CN109183987B - Butt-joint lug plate node capable of adjusting installation elevation of steel column and using method of butt-joint lug plate node - Google Patents
Butt-joint lug plate node capable of adjusting installation elevation of steel column and using method of butt-joint lug plate node Download PDFInfo
- Publication number
- CN109183987B CN109183987B CN201811009921.9A CN201811009921A CN109183987B CN 109183987 B CN109183987 B CN 109183987B CN 201811009921 A CN201811009921 A CN 201811009921A CN 109183987 B CN109183987 B CN 109183987B
- Authority
- CN
- China
- Prior art keywords
- hole
- column
- plate
- bolt
- variable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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
- E04B1/18—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
- E04B2001/2415—Brackets, gussets, joining plates
-
- 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
- E04B2001/2418—Details of bolting
-
- 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
- E04B2001/2439—Adjustable connections, e.g. using elongated slots or threaded adjustment elements
-
- 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
- E04B2001/246—Post to post connections
Abstract
The invention relates to the field of steel structure multi-section column installation site construction, in particular to a butt joint lug plate node capable of adjusting the installation elevation of a steel column; the method is characterized in that: the device comprises an upper column ear plate, a lower column ear plate, a hole-distance-variable clamping plate and a mounting bolt; four bolt holes are uniformly distributed in the upper column ear plate in the longitudinal direction, and three bolt holes are uniformly distributed in the lower column ear plate; six round holes and one elliptical hole are longitudinally distributed on the variable-pitch clamping plate, and the height of the steel column is adjusted in the installation process of the steel column through the combination of the lug plates, the clamping plate and the bolts; above-mentioned butt joint node all sets up identical connection otic placode and splint on the case post four sides, promptly at every face of case post, all sets up a post otic placode, a lower post otic placode and two variable pitch splint. The invention can ensure that the butt joint ports of the steel columns are completely propped tightly without gaps and without the help of external machines such as a jack and the like.
Description
Technical Field
The invention relates to the field of steel structure multi-section column installation site construction, in particular to a butt joint lug plate node capable of adjusting the installation elevation of a steel column.
Background
In high-rise and multi-storey building steel structures, due to factors such as the hoisting capacity limit, transportation overrun limit, manufacturing condition limit and the like of hoisting machinery, a steel column is generally divided into a plurality of hoisting units for hoisting. When the multi-section steel column is hoisted, the steel column is fixed by using the temporary connecting node after being in place, welded after the elevation, the axis and the verticality are adjusted, and the temporary fixing node is removed after the welding is finished. In the construction process, the settlement of the foundation can generate a negative tolerance of the height of a building, the influence of the settlement on the elevation of the building needs to be closely paid attention to when each section of steel column is installed in a multi-storey and high-rise building, the settlement is compensated by finely adjusting the clearance of the steel column for the joint, and the clearance for the joint needs to be increased generally. According to the standard requirement on elevation deviation, the elevation of the steel column does not need to be accurately and steplessly adjusted, and the 5mm is taken as an adjusting unit, so that the compensation settlement can be realized, and the standard requirement is met. And the interface clearance of more than 10mm is not beneficial to controlling the welding quality.
Disclosure of Invention
The invention aims to overcome the defects and provide the butt-joint lug plate node capable of adjusting the installation elevation of the steel column, so that the settlement is compensated according to the actual construction requirement.
A butt-joint lug plate node capable of adjusting the installation elevation of a steel column comprises an upper column lug plate, a lower column lug plate, a hole pitch variable clamping plate and an installation bolt; four bolt holes are uniformly distributed in the upper column ear plate in the longitudinal direction, and the hole interval is L; three bolt holes are uniformly distributed in the lower column ear plate; six round holes and one elliptical hole are longitudinally distributed on the variable-pitch clamp plate, the distribution intervals of the three round holes at the lower end are equal to the distribution intervals of the three bolt holes on the lug plate of the lower column, the intervals of the round holes in the three round holes at the upper end are respectively L +5mm and L +10mm from bottom to top, the elliptical hole is arranged at the uppermost end, and the height of the steel column in the installation process of the steel column is adjusted through the combination of the lug plate, the clamp plate and the bolt; when the butt joint surfaces of the upper and lower columns are completely tightly propped, the center distance between the bolt holes at the lowermost end of the upper column lug plate and the bolt holes at the uppermost end of the lower column lug plate is equal to the center distance between the third bolt hole and the fourth bolt hole of the clamping plate from bottom to top; the connecting clamping plate is provided with 7 holes, the uppermost end is an elliptical hole, and the rest are round holes, and the elliptical hole can be matched with the upper column lug plate to penetrate a bolt under any combination condition; three circular holes at the uppermost end of the connecting splint meet the requirement of variable pitch, namely the pitch is L +5mm and L +10mm from bottom to top; above-mentioned butt joint node all sets up identical connection otic placode and splint on the case post four sides, promptly at every face of case post, all sets up a post otic placode, a lower post otic placode and two variable pitch splint.
The butt joint otic placode node of adjustable steel column installation elevation, the bolt hole on variable pitch splint upper portion comprises three variable pitch round holes and an elliptical aperture, the bolt hole of lower part comprises the bolt hole of three equidistance equipartition.
The butt joint otic placode node of adjustable steel column installation elevation, after the steel column installation is taken one's place, variable pitch splint penetrate fixedly by three bolts with lower column otic placode, variable pitch splint penetrate fixedly by twice bolt with last column otic placode.
The butt joint otic placode node of adjustable steel column installation elevation, when the upper and lower post was tight zero clearance in top completely, the hole of the fourth hole alignment and the bolt fastening of penetrating of the fourth hole from the top down of upper prop otic placode and variable pitch splint, the hole of the upper prop otic placode and variable pitch splint elliptical hole penetrate the bolt fastening simultaneously.
The butt joint otic placode node of adjustable steel column installation elevation, when upper and lower post clearance 5mm, upper column otic placode from bottom to top second hole and variable pitch splint penetrate the bolt fastening by last third hole down (align and penetrate the bolt fastening, upper column otic placode topmost end hole and variable pitch splint elliptical hole simultaneously.
A butt joint otic placode node of adjustable steel column installation elevation, when upper and lower post clearance 10mm, the third hole of upper prop otic placode from bottom to top aligns and penetrates the bolt fastening with second hole from top to bottom with variable pitch splint, and the hole of upper prop otic placode topmost penetrates the bolt fastening with variable pitch splint elliptical hole simultaneously.
The application method of the butt-joint lug plate node capable of adjusting the installation elevation of the steel column comprises the following steps
Step 1, measuring the elevation of the lower column top according to the actual situation of field installation, and determining whether a butt joint gap is reserved and the size of the gap;
and 4, fastening all bolts.
The invention can ensure that the butt joint of the steel column is completely propped tightly without a gap, the elevation of the upper column is plus 5mm, the butt joint is provided with a gap of 5mm and an elevation of the upper column is plus 10mm, and the butt joint is provided with a gap of 10 mm; the steel column is installed at three installation heights without using external machines such as a jack and the like, and the installation and adjustment are carried out in one step, and the steel column is installed in one step on the basis of the pre-retesting lower column elevation, so that the step of adjusting the steel column elevation is omitted; if the installation elevation needs secondary regulation after the installation is accomplished, only need the cooperation jack, with the corresponding bolt hole of upper ear plate and splint realignment coincidence and penetrate the bolt, need not to use the jack cooperation welding anchor for a long time.
Drawings
Fig. 1 is a schematic view of parts before assembling of a butt-jointed ear plate joint with adjustable steel column installation elevation according to the present invention.
FIG. 2 is a schematic view of the upper and lower steel columns in a gapless condition after installation of the butt-jointed otic placode node with adjustable steel column installation elevation.
FIG. 3 is a schematic view of a 5mm clearance between an upper steel column and a lower steel column after installation of a butt-jointed otic placode node with adjustable steel column installation elevation according to the present invention.
FIG. 4 is a 10mm clearance working condition schematic diagram of the upper and lower steel columns after installation of the butt-jointed otic placode node with adjustable steel column installation elevation of the invention.
Detailed Description
The invention is further illustrated by the following specific examples.
As shown in fig. 1, a butt-joint lug plate node capable of adjusting the installation elevation of a steel column comprises an upper column lug plate 3, a lower column lug plate 1, a variable pitch splint 2 and an installation bolt. Four bolt holes 10, 11, 12 and 13 are uniformly distributed in the upper column ear plate 3 in the longitudinal direction, and the hole distance is L; three bolt holes 4 are uniformly distributed on the lower column ear plate; become 6 round holes 5 of pitch-row splint 2 longitudinal distribution, 7, 8, 9 and an elliptical aperture 6, three 5 three round holes of lower extreme distribution interval with three bolt hole 4 on the lower post otic placode, three round hole 7 of upper end, 8, in 9, round hole 8, 9 centre-to-centre spacing L +5mm, round hole 7, 8 centre-to-centre spacing L +10mm, the top is elliptical aperture 6, through otic placode 1, 3, the combination of splint 2 and bolt, realize the regulatory function of steel column elevation in the steel column installation.
As shown in fig. 1, the bolt hole 13 of the upper stud lug plate 3 and the uppermost bolt hole 4 of the lower stud lug plate 1 are arranged such that the center distance thereof is equal to the center distance between the uppermost bolt hole 5 and the uppermost bolt hole 9 of the clamp plate 2 when the abutting surfaces of the upper and lower studs are fully pressed.
As shown in figure 1, the connecting splint 2 is provided with 7 holes, the uppermost end is provided with an elliptical hole 6, the rest are circular holes, and the elliptical hole 6 can be matched with the upper cylindrical lug plate to penetrate through a bolt under any combination condition.
As shown in FIG. 1, the three circular holes 7, 8, 9 at the uppermost end of the connecting splint 2 should meet the requirement of variable hole pitch, the center distance L +5mm between the circular holes 8, 9, and the center distance L +10mm between the circular holes 7, 8.
As shown in fig. 1, the four sides of the box column of the butt joint are all provided with identical connecting ear plates 1 and 3 and clamping plates 2, that is, each side of the box column is provided with an upper column ear plate 3, a lower column ear plate 1 and two hole-distance-variable clamping plates 2. The invention has been described in relation to only one of its aspects.
As shown in figure 1, the bolt holes at the upper part of the variable-pitch splint 2 consist of three variable- pitch round holes 6, 7 and 8 and an elliptical hole 6, and the bolt holes at the lower part consist of three bolt holes 5 which are uniformly distributed at equal intervals.
As shown in fig. 1, 2, 3 and 4, after the steel column is installed in place, the variable-pitch clamp plate 2 and the lower lug plate 1 are fixed by three bolts 14, and the variable-pitch clamp plate 2 and the upper lug plate 3 are fixed by two bolts 15 and 16.
As shown in fig. 1 and 2, when the upper and lower columns are completely tightly pushed without clearance, the bolt holes 13 of the upper column lug plate 3 are aligned with the bolt holes 9 of the variable pitch clamp plate 2 and fixed by passing bolts 16, and the bolt holes 10 of the upper column lug plate 3 are fixed by passing bolts through the oval holes 6 of the variable pitch clamp plate 2.
As shown in fig. 1 and 3, when the upper and lower column gaps are 5mm, the bolt holes 12 of the upper column lug plate 3 are aligned with the bolt holes 8 of the variable pitch clamp plate 2 and fixed by passing bolts 16, and the bolt holes 10 of the upper column lug plate 3 and the elliptical holes 6 of the variable pitch clamp plate 2 are fixed by passing bolts.
As shown in fig. 1 and 4, when the upper and lower column gaps are 10mm, the bolt holes 11 of the upper column lug plate 3 are aligned with the bolt holes 7 of the variable pitch clamp plate 2 and fixed by passing bolts 16, and the bolt holes 10 of the upper column lug plate 3 and the elliptical holes 6 of the variable pitch clamp plate 2 are fixed by passing bolts.
As shown in fig. 1, 2, 3 and 4, a method for using a butt-jointed lug plate node capable of adjusting the installation elevation of a steel column includes:
step 1, measuring the elevation of the lower column top according to the actual situation of field installation, and determining whether a butt joint gap is reserved and the size of the gap;
and 4, fastening all the bolts 14, 15 and 16.
The invention discloses a steel structure multi-section general assembly type reinforcing device and a using method thereof, and has the following advantages:
(1) the steel column butt joint can be installed at three installation heights of completely jacking (no gap is reserved), upper column elevation +5mm (a gap of 5mm is reserved for the butt joint), and upper column elevation +10mm (a gap of 10mm is reserved for the butt joint), without using external machines such as a jack and the like, the installation and adjustment are carried out in one step, and the steel column butt joint is installed in place once on the basis of measuring the lower column elevation in advance, so that the step of adjusting the elevation of the steel column is omitted, the construction quality is improved, and the construction time is saved;
(2) if the installation elevation needs secondary regulation after the installation is accomplished, only need the cooperation jack, with the corresponding bolt hole of upper ear plate and splint realignment coincidence and penetrate the bolt, need not to use the jack cooperation welding anchor for a long time. The turnover utilization rate of the construction machine is improved, and the construction efficiency is improved.
Claims (5)
1. The utility model provides a butt joint otic placode node of adjustable steel column installation elevation, characterized by: the device comprises an upper column ear plate, a lower column ear plate, a hole-distance-variable clamping plate and a mounting bolt; four bolt holes are uniformly distributed in the upper column ear plate in the longitudinal direction, and the hole interval is L; three bolt holes are uniformly distributed in the lower column ear plate; six round holes and one elliptical hole are longitudinally distributed on the variable-pitch clamp plate, the distribution intervals of the three round holes at the lower end are equal to the distribution intervals of the three bolt holes on the lug plate of the lower column, the intervals of the round holes in the three round holes at the upper end are respectively L +5mm and L +10mm from bottom to top, the elliptical hole is arranged at the uppermost end, and the height of the steel column in the installation process of the steel column is adjusted through the combination of the lug plate, the clamp plate and the bolt; when the butt joint surfaces of the upper and lower columns are completely tightly propped, the center distance between the bolt holes at the lowermost end of the upper column lug plate and the bolt holes at the uppermost end of the lower column lug plate is equal to the center distance between the third bolt hole and the fourth bolt hole of the clamping plate from bottom to top; the hole-distance-variable clamping plate is provided with 7 holes, the uppermost end is an elliptical hole, and the rest are circular holes, and the elliptical holes can be matched with the upper column lug plate to penetrate through bolts under any combination condition; the butt joint node all sets up identical connection otic placode and variable pitch splint on the case post four sides, all sets up an upper prop otic placode, a lower prop otic placode and two variable pitch splint on every side of case post promptly.
2. The adjustable steel column installation elevation butt-joint lug plate node as claimed in claim 1, wherein: after the steel column is installed in place, the hole-distance-variable clamping plate and the lower column ear plate are fixed through penetration of three bolts, and the hole-distance-variable clamping plate and the upper column ear plate are fixed through penetration of two bolts.
3. The adjustable steel column installation elevation butt-joint lug plate node as claimed in claim 1, wherein: when the upper column and the lower column are completely tightly propped without a gap, the hole at the lowest end of the upper column ear plate is aligned with the hole-distance-variable clamping plate through the fourth hole from top to bottom and is fixed by penetrating a bolt, and meanwhile, the hole at the highest end of the upper column ear plate is fixed by penetrating a bolt through the elliptical hole of the hole-distance-variable clamping plate.
4. The adjustable steel column installation elevation butt-joint lug plate node as claimed in claim 1, wherein: when the upper and lower column gaps are 5mm, the second hole of the upper column ear plate from bottom to top and the third hole of the variable pitch splint from top to bottom are aligned and penetrated into the bolt for fixation, and meanwhile, the hole at the uppermost end of the upper column ear plate and the elliptical hole of the variable pitch splint are penetrated into the bolt for fixation.
5. The abutting lug plate node capable of adjusting the installation elevation of the steel column according to claim 1, wherein: when the gap between the upper column and the lower column is 15mm, the third hole of the upper column ear plate from bottom to top is aligned with the second hole of the variable-pitch splint from top to bottom and fixed by a bolt, and simultaneously, the hole at the uppermost end of the upper column ear plate is fixed by a bolt penetrating through the elliptical hole of the variable-pitch splint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811009921.9A CN109183987B (en) | 2018-08-31 | 2018-08-31 | Butt-joint lug plate node capable of adjusting installation elevation of steel column and using method of butt-joint lug plate node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811009921.9A CN109183987B (en) | 2018-08-31 | 2018-08-31 | Butt-joint lug plate node capable of adjusting installation elevation of steel column and using method of butt-joint lug plate node |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109183987A CN109183987A (en) | 2019-01-11 |
| CN109183987B true CN109183987B (en) | 2021-03-26 |
Family
ID=64917556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811009921.9A Active CN109183987B (en) | 2018-08-31 | 2018-08-31 | Butt-joint lug plate node capable of adjusting installation elevation of steel column and using method of butt-joint lug plate node |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109183987B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112502451A (en) * | 2020-11-06 | 2021-03-16 | 上海建工二建集团有限公司 | Device for preventing stiff column from connecting deviation |
| CN112609575B (en) * | 2020-11-19 | 2022-06-14 | 中铁二局集团有限公司 | Steel pipe column alignment structure and steel pipe column alignment method |
| CN112709329B (en) * | 2020-12-28 | 2022-07-22 | 浙江精工钢结构集团有限公司 | Steel column butt joint installation triaxial adjusting device and construction method thereof |
| CN112575896B (en) * | 2020-12-29 | 2022-03-29 | 中铁三局集团建筑安装工程有限公司 | Complex steel reinforced concrete composite structure and construction method |
| CN115030310B (en) * | 2022-06-24 | 2023-09-29 | 洛阳万乐钢结构工程有限公司 | Steel construction beam column and concatenation subassembly thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906849A (en) * | 2010-07-14 | 2010-12-08 | 中建钢构有限公司 | Connecting device of steel column butt joint and installing method |
| CN202299464U (en) * | 2012-02-16 | 2012-07-04 | 山东锦城钢结构有限责任公司 | Steel column rapid hoisting and in-position correcting device |
| CN203330607U (en) * | 2013-05-29 | 2013-12-11 | 中建钢构江苏有限公司 | On-site butt joint connection and location device for construction steel structure box type section steel column |
| JP2017137697A (en) * | 2016-02-03 | 2017-08-10 | 野村 恭三 | Column or beam structure |
| CN105735471A (en) * | 2016-02-17 | 2016-07-06 | 浙江远大钢构实业有限公司 | Connecting structure for steel-structure box columns |
-
2018
- 2018-08-31 CN CN201811009921.9A patent/CN109183987B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109183987A (en) | 2019-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109183987B (en) | Butt-joint lug plate node capable of adjusting installation elevation of steel column and using method of butt-joint lug plate node | |
| US10851537B2 (en) | Assemblable structural column joint connection using fiber-reinforced concrete filled round double steel tubes and mounting method thereof | |
| CN109706931B (en) | Design and construction method for side formwork of thick and large concrete structure | |
| CN113550431B (en) | Annular steel plate type stirrup for beam column joint area of stiff structure and construction method of annular steel plate type stirrup | |
| CN110630015A (en) | Large-span steel bar truss floor support plate assembled support and construction method | |
| CN109702387B (en) | Method for manufacturing steel structure of tower column lining of cable-stayed bridge | |
| CN213741552U (en) | Roof rooting suspender suspension type multilayer air corridor | |
| CN220014085U (en) | Construction structure for installation of building friction pendulum vibration isolation support | |
| CN206495329U (en) | Adjustable accurately foot bolt reinforces mould and hardened system | |
| CN209907886U (en) | Adjustable assembled stair construction platform | |
| CN211496513U (en) | Socket joint formula elevator frame post node device | |
| CN212427537U (en) | Assembled steel construction building fixed establishment | |
| CN114086665A (en) | Connecting construction method for steel bars in beam column joint area of section steel composite structure | |
| CN210263384U (en) | Connecting joint of reinforced concrete conversion column wrapped reinforced concrete conversion beam | |
| CN104018682A (en) | Method based on implementation of splicing of steel reinforced column on construction site | |
| CN103615058A (en) | Constraint steel plate structure of super high-rise steel plate concrete shear wall and construction method thereof | |
| CN210289158U (en) | Temporary support device for connecting laminated plate with beam or wall | |
| CN214462738U (en) | Butt joint section steel column stagger correction device | |
| CN212270700U (en) | Bent cap staple bolt mounting platform | |
| CN110593559A (en) | Concrete beam formwork supporting device and construction process thereof | |
| CN111005591A (en) | Support frame for wafer plate and mounting method thereof | |
| CN215948678U (en) | Concrete double-T plate prefabricated member | |
| CN217027510U (en) | Accurate adjusting device is used in steel column butt joint | |
| CN220301864U (en) | Superimposed sheet strutting arrangement | |
| CN220521544U (en) | Connecting structure for concrete column and large-span beam body |
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 |