CN115559554A - Construction method for installing newly-added beam colliding with existing beam when supporting structure is excessive - Google Patents
Construction method for installing newly-added beam colliding with existing beam when supporting structure is excessive Download PDFInfo
- Publication number
- CN115559554A CN115559554A CN202211524169.8A CN202211524169A CN115559554A CN 115559554 A CN115559554 A CN 115559554A CN 202211524169 A CN202211524169 A CN 202211524169A CN 115559554 A CN115559554 A CN 115559554A
- Authority
- CN
- China
- Prior art keywords
- steel beam
- newly added
- newly
- original
- added
- 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
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
-
- 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
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C3/08—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders
-
- 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
Abstract
The invention discloses a construction method for installing a newly-added beam colliding with an existing beam when a supporting structure is excessive, and belongs to the technical field of building reconstruction. The invention realizes the hoisting and installation of the newly added steel beam in the narrow space of the existing floor, and has less damage to the existing structure. And the beam hanging and replacing equipment is installed before the newly-added steel beam construction to connect the existing structure, so that the overload and downwarp of the existing beam structure are avoided.
Description
Technical Field
The invention belongs to the technical field of building modification, and particularly relates to a construction method for installing a newly added beam colliding with an existing beam when a supporting roof structure is excessive.
Background
In the construction process of building transformation, after newly-added columns are constructed, newly-added beams need to be installed between the newly-added columns, but the newly-added beams can collide with the existing beams.
The common method is to cut off the floor slab as a whole and then newly build and install a newly added beam, but the method can destroy the structure of the existing floor slab in a large area, so that the load borne by the columns and the floor slab below the floor slab of the floor slab is obviously increased, and a great potential safety hazard is caused.
Disclosure of Invention
The invention aims to provide a construction method for installing a newly added beam colliding with an existing beam when the number of supporting structures is excessive, so as to solve the technical problem.
Therefore, the invention provides a construction method for installing a newly added beam which collides with an existing beam when the number of supporting structures is too large, which comprises the following steps:
s1, positioning according to the positions of an existing outer frame column and a newly-added inclined column, and measuring the initial elevation and the initial deflection value of an original steel beam by taking a prokaryotic core cylinder steel column as a datum point;
s2, brushing fireproof paint and oil paint on the surface of the steel column and the steel beam at the installation area, polishing the steel column and the steel beam cleanly, and forming a groove in the floor slab at the position of the newly added steel beam;
s3, installing beam hanging and replacing equipment between the adjacent newly-added inclined columns, and temporarily connecting the beam hanging and replacing equipment with the original steel beam;
s4, arranging an original steel beam supporting column at the bottom of the original steel beam;
s5, adding original steel Liang Qieduan at the position of the newly added steel beam;
s6, lifting the newly-added steel beam by adopting a beam lifting and replacing device and then placing the newly-added steel beam in place;
s7, welding the newly increased steel beam with the newly increased inclined column, polishing a welding opening and performing flaw detection and paint repair;
s8, welding the newly-added steel beam with the original steel beam;
s9, dismantling the hanging beam and replacing beam equipment and the original steel beam supporting column.
Preferably, the lifting beam changing device comprises:
the supports are arranged on two sides of the newly-added inclined column, one group of supports are positioned at the top of the tie beam between the existing outer frame column and the newly-added inclined column, and the other group of supports are positioned at the top of the original steel beam;
the main cross beams are connected to the tops of the supports, and connecting beams are connected between the main cross beams;
and the hoisting truss is connected to the top of the main cross beam.
Preferably, the method for temporarily connecting the hanging beam replacing equipment with the original steel beam in the step S3 comprises the following steps: and welding a gusset plate at the top of the original steel beam, and connecting the gusset plate with the beam replacing equipment for the hanging beam through a pin shaft.
Preferably, S4 the original steel beam support column is arranged at the bottom of the original steel beam on one side of the newly-added steel beam close to the core barrel.
Preferably, the method for cutting off the original steel beam at the position of the newly added steel beam in S5 comprises the following steps: the method comprises the steps of welding lifting lugs on original steel beams, arranging lifting points on lifting beam replacing equipment, fixing the original steel beams by using a chain block, and adding original steel Liang Qieduan at the positions of the newly added steel beams.
Preferably, after the original steel beam is cut off in S5, before the newly added steel beam is welded with the newly added inclined column in S7, and after the newly added steel beam is welded with the original steel beam in S8, the elevation and the deflection value of the original steel beam are detected, the elevation is adjusted to be the same as the initial elevation by using the original steel beam supporting column and the hanging beam changing device, and the adjusted deflection value is the same as the initial deflection value.
Preferably, the method for lifting the newly-added steel beam by adopting the beam lifting and replacing equipment in the S6 comprises the following steps: and the main beam or the hoisting truss is used as a hoisting point to hoist the chain block so as to lift the newly added steel beam.
Preferably, the welding between the newly-added steel beam and the newly-added oblique column in the S7 is groove full penetration welding, the welding seam is a multilayer multi-pass long welding seam, and the welding seam is a primary welding seam, so that the structural strength is ensured to meet the requirement.
Preferably, the welding method between the newly-added steel beam and the original steel beam in the step S8 is groove full penetration welding, the welding line is a multi-layer multi-pass long welding line, and the welding line is a primary welding line, so that the structural strength is ensured to meet the requirement.
Preferably, 10cm construction joints are reserved on the left side and the right side of the through groove in the S2 respectively.
Compared with the prior art, the invention has the characteristics and beneficial effects that:
(1) According to the invention, the hanging beam replacing equipment is arranged between the newly-added oblique columns, the original steel beam is temporarily hung by the hanging beam replacing equipment, then the original steel beam at the position where the newly-added steel beam is to be installed is cut off, the newly-added steel beam is lifted and positioned by the hanging beam replacing equipment, and finally the newly-added steel beam is welded with the newly-added oblique columns and the newly-added steel beam is welded with the original steel beam. The invention realizes the hoisting and installation of the newly added steel beam in the narrow space of the existing floor, and has less damage to the existing structure. And the beam hanging and replacing equipment is installed before the newly-added steel beam construction to connect the existing structure, so that the overload and downwarp of the existing beam structure are avoided.
(2) When the new oblique outer frame column is constructed, a hole needs to be formed in a floor slab around the new oblique outer frame column, and a large number of supporting structures are arranged below the hole edge sealing beam. And if when the new girder steel is being constructed, a supporting structure is also erected at the bottom of the original girder steel to support the original girder steel, the load above the floor is large, and great potential safety hazards exist. According to the invention, the hanging beam replacing equipment is arranged between the newly added inclined columns, the original steel beam is hung by the hanging beam replacing equipment, the subsequent hoisting work is completed, and the construction safety is ensured.
Drawings
FIG. 1 is a schematic view of a floor slab with a hole;
FIG. 2 is a schematic layout of an original steel beam support column;
FIG. 3 is a schematic diagram of an original steel beam after being broken;
FIG. 4 is a first schematic view of the newly added steel beam;
FIG. 5 is a second schematic view of the newly added steel beam after installation;
FIG. 6 is a schematic view of the device after the beam replacement of the hanging beam is removed;
fig. 7 is a schematic view of a beam replacement apparatus for a lifting beam.
The attached drawings are marked as follows: 1-original steel beam, 2-newly-added steel beam, 3-existing outer frame column, 4-newly-added inclined column, 5-through groove, 6-original steel beam support column, 7-support, 8-main beam, 9-hoisting truss, 10-tie beam and 11-connecting beam.
Detailed Description
The present invention will be further described in order to make the technical means, innovative features, objects and effects of the invention apparent.
The examples described herein are specific embodiments of the present invention, are intended to be illustrative and exemplary in nature, and are not to be construed as limiting the scope of the invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other embodiments that are obvious based on the disclosure of the claims and the specification herein, including those that employ any obvious substitutions and modifications to the embodiments described herein.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships 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 the like 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 is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, 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.
When super high-rise building structure is reforming transform, may face the overall dimension that upper portion was reformed transform partial structure and be less than original structure, consequently former vertical outer frame post need carry out adduction transformation, need be connected newly-increased oblique outer frame post between former vertical outer frame post and newly-increased vertical outer frame post. After the construction of the newly added inclined outer frame columns is completed, newly added steel beams need to be installed between the adjacent newly added inclined outer frame columns. But be connected with original girder steel between procaryon core section of thick bamboo and the former vertical outer frame post, can collide between this original girder steel and the newly-increased girder steel, consequently need break off original girder steel. Before the original girder steel of disconnection, the usual way sets up a structure of propping up on the floor of original girder steel below for hold original girder steel, then at original girder steel disconnection position installation newly-increased girder steel, and be connected between original girder steel and the newly-increased girder steel.
However, when the newly added oblique outer frame column is constructed, a hole needs to be formed in a floor slab around the newly added oblique outer frame column, and a large number of supporting structures are arranged below the hole edge sealing beam. If still set up a roof structure on the floor of original girder steel below this moment, can lead to the load of this floor top very big, have great potential safety hazard.
The invention provides a construction method for installing a newly added beam colliding with an existing beam when the number of supporting structures is excessive, which comprises the following steps:
s1, positioning is carried out according to the positions of an existing outer frame column 3 and a newly-added inclined column 4, and the initial elevation and the initial flexibility value of an original steel beam 1 are measured by taking a prokaryotic core tube steel column as a datum point.
S2, brushing fireproof paint on the surface of the steel column and the steel beam at the installation area position by using an angle grinder, polishing the steel column and the steel beam by using paint, forming a groove 5 in a floor slab at the position of the newly added steel beam 2, and reserving construction joints of 10cm on the left side and the right side of the through groove 5 respectively, as shown in figures 1 and 2.
And S3, installing beam hanging and replacing equipment between the adjacent newly-added inclined columns 4, specifically, fixing two ends of the beam hanging and replacing equipment on the newly-added inclined columns 4, and further connecting the beam hanging and replacing equipment with the newly-added inclined columns 4. The temporary connection method of the beam hanging and replacing equipment and the original steel beam 1 comprises the following steps: and welding a gusset plate at the top of the original steel beam 1, and connecting the gusset plate with the beam replacing equipment of the hanging beam through a pin shaft.
As shown in fig. 7, the hanging beam replacing device comprises a support 7, a main cross beam 8 and a hoisting truss 9. The supports 7 are arranged on two sides of the newly-added batter post 4, one group of supports 7 is positioned on the top of the tie beam 10 between the existing outer frame post 3 and the newly-added batter post 4, and the other group of supports 7 is positioned on the top of the original steel beam 1. The main beams 8 are connected to the tops of the supports 7, and connecting beams 11 are connected between the main beams 8. The hoisting truss 9 is connected to the top of the main beam 8.
And S4, arranging an original steel beam support column 6 at the bottom of the original steel beam 1, as shown in figure 2. Former girder steel support column 6 sets up in the former girder steel 1 bottom that newly-increased girder steel 2 is close to a core section of thick bamboo one side, specifically, former girder steel support column 6 is 1100mm with the interval between newly-increased girder steel 2. Utilize former steel beam support column 6 to replace traditional supporting structure, it is more convenient to install, compares with traditional supporting structure moreover, and this former steel beam support column 6 occupation space is littleer.
And S5, cutting off the original steel beam 1 at the position of the newly added steel beam 2 as shown in figure 3. After the original steel beam 1 is cut off, the elevation and the deflection value of the original steel beam 1 are detected, and then the original steel beam 1 is adjusted by using the original steel beam support column 6 and the hanging beam replacing equipment, so that the elevation of the original steel beam 1 is the same as the initial elevation, and the deflection value is the same as the initial deflection value. The method for cutting off the original steel beam 1 at the position of the newly added steel beam 2 comprises the following steps: the lifting lug is welded on the original steel beam 1, the lifting point is arranged on the beam replacing equipment of the lifting beam, and the original steel beam 1 at the position of the newly added steel beam 2 is cut off after the original steel beam 1 is fixed by the chain block.
And S6, adopting the hanging beam replacing equipment to lift the newly-added steel beam 2 and then placing the newly-added steel beam in place, as shown in figures 4 and 5. The method for lifting the newly-added steel beam 2 by adopting the beam lifting and replacing equipment comprises the following steps: and (4) taking the main beam 8 or the hoisting truss 9 as a hoisting point, and hoisting a chain block to lift the newly-added steel beam 2.
S7, detecting the elevation and the deflection value of the original steel beam 1, adjusting the elevation to be the same as the initial elevation by using the original steel beam supporting column 6 and the hanging beam replacing equipment, and adjusting the deflection value to be the same as the initial deflection value. And then welding the newly added steel beam 2 with the newly added inclined column 4, welding the newly added steel beam 2 with the original steel beam 1, polishing a welding opening, and performing flaw detection and paint repair. The welding between the newly added steel beam 2 and the newly added oblique column 4 is groove full penetration welding, the welding seam is a multilayer multi-pass long welding seam, and the welding seam is a primary welding seam, so that the structural strength is ensured to meet the requirement.
And S8, welding the newly added steel beam 2 with the original steel beam 1. And then, detecting the elevation and the deflection value of the original steel beam 1 to ensure that the elevation is the same as the initial elevation and the deflection value is the same as the initial deflection value. The welding method between the newly-added steel beam 2 and the original steel beam 1 is groove full penetration welding, the welding line is a multilayer multi-pass long welding line, and the welding line is a primary welding line, so that the structural strength is ensured to meet the requirement.
S9, dismantling the hanging beam and beam replacing equipment and the original steel beam supporting column 6, as shown in figure 6.
The above examples are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
Claims (10)
1. A construction method for installing a newly added beam colliding with an existing beam when the number of supporting structures is excessive is characterized by comprising the following steps:
s1, positioning according to the positions of an existing outer frame column (3) and a newly-added inclined column (4), and measuring the initial elevation and the initial deflection value of an original steel beam (1) by taking a prokaryotic core cylinder steel column as a datum point;
s2, brushing fireproof paint and oil paint on the surface of the steel column and the steel beam at the installation area, and polishing the steel column and the steel beam cleanly, and forming a groove (5) in the floor slab at the position of the newly added steel beam (2);
s3, installing beam hanging and replacing equipment between the adjacent newly-added inclined columns (4), and temporarily connecting the beam hanging and replacing equipment with the original steel beam (1);
s4, arranging an original steel beam supporting column (6) at the bottom of the original steel beam (1);
s5, cutting off the original steel beam (1) at the position of the newly added steel beam (2);
s6, lifting the newly-added steel beam (2) by adopting a beam lifting and replacing device and then positioning;
s7, welding the newly-added steel beam (2) with the newly-added inclined column (4), polishing a welding opening, detecting a flaw and repairing paint;
s8, welding the newly added steel beam (2) with the original steel beam (1);
s9, dismantling the hanging beam and replacing beam equipment and the original steel beam supporting column (6).
2. The construction method of installing a newly added beam colliding with an existing beam when there are too many roof structures as claimed in claim 1, wherein the hanging beam replacing apparatus comprises:
the supports (7) are arranged on two sides of the newly added inclined column (4), one group of supports (7) is positioned at the top of the tie beam (10) between the existing outer frame column (3) and the newly added inclined column (4), and the other group of supports (7) is positioned at the top of the original steel beam (1);
the main cross beams (8) are connected to the tops of the supports (7), and connecting beams (11) are connected between the main cross beams (8);
and the hoisting truss (9) is connected to the top of the main beam (8).
3. The construction method for installing the newly added beam colliding with the existing beam when the number of the supporting structures is too large according to claim 1, wherein the method for temporarily connecting the beam replacing equipment of the hanging beam with the original steel beam (1) in S3 is as follows: and (3) welding a gusset plate at the top of the original steel beam (1), and connecting the gusset plate with the beam replacing equipment of the hanging beam through a pin shaft.
4. The construction method of installing a newly added beam colliding with an existing beam when there are too many roof structures according to claim 1, wherein: s4, the original steel beam support columns (6) are arranged at the bottoms of the original steel beams (1) on the sides, close to the core tube, of the newly added steel beams (2).
5. The construction method of installing a newly added beam colliding with an existing beam when there are too many supporting structures according to claim 1, wherein the method of cutting off the original steel beam (1) at the position of the newly added steel beam (2) in S5 is: the lifting lugs are welded on the original steel beam (1), the lifting points are arranged on the beam replacing equipment of the lifting beam, and the original steel beam (1) at the position of the newly added steel beam (2) is cut off after the original steel beam (1) is fixed by using the chain block.
6. The construction method of a newly added beam colliding with an existing beam when the number of the supporting structures is excessive according to claim 1, wherein after the original steel beam (1) is cut off in S5, before the newly added steel beam (2) is welded to the newly added batter post (4) in S7, and after the newly added steel beam (2) is welded to the original steel beam (1) in S8, the elevation and the deflection value of the original steel beam (1) are detected, the elevation is adjusted to be the same as the initial elevation by using the original steel beam supporting column (6) and the beam-hanging exchanging device, and the adjusted deflection value is the same as the initial deflection value.
7. The construction method for installing the newly added beam colliding with the existing beam when the number of the supporting structures is excessive according to claim 2, wherein the method for lifting the newly added steel beam (2) by adopting the beam lifting and replacing equipment in the step S6 comprises the following steps: and the main beam (8) or the hoisting truss (9) is used as a hoisting point to hoist the chain block to lift the newly added steel beam (2).
8. The construction method of the newly added beam which collides with the existing beam when the number of the supporting structures is excessive according to claim 1, wherein the welding between the newly added steel beam (2) and the newly added batter post (4) in S7 is groove full penetration welding, the welding line is a multilayer multi-pass long welding line, and the welding line is a primary welding line, so as to ensure that the structural strength meets the requirements.
9. The construction method of installing a newly added beam colliding with an existing beam when there are too many roof structures according to claim 1, wherein: in the S8, the welding method between the newly-added steel beam (2) and the original steel beam (1) is groove full penetration welding, the welding line is a multilayer multi-pass long welding line, and the welding line is a primary welding line, so that the structural strength is ensured to meet the requirement.
10. The construction method of installing a newly added beam colliding with an existing beam when there are too many roof structures according to claim 1, wherein: and 10cm construction joints are reserved on the left side and the right side of the through groove (5) in the S2 respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211524169.8A CN115559554B (en) | 2022-12-01 | 2022-12-01 | Construction method for installing newly-added beam colliding with existing beam when supporting structure is excessive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211524169.8A CN115559554B (en) | 2022-12-01 | 2022-12-01 | Construction method for installing newly-added beam colliding with existing beam when supporting structure is excessive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115559554A true CN115559554A (en) | 2023-01-03 |
| CN115559554B CN115559554B (en) | 2023-03-24 |
Family
ID=84769691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211524169.8A Active CN115559554B (en) | 2022-12-01 | 2022-12-01 | Construction method for installing newly-added beam colliding with existing beam when supporting structure is excessive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115559554B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101845849A (en) * | 2010-06-22 | 2010-09-29 | 中国建筑第二工程局有限公司 | Large-span steel gallery erected between new building and old building and construction method thereof |
| WO2010128956A2 (en) * | 2009-05-08 | 2010-11-11 | Inci Sengezer | Innovation in building construction technology with pre-fabricated elements |
| CN103321154A (en) * | 2013-06-27 | 2013-09-25 | 中国中铁股份有限公司 | Construction method for integral hoisting of large-span steel trussed beam |
| CN113756200A (en) * | 2021-09-23 | 2021-12-07 | 中铁十一局集团第一工程有限公司 | Construction method for hanging and splicing steel beam on existing upper-span route |
| CN115233960A (en) * | 2022-06-13 | 2022-10-25 | 上海建工一建集团有限公司 | Integral construction platform structure and method for increasing core tube wall in air |
-
2022
- 2022-12-01 CN CN202211524169.8A patent/CN115559554B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010128956A2 (en) * | 2009-05-08 | 2010-11-11 | Inci Sengezer | Innovation in building construction technology with pre-fabricated elements |
| CN101845849A (en) * | 2010-06-22 | 2010-09-29 | 中国建筑第二工程局有限公司 | Large-span steel gallery erected between new building and old building and construction method thereof |
| CN103321154A (en) * | 2013-06-27 | 2013-09-25 | 中国中铁股份有限公司 | Construction method for integral hoisting of large-span steel trussed beam |
| CN113756200A (en) * | 2021-09-23 | 2021-12-07 | 中铁十一局集团第一工程有限公司 | Construction method for hanging and splicing steel beam on existing upper-span route |
| CN115233960A (en) * | 2022-06-13 | 2022-10-25 | 上海建工一建集团有限公司 | Integral construction platform structure and method for increasing core tube wall in air |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115559554B (en) | 2023-03-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114215170B (en) | Lifting method for ultrahigh-altitude giant-suspension multilayer conjoined structure | |
| CN201116267Y (en) | Externally hung supporting device for internally climbing tower crane | |
| CN114134990B (en) | Installation and uninstallation method of large-span overhanging corridor | |
| CN113756501B (en) | Construction method of overhanging aluminum alloy roof | |
| CN115559554B (en) | Construction method for installing newly-added beam colliding with existing beam when supporting structure is excessive | |
| CN112324131B (en) | One-frame dual-purpose large-span stiff beam construction structure and construction method thereof | |
| CN117145051A (en) | High-altitude assembly structure of large-span space broken line truss and construction method | |
| CN113738125B (en) | Construction method for lifting limited-space large-span steel structure of station house under line | |
| CN109138152B (en) | Assembled concrete frame structure | |
| CN112523111A (en) | Steel box girder hoisting and splicing process | |
| CN218786507U (en) | Special lifting appliance for large-tonnage steel truss girder cable-spanning lifting of mountain railway suspension bridge | |
| CN115538812B (en) | Joist post insertion transformation method for hoisting newly-added columns in sections and additionally arranging temporary corbels | |
| CN212893471U (en) | Lifting appliance for T-shaped beam template | |
| CN213836331U (en) | Connecting device for incremental launching construction of bridge | |
| CN220056001U (en) | Lifting appliance for erecting section box girders by using suspension girders | |
| CN115613850B (en) | Construction method for improving joist and inserted column at corner of existing building | |
| CN217711845U (en) | Safe passage device for construction elevator | |
| CN215439253U (en) | Hoist and mount piping lane interfacing apparatus | |
| CN219823408U (en) | Quick accurate hoisting structure of buckling restrained brace component in limited height | |
| CN115637870B (en) | Method for transforming original inclined outer frame column into new vertical outer frame column | |
| CN210214545U (en) | A general hoist device for complicated molding steel structural component | |
| CN217975538U (en) | Install girder steel fixing device in limit for height space | |
| CN220011949U (en) | Support body based on tower crane standard section | |
| CN220014396U (en) | Cantilever structure template scaffold support frame | |
| CN113774864B (en) | Hoisting method for reverse insertion component installation |
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 |