CN110528377A - Fashioned iron and concrete composite bridge - Google Patents

Fashioned iron and concrete composite bridge Download PDF

Info

Publication number
CN110528377A
CN110528377A CN201910785166.1A CN201910785166A CN110528377A CN 110528377 A CN110528377 A CN 110528377A CN 201910785166 A CN201910785166 A CN 201910785166A CN 110528377 A CN110528377 A CN 110528377A
Authority
CN
China
Prior art keywords
concrete
bridge
stringer
crossbeam
fashioned iron
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910785166.1A
Other languages
Chinese (zh)
Inventor
张冠华
鲁薇薇
陈建荣
王振吉
吴宪锴
马森
王佳伟
韩基刚
周丹
李万德
李文全
郭东升
商东洋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liaoning Communication Planning And Design Institute Co Ltd
Original Assignee
Liaoning Communication Planning And Design Institute Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Liaoning Communication Planning And Design Institute Co Ltd filed Critical Liaoning Communication Planning And Design Institute Co Ltd
Priority to CN201910785166.1A priority Critical patent/CN110528377A/en
Publication of CN110528377A publication Critical patent/CN110528377A/en
Pending legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • E01D19/12Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
    • E01D19/125Grating or flooring for bridges
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2/00Bridges characterised by the cross-section of their bearing spanning structure
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00Material constitution of bridges
    • E01D2101/20Concrete, stone or stone-like material
    • E01D2101/24Concrete
    • E01D2101/26Concrete reinforced
    • E01D2101/268Composite concrete-metal

Abstract

Fashioned iron and concrete composite bridge are disclosed, bridge technology field is belonged to.Be set to longeron end along the longitudinally disposed of bridge, crossbeam including stringer, crossbeam, the first coagulation section and the second concrete section, stringer, in longitudinal and cross beam upper planar shaped at combination beam bridge floor;Second concrete section is set to the continuous section of the combination beam bridge floor of bridge, and the first concrete section is set to the periphery that bridge floor removes the second concrete section;Wherein, the concrete of the second concrete section is 40GPa~50GPa, compression strength 140~200MPa of range by the value range of elasticity modulus, and the high performance concrete of 6~10MPa of tension cracking strength range is made.Second concrete section is able to ascend the cracking resistance that steel-mixes combined bridge continuous deck, deck expansion joint is reduced, the rigidity of structure is improved, reduces material utilization amount, with good integrity, the advantages such as overload capacity is strong, safety is high, and later period maintenance maintenance cost can be reduced.

Description

Fashioned iron and concrete composite bridge
Technical field
The present invention relates to bridge technology fields, more particularly to a kind of fashioned iron and concrete composite bridge.
Background technique
China, which is in, at present widelys popularize under Steel Structure Industry historical background, and full steel structure has very much in industrialization Benefit, but apply the economy in Short/Medium Span Bridge construction not strong.The bearing capacity of steel-concrete combined structure is high, durability is strong, And it is easy to produce industrialization, expenditure of construction is low, construction is quick, a large amount of domestic and foreign experiences show that steel-concrete combined structure has become public affairs The important development direction of road field of traffic industrialization.Especially the fashioned iron of hot-rolled steel section combination beam uses hot-roll forming, reduces scene Welding procedure, simplify construction, can further decrease bridge construction expense, improve bridge construction matter effect, have it is good society and Economic benefit.But due to temperature deformation, shrinking, creeping etc. and making by the asynchronous deformation of adjacent bridge opening support etc., cyclic reverse loading With influence, the generally existing problem of Cracking of bridge floor continuous section of beam reduces continuous segment and scratches to the constraint of girder, increase girder span centre Degree, to bring adverse effect to bridge working performance.Currently, since continuous deck Cracking analysis theory is not perfect, limitation The design and construction optimization of structure, hinders popularization and application of such bridge in engineering.
Summary of the invention
In view of this, the present invention provides a kind of fashioned iron and concrete composite bridge, with bridge floor continuous section cracking resistance Performance is good, good integrity, the advantage that overload capacity is strong, highly-safe, thus more suitable for practical.
In order to achieve the above object, the technical solution of fashioned iron provided by the invention and concrete composite bridge is as follows:
Fashioned iron provided by the invention and concrete composite bridge include stringer (1), crossbeam (3), the first coagulation section (2) and Second concrete section (8),
The stringer (1) is set to the end of the stringer (1) along the longitudinally disposed of bridge, the crossbeam (3), in described vertical The upper planar shaped of beam (1) and crossbeam (3) is at combination beam bridge floor;
The second concrete section (8) is set to the continuous section of the combination beam bridge floor of the bridge (1),
The first concrete section (2) is set to the periphery that bridge floor removes the second concrete section (8);
Wherein, the concrete of the second concrete section (8) by elasticity modulus value range be 40GPa~50GPa, The high performance concrete of compression strength 140~200MPa of range, 6~10MPa of tension cracking strength range are made.
Fashioned iron provided by the invention also can be used following technical measures with concrete composite bridge and further realize.
Preferably, the second concrete section (8) is formed directly into the combination beam bridge floor using cast-in-place mode Continuous section.
Preferably, the first concrete section (2) is prefabrication concrete component or uses cast-in-place mode straight It connects to be formed, is located at the periphery that bridge floor removes the second concrete section (8).
Preferably, the stringer (1) is steel construction.
Preferably, the steel construction is made of hot-rolled steel section.
Preferably, the fashioned iron and concrete composite bridge further include WELDING STUDS area,
The WELDING STUDS area is set to the stringer (1) top flange plate and the composite beam bridge panel faying face,
Preferably, the WELDING STUDS area includes the first WELDING STUDS area (11) and the second WELDING STUDS area (10),
Second WELDING STUDS area (10) is set to the first concrete section (2) and the second concrete section (8) Intersection,
The density of setting in second WELDING STUDS area (10) is greater than the density of setting in first WELDING STUDS area (11).
Preferably, the crossbeam (3) is internally provided with connector (4),
The crossbeam (3) is made of concrete, and connector (4) is formed from steel and sets along the short transverse of the crossbeam (3) It sets,
The height of the connector (4) is equal to the web height of the stringer (1).Preferably, the connector (4) The equal indention of both sides of the face, the connector (4) are connected by being set to the end face of its two sides with the crossbeam (3).
Preferably, the concrete composite bridge further includes anti-stick dielectric layer (12),
The anti-stick dielectric layer (12) is set between the second concrete section (8) and the crossbeam (3).
Fashioned iron provided by the invention and concrete composite bridge are in the upper planar shaped of stringer 1 and crossbeam 3 at combining beam bridge floor Continuous section setting by elasticity modulus value range be 40GPa~50GPa, compression strength 140~200MPa of range, tension Second concrete section 8 made of the high performance concrete of 6~10MPa of cracking strength range, high performance concrete have highly resistance Tensile strength, high ductility, high-durability, high workability and high volume stability, therefore, fashioned iron provided by the invention and coagulation local soil type It closes bridge and is able to ascend the cracking resistance that steel-mixes combined bridge continuous deck, reduce deck expansion joint, improve the rigidity of structure, drop Low material utilization amount has good integrity, the advantages such as overload capacity is strong, safety is high, and can reduce later period maintenance maintenance cost, because This, fashioned iron provided by the invention and concrete composite bridge technology with higher, economic and social benefit.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 is that the structure of a typical directions of the embodiment of the present invention fashioned iron being related to and concrete composite bridge is shown It is intended to;
Fig. 2 be in Fig. 1 A-A to schematic cross-sectional view;
Fig. 3 is B-B direction schematic cross-sectional view in Fig. 2;
Fig. 4 be in Fig. 2 C-C to schematic cross-sectional view;
Fig. 5 be in Fig. 2 D-D to schematic cross-sectional view.
Specific embodiment
The present invention in order to solve the problems existing in the prior art, provides a kind of fashioned iron and concrete composite bridge, with bridge Face continuous section cracking resistance is good, good integrity, the advantage that overload capacity is strong, highly-safe, thus more suitable for practical.
It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with Attached drawing and preferred embodiment, to fashioned iron proposed according to the present invention and concrete composite bridge, specific embodiment, structure, Feature and its effect, detailed description is as follows.In the following description, what different " embodiment " or " embodiment " referred to is not necessarily The same embodiment.In addition, the feature, structure or feature in one or more embodiments can be combined by any suitable form.
The terms "and/or", only a kind of incidence relation for describing affiliated partner, indicates that there may be three kinds of passes System, it is specific to understand for example, A and/or B are as follows: it can simultaneously include A and B, can be with individualism A, it can also be with individualism B can have above-mentioned three kinds of any case.
Referring to 1~attached drawing of attached drawing 5, fashioned iron provided in an embodiment of the present invention and concrete composite bridge include stringer 1, crossbeam 3, the first coagulation section 2 and the second concrete section 8.For stringer 1 along the longitudinally disposed of bridge, crossbeam 3 is set to 1 end of stringer, in The upper planar shaped of stringer 1 and crossbeam 3 is at combination beam bridge floor.Second concrete section 8 is set to the company of the combination beam bridge floor of bridge 1 Continuous section, the first concrete section 2 are set to the periphery that bridge floor removes the second concrete section 8.Wherein, the second concrete section 8 Concrete by the value range of elasticity modulus be 40GPa~50GPa, compression strength 140~200MPa of range, tension cracking is strong The high performance concrete of degree 6~10MPa of range is made.
Fashioned iron provided in an embodiment of the present invention and concrete composite bridge are in the upper planar shaped of stringer 1 and crossbeam 3 at combining Beam bridge floor continuous section setting by elasticity modulus value range be 40GPa~50GPa, compression strength range 140~ 200MPa, the second concrete section 8 made of the high performance concrete of 6~10MPa of tension cracking strength range, high-performance coagulation Soil has high-tensile, high ductility, high-durability, high workability and high volume stability, therefore, fashioned iron provided by the invention It is able to ascend the cracking resistance that steel-mixes combined bridge continuous deck with concrete composite bridge, reduces deck expansion joint, improves knot Structure rigidity reduces material utilization amount, has good integrity, the advantages such as overload capacity is strong, safety is high, and can reduce later period maintenance and support Cost is protected, therefore, fashioned iron provided by the invention and concrete composite bridge technology with higher, economic and social benefit.
Wherein, the second concrete section 8 is formed directly into the continuous section of combination beam bridge floor using cast-in-place mode.It is constructing The concrete of live formwork casting, with good integrity, rigidity is big, and anti-knock shock resistance is good, good waterproof performance, to irregular flat Face it is adaptable, punch the advantages that easy, therefore, after enabling to fashioned iron provided by the invention and concrete composite bridge Phase maintenance cost is lower.Wherein, the first concrete section 2 is prefabrication concrete component or is formed using cast-in-place mode, The periphery of the second concrete section 8 is removed positioned at bridge floor.In the present embodiment, the first prefabrication concrete structure of concrete section 2 Part.Wherein, concrete prefabricated element is using concrete as the basic material building element made of factory in advance.Including beam, plate, Column and construction and decoration accessory etc..It is assembled for construction site.It is the material base of building industrialization.Feature: 1, structural behaviour is good, Structural mechanics can be effectively ensured using batch production production, discreteness is small.2, speed of application is fast, good product quality, any surface finish Degree is high, can reach the decorative effect of clear-water concrete, is uniformly coordinated structure and building.3, the factorial production energy conservation, is conducive to Environmental protection reduces the noise of site operation.4, fire protecting performance is good.The the first concrete section 2 that will be made of concrete prefabricated element It is used in combination, can be improved provided in an embodiment of the present invention with by the second concrete section 8 directly formed using cast-in-place mode The construction efficiency of fashioned iron and concrete composite bridge.
Wherein, stringer 1 is steel construction.It has be self-possessed it is lighter, the reliability of work is higher, shock resistance, good impact resistance, The industrialization degree of manufacture is higher, can quickly and accurately assemble, may be readily formed as the characteristics of sealing structure, with it is pre- by concrete The first concrete section 2 that component processed is constituted passes through shearing with the second concrete section 8 by directly being formed using cast-in-place mode After the connection of pin structure 10 and 11 is integral, steel construction and the respective advantage of concrete structure can be given full play to, so that the present invention is real The fashioned iron and concrete composite bridge for applying example offer are easier to form, and functional reliability is higher.
Wherein, steel construction is made of hot rolling i shaped steel.I-steel is also referred to as girder steel, is the strip that section is I-shaped shape Steel.I-steel is a kind of economical section steel that section mechanical property is more excellent, and feature includes: that the edge of a wing is wide, laterally Rigidity is big.Bending resistance is strong.Two surface of the edge of a wing is parallel to each other so that connecting, processing, simple installation.Compared with normal section steel, at This is low, and precision is high, and residual stress is small, and without expensive welding material and weld seam detection, it is left to save structure steel fabrication cost 30% It is right.Under same cross-sectional load, hot rolling H steel construction is than traditional structure weight saving 15%-20%.Compared with concrete structure, work Word steel construction can increase 6% usable floor area, and dead load mitigates 20% -30%, reduce structure and design internal force.I-steel It can be processed into T-steel, Honeycomb Beam can be combined to form various section forms, greatly meet engineering design and production demand.
Wherein, fashioned iron and concrete composite bridge further include WELDING STUDS area.WELDING STUDS area be set to 1 top flange plate of stringer with Composite beam bridge panel faying face.Fashioned iron provided in an embodiment of the present invention is continuous with the combination beam bridge floor in concrete composite bridge In beam-ends a certain range of section, 1 top flange plate of stringer does not lay WELDING STUDS, and the purpose being arranged in this way is to adapt to bridge floor and connect Continuous section deformation requirements, cooperate the ductility and deformation performance of high performance concrete, can both give full play to ultra-high performance concrete Ductility and superpower tensile property advantage, can also be with saving steel dosage.
Wherein, WELDING STUDS area includes the first WELDING STUDS area 11 and the second WELDING STUDS area 10.Second WELDING STUDS area 10 is set to The intersection of first concrete section 2 and the second concrete section 8, the density of setting in the second WELDING STUDS area 10 are greater than the first shearing Follow closely the density of setting in area 11.Under normal conditions, since the intersection of the first concrete section 2 and the second concrete section 8 is suitable In there are jointings, when load herein is larger, it is easy to cause mixed first because the bending stress born is excessive The intersection of solidifying soil section 2 and the second concrete section 8 is broken, at this point, since the second WELDING STUDS area 10 is set to first The density of setting of the intersection of concrete section 2 and the second concrete section 8, the second WELDING STUDS area 10 is greater than the first WELDING STUDS area Therefore 11 density of setting can increase the bonding strength at the second WELDING STUDS area 10, so as to guarantee the first concrete region The bonding strength of the intersection of section 2 and the second concrete section 8.
Wherein, crossbeam 3 is internally provided with connector 4.Crossbeam 3 is made of armored concrete, and connector 4 is formed from steel simultaneously Short transverse along crossbeam 3 is arranged, and the height of connector 4 is equal to the web height of stringer 1.In the end of stringer 1, crossbeam is set 3, on the one hand it is to play lateral connection to indulge beam action, enhances the holistic resistant behavior of bridge;It on the one hand is to prevent from being located at stretching Seam 1 beam-ends fashioned iron of position stringer is corroded by environmental activities such as rainwater.It is connected between stringer 1 and crossbeam 3 only in insertion crossbeam 3 Part shaped steel and surrounding concrete bite force, and the switching performance of stringer 1 and crossbeam 3 can be enhanced by the way that connector 4 is arranged.Together When, shearing is larger at fulcrum, only leans on 1 shape steel web Transfer of Shear of stringer, is unfavorable for structure stress, can by the way that connector 4 is arranged The effective shear resistent area for increasing stringer 1 is conducive to transmitting of the shearing between fashioned iron and crossbeam 3 at fulcrum, can significantly improve Structure shear resistance, to improve the maximum load of fashioned iron provided by the invention and concrete composite bridge.
Wherein, the equal indention of the both sides of the face of connector 4, connector 4 by be set to its two sides end face and crossbeam 3 It is connected.The zigzag connector 4 can both increase the occlusal ability of stringer 1 Yu 3 concrete of crossbeam, be also convenient for inside crossbeam 3 The laying of transverse steel 7.
Wherein, concrete composite bridge further includes anti-stick dielectric layer 12.Anti-stick dielectric layer 12 is set to the second coagulation Between native section 8 and combination beam bridge floor.In this case, by anti-stick dielectric layer 12, it can guarantee the second concrete region Section 8 is not bonded with 3 top surface of crossbeam.In the present embodiment, anti-stick dielectric layer 12 is the rubber slab with steel beam flange plate uniform thickness.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to include these modifications and variations.

Claims (10)

1. a kind of fashioned iron and concrete composite bridge, which is characterized in that including stringer (1), crossbeam (3), the first coagulation section (2) With the second concrete section (8),
The stringer (1) is set to stringer (1) end, Yu Suoshu stringer (1) and cross along the longitudinally disposed of bridge, the crossbeam (3) The upper planar shaped of beam (3) is at combination beam bridge floor;
The second concrete section (8) is set to the continuous section of the combination beam bridge floor of the stringer (1),
The first concrete section (2) is set to the periphery that bridge floor removes the second concrete section (8);
Wherein, the concrete of the second concrete section (8) is 40GPa~50GPa, resistance to compression by the value range of elasticity modulus The high performance concrete of 140~200MPa of strength range, 6~10MPa of tension cracking strength range are made.
2. fashioned iron according to claim 1 and concrete composite bridge, which is characterized in that the second concrete section (8) continuous section of the combination beam bridge floor is formed directly into using cast-in-place mode.
3. fashioned iron according to claim 1 and concrete composite bridge, which is characterized in that the first concrete section (2) it is formed for prefabrication concrete component or using cast-in-place mode, is located at bridge floor except the second concrete section (8) Periphery.
4. fashioned iron according to claim 1 and concrete composite bridge, which is characterized in that the stringer (1) is steel construction.
5. fashioned iron according to claim 4 and concrete composite bridge, which is characterized in that the steel construction is by hot-rolled steel section It is made.
6. fashioned iron according to claim 1 and concrete composite bridge, which is characterized in that it further include WELDING STUDS area,
The WELDING STUDS area is set to the stringer (1) top flange plate and the composite beam bridge panel faying face.
7. fashioned iron according to claim 6 and concrete composite bridge, which is characterized in that the WELDING STUDS area includes first WELDING STUDS area (11) and the second WELDING STUDS area (10),
Second WELDING STUDS area (10) is set to the boundary of the first concrete section (2) and the second concrete section (8) Place,
The density of setting in second WELDING STUDS area (10) is greater than the density of setting in first WELDING STUDS area (11).
8. concrete composite bridge according to claim 1, which is characterized in that the company of being internally provided with of the crossbeam (3) Fitting (4),
The crossbeam (3) is made of concrete, and connector (4) is formed from steel and is arranged along the short transverse of the crossbeam (3),
The height of the connector (4) is equal to the web height of the stringer (1).
9. concrete composite bridge according to claim 8, which is characterized in that the both sides of the face of the connector (4) are equal Indention, the connector (4) are connected by being set to the end face of its two sides with the crossbeam (3).
10. concrete composite bridge according to claim 1, which is characterized in that it further include anti-stick dielectric layer (12),
The anti-stick dielectric layer (12) is set between the second concrete section (8) and the crossbeam (3).
CN201910785166.1A 2019-08-23 2019-08-23 Fashioned iron and concrete composite bridge Pending CN110528377A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910785166.1A CN110528377A (en) 2019-08-23 2019-08-23 Fashioned iron and concrete composite bridge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910785166.1A CN110528377A (en) 2019-08-23 2019-08-23 Fashioned iron and concrete composite bridge

Publications (1)

Publication Number Publication Date
CN110528377A true CN110528377A (en) 2019-12-03

Family

ID=68664149

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910785166.1A Pending CN110528377A (en) 2019-08-23 2019-08-23 Fashioned iron and concrete composite bridge

Country Status (1)

Country Link
CN (1) CN110528377A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111519527A (en) * 2020-05-11 2020-08-11 中铁二十局集团市政工程有限公司 Flexible joint connecting structure for steel structure bridge panel and construction method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111519527A (en) * 2020-05-11 2020-08-11 中铁二十局集团市政工程有限公司 Flexible joint connecting structure for steel structure bridge panel and construction method thereof

Similar Documents

Publication Publication Date Title
CN104831617B (en) Steel-ultra-high performance concrete combination beam based on fin-plate type bridge floor and construction method
CN108221634A (en) The Wavelike steel webplate I-shaped composite beam bridge of maximum assembling
CN103741582B (en) A kind of prestressed concrete composite box-girder with corrugated steel webs and construction method thereof
CN103614964A (en) Steel box beam orthotropic deck slab
CN108824162A (en) A kind of steel_concrete composite beam and its construction method using plain plate and corrugated sheet steel mixing web
CN108560419B (en) L-shaped side groove UHPC bridge deck slab in hogging moment area of steel-concrete composite beam and longitudinal connection thereof
CN105862597B (en) A kind of multiple-piece composite beam bridge top and the bottom monolithic construction construction method
CN102966050A (en) Longitudinal connection method for steel-concrete combined beam and existing reinforced concrete T beam
CN110983967B (en) Bridge deck continuous process
CN108589971A (en) A kind of closed-section steel deck combined concrete shear wall connecting node and production method
CN110528377A (en) Fashioned iron and concrete composite bridge
CN110847007A (en) Section steel-concrete composite beam hogging moment area structure based on high-performance material
CN109024219B (en) Prefabricated ultrahigh-performance concrete-common concrete combined beam bridge structure and construction method
CN109183634A (en) The construction and its construction method of simply supported T-beam bridge serialization are realized in end floor beam connection
CN104988843A (en) Bridge combined by steel structural box girder and concrete bridge deck panel
CN203383137U (en) Transversely assembled corrugated steel web combined box girder
CN103205930B (en) Structure for continuous transformation of existing simply supported hollow slab girder bridge and construction method of structure
CN112663486A (en) Steel-concrete combined beam structure with increased steel beam in hogging moment area and construction method
CN210621466U (en) Combined bridge deck with fatigue resistance
CN101245619A (en) Combined steel plate shearing force wall with large aspect ratio
CN109853377A (en) Using the continuously coupled structure of the bridge floor of ultra-high performance concrete and its construction method
CN207878254U (en) A kind of assembled light combination beam freely-supported structure changes continuous structure
CN207846187U (en) A kind of Wavelike steel webplate I-shaped composite beam bridge of maximum assembling
CN211200025U (en) Shaped steel and concrete combined bridge
CN210766389U (en) Super high performance concrete dense ribbed slab without transverse ribs

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination