, and delta L is a distance between the first longitudinal beam section (1) of the side longitudinal beam structure and the corresponding third longitudinal beam section (3) in the longitudinal bridge direction.
9. The widening girder of a crossbar-bonded beam according to claim 3, wherein: and an anchor plate (7) is arranged on the side longitudinal beam structure.
10. The widening girder of a crossbar-bonded beam according to claim 9, wherein: and the connecting line of the anchor plate (7) and the longitudinal beam top plate (11) is superposed with the axis of the longitudinal beam web plate (12).
Priority Applications (1)
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000008325A (en) * | 1998-06-29 | 2000-01-11 | Nippon Steel Corp | Combined girder structure for floor slab |
| CN103174090A (en) * | 2012-05-15 | 2013-06-26 | 崔一 | Automatic design method of concrete broadening girder bridge |
| CN208563082U (en) * | 2018-07-06 | 2019-03-01 | 中铁大桥勘测设计院集团有限公司 | A kind of combination girder stayed-cable bridge with thickening end bay floorings |
| CN208668245U (en) * | 2018-06-21 | 2019-03-29 | 湖南省交通规划勘察设计院有限公司 | A kind of steel-UHPC combination beam construction for cable-stayed bridge |
| CN110593101A (en) * | 2019-08-16 | 2019-12-20 | 中铁大桥科学研究院有限公司 | Rapid assembling construction method of composite beam cable-stayed bridge |
| CN113279315A (en) * | 2021-05-14 | 2021-08-20 | 中铁大桥勘测设计院集团有限公司 | Plate-truss combined structure with widened upper curve of vertical curve and design method thereof |
-
2021
- 2021-08-23 CN CN202110969625.9A patent/CN113605214B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000008325A (en) * | 1998-06-29 | 2000-01-11 | Nippon Steel Corp | Combined girder structure for floor slab |
| CN103174090A (en) * | 2012-05-15 | 2013-06-26 | 崔一 | Automatic design method of concrete broadening girder bridge |
| CN208668245U (en) * | 2018-06-21 | 2019-03-29 | 湖南省交通规划勘察设计院有限公司 | A kind of steel-UHPC combination beam construction for cable-stayed bridge |
| CN208563082U (en) * | 2018-07-06 | 2019-03-01 | 中铁大桥勘测设计院集团有限公司 | A kind of combination girder stayed-cable bridge with thickening end bay floorings |
| CN110593101A (en) * | 2019-08-16 | 2019-12-20 | 中铁大桥科学研究院有限公司 | Rapid assembling construction method of composite beam cable-stayed bridge |
| CN113279315A (en) * | 2021-05-14 | 2021-08-20 | 中铁大桥勘测设计院集团有限公司 | Plate-truss combined structure with widened upper curve of vertical curve and design method thereof |
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| CN113605214A (en) | 2021-11-05 |
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