CN112343180A - Foundation bolt pre-embedding deviation processing structure and method - Google Patents
Foundation bolt pre-embedding deviation processing structure and method Download PDFInfo
- Publication number
- CN112343180A CN112343180A CN202011238172.4A CN202011238172A CN112343180A CN 112343180 A CN112343180 A CN 112343180A CN 202011238172 A CN202011238172 A CN 202011238172A CN 112343180 A CN112343180 A CN 112343180A
- Authority
- CN
- China
- Prior art keywords
- steel plate
- foundation
- foundation bolt
- bolts
- transition
- 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
- 238000012545 processing Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 160
- 239000010959 steel Substances 0.000 claims abstract description 160
- 230000007704 transition Effects 0.000 claims abstract description 82
- 238000003466 welding Methods 0.000 claims abstract description 24
- 238000009434 installation Methods 0.000 claims description 14
- 238000011065 in-situ storage Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000013102 re-test Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 238000003672 processing method Methods 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000012937 correction Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 10
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000013003 hot bending Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Images
Classifications
-
- 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
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
-
- 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
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4157—Longitudinally-externally threaded elements extending from the concrete or masonry, e.g. anchoring bolt with embedded head
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a foundation bolt pre-embedded deviation processing structure and method, and relates to the field of steel structure engineering construction. The steel column positioning device comprises an offset foundation bolt, wherein a transition steel plate is arranged on the upper portion of the offset foundation bolt, the transition steel plate is connected with the offset foundation bolt through plug welding, a foundation bolt which is correctly positioned is arranged on the upper portion of the transition steel plate, the foundation bolt which is correctly positioned is connected with the transition steel plate through welding, and a steel column is connected with the foundation bolt which is correctly positioned. According to the offset foundation bolt, the foundation bolt which is correctly positioned is installed again through the transition steel plate, and the steel column base bottom plate is directly connected with the foundation bolt which is correctly positioned, so that the problem of embedded offset of the foundation bolt with the large diameter is solved; meanwhile, the invention has convenient construction, high accuracy and low cost, and can better solve the problem of deviation of the embedded foundation bolt.
Description
Technical Field
The invention relates to the technical field of steel structure engineering construction, in particular to a foundation bolt pre-embedding deviation processing structure and method.
Background
Along with the beginning of a new round of capital construction, more and more industrial plants are under construction, and industrial plant structural style is mostly light steel portal steel frame, and light steel portal steel frame has advantages such as span is big, length is long, simple to operate, construction are quick. The light steel portal steel frame generally adopts a pre-embedded foundation bolt form to position and mount the steel column.
Embedding foundation bolts to serve as a first step of portal steel frame construction, wherein the embedding accuracy directly influences the installation and use of the portal steel frame; in the actual construction process of embedding the foundation bolt, the embedded foundation bolt has certain deviation due to a series of reasons such as field sectional construction, condition limitation, reference axis measurement error, instable installation and fixation and the like. One of the existing methods for processing the offset foundation bolt is to correspondingly adjust the bolt hole positioning of a column base bottom plate according to the offset size of the foundation bolt; and in the other aspect, the offset bolt is adjusted to the design positioning by adopting a hot bending bolt method according to the offset size. The former processing method is not suitable for use when the offset size is too large or the position of a bolt hole of a column base plate is adjusted to find that an anchor bolt collides with a steel column above the column base plate; the latter is not applicable to the case where the offset dimension of the anchor bolt is larger than 1.5 times the diameter of the bolt.
Disclosure of Invention
The invention aims to make up for the defects of the prior art, provides a structure and a method for processing the embedded deviation of foundation bolts, and solves the problems that the embedded deviation of the foundation bolts with large diameters (the diameter is larger than 36 mm) is large in size (the deviation size is larger than 1.5 times of the diameter of the bolts) and cannot be solved by adjusting the positioning of the foundation bolts in the prior art.
The invention is realized by the following technical scheme:
an underground bolt pre-embedding deviation processing structure comprises a plurality of deviation underground bolts, a transition steel plate, a plurality of correct positioning underground bolts and a steel column base bottom plate; the multiple deviation anchor bolts are pre-embedded in-situ anchor bolts, are anchored in the concrete short column or the concrete beam, the other ends of the anchor bolts are exposed, and the deviation of the in-situ anchor bolts after the axial retest can not meet the installation requirement of the steel column; the top ends of the deviation foundation bolts are welded with the transition steel plate, a plurality of through holes for the correct positioning foundation bolts to pass through are formed in the transition steel plate, the correct positioning foundation bolts correspond to the deviation foundation bolts in a one-to-one mode, the lower ends of the correct positioning foundation bolts respectively pass through the through holes in the transition steel plate and stand on the upper end face of the concrete short column or the concrete beam, the correct positioning foundation bolts are in welded connection with the contact position of the transition steel plate, small holes corresponding to the correct positioning foundation bolts are formed in the steel column base bottom plate, and the steel column base bottom plate penetrates through the top ends of the correct positioning foundation bolts and is fixed on the transition steel plate through bolt cover plates and nuts.
And welding and connecting the correctly positioned foundation bolt and the offset foundation bolt below the transition steel plate through a connecting steel plate.
And the size of the transition steel plate is larger than that of the steel column base bottom plate, and the steel column base bottom plate and the transition steel plate are welded in a surrounding mode on four sides.
The transition steel plate is connected with the offset foundation bolt through plug welding, and the thickness and the material of the transition steel plate are the same as those of the steel column base bottom plate.
A foundation bolt pre-embedding deviation processing method comprises the steps of enabling a plurality of deviation foundation bolts, a transition steel plate, a plurality of correct positioning foundation bolts and a steel column base bottom plate to be arranged in a matched mode; the multiple deviation anchor bolts are in-situ anchor bolts with one ends pre-embedded, the anchor bolts are anchored in the concrete short column or the concrete beam, the other ends of the anchor bolts are exposed, and the in-situ anchor bolts are deviated after the axial retest; the specific pre-buried deviation processing method comprises the following steps:
firstly, carrying out secondary axis and elevation retest on the offset foundation bolt, and calculating the offset value of the foundation bolt;
step two, processing and manufacturing a transition steel plate according to the deviation size of the deviation foundation bolt and the position of the foundation bolt which is correctly positioned, wherein the thickness of the transition steel plate is the same as that of the steel column base bottom plate, the size of the transition steel plate is larger than that of the steel column base bottom plate, and holes are formed in the transition steel plate according to the diameter of the foundation bolt which is correctly positioned;
thirdly, cutting off redundant parts of the offset foundation bolts according to the installation elevation of the steel column and the elevation of the concrete short column or the concrete beam, manufacturing correct positioning foundation bolts, and welding and connecting the correct positioning foundation bolts and the transition steel plate before the installation of the transition steel plate;
fourthly, plug welding a transition steel plate which is welded and connected with the correct positioning foundation bolt with the top end of the offset foundation bolt, welding and connecting the correct positioning foundation bolt and the offset foundation bolt on the lower portion of the transition steel plate through a connecting steel plate, wherein the size of the connecting steel plate is determined according to the distance between the correct positioning foundation bolt and the offset foundation bolt, and the thickness of the connecting steel plate is equal to that of the transition steel plate;
step five, completing the installation and correction of the steel column base bottom plate through a bolt cover plate and a nut;
and sixthly, performing surrounding welding on four sides of the steel column base bottom plate and the transition steel plate, wherein the welding line is a single-side fillet welding line.
And the transition steel plate is welded and connected with the correctly positioned foundation bolt in advance.
The correct positioning anchor bolt is welded with the transition steel plate, the length of the correct positioning anchor bolt is comprehensively determined according to the steel column base bottom plate elevation and the concrete column or beam elevation, one end of the correct positioning anchor bolt is erected on the upper surface of the concrete column or beam, the other end of the correct positioning anchor bolt is connected with the steel column, and the correct positioning anchor bolt on the lower surface of the transition steel plate is welded with the deviation bolt through the connecting steel plate.
The invention has the advantages that: according to the invention, the transition steel plate with the same thickness as the column base bottom plate is adopted, the transition steel plate is downwards connected with the offset foundation bolt and upwards connected with the correctly positioned foundation bolt, so that the problems that the offset size of the foundation bolt is large and the offset cannot be processed by adjusting the foundation bolt and the bolt hole of the column base bottom plate are solved, and the method has the advantages of high construction speed, simplicity in operation, cost saving and the like.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of a transition steel plate.
The reference numbers in the figures illustrate: the method comprises the following steps of 1-concrete short column or concrete beam, 2-offset foundation bolt, 3-correct positioning foundation bolt, 4-transition steel plate, 5-nut, 6-steel column base bottom plate, 7-connecting steel plate, 8-bolt cover plate and 9-single-side fillet weld.
Detailed Description
As shown in fig. 1 and 2, an anchor bolt pre-embedding deviation processing structure includes a plurality of deviation anchor bolts 2, a transition steel plate 4, a plurality of correct positioning anchor bolts 3 and a steel column base bottom plate 6; the deviation anchor bolts 2 are pre-embedded in-situ anchor bolts, are anchored in the concrete short column or the concrete beam 1, have the other ends exposed, and are subjected to axial retesting and deviation, so that the installation requirements of the steel column cannot be met; the top ends of the deviation foundation bolts 2 are welded with the transition steel plate 4, a plurality of through holes for the correct positioning foundation bolts 3 to pass through are formed in the transition steel plate 4, the correct positioning foundation bolts 3 correspond to the deviation foundation bolts 2 one to one, the lower ends of the correct positioning foundation bolts 3 respectively pass through the through holes in the transition steel plate 4 and stand on the upper end surface of the concrete short column or the concrete beam 1, the correct positioning foundation bolts 3 are in welded connection with the contact positions of the transition steel plate 4, small holes corresponding to the correct positioning foundation bolts 3 are formed in the steel column base bottom plate 6, the steel column base bottom plate 6 penetrates through the top ends of the correct positioning foundation bolts 3 and is fixed on the transition steel plate 4 through bolt cover plates 8 and nuts 5.
And welding and connecting the correctly positioned foundation bolts 3 and the offset foundation bolts 2 which are positioned below the transition steel plate 4 through a connecting steel plate 7.
The size of the transition steel plate 4 is larger than that of the steel column base bottom plate 6, and the steel column base bottom plate 6 and the transition steel plate 4 are welded in a surrounding mode on four sides.
The transition steel plate 4 is connected with the offset foundation bolt 2 through plug welding, and the thickness and the material of the transition steel plate 4 are the same as those of the steel column base bottom plate.
The deviation anchor bolt 2 is a pre-embedded in-situ anchor bolt, one end of the deviation anchor bolt is anchored on the concrete column or beam 1, the other end of the deviation anchor bolt is exposed, and the deviation of the in-situ anchor bolt after the axial retest can not meet the installation requirement of the steel column.
The correct positioning foundation bolt 3 and the transition steel plate 4 welded connection, correct positioning foundation bolt 3 length is according to 6 elevations of steel column base bottom plate and 1 elevation of concrete column or roof beam and is synthesized and confirmed, correct positioning foundation bolt 3 one end is stood on concrete column or 1 upper surface of roof beam, the other end is connected in steel column base bottom plate 6, the correct positioning foundation bolt 3 that is located 4 lower surface positions of transition steel plate passes through connecting steel plate 7 welded connection with off normal foundation bolt 2.
The specific installation method comprises the following steps:
re-measuring the axis and the elevation of the offset foundation bolt 2 again, and calculating the offset size of the foundation bolt;
processing and manufacturing a transition steel plate 4 according to the size of the offset foundation bolt 2 and the position of the foundation bolt 3, wherein the thickness of the transition steel plate 4 is equal to that of the steel column base plate 6, the size of the transition steel plate 4 is larger than that of the steel column base plate 6 (each side is larger by 3-5 cm), so that the steel column base plate 6 and the transition steel plate 4 are welded in a surrounding mode on four sides, and holes are formed in the transition steel plate 4 according to the diameter of the foundation bolt;
cutting off the redundant parts of the offset foundation bolts 2 according to the installation elevation of the steel column and the elevation of the concrete column or beam 1, manufacturing correct positioning foundation bolts 3, and welding and connecting the correct positioning foundation bolts 3 and a transition steel plate 4 before the installation of the transition steel plate 4;
the transition steel plate 4 welded with the correct positioning foundation bolts 3 is plug-welded with the offset foundation bolts 2, the correct positioning foundation bolts 3 and the offset foundation bolts 2 at the lower parts of the transition steel plate 4 are welded and connected through the connecting steel plate 7, the size of the connecting steel plate 7 is determined according to the distance between the correct positioning foundation bolts 3 and the offset foundation bolts 2, and the thickness of the connecting steel plate 7 is equal to the thickness of the transition steel plate 4;
the steel column is installed and corrected through the foundation bolt cover plate 8 and the screw cap 5;
the steel column base bottom plate 6 and the transition steel plate 4 are welded in a surrounding mode on four sides, and the welding line is a single-side fillet welding line 9.
Claims (5)
1. The utility model provides a buried off normal processing structure of rag bolt, its characterized in that: the steel column foundation slab comprises a plurality of offset foundation bolts, a transition steel plate, a plurality of correct positioning foundation bolts and a steel column foundation slab; the plurality of deviation anchor bolts are pre-embedded in-situ anchor bolts and are anchored in the concrete short column or the concrete beam; the top ends of the deviation foundation bolts are welded with the transition steel plate, a plurality of through holes for the correct positioning foundation bolts to pass through are formed in the transition steel plate, the correct positioning foundation bolts correspond to the deviation foundation bolts in a one-to-one mode, the lower ends of the correct positioning foundation bolts respectively pass through the through holes in the transition steel plate and stand on the upper end face of the concrete short column or the concrete beam, the correct positioning foundation bolts are in welded connection with the contact position of the transition steel plate, small holes corresponding to the correct positioning foundation bolts are formed in the steel column base bottom plate, and the steel column base bottom plate penetrates through the top ends of the correct positioning foundation bolts and is fixed on the transition steel plate through bolt cover plates and nuts.
2. The embedded deviation processing structure of the foundation bolt according to claim 1, characterized in that: and welding and connecting the correctly positioned foundation bolt and the offset foundation bolt below the transition steel plate through a connecting steel plate.
3. The embedded deviation processing structure of the foundation bolt according to claim 1, characterized in that: and the size of the transition steel plate is larger than that of the steel column base bottom plate, and the steel column base bottom plate and the transition steel plate are welded in a surrounding mode on four sides.
4. The embedded deviation processing structure of the foundation bolt according to claim 1, characterized in that: the transition steel plate is connected with the offset foundation bolt through plug welding, and the thickness and the material of the transition steel plate are the same as those of the steel column base bottom plate.
5. A foundation bolt pre-embedding deviation processing method is characterized by comprising the following steps: the steel column foundation slab comprises a plurality of offset foundation bolts, a transition steel plate, a plurality of correct positioning foundation bolts and a steel column foundation slab; the multiple deviation anchor bolts are in-situ anchor bolts with one ends pre-embedded, the anchor bolts are anchored in the concrete short column or the concrete beam, the other ends of the anchor bolts are exposed, and the in-situ anchor bolts are deviated after the axial retest; the specific pre-buried deviation processing method comprises the following steps:
firstly, carrying out secondary axis and elevation retest on the offset foundation bolt, and calculating the offset value of the foundation bolt;
step two, processing and manufacturing a transition steel plate according to the deviation size of the deviation foundation bolt and the position of the foundation bolt which is correctly positioned, wherein the thickness of the transition steel plate is the same as that of the steel column base bottom plate, the size of the transition steel plate is larger than that of the steel column base bottom plate, and holes are formed in the transition steel plate according to the diameter of the foundation bolt which is correctly positioned;
thirdly, cutting off redundant parts of the offset foundation bolts according to the installation elevation of the steel column and the elevation of the concrete short column or the concrete beam, manufacturing correct positioning foundation bolts, and welding and connecting the correct positioning foundation bolts and the transition steel plate before the installation of the transition steel plate;
fourthly, plug welding a transition steel plate which is welded and connected with the correct positioning foundation bolt with the top end of the offset foundation bolt, welding and connecting the correct positioning foundation bolt and the offset foundation bolt on the lower portion of the transition steel plate through a connecting steel plate, wherein the size of the connecting steel plate is determined according to the distance between the correct positioning foundation bolt and the offset foundation bolt, and the thickness of the connecting steel plate is equal to that of the transition steel plate;
step five, completing the installation and correction of the steel column base bottom plate through a bolt cover plate and a nut;
and sixthly, performing surrounding welding on four sides of the steel column base bottom plate and the transition steel plate, wherein the welding line is a single-side fillet welding line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011238172.4A CN112343180A (en) | 2020-11-09 | 2020-11-09 | Foundation bolt pre-embedding deviation processing structure and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011238172.4A CN112343180A (en) | 2020-11-09 | 2020-11-09 | Foundation bolt pre-embedding deviation processing structure and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112343180A true CN112343180A (en) | 2021-02-09 |
Family
ID=74428567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011238172.4A Pending CN112343180A (en) | 2020-11-09 | 2020-11-09 | Foundation bolt pre-embedding deviation processing structure and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112343180A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114033192A (en) * | 2021-12-15 | 2022-02-11 | 中铁九局集团第二工程有限公司 | Accurate pre-buried device of steel construction rag bolt |
| CN114277931A (en) * | 2022-01-07 | 2022-04-05 | 浙江西子联合工程有限公司 | Method for correcting deviation of steel column base node on site |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003313881A (en) * | 2002-04-23 | 2003-11-06 | Marui:Kk | Bolt insertion frame |
| CN201962804U (en) * | 2011-01-12 | 2011-09-07 | 陕西建工集团第六建筑工程有限公司 | Embedded part embedding structure for ultralong device foundation platform |
| CN202090437U (en) * | 2011-05-05 | 2011-12-28 | 黄海燕 | Adjustable steel column socle device |
| EA201001136A1 (en) * | 2010-08-10 | 2012-02-28 | Общество С Ограниченной Ответственностью "Научно-Технический И Экспериментально-Проектный Центр "Аркос" | CONTACT-SCREW JOINT OF REINFORCED CONCRETE COLUMNS |
| CN203868611U (en) * | 2014-05-05 | 2014-10-08 | 广东省工业设备安装公司 | Fixing device of high vibration apparatus |
| CN105256926A (en) * | 2015-11-05 | 2016-01-20 | 深圳市三鑫幕墙工程有限公司 | Board slot type embedded part system |
| CN205742250U (en) * | 2016-06-22 | 2016-11-30 | 中铁第四勘察设计院集团有限公司 | Railway bridge contact net basic off normal device |
| CN208668632U (en) * | 2018-05-10 | 2019-03-29 | 天津杰瑞钛科技有限公司 | A kind of adjustable built-in fitting |
| CN210737579U (en) * | 2019-06-19 | 2020-06-12 | 武汉长江航运规划设计院有限公司 | Steel column base structure capable of being horizontally adjusted |
| CN212053244U (en) * | 2020-03-23 | 2020-12-01 | 中建八局第二建设有限公司 | Simple adjustable support bracket |
-
2020
- 2020-11-09 CN CN202011238172.4A patent/CN112343180A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003313881A (en) * | 2002-04-23 | 2003-11-06 | Marui:Kk | Bolt insertion frame |
| EA201001136A1 (en) * | 2010-08-10 | 2012-02-28 | Общество С Ограниченной Ответственностью "Научно-Технический И Экспериментально-Проектный Центр "Аркос" | CONTACT-SCREW JOINT OF REINFORCED CONCRETE COLUMNS |
| CN201962804U (en) * | 2011-01-12 | 2011-09-07 | 陕西建工集团第六建筑工程有限公司 | Embedded part embedding structure for ultralong device foundation platform |
| CN202090437U (en) * | 2011-05-05 | 2011-12-28 | 黄海燕 | Adjustable steel column socle device |
| CN203868611U (en) * | 2014-05-05 | 2014-10-08 | 广东省工业设备安装公司 | Fixing device of high vibration apparatus |
| CN105256926A (en) * | 2015-11-05 | 2016-01-20 | 深圳市三鑫幕墙工程有限公司 | Board slot type embedded part system |
| CN205742250U (en) * | 2016-06-22 | 2016-11-30 | 中铁第四勘察设计院集团有限公司 | Railway bridge contact net basic off normal device |
| CN208668632U (en) * | 2018-05-10 | 2019-03-29 | 天津杰瑞钛科技有限公司 | A kind of adjustable built-in fitting |
| CN210737579U (en) * | 2019-06-19 | 2020-06-12 | 武汉长江航运规划设计院有限公司 | Steel column base structure capable of being horizontally adjusted |
| CN212053244U (en) * | 2020-03-23 | 2020-12-01 | 中建八局第二建设有限公司 | Simple adjustable support bracket |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114033192A (en) * | 2021-12-15 | 2022-02-11 | 中铁九局集团第二工程有限公司 | Accurate pre-buried device of steel construction rag bolt |
| CN114277931A (en) * | 2022-01-07 | 2022-04-05 | 浙江西子联合工程有限公司 | Method for correcting deviation of steel column base node on site |
| CN114277931B (en) * | 2022-01-07 | 2024-01-02 | 浙江西子联合工程有限公司 | Method for correcting deviation of steel column foot node on site |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109914462B (en) | Positioning support for embedding steel column foundation bolt and construction method | |
| CN112343180A (en) | Foundation bolt pre-embedding deviation processing structure and method | |
| CN108894116B (en) | Prefabricated stand column assembling construction method | |
| CN111946555B (en) | Assembly platform and assembly method for assembly type concrete tower bobbin pipe pieces | |
| CN111997082A (en) | Foundation bolt fixing device and foundation bolt fixing construction method | |
| CN115807508A (en) | Construction method and node for building steel structure column base installation foundation | |
| CN218116533U (en) | Pre-buried bolt crowd high accuracy fixing device of large-scale equipment basis | |
| CN105604085A (en) | Substation frame column footing foundation bolt and mounting method thereof | |
| CN105064681B (en) | Installing method of steel structure foundation screw bolt | |
| CN210597281U (en) | Bridge pile foundation in-situ binding reinforcement cage deviation control die carrier | |
| CN108296661B (en) | Vertical manufacturing method and manufacturing tool for arc-shaped double-layer steel panel structure | |
| CN111622350A (en) | Technological steel structure foundation bolt mounting and positioning device and mounting method | |
| CN220202671U (en) | Square pile positioning device | |
| CN216110014U (en) | Connecting structure for correcting position of steel pipe pole foundation bolt | |
| CN110939830A (en) | Device and method for quickly prefabricating and fixing embedded bolt | |
| CN216380538U (en) | Climb frame and attach wall support pre-buried device | |
| CN114777705B (en) | Nuclear power plant water injection tank foundation bolt installation, measurement and inspection method | |
| CN219794423U (en) | Adjustable reinforcement protection layer controller | |
| CN113872514B (en) | Photovoltaic support upright post fixing device of T-shaped groove preassembling platform and mounting method | |
| CN219908610U (en) | Center positioning device for cable-stayed bridge cable guide pipe | |
| CN220445509U (en) | Track alignment appurtenance and alignment structure take one's place | |
| CN220521101U (en) | Counter-arch adjusting device for bottom die of prestressed highway box girder | |
| CN211949680U (en) | Auxiliary device for ensuring accurate pre-embedding of beam-penetrating sleeve | |
| CN219411914U (en) | Positioning and deviation rectifying device for steel lattice column | |
| CN220889238U (en) | Prefabricated staircase positioning and fixing device |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210209 |
|
| RJ01 | Rejection of invention patent application after publication |