CN107100062B - A kind of compound section steel box girder and its method of construction - Google Patents
A kind of compound section steel box girder and its method of construction Download PDFInfo
- Publication number
- CN107100062B CN107100062B CN201610093185.4A CN201610093185A CN107100062B CN 107100062 B CN107100062 B CN 107100062B CN 201610093185 A CN201610093185 A CN 201610093185A CN 107100062 B CN107100062 B CN 107100062B
- Authority
- CN
- China
- Prior art keywords
- steel case
- plate
- concrete
- construction
- box girder
- 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.)
- Active
Links
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- 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
- E01D2101/28—Concrete reinforced prestressed
- E01D2101/285—Composite prestressed concrete-metal
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of compound section steel box girder and its methods of construction, belong to high-speed railway bridge field.Steel case in the compound section steel box girder includes adjacent upper steel case and lower steel case, and the public horizontal baffle of the two, lower steel case is interior to be bonded with prefabricated prestressed concrete plate by structure glue.The prestressed concrete plate penetrates lower steel case, and surrounding has structure glue in gap.Because in the Liang Yougang case, concrete roof and lower steel case prestressed concrete plate three parts composition, can on-site assembly, facilitate transport when construction and lifting operation, make it possible land build more large span simply supported girder bridge.With at present compared with the whole picture formula simply supported beam of across footpath, which increases the section rigidity of compound section steel box girder, and smaller beam body weight can increase the across footpath of beam.The present invention constructs reasonable stress, easy for construction, can be used for building the high-speed railway beam bridge of more large span.
Description
Technical field
The present invention relates to a kind of compound section steel box girder and its methods of construction, belong to bridge structure technical field, are mainly used in
High-speed railway bridge.
Background technique
Currently, simply supported girder bridge mostly uses T section beam or box-girder in high-speed railway field, the former is referred to as T
Beam, the latter are referred to as box beam.Because the T beam bridge lateral stiffness of T beam composition is smaller, anti-twisting property is poor, and stability when installation
Poor, the field operation time is long, uses when being not suitable for compared with large span.Simply supported girder bridge compared with large span generally uses box beam.
Box beam includes concrete box girder, steel box-girder and compound section steel box girder.When span is larger, the weight of concrete box girder is very
Greatly, difficulty is brought to pouring or set up, such as 32 meters of high-speed railway integrated box girder weighs about 900 tons, builds height in land
Fast railroad bridge should not use the concrete box girder of more large span.The rigidity of steel box-girder is relatively low, is not suitable for flatness
It is required that extremely stringent high-speed railway field.Therefore, the simply supported girder bridge of more large span is considered as using combination steel in high-speed railway
Box beam.
Compound section steel box girder is composed of the steel case and the concrete slab on top flange plate of lower part, passes through shear connections
Part is connected.The feature that concrete anti-compression ability is strong and steel tensile capacity is high is utilized, takes full advantage of material property.Steel case
The anti-twisting property of beam is strong, and erection construction is easy, and is suitably applied highway and Urban Bridge.It is applied to high-speed railway bridge then still
There is disadvantage, is exactly that vertical rigidity still is apparent not enough.Main cause is that bottom parts only have steel plate, and thickness is typically small.Increase group
The thickness for closing steel box-girder steel plate of baseplate is a kind of strategy, but the more economical thick steel plate thickness that steel and iron industry provides is not too large,
And thicker steel plate brings difficulty to construction and subsequent manufacture.Therefore, box beam bottom plate should be increased by concrete material to rigid
The contribution of degree.
If the direct casting concrete on the steel sole plate of compound section steel box girder, the tensile capacity of concrete material is lower, uses
Under load action, concrete will crack after tension.If applying prestressing force to it, then because of steel sole plate after casting concrete
Presence, the prestressing force applied just only have partial action on concrete slab, and with concrete shrinkage, creep into
It goes, the prestressing force in concrete will be gradually reduced, the cracking being still difficult to avoid that under working load effect.Using steel case as steel
The bottom plate of box beam, internally concrete perfusion or mortar and then to apply prestressing force be a kind of good method, can satisfy work
Cheng Yingyong, but still having the disadvantage in that prestressing force still has most of " consumption " on steel case, and the tensile capacity of steel case is strong,
The partial prestressing is not needed；Concrete or mortar in steel case there are still shrink, problem of creeping, internal prestressing force can be
It is reduced in use process；If pouring the concrete or mortar in steel case before erection, lifting weight just will increase；If in steel case
The concrete or mortar being installed in place in after-pouring bottom plate, then with post-stress, then influence construction speed；Because of the bottom of steel case
Template of the plate as casting concrete or mortar determines that its width can not be larger, and a combination beam is not able to satisfy whole picture bridge
The needs of beam can only can thus be made field operation complicated and be increased the activity duration using the form in laterally more beam assembly.Cause
This, be badly in need of in high-speed railway bridge it is a kind of efficiently and can rapid construction compound section steel box girder.
Summary of the invention
It is an object of the invention to solve the problems, such as above-mentioned the deficiencies in the prior art and, provide a kind of combination steel case
Beam and its method of construction.The surface of the compound section steel box girder is including steel case, top flange plate, mixed with general compound section steel box girder
Solidifying soil top plate, is connected, it is characterised in that: in steel case by being welded in the shear connector of top flange plate upper surface between the latter two
There is a horizontal baffle in portion, and steel case inner space is divided into upper and lower two parts, is referred to as steel case and lower steel case, in lower steel case
Prefabricated prestressed concrete plate is bonded with by structure glue；Prestressed concrete plate in lower steel case is reserved with vertical hole
Hole, while also having an aperture in the bottom plate of lower steel case and top plate corresponding position, fastening bolt is by prestressed concrete plate and lower steel case
Top, bottom plate squeeze it is closely connected；The method of construction of the compound section steel box girder is characterized in that including following construction procedure:
(a) factory manufactures steel case, including the diaphragm plate in upper steel case, ribbed stiffener on the inside of upper steel case web, and top flange plate
The longitudinal and transverse rib of lower surface and the shear connector of top flange plate upper surface, it is prefabricated to penetrate down in concrete prefabricated field
The prestressed concrete plate of steel case, method for prefabricating are pre-tensioning system, and are made of long line method, keep a production line prefabricated simultaneously
Multi-disc prestressed concrete plate, and vertical hole is reserved in corresponding position, hole internal diameter is opened with what is reserved on lower steel case top, bottom plate
Hole internal diameter；
(b) concrete slab in concrete prefabricated field, prefabricated top flange plate, and reserved shearing slot；
(c) the corresponding steel case of same combination beam, concrete slab, prestressed concrete plate are transported to construction site；
(d) after adjusting support position, steel case is installed, then the concrete slab on top flange plate is installed, is poured in shearing slot
Slightly expanded concrete；
(e) after slightly expanded concrete intensity reaches the 85% of design strength, prestressed concrete plate is penetrated into lower steel case,
It is put into the Bao Gangzhi backing plate with the structural adhesive layer equal thickness of design below plate end, and makes lower steel case top, bottom plate and prestressing force
Hole on concrete slab is corresponding, penetrates outer diameter with the pvc pipe of aperture internal diameter, and will pipe and lower steel case top, bottom plate interporal lacuna
It is sealed with mortar；
(f) gap between enclosed beam both ends of the surface prestressed concrete plate and lower steel case, and bottom installation at one end is multiple
Multiple slurry outlets are installed at slurry-feeding hole, the top of the other end, gently from slurry-feeding hole pressure injection modified epoxy structure glue, until
All slurry outlet pulps and bubble-free wipe out exposed PVC after the structure glue intensity of layer to be bonded reaches 100% design strength
Pipe installs fastening bolt.
Further, the prestressed concrete plate in lower steel case is made using super high strength concrete.This is mainly examined
The concrete for considering tensile region can generate biggish stretching strain under working load effect, should have in prestressed concrete plate enough
Big prestressing force deposit.In recent years, the development of super high strength concrete provides support thus, and prefabricated superelevation is strong under general condition
Concrete strength is close to 200MPa, and uses the concrete of reactive powder production, and after steam curing appropriate, intensity is super
300MPa is crossed, close to the intensity of conventional steels.Meanwhile the tensile strength of super high strength concrete is also accordingly improved.In this way, pre-
The compressive pre-stress that 50MPa can be stored more than in the prestressed concrete plate of system, considers further that the tensile strength itself having, in advance
Prestressed concrete plate is just configurable on the tensile region of beam.In view of playing control action in the high-speed railway bridge compared with large span
It is rigidity and non-intensity, the scheme of the invention is reasonable and feasible.
Further, the web of upper steel case is corrugated steel web.Corrugated steel web has started to exist fairly largely in recent years
It is applied in engineering, excellent force-transfer characteristic has obtained the approval of engineering circles.After corrugated steel web, the manufacture of steel case
Become relatively easy, has saved cost.
Further, concrete roof is prefabricated concrete slab, there are shearing slot when prefabricated, passes through cluster type after installation
Shear connector is connected with the top flange plate of steel case.Concrete roof in the present invention can also be other than can be with cast-in-place construction
Prefabricated prestressed concrete plate passes through the upper limb of cluster type shear connector and steel case there are shearing slot when prefabricated after installation
Listrium is connected.These are also the construction method of concrete roof in conventional combination beam.Prefabricated concrete roof can be accelerated to construct
Progress, concrete quality are protected.
Further, there is vertical baffle inside steel case, multiple lateral spaces will be divided into inside steel case.This primarily directed to
Wide cut bridge floor, the internal structure of one case multicell can be formed.
This programme takes full advantage of the high cohesive force, the tension higher than general concrete and anti-pressure ability of current structure glue.
Prefabricated prestressed concrete plate is coupled integrally by adhesive layer with lower steel case.Under normal circumstances, on the cross section of beam, upper steel
Steel case is big under the area ratio of case, and the ribbed stiffener of diaphragm plate and web can be set in upper steel case.Upper steel case web and lower steel case
Web can be same steel plate.
Present invention reserving hole in precast prestressed plate, while also having out in the bottom plate of lower steel case and top plate corresponding position
Hole, fastening bolt squeeze the top of prestressed concrete plate and lower steel case, bottom plate closely connected, which is prefabricated pre- in order to improve
The globality of prestressed concrete plate and lower steel case, it is ensured that the consistency of the two deformation.
Construction method in the present invention can be slightly different with above-mentioned, not use fastening bolt, correspondingly, prestressed concrete
Reserving hole, in this way processing can not simplify manufacture and construction for the top of native plate and lower steel case, bottom plate；It can also coagulation on top flange plate
Native plate is constructed using cast-in-place method, this be not for construction period very high highway bridge, Urban Bridge be it is feasible, coagulation can be saved
The cost of native plate.
Individual plates can be used in precast prestressed concrete plate in the present invention in lower steel case, can also be along the horizontal partition of beam
Multiple narrow boards, do not influence structural behaviour.It can also be longitudinally split, it is contemplated that span centre part is subjected to biggish moment of flexure, Zong Xiangyi
Symmetrically it is divided into three sections.
In order to reduce the maintenance cost in use process, weathering steel is can be used in the steel in the present invention.
Compared with prior art, of the invention a kind of compound section steel box girder and its method of construction have the advantages that
(1) the section bending resistance of compound section steel box girder is increased, the bending stiffness of bridge is improved；
(2) compound section steel box girder branch point manufacture, transports in-site installation, is readily transported；
(3) field-installed method is used, operation is easy to lift；
(4) it is applied to high-speed railway bridge, the span of simply supported beam can be increased；
(5) while rigidity increases, weight is reduced, the frequency of structure is increased, ensure that dynamic when vehicle is passed a bridge
Power stability characteristic (quality).
Detailed description of the invention
The schematic cross-sectional view of Fig. 1 combined box beam；
The schematic cross-sectional view of Fig. 2 prestressed concrete plate；
The schematic cross-sectional view of Fig. 3 prefabricated steel box-girder；
The combined box beam schematic cross-sectional view of Fig. 4 embodiment two；
The combined box beam schematic cross-sectional view of Fig. 5 embodiment one；
It is identified in figure: 1- prestressed concrete plate, 2- presstressed reinforcing steel, 3- adhesive layer, steel case web under 4-, steel bottom under 5-
Plate, two steel case spacing board of 6-, the upper steel case web of 7-, the upper steel case diaphragm plate of 8-, 9- people hole, 10- top flange plate, the connection of 11- peg
Part, 12- concrete roof, 13- fastening bolt, 14- cluster type WELDING STUDS, 15- shear slot, 16- slightly expanded concrete.
Specific embodiment
The following is specific embodiments of the present invention, and technical solution of the present invention is described in conjunction with attached drawing, but this
Invention is not limited to these examples.
Embodiment one
The corresponding schematic diagram of the present embodiment is shown in Fig. 5.The present embodiment is applied to high-speed railway bridge and manufactures and install.This hair
Steel case in bright includes upper steel case and lower steel case.Upper steel case is by upper steel case web (7), two steel case spacing boards (6) and top flange plate
(10) it forms, there is the upper steel case diaphragm plate (8) of fixed spacing arrangement along longitudinal direction in inside, and upper steel case diaphragm plate (8) is intermediate, and there are people
Hole (9)；Lower steel case is made of lower steel case web (4), two steel case spacing board (6) He Xiagang bottom plates (5), is equipped in lower steel case
Prestressed concrete plate (1) has adhesive layer (3) between the two, has presstressed reinforcing steel (2) in prestressed concrete plate (1).Top flange plate
(10) it is connected on prefabricated concrete roof (12), the two is sheared by the cluster type welded on top flange plate (10) upper surface
Nail (14) is connected.Accordingly, the shearing slot (15) of rectangle is reserved on concrete roof (12).Upper steel case web (7) and under
Steel case web (4) is a monolith plain plate of production, makes lower steel case in inverted trapezoidal.Correspondingly, prestressed concrete plate (1) is also
Inverted trapezoidal.Steel case shape in this example is more attractive.
The method of construction of steel box-girder includes the following steps: in the present embodiment
(a) factory manufactures steel case, including upper steel case diaphragm plate (8), the ribbed stiffener on the inside of upper steel case web (7), top flange
The longitudinal and transverse rib of plate (10) lower surface and the cluster type WELDING STUDS (14) of top flange plate (10) upper surface, concrete prefabricated
, the prefabricated prestressed concrete plate (1) that will penetrate lower steel case, method for prefabricating is pre-tensioning system, and is made of long line method, is made
One production line can prefabricated multi-disc prestressed concrete plate (1) simultaneously, and reserve vertical hole in corresponding position, hole internal diameter is same
The aperture internal diameter reserved on lower steel case top, bottom plate；
(b) concrete roof (12) in concrete prefabricated field, prefabricated top flange plate (10), and reserved shearing slot
(15)；
(c) the corresponding steel case of same combination beam, concrete roof (12), prestressed concrete plate (1) are transported to construction now
；
(d) after adjusting support position, steel case is installed, then the concrete roof (12) on top flange plate (10) is installed, is cutting
Slightly expanded concrete (16) are poured in power slot (15)；
(e) after slightly expanded concrete (16) intensity reaches the 85% of design strength, prestressed concrete plate (1) is penetrated
Lower steel case is put into the Bao Gangzhi backing plate with adhesive layer (3) equal thickness of design below plate end, and makes lower steel case top, bottom plate
And the hole on prestressed concrete plate (1) is corresponding, penetrates outer diameter with the pvc pipe of aperture internal diameter, and will pipe with lower steel case top,
Bottom plate interporal lacuna is sealed with mortar；
(f) gap between enclosed beam both ends of the surface prestressed concrete plate (1) and lower steel case, and bottom installation at one end
Multiple slurry outlets are installed at multiple slurry-feeding holes, the top of the other end, gently from slurry-feeding hole pressure injection modified epoxy structure glue,
Until all slurry outlet pulp and bubble-free, after the structure glue intensity of layer (3) to be bonded reaches 100% design strength, wipe out outer
The pvc pipe of dew is installed fastening bolt (13).After the compound section steel box girder is installed, Roadway Construction can proceed with.
Embodiment two
The corresponding schematic diagram of the present embodiment is shown in Fig. 4, is applied to Urban Bridge, corresponding project Bridge is across several less.This
Embodiment is the modification to embodiment one, builds concrete roof (12) using cast-in-place method, the welding of top flange plate (10) upper surface
There are Welded-Stud Conectors (11).Correspondingly, it is omitted the step (b) in method of construction, and by concrete top prefabricated in step (d)
The installation of plate (12), is changed to cast in situs.After pouring, is conserved 7 days by construction requirement, can just carry out the construction of next step.
The production of upper steel case welds the flute profile steel member of U-shaped with conventional steel box-girder below its bottom plate, forms lower steel case.The implementation
Example reduces prefabricated workload, and reduces installation workload, but need to reinforce site quality management, correspondingly increases construction
Time.
Embodiment three
The corresponding schematic diagram of the embodiment is shown in Fig. 1, Fig. 2 and Fig. 3.The present embodiment is the modification to embodiment two.Mainly
In view of the bottom of fastening bolt (13) is outside the lower surface of lower steel bottom plate (5), that is, on the outside of steel case, beauty is influenced, is given
To cancel, to simplify prefabricated and site operation.
Claims (5)
1. a kind of method of construction of compound section steel box girder, the surface of the compound section steel box girder with general compound section steel box girder,
Including steel case, top flange plate, concrete roof, by being welded in the shear connector phase of top flange plate upper surface between the latter two
Even, there is a horizontal baffle inside steel case, steel case inner space be divided into upper and lower two parts, is referred to as steel case and lower steel case,
Prefabricated prestressed concrete plate is bonded with by structure glue in lower steel case；Prestressed concrete plate in lower steel case is reserved with perpendicular
To hole, while also having an aperture in the bottom plate of lower steel case and top plate corresponding position, fastening bolt by prestressed concrete plate with
The top of lower steel case, bottom plate squeeze closely connected；The method of construction of the compound section steel box girder is characterized in that including following construction procedure:
(a) factory manufactures steel case, including the diaphragm plate in upper steel case, ribbed stiffener on the inside of upper steel case web, and top flange plate following table
The longitudinal and transverse rib in face and the shear connector of top flange plate upper surface, it is prefabricated to penetrate lower steel case in concrete prefabricated field
Prestressed concrete plate, method for prefabricating is pre-tensioning system, and using long line method make, make a production line can simultaneously prefabricated multi-disc
Prestressed concrete plate, and vertical hole is reserved in corresponding position, hole internal diameter is the same as in the aperture reserved on lower steel case top, bottom plate
Diameter；
(b) concrete slab in concrete prefabricated field, prefabricated top flange plate, and reserved shearing slot；
(c) the corresponding steel case of same combination beam, concrete slab, prestressed concrete plate are transported to construction site；
(d) after adjusting support position, steel case is installed, then the concrete slab on top flange plate is installed, is poured in shearing slot micro- swollen
Swollen concrete；
(e) after slightly expanded concrete intensity reaches the 85% of design strength, prestressed concrete plate is penetrated into lower steel case, in plate
It is put into the Bao Gangzhi backing plate with the structural adhesive layer equal thickness of design below end, and makes lower steel case top, bottom plate and prestressed concrete
Hole on native plate is corresponding, penetrates outer diameter with the pvc pipe of aperture internal diameter, and by pipe and lower steel case top, bottom plate interporal lacuna sand
Slurry sealing；
(f) gap between enclosed beam both ends of the surface prestressed concrete plate and lower steel case, and bottom installation at one end is multiple into slurry
Multiple slurry outlets are installed at the top in hole, the other end, gently from slurry-feeding hole pressure injection modified epoxy structure glue, until all
Slurry outlet pulp and bubble-free wipe out exposed pvc pipe after the structure glue intensity of layer to be bonded reaches 100% design strength,
Fastening bolt is installed.
2. a kind of method of construction of compound section steel box girder according to claim 1, it is characterised in that: the prestressing force in lower steel case
Concrete slab is made using super high strength concrete.
3. a kind of method of construction of compound section steel box girder according to claim 2, it is characterised in that: the web of upper steel case is wave
Line steel web.
4. a kind of method of construction of compound section steel box girder according to claim 2, it is characterised in that: concrete roof is prefabricated
Concrete slab be connected with the top flange plate of steel case after installation by cluster type shear connector there are shearing slot when prefabricated.
5. a kind of method of construction of compound section steel box girder according to claim 2, it is characterised in that: have inside steel case vertically every
Plate will be divided into multiple lateral spaces inside steel case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610093185.4A CN107100062B (en) | 2016-02-22 | 2016-02-22 | A kind of compound section steel box girder and its method of construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610093185.4A CN107100062B (en) | 2016-02-22 | 2016-02-22 | A kind of compound section steel box girder and its method of construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107100062A CN107100062A (en) | 2017-08-29 |
| CN107100062B true CN107100062B (en) | 2019-11-08 |
Family
ID=59658638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610093185.4A Active CN107100062B (en) | 2016-02-22 | 2016-02-22 | A kind of compound section steel box girder and its method of construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107100062B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107938494B (en) * | 2017-11-17 | 2023-09-29 | 上海市城市建设设计研究总院（集团）有限公司 | Inner-crossing steel diaphragm plate component convenient for field installation, installation method thereof and combined beam |
| CN109440628A (en) * | 2018-11-11 | 2019-03-08 | 中铁二院工程集团有限责任公司 | Connecting structure between assembled steel web and precast slab |
| CN112554066A (en) * | 2020-11-30 | 2021-03-26 | 中铁大桥局集团有限公司 | Construction method of steel-concrete composite beam and steel-concrete composite beam |
| CN113215959A (en) * | 2021-05-15 | 2021-08-06 | 石家庄铁道大学 | Shear-resistant connecting member for steel-concrete composite beam |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040102242A (en) * | 2003-05-27 | 2004-12-04 | 주식회사 동아기술공사 | Strong form structure that ease exchange of support |
| CN203654154U (en) * | 2013-11-11 | 2014-06-18 | 中铁十五局集团有限公司 | Steel box girder |
| CN203846408U (en) * | 2014-05-21 | 2014-09-24 | 郑州市公路工程公司 | Efficient convenience sound-absorbing noise-reducing driving guidance system |
| CN104074128A (en) * | 2014-06-05 | 2014-10-01 | 邢台路桥建设总公司 | Torsion-resistant assembly type steel box composite beam and manufacturing method thereof |
| CN204875478U (en) * | 2015-08-28 | 2015-12-16 | 河南省中原奥起实业有限公司 | Split type steel case roof beam |
| CN205399174U (en) * | 2016-02-22 | 2016-07-27 | 郑州大学 | Combination steel case roof beam |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8104130B2 (en) * | 2007-09-27 | 2012-01-31 | Marc Lerner | Bridge structure |
-
2016
- 2016-02-22 CN CN201610093185.4A patent/CN107100062B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040102242A (en) * | 2003-05-27 | 2004-12-04 | 주식회사 동아기술공사 | Strong form structure that ease exchange of support |
| CN203654154U (en) * | 2013-11-11 | 2014-06-18 | 中铁十五局集团有限公司 | Steel box girder |
| CN203846408U (en) * | 2014-05-21 | 2014-09-24 | 郑州市公路工程公司 | Efficient convenience sound-absorbing noise-reducing driving guidance system |
| CN104074128A (en) * | 2014-06-05 | 2014-10-01 | 邢台路桥建设总公司 | Torsion-resistant assembly type steel box composite beam and manufacturing method thereof |
| CN204875478U (en) * | 2015-08-28 | 2015-12-16 | 河南省中原奥起实业有限公司 | Split type steel case roof beam |
| CN205399174U (en) * | 2016-02-22 | 2016-07-27 | 郑州大学 | Combination steel case roof beam |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107100062A (en) | 2017-08-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107100065B (en) | A kind of compound section steel box girder and its method of construction for high-speed railway | |
| CN106677049B (en) | Assembled steel-concrete combined structure bridge and construction method | |
| CN104831617B (en) | Steel-ultra-high performance concrete combination beam based on fin-plate type bridge floor and construction method | |
| CN107100062B (en) | A kind of compound section steel box girder and its method of construction | |
| CN101994293B (en) | High pier coping construction method | |
| CN101613997B (en) | Method for widening steel-concrete combination | |
| CN102535355B (en) | Method for reinforcing bridge structure separated steel-concrete combined truss | |
| CN202247707U (en) | Vertical external prestress and steel plate combined reinforcing box girder structure | |
| CN106013432B (en) | A kind of high ductility prefabricated integral frame interior joint connection structure and construction method | |
| CN106284044A (en) | A kind of Novel steel concrete composite bridge and construction method thereof | |
| CN204662235U (en) | A kind of steel plate combination T beam bridge | |
| CN104762871A (en) | Prestressed concrete-steel tank beam bond beam continuous beam bridge | |
| CN205399184U (en) | A combination steel case roof beam for high -speed railway | |
| CN104264594B (en) | A kind of self-balancing tied arch system for improving PSC continuous box girder bridge bearing ability and the method using it to reinforce | |
| CN108193607B (en) | Fabricated prestressed truss for reinforcement and construction method thereof | |
| WO2017185905A1 (en) | Ribbed column distributed turnout foundation structure for low-set mid-to-low speed magnetic levitation line | |
| CN105821750B (en) | A kind of precast prestressed T plate and its application method | |
| CN106087745B (en) | A kind of multiple-piece composite beam bridge top and the bottom monolithic construction construction method | |
| CN104652293A (en) | Cable-stayed bridge structure used for reinforcing PSC (Pre-stressed Concrete) continuous box girder bridge and construction method | |
| CN104652242A (en) | Derrick connecting structure used for reinforcing PSC (Pre-stressed Concrete) continuous box girder bridge and construction method | |
| CN101440598A (en) | Steel box-concrete combined box plate arch structure and construction method thereof | |
| CN110700103A (en) | Construction method of continuous composite beam | |
| CN106758773A (en) | A kind of shear connector of steel reinforced concrete composite beam bridge | |
| CN110331664B (en) | Steel-concrete mixed continuous box girder bridge deck joint structure and construction method thereof | |
| CN205399174U (en) | Combination steel case roof beam |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |