CN1242458A - Steel pipe high strength concrete column reinforcing joint, and method for mfg. same - Google Patents
Steel pipe high strength concrete column reinforcing joint, and method for mfg. same Download PDFInfo
- Publication number
- CN1242458A CN1242458A CN 99116170 CN99116170A CN1242458A CN 1242458 A CN1242458 A CN 1242458A CN 99116170 CN99116170 CN 99116170 CN 99116170 A CN99116170 A CN 99116170A CN 1242458 A CN1242458 A CN 1242458A
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- ring
- section
- node
- shaft section
- 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.)
- Granted
Links
Images
Landscapes
- Joining Of Building Structures In Genera (AREA)
Abstract
The present invention relates to a steel-pipe high-strength concrete column joint and its manufacturing method. Said steel-pipe high-strength concrete column joint is formed from two portions of column shaft section and joint section, and its manufacturing method is characterized by that said joint section is made up by using joint section steel pipe, pull ring, press ring and through plate web through a certain welding process, and the column shaft section is made up by using column shaft section steel pipe and ring flange through a certain welding process. When it is installed, the end face of the pull ring and end face of the press ring are respectively abutted against the end faces of the column shaft section oppositely, then the joint section and column shaft section are connected together by means of high strength screw bolts.
Description
The present invention is a kind of steel pipe high strength concrete column reinforcing joint and manufacture method thereof that beam column connects that be used for, and belongs to the building method technical field, particularly the manufacturing technology of encased structures.
Concrete filled steel tube is a kind of novel combining structure material with characteristics such as bearing capacity height, plasticity and good toughness, saving cost, convenient constructions, uses for many years in engineerings such as industry and civilian construction, has obtained technical economic benefit preferably.High strength concrete filled steel tube then be the steel pipe that utilizes steel plate to roll to form with in the above high-strength concrete of C60 filled out unite cooperative member, its collapse state is similar to the steel pipe ordinary concrete with working mechanism, but its intensity obtains bigger raising, the elastic working scope increases, can satisfy the ductility requirement of structure fully in the earthquake zone, be a kind of cost-effective form of structure that is applied in the highrise building.According to China's existence conditions, when in highrise building, adopting steel core concrete column, often need link to each other, and make and be rigidly connected with the cast-in-situ steel reinforced concrete beam, with composition rigid frame system, connected mode connects by node exactly.When antidetonation district design ductility rigid frame, guarantee the bearing capacity of node area, make it not destroy too early very important, because node area is destroyed or is out of shape excessively, beam, post member just no longer can form the rigid-framed structure of lateral resisting.The construction of steel tube concrete beam and column node, directly have influence on the difficulty or ease and the programming of construction especially, thereby become key link in the encased structures design, but the joint structure complexity of existing steel core concrete column, power transmission is unclear, domestic also do not have one to overlap the complete theory of computation so far, and the evaluation that people make pattern to the steel core concrete column node mainly obtains by analysis of experiments.China's existing " encased structures design and construction rules " only provides the manufacturing pattern of several steel core concrete column nodes: the single beam joint that (1) beam-ends part is widened, (2) are twin beams node, (3) enforced steel loop formula node continuously, do not elaborate the application characteristic and the pluses and minuses of various manufacturing patterns, and do not provide clear and definite node manufacture method.Wherein enforced steel loop formula node is one of " encased structures design and construction rules " joint form of being recommended, up to now, such node is used morely in actual engineering, and its adopts lower wing plate welding on enforced steel loop and the girder steel or realizes with structural form that the vertical muscle of concrete beam welds.Enforced steel loop formula node good integrity, power transmission are clear and definite, safe and reliable, but enforced loop plane and floor all need be welded into integral body with steel pipe walls at the construction field (site), and the field Welding workload is very big, and it is very not convenient construct, and welding quality is difficult for assurance.
Purpose of the present invention is exactly very big in order to overcome and solve the field Welding workload that existing enforced steel loop formula node exists, it is very not convenient to construct, shortcoming and problem that welding quality be difficult for to guarantee, research and design a kind of stressed rationally, good reliability, easy construction, the welding quality steel pipe high strength concrete column reinforcing joint of control easily.
Another object of the present invention is big in order to overcome and solve the field Welding workload that the manufacture method of existing enforced steel loop formula node exists, it is very not convenient to construct, welding quality is difficult for the shortcoming and the problem of assurance, and a kind of easy construction, the welding quality manufacture method of the steel pipe high strength concrete column reinforcing joint of control easily is provided.
The present invention realizes by following structure and method and technology scheme: this steel pipe high strength concrete column reinforcing joint is made up of shaft section and node section two parts, wherein the node section comprises node section steel pipe, draw ring, pressure ring and punching web, and the shaft section comprises shaft section steel pipe and flange ring; Its mutual alignment and annexation are: the draw ring of node section and pressure ring are welded on the upper and lower end face of node section steel pipe respectively, the punching web welds together by the center of node section steel pipe and with node section steel pipe, the flange ring of shaft section is welded on the end face of shaft section steel pipe, during connection with the draw ring end face of node section and pressure ring end face respectively with relative applying of flange ring end face of shaft section, and node section and shaft section are coupled together by high-strength bolt.
The manufacture method of this steel pipe high strength concrete column reinforcing joint is: 1, roll two segment length with steel plate and be respectively h
1And h
2Steel pipe, steel pipe is preferably spiral pipe crimping, wherein h
1Be (node section concrete beam deck-molding h
b-two protective layer thickness up and down) and h
2Be (story height h-h
1); Make draw ring, pressure ring and flange ring by designing requirement with steel plate, and flange ring and draw ring, pressure ring are stacked the auger shell keyhole; Make the punching web by designing requirement with steel plate; 2, the punching web is welded by steel pipe and with steel pipe; Draw ring, pressure ring and steel pipe, punching web are welded into the node section; Flange ring and steel pipe are welded into the shaft section; When 3, constructing node section and shaft section are coupled together with high-strength bolt.
The present invention compared with prior art has following advantage and beneficial effect: the shaft section and the node section of (1) this steel pipe high strength concrete column reinforcing joint can be prefabricated in the factory, welding job between the node each several part steel member all can be finished in factory, only need carry out high-strength bolt installation and beam-ends reinforcing bar welding two procedures at the construction field (site), so not only guarantee weldquality easily, and improved site operation speed greatly; (2) this node not only can carry various static(al) effects that may unfavorable combined loads, and can carry seismic load repeatedly, satisfies strong column and weak beam, shockproof requirements that node is stronger; (3) shearing of framework beam-ends and end moment of flexure can pass on the crossing rod member (beam, post) by node, simultaneously styletable shearing and moment of flexure also can pass to crossing rod member by node, can make the load that transmits from beam-ends less to the influence of steel pipe walls stress state like this; (4) top of punching web, bottom all respectively are lined with ring flat-plate, when web bears the beam-ends shearing, pass to the local pressure of steel pipe walls bottom web, can be diffused into bigger zone by this two-layer ring flat-plate, so steel pipe walls are not easy to take place secondary buckling; As a same reason, web is curved when moving, also can reduce much the influence of steel pipe walls part; (5) when the caliber of steel pipe column is big, the punching member can not impact building of inner concrete of pipe; (6) rotational deformation is coordinated: node is consistent with the rotational deformation of the rod end that intersects at this node.
Below in conjunction with Figure of description steel pipe high strength concrete column reinforcing joint of the present invention and manufacture method thereof are described as follows: Fig. 1 is the stereogram of " ten " font steel pipe high strength concrete column reinforcing joint; Fig. 2 is the stereogram of " one " font steel pipe high strength concrete column reinforcing joint; Fig. 3 is the structural representation of steel pipe high strength concrete column reinforcing joint; Fig. 4 is the structural representation of flange ring; Fig. 5 is the structural representation of " ten " font draw ring, pressure ring; Fig. 6 is the structural representation of " one " font draw ring, pressure ring.Among each figure: 1 and 7 is that shaft section steel pipe, 2 and 8 is that flange ring, 3 and 9 is that draw ring, 4 and 11 is that punching web, 5 and 12 is that pressure ring, 6 and 10 is node section steel pipe.
Embodiments of the invention 1 are as follows: roll two segment length with steel plate and be respectively h by shown in Figure 1
1(node section concrete beam deck-molding h
b-two protective layer thickness up and down) and h
2(story height h-h
1) node section steel pipe 6 and shaft section steel pipe 1; By Fig. 4 and flange ring 2, draw ring 3, the pressure ring 5 on a block plate, left shown in Figure 5, and flange ring 2 stacked the bolt hole that gets out as shown in Figure 4 and Figure 5 with draw ring 3, pressure ring 5 respectively; Make " ten " font punching web 4 by shown in Figure 1 with steel plate; Cut node section steel pipe 6 open four limits as shown in Figure 1; With node section steel pipe 6 and 4 welding of " ten " font punching web; Draw ring 3, pressure ring 5 are welded the configuration node sections with node section steel pipe 6 and " ten " font punching web 4 respectively; Flange ring 2 and 1 welding of shaft section steel pipe are constituted the shaft section; During construction node section and shaft section are coupled together with high-strength bolt.
Embodiments of the invention 2 are as follows: make two segment length with the helical coil pipe and be respectively h by shown in Figure 2
1(node section concrete beam deck-molding h
b-two protective layer thickness up and down) and h
2(story height h-h
1) node section steel pipe 10 and shaft section steel pipe 7; By Fig. 6 and draw ring 9, pressure ring 12 and the flange ring 8 on a block plate, left shown in Figure 4, and flange ring 8 stacked with draw ring 9, pressure ring 12 respectively get out as Fig. 4 and bolt hole shown in Figure 6; Make " one " font punching web 11 by shown in Figure 2 with steel plate; Cut node section steel pipe 10 open both sides as shown in Figure 2; With node section steel pipe 10 and 11 welding of " one " font punching web; Draw ring 9, pressure ring 12 are welded the configuration node sections with node section steel pipe 10 and " one " font punching web 11 respectively; Flange ring 8 and 7 welding of shaft section steel pipe are constituted the shaft section; During construction node section and shaft section are coupled together with high-strength bolt.
Claims (4)
1, a kind of steel pipe high strength concrete column reinforcing joint is characterized in that: it is made up of shaft section and node section two parts, and wherein the node section comprises node section steel pipe, draw ring, pressure ring and punching web, and the shaft section comprises shaft section steel pipe and flange ring; Its mutual alignment and annexation are: the draw ring of node section and pressure ring are welded on the upper and lower end face of node section steel pipe respectively, the punching web welds together by the center of node section steel pipe and with node section steel pipe, the flange ring of shaft section is welded on the end face of shaft section steel pipe, during connection with the draw ring end face of node section and pressure ring end face respectively with relative applying of flange ring end face of shaft section, and node section and shaft section are coupled together by high-strength bolt.
2, steel pipe high strength concrete column reinforcing joint according to claim 1 is characterized in that described steel pipe is the spiral pipe crimping.
3, a kind of manufacture method of steel pipe high strength concrete column reinforcing joint is characterized in that: 1, roll two segment length with steel plate and be respectively h
1And h
2Steel pipe, h wherein
1Be (node section concrete beam deck-molding h
b-two protective layer thickness up and down) and h
2Be (story height h-h
1); Make draw ring, pressure ring and flange ring by designing requirement with steel plate, and flange ring and draw ring, pressure ring are stacked the auger shell keyhole; Make the punching web by designing requirement with steel plate; 2, the punching web is welded by steel pipe and with steel pipe; Draw ring, pressure ring and steel pipe, punching web are welded into the node section; Flange ring and steel pipe are welded into the shaft section; When 3, constructing node section and shaft section are coupled together with high-strength bolt.
4, the manufacture method of steel pipe high strength concrete column reinforcing joint according to claim 3 is characterized in that described steel pipe is the spiral pipe crimping.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 99116170 CN1095018C (en) | 1999-05-06 | 1999-05-06 | Steel pipe high strength concrete column reinforcing joint, and method for mfg. same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 99116170 CN1095018C (en) | 1999-05-06 | 1999-05-06 | Steel pipe high strength concrete column reinforcing joint, and method for mfg. same |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1242458A true CN1242458A (en) | 2000-01-26 |
CN1095018C CN1095018C (en) | 2002-11-27 |
Family
ID=5279011
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 99116170 Expired - Fee Related CN1095018C (en) | 1999-05-06 | 1999-05-06 | Steel pipe high strength concrete column reinforcing joint, and method for mfg. same |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN1095018C (en) |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101974942A (en) * | 2010-12-02 | 2011-02-16 | 北京建工集团有限责任公司 | Steel sleeve beam-column nodes and construction method thereof |
CN102312486A (en) * | 2011-07-13 | 2012-01-11 | 宝钢钢构有限公司 | Large cast steel node and application in superhigh building structure |
CN102434001A (en) * | 2011-12-16 | 2012-05-02 | 武汉建工股份有限公司 | Construction method of piercing connection joint between steel beam/steel pipe concrete column and reinforced concrete beam |
CN102704575A (en) * | 2012-05-21 | 2012-10-03 | 天津大学 | Node structure of precast concrete tubular column steel rib concrete beam and construction method of node structure |
CN102704574A (en) * | 2012-05-21 | 2012-10-03 | 天津大学 | Node structure of precast concrete tubular column steel beam and construction method of node structure |
CN102733494A (en) * | 2012-07-13 | 2012-10-17 | 安徽富煌钢构股份有限公司 | Field connection node for pipe truss |
CN103015537A (en) * | 2012-12-26 | 2013-04-03 | 北京工业大学 | Beam-column joint connecting device of assembled steel structure system |
CN103334499A (en) * | 2013-07-08 | 2013-10-02 | 山东中通钢构建筑股份有限公司 | Beam column node connection device |
CN103343575A (en) * | 2013-06-25 | 2013-10-09 | 同济大学 | Rectangular steel pipe column-H-shaped steel beam bolted connecting structure |
CN103669866A (en) * | 2013-12-20 | 2014-03-26 | 广东省第四建筑工程公司 | Construction method of basement reinforced concrete column joint connecting structure |
CN103669593A (en) * | 2013-12-17 | 2014-03-26 | 南京工业大学 | Internal thread connection structure of steel pipe flange bolt |
CN104120791A (en) * | 2014-07-27 | 2014-10-29 | 俞东晖 | Method for constructing building through structural body jointing assemblies |
CN104264792A (en) * | 2014-09-03 | 2015-01-07 | 西安建筑科技大学 | Beam column node of layered-assembly-type steel structure |
CN104264791A (en) * | 2014-09-03 | 2015-01-07 | 西安建筑科技大学 | Novel assembled type beam column joint connecting structure |
CN105735472A (en) * | 2016-04-17 | 2016-07-06 | 北京工业大学 | Assembly type beam-column node connection device with function recovery effect |
CN105863052A (en) * | 2016-04-17 | 2016-08-17 | 北京工业大学 | Function-restorable assembly type beam column-column flange connection joint device |
CN105888060A (en) * | 2016-05-15 | 2016-08-24 | 北京工业大学 | Fabricated beam-column bolt joint connection device with cover plate and double flanges |
CN105926773A (en) * | 2016-05-15 | 2016-09-07 | 北京工业大学 | Assembly type single-flange beam column bolt joint connecting device provided with cover plates |
CN106013433A (en) * | 2016-05-25 | 2016-10-12 | 中建钢构有限公司 | Connection limiter used for transition section of concrete column and concrete-filled steel tubular column |
CN106545195A (en) * | 2017-01-18 | 2017-03-29 | 华电重工股份有限公司 | A kind of steel structure cooling tower and its connecting node |
CN107060081A (en) * | 2017-04-21 | 2017-08-18 | 福州市川普建筑产业化有限公司 | Precast prestressed concrete column system and its application method |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101063319B (en) * | 2007-03-27 | 2010-12-15 | 广东省建筑设计研究院 | Node component used for connecting steel tube concrete column with building roof beam |
CN101476348B (en) * | 2008-12-22 | 2010-12-22 | 大庆石油学院 | Steel pipe concrete segment type coat node and its construction method |
CN101591915B (en) * | 2009-06-25 | 2014-12-17 | 丁慈鑫 | Outer support system for supporting caisson structure and construction method thereof |
CN101914951B (en) * | 2010-08-31 | 2011-12-14 | 武汉长丰赛博思钢结构工程有限公司 | Method and device for reversely installing bolt of tubular member |
-
1999
- 1999-05-06 CN CN 99116170 patent/CN1095018C/en not_active Expired - Fee Related
Cited By (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101974942B (en) * | 2010-12-02 | 2012-05-30 | 北京建工集团有限责任公司 | Construction method of steel sleeve beam-column nodes |
CN101974942A (en) * | 2010-12-02 | 2011-02-16 | 北京建工集团有限责任公司 | Steel sleeve beam-column nodes and construction method thereof |
CN102312486A (en) * | 2011-07-13 | 2012-01-11 | 宝钢钢构有限公司 | Large cast steel node and application in superhigh building structure |
CN102434001A (en) * | 2011-12-16 | 2012-05-02 | 武汉建工股份有限公司 | Construction method of piercing connection joint between steel beam/steel pipe concrete column and reinforced concrete beam |
CN102704575B (en) * | 2012-05-21 | 2014-10-15 | 天津大学 | Node structure of precast concrete tubular column steel rib concrete beam and construction method of node structure |
CN102704575A (en) * | 2012-05-21 | 2012-10-03 | 天津大学 | Node structure of precast concrete tubular column steel rib concrete beam and construction method of node structure |
CN102704574A (en) * | 2012-05-21 | 2012-10-03 | 天津大学 | Node structure of precast concrete tubular column steel beam and construction method of node structure |
CN102733494A (en) * | 2012-07-13 | 2012-10-17 | 安徽富煌钢构股份有限公司 | Field connection node for pipe truss |
CN103015537A (en) * | 2012-12-26 | 2013-04-03 | 北京工业大学 | Beam-column joint connecting device of assembled steel structure system |
CN103015537B (en) * | 2012-12-26 | 2015-01-07 | 北京工业大学 | Beam-column joint connecting device of assembled steel structure system |
CN103343575A (en) * | 2013-06-25 | 2013-10-09 | 同济大学 | Rectangular steel pipe column-H-shaped steel beam bolted connecting structure |
CN103343575B (en) * | 2013-06-25 | 2016-02-17 | 同济大学 | A kind of square steel tube post-H profile steel beam bolt syndeton |
CN103334499A (en) * | 2013-07-08 | 2013-10-02 | 山东中通钢构建筑股份有限公司 | Beam column node connection device |
CN103334499B (en) * | 2013-07-08 | 2016-01-27 | 山东中通钢构建筑股份有限公司 | A kind of beam column node connection device |
CN103669593A (en) * | 2013-12-17 | 2014-03-26 | 南京工业大学 | Internal thread connection structure of steel pipe flange bolt |
CN103669593B (en) * | 2013-12-17 | 2015-12-16 | 南京工业大学 | Internal thread connection structure of steel pipe flange bolt |
CN103669866B (en) * | 2013-12-20 | 2015-08-26 | 广东省第四建筑工程公司 | The construction method of basement reinforced concrete post node connecting structure |
CN103669866A (en) * | 2013-12-20 | 2014-03-26 | 广东省第四建筑工程公司 | Construction method of basement reinforced concrete column joint connecting structure |
CN104120791A (en) * | 2014-07-27 | 2014-10-29 | 俞东晖 | Method for constructing building through structural body jointing assemblies |
CN104264791A (en) * | 2014-09-03 | 2015-01-07 | 西安建筑科技大学 | Novel assembled type beam column joint connecting structure |
CN104264792B (en) * | 2014-09-03 | 2017-03-29 | 西安建筑科技大学 | A kind of bean column node of layered assembling type steel structure |
CN104264792A (en) * | 2014-09-03 | 2015-01-07 | 西安建筑科技大学 | Beam column node of layered-assembly-type steel structure |
CN104264791B (en) * | 2014-09-03 | 2017-03-29 | 西安建筑科技大学 | A kind of assembled beam-column node connecting structure |
CN105735472A (en) * | 2016-04-17 | 2016-07-06 | 北京工业大学 | Assembly type beam-column node connection device with function recovery effect |
CN105863052A (en) * | 2016-04-17 | 2016-08-17 | 北京工业大学 | Function-restorable assembly type beam column-column flange connection joint device |
CN105735472B (en) * | 2016-04-17 | 2018-04-06 | 北京工业大学 | A kind of assembled beam-column nodal connection device for recovering function |
CN105888060A (en) * | 2016-05-15 | 2016-08-24 | 北京工业大学 | Fabricated beam-column bolt joint connection device with cover plate and double flanges |
CN105926773A (en) * | 2016-05-15 | 2016-09-07 | 北京工业大学 | Assembly type single-flange beam column bolt joint connecting device provided with cover plates |
CN105926773B (en) * | 2016-05-15 | 2018-06-01 | 北京工业大学 | A kind of assembled cover plate list flange beam column bolt joint attachment device |
CN105888060B (en) * | 2016-05-15 | 2018-11-02 | 北京工业大学 | A kind of double flange beam column bolt joint attachment devices of assembled cover plate |
CN106013433A (en) * | 2016-05-25 | 2016-10-12 | 中建钢构有限公司 | Connection limiter used for transition section of concrete column and concrete-filled steel tubular column |
CN106013433B (en) * | 2016-05-25 | 2018-06-26 | 中建钢构有限公司 | For concrete column and the connection limiter of steel core concrete column changeover portion |
CN106545195A (en) * | 2017-01-18 | 2017-03-29 | 华电重工股份有限公司 | A kind of steel structure cooling tower and its connecting node |
CN107060081A (en) * | 2017-04-21 | 2017-08-18 | 福州市川普建筑产业化有限公司 | Precast prestressed concrete column system and its application method |
Also Published As
Publication number | Publication date |
---|---|
CN1095018C (en) | 2002-11-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN1095018C (en) | Steel pipe high strength concrete column reinforcing joint, and method for mfg. same | |
CN106677336A (en) | Connecting joint structure of square concrete filled steel tubular column and I-shaped section steel beam | |
CN110173076B (en) | Structural system comprising high-seismic-resistance welding-free concrete filled steel tube column and construction method thereof | |
CN208137145U (en) | The buckling-restrained unilateral connecting node of formula beam column built from concrete | |
CN211037273U (en) | Steel joint is connected to assembled concrete structure primary and secondary roof beam | |
CN211873350U (en) | Assembled type through bolt unequal-height beam-square steel tube concrete column joint structure | |
CN106869326B (en) | The frame system and construction method that hollow steel tube concrete integral node is constituted | |
CN108316477A (en) | Band steel pipe concrete column and section steel beam interior joint connection structure and construction method | |
CN103410227A (en) | Reinforced concrete cast-in-situ frame structure | |
CN208815676U (en) | Band steel pipe concrete column and section steel beam interior joint connection structure | |
CN110725405A (en) | Steel pipe concrete column H-shaped steel beam rigid connection node structure with tie bars and construction method | |
CN208563574U (en) | The half double girder steel connection structures of perforation coupled column-perforation | |
CN112523367A (en) | Steel beam and concrete filled steel tube vertical member assembled side plate node | |
CN210086505U (en) | Detachable steel beam-steel core concrete column punching type connecting node | |
CN112502295A (en) | Removable assembled integrated configuration beam column node connecting device after earthquake | |
CN210857509U (en) | Steel-concrete beam column connecting joint with weakened sections | |
CN114150762A (en) | RCS assembly of assembled concrete column and steel beam and construction method thereof | |
CN203188379U (en) | Steel reinforced concrete beam column joint adopting steel plates with holes above and below core area | |
CN114108809A (en) | Prefabricated reinforced concrete column-steel beam cast steel node | |
CN110016967B (en) | Prefabricated part composite beam-prefabricated superposed composite column connecting plate assembly type node | |
CN111648494A (en) | Assembled both sides connection steel grid shear force wall convenient to replacement | |
CN114892797B (en) | Concrete filled steel tube structure system for modularized arrangement | |
CN112282062A (en) | Slow-bonding prestress core-penetrating bolt-end plate connecting reinforced concrete column-steel beam connecting node | |
CN110206140A (en) | The overlapped joints of rectangular steel-tube concrete column and beams of concrete | |
CN212561093U (en) | U-shaped concrete filled steel tube superposed upper bridge structure |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C06 | Publication | ||
PB01 | Publication | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |