CN206337497U - A kind of unidirectional prestressing force ultra-high performance concrete Thin-walled Box Girder standard section - Google Patents
A kind of unidirectional prestressing force ultra-high performance concrete Thin-walled Box Girder standard section Download PDFInfo
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- CN206337497U CN206337497U CN201621378357.4U CN201621378357U CN206337497U CN 206337497 U CN206337497 U CN 206337497U CN 201621378357 U CN201621378357 U CN 201621378357U CN 206337497 U CN206337497 U CN 206337497U
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- standard section
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Abstract
The utility model discloses a kind of unidirectional prestressing force ultra-high performance concrete Thin-walled Box Girder standard section, including floorings, web, base plate, diaphragm plate, prestressing with bond beam, external pre-stress bundle, floorings and base plate are oppositely arranged, connect the standard section of web formation insertion respectively by both sides, diaphragm plate is connected and perpendicular to floorings with standard section inwall, also include longitudinal rib, I class cross ribs, II classes cross rib and steering block, longitudinal rib be arranged in the lower wall of floorings and and diaphragm plate, I classes cross rib and II class cross ribs are vertical, the lower wall connection of I classes cross rib and II classes cross rib and floorings, I class cross ribs are arranged on the open end of standard section both sides, II class cross ribs are arranged between diaphragm plate.The utility model can realize the rapid construction of section, and standard section realizes the optimization of structure, reduce overall weight, enhance integral rigidity and intensity and especially enhance longitudinally rigid, be easy to implement the further lifting of the span ability of beam bridge.
Description
Technical field
The utility model is related to bridge structure building field, and more particularly to a kind of unidirectional prestressing force ultra-high performance concrete is thin
The standard section of wall box beam.
Background technology
The diseases such as current large-span prestressed concrete beam formula bridge generally existing beam body cracking, the excessive downwarp of main span, and beam
The excessive economic span of body deadweight is difficult to break through 300m.Basic reason is that normal concrete tensile strength is low, Creep Coefficient is larger,
And ultra-high performance concrete has the advantages that high elastic modulus, high resistance to compression, tensile strength and good Creep Characteristics, it can reduce
Physical dimension, mitigates dead load, improves the ability that structure resistance load validity and increase are crossed over.Therefore, based on superelevation
Can the unidirectional prestressing force ultra-high performance concrete continuous box-beam structures of concrete performance research and development be expected to solve above-mentioned problem, and by beam
The span ability of formula bridge is promoted to 500m grades.
Unidirectional prestressing force ultra-high performance concrete thin-walled box girder bridge uses beam body prefabrication, live precast segment assembly
Construction method.I.e. by beam body it is longitudinally divided be several sections, after beam factory is prefabricated, transport to scene is assembled, and is led to
Cross application prestressing force and make overall.For the assembled box beam of section, all box girder segments are prefabricated in beam factory, box girder segment
Rapid construction of the standardization to precast assembly seem particularly significant.
Therefore, it is real in order that unidirectional prestressing force ultra-high performance concrete Thin-walled box beam structure can be practical in practice
A kind of assembled rapid, the unidirectional prestressing force ultra-high performance concrete Thin-walled Box Girder standard section of exploitation of existing precast segment.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of unidirectional prestressing force ultra-high performance concrete thin-walled box
Beam standard section, is applied with the rapid of section assembling for realizing the unidirectional prestressing force ultra-high performance concrete box girder bridge of Ultra-Long Spans
Work.
In order to solve the above technical problems, the utility model proposes technical scheme it is mixed for a kind of unidirectional prestressing force very-high performance
Solidifying soil Thin-walled Box Girder standard section, including it is floorings, web, base plate, diaphragm plate, prestressing with bond beam, external pre-stress bundle, vertical
Rib, I classes cross rib and II class cross ribs, the floorings and base plate are oppositely arranged, and are connected the web formation respectively by both sides and are passed through
Logical standard section, the diaphragm plate is connected with standard section inwall and perpendicular to the floorings, and the longitudinal rib is set
In in the lower wall of the floorings and vertical with the diaphragm plate, I classes cross rib and II class cross ribs, the I classes cross rib and II classes
Cross rib is connected with the lower wall of the floorings, and the I classes cross rib is arranged on the open end of standard section both sides, institute
State II class cross ribs to be arranged between the diaphragm plate, I classes cross rib bonding after two adjacent standard knot sections are assembled is formed together
The II classes cross rib.This kind of novel standard section, not only realizes lightweight on the whole, has saved material, has improved simultaneously
Overall strength and stiffness, are easy to implement the lifting of bridge construction efficiency and the realization of large span.
Further, in the standard section formed between floorings, longitudinal rib, diaphragm plate, I classes cross rib and II class cross ribs
The short floor deck system of orthotropic, its is longitudinally rigid much larger than horizontal rigidity, relative to orthogonal same sex bridge floor beaer
System, further mitigate its dead load, be beneficial to by the span ability of beam bridge be promoted to 500m grades and more than.
Further, tooth block and externally cable anchoring tooth block, the internal beam anchoring tooth block build-in also are anchored including internal beam
In on the I classes cross rib and through diaphragm plate, and it is affixed with the lower wall of the floorings；The externally cable anchors tooth block build-in
Between the diaphragm plate and affixed with the web madial wall, the external pre-stress bundle anchors tooth block anchor by externally cable
Gu, the prestressing with bond beam anchors tooth block by the internal beam and anchored, relative to traditional anchoring tooth directly on inwall
Block is set, and set-up mode of the present utility model adds the support strength of anchoring tooth block.
Further, the bridge floor plate thickness is 0.07m~0.20m, and the longitudinal rib is highly 0.10m~0.30m, described
Floorings combine to form short rib structure with longitudinal rib, and the longitudinal rib section is inverted trapezoidal, and its upper limb width is 0.16m~0.30m,
Lower edge width is 0.14m~0.28m, and adjacent longitudinal rib center spacing is 0.50~1.20m, and this kind is arranged on guarantee materials most
On the premise of few, overall rigidity and intensity is improved.
Further, the diaphragm plate in the standard section is twice, and the diaphragm plate includes one upper string board, two to four
Road side plate lower boom plate with together with.The tabula plate thickness is 0.10m~0.20m, and the upper string board is highly two web center lines
The 1/7~1/10 of spacing, the lower boom plate is highly 0.50m~1.50m, and the side plate width is 0.50m~2.00m, if abdomen
When plate spacing is smaller, using twice side plate, if web spacing is larger, using three to four road side plates.This kind of insertion of diaphragm plate
Setting, further increase the strength and stiffness of standard section.
Further, the standard section includes twice I class cross ribs II classes cross rib with together with, and the I classes cross rib thickness is
0.08m~0.15m, the II classes cross rib thickness is 0.12m~0.30m, and the I classes cross rib and II classes cross rib are highly two webs
Centreline space away from 1/7~1/30, this kind is set to the further optimization of the utility model standard section, and the I classes cross rib exists
A notch, the tensioning and the sealing off and covering anchorage that are provided with beneficial to prestressing with bond beam of notch are set at internal beam anchoring tooth block position.
Further, web and base plate are stated and uses thin-walled plate, web thickness is 0.12m~0.50m, and base plate thickness is
0.12m~2.00m, on the premise of thin-walled plate is arranged on guarantee bulk strength and rigidity, realizes the lightweight of standard section.
Further, also including steering block, its build-in is on the side plate of diaphragm plate, and one of face and web madial wall
Affixed, external pre-stress bundle passes through the steering block, and the steering block that this kind is set under the active force of prestressing tendon, is not only obtained
Power to web is supported, while effective support of diaphragm plate can also be obtained further, it is to avoid the problem of steering block easily ftractures.
Further, also including being separately positioned on shear connector on two open ends of the standard section, the shear connector
It is to include the joinery and its construction of tenon and tongue-and-groove, the open end of standard section one is provided with multiple tenons, another open end
Multiple tongue-and-grooves are provided with, are close on the inside of the web, the bond distance of shear connector is 0.50m~2.00m, a width of 0.10m of key~
0.30m, key depth is 0.2m~1.00m.Joinery and its construction increases the shearing strength of shear connector, is further advantageously implemented beam bridge
Span ability lifting.
Further, the standard section is the standard section of uiform section deck-molding or variable cross-section deck-molding, is mixed by very-high performance
Solidifying soil, which is poured, to be formed, and the ultra-high performance concrete is RPC of the compression strength not less than 100MPa or superelevation
Energy fibre reinforced concrete is closely knit with rib reinforced composite material, and this kind of ultra-high performance concrete is more easily implemented the light weight of standard section
Change, high intensity, high rigidity.
Compared with prior art, the utility model has the advantage of：A kind of unidirectional prestressing force superelevation of the present utility model
Energy concrete thin-walled box girder standard section, can draw the beam section of foregoing unidirectional prestressing force ultra-high performance concrete Thin-walled Box Girder
Divide, beam precast is standardized, and improves beam section production efficiency, reduces template and operating expenses, to realize that foregoing unidirectional prestressing force surpasses
The rapid construction of high performance concrete Thin-walled Box Girder, meanwhile, standard section realizes the optimization of structure, reduces overall weight,
Enhance integral rigidity and intensity and especially enhance longitudinally rigid, the span ability for being easy to implement beam bridge is further carried
Rise.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are these
Some embodiments of utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to these accompanying drawings.
Fig. 1 is the vertical view of unidirectional prestressing force ultra-high performance concrete Thin-walled Box Girder standard section in the utility model embodiment
Schematic three dimensional views；
Fig. 2 is that unidirectional prestressing force ultra-high performance concrete Thin-walled Box Girder standard section is looked up in the utility model embodiment
Schematic three dimensional views；
Fig. 3 is the longitudinal direction of unidirectional prestressing force ultra-high performance concrete Thin-walled Box Girder standard section in the utility model embodiment
Half-sectional schematic three dimensional views；
Fig. 4 is that the beam of unidirectional prestressing force ultra-high performance concrete Thin-walled Box Girder standard section in the utility model embodiment is short
Floor organigram；
Fig. 5 is the Tenon of unidirectional prestressing force ultra-high performance concrete Thin-walled Box Girder standard section in the utility model embodiment
Organigram；
Fig. 6 is Fig. 5 A-A schematic cross-sectional views；
Fig. 7 is Fig. 5 B-B schematic cross-sectional views.
Marginal data：
1st, floorings；2nd, longitudinal rib；3rd, web；4th, base plate；5th, diaphragm plate；6th, upper string board；7th, side plate；8th, lower boom plate；9th, I classes
Cross rib；10th, II classes cross rib；11st, prestressing with bond beam；12nd, external pre-stress bundle；13rd, steering block；14th, internal beam anchoring tooth block；
15th, externally cable anchoring tooth block；16th, shear connector；161st, tenon；162nd, tongue-and-groove；17th, notch.
Embodiment
For the ease of understanding the utility model, below in conjunction with Figure of description and preferred embodiment to the utility model
Work more comprehensively, is meticulously described, but protection domain of the present utility model is not limited to embodiment in detail below.
It should be strongly noted that when a certain element, to be described as " be fixed on, be fixed in, be connected to or be communicated in " another
When on element, it can be directly fixed, affixed, connection or connect on another element or by connecting in the middle of other
Fitting is indirectly fixed, affixed, connection or connection are on another element.
Unless otherwise defined, the implication that all technical terms used hereinafter are generally understood that with those skilled in the art
It is identical.Technical term used herein is intended merely to describe the purpose of specific embodiment, is not intended to and limits this practicality
New protection domain.
Unless otherwise specified, various raw material, reagent, instrument and equipment used in the utility model etc. can lead to
Market is crossed to be commercially available or can prepare by existing method.
Embodiment：
The utility model discloses a kind of unidirectional prestressing force ultra-high performance concrete Thin-walled Box Girder standard section, the standard knot
Duan Caiyong prefabrications, the construction method of on-site consolidation, overall poured by ultra-high performance concrete forms, and its entire length is about
8m, box beam top board it is wide about 12m, be highly 10m~12m, in the present embodiment, the ultra-high performance concrete be compression strength not
RPC, very-high performance fibre reinforced concrete or closely knit with rib reinforced composite material, the standard knot less than 100MPa
The structure of section is as shown in Fig. 1-Fig. 7, and whole standard section is the body structure of insertion, including floorings 1, web 3, the and of base plate 4
Diaphragm plate 5, wherein, floorings 1 and base plate 4 are oppositely arranged, and base plate 4 is the twisted plate with certain radian, is distinguished by both sides
The standard section of the formation insertion of web 3 of connection, diaphragm plate 5 be connected with standard section inwall and perpendicular to the floorings 1 and
Web 3, in the present embodiment, as one kind preferably, the thickness of floorings 1 is 0.08m, and the thickness of web 3 is 0.35m, the thickness of base plate 4
For 0.90m.Wherein, be vertically arranged with longitudinal rib 2 along the standard section in the lower wall of floorings 1, the longitudinal rib 2 simultaneously with diaphragm plate 5
Build-in, in the present embodiment, as one kind preferably, the section of longitudinal rib 2 is inverted trapezoidal structure, and its upper limb width is 0.20m, lower edge
Width is 0.18m, and the adjacent center spacing of longitudinal rib 2 is 0.70m, and longitudinal rib 2 and floorings 1 constitute short rib structure, the short floor
The height of structure is 0.25m.Meanwhile, in the present embodiment, diaphragm plate 5 is twice, to be uniformly arranged in the standard section
Spacing between thin-walled plate, twice diaphragm plate 5 is 4m, wherein, dividing plate 5 includes one upper string board 6, twice side plate 7 with together with
Lower boom plate 8, the thickness of diaphragm plate 5 is 0.12m, and the height of upper string board 6 is 1.50m, and the lower height of boom plate 8 is 1.00m, and the height of side plate 7 is
1m, by the setting of the diaphragm plate 5, the effect of reinforcing is served to whole standard section.
In the lower wall of floorings 1 of the standard section, I classes cross rib 9 and II classes cross rib 10 are additionally provided with, wherein, I class cross ribs
9 are arranged on the open end of standard section both sides, and II classes cross rib 10 is arranged in the middle of twice diaphragm plate 5, in this implementation
In example, the thickness of I classes cross rib 9 is 0.10m, and the thickness of II classes cross rib 10 is 0.20m, and the height of II classes cross rib 10 is 1.50m.So as to be somebody's turn to do
The short floor bridge floors of orthotropic UHPC are formed between longitudinal rib 2, diaphragm plate 5, I classes cross rib 9 and II classes cross rib 10 in standard section
System, can realize the standard section it is light-weighted simultaneously, improve its rigidity and be easy to arrangement prestressing with bond beam 11.
Further, also including internal beam anchoring tooth block 14 and externally cable anchoring tooth block 15, internal beam anchoring tooth block 14 is embedding
It is fixed between I classes cross rib 9 and is consolidated through one of diaphragm plate 5 and with the lower wall of floorings 1；The build-in of externally cable anchoring tooth block 15
Consolidated between diaphragm plate 5 and with the inwall of web 3, external pre-stress bundle 12 anchors tooth block 15 by externally cable and anchored, pre- in vivo
Stress beam 11 anchors tooth block 14 by internal beam and anchored, wherein, in the present embodiment, the external pre-stress bundle 12 in the section is
8 beams, prestressing with bond beam 11 is 6 beams.Further, stress beam steering block 13, the steering are additionally provided with the standard section
The build-in of block 13 is consolidated in diaphragm plate side plate 7, and the wallboard in one of face and the standard section, and external pre-stress bundle 12 is by embedding
The steering block 13 on diaphragm plate 5 is fixed in, this kind, which is set, can resist because external pre-stress bundle 12 turns to the radial load produced, together
When, I classes cross rib 9 sets a notch 17 at the position of beam anchoring tooth block 14 in vivo, and notch 17 is provided with beneficial to prestressing with bond
The tensioning of beam 11 and sealing off and covering anchorage.
In the present embodiment, also including being separately positioned on shear connector 16 on two open ends of standard section, the shearing
Key 16 is to include the joinery and its construction of tenon 161 and tongue-and-groove 162, and in standard section one, open end is uniformly arranged multiple tenons 161,
Another open end is uniformly arranged multiple tongue-and-grooves 162, is close to the inner side of web 3, and its size can be protected with mutually nested laminating with this
Being accurately positioned, contacting stable close and shear resistant capacity during the splicing of card section.The bond distance of shear connector 16 is 0.50m~2.00m,
A width of 0.10m~the 0.30m of key, key depth is 0.2m~1.00m.
In the present embodiment, its set-up mode is that both sides are corresponding to tenon 161 with tongue-and-groove 162, i.e., side is set to tenon
161, and opposite side is set to tongue-and-groove 162.Using the present embodiment standard section assembling when, smear adhesive, shape between section
It is glued into section and stitches；During using cast-in-place ultra-high performance concrete, the wet seam in section is formed, when being glued seam using section, the mark
The I classes cross rib 9 of quasi- section both sides is glued into the II classes cross rib 10 of one piece of entirety with the I classes cross rib 9 of adjacent modular section, improves
Overall uniformity.
In the present embodiment, ultra-high performance concrete is a proprietary name in the art, is generally referred to anti-with superelevation
The good concrete of Compressive Strength, high-tensile, high ductility, high tenacity, high-durability, application property, its be relatively common concrete,
The more excellent concrete material of another kind of mechanical property for high performance concrete, the ultra-high performance concrete is thin
Wall box-beam structure is to be poured to form by ultra-high performance concrete, the ultra-high performance concrete can for RPC,
Very-high performance fibre reinforced concrete, slip casting fiber concrete, it is closely knit match somebody with somebody rib reinforced composite material or engineering latex composite material etc., but
Preferably RPC, very-high performance fibre reinforced concrete or closely knit arrangement of reinforcement cement-base composite material.
Claims (10)
1. a kind of unidirectional prestressing force ultra-high performance concrete Thin-walled Box Girder standard section, it is characterised in that including floorings (1),
Web (3), base plate (4), diaphragm plate (5), prestressing with bond beam (11), external pre-stress bundle (12), longitudinal rib (2), I class cross ribs
(9) and II classes cross rib (10), the floorings (1) and base plate (4) are oppositely arranged, and connect the web (3) respectively by both sides
The standard section of insertion is formed, the diaphragm plate (5) is connected with standard section inwall and perpendicular to the floorings (1),
The longitudinal rib (2) is arranged in the lower wall of the floorings (1) and horizontal with the diaphragm plate (5), I classes cross rib (9) and II classes
Rib (10) is vertical, and the I classes cross rib (9) and II classes cross rib (10) are connected with the lower wall of the floorings (1), and the I classes are horizontal
Rib (9) is arranged on the open end of standard section both sides, the II classes cross rib (10) be arranged at the diaphragm plate (5) it
Between, the I classes cross rib (9) bonding after two adjacent standard knot sections are assembled forms the II classes cross rib (10) together.
2. unidirectional prestressing force ultra-high performance concrete Thin-walled Box Girder standard section according to claim 1, it is characterised in that
Formed between floorings (1), longitudinal rib (2), diaphragm plate (5), I classes cross rib (9) and II classes cross rib (10) in the standard section
The short floor deck system of orthotropic.
3. unidirectional prestressing force ultra-high performance concrete Thin-walled Box Girder standard section according to claim 1, it is characterised in that
Also include internal beam anchoring tooth block (14) and externally cable anchoring tooth block (15), the internal beam anchors tooth block (14) build-in in described
On I classes cross rib (9) and through the diaphragm plate (5), and it is affixed with the lower wall of the floorings (1)；The externally cable anchoring
Tooth block (15) build-in is between the diaphragm plate (5) and affixed with the web (3) madial wall, the external pre-stress bundle (12)
Tooth block (15) is anchored by externally cable to anchor, the prestressing with bond beam (11) anchors tooth block (14) anchor by the internal beam
Gu.
4. unidirectional prestressing force ultra-high performance concrete Thin-walled Box Girder standard section according to claim 1, it is characterised in that
Floorings (1) thickness be 0.07m~0.20m, the longitudinal rib (2) highly be 0.10m~0.30m, the floorings (1) with
Longitudinal rib (2) combination forms short rib structure, and longitudinal rib (2) section is inverted trapezoidal, and its upper limb width is 0.16m~0.30m, under
Edge width is 0.14m~0.28m, and adjacent longitudinal rib (2) center spacing is 0.50~1.20m.
5. unidirectional prestressing force ultra-high performance concrete Thin-walled Box Girder standard section according to claim 1, it is characterised in that
Diaphragm plate (5) in the standard section is twice, and the diaphragm plate (5) includes one upper string board (6), the road side plates of Liang Zhi tetra-
(7) boom plate (8) and is together descended, diaphragm plate (5) thickness is 0.10m~0.20m, and the upper string board (6) is highly two webs
(3) centreline space away from 1/7~1/10, the lower boom plate (8) is highly 0.50m~1.50m, and side plate (7) width is
0.50m~2.00m.
6. unidirectional prestressing force ultra-high performance concrete Thin-walled Box Girder standard section according to claim 3, it is characterised in that
The standard section includes twice I classes cross rib (9) and II classes cross rib (10) together, I classes cross rib (9) thickness for 0.08m~
0.15m, II classes cross rib (10) thickness is 0.12m~0.30m, and the I classes cross rib (9) and II classes cross rib (10) are highly two
Web (3) centreline space away from 1/7~1/30, the I classes cross rib (9) in vivo beam anchoring tooth block (14) position at set a groove
Mouth (17).
7. according to any described unidirectional prestressing force ultra-high performance concrete Thin-walled Box Girder standard sections of claim 1-6, it is special
Levy and be, the web (3) and base plate (4) use thin-walled plate, and web (3) thickness is 0.12m~0.50m, and base plate (4) is thick
Spend for 0.12m~2.00m.
8. unidirectional prestressing force ultra-high performance concrete Thin-walled Box Girder standard section according to claim 7, it is characterised in that
Also include steering block (13), its build-in is on the diaphragm plate (5), and one of face and web (3) madial wall are affixed, in vitro
Prestressing tendon (12) passes through the steering block (13).
9. unidirectional prestressing force ultra-high performance concrete Thin-walled Box Girder standard section according to claim 8, it is characterised in that
Also include being separately positioned on shear connector (16) on two open ends of the standard section, the shear connector (16) is to include tenon
(161) and tongue-and-groove (162) joinery and its construction, the open end of standard section one is provided with multiple tenons (161), another opening
End face is provided with multiple tongue-and-grooves (162), is close on the inside of web (3), and the bond distance of shear connector (16) is 0.50m~2.00m, key
A width of 0.10m~0.30m, key depth is 0.2m~1.00m.
10. unidirectional prestressing force ultra-high performance concrete Thin-walled Box Girder standard section according to claim 9, its feature exists
In the standard section is the standard section of uiform section deck-molding or variable cross-section deck-molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621378357.4U CN206337497U (en) | 2016-12-15 | 2016-12-15 | A kind of unidirectional prestressing force ultra-high performance concrete Thin-walled Box Girder standard section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621378357.4U CN206337497U (en) | 2016-12-15 | 2016-12-15 | A kind of unidirectional prestressing force ultra-high performance concrete Thin-walled Box Girder standard section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206337497U true CN206337497U (en) | 2017-07-18 |
Family
ID=59301229
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621378357.4U Withdrawn - After Issue CN206337497U (en) | 2016-12-15 | 2016-12-15 | A kind of unidirectional prestressing force ultra-high performance concrete Thin-walled Box Girder standard section |
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| CN (1) | CN206337497U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638274A (en) * | 2016-12-15 | 2017-05-10 | 湖南大学 | Unidirectional prestressed ultrahigh-performance concrete thin-walled box girder standard segment |
| CN108385505A (en) * | 2018-05-11 | 2018-08-10 | 湖南省交通规划勘察设计院有限公司 | A kind of seam system and its construction method, box girder bridge for UHPC precast segment box beams |
-
2016
- 2016-12-15 CN CN201621378357.4U patent/CN206337497U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638274A (en) * | 2016-12-15 | 2017-05-10 | 湖南大学 | Unidirectional prestressed ultrahigh-performance concrete thin-walled box girder standard segment |
| CN106638274B (en) * | 2016-12-15 | 2018-04-17 | 湖南大学 | A kind of unidirectional prestressing force ultra-high performance concrete Thin-walled Box Girder standard segment |
| CN108385505A (en) * | 2018-05-11 | 2018-08-10 | 湖南省交通规划勘察设计院有限公司 | A kind of seam system and its construction method, box girder bridge for UHPC precast segment box beams |
| CN108385505B (en) * | 2018-05-11 | 2023-11-21 | 湖南省交通规划勘察设计院有限公司 | Joint system for UHPC segment prefabricated box girder, construction method of joint system and box girder bridge |
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