CN102995832A - Multi-cavity steel tube concrete column with disconnected inner partition boards and stiffening ribs and manufacturing method of concrete column - Google Patents
Multi-cavity steel tube concrete column with disconnected inner partition boards and stiffening ribs and manufacturing method of concrete column Download PDFInfo
- Publication number
- CN102995832A CN102995832A CN2012105114207A CN201210511420A CN102995832A CN 102995832 A CN102995832 A CN 102995832A CN 2012105114207 A CN2012105114207 A CN 2012105114207A CN 201210511420 A CN201210511420 A CN 201210511420A CN 102995832 A CN102995832 A CN 102995832A
- Authority
- CN
- China
- Prior art keywords
- stiffening rib
- steel pipe
- internal partition
- concrete column
- polygonal
- 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
- Rod-Shaped Construction Members (AREA)
Abstract
The invention discloses a multi-cavity steel tube concrete column with disconnected inner partition boards and stiffening ribs. The multi-cavity steel tube concrete column comprises polygonal steel tubes (1), inner partition boards (2), horizontal stiffening ribs (3), vertical stiffening ribs (4), and concrete (5) which is filled in the polygonal steel tubes. According to the multi-cavity steel tube concrete column, the peripheral polygonal steel tubes are connected with one other up and down; the inner partition boards and the vertical stiffening ribs are disconnected with each other on the top surface of a foundation or on a floor; and the height of each section is 1h to 2h, wherein h is a storey height. By the design, the construction can be effectively facilitated, the work amount of welding is reduced by 10 to 40 percent, and the technical requirement on hoisting positioning is lowered, so that the construction speed is greatly enhanced, a framework structure system in a high-rise building is more rapidly formed, and the economic benefits of a project is improved. Experiments show that the rigidity and the bearing capacity of a construction member with the design are hardly reduced, and the deformability of the construction member is slightly reduced but can completely meet normative design requirements through reasonable design, so that the technical scheme provided by the invention is economical, feasible and excellent.
Description
Technical field
The present invention is a kind of internal partition, stiffening rib disconnect type Multicarity steel core concrete column and the practice, is mainly used in the energy dissipation and damping control field in the building structure.
Background technology
Society is in progress, and people's living standard is also improving constantly, and various forms of buildings emerge in an endless stream, and satisfies the different buildings of function of using and also arises at the historic moment.Especially emerging in multitude of high-rise, super highrise building, this just need to have new theory and new technology to support the construction that this class is built.Rectangular steel-tube concrete column and concrete-filled circular steel tube column are because the restriction of himself size and processing technology, can not infinitely satisfy the needs of engineering, in this context, the Multicarity encased structures also just produces thereupon, and its Multicarity steel pipe is to be joined by steel plate to be welded.
The Multicarity concrete filled steel tube is comprised of Multicarity steel pipe and concrete bi-material, because the effect of cavity inner concrete, the steel pipe walls stability of plates improves a lot, and delays or has avoided the too early generation cripling of steel pipe wallboard; Steel pipe is to the effect of contraction of its core concrete simultaneously, make concrete be in height triaxiality state, thereby concrete intensity is improved, plasticity and toughness properties improve, the combination of bi-material has remedied shortcoming separately, makes its material property obtain giving full play to.
In the huge post Compressive Performance test of Multicarity concrete filled steel tube, find also to exist the some shortcomings part in the Multicarity encased structures function admirable.Encased structures is under severe earthquake action, it is bent that local drum occurs the cavity wallboard easily, cavity wallboard depression of bearing force, it is serious crisp broken that steel plate bulges the core concrete at partial response position, and this moment, other position may also not reach surrender, the performance of material is not fully exerted, and has caused the serious waste of material, and a large amount of earthquake phenomenons have also proved this point.
In the huge post Compressive Performance test of Multicarity concrete filled steel tube, by whether the internal partition contrast test that the cross section is run through in inside being set, find that internal partition has obvious contribution to bearing capacity and the ductility that improves member.Internal partition is divided into several little cavitys with large cavity, and is stronger to the constraint that the cavity inner concrete forms, thereby improved concrete anti-pressure ability and ductility; The diagonal member effect of internal partition is obvious simultaneously, and is very strong to the restriction ability of chamber outer wall plate, thereby improved bearing capacity and the ductility of member.By vertical stiffening rib and internal partition disconnect type contrast test are set, the impact of finding whether to disconnect initial stiffness on test specimen, bearing capacity is not obvious, only the deformability after surpassing the elastic-plastic displacement angle several times of regulation and stipulation when distortion has certain decline, therefore, the design of adopting vertical stiffening rib and interior partition to disconnect is to satisfy code requirement fully, make simultaneously the welding engineering amount reduce 10% ~ 40%, the lifting positioning difficulty reduces, Effective Raise speed of application and economic benefit of engineering.
Summary of the invention
Technical problem to be solved by this invention is: improve Multicarity encased structures bearing capacity and anti-seismic performance, the reduction of stiffness of structural member, bearing capacity and the ductility that delays or avoid causing owing to steel pipe wallboard cripling, give full play to the performance of material, simultaneously constructability.In order to address this problem, the present invention proposes a kind of internal partition, stiffening rib disconnect type Multicarity steel core concrete column and the practice.
The technical solution used in the present invention is:
This internal partition, stiffening rib disconnect type Multicarity steel core concrete column, it comprises polygonal steel pipe 1, internal partition 2, horizontal stiffening rib 3, vertical stiffening rib 4, is filled in the concrete 5 in the polygonal steel pipe; The steel pipe of highrise building steel core concrete column partly is the segmentation factory process, and Site Welding is stitched together, and polygonal steel pipe 1 is continuously vertical among the present invention, and all segmentations all need to be welded to connect; The internal partition segmentation disconnects does not weld, and the position of disconnection is at basic end face or floor place, and being segmented into highly is 1 ~ 2h, and h is story height; Vertical stiffening rib segmentation disconnects does not weld, and the position of disconnection is at basic end face or floor place, and being segmented into highly is 1 ~ 2h, and h is story height.In this way, in work progress, the technical difficulty of lifting location can reduce, and the welding engineering amount reduces 10% ~ 40%, has effectively shortened construction period, has improved engineering economy, and the convenience of construction is improved.
In described internal partition, the stiffening rib disconnect type Multicarity steel core concrete column, in the position that stiffening rib intersects, vertical stiffening rib up/down perforation, horizontal stiffening rib disconnects and is welded together with vertical stiffening rib.
Described multi-cavity steel tube concrete column section is shaped as polygon.
Described polygonal steel pipe 1 is formed by Plate Welding.
The steel plate model that described internal partition 2 adopts is with polygonal steel pipe 1 steel plate or low strength grade, thickness is 1/2 ~ 2/3 of polygonal steel pipe steel plate thickness, height of lift is 1 ~ 2h, h is story height, disconnect at basic end face, floor place along short transverse and not weld so that construct, internal partition can be welded by plurality of steel plates combine " ten " font or " Y " font etc.Internal partition 2 is welded to connect with polygonal steel pipe 1 in polygonal steel pipe 1 bight or in the middle part of the limit.Internal partition is divided into several little cavitys with polygonal steel pipe, steel plate strengthens the effect of contraction of core concrete, concrete is in the three-dimensional pressured state of height, thereby concrete intensity is greatly improved, concrete plasticity and toughness properties all are significantly improved, the simultaneously oblique pull field-effect of internal partition is obvious, and then the rigidity of total, bearing capacity, ductility, shock resistance all have the raising of certain amplitude.
The steel plate model that described horizontal stiffening rib 3 adopts is with polygonal steel pipe 1 steel plate or low strength grade, and thickness is 1/3 ~ 1/2 of polygonal steel pipe steel plate thickness, and vertical spacing is 1/3 ~ 1/5h, and h is story height.
The steel plate model that described vertical stiffening rib 4 adopts is with polygonal steel pipe 1 steel plate or low strength grade, thickness is 1/3 ~ 1/2 of polygonal steel pipe steel plate thickness, height of lift is 1 ~ 2h, and h is story height, does not weld so that construct at basic end face and the disconnection of floor place along short transverse.
According to technical scheme of the present invention, the preparation method of this internal partition, stiffening rib disconnect type Multicarity steel core concrete column, its making step is as follows:
1) vertical stiffening rib 4 is positioned and weld with polygonal steel pipe 1;
2) horizontal stiffening rib 3 is positioned and weld with polygonal steel pipe 1 and vertical stiffening rib 4;
3) each sheet steel plate in the internal partition 2 is positioned and weld with polygonal steel pipe 1;
4) concrete perfusion 5, carry out maintenance;
5) after concrete reaches intensity, continue to repeat 1) ~ 3) step, peripheral polygonal steel pipe 1 is welded to connect, internal partition 2 and vertical stiffening rib 4 disconnect and not welding, and form internal partition, stiffening rib disconnect type Multicarity steel core concrete column.
The present invention can obtain following beneficial effect:
Vertical stiffening rib and internal partition adopt disconnect type, experiment showed, that the rigidity of member, bearing capacity almost do not reduce, but deformability slightly descends and satisfies the designing requirement of standard fully; But this design is convenient construction effectively, and the welding engineering amount reduces 10% ~ 40%, and the lifting location technology requires to reduce, thereby speed of application is highly improved, and forms faster the cage construction system in the highrise building, has improved the economic benefit of engineering.
The engineering direction of principal axis arranges internal partition in the cavity of polygon steel pipe concrete column, and a large cavity is divided into several little cavitys, has improved the restriction ability to core concrete, and has significantly improved anti-side rigidity, bearing capacity and the ductility of member.
The employing of horizontal stiffening rib, vertical stiffening rib and internal partition has reduced the free extension of polygonal steel pipe steel plate, delayed the flexing of polygonal steel pipe steel plate, Effective Raise the stability bearing capacity of member, guaranteed member anti-seismic performance under the operating mode under large deformation.
Description of drawings
Fig. 1 is internal partition, stiffening rib disconnect type Multicarity steel core concrete column (type I) schematic perspective view;
Fig. 2 is internal partition, stiffening rib disconnect type Multicarity steel core concrete column (type II) schematic perspective view
Wherein: 1-polygonal steel pipe, 2-internal partition, the horizontal stiffening rib of 3-, the vertical stiffening rib of 4-, 5-concrete.
The specific embodiment
The present invention will be further described below in conjunction with instantiation:
The embodiment I
As shown in Figure 1, internal partition, stiffening rib disconnect type Multicarity steel core concrete column comprise polygonal steel pipe 1, internal partition 2, horizontal stiffening rib 3, vertical stiffening rib 4 and concrete 5.Internal partition, stiffening rib disconnect type Multicarity steel core concrete column are to add disconnect type internal partition and vertical stiffening rib formation in the inside of common polygon steel pipe concrete column;
The disconnect type internal partition generally disconnects in two major axes orientation settings of Multicarity steel core concrete column and at basic end face and floor place, by such mode, under the prerequisite that has guaranteed the anti-side rigidity of post, bearing capacity ability, reduced the technical difficulty of construction, Effective Raise speed of application, the skeleton system structure of whole highrise building is formed faster, and for the follow-up construction of other member of structure provides the foundation, this is very important to the construction period that shortens highrise building;
But the setting establishment of horizontal stiffening rib and vertical stiffening rib or delay the flexing of polygonal steel pipe steel plate, experiment confirm, arranging anti-side rigidity and the bearing capacity impact of structure of vertical stiffening rib is little, so still can guarantee the anti-seismic performance of structure after disconnecting, but for construction, will provide more convenience.
Internal partition in the present embodiment, stiffening rib disconnect type Multicarity steel core concrete column can be made as follows:
1) according to actual conditions, makes welding polygonal steel pipe 1;
2) suitable position at polygonal steel pipe welds to vertical stiffening rib location and with polygonal steel pipe, adopts twin fillet wolt;
3) horizontal stiffening rib is positioned and weld with polygonal steel pipe and vertical stiffening rib, adopt twin fillet wolt;
4) at the suitable position welding internal partition of polygonal steel pipe, when connecting in the polygonal steel pipe bight, should take effective welding procedure to guarantee the quality of weld seam between three block plates;
5) concreting in the multi-cavity steel tube that forms, after concrete reaches intensity, repeat 1) ~ 3) process, only the polygonal steel pipe of periphery carried out welding assembly, inner stiffening rib and internal partition all do not weld, and namely form internal partition, stiffening rib disconnect type Multicarity steel core concrete column.
The embodiment II
As shown in Figure 2, internal partition, stiffening rib disconnect type Multicarity steel core concrete column comprise polygonal steel pipe 1, internal partition 2 and concrete 5.Internal partition, stiffening rib disconnect type Multicarity steel core concrete column and the practice are to add the disconnect type internal partition to form in the inside of common polygon steel pipe concrete column;
This kind post does not comprise horizontal stiffening rib and vertical stiffening rib, sectional dimension is less, segmentation steel member can be made in processing factory, only peripheral polygonal steel pipe is welded to connect during the site operation connection segment, internal partition disconnects, such design can make difficulty of construction greatly reduce, and speed of application significantly improves, and has improved engineering economy.
Internal partition in the present embodiment, stiffening rib disconnect type Multicarity steel core concrete column can be made as follows:
1) according to actual conditions, positioning welding " ten " font internal partition;
2) steel plate with polygonal steel pipe is welded on " ten " font internal partition successively, can adopt twin fillet wolt or single face fillet weld;
3) Plate Welding with polygonal steel pipe arrives together;
4) concreting in the multi-cavity steel tube that forms is after concrete reaches intensity.Repeat 1) ~ 3) process, only the polygonal steel pipe of periphery being carried out welding assembly, internal partition does not weld, and namely forms internal partition disconnect type Multicarity steel core concrete column.
More than be exemplary embodiments of the present invention, enforcement of the present invention is not limited to this.
Claims (8)
1. internal partition, stiffening rib disconnect type Multicarity steel core concrete column is characterized in that: it comprises polygonal steel pipe (1), internal partition (2), horizontal stiffening rib (3), vertical stiffening rib (4) and is filled in the interior concrete (5) of polygonal steel pipe; Polygonal steel pipe (1) is continuously vertical, and all segmentations all need to be welded to connect; Internal partition (2) segmentation disconnects does not weld, and the position of disconnection is at basic end face or floor place, and being segmented into highly is 1 ~ 2h, and h is story height; Vertical stiffening rib (4) segmentation disconnects does not weld, and the position of disconnection is at basic end face or floor place, and being segmented into highly is 1 ~ 2h, and h is story height.
2. internal partition according to claim 1, stiffening rib disconnect type Multicarity steel core concrete column, it is characterized in that: the concrete column cross sectional shape is polygon.
3. internal partition according to claim 1, stiffening rib disconnect type Multicarity steel core concrete column, it is characterized in that: polygonal steel pipe (1) is formed by Plate Welding.
4. internal partition according to claim 1, stiffening rib disconnect type Multicarity steel core concrete column, it is characterized in that: the same polygonal steel pipe of steel plate model (1) steel plate that internal partition (2) adopts or low strength grade, thickness is 1/2 ~ 2/3 of polygonal steel pipe steel plate thickness; Internal partition (2) is welded to connect with polygonal steel pipe (1) at bight or the middle part, limit of polygonal steel pipe (1).
5. internal partition according to claim 1, stiffening rib disconnect type Multicarity steel core concrete column, it is characterized in that: in the position that horizontal stiffening rib and vertical stiffening rib intersect, vertical stiffening rib up/down perforation, horizontal stiffening rib disconnects and is welded together with vertical stiffening rib.
6. internal partition according to claim 1, stiffening rib disconnect type Multicarity steel core concrete column, it is characterized in that: the same polygonal steel pipe of steel plate model (1) steel plate that described horizontal stiffening rib (3) adopts or low strength grade, thickness is 1/3 ~ 1/2 of polygonal steel pipe steel plate thickness, spacing is 1/3 ~ 1/5h, h is story height, adopts the twin fillet wolt welding at the position of intersecting with vertical stiffening rib (4) and polygonal steel pipe (1).
7. internal partition according to claim 1, stiffening rib disconnect type Multicarity steel core concrete column, it is characterized in that: the same polygonal steel pipe of steel plate model (1) that described vertical stiffening rib (4) adopts or low strength grade, thickness is 1/3 ~ 1/2 of polygonal steel pipe steel plate thickness, adopts the twin fillet wolt welding with the polygonal steel pipe intersection area.
8. the preparation method of internal partition according to claim 1, stiffening rib disconnect type Multicarity steel core concrete column, it is characterized in that: its making step is as follows,
1) vertical stiffening rib (4) is positioned and weld with polygonal steel pipe (1);
2) horizontal stiffening rib (3) is positioned and weld with polygonal steel pipe (1) and vertical stiffening rib (4);
3) each sheet steel plate in the internal partition (2) is positioned and weld with polygonal steel pipe (1);
4) concrete perfusion (5) carries out maintenance;
5) after concrete reaches intensity more than 3 days, continue to repeat 1) ~ 4) step, peripheral polygonal steel pipe (1) is welded to connect, and internal partition (2) and vertical stiffening rib (4) disconnect and not welding, and form internal partition, stiffening rib disconnect type Multicarity steel core concrete column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210511420.7A CN102995832B (en) | 2012-12-03 | 2012-12-03 | Multi-cavity steel tube concrete column with disconnected inner partition boards and stiffening ribs and manufacturing method of concrete column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210511420.7A CN102995832B (en) | 2012-12-03 | 2012-12-03 | Multi-cavity steel tube concrete column with disconnected inner partition boards and stiffening ribs and manufacturing method of concrete column |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102995832A true CN102995832A (en) | 2013-03-27 |
| CN102995832B CN102995832B (en) | 2015-04-29 |
Family
ID=47924886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210511420.7A Expired - Fee Related CN102995832B (en) | 2012-12-03 | 2012-12-03 | Multi-cavity steel tube concrete column with disconnected inner partition boards and stiffening ribs and manufacturing method of concrete column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102995832B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711256A (en) * | 2014-01-15 | 2014-04-09 | 北京工业大学 | Multi-cavity concrete filled steel tubular column with perforated inner diaphragms and implementation method of column |
| CN103967214A (en) * | 2014-04-12 | 2014-08-06 | 北京工业大学 | Combined column formed by embedding round steel tubes filled with recycled concrete in multiple-cavity steel pipe filled with concrete and provided with batten plates |
| CN106013607A (en) * | 2016-05-20 | 2016-10-12 | 西安建筑科技大学 | Multi-cavity concrete-filled steel pipe combination column with stiffening ribs and manufacturing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB146671A (en) * | 1919-05-02 | 1920-07-15 | John Albert Calvert | Improvements in and relating to reinforced concrete girders, beams, joists and the like |
| EP0432121A1 (en) * | 1989-12-04 | 1991-06-12 | Palgruppen Geomekan Ab | Method for producing reinforcement for concrete members, preferably concrete piles, reinforcement and a strut member incorporated therein |
| JPH07207836A (en) * | 1994-01-21 | 1995-08-08 | Kajima Corp | Half precast structure for column, and construction thereof |
| CN201835439U (en) * | 2010-09-30 | 2011-05-18 | 广东杭萧钢构有限公司 | Concrete column with steel pipe |
| CN201865245U (en) * | 2010-10-22 | 2011-06-15 | 广东杭萧钢构有限公司 | Steel pipe concrete column with transverse and longitudinal stiffening plates |
-
2012
- 2012-12-03 CN CN201210511420.7A patent/CN102995832B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB146671A (en) * | 1919-05-02 | 1920-07-15 | John Albert Calvert | Improvements in and relating to reinforced concrete girders, beams, joists and the like |
| EP0432121A1 (en) * | 1989-12-04 | 1991-06-12 | Palgruppen Geomekan Ab | Method for producing reinforcement for concrete members, preferably concrete piles, reinforcement and a strut member incorporated therein |
| JPH07207836A (en) * | 1994-01-21 | 1995-08-08 | Kajima Corp | Half precast structure for column, and construction thereof |
| CN201835439U (en) * | 2010-09-30 | 2011-05-18 | 广东杭萧钢构有限公司 | Concrete column with steel pipe |
| CN201865245U (en) * | 2010-10-22 | 2011-06-15 | 广东杭萧钢构有限公司 | Steel pipe concrete column with transverse and longitudinal stiffening plates |
Non-Patent Citations (1)
| Title |
|---|
| 彭斌等: "多腔钢管混凝土柱巨型框架抗震性能试验研究", 《结构工程师》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711256A (en) * | 2014-01-15 | 2014-04-09 | 北京工业大学 | Multi-cavity concrete filled steel tubular column with perforated inner diaphragms and implementation method of column |
| CN103967214A (en) * | 2014-04-12 | 2014-08-06 | 北京工业大学 | Combined column formed by embedding round steel tubes filled with recycled concrete in multiple-cavity steel pipe filled with concrete and provided with batten plates |
| CN103967214B (en) * | 2014-04-12 | 2016-04-20 | 北京工业大学 | Multi-cavity steel tube concrete embedded round steel pipe regeneration concrete band batten plate coupled column |
| CN106013607A (en) * | 2016-05-20 | 2016-10-12 | 西安建筑科技大学 | Multi-cavity concrete-filled steel pipe combination column with stiffening ribs and manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102995832B (en) | 2015-04-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107143034A (en) | A kind of assembly concrete frame structure beam column rigid connection node | |
| CN105544801A (en) | Bolted connection technique for prefabricated large plate shear wall provided with concealed bracing and construction method | |
| CN105064529A (en) | Prefabricated and assembled large-board shear wall structure with concealed bracings | |
| CN108589971A (en) | A kind of closed-section steel deck combined concrete shear wall connecting node and production method | |
| CN203452228U (en) | Frame-shear wall architectural structure | |
| CN103216039A (en) | Combined type steel pipe concrete special-shaped column with honeycomb-hole partition plate | |
| CN202298983U (en) | Concrete composite shear wall | |
| CN201962844U (en) | Hollow composition board internally provided with steel pipes and steel plates | |
| CN202202412U (en) | Rectangular steel pipe concrete special-shaped column-steel beam framework middle node | |
| CN102995831A (en) | Multi-cavity steel tube concrete column with inner partition board with horizontal joints and manufacturing method of concrete column | |
| CN102995832B (en) | Multi-cavity steel tube concrete column with disconnected inner partition boards and stiffening ribs and manufacturing method of concrete column | |
| CN105220792A (en) | A kind of prefabricated concealed bracings energy-consuming shear wall and assemble method thereof | |
| CN108729544B (en) | Dry-and wet-type composite joint pin-connected panel construction | |
| CN102535747A (en) | Multi-cavity concrete-filled steel tube column with angle bars bonded and welded at corners and reinforcing cages arranged in cavities and construction method of multi-cavity concrete-filled steel tube column | |
| CN204081070U (en) | A kind of large span steel frame beam cantilevered structure | |
| CN206769102U (en) | A kind of close formula abnormal shape manomelia steel plate wall core wall structure of building structure | |
| CN111691580A (en) | Superposed embedded column with large-diameter edge member vertical stress reinforcing steel bars arranged in cavity and prefabricated wall | |
| CN108729541B (en) | Connect beam type Building block construction method | |
| CN202202415U (en) | Side node of rectangular steel pipe concrete special-shaped column and steel beam framework | |
| CN205976166U (en) | Assembled composite floor slab | |
| CN205776898U (en) | Overall assembled reinforced concrete shear wall structure system | |
| CN204983213U (en) | Dark big board shear wall structure that supports in prefabricated assembled area | |
| CN108678164A (en) | Connect beam type Building block structure | |
| CN205822507U (en) | A kind of steel plate combined shear wall | |
| CN108412036A (en) | Assembled H profile steel column-isolated footing-concrete collar tie beam cross connecting node |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 Termination date: 20211203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |