CN108018780B - A kind of steel tower column design and construction method of bolting and welding - Google Patents
A kind of steel tower column design and construction method of bolting and welding Download PDFInfo
- Publication number
- CN108018780B CN108018780B CN201711346711.4A CN201711346711A CN108018780B CN 108018780 B CN108018780 B CN 108018780B CN 201711346711 A CN201711346711 A CN 201711346711A CN 108018780 B CN108018780 B CN 108018780B
- Authority
- CN
- China
- Prior art keywords
- segment
- connecting structure
- strength bolt
- bolt connecting
- welding
- 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
- 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
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/08—Structures made of specified materials of metal
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/34—Arrangements for erecting or lowering towers, masts, poles, chimney stacks, or the like
- E04H12/342—Arrangements for stacking tower sections on top of each other
-
- 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
- E01D2101/30—Metal
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a kind of steel tower column of bolting and welding design and construction methods, belong to science of bridge building or other structural steelwork fields, between steel tower column segment and segment, first pass through a small amount of high-strength bolt connecting structure connection, to undertake the self weight of two to three segment head tower segments thereon, in this way, after certain segment is installed, without waiting for the segment and the indirect seam welding in next segment, segment installation can be carried out.After certain segment is installed, it first passes through high-strength bolt connecting structure to connect with next segment, thereafter, while continuing to lift a upper segment, and then the Partial seams welding in addition to high-strength bolt connecting structure between the segment and next segment is carried out, until its welding finishes.After seam welds other than high-strength bolt connecting structure, high-strength bolt connecting structure is removed, and the area joints are welded, so completes the welding of tunneling boring weld seam.The present invention had not only had extremely low project cost and maintenance difficulties, but also had high construction efficiency.
Description
Technical field
The invention belongs to science of bridge building or other structural steelwork fields, in particular to a kind of steel tower column design and construction side
Method.
Background technique
Steel tower column is widely used in science of bridge building, and because steel tower column height is high, construction weight is big, generally use at present " point
Segment factory manufacture, segmented assembly at the scene connect height " design and construction method.When segmented scene connects high, generally there is two
Kind connection method, a kind of method that method is welded to connect between segment, another method are connected between segment using high-strength bolt
Method.
For being welded to connect, because the girth welding period is long, and steel construction segment lifting assembled speed is relatively fast, to steel
King-post installation period, which is formed, to be restricted, as after certain steel tower column segment is installed under normal circumstances, generally required to wait 4-5 days or very
To longer time, after the completion of the segment and next segment (note: next segment refers in following segment) seam welds, Fang Nengjin
The installation of the upper segment (note: a upper segment refers in segment above) of row, tower crane is in idle state during head tower welds, by welding
Control critical circuits are connect, to restrict installation speed.
For high-strength bolt connection, installation progress is very fast for opposite welded connecting, restricts to the duration small.But because complete
Section all uses high-strength bolt to connect, and high-strength bolt connecting structure input amount is huge, increases cost, and it is difficult to increase later maintenance
Degree, and adverse effect is caused to steel tower column appearance.And if waiting tunneling boring high-strength bolt is all applied after twisting, then installs one
Segment will also restrict the duration to a certain extent.
Summary of the invention
It is an object of the invention to: it proposes a kind of head tower column construction method of bolting and welding, both there is extremely low engineering to make
Valence and maintenance difficulties, and there is high construction efficiency.
The object of the invention is realized by following technical proposals:
A kind of steel tower column design and construction method of bolting and welding, it is characterised in that successively include the following steps, wherein n is positive
Integer:
Step 1: the (n+1)th segment of lifting, and connect by part high-strength bolt connecting structure with the n-th segment, high-strength bolt
The dosage of connecting structure need to only meet the self weight for undertaking two to three segment head tower segments thereon；
Step 2: the n-th+2 segment of lifting, and connect by part high-strength bolt connecting structure with the (n+1)th segment, high-strength spiral shell
The dosage of bolt connecting structure need to only meet the self weight for undertaking two to three segment head tower segments thereon；Meanwhile carry out the n-th segment with
Except high-strength bolt connecting structure is with the girth welding of exterior domain between (n+1)th segment；
The gravity load in this stage, the (n+1)th segment and the n-th+2 segment is undertaken by high-strength bolt connecting structure, is being welded
The n-th segment and the (n+1)th intersegmental weld seam do not undertake upper load；
Step 3: continue the n-th+3 segment of lifting, and is connect by part high-strength bolt connecting structure with the n-th+2 segment, it is high
The dosage of strength bolt connecting structure need to only meet the self weight for undertaking two to three segment head tower segments thereon；Meanwhile carrying out (n+1)th
Except high-strength bolt connecting structure is with the girth welding of exterior domain between segment and the n-th+2 segment, this n-th segment and the (n+1)th section in stage
Weld seam between section in addition to high-strength bolt connecting structure finishes welding, alternatively, removing high-strength spiral shell between the n-th segment and the (n+1)th segment
Weld seam other than bolt connecting structure can be completed before the n-th+3 segment lifting；
This stage, the (n+1)th segment, the n-th+2 segment, the n-th+3 segment gravity load undertaken by high-strength bolt connecting structure,
The n-th segment welded and the (n+1)th intersegmental weld seam, the (n+1)th segment and the n-th+2 intersegmental weld seam do not undertake top lotus
It carries；
Step 4: continue the n-th+4 segment of lifting, and is connect by part high-strength bolt connecting structure with the n-th+3 segment, it is high
The dosage of strength bolt connecting structure need to only meet the self weight for undertaking two to three segment head tower segments thereon；Meanwhile carrying out n-th+2
Except high-strength bolt connecting structure is with the girth welding of exterior domain between segment and the n-th+3 segment, the (n+1)th segment of this with n-th+2 in stage
Weld seam between segment in addition to high-strength bolt connecting structure finishes welding, alternatively, except height between the (n+1)th segment and the n-th+2 segment
Weld seam other than strength bolt connecting structure can be completed before the n-th+4 segment lifting；
This stage removes the n-th segment and the intersegmental high-strength bolt connecting structure of n+1, the above segment weight of the seam crossing
Amount is transferred to soldered weld seam and undertakes；After high-strength bolt connecting structure is removed, the area joints welding is carried out, until should
All welding finishes seam at the merogenesis of segment；
Step 5: according to abovementioned steps, similarly promoting, carry out the connection construction of other head tower segments.
Alternatively, when high-strength bolt connecting structure releases between certain segment, solder joint length reaches entirely between the segment
Section length is 80% or even 90% or more.
In the method for the present invention, between steel tower column segment and segment, a small amount of high-strength bolt connecting structure connection is first passed through, to undertake
The self weight of two to three segment head tower segments thereon, without whole high-strength bolt connecting structure of constructing, in this way, certain segment is pacified
After the completion of dress, without waiting for the segment and the indirect seam welding in next segment, segment installation can be carried out.It is installed in certain segment
After the completion, it first passes through high-strength bolt connecting structure to connect with next segment, thereafter, while continuing to lift a upper segment, tightly
Then the Partial seams welding in addition to high-strength bolt connecting structure between the segment and next segment is carried out, until its welding finishes.
After seam welds other than high-strength bolt connecting structure, high-strength bolt connecting structure is removed, and the area joints are welded,
So complete the welding of tunneling boring weld seam.It is new above to pacify when the welding of certain segment tunneling boring weld seam finishes in the case of general progress
It fills segment and saves left and right in 2-3, therefore, when actual design is constructed, consider that high-strength bolt connecting structure undertakes the self weight of the segment 2-3 head tower
?.Moreover, solder joint length is up to tunneling boring length 80% or even 90% when high-strength bolt connecting structure releases
More than, and seam crossing stress level is very low at this time, there is no at high-strength bolt connecting structure with other first welding regions because
Weld it is asynchronous and caused by stress state difference condition, do not influence structural stress state.
The foregoing main solution of the present invention and further alternatives thereof can be freely combined to form multiple schemes, be this
Invention can be used and claimed scheme；And it is of the invention, between (each non conflicting selection) selection and between other selections
It can also be freely combined.Those skilled in the art, which can be illustrated after understanding the present invention program according to the prior art and common knowledge, to be had
Multiple combinations are the claimed technical solution of the present invention, do not do exhaustion herein.
Beneficial effects of the present invention: not only there is extremely low project cost and maintenance difficulties, but also there is high construction efficiency.
Detailed description of the invention
Fig. 1 is the head tower segment plan view of the embodiment of the present invention；
Fig. 2 is the head tower segment facade arrangement schematic diagram of the embodiment of the present invention；
Fig. 3 is the Construction State schematic diagram of the step 1 of the embodiment of the present invention；
Fig. 4 is the Construction State schematic diagram of the step 2 of the embodiment of the present invention；
Fig. 5 is the Construction State schematic diagram of the step 3 of the embodiment of the present invention；
Fig. 6 is the Construction State schematic diagram of the step 4 of the embodiment of the present invention；
Fig. 7 is the Construction State schematic diagram of the step 5 of the embodiment of the present invention；
1 it is wherein head tower segment, 2 be high-strength bolt connecting structure, 3 be segment merogenesis line, 4 be girth welding, 5 is former high
Seam welds at strength bolt connecting structure.
Specific embodiment
Following non-limiting examples are for illustrating the present invention.
Shown in 6, a kind of steel tower column design and construction method of bolting and welding successively includes the following steps (this hair
Bright middle n is positive integer, when using the method for the present invention from the connection of the 1st head tower segment and the 2nd head tower segment, n 1, according to this
Analogize.The high-strength bolt refers to and is manufactured with high strength steel, or needs to impose the bolt of larger pretightning force, belongs to one kind
Standard component.Under normal circumstances, the plain bolt for the load ratio same specification that high-strength bolt can be born is big.Usually by regulation bolt
Performance rate in 8.8 grades or more persons, referred to as high-strength bolt):
Step 1, with reference to shown in Fig. 3: the (n+1)th segment of lifting, and pass through part high-strength bolt connecting structure 2 and the n-th segment
Connection, the dosage of high-strength bolt connecting structure 2 need to only meet the self weight for undertaking two to three segment head tower segments 1 thereon, and nothing
The high-strength bolt connecting structure 2 that need to construct whole；
Step 2, with reference to shown in Fig. 4: the n-th+2 segment of lifting, and pass through part high-strength bolt connecting structure 2 and the (n+1)th section
Section connection, the dosage of high-strength bolt connecting structure 2 need to only meet the self weight for undertaking two to three segment head tower segments 1 thereon, and
Without whole high-strength bolt connecting structure 2 of constructing；Meanwhile it carrying out between the n-th segment and the (n+1)th segment except high-strength bolt connects structure
2 are made with the girth welding 4 of exterior domain；
The gravity load in this stage, the (n+1)th segment and the n-th+2 segment is undertaken by high-strength bolt connecting structure 2, is being welded
The n-th segment and the (n+1)th intersegmental weld seam do not undertake upper load；
Step 3, with reference to shown in Fig. 5: continue the n-th+3 segment of lifting, and by part high-strength bolt connecting structure 2 and n-th+
The connection of 2 segments, the dosage of high-strength bolt connecting structure 2 need to only meet the self weight for undertaking two to three segment head tower segments 1 thereon,
Without whole high-strength bolt connecting structure 2 of constructing；Meanwhile it carrying out between the (n+1)th segment and the n-th+2 segment except high-strength bolt connects
Construction 2 is connect with the girth welding 4 of exterior domain, this in stage the n-th segment and the (n+1)th segment between in addition to high-strength bolt connecting structure
Weld seam finishes welding, alternatively, the weld seam between the n-th segment and the (n+1)th segment in addition to high-strength bolt connecting structure is in the n-th+3 section
It can be completed before section lifting；
This stage, the (n+1)th segment, the n-th+2 segment, the n-th+3 segment gravity load held by high-strength bolt connecting structure 2
Load, the n-th segment welded and the (n+1)th intersegmental weld seam, the (n+1)th segment and the n-th+2 intersegmental weld seam do not undertake
Portion's load；
Step 4, with reference to shown in Fig. 6: continue the n-th+4 segment of lifting, and by part high-strength bolt connecting structure 2 and n-th+
The connection of 3 segments, the dosage of high-strength bolt connecting structure 2 need to only meet the self weight for undertaking two to three segment head tower segments 1 thereon,
Without whole high-strength bolt connecting structure 2 of constructing；Meanwhile it carrying out between the n-th+2 segment and the n-th+3 segment except high-strength bolt connects
Construction 2 is connect with the girth welding 4 of exterior domain, this in stage the (n+1)th segment and the n-th+2 segment between in addition to high-strength bolt connecting structure
Weld seam welding is finished, alternatively, the weld seam between the (n+1)th segment and the n-th+2 segment in addition to high-strength bolt connecting structure is n-th
It can be completed before+4 segment liftings；
This stage removes the n-th segment and the intersegmental high-strength bolt connecting structure 2 of n+1, the above segment weight of the seam crossing
Amount is transferred to soldered weld seam and undertakes；When high-strength bolt connecting structure 2 releases between the segment, welds and connect between the segment
Length is stitched up to tunneling boring length 90% or more.After high-strength bolt connecting structure 2 is removed, the area joints welding is carried out, until
All welding finishes seam at the segment merogenesis；
Step 5, with reference to shown in Fig. 7: according to abovementioned steps, similarly promoting, carry out the connection construction of other head tower segments.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (3)
- The method 1. a kind of steel tower column of bolting and welding is designed and constructed, it is characterised in that successively include the following steps, wherein n is positive whole Number:Step 1: the (n+1)th segment of lifting, and connect by part high-strength bolt connecting structure with the n-th segment, high-strength bolt connection The dosage of construction need to only meet the self weight for undertaking two to three segment head tower segments thereon；Step 2: the n-th+2 segment of lifting, and connect by part high-strength bolt connecting structure with the (n+1)th segment, high-strength bolt connects The dosage for connecing construction need to only meet the self weight for undertaking two to three segment head tower segments thereon；Meanwhile carry out the n-th segment with n-th+ Except high-strength bolt connecting structure is with the girth welding of exterior domain between 1 segment；The gravity load in this stage, the (n+1)th segment and the n-th+2 segment is undertaken by high-strength bolt connecting structure, n-th welded Segment and the (n+1)th intersegmental weld seam do not undertake upper load；Step 3: continuing the n-th+3 segment of lifting, and connect by part high-strength bolt connecting structure with the n-th+2 segment, high-strength spiral shell The dosage of bolt connecting structure need to only meet the self weight for undertaking two to three segment head tower segments thereon；Meanwhile carrying out the (n+1)th segment Except high-strength bolt connecting structure is with the girth welding of exterior domain between the n-th+2 segment, this in stage the n-th segment and the (n+1)th segment between Weld seam in addition to high-strength bolt connecting structure finishes welding, alternatively, except high-strength bolt connects between the n-th segment and the (n+1)th segment Connect the weld seam other than construction can be completed before the n-th+3 segment lifting；This stage, the (n+1)th segment, the n-th+2 segment, the n-th+3 segment gravity load undertaken by high-strength bolt connecting structure, The n-th segment and the (n+1)th intersegmental weld seam, the (n+1)th segment and the n-th+2 intersegmental weld seam of welding do not undertake upper load；Step 4: continuing the n-th+4 segment of lifting, and connect by part high-strength bolt connecting structure with the n-th+3 segment, high-strength spiral shell The dosage of bolt connecting structure need to only meet the self weight for undertaking two to three segment head tower segments thereon；Meanwhile carrying out the n-th+2 segment Except high-strength bolt connecting structure is with the girth welding of exterior domain between the n-th+3 segment, this (n+1)th segment and the n-th+2 segment in stage Between weld seam in addition to high-strength bolt connecting structure welding is finished, alternatively, removing high-strength spiral shell between the (n+1)th segment and the n-th+2 segment Weld seam other than bolt connecting structure can be completed before the n-th+4 segment lifting；This stage removes the n-th segment and the intersegmental high-strength bolt connecting structure of n+1, and the above segment weight of the seam crossing turns Soldered weld seam is moved to undertake；After high-strength bolt connecting structure is removed, the area joints welding is carried out, until the segment All welding finishes seam at merogenesis；Step 5: according to abovementioned steps 1-4, similarly promoting, carry out the connection construction of other head tower segments.
- The method 2. steel tower column of bolting and welding as described in claim 1 is designed and constructed, it is characterised in that: high-strength between certain segment When bolt connection structure releases, solder joint length reaches tunneling boring length 80% or more between the segment.
- The method 3. steel tower column of bolting and welding as claimed in claim 2 is designed and constructed, it is characterised in that: high-strength between certain segment When bolt connection structure releases, solder joint length reaches tunneling boring length 90% or more between the segment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711346711.4A CN108018780B (en) | 2017-12-15 | 2017-12-15 | A kind of steel tower column design and construction method of bolting and welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711346711.4A CN108018780B (en) | 2017-12-15 | 2017-12-15 | A kind of steel tower column design and construction method of bolting and welding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108018780A CN108018780A (en) | 2018-05-11 |
| CN108018780B true CN108018780B (en) | 2019-04-16 |
Family
ID=62073733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711346711.4A Active CN108018780B (en) | 2017-12-15 | 2017-12-15 | A kind of steel tower column design and construction method of bolting and welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108018780B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110904857B (en) * | 2019-12-30 | 2021-06-22 | 中国铁建投资集团有限公司 | Temporary buckling tower installation method for self-anchored suspension bridge construction |
| CN112692521A (en) * | 2020-12-23 | 2021-04-23 | 吉林建筑大学 | Fine processing method for connecting node based on assembly type steel structure |
| CN114033234B (en) * | 2021-12-14 | 2023-02-28 | 安徽省路港工程有限责任公司 | Novel main tower crown structure and sectional installation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100662811B1 (en) * | 2006-09-18 | 2006-12-29 | 우경건설 주식회사 | Non-synthetic complex steel pipe columm having tie ends for filling a steel soncrete and construction method thereof |
| CN102261043A (en) * | 2011-07-08 | 2011-11-30 | 中铁大桥局股份有限公司 | Assembled steel pipe upright post system |
| CN105735112A (en) * | 2016-04-14 | 2016-07-06 | 北京工业大学 | Bolt connection-based rapid assembling precast rectangular concrete filled steel tube bridge pier |
-
2017
- 2017-12-15 CN CN201711346711.4A patent/CN108018780B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100662811B1 (en) * | 2006-09-18 | 2006-12-29 | 우경건설 주식회사 | Non-synthetic complex steel pipe columm having tie ends for filling a steel soncrete and construction method thereof |
| CN102261043A (en) * | 2011-07-08 | 2011-11-30 | 中铁大桥局股份有限公司 | Assembled steel pipe upright post system |
| CN105735112A (en) * | 2016-04-14 | 2016-07-06 | 北京工业大学 | Bolt connection-based rapid assembling precast rectangular concrete filled steel tube bridge pier |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108018780A (en) | 2018-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108018780B (en) | A kind of steel tower column design and construction method of bolting and welding | |
| CN103132506B (en) | Bored pile double-deck Reinforced Hoop reinforcing cage processing and fabricating method | |
| JP2019500525A (en) | Assembled steel pipe casing reinforced concrete composite node and mounting method | |
| CN105569271B (en) | The compound shear connector and its fabrication and installation method of a kind of steel-concrete structure | |
| CN103334378B (en) | The few circulation classification stretch-draw construction method of Self-Anchored Concrete Suspension hoist cable | |
| CN103883054B (en) | A kind of rope bar girt strip composite floor system and construction method thereof | |
| CN102674136A (en) | Lifting method for large-scale tower equipment | |
| CN108222289A (en) | A kind of assembled bamboo wood beam-column joint connecting structure | |
| CN102535648A (en) | Steel pipe column ring beam column node structure and construction method thereof | |
| CN205617567U (en) | No welded assembled steel pipe concrete beam -column joint | |
| CN105804400A (en) | Hoisting construction method of curved truss | |
| CN110528848A (en) | External wall is laid with stone material construction builder's jack and its installation method | |
| CN105633544B (en) | FAST telescope collar tie beam lattice column structure systems | |
| CN108252223A (en) | The installation method and connection structure of the horizontal-associate structure of steel truss girder | |
| CN107529575A (en) | Universal steel concrete supporting component | |
| CN208594732U (en) | Easy-to-dismount steelwork tower truss outrigger platform | |
| CN106544959A (en) | The construction method of the lifting sections of the king-tower containing saddle and bridge main tower saddle | |
| CN203947596U (en) | A kind of assembly type cast steel outer sleeve-T-shaped beam and post linkage | |
| CN202688848U (en) | Anchoring connecting structure for nodes of composite truss girder cable-stayed bridge | |
| CN104652430A (en) | Composite reinforcement partially prestressed concrete solid square pile and manufacturing method thereof | |
| CN110344332A (en) | Bracket is used in a kind of construction of bridge main tower upper beam | |
| CN107654057A (en) | Fix self-locking type steel pipe scaffold | |
| CN206957067U (en) | Universal steel concrete supporting component | |
| CN204326490U (en) | A kind of construction of lift well operating platform | |
| CN208363422U (en) | Damage controllable steel tube concrete superposed column |
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 | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210902 Address after: 241060 R & D Center (buildings 4 and 5), No. 17-8 Fumin Road, Jiujiang Economic Development Zone, Jiujiang District, Wuhu City, Anhui Province Patentee after: CCCC SHEC FOURTH ENGINEERING Co.,Ltd. Patentee after: The Second Harbor Engineering Co. Patentee after: CCCC HIGHWAY BRIDGES NATIONAL ENGINEERING RESEARCH CENTER Co.,Ltd. Address before: 241009 Building 1, West Side of Innovation Road, Jiujiang Economic Development Zone, Wuhu City, Anhui Province Patentee before: CCCC SHEC FOURTH ENGINEERING Co.,Ltd. Patentee before: The Second Harbor Engineering Co. |