CN105714666B - One kind being based on double-layer traffic concrete box-beam bridge lateral stiffening ring - Google Patents
One kind being based on double-layer traffic concrete box-beam bridge lateral stiffening ring Download PDFInfo
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- CN105714666B CN105714666B CN201510967162.7A CN201510967162A CN105714666B CN 105714666 B CN105714666 B CN 105714666B CN 201510967162 A CN201510967162 A CN 201510967162A CN 105714666 B CN105714666 B CN 105714666B
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
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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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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
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Abstract
One kind being based on double-layer traffic concrete box-beam bridge lateral stiffening ring, it is provided is arranged stiffening ring structural strengthening method in double-layer traffic concrete box girder room, it can utilize existing mixed mud bar material, and reduce the dosage of concrete, improve the overall stiffness and holistic resistant behavior of box beam.Also by stiffening ring being arranged along one fixed spacing of span direction, can be carried out reinforcement to structural integrity in double-layer traffic concrete box-beam bridge；The technical solution adopted is that carrying out dependency structure design to stiffening ring in conjunction with double-layer traffic concrete box-beam bridge and frame-generic structure, in the end of double-layer traffic concrete box girder and span direction spaced apart by the stiffening ring of its stress performance setting different size, reinforce the overall performance of box girder bridge；The construction of the suitable small across footpath double-layer traffic bridge in city extensively is particularly suitable for multilane combined highway and metro and urban light rail, multilevel traffic construction.
Description
Technical field
The present invention relates to one kind to be based on double-layer traffic concrete box-beam bridge lateral stiffening ring.
Background technique
Urban land resource day is becoming tight a few days ago, and most built Urban Bridge increasingly congestions, the world has Urban Bridge face
Face the Missions of sustainable development, it, can be wide in face of building although the magnitude of traffic flow can be alleviated by widening bridge
The design and construction of bridge is difficult, take up a large area with the various problems such as cost is high, therefore double-layer traffic bridge be able to be formed and
Development.
The development of double-decker bridge can be divided into two stages, i.e. steel truss double-decker bridge and prestressed concrete box girder double-decker bridge.
In comparison, the former technology maturation, but cost is higher, mainly applies in the Longspan Bridge across river, cross a river, throws in project
Money etc. has achieved good economic benefit；Latter configuration form has all advantages of box-beam structure, more for land used
The Urban Bridge of the middle or small span (30~60m) in city nervous, cost is more expensive, structure type is comparatively single is more real
With.
In order to make full use of existing concrete box girder bridge resource, the alleviation magnitude of traffic flow is limited, cancels conventional normal concrete
Normal concrete box beam is made into double-layer traffic bridge by the diaphragm plate in box beam；The sectional dimension of box girder bridge inherently increases, and leads
Cause its overall performance, degree of stability and mechanical property that will slacken significantly；To make the difficulty for designing the double-decker bridge of concrete box girder
It further increases, the present invention proposes the structural strengthening method of a kind of pair of double-layer traffic concrete box-beam bridge in this context.
Summary of the invention
For above situation, the purpose of the present invention is to provide one kind to be based on double-layer traffic concrete box-beam bridge lateral stiffening
Stiffening ring is arranged in double-layer traffic concrete box girder room in ring, it not only can be reduced the dosage of concrete, but also improve the whole of box beam
Body rigidity and holistic resistant behavior.
Yet another object of the invention is that providing a kind of reality based on double-layer traffic concrete box-beam bridge lateral stiffening ring
Applying method, by stiffening ring being arranged along one fixed spacing of span direction, to structural integrity in double-layer traffic concrete box-beam bridge
It can be carried out reinforcement；In view of box girder bridge is in composite force situation, the spacing that stiffening ring is arranged should be no more than the effective of box girder bridge
Geometric widths remove the geometric widths of box girder bridge behind the edge of a wing of overhanging；The technical solution adopted by the present invention is that combining double-deck hand over
Logical concrete box-beam bridge and frame-generic structure carry out dependency structure design to stiffening ring, in double-layer traffic concrete box girder
The entirety of box girder bridge is reinforced by the stiffening ring of its stress performance setting different size in end and span direction spaced apart
Performance.
To achieve the goals above, a kind of to be based on double-layer traffic concrete box-beam bridge lateral stiffening ring comprising end is horizontal
Lateral stiffening ring, span centre lateral stiffening ring and horizontal stiffener three to stiffening ring, 1/4 span, four, five, six (2a, 2b,
3a, 3b), horizontal stiffener one, two (1a, 1b), inclined stiffener one, two, three (1c, 2c, 3c), vertical ribbed stiffener one, two,
Three (1d, 2d, 3d) with include connect by top plate, median ventral plate, side web, bottom plate, flange plate, support form up and down two parallel planes
And it is equipped with the box-shaped beam body of middle chamber, side cavity.
In order to realize structure of the invention, effect optimization, further step is:
One kind being based on double-layer traffic concrete box-beam bridge lateral stiffening ring, and end cross stiffening ring is arranged in box-shaped beam body
End position, 1/4 span location of box-shaped beam body, the setting of span centre lateral stiffening ring is arranged in lateral stiffening ring at 1/4 span
In the span centre position of box-shaped beam body.
One kind being based on double-layer traffic concrete box-beam bridge lateral stiffening ring, and end cross stiffening ring includes horizontal stiffener
One (1a), horizontal stiffener two (1b), inclined stiffener one (1c) and vertical ribbed stiffener one (1d).
One kind being based on double-layer traffic concrete box-beam bridge lateral stiffening ring, and lateral stiffening ring includes level at 1/4 span
Ribbed stiffener three (2a), horizontal stiffener four (2b), inclined stiffener two (2c) and vertical ribbed stiffener two (2d).
One kind being based on double-layer traffic concrete box-beam bridge lateral stiffening ring, and span centre lateral stiffening ring includes horizontal stiffener
Five (3a), horizontal stiffener six (3b), inclined stiffener three (3c) and vertical ribbed stiffener three (3d).
One kind being based on double-layer traffic concrete box-beam bridge lateral stiffening ring, transverse direction at end cross stiffening ring, 1/4 span
Stiffener is configured with inside stiffening ring and span centre lateral stiffening ring.
One kind being based on double-layer traffic concrete box-beam bridge lateral stiffening ring, transverse direction at end cross stiffening ring, 1/4 span
Stiffening ring and span centre lateral stiffening ring pour forming by concrete material.
One kind be based on double-layer traffic concrete box-beam bridge lateral stiffening ring, horizontal stiffener three, four, five, six (2a, 2b,
3a, 3b) cross sectional shape be isosceles trapezoid, horizontal stiffener one, two (1a, 1b) be chamfer it is trapezoidal, inclined stiffener one,
Two, three (1c, 2c, 3c) and vertical ribbed stiffener one, two, three (1d, 2d, 3d) are rectangle.
One kind being based on double-layer traffic concrete box-beam bridge lateral stiffening ring, and middle chamber is by top plate middle part through median ventral plate and bottom
Plate connection composition, side cavity are made of bottom plate through the connection of side web, median ventral plate and top plate；Side web, the median ventral plate of box-shaped beam body
On opened up several holes.
To achieve the goals above, a kind of production based on double-layer traffic concrete box-beam bridge lateral stiffening ring, step
It is as follows:
A, material prepares；
B, box-shaped beam body, bottom plate, web bottom regular reinforcement are bound；
C, box-shaped beam body, bottom plate are laid with；
D, underplate concrete is poured；
E, demoulding, maintenance；
F, web vertical reinforcing bar, web top rebars, roof steel bar are bound；
G, box-girder side mould, internal model, roof plate template are laid with；
H, web, concrete roof are poured；
I, demoulding, maintenance.
One kind being based on double-layer traffic concrete box-beam bridge lateral stiffening ring, is composed using by several ribbed stiffeners, horizontal
Ribbed stiffener setting is arranged in the web of box beam side in box beam top plate lower part and bottom plate lower part, inclined stiffener, and vertical ribbed stiffener is set
It sets in box beam median ventral plate；It is theoretical according to the stress condition of box girder bridge and framework design, respectively to different in stiffening ring
Ribbed stiffener at position carries out structure design, configures ribbed stiffener steel bar stress, meets the force request of entire stiffening ring, thus full
The technical solution of the lateral stressed requirement of the entire box girder bridge of foot；It overcomes and is becoming tight urban land resource day a few days ago, it is most built
Urban Bridge increasingly congestion, and build the defects of taking up a large area and involve great expense caused by wide bridge.
The present invention compared with prior art caused by the utility model has the advantages that
(I) present invention, which is used in box beam, is arranged stiffening ring, for the conventional box beam of setting diaphragm plate, guarantees
In the case where its integrality performance of the structure, the space efficiency utilization of box beam abdomen is improved, realizes the current requirement of box beam bottom plate,
And it saves resource and has alleviated the overall weight of box-beam structure.
(II) present invention, which is used in box beam, is arranged stiffening ring, efficiently solves box beam overall stiffness deficiency, reinforces
The overall performance of box beam.
(III) present invention, which is used in box beam, is arranged stiffening ring, and stiffening ring can be whole with double-layer traffic concrete box girder
It pours, and the conventional concrete box girder construction that compares in the construction process, reduces the workload for pouring diaphragm plate, reduce
Working time.
(IV) present invention, which is used in box beam, is arranged stiffening ring, can effectively reduce top plate and bottom plate because span is excessive
Caused by top plate and bottom plate disturb spend it is big, to artificial at a kind of unsafe feeling.
(V), the present invention, which is used in box beam, is arranged stiffening ring, because it is arranged in a fixed spacing, improves stress
Can, and ensure that its bearing capacity.
The present invention is suitble to the construction of the small across footpath double-layer traffic bridge in city extensively, is particularly suitable for multilane combined highway and metro and city
City's light rail, multilevel traffic construction.
Invention is further described in detail with reference to the accompanying drawings and examples.
Detailed description of the invention
Fig. 1 is the 3 dimensional drawing of double-layer traffic concrete box-beam bridge lateral stiffening ring and box beam.
Fig. 2 is the section function arrangement schematic diagram of double-layer traffic concrete box-beam bridge.
Fig. 3 is the side view of Fig. 1.
Fig. 4 is the front elevation of Fig. 1.
Fig. 5 is the top view of Fig. 1.
Fig. 6 is C-C sectional view in Fig. 5.
Fig. 7 is F-F sectional view in Fig. 4.
Fig. 8 is G-G sectional view in Fig. 4.
Fig. 9 is G-G section top plate and baseplate reinforcing bar arrangement schematic diagram in Fig. 4.
Figure 10 is double-layer traffic concrete box-beam bridge roof steel bar arrangement schematic diagram.
Figure 11 is double-layer traffic concrete box-beam bridge baseplate reinforcing bar arrangement schematic diagram.
Figure 12 is F-F section top plate and bottom plate and web reinforcement arrangement schematic diagram in Fig. 4.
Figure 13 is H-H sectional view in Fig. 5.
Figure 14 is double-layer traffic concrete box-beam bridge end cross stiffening ring schematic three dimensional views.
Figure 15 is H1-H1 cross-section diagram in Figure 13.
Figure 16 is H2-H2 cross-section diagram in Figure 13.
Figure 17 is H3-H3 cross-section diagram in Figure 13.
Figure 18 is H4-H4 cross-section diagram in Figure 13.
Figure 19 is the steel bar arrangement schematic diagram of horizontal stiffener in Figure 13.
Figure 20 is the steel bar arrangement schematic diagram of H1-H1 section in Figure 13.
Figure 21 is the steel bar arrangement schematic diagram of H2-H2 section in Figure 13.
Figure 22 is the steel bar arrangement schematic diagram of inclined stiffener and inclined stiffener in Figure 13.
Figure 23 is the steel bar arrangement schematic diagram of H3-H3 section in Figure 13.
Figure 24 is the steel bar arrangement schematic diagram of H4-H4 section in Figure 13.
Figure 25 is E-E sectional view in Fig. 5.
Figure 26 is E1-E1 cross-section diagram in Figure 25.
Figure 27 is E2-E2 cross-section diagram in Figure 25.
Figure 28 is E3-E3 cross-section diagram in Figure 25.
Figure 29 is E4-E4 cross-section diagram in Figure 25.
Figure 30 is the steel bar arrangement schematic diagram of horizontal stiffener in Figure 25.
Figure 31 is the steel bar arrangement schematic diagram of E1-E1 section in Figure 25.
Figure 32 is the steel bar arrangement schematic diagram of E2-E2 section in Figure 25.
Figure 33 is the steel bar arrangement schematic diagram of inclined stiffener and inclined stiffener in Figure 25.
Figure 34 is the steel bar arrangement schematic diagram of E3-E3 section in Figure 25.
Figure 35 is the steel bar arrangement schematic diagram of E4-E4 section in Figure 25.
Figure 36 is D-D sectional view in Fig. 5.
Figure 37 is D1-D1 cross-section diagram in Figure 36.
Figure 38 is D2-D2 cross-section diagram in Figure 36.
Figure 39 is D3-D3 cross-section diagram in Figure 36.
Figure 40 is D4-D4 cross-section diagram in Figure 36.
Figure 41 is the steel bar arrangement schematic diagram of horizontal stiffener in Figure 36.
Figure 42 is the steel bar arrangement schematic diagram of D1-D1 section in Figure 36.
Figure 43 is the steel bar arrangement schematic diagram of D2-D2 section in Figure 36.
Figure 44 is the steel bar arrangement schematic diagram of inclined stiffener and inclined stiffener in Figure 36.
Figure 45 is the steel bar arrangement schematic diagram of D3-D3 section in Figure 36.
Figure 46 is the steel bar arrangement schematic diagram of D4-D4 section in Figure 36.
Figure 47 is all kinds of reinforcing bar schematic shapes of double-layer traffic concrete box-beam bridge.
Figure 48 is double-layer traffic concrete box-beam bridge fabrication processing block diagram.
In figure:
1a. Box-girder Bridges end top plate horizontal stiffener one；1b. Box-girder Bridges end bottom plate horizontal stiffener two；1c. case
Type beam bridge end inclined stiffener one；The vertical ribbed stiffener one in 1d. Box-girder Bridges end；Horizontal stiffener at 1/4 span of 2a. top plate
Three；Horizontal stiffener four at 1/4 span of 2b. bottom plate；2c.1/4 inclined stiffener two at span；2d.1/4 vertically putting more energy at span
Rib two；Horizontal stiffener five at 1/2 span of 3a. top plate；Horizontal stiffener six at 1/2 span of 3b. bottom plate；3c.1/2 at span
Inclined stiffener three；Vertical ribbed stiffener three at 3d.1/2 span；4. top plate；5. bottom plate；6. median ventral plate；7. side web；8. the edge of a wing
Plate；9. support；10. hole；11. multifunctional concrete box beam body；12. end cross stiffening ring；It is lateral at 13.1/4 span
Stiffening ring；14. span centre lateral stiffening ring；1. being top plate and flange plate transverse steel；2. being top plate, flange plate and bottom plate longitudinal direction steel
Muscle；3. being bottom plate transverse steel；4. being the vertical reinforcement of median ventral plate；5. being the oblique reinforcing bar of side web；6. being median ventral plate and side
The genesis analysis reinforcing bar of web；For horizontal stiffener three in lateral stiffening ring at 1/4 span, the ribbed stiffener hoop of four (2a, 2b)
Muscle；For horizontal stiffener one in lateral stiffening ring at end cross stiffening ring, 1/4 span and span centre lateral stiffening ring, three, five
The ribbed stiffener of (1a, 2a, 3a) indulges muscle；For horizontal stiffener four in lateral stiffening ring at 1/4 span and span centre lateral stiffening ring,
The ribbed stiffener of six (2b, 3b) indulges muscle；For horizontal stiffener five in span centre lateral stiffening ring, the ribbed stiffener stirrup of six (3a, 3b)；
For the ribbed stiffener stirrup of horizontal stiffener one (1a) in end cross stiffening ring；For sash in end cross stiffening ring
The ribbed stiffener stirrup of rib two (1b)；Muscle is indulged for the ribbed stiffener of horizontal stiffener two (1b) in end cross stiffening ring.End
Inclined stiffener one, two, three (1c, 2c, 3c) in lateral stiffening ring and span centre lateral stiffening ring at lateral stiffening ring, 1/4 span
Oblique reinforcing bar；Vertical ribbed stiffener one in end cross stiffening ring, span centre lateral stiffening ring, three (1d, 3d) and oblique puts more energy into
Rib one, the ribbed stiffener stirrup of three (1c, 3c)；Lateral stiffening ring and span centre lateral stiffening at end cross stiffening ring, 1/4 span
Vertical ribbed stiffener one, the vertical reinforcement of two, three (1d, 2d, 3d) in ring；Vertical ribbed stiffener in lateral stiffening ring at 1/4 span
The ribbed stiffener stirrup of two (2d) and inclined stiffener two (2c).
Specific embodiment
In conjunction with attached drawing, one kind being based on double-layer traffic concrete box-beam bridge lateral stiffening ring comprising end cross stiffening ring
12, lateral stiffening ring 13, span centre lateral stiffening ring 14 and horizontal stiffener three at 1/4 span, four, five, six (2a, 2b, 3a,
3b), horizontal stiffener one, two (1a, 1b), inclined stiffener one, two, three (1c, 2c, 3c), vertical ribbed stiffener one, two, three
(1d, 2d, 3d) with include connect by top plate 4, median ventral plate 6, side web 7, bottom plate 5, flange plate 8, support 9 form it is two flat up and down
Row plane and the box-shaped beam body 11 for being equipped with middle chamber B, side cavity A.In order to realize structure of the invention, effect optimization, further
Measure be: the end position of box-shaped beam body 11, lateral stiffening ring 13 at 1/4 span is arranged in end cross stiffening ring 12
1/4 span location of box-shaped beam body 11 is set, and the span centre position of box-shaped beam body 11 is arranged in span centre lateral stiffening ring 14.End
Lateral stiffening ring 12 includes horizontal stiffener one (1a), horizontal stiffener two (1b), inclined stiffener one (1c) and vertically puts more energy into
Rib one (1d).Lateral stiffening ring 13 includes horizontal stiffener three (2a), horizontal stiffener four (2b), oblique puts more energy at 1/4 span
Rib two (2c) and vertical ribbed stiffener two (2d).Span centre lateral stiffening ring 14 includes horizontal stiffener five (3a), horizontal stiffener six
(3b), inclined stiffener three (3c) and vertical ribbed stiffener three (3d).Lateral stiffening ring at end cross stiffening ring 12,1/4 span
13 and span centre lateral stiffening ring 14 inside be configured with stiffener.Lateral stiffening ring 13 at end cross stiffening ring 12,1/4 span
And span centre lateral stiffening ring 14 pours forming by concrete material.Horizontal stiffener three, four, five, six (2a, 2b, 3a, 3b's)
Cross sectional shape is isosceles trapezoid, and horizontal stiffener one, two (1a, 1b) are that chamfer is trapezoidal, inclined stiffener one, two, three (1c,
2c, 3c) and vertically ribbed stiffener one, two, three (1d, 2d, 3d) they are rectangle.Middle chamber B is by 4 middle part of top plate through median ventral plate 6 and bottom plate 5
Connection composition, side cavity A are connect with top plate 4 and are formed through side web 7, median ventral plate 6 by bottom plate 5；The side web 7 of box-shaped beam body 11,
Several holes 10 have been opened up on median ventral plate 6.
In conjunction with attached drawing, a kind of production based on double-layer traffic concrete box-beam bridge lateral stiffening ring, its step are as follows:
A, material prepares；
B, box-shaped beam body, bottom plate, web bottom regular reinforcement are bound；
C, box-shaped beam body, bottom plate are laid with；
D, underplate concrete is poured；
E, demoulding, maintenance；
F, web vertical reinforcing bar, web top rebars, roof steel bar are bound；
G, box-girder side mould, internal model, roof plate template are laid with；
H, web, concrete roof are poured；
I, demoulding, maintenance.
As shown in attached drawing, structure and principle of the invention: one kind being based on double-layer traffic concrete box-beam bridge lateral stiffening ring,
The present embodiment has carried out reduced scale to the invention application bridge, pours and builds up test scaled model, has carried out one to test scaled model
Series model test research and analysis, this embodiment are illustrated according only to test scaled model, do not represent the invention of this patent
It is confined to the feature of test scaled model, the embodiment of the embodiment is explained below.
One kind being based on double-layer traffic concrete box-beam bridge lateral stiffening ring, and as Figure 1-Figure 8, it is contained in the double-deck friendship
Among logical concrete box girder 11, several holes 10 have been opened up on the side web 7 of box-shaped beam body 11, median ventral plate 6；Box-shaped beam body 11 is wrapped
Include the middle chamber that upper and lower two parallel plane and setting are made of top plate 4, median ventral plate 6, side web 7, bottom plate 5, flange plate 8, support 9
B and side cavity A；Middle chamber B is connect with bottom plate 5 through median ventral plate 6 by 4 middle part of top plate and is formed, and the side cavity A is by bottom plate 5 through side
Web 7, median ventral plate 6 connect composition with top plate 4.It is F-F sectional view, i.e. the one of box-shaped beam body 11 in Fig. 4 referring to Fig. 7, Fig. 8, Fig. 7
As horizontal section, Fig. 8 be Fig. 4 in G-G sectional view, the i.e. horizontal section for opening up hole 10 of box-shaped beam body 11.
It is the arrangement of 5 reinforcing bar of top plate 4, flange plate 8 and bottom plate of the concrete box girder bridge 11 referring to Fig. 9-Figure 12
1. form, the top plate 4 and flange plate 8 of Box-girder Bridges 11 are disposed with transverse steel, 8 cloth of top plate 4 and flange plate of Box-girder Bridges 11
It is equipped with longitudinal reinforcement 2., 3. the bottom plate 5 of Box-girder Bridges 11 is disposed with transverse steel, the bottom plate 5 of Box-girder Bridges 11 is disposed with longitudinal direction
2., 4. the middle pectoral plate 6 of Box-girder Bridges 11 is disposed with vertical reinforcement to reinforcing bar, 5. side skew web plate 7 is disposed with oblique reinforcing bar, intermediate abdomen
6. plate 6 and side skew web plate 7 are disposed with genesis analysis reinforcing bar.
Referring to Fig. 5, one kind being based on double-layer traffic concrete box-beam bridge lateral stiffening ring, it is characterised in that it belongs to box-girder
A kind of transverse stiffener and mode of body 11 are divided into end cross stiffening ring 12, lateral stiffening ring 13 and span centre at 1/4 span
The end position of box-shaped beam body 11, transverse direction at 1/4 span is arranged in lateral stiffening ring 14, the end cross stiffening ring 12
1/4 span location of box-shaped beam body 11 is arranged in stiffening ring 13, and box-shaped beam body 11 is arranged in the span centre lateral stiffening ring 14
Span centre position.
Referring to fig. 47, it is the schematic shapes of reinforcing bar type used in Box-girder Bridges 11 described in embodiment, the 1. shape of reinforcing bar
Shape is linear type, and both ends have crotch, for connection flange plate 8 and 4 transverse steel of top plate；2. the shape of reinforcing bar be linear type, two
End has crotch, is the longitudinal reinforcement of flange plate 8, top plate 4 and bottom plate 5；3. the shape of reinforcing bar is linear type, both ends are with curved
Hook is the transverse steel of bottom plate 5；4. the shape of reinforcing bar is that two straight line steel bars are arranged symmetrically, both ends steel bar end is curved to centre
Song is vertically put at hook to the vertical reinforcement in middle pectoral plate 6；5. the shape of muscle is that two straight line steel bars are arranged symmetrically, both ends
Steel bar end to bent intermediate at hook, it is oblique to put to the oblique reinforcing bar in side skew web plate 7；6. the shape of reinforcing bar is linear type, both ends
With crotch, put to be longitudinal to the genesis analysis reinforcing bar in middle pectoral plate 6 and side skew web plate 7；The shape of reinforcing bar is bevel edge slot
Type, both ends have crotch, to put to level at 1/4 span of three 2a of horizontal stiffener and bottom plate 5 at 1/4 span of top plate 4
The ribbed stiffener stirrup of four 2b of ribbed stiffener；The shape of reinforcing bar is linear type, and both ends have crotch, is put to be longitudinal in Box-girder Bridges
11 end top plate, 4 horizontal stiffener, one 1a, top plate 4 1/4 span at the span centre of three 2a of horizontal stiffener and top plate 4 level add
The ribbed stiffener of five 3a of strength rib indulges muscle；The shape of reinforcing bar is linear type, and both ends have crotch, is put to be longitudinal to the 1/4 of top plate 4
The ribbed stiffener of six 3b of horizontal stiffener indulges muscle at the span centre of four 2b of horizontal stiffener and top plate 4 at span；The shape of reinforcing bar is
Bevel edge groove profile, both ends have crotch, put to be longitudinal to the span centre of five 3a of horizontal stiffener and bottom plate 5 at the span centre in top plate 4
The ribbed stiffener stirrup of six 3b of horizontal stiffener；The shape of reinforcing bar is the groove profile beveled edge on one side while direct side, to put in case
Ribbed stiffener stirrup at 11 top plate of type beam bridge, 4 end horizontal ribbed stiffener, one 1a；The shape of reinforcing bar is to oblique while direct side
The groove profile on side, to put to the ribbed stiffener stirrup at two 1b of horizontal stiffener in 11 bottom plate of Box-girder Bridges, 5 end；The shape of reinforcing bar
Shape is linear type, and both ends have crotch, vertical to the ribbed stiffener at 11 bottom plate of Box-girder Bridges, 5 end horizontal ribbed stiffener, two 1b to put
Muscle；The shape of reinforcing bar is two linear types, and reinforcing bar is arranged symmetrically, and both ends steel bar end, at hook, is vertically put to perpendicular to bent intermediate
To ribbed stiffener one, two, three 1d, the vertical reinforcement of 2d, 3d；The shape of reinforcing bar is square type, is end cross stiffening ring 12, span centre
Vertical ribbed stiffener one, three 1d, 3d and inclined stiffener one, the ribbed stiffener stirrup of three 1c, 3c in lateral stiffening ring 14；Reinforcing bar
Shape is square type, the ribbed stiffener hoop for being two 2c of vertical two 2d of ribbed stiffener and inclined stiffener in lateral stiffening ring 13 at 1/4 span
Muscle.
Embodiment one: one kind being based on double-layer traffic concrete box-beam bridge lateral stiffening ring, and as shown in Figure 13-Figure 24, it is wrapped
Among double-layer traffic concrete box girder 11, the end position of box-shaped beam body 11 is set, is end cross stiffening ring 12, institute
End cross stiffening ring 12 is stated to include one 1a of horizontal stiffener, two 1b of horizontal stiffener, one 1c of inclined stiffener and vertically put more energy into
One 1d of rib.
It is H-H sectional view in Fig. 5 referring to Figure 13, Figure 14, Figure 13, the as section signal of the end position of box-shaped beam body 11
Figure, Figure 14 are the end stereoscopic schematic diagram of box-shaped beam body 11；In the end position of box-shaped beam body 11, end cross stiffening ring is set
12；It is H1-H1 sectional view in Figure 13, the as horizontal stiffener of end cross stiffening ring 12 referring to Figure 15-Figure 18, Figure 15
The section of one 1a, the cross sectional shape of one 1a of horizontal stiffener are that chamfer is trapezoidal；Figure 16 is H2-H2 sectional view in Figure 13, i.e.,
For the section of two 1b of horizontal stiffener of end cross stiffening ring 12, the cross sectional shape of two 1b of horizontal stiffener is chamfer ladder
Shape；Figure 17-Figure 18 is respectively H3-H3, H4-H4 sectional view in Figure 13, and Figure 17 is that the oblique of end cross stiffening ring 12 adds
The schematic cross-section of one 1c of strength rib, Figure 18 are the schematic cross-section of one 1d of vertical ribbed stiffener of end cross stiffening ring 12, section
Shape is rectangle.
It is the arrangement form of reinforcing bar in the end cross stiffening ring 12 of the Box-girder Bridges 11 as shown in Figure 19-Figure 24；
It is the section reinforcing bar cloth of one 1a of horizontal stiffener, two 1b of horizontal stiffener in end cross stiffening ring 12 referring to Figure 19-Figure 21
Set form, in the end cross stiffening ring 12 one 1a of horizontal stiffener be disposed with transverse steel 1., longitudinal reinforcement 2., it is horizontal plus
The ribbed stiffener stirrup of one 1a of strength rib, the ribbed stiffener of one 1a of horizontal stiffener indulge muscle；Two 1b of horizontal stiffener is disposed with
Transverse steel 3., longitudinal reinforcement 2., the ribbed stiffener of the ribbed stiffener stirrup of two 1b of horizontal stiffener, two 1b of horizontal stiffener indulge muscle；
2-Figure 24 referring to fig. 2 is section of one 1c of inclined stiffener in end cross stiffening ring 12, one 1d of vertical ribbed stiffener
Face steel bar arrangement form, one 1c of inclined stiffener is disposed with oblique reinforcing bar in the end cross stiffening ring 12, ribbed stiffener hoop
Muscle, vertical one 1d of ribbed stiffener is disposed with vertical reinforcement in the end cross stiffening ring 12, ribbed stiffener stirrup。
Embodiment two: one kind being based on double-layer traffic concrete box-beam bridge lateral stiffening ring, and as shown in Figure 25-Figure 35, it is wrapped
Among double-layer traffic concrete box girder 11,1/4 span location of box-shaped beam body 11 is set, is laterally to add at 1/4 span
Strength ring 13, lateral stiffening ring 13 includes three 2a of horizontal stiffener, four 2b of horizontal stiffener, inclined stiffener at 1/4 span
Two 2d of two 2c and vertical ribbed stiffener.
5-Figure 29 referring to fig. 2, Figure 25 are E-E sectional view, the as section of 1/4 span location of box-shaped beam body 11 in Fig. 5
Lateral stiffening ring 13 at 1/4 span is arranged in 1/4 span location of box-shaped beam body 11 in schematic diagram；6-Figure 29 referring to fig. 2, Figure 26
For the E1-E1 sectional view in Figure 25, the section of three 2a of horizontal stiffener of lateral stiffening ring 13 at as 1/4 span, level plus
The cross sectional shape of three 2a of strength rib is isosceles trapezoid；Figure 27 is the E2-E2 sectional view in Figure 25, lateral stiffening at as 1/4 span
The section of four 2b of horizontal stiffener of ring 13, the cross sectional shape of four 2b of horizontal stiffener are isosceles trapezoid；Figure 28-Figure 29 difference
For E3-E3, E3-E3 sectional view in Figure 25, Figure 28 is the section of two 2c of inclined stiffener of lateral stiffening ring 13 at 1/4 span
Schematic diagram, Figure 29 are the schematic cross-section of two 2d of vertical ribbed stiffener of lateral stiffening ring 13 at 1/4 span, and cross sectional shape is square
Shape.
It is the arrangement of reinforcing bar in lateral stiffening ring 13 at 1/4 span of the Box-girder Bridges 11 as shown in Figure 30-Figure 35
Form；It is three 2a of horizontal stiffener, four 2b of horizontal stiffener in lateral stiffening ring 13 at 1/4 span referring to Figure 30-Figure 32
Section reinforcing bar arrangement form, at 1/4 span in lateral stiffening ring 13 three 2a of horizontal stiffener be disposed with transverse steel 1., it is vertical
To reinforcing bar 2., the ribbed stiffener of the ribbed stiffener stirrup of three 2a of horizontal stiffener, three 2a of horizontal stiffener indulge muscle；The level adds
Four 2b of strength rib be disposed with transverse steel 3., longitudinal reinforcement 2., the ribbed stiffener stirrup of four 2b of horizontal stiffener, horizontal stiffener four
The ribbed stiffener of 2b indulges muscle；It is two 2c of inclined stiffener in lateral stiffening ring 13 at 1/4 span, vertical referring to Figure 33-Figure 35
The section reinforcing bar arrangement form of two 2d of ribbed stiffener, two 2c of inclined stiffener is disposed in lateral stiffening ring 13 at 1/4 span
Oblique reinforcing bar, ribbed stiffener stirrup, vertical two 2d of ribbed stiffener is disposed with vertical steel in lateral stiffening ring 13 at 1/4 span
Muscle, ribbed stiffener stirrup。
Embodiment three: one kind being based on double-layer traffic concrete box-beam bridge lateral stiffening ring, and as shown in Figure 36-Figure 46, it is wrapped
Among double-layer traffic concrete box girder 11, the span centre position of box-shaped beam body 11 is set, is span centre lateral stiffening ring 14, institute
Span centre lateral stiffening ring 14 is stated to include five 3a of horizontal stiffener, six 3b of horizontal stiffener, three 3c of inclined stiffener and vertically put more energy into
Three 3d of rib.
Referring to Figure 36-Figure 40, Figure 36 is D-D sectional view in Fig. 5, and the section of the as span centre position of box-shaped beam body 11 shows
It is intended to, span centre lateral stiffening ring 14 is set in the span centre position of box-shaped beam body 11；It is in Figure 36 referring to Figure 37-Figure 40, Figure 37
D1-D1 sectional view, the as section of five 3a of horizontal stiffener of span centre lateral stiffening ring 14, the section shape of five 3a of horizontal stiffener
Shape is isosceles trapezoid；Figure 37 is the D2-D2 sectional view in Figure 36, as six 3b's of horizontal stiffener of span centre lateral stiffening ring 14
Section, the cross sectional shape of six 3b of horizontal stiffener are isosceles trapezoid；Figure 39-Figure 40 is respectively that D3-D3, D3-D3 in Figure 36 are cut
Face figure, Figure 39 are the schematic cross-section of three 3c of inclined stiffener of span centre lateral stiffening ring 14, and Figure 40 is span centre lateral stiffening ring
The schematic cross-section of 14 three 3d of vertical ribbed stiffener, cross sectional shape is rectangle.
It is the arrangement form of reinforcing bar in the span centre lateral stiffening ring 14 of the Box-girder Bridges 11 as shown in Figure 41-Figure 46；
1-Figure 43 referring to fig. 4 is the section reinforcing bar cloth of five 3a of horizontal stiffener, six 3b of horizontal stiffener in span centre lateral stiffening ring 14
Set form, in the span centre lateral stiffening ring 14 five 3a of horizontal stiffener be disposed with transverse steel 1., longitudinal reinforcement 2., it is horizontal plus
The ribbed stiffener stirrup of five 3a of strength rib, the ribbed stiffener of five 3a of horizontal stiffener indulge muscle；Six 3b of horizontal stiffener is disposed with
Transverse steel 3., longitudinal reinforcement 2., the ribbed stiffener of the ribbed stiffener stirrup of six 3b of horizontal stiffener, six 3b of horizontal stiffener indulge muscle
⑬；4-Figure 46 referring to fig. 4 is the section reinforcing bar of three 3c of inclined stiffener, three 3d of vertical ribbed stiffener in span centre lateral stiffening ring 14
Arrangement form, three 3c of inclined stiffener is disposed with oblique reinforcing bar in the span centre lateral stiffening ring 14, ribbed stiffener stirrup, institute
It states three 3d of vertical ribbed stiffener in span centre lateral stiffening ring 14 and is disposed with vertical reinforcement, ribbed stiffener stirrup。
The implementation process general thought of stiffening ring is to be first according to the related size and requirement of existing box beam, to each
Ribbed stiffener carries out Reinforcement Design, the associated components connection of the reinforcing bar for then matching each ribbed stiffener and box beam, such as stiffening ring
Upper following horizontal stiffener reinforcing bar and the lateral plate muscle of roof and floor connect, in vertically the put more energy into rib reinforcement and web of the right and left
Plate muscle is connected, each ribbed stiffener junction joint reinforcing bar inlay and the anchoring with girder；So that entire stiffening ring and box beam
Main body form an entirety, end stiffening ring is the both ends of box beam main body tightly around and each stiffening ring in span centre portion
The segmentation of the waist of box beam main body is surround, the globality of box beam is increased, improves the holistic resistant behavior of box beam, and instead of
Diaphragm plate reduces the application of concrete, has saved resource, improves the space utilization of chamber, realizes that the traffic of box beam bottom plate is logical
Row.
Claims (5)
1. one kind is based on double-layer traffic concrete box-beam bridge lateral stiffening ring, it is characterised in that including being arranged in box-shaped beam body (11)
Lateral stiffening is arranged at 1/4 span of (11) 1/4 span location of box-shaped beam body in the end cross stiffening ring (12) of end position
Ring (13), setting box-shaped beam body (11) span centre position span centre lateral stiffening ring (14) and horizontal stiffener three, four, five,
Three (1c, 2c, 3c), six (2a, 2b, 3a, 3b), horizontal stiffener one, two (1a, 1b), inclined stiffener one, two vertically put more energy into
Rib one, two, three (1d, 2d, 3d) with include by top plate (4), median ventral plate (6), side web (7), bottom plate (5), flange plate (8), hold
It asks (9) connection to form two parallel planes up and down and is equipped with the box-shaped beam body (11) of middle chamber (B), side cavity (A)；The end
Stiffener is configured simultaneously inside lateral stiffening ring (13) and span centre lateral stiffening ring (14) at lateral stiffening ring (12), 1/4 span
Forming is poured by concrete material.
2. according to claim 1 a kind of based on double-layer traffic concrete box-beam bridge lateral stiffening ring, it is characterised in that institute
State end cross stiffening ring (12) include horizontal stiffener one (1a), horizontal stiffener two (1b), inclined stiffener one (1c) and
Vertical ribbed stiffener one (1d), lateral stiffening ring (13) includes horizontal stiffener three (2a), horizontal stiffener at 1/4 span
Four (2b), inclined stiffener two (2c) and vertical ribbed stiffener two (2d), the span centre lateral stiffening ring (14) includes sash
Rib five (3a), horizontal stiffener six (3b), inclined stiffener three (3c) and vertical ribbed stiffener three (3d).
3. according to claim 1 a kind of based on double-layer traffic concrete box-beam bridge lateral stiffening ring, it is characterised in that institute
State horizontal stiffener three, the cross sectional shape of four, five, six (2a, 2b, 3a, 3b) is isosceles trapezoid, the horizontal stiffener one, two
(1a, 1b) is that chamfer is trapezoidal, the inclined stiffener one, two, three (1c, 2c, 3c) and vertical ribbed stiffener one, two, three (1d,
2d, 3d) it is rectangle.
4. according to claim 1 a kind of based on double-layer traffic concrete box-beam bridge lateral stiffening ring, it is characterised in that institute
It states middle chamber (B) to be formed by connecting through median ventral plate (6) with bottom plate (5) in the middle part of top plate (4), the side cavity (A) is passed through by bottom plate (5)
Side web (7), median ventral plate (6) connect composition with top plate (4)；On the side web (7) of the box-shaped beam body (11), median ventral plate (6)
Several holes (10) are opened up.
5. according to claim 1-4 a kind of based on double-layer traffic concrete box-beam bridge lateral stiffening ring, system
The step of making method is as follows:
A, material prepares；
B, box-shaped beam body, bottom plate, web bottom regular reinforcement are bound；
C, box-shaped beam body, bottom plate are laid with；
D, underplate concrete is poured；
E, demoulding, maintenance；
F, web vertical reinforcing bar, web top rebars, roof steel bar are bound；
G, box-girder side mould, internal model, roof plate template are laid with；
H, web, concrete roof are poured；
I, demoulding, maintenance.
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| CN106906734A (en) * | 2017-03-16 | 2017-06-30 | 阮保国 | Multi-functional overpass |
| CN112523061B (en) * | 2020-11-24 | 2022-06-14 | 广西交通设计集团有限公司 | UHPC stiffened prestressed concrete box girder bridge structure and construction process thereof |
| CN112554031A (en) * | 2020-12-15 | 2021-03-26 | 林同棪国际工程咨询（中国）有限公司 | Deck beam-arch combined rigid frame bridge for double-deck traffic |
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