CN111894299A - Node structure of newly-added steel column on upper structure of steel structure building and construction method thereof - Google Patents
Node structure of newly-added steel column on upper structure of steel structure building and construction method thereof Download PDFInfo
- Publication number
- CN111894299A CN111894299A CN202010794106.9A CN202010794106A CN111894299A CN 111894299 A CN111894299 A CN 111894299A CN 202010794106 A CN202010794106 A CN 202010794106A CN 111894299 A CN111894299 A CN 111894299A
- Authority
- CN
- China
- Prior art keywords
- steel
- node
- column
- columns
- herringbone
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 129
- 239000010959 steel Substances 0.000 title claims abstract description 129
- 238000010276 construction Methods 0.000 title claims abstract description 26
- 229910000746 Structural steel Inorganic materials 0.000 claims abstract description 21
- 238000006243 chemical reaction Methods 0.000 claims description 38
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 30
- 230000000875 corresponding Effects 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 6
- 230000003014 reinforcing Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 210000001503 Joints Anatomy 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 230000002093 peripheral Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0266—Enlarging
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2406—Connection nodes
Abstract
The invention discloses a node structure of a newly added steel column in an upper structure of a steel structure building and a construction method thereof. By the node structure and the construction method thereof, the original structural steel column can be used as a support in a high-rise structure to form a foundation of a newly added steel column, so that the change requirement is met, the lower structural foundation does not need to be changed, and the construction period is saved.
Description
Technical Field
The invention relates to the technical field of steel structures, in particular to a node structure of a newly added steel column on an upper structure of a steel structure building and a construction method thereof.
Background
In the Construction of an EPC (Engineering project Construction) super high-rise steel structure building, a foundation structure has been constructed since a drawing of an upper structure is late. Because of the design needs, need increase steel column and girder steel at superstructure, if carry out independent foundation construction again, the cost is great, also has very big influence to the time limit for a project simultaneously. Therefore, a steel column node for steel structure building needs to be designed to meet the design requirement.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the node structure of the newly added steel column in the upper structure of the steel structure building and the construction method thereof, which can conveniently and quickly meet the requirement of the newly added steel column of the steel structure, reduce the construction of the foundation, save the construction period and ensure the construction progress.
In order to achieve the technical effect, the invention provides, in a first aspect, a node structure of a newly added steel column in an upper structure of a steel structure building, which includes a herringbone conversion node, wherein a support leg at the top of the herringbone conversion node is vertically and upwardly formed into a column foot for connecting the newly added steel column, two support legs at the bottom of the herringbone conversion node are obliquely oriented to two original structure steel columns at two sides and are respectively connected with an inclined strut between the two original structure steel columns, and a first reinforcing steel beam is connected between the two inclined struts and the original structure steel column at the adjacent side.
As an embodiment of the node structure of the present invention, the first reinforcing steel beams between the two braces and between the brace and the primary structural steel column are equal in height.
As an embodiment of the joint structure of the present invention, the first reinforcing steel beam is horizontally positioned at a position lower than the center of the diagonal brace
As an embodiment of the node construction of the present invention, a second reinforcing steel beam is connected between both sides of the herringbone conversion node and the primary structural steel columns of the corresponding sides.
As an embodiment of the joint structure of the present invention, a third reinforcing steel beam is connected between bottoms of the two braces, and both ends of the third reinforcing steel beam are further connected to the two primary structural steel columns on both sides, respectively.
As an embodiment of the joint structure of the present invention, the two primary structural steel columns are provided at their sides with diagonal column legs for connecting the bottom ends of the corresponding diagonal braces.
As an embodiment of the node structure of the present invention, the herringbone conversion node is a steel structure, and the herringbone conversion node and the newly added steel column, the herringbone conversion node and the inclined strut, and the inclined strut and the original structural steel column are all connected by welding or bolts.
The invention provides a joint construction method for adding steel columns to a superstructure of a steel structure building in a second aspect, which comprises the following steps:
two inclined struts are arranged between original structure steel columns on two sides of a newly added steel column to be installed, the bottom ends of the two inclined struts are respectively fixed on the opposite inner side surfaces of the two original structure steel columns, and the top ends of the two inclined struts are close to each other and point to the position of the newly added steel column;
installing herringbone conversion nodes at the top ends of the two inclined struts, respectively connecting two support legs at the bottom of the herringbone conversion nodes with the top ends of the two inclined struts, and vertically and upwards forming a support leg at the top of the herringbone conversion nodes into a column base for connecting the newly added steel column;
and connecting first reinforcing steel beams between the two inclined struts and the original structural steel column close to one side.
As an implementation mode of the node construction method, the method further comprises the following steps: and connecting second reinforcing steel beams between two sides of the installed herringbone conversion node and the original structural steel columns on the corresponding sides.
As an implementation mode of the node construction method, the method further comprises the following steps: and after the two inclined struts are correspondingly connected with the two original structure steel columns, a third reinforcing steel beam is connected between the bottoms of the two inclined struts, and two ends of the third reinforcing steel beam are respectively connected to the two original structure steel columns on two sides.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
the original structure steel column is used as a supporting steel column of the newly-added steel column, the inclined strut extends out of the side face of the supporting steel column, the inclined strut is connected with the herringbone conversion node at the top of each country and the newly-added steel column and used as a foundation of the newly-added steel column, and the inclined strut and the original structure steel column are further connected into a whole by the reinforcing steel beam in the middle of the inclined strut, so that the stability can be ensured. By the node structure and the construction method thereof, the original structural steel column can be used as a support in a high-rise structure to form a foundation of a newly added steel column, so that the change requirement is met, the lower structural foundation does not need to be changed, and the construction period is saved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic view illustrating an effect of a node structure of a new steel column added to an upper structure of a steel structure building according to an embodiment of the present invention.
Fig. 2 is a schematic view illustrating the effect of the herringbone conversion node in the node structure of the newly added steel column in the superstructure of the steel structure building according to the embodiment of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, their indicated orientations or positional relationships are based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The technical solution of the present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1 and 2, fig. 1 is a schematic view illustrating an effect of a node structure of a newly added steel column in a superstructure of a steel structure building according to the present embodiment, and fig. 2 is a schematic view illustrating an effect of a herringbone switching node in the node structure of the newly added steel column in the superstructure of the steel structure building according to the present embodiment.
As shown in fig. 1 and 2, a node structure of a new steel column added to a superstructure of a steel structure building according to an embodiment of the present invention mainly includes: chevron shape conversion node 1, bracing 2 and reinforcement girder steel, reinforcement girder steel further can include the multichannel that sets up along the direction of height interval, and this embodiment is three, by supreme being down in proper order: third reinforcing steel beam 33, first reinforcing steel beam 31, and second reinforcing steel beam 32. The embodiment of the invention aims to solve the problem that no foundation support exists due to the fact that steel columns need to be added to the upper structure of the steel structure building.
The vertical steel column foot 11 that upwards takes shape for supplying to connect newly-increased steel column 4 in chevron shape conversion node 1's top, two stabilizer blade slopes of chevron shape conversion node 1's bottom are formed into two bracing column feet 12 towards two primary structure steel columns 5 of both sides, are connected with two bracing columns 2 between two bracing column feet 12 and the two primary structure steel columns 5 respectively, are connected with first reinforcing steel roof beam 31 between two bracing columns 2 and the primary structure steel column 5 that closes on one side respectively.
Wherein, the equal level of the first reinforcing girder steel 31 between two bracing 2 and between bracing 2 and primary structure steel column 5 sets up and the position is equal height, is located the position that the center of bracing 2 slightly leaned on the lower side, is connected two bracing 2 and primary structure steel column 5 of both sides as an organic whole, guarantees stability.
Further, a second reinforcing steel beam 32 is connected between two sides of the herringbone conversion node 1 and the primary structural steel columns 5 on the corresponding side. The third reinforcing steel beam 33 is connected between the bottoms of the two inclined struts 2, and two ends of the third reinforcing steel beam 33 are respectively connected to the two original structural steel columns 5 on two sides, so that the connection stability between the conversion whole formed by the herringbone conversion node 1 and the inclined struts 2 and the original structural steel columns 5 can be further enhanced.
Furthermore, the side surfaces of the two primary structure steel columns 5 are provided with an inclined column base (not shown in the figure) for connecting the bottom ends of the corresponding inclined struts 2, the inclined column base and the primary structure steel columns 5 are welded into a whole, the inclined column base and the bottom ends of the inclined struts 2 can be connected in a welding or bolt connection mode, for example, a plurality of small steel plates are welded on the peripheral side surfaces of the joints of the inclined column base and the inclined struts 2 in a one-to-one correspondence mode, and the small steel plates are connected through welding or bolt connection. Similarly, the herringbone conversion node 1 is a steel structure, and the small steel plates can be connected between the herringbone conversion node 1 and the newly added steel column 4 and between the herringbone conversion node 1 and the inclined strut 2 in a welding or bolt connection mode. Furthermore, the connection mode is also suitable for connection between each reinforced steel beam and the inclined strut, the herringbone conversion node and the original structural steel column, and besides, direct welding can be adopted between the steel members, so long as the requirement of firm connection is met.
The embodiment of the invention also provides a node construction method for adding a steel column to the superstructure of the steel structure building, which mainly comprises the following steps:
step 1: two inclined struts 2 are arranged between original structure steel columns 5 on two sides of a to-be-installed newly-added steel column 4, the bottom ends of the two inclined struts 2 are respectively fixed on the opposite inner side surfaces of the two original structure steel columns 5, and the top ends of the two inclined struts 2 are close to each other and point to the positions of the newly-added steel columns 5;
step 2: installing a herringbone conversion node 1 at the top ends of the two inclined struts 2, correspondingly connecting two inclined strut column feet 12 at the bottom of the herringbone conversion node 1 with the top ends of the two inclined struts 2 respectively, and vertically and upwards forming a support leg at the top of the herringbone conversion node 1 into a steel column foot 11 for connecting a newly added steel column 4;
and step 3: first reinforcing steel beams 31 are connected between the two inclined struts 2 and the original structural steel column 5 adjacent to one side.
Further, in step 2, the method further comprises the steps of: and connecting second reinforcing steel beams 32 between two sides of the installed herringbone conversion node 1 and the primary structural steel columns 5 on the corresponding sides.
In step 1, the method further comprises the steps of: after finishing being connected with corresponding of two spinal branch daggers 2 and two primary structure steel columns 5, connect the third and consolidate girder steel 33 between the bottom of two spinal branch daggers 2, the both ends of third and consolidate girder steel 33 still connect respectively in two primary structure steel columns 5 of both sides, when primary structure steel column 5's side sets up the batter post foot and connects 2 bottoms of batter brace, the third is consolidated girder steel 33 and is located the handing-over department of batter post foot and the primary structure steel column that corresponds.
The invention relates to a node structure of a newly added steel column in an upper structure of a steel structure building and a construction method thereof. By the node structure and the construction method thereof, the original structural steel column can be used as a support in a high-rise structure to form a foundation of a newly added steel column, so that the change requirement is met, the lower structural foundation does not need to be changed, and the construction period is saved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; the modifications or substitutions do not cause the essence of the corresponding technical solutions to depart from the scope of the technical solutions of the embodiments of the present invention, and are all included in the scope of the present invention.
The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.
Claims (10)
1. The utility model provides a node construction at steel construction building superstructure newly increases steel column which characterized in that: the novel steel column reinforcing structure comprises a herringbone conversion node, wherein a supporting leg at the top of the herringbone conversion node is vertically upwards formed into a column base for connecting a newly added steel column, two supporting legs at the bottom of the herringbone conversion node are inclined towards two original structure steel columns on two sides and are respectively connected with two inclined struts between the original structure steel columns, and a first reinforcing steel beam is connected between the two inclined struts and the original structure steel columns close to one side.
2. The node structure of new steel columns in the superstructure of steel structural building as claimed in claim 1, wherein: the first reinforcing steel beams between the two inclined struts and between the inclined struts and the original structural steel column are equal in height.
3. The node structure of new steel columns in the superstructure of steel structural building as claimed in claim 2, wherein: the first reinforcing steel beam is horizontally arranged at the position below the center of the inclined strut.
4. The node structure of new steel columns in the superstructure of steel structural building as claimed in claim 1, wherein: and second reinforcing steel beams are connected between two sides of the herringbone conversion node and the original structural steel columns on the corresponding sides.
5. The node structure of new steel columns in the superstructure of steel structural building as claimed in claim 1, wherein: and a third reinforcing steel beam is connected between the bottoms of the two inclined struts, and two ends of the third reinforcing steel beam are respectively connected to the two original structure steel columns on two sides.
6. The node structure of new steel columns in the superstructure of steel structural building as claimed in claim 1, wherein: and inclined column feet for connecting the bottom ends of the corresponding inclined struts are arranged on the side surfaces of the two original structure steel columns.
7. The node structure of new steel columns in the superstructure of steel structural building as claimed in claim 1, wherein: the herringbone conversion nodes are of steel structures, and the herringbone conversion nodes are connected with the newly added steel columns, the herringbone conversion nodes are connected with the inclined struts, and the inclined struts are connected with the original structural steel columns through welding or bolts.
8. A node construction method for adding a steel column to an upper structure of a steel structure building is characterized by comprising the following steps:
two inclined struts are arranged between original structure steel columns on two sides of a newly added steel column to be installed, the bottom ends of the two inclined struts are respectively fixed on the opposite inner side surfaces of the two original structure steel columns, and the top ends of the two inclined struts are close to each other and point to the position of the newly added steel column;
installing herringbone conversion nodes at the top ends of the two inclined struts, respectively connecting two support legs at the bottom of the herringbone conversion nodes with the top ends of the two inclined struts, and vertically and upwards forming a support leg at the top of the herringbone conversion nodes into a column base for connecting the newly added steel column;
and connecting first reinforcing steel beams between the two inclined struts and the original structural steel column close to one side.
9. The method of constructing a node of a newly added steel column in a superstructure of a steel structure building according to claim 8, further comprising the steps of: and connecting second reinforcing steel beams between two sides of the installed herringbone conversion node and the original structural steel columns on the corresponding sides.
10. The method of constructing a node of a newly added steel column in a superstructure of a steel structure building according to claim 8, further comprising the steps of: and after the two inclined struts are correspondingly connected with the two original structure steel columns, a third reinforcing steel beam is connected between the bottoms of the two inclined struts, and two ends of the third reinforcing steel beam are respectively connected to the two original structure steel columns on two sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010794106.9A CN111894299A (en) | 2020-08-10 | 2020-08-10 | Node structure of newly-added steel column on upper structure of steel structure building and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010794106.9A CN111894299A (en) | 2020-08-10 | 2020-08-10 | Node structure of newly-added steel column on upper structure of steel structure building and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111894299A true CN111894299A (en) | 2020-11-06 |
Family
ID=73246640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010794106.9A Pending CN111894299A (en) | 2020-08-10 | 2020-08-10 | Node structure of newly-added steel column on upper structure of steel structure building and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111894299A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115559555A (en) * | 2022-12-01 | 2023-01-03 | 北京市第三建筑工程有限公司 | Reconstruction construction method of super high-rise building with crabapple corners |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11152929A (en) * | 1997-11-21 | 1999-06-08 | Shimizu Corp | Earthquake resistant reinforcing method for building of steel frame construction |
| CN103233510A (en) * | 2013-04-24 | 2013-08-07 | 北京工业大学 | Steel truss support capable of windowing and steel truss barrel structure including same |
| CN104612245A (en) * | 2015-02-06 | 2015-05-13 | 东南大学 | Novel high-performance steel-frame structure |
| CN204402128U (en) * | 2014-12-16 | 2015-06-17 | 江苏省电力设计院 | A kind of novel substation framework A type node |
| CN106638959A (en) * | 2016-11-30 | 2017-05-10 | 上海二十冶建设有限公司 | Modularization mounting method for inverted-V-shaped case type steel column |
| CN206233656U (en) * | 2016-11-22 | 2017-06-09 | 邯郸钢铁集团设计院有限公司 | Steel frame mill building structure |
| CN108252230A (en) * | 2018-04-09 | 2018-07-06 | 成都迪万斯科技有限公司 | A kind of road and bridge panel joint reinforcing structure |
| CN110847169A (en) * | 2019-11-26 | 2020-02-28 | 湖北省路桥集团有限公司 | Construction method of steel pipe pile steel trestle |
-
2020
- 2020-08-10 CN CN202010794106.9A patent/CN111894299A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11152929A (en) * | 1997-11-21 | 1999-06-08 | Shimizu Corp | Earthquake resistant reinforcing method for building of steel frame construction |
| CN103233510A (en) * | 2013-04-24 | 2013-08-07 | 北京工业大学 | Steel truss support capable of windowing and steel truss barrel structure including same |
| CN204402128U (en) * | 2014-12-16 | 2015-06-17 | 江苏省电力设计院 | A kind of novel substation framework A type node |
| CN104612245A (en) * | 2015-02-06 | 2015-05-13 | 东南大学 | Novel high-performance steel-frame structure |
| CN206233656U (en) * | 2016-11-22 | 2017-06-09 | 邯郸钢铁集团设计院有限公司 | Steel frame mill building structure |
| CN106638959A (en) * | 2016-11-30 | 2017-05-10 | 上海二十冶建设有限公司 | Modularization mounting method for inverted-V-shaped case type steel column |
| CN108252230A (en) * | 2018-04-09 | 2018-07-06 | 成都迪万斯科技有限公司 | A kind of road and bridge panel joint reinforcing structure |
| CN110847169A (en) * | 2019-11-26 | 2020-02-28 | 湖北省路桥集团有限公司 | Construction method of steel pipe pile steel trestle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115559555A (en) * | 2022-12-01 | 2023-01-03 | 北京市第三建筑工程有限公司 | Reconstruction construction method of super high-rise building with crabapple corners |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111236434B (en) | Layer-penetrating overhanging dense column truss system for large-span large-overhanging high-position conversion and application | |
| CN111894299A (en) | Node structure of newly-added steel column on upper structure of steel structure building and construction method thereof | |
| CN211774549U (en) | Simple and easy erection joint reinforced structure of steel construction for building | |
| CN112227410A (en) | Construction method of special-shaped tower crane foundation | |
| CN217652373U (en) | Super high-rise building roof platform of unloading | |
| CN106930557B (en) | Conjoined structure building | |
| CN214884850U (en) | Outer overhanging large-span arc variable cross-section box type steel beam structure with crossed inner rings | |
| CN211949511U (en) | Aerial cast-in-place structure that encorbelments greatly strides sky combination bearing steel platform | |
| CN211173227U (en) | Steel structure support with reinforcing mechanism for building | |
| CN215666655U (en) | Supporting structure for erecting gantry crane walking rail | |
| CN113431194B (en) | Large-span inclined leg steel pipe truss structure and construction method thereof | |
| CN216444913U (en) | Pass power in existing post and set up tower crane structure between floor | |
| CN216238152U (en) | Prefabricated beam erection temporary buttress platform of variable width bridge | |
| CN216947898U (en) | Cast-in-place arch bridge full hall formula and striding formula sectional support juncture mound horn mouth transition structure | |
| CN214695225U (en) | Bent for bridge support | |
| CN213868566U (en) | Upper chord reinforced-T-shaped combined steel truss | |
| CN218520885U (en) | Steel mesh frame integrally lifting support frame | |
| CN214657169U (en) | Concrete foundation beam | |
| CN217870027U (en) | Bent cap template bracket and built-in fitting connection structure | |
| CN217556697U (en) | Supporting device for construction of cable tower lower cross beam | |
| CN217231910U (en) | Device for erecting multi-section open caisson suspended operation platform | |
| CN214942741U (en) | Roof supports bed-jig | |
| CN217419312U (en) | Beam transporting support system for crossing deep valley curve section | |
| CN217678621U (en) | Foundation structure of standard H-shaped steel tower | |
| CN215407491U (en) | Jig frame for assembling inverted triangular pipe truss in C-shaped stock ground |
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 |