CN103422617B - The continuous i beam of Wavelike steel webplate steel-concrete combined structure - Google Patents
The continuous i beam of Wavelike steel webplate steel-concrete combined structure Download PDFInfo
- Publication number
- CN103422617B CN103422617B CN201310308354.8A CN201310308354A CN103422617B CN 103422617 B CN103422617 B CN 103422617B CN 201310308354 A CN201310308354 A CN 201310308354A CN 103422617 B CN103422617 B CN 103422617B
- Authority
- CN
- China
- Prior art keywords
- steel plate
- steel
- webplate
- wavelike
- flange steel
- 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
Landscapes
- Bridges Or Land Bridges (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The present invention relates to i beam, disclose the continuous i beam of a kind of Wavelike steel webplate steel-concrete combined structure, comprise one piece of Wavelike steel webplate, top flange steel plate and concrete combined structure, bottom flange steel plate, described Wavelike steel webplate is arranged between top flange steel plate and bottom flange steel plate, top flange steel plate, bottom flange steel plate and Wavelike steel webplate are all by being welded to connect, being connected by one or more in link or steel strand cable between single girder construction, form beam structure, the frange plate of bearing area and Combined concrete form combining structure.It is light that the present invention has structure, steel using amount is economized, the advantage that anti-seismic performance is good, Wavelike steel webplate of the present invention is by the setting of corner three changeover portions, the smooth and easy transition of straightway and arc section can be realized, solve the problem of stress concentration of corner, especially pressure-bearing position adopts the steel concrete combining structure with miniature strain wave, has good structural performance and economy.
Description
Technical field
The present invention relates to i beam, particularly relate to the continuous i beam of a kind of Wavelike steel webplate steel-concrete combined structure.
Background technology
Traditional i beam or steel box-girder are according to the requirement of shearing resistance flexing, and the ratio of height to thickness of web is generally at about 100:1, and trapezoidal waveform steel web is due to extremely strong shearing resistance and anti-flexural property, and its ratio of height to thickness can 300:1 greatly.The Wavelike steel webplate adopted in existing Wavelike steel webplate i beam, the waveform of its web is all made up of straightway and arc section, easily produces stress concentrate in the coupling part of straightway and arc section.Tradition i beam or steel box-girder compression flange also adopt steel plate, adopt steel work can not embody the economy of steel work in pressure zone, as adopted steel-concrete combined structure, the most compressive stress in pressure zone is born by concrete, although can economy be embodied, but concrete shrinkage and creep characteristic makes itself and steel work can not cooperative bearing, cause stresses re-distribution phenomenon.
Summary of the invention
The present invention is directed to i beam shear behavior in prior art poor, total easily produces stress and concentrates, affect the life-span of structure, simultaneously using clean steel material as compression-member, the shortcomings such as cost performance is low, especially in combining structure, concrete shrinkage and creep characteristic makes itself and steel work can not cooperative bearing, causes stresses re-distribution phenomenon.The intensity providing a kind of cross section rigidity of beam body and link is high, the waveform of web is by straightway, changeover portion, arc section three part composition, wherein changeover portion can effectively connect straightway and arc section, the problem that when solution straightway is directly connected with arc section, stress is concentrated and employing concrete combined structure are as pressure-bearing framework, load performance is good, the continuous i beam of Wavelike steel webplate steel-concrete combined structure that cost performance is high.Especially have employed the pressure-bearing frange plate with miniature strain wave, on pressure-bearing frange plate, the Wavelike steel webplate steel-concrete combined structure simply supported l beam of concreting, solves the stresses re-distribution phenomenon that concrete shrinkage and creep causes.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals:
The continuous i beam of Wavelike steel webplate steel-concrete combined structure, comprise one piece of Wavelike steel webplate, top flange steel plate and concrete combined structure, bottom flange steel plate, described Wavelike steel webplate is arranged between top flange steel plate and bottom flange steel plate, top flange steel plate and Wavelike steel webplate are by being welded to connect, Wavelike steel webplate and bottom flange steel plate are by being welded to connect, top flange steel plate, bottom flange steel surface roughness is 70-350 μm, being connected by one or more in link or steel strand cable between single girder construction, form beam structure, the frange plate of bearing area and Combined concrete form combining structure.The frange plate of bearing area is top flange steel plate or bottom flange steel plate, and the frange plate of bearing area mainly top flange steel plate in common beam is then bottom flange steel plate in semi girder.
As preferably, described Wavelike steel webplate is the continuous ladder twists and turns steel plate of band changeover portion and circular arc-shaped corner, and changeover portion is between straightway and circular arc-shaped corner, and circular arc-shaped corner radius is r, and the radius of changeover portion is R, R is gradual change radius, and R is ∞-r.Changeover portion is connected with straightway one end, and radius is R is that trend is infinitely great; Changeover portion is connected with circular arc-shaped corner one end, and radius is R is that trend equals r, and therefore, by straightway to circular arc-shaped corner, the radius R of changeover portion equals r for being decreased to gradually from infinity, thus makes the smooth transition more of straightway and circular arc-shaped corner, reduces stress concentrated.The waveform of web is by straightway, changeover portion, arc section three part composition, wherein changeover portion can effectively connect straightway and circular arc-shaped corner, solve the straightway problem that stress is concentrated when being directly connected with arc section, be suitable for industrial mass manufacture, mould and manufacturing cost lower.
As preferably, described Wavelike steel webplate is LAB along the point of contact wire length in wave height direction, and the point of contact wire length along wavelength direction is LBC, LAB >=LBC.Wavelike steel webplate to equal or slightly larger than the point of contact wire length along wavelength direction along the point of contact wire length in wave height direction, namely the design of LAB >=LBC makes the cost performance that the shear strength of corrugated sheet steel and steel using amount reach good, if wavelength direction is long, namely LBC >=LAB then shear behavior obviously reduce, and wavelength direction is too short, then steel using amount obviously increases.Therefore, adopt the design of LAB >=LBC, in guarantee shear strength, can either can reduce rolled steel dosage again as far as possible.
As preferably, described top flange steel plate is with the miniature strain wave of evagination crest.Traditional corrugated sheet steel is longitudinally substantially without rigidity, and the frange plate longitudinal direction with miniature strain wave has rigidity, energy pressure-bearing, and the longitudinal rigidity of its miniature strain wave part weakens part obtains reinforcement because of the cross section of concrete evagination.
As preferably, the wave height of described miniature strain wave be the 3-20 of top flange steel plate thickness doubly, the wave crest length of concave portion is less than 300mm, and the distance between crest and crest is for being greater than 1000mm.The wave height of miniature strain wave adopts the 3-20 of frange plate thickness doubly, the anti-pressure ability weakened because of the existence of miniature strain wave during the steel plate pressurized of the edge of a wing can be made, the concrete section that the 3-20 times of frange plate thickness increased by evagination is increased makes up, make frange plate can accept the longitudinal contraction of concrete and creep, with concrete cooperative bearing, again longitudinal contraction with creep in process and keep overall construction intensity after process.
Because concreting on pressure-bearing frange plate, there is short contractive and long term creep strain in concrete, contraction state about above-mentioned change all makes concrete occur total amount one thousandth, and contraction can not be worked in coordination with the straight frange plate of the tradition of Combined concrete, thus cause the actual forced status of combining structure and desirable stress to there is notable difference, the frange plate can not working in coordination with contraction takes the lead in assume responsibility for compressive stress, causes stresses re-distribution phenomenon in combining structure.This patent adopts the way straight frange plate being arranged miniature strain wave, makes its longitudinal contraction that can accept concrete and creeps, and holding structure intensity in longitudinal contraction with process of creeping and after process, solves the above-mentioned bottleneck problem of combining structure at one stroke again.
As preferably, described link is for being welded to connect.
As preferably, being welded to connect of described link adopts first freely-supported, rear continuous print connected mode.The connected mode of simple-supported thencontinuous is on the one hand limit because of factors such as workshop manufactures, transport, hoist length, on the other hand, this method be conducive to each across between camber or Shi Hanzhang are set.
As preferably, the thickness of described top flange steel plate is greater than or less than the thickness of bottom flange steel plate.Because flexing need be considered in pressure zone, flexing then need not be considered in tensile region, so the steel using amount of traditional tensile region and pressure zone or section area identical, make tensile region part there is function to have more than needed phenomenon, it is not science and uneconomic, pressure zone steel using amount suitably increases, and is conducive to the pressurized of component, the function of tension part gives full play to, reach higher cost performance.When the thickness of top flange steel plate is greater than the thickness of bottom flange steel plate, it is common i beam, and top flange steel plate bears pressure; When the thickness of top flange steel plate is less than the thickness of bottom flange steel plate, it is semi girder, and bottom flange steel plate bears pressure.
As preferably, described top flange steel plate, bottom flange steel plate are arch along Wavelike steel webplate wavelength direction.Top flange steel plate, bottom flange steel plate are arch, are conducive to member stress, offset the downwarp of carrying situation lower member, improve the overall construction intensity of i beam.
As preferably, in described top flange steel plate and bottom flange steel plate, pressurized zone concreting.
The present invention is owing to have employed above technical scheme, there is significant technique effect: the present invention adopts corrugated sheet steel as the web of i beam, there is structure light, steel using amount is economized, the advantage that anti-seismic performance is good, the cross section rigidity of beam body and the intensity of link high, the waveform of web is by straightway, changeover portion, arc section three part composition, wherein changeover portion can effectively connect straightway and arc section, the problem that when solution straightway is directly connected with arc section, stress is concentrated and employing concrete combined structure are as pressure-bearing framework, load performance is good, and cost performance is high.Especially pressure-bearing position adopts the steel concrete combining structure with miniature strain wave, solves the problem of the stresses re-distribution in combining structure, makes combining structure Steel concrete cooperative bearing, have good structural performance and economy.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Fig. 2 is the middle waveform steel web structure schematic diagram of Fig. 1.
Fig. 3 is the I portion enlarged drawing of Fig. 2.
Fig. 4 is the left view of Fig. 1.
Fig. 5 is the structural representation being with miniature strain wave.
Fig. 6 is the front view of Fig. 5.
The toponym that in above accompanying drawing, each number designation refers to is as follows: wherein 1-top flange steel plate, 2-Wavelike steel webplate, 3-bottom flange steel plate, 7-concrete, 11-miniature strain wave, 21-circular arc-shaped corner, 22-changeover portion, 23-straightway.
Detailed description of the invention
The present invention is described in further detail with embodiment below in conjunction with accompanying drawing 1 to Fig. 6:
Embodiment 1
The continuous i beam of Wavelike steel webplate steel-concrete combined structure, as shown in Figures 1 to 6, comprise one piece of Wavelike steel webplate 2, top flange steel plate 1 and concrete combined structure 7, bottom flange steel plate 3, described Wavelike steel webplate 2 is arranged between top flange steel plate 1 and bottom flange steel plate 3, top flange steel plate 1 and Wavelike steel webplate 2 are by being welded to connect, Wavelike steel webplate 2 and bottom flange steel plate 3 are by being welded to connect, top flange steel plate 1, bottom flange steel plate 3 surface roughness is 70-350 μm, connected or being connected by link and steel strand cable by a kind of in link or steel strand cable between single girder construction, form beam structure, the frange plate of bearing area and Combined concrete form combining structure.When common beam, the frange plate of bearing area is top flange steel plate 1, concreting 7 on top flange steel plate 1.Top flange steel plate 1, bottom flange steel plate 3 surface roughness are 250 μm.High roughness obviously can increase the adhesive power of coating.
Wavelike steel webplate 2 is the continuous ladder twists and turns steel plate of band changeover portion 22 and circular arc-shaped corner 21, and changeover portion 22 is between straightway 23 and circular arc-shaped corner 21, and circular arc-shaped corner 21 radius is r, and the radius of changeover portion 22 is R, R is gradual change radius, and R is ∞-r.Changeover portion 22 is connected with straightway 23 one end, and radius is R is that trend is infinitely great; Changeover portion 22 is connected with circular arc-shaped corner 21 one end, and radius is R is that trend equals r, therefore, by straightway 23 to circular arc-shaped corner 21, the radius R of changeover portion 22 equals r for being decreased to gradually from infinity, thus makes straightway 23 and circular arc-shaped corner 21 smooth transition more, reduces stress and concentrates.The waveform of web is by straightway, changeover portion, arc section three part composition, wherein changeover portion can effectively connect straightway and circular arc-shaped corner, solve the straightway problem that stress is concentrated when being directly connected with arc section, be suitable for industrial mass manufacture, mould and manufacturing cost lower.
Wavelike steel webplate 2 is LAB along the point of contact wire length in wave height direction, and the point of contact wire length along wavelength direction is LBC, LAB >=LBC.Wavelike steel webplate 2 to equal or slightly larger than the point of contact wire length along wavelength direction along the point of contact wire length in wave height direction, namely the design of LAB >=LBC makes the cost performance that the shear strength of corrugated sheet steel and steel using amount reach good, if wavelength direction is long, namely LBC >=LAB then shear behavior obviously reduce, and wavelength direction is too short, then steel using amount obviously increases.Therefore, adopt the design of LAB >=LBC, in guarantee shear strength, can either can reduce rolled steel dosage again as far as possible.
Top flange steel plate is with the miniature strain wave 11 of evagination crest.The wave height of miniature strain wave 11 is 3-20 times of top flange steel plate thickness, and the wave crest length of concave portion is 250mm, and the distance between crest and crest is 1200mm.The wave height of miniature strain wave adopts 10 times of frange plate thickness, the anti-pressure ability weakened because of the existence of miniature strain wave during the steel plate pressurized of the edge of a wing can be made, the concrete section that the 10 times of frange plate thickness increased by evagination are increased makes up, the longitudinal contraction making frange plate can accept concrete with creep, again in longitudinal contraction with process of creeping and keep overall construction intensity after process.
Common straight flat frange plate does not longitudinally have rigidity, and when concrete shrinks with when creeping, steel plate longitudinally shrinks hardly and creeps.Like this, concrete just can be caused shrinking with when creeping, and there is the phenomenon that shells in straight frange plate and concrete, particularly seriously causes the stresses re-distribution problem that steel work takes the lead in stressed, affect the stability of structure, structural strength is reduced.
Link is for being welded to connect, and being welded to connect of link adopts first freely-supported, rear continuous print connected mode, and institute forms continuous print structure, can effectively prevent overload car and the beam body greatly under load action or under geological process to drop phenomenon.
The thickness of top flange steel plate 1 is greater than or less than the thickness of bottom flange steel plate 3.Because flexing need be considered in pressure zone, flexing then need not be considered in tensile region, so the steel using amount of traditional tensile region and pressure zone or section area identical, make tensile region part there is function to have more than needed phenomenon, it is not science and uneconomic, pressure zone steel using amount suitably increases, and is conducive to the pressurized of component, the function of tension part gives full play to, reach higher cost performance.When the thickness of top flange steel plate 1 is greater than the thickness of bottom flange steel plate 3, it is common i beam, and top flange steel plate 1 bears pressure; When the thickness of top flange steel plate 1 is less than the thickness of bottom flange steel plate 3, it is semi girder, and bottom flange steel plate 2 bears pressure.
Top flange steel plate 1, bottom flange steel plate 3 are arch along Wavelike steel webplate 2 wavelength direction.Top flange steel plate 1, bottom flange steel plate 3 are arch, are conducive to member stress, offset the downwarp of carrying situation lower member, improve the overall construction intensity of i beam.
In top flange steel plate 1 and bottom flange steel plate 2, pressurized zone concreting.
Embodiment 2
As shown in Figures 1 to 6, the difference of the present embodiment and embodiment 1 is:
Top flange steel plate is with the miniature strain wave 11 of evagination crest.The wave height of miniature strain wave 11 is 3-20 times of top flange steel plate thickness, and the wave crest length of concave portion is 200mm, and the distance between crest and crest is 1500mm.The wave height of miniature strain wave adopts 15 times of frange plate thickness, the anti-pressure ability weakened because of the existence of miniature strain wave during the steel plate pressurized of the edge of a wing can be made, the concrete section that the 15 times of frange plate thickness increased by evagination are increased makes up, the longitudinal contraction making frange plate can accept concrete with creep, again in longitudinal contraction with process of creeping and keep overall construction intensity after process.
In a word, the foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to the covering scope of patent of the present invention.
Claims (1)
1. the continuous i beam of Wavelike steel webplate steel-concrete combined structure, comprise one piece of Wavelike steel webplate (2), top flange steel plate (1) and concrete combined structure (7), bottom flange steel plate (3), described Wavelike steel webplate (2) is arranged between top flange steel plate (1) and bottom flange steel plate (3), top flange steel plate (1) and Wavelike steel webplate (2) are by being welded to connect, Wavelike steel webplate (2) and bottom flange steel plate (3) are by being welded to connect, top flange steel plate (1), bottom flange steel plate (3) surface roughness is 70-350 μm, connected or being connected by link and steel strand cable by a kind of in link or steel strand cable between single girder construction, form beam structure, the frange plate of bearing area and Combined concrete form combining structure, described Wavelike steel webplate (2) is the continuous ladder twists and turns steel plate of band changeover portion (22) and circular arc-shaped corner (21), changeover portion (22) is positioned between straightway (23) and circular arc-shaped corner (21), circular arc-shaped corner (21) radius is r, the radius of changeover portion (22) is R, R is gradual change radius, R is ∞-r, described Wavelike steel webplate (2) is LAB along the point of contact wire length in wave height direction, point of contact wire length along wavelength direction is LBC, LAB >=LBC, it is characterized in that: described top flange steel plate (1) is with the miniature strain wave (11) of evagination crest, described top flange steel plate (1), bottom flange steel plate (3) is arch along Wavelike steel webplate (2) wavelength direction, the wave height of described miniature strain wave (11) is 3-20 times of top flange steel plate thickness, the wave crest length of concave portion is less than 300mm, distance between crest and crest is for being greater than 1000mm, described link is for being welded to connect, being welded to connect of described link adopts first freely-supported, rear continuous print connected mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310308354.8A CN103422617B (en) | 2013-07-18 | 2013-07-18 | The continuous i beam of Wavelike steel webplate steel-concrete combined structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310308354.8A CN103422617B (en) | 2013-07-18 | 2013-07-18 | The continuous i beam of Wavelike steel webplate steel-concrete combined structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103422617A CN103422617A (en) | 2013-12-04 |
| CN103422617B true CN103422617B (en) | 2016-04-20 |
Family
ID=49647960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310308354.8A Active CN103422617B (en) | 2013-07-18 | 2013-07-18 | The continuous i beam of Wavelike steel webplate steel-concrete combined structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103422617B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103882805B (en) * | 2014-04-15 | 2017-02-15 | 广州市设计院 | Pedestrian overcrossing with pulling and crushing resistant support structure |
| CN104032667B (en) * | 2014-06-03 | 2016-01-13 | 南京工业大学 | A kind ofly adopt that composite material is core, steel plate is the sandwich of covering |
| CN104032893B (en) * | 2014-06-26 | 2016-03-23 | 南京工业大学 | A kind of integrated FRP fold-line-shaped plated construction for compound beam |
| CN104389262B (en) * | 2014-11-13 | 2016-05-18 | 北京东方园林股份有限公司 | A kind of Novel wooden plank road structure based on ecoscape |
| CN105926424B (en) * | 2016-06-08 | 2018-03-16 | 卢国林 | Shell connects flitch structural bridge |
| RU2706982C2 (en) * | 2018-03-14 | 2019-11-21 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Казанский государственный архитектурно-строительный университет" (КазГАСУ) | Composite reinforced concrete beam |
| CN110924589A (en) * | 2019-12-02 | 2020-03-27 | 应急管理部天津消防研究所 | Corrugated web steel-wood composite beam and assembly joint |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003268719A (en) * | 2002-03-13 | 2003-09-25 | Ps Mitsubishi Construction Co Ltd | Steel-concrete composite beam and its installation method |
| CN1746451A (en) * | 2004-09-07 | 2006-03-15 | 东洋综合建业株式会社 | Pre-stressed concrete mixed beam structure with corrugated steel web |
| CN101220697A (en) * | 2008-01-24 | 2008-07-16 | 同济大学 | Double-ripple ventral shield steel case built-up beam |
| CN101225688A (en) * | 2008-01-24 | 2008-07-23 | 同济大学 | Corrugated sternum H-shaped steel composite beam |
| CN101550675A (en) * | 2009-04-22 | 2009-10-07 | 东南大学 | Corrugated steel ventral shield preflex composite beam and construction method thereof |
| CN201474165U (en) * | 2009-08-13 | 2010-05-19 | 同济大学 | Combined corrugated web girder |
| CN201474164U (en) * | 2009-08-13 | 2010-05-19 | 同济大学 | Combined corrugated web box girder |
| CN101761184A (en) * | 2010-01-20 | 2010-06-30 | 孙天明 | Steel column and beam structure with corrugated steel web and special welding device thereof |
| CN201605522U (en) * | 2009-10-20 | 2010-10-13 | 孙天明 | Corrugated steel web reinforced concrete composite structure |
| CN102505946A (en) * | 2011-11-21 | 2012-06-20 | 中国矿业大学(北京) | Closed metal support structure and construction method thereof |
-
2013
- 2013-07-18 CN CN201310308354.8A patent/CN103422617B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003268719A (en) * | 2002-03-13 | 2003-09-25 | Ps Mitsubishi Construction Co Ltd | Steel-concrete composite beam and its installation method |
| CN1746451A (en) * | 2004-09-07 | 2006-03-15 | 东洋综合建业株式会社 | Pre-stressed concrete mixed beam structure with corrugated steel web |
| CN101220697A (en) * | 2008-01-24 | 2008-07-16 | 同济大学 | Double-ripple ventral shield steel case built-up beam |
| CN101225688A (en) * | 2008-01-24 | 2008-07-23 | 同济大学 | Corrugated sternum H-shaped steel composite beam |
| CN101550675A (en) * | 2009-04-22 | 2009-10-07 | 东南大学 | Corrugated steel ventral shield preflex composite beam and construction method thereof |
| CN201474165U (en) * | 2009-08-13 | 2010-05-19 | 同济大学 | Combined corrugated web girder |
| CN201474164U (en) * | 2009-08-13 | 2010-05-19 | 同济大学 | Combined corrugated web box girder |
| CN201605522U (en) * | 2009-10-20 | 2010-10-13 | 孙天明 | Corrugated steel web reinforced concrete composite structure |
| CN101761184A (en) * | 2010-01-20 | 2010-06-30 | 孙天明 | Steel column and beam structure with corrugated steel web and special welding device thereof |
| CN102505946A (en) * | 2011-11-21 | 2012-06-20 | 中国矿业大学(北京) | Closed metal support structure and construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103422617A (en) | 2013-12-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103422617B (en) | The continuous i beam of Wavelike steel webplate steel-concrete combined structure | |
| CN103422616B (en) | Wavelike steel webplate steel-concrete combined structure continuous box girder | |
| CN103526689B (en) | Wavelike steel webplate steel-concrete combined structure simple supported box beam | |
| CN203403604U (en) | Simply supported flanged beam with corrugated steel web steel reinforced concrete composite structure | |
| CN202208887U (en) | U-shaped rib | |
| CN201809900U (en) | FRP (fiber reinforce plastic)-bamboo-concrete composite beam | |
| CN203188112U (en) | Steel-concrete rigid-connection combined beam | |
| CN201649303U (en) | Shear connector | |
| CN103422618B (en) | Wavelike steel webplate steel-concrete combined structure simply supported l beam | |
| CN103422421B (en) | Wavelike steel webplate steel work simple supported box beam | |
| CN103437496B (en) | Punching block steel concrete integral type combined beam structure | |
| CN203487700U (en) | Steel mixed composite structural continuous I beam of corrugated steel web | |
| CN205116556U (en) | Novel concrete combination beam | |
| CN202706265U (en) | Improved type double-layer steel plate concrete shear wall | |
| CN202542697U (en) | Truss type flexible leg of portal crane | |
| CN202401384U (en) | Ballasting structure of steel-truss cable-stayed bridge | |
| CN103422613B (en) | Wavelike steel webplate steel construction simply supported l beam | |
| CN103422614B (en) | Wavelike steel webplate steel construction continuous box girder | |
| CN112176850B (en) | Steel-UHPC combined structure shear connector and manufacturing and mounting method thereof | |
| CN103422611B (en) | The continuous I-beam of Wavelike steel webplate steel construction | |
| CN203403596U (en) | Continuous flanged beam with corrugated steel web steel structure | |
| CN203403597U (en) | Simply supported flanged beam with corrugated steel web steel structure | |
| CN103422619B (en) | Combining structure microwave shrinkage type connection structure and construction technology | |
| CN210315222U (en) | Shear connector for corrugated steel web-concrete combined box girder bridge structure | |
| CN202116972U (en) | Shear connector of FRP concrete composite beam |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: HANGZHOU FENGSHI COLOR PLATE CO., LTD. Free format text: FORMER OWNER: HANGZHOU BOSHU CIVIL ENGINEERING TECHNOLOGY CO., LTD. Effective date: 20141113 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 311215 HANGZHOU, ZHEJIANG PROVINCE TO: 311200 HANGZHOU, ZHEJIANG PROVINCE |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20141113 Address after: 311200 Nanyang Economic Development Zone, Xiaoshan District, Zhejiang, Hangzhou Applicant after: Hangzhou Feng Shi color steel Co., Ltd Address before: Hangzhou City, Zhejiang province 311215 Xiaoshan economic and Technological Development Zone, North Building 2 room 1711 Ning'an Applicant before: Hangzhou Boshu Civil Engineering Technology Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG CTB CORRUGATED STEEL WEB CO., LTD. Free format text: FORMER OWNER: HANGZHOU FENGSHI COLOR PLATE CO., LTD. Effective date: 20150227 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 311200 HANGZHOU, ZHEJIANG PROVINCE TO: 314422 HANGZHOU, ZHEJIANG PROVINCE |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20150227 Address after: 314422, No. 168-2, village, town, Hangzhou, Xiaoshan District, Zhejiang Applicant after: Zhejiang CTB Corrugated Steel Web Co., Ltd. Address before: 311200 Nanyang Economic Development Zone, Xiaoshan District, Zhejiang, Hangzhou Applicant before: Hangzhou Feng Shi color steel Co., Ltd |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |