CN112376704A - Bolt mounting and fixing frame and construction method thereof - Google Patents
Bolt mounting and fixing frame and construction method thereof Download PDFInfo
- Publication number
- CN112376704A CN112376704A CN202010714790.5A CN202010714790A CN112376704A CN 112376704 A CN112376704 A CN 112376704A CN 202010714790 A CN202010714790 A CN 202010714790A CN 112376704 A CN112376704 A CN 112376704A
- Authority
- CN
- China
- Prior art keywords
- bolt
- fixedly connected
- rod
- support
- vertical rod
- 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
- 238000010276 construction Methods 0.000 title claims abstract description 25
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 25
- 238000009434 installation Methods 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims description 6
- 238000013102 re-test Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 11
- 239000010959 steel Substances 0.000 abstract description 11
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000007306 turnover Effects 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
- E04B1/4157—Longitudinally-externally threaded elements extending from the concrete or masonry, e.g. anchoring bolt with embedded head
-
- 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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/18—Adjusting tools; Templates
- E04G21/1841—Means for positioning building parts or elements
-
- 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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/18—Adjusting tools; Templates
- E04G21/1841—Means for positioning building parts or elements
- E04G21/185—Means for positioning building parts or elements for anchoring elements or elements to be incorporated in the structure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention relates to a bolt installation fixing frame, which comprises an inner support arranged in a bolt arrangement area, wherein the bottom of the inner support is fixedly connected with a lower layer of steel bars, a fixed bolt is welded on the inner support, the lower end of the outer support is fixedly connected with the top of a structural column below the bolt arrangement area, the top of the inner support and the top of the outer support are connected into a whole through a connecting rod to support a frame, and the construction method of the bolt installation fixing frame comprises the following steps: 1) pouring the structural column part below the construction platform to the height of the bottom of the beam bottom plate, fixing a second vertical rod on the top of the structural column, and adding a cross beam to form an outer support; 2) the first upright stanchion is welded with the lower layer of reinforcing mesh, and a cross bar is additionally arranged to form a groined inner support; 3) the lower part of the bolt is fixedly connected with the lower layer cross rod, and the upper part of the bolt is fixedly connected with the upper layer cross rod; 4) the outer support is fixedly connected with the top of the inner support through a connecting rod; 6) the double-fixing system has no force transmission connection with the upper layer of the reinforcing mesh, is small in disturbance, and avoids bolt deviation.
Description
Technical Field
The invention relates to a bolt fixing technology in constructional engineering, in particular to a bolt mounting and fixing frame and a using method thereof.
Background
As is well known, in the field of metallurgical construction, particularly in rolling lines, heating furnaces and bar and wire rods, the number of embedded bolts is large and reaches ten thousand. The general length method is that angle steel (or other section steel) is used as a support, the lower part of the support is welded with the lower layer of reinforcing mesh, and the upper part of the support is welded with the upper layer of reinforcing mesh, but the bolt installation pre-embedding precision is reduced due to the fact that the upper layer of reinforcing mesh is disturbed easily. Wherein the high lines, the big rods, the medium and small rods and the like are all of an overground frame platform structure, and the bolts in the cooling bed area, the transverse moving platform area and the like are all arranged in rows and in groups in a modularized way. The accuracy of thousands of directly buried bolts is often the key point of control, and the standard stipulates that the deviation of the mounting center of the bolt is not more than 2 mm. Statistics shows that the deviation of the bolt is 5-10% within 2 mm and is controlled to be about 50% within 2 mm, about 40% within 2-5 mm, and the deviation of the bolt is 5-10% above 5 mm, and the bolt with the deviation above 5 mm is usually required to be chiseled and re-buried or re-welded.
The important reasons for this error are: firstly, the rigidity of the upper layer steel mesh is small during the operation of workers, so that deformation and shaking are generated; secondly, the existing bolt fixing support is small in fixing foundation and not firm, and generates certain lateral pressure on the bolt and the support when concrete is poured, so that support deviation is easily generated, and displacement of the bolt is caused. The secondary treatment of the bolt with larger error not only increases the cost, wastes time and labor and is not environment-friendly, but also influences the construction quality.
Disclosure of Invention
The invention aims to solve the technical problem that the position of a bolt in the prior art is displaced in construction.
In order to solve the above problems, the present invention provides a novel bolt fixing structure, which has the following specific technical scheme:
a bolt mounting and fixing frame comprises first vertical rods arranged in a bolt arrangement area, wherein the bottoms of the first vertical rods are fixedly connected with lower-layer steel bars, upper and lower layers of cross rods are fixedly connected between the adjacent first vertical rods, bolts are welded on the upper and lower layers of cross rods, the bolt mounting and fixing frame also comprises second vertical rods, the lower ends of the second vertical rods are fixedly connected to the top of a structural column below the bolt arrangement area, and the upper ends of the adjacent second vertical rods are fixedly connected through cross beams; and the second vertical rod or the cross beam is fixedly connected with the adjacent first vertical rod through a connecting rod.
According to the bolt fixing scheme provided by the invention, the bolt fixing mode is a double-layer reinforcing system, the fixing basis of the fixing system is the structural column and the lower layer reinforcing mesh, compared with the original structure for fixing the bolt and the upper layer reinforcing mesh, the structure is slightly disturbed, the bolt deviation is effectively avoided, and the fixing frame is high in rigidity and firm in fixing.
And the adjacent second vertical rods are fixedly connected through inclined supports.
The second vertical rod is arranged at the corner position of the structural column.
The construction method for installing the fixing frame by the bolts comprises the following steps:
1) and the structural column part below the construction platform is poured to the height of the bottom of the beam bottom plate, and then a second vertical rod is fixed at the top of the structural column.
2) And the cross beam is used for fixedly connecting the adjacent second vertical rods to form an outer support, and the cross beam and the second vertical rods are connected to form an included angle to form an inclined support.
3) The first vertical rods and the cross rods are welded into a # -shaped inner support, and the lower ends of the first vertical rods of the # -shaped inner support are welded with the lower layer of reinforcing mesh on the construction platform.
4) After the elevation is corrected, the lower part of the bolt is fixedly connected with the lower layer cross rod, the upper part of the bolt is fixedly connected with the upper layer cross rod, after the bolt is installed and fixed, the bolt is checked and retested, and the precision error is controlled within the standard.
5) And fixedly connecting the outer support obtained in the second step with the top of the inner support obtained in the third step through a connecting rod.
6) And pouring concrete, and dismantling the inner support and the outer support for fixing the bolts.
The method has the advantages that the construction of the supporting frame is simple, the operation is easy, the subsequent construction is not influenced, the welding operation is reduced, the better bolt fixing effect is achieved, the bolt adjusting work caused by bolt deviation is saved, and the normal propulsion of the later construction is facilitated.
Drawings
FIG. 1 is an elevational view of a support structure of the present invention;
fig. 2 is a top view configuration of the present invention.
In the figure: structure post 1, roof beam 2, lower floor's reinforcing bar net piece 3, upper reinforcing bar net piece 4, second pole setting 5, connecting rod 6, first pole setting 7, horizontal pole 8, bolt 9, crossbeam 10.
Detailed Description
According to the bolt fixing scheme provided by the invention, the bolt fixing mode is a double-layer reinforcing system. The bolt mounting and fixing frame comprises first vertical rods arranged in a bolt arrangement area, wherein the bottoms of the first vertical rods are fixedly connected with lower-layer steel bars, an upper layer of transverse rod and a lower layer of transverse rod are fixedly connected between the adjacent first vertical rods, bolts are welded on the upper layer of transverse rod and the lower layer of transverse rod, the bolt mounting and fixing frame also comprises second vertical rods, the lower ends of the second vertical rods are fixedly connected to the top of a structural column below the bolt arrangement area, and the upper ends of the adjacent second vertical rods are fixedly connected through cross beams; and the second vertical rod or the cross beam is fixedly connected with the adjacent first vertical rod through a connecting rod.
In the support structure, the first vertical rod, the second vertical rod and the upper layer of the reinforcing mesh are not connected and are completely separated. Therefore, the deformation of the upper layer steel disc net piece in the construction process can not generate lateral pressure on the support structure.
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and 2, for example, four first vertical rods 7 are fixedly connected to form a groined inner support through cross rods 8, and four second vertical rods 5 are fixedly connected to form an outer fixed frame through cross beams 10. In this embodiment, the inner frame and the outer frame are fixedly connected to each other. A double bracket fixing and supporting structure is formed. In the embodiment, the mutual positions of the vertical rods can form standard formation, the adjacent rod pieces are sequentially connected, if the vertical rods are distributed more complexly, the adjacent or nonadjacent support rods can be connected by the cross beam, and the final purpose is to obtain a stable support structure.
In the invention, the frame combined by the first upright stanchion 7 and the connecting cross rod 8 thereof is used for welding the bolt 9, and the position of the bolt 9 is set. The first vertical rod 7 can be fixedly connected with the lower layer steel mesh 3 and can also be embedded in a corresponding foundation at the lower part. In this example, four first uprights 7 are provided, which can be connected by four cross bars 8. The upper part of the bolt 9 is welded with the upper layer cross bar 8, and the lower part is welded with the lower layer cross bar 8. The second vertical rod 5 is fixedly connected with the structural column 1, and the vertical rods are connected through a large cross beam, in the practical example, the second vertical rod 5 and the cross beam 10 form a square outer support, and the square outer support is more stable by taking the structural column 1 as a fixed foundation. The outer support is connected with the inner support through a connecting rod 6, the connecting rod 6 is fixedly connected between a cross rod 8 and a cross beam 10, or between a first vertical rod 7 and a second vertical rod 5, or between the first vertical rod 7 and the cross beam 10, so as not to influence later construction.
The mounting included angle between the second vertical rod 5 and the cross beam 10 can be supported and reinforced obliquely. An inclined support reinforcing structure is additionally arranged between the second vertical rod and the second vertical rod.
The construction method for installing the fixing frame by the bolts comprises the following specific operation steps by combining the following drawings 1 and 2:
the first step is as follows: pouring the structural column part below the region with a large number of bolts above the platform
The column part below the concrete pouring construction platform is poured to the height of the bottom surface of the beam 2 (the part without the beam body structure takes the elevation of the bottom plate of the upper structure as the reference), and then a second vertical rod 5 is arranged at the top of the column. The second vertical rod 5 can be angle steel which is arranged at the corner of the structural column 1 or is arranged at a position which does not influence pouring construction according to the distance between the beam and the steel bars.
The second step is that: system for arranging fixed frame
The second vertical rods 5 are connected through the section steel cross beams 10, and inclined supports are arranged at connecting included angles of the connecting cross beams 10 and the second vertical rods 5 to form a horizontal fixed frame system.
The third step: mounting bolt fixing support
First pole setting 7 and horizontal pole 8 welding are the groined type mount, and 7 lower extremes of first pole setting and the welding of landing slab lower floor reinforcing bar net piece 3. The mount all does not have the relation of connection with upper reinforcing bar net piece 4, forms independent system on the landing slab, avoids upper reinforcing bar net piece 4 to produce the influence to the mount when squinting because of receiving the disturbance. In the scheme, an upper layer of cross rod 8 and a lower layer of cross rod 8 are arranged between the first vertical rods 7.
The fourth step: fixing bolt and bolt retest
The bolt 9 is fixedly connected with the cross rod 8 of the first vertical rod, and after the installation and fixation, the acceptance and retest is carried out, and the precision error is controlled within the specification. When the elevation is corrected, the lower part of the bolt 9 is fixedly connected with the lower layer cross rod 8, and the upper part of the bolt is fixedly connected with the upper layer cross rod. In this scheme, adopt welded fastening.
The fifth step: bolted joint
And connecting the # -shaped fixing frame in the third step with the frame system on the structural column at the top through a connecting rod 6. The cross rod 8 is connected with the cross beam 10 through the connecting rod, and the first vertical rod is connected with the cross beam through the connecting rod 6, so that a double fixing bolt support system independent of the second layer of reinforcing mesh is formed.
And a sixth step: and pouring concrete, and removing the bolt support and the fixed frame.
The traditional bolt fixing construction causes labor and cost loss and the invention has the advantages that:
in the traditional construction, for example, about 1 ten thousand directly-buried bolts are used for a bar, and about 1000 bolts are required to be adjusted if the proportion of the bolts with errors exceeding 5 millimeters is 10% after the construction is finished according to the method that the conventional bolts are fixed on a reinforcing mesh sheet or a common pre-buried bracket. The cutting is carried out according to the original adjusting mode and then the bending or the single-sided and double-sided welding treatment is carried out, wherein 20 pieces are treated by 2 persons in one group every day, and about 1000 pieces/20 pieces 2 working days are required to be 100 working days. Labor cost: 300 yuan/day (market price). Economic benefits are as follows: labor cost: 300 x 100 x 30000 x. The above costs do not include material costs and mechanical costs, and only bolts exceeding 5 mm are handled, and when the equipment installation accuracy is high, it is necessary to strictly control them within the specifications, and the reprocessing of the out-of-tolerance part not only delays the construction period but also increases the cost for handling.
According to the bolt fixing scheme provided by the invention, the bolt fixing mode is a double-layer reinforcing system, and the fixing foundation of the fixing system is a structure column and a lower layer reinforcing mesh which are both of a structure with small disturbance. The fixed mount has high rigidity and is firmly fixed. The outer mount can repeated turnover utilization, green. Simultaneously, the concrete post plays the stable supporting role to platform beam slab, reduces the whole disturbance and the displacement of platform greatly, is showing the installation accuracy who improves the bolt.
The fixing frame for mounting the fixing bolt and the upper layer reinforcing mesh are in a separated state and are independent to form a system, and the system is not influenced by the load of the upper layer reinforcing mesh.
The bolt mounting accuracy is obviously improved, and the bolt mounting structure has an obvious effect on bolt groups which are uniformly and regularly distributed in the longitudinal direction and the transverse direction.
Claims (5)
1. The utility model provides a bolt installation mount, includes the first pole setting of setting in the bolt setting region, first pole setting bottom and lower floor's reinforcing bar rigid coupling, upper and lower two-layer horizontal pole of rigid coupling between the adjacent first pole setting, welding bolt, characterized by on the upper and lower two-layer horizontal pole: the lower end of each second vertical rod is fixedly connected to the top of the structural column below the bolt arrangement area, and the upper ends of every two adjacent second vertical rods are fixedly connected through a cross beam; and the second vertical rod or the cross beam is fixedly connected with the adjacent first vertical rod through a connecting rod.
2. The bolt-mounting fixture as claimed in claim 1, wherein: and an inclined support is arranged at the fixed connection included angle position of the second vertical rod and the cross beam.
3. The bolt-mounting fixture as claimed in claim 2, wherein: and the adjacent second vertical rods are fixedly connected through inclined supports.
4. The bolt-mount fixture as claimed in claim 3, wherein: the second vertical rod is arranged at the corner position of the structural column.
5. The construction method of the bolt installation fixing frame as claimed in the preceding claim is carried out according to the following steps:
1) pouring the structural column part below the construction platform to the height of the bottom of the beam bottom plate, and fixing a second upright on the top of the structural column;
2) fixedly connecting each adjacent second vertical rod by using a cross beam to form an outer support, wherein an inclined support is arranged at the connection included angle between the cross beam and the second vertical rod;
3) the first upright posts and the cross rods are welded into a # -shaped inner support, and the lower ends of the first upright posts of the # -shaped inner support are welded with a lower layer reinforcing mesh on the construction platform;
4) after the elevation is corrected, the lower part of the bolt is fixedly connected with the lower layer cross rod, the upper part of the bolt is fixedly connected with the upper layer cross rod, and after the bolt is installed and fixed, the acceptance and retest is carried out, and the precision error is controlled within the specification;
5) fixedly connecting the outer support obtained in the second step with the top of the inner support obtained in the third step through a connecting rod;
6) and pouring concrete, and dismantling the inner support and the outer support for fixing the bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010714790.5A CN112376704B (en) | 2020-07-23 | 2020-07-23 | Bolt mounting fixing frame and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010714790.5A CN112376704B (en) | 2020-07-23 | 2020-07-23 | Bolt mounting fixing frame and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112376704A true CN112376704A (en) | 2021-02-19 |
| CN112376704B CN112376704B (en) | 2024-07-09 |
Family
ID=74586025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010714790.5A Active CN112376704B (en) | 2020-07-23 | 2020-07-23 | Bolt mounting fixing frame and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112376704B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898193A (en) * | 2021-10-28 | 2022-01-07 | 中国二十二冶集团有限公司 | Installation construction method for bolts in platform beam plate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203247603U (en) * | 2013-05-29 | 2013-10-23 | 中国建筑第二工程局有限公司 | High-order rag bolt positioner |
| CN105544587A (en) * | 2015-12-10 | 2016-05-04 | 上海建工一建集团有限公司 | Combined tower crane foundation and construction method thereof |
| CN206034931U (en) * | 2016-08-21 | 2017-03-22 | 中国十九冶集团有限公司南京分公司 | Locating rack of firmware installation accuracy is watered in assurance |
| CN108589766A (en) * | 2018-05-09 | 2018-09-28 | 五冶集团上海有限公司 | Bolt location structure and di rect-buried bolt accuracy control method |
| CN212295097U (en) * | 2020-07-23 | 2021-01-05 | 中国二十二冶集团有限公司 | Bolt mounting fixing frame |
-
2020
- 2020-07-23 CN CN202010714790.5A patent/CN112376704B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203247603U (en) * | 2013-05-29 | 2013-10-23 | 中国建筑第二工程局有限公司 | High-order rag bolt positioner |
| CN105544587A (en) * | 2015-12-10 | 2016-05-04 | 上海建工一建集团有限公司 | Combined tower crane foundation and construction method thereof |
| CN206034931U (en) * | 2016-08-21 | 2017-03-22 | 中国十九冶集团有限公司南京分公司 | Locating rack of firmware installation accuracy is watered in assurance |
| CN108589766A (en) * | 2018-05-09 | 2018-09-28 | 五冶集团上海有限公司 | Bolt location structure and di rect-buried bolt accuracy control method |
| CN212295097U (en) * | 2020-07-23 | 2021-01-05 | 中国二十二冶集团有限公司 | Bolt mounting fixing frame |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898193A (en) * | 2021-10-28 | 2022-01-07 | 中国二十二冶集团有限公司 | Installation construction method for bolts in platform beam plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112376704B (en) | 2024-07-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110439270B (en) | Construction method of post-cast strip disassembly-free support system | |
| CN101575911B (en) | Top-down decreasing-formwork formwork system and construction method | |
| CN108729353A (en) | A kind of General reinforced cage binding moulding bed | |
| CN110886227B (en) | Main tower cast-in-place lower cross beam support system and construction method | |
| CN214194152U (en) | Assembled bracket supporting structure of upper beam construction template of cable-stayed bridge cable tower | |
| CN110878522B (en) | Main tower lower cross beam construction system and construction method | |
| CN111910520B (en) | Construction method of high-speed inclined leg crossing rigid frame overpass | |
| CN212295097U (en) | Bolt mounting fixing frame | |
| CN115627697A (en) | Multifunctional bearing platform support system and construction method | |
| CN112376704A (en) | Bolt mounting and fixing frame and construction method thereof | |
| CN212956151U (en) | Cast-in-place beam flange plate template system | |
| CN114837090B (en) | Combined bracket system for high tower beam construction and construction method | |
| CN218061492U (en) | Device for pouring concrete platform on steel structure frame | |
| CN102155095A (en) | Arrangement method of steel rib concrete steel bars of large metallurgical industry factory building | |
| CN117005729A (en) | Assembled prefabricated upright post inspection pit structure capable of being constructed in forward direction and construction method | |
| CN214783307U (en) | Cast-in-place support of case roof beam | |
| CN213927614U (en) | Shear force wall concrete replacement reinforced structure | |
| CN209907886U (en) | Adjustable assembled stair construction platform | |
| CN213233165U (en) | Bridge auxiliary pier support installation device | |
| CN220450682U (en) | Temporary construction support based on new bridge tie beam | |
| CN221321744U (en) | A shelve shaped steel foundation construction structure for atrium dish knot die carrier | |
| CN219430545U (en) | Operation platform for utilizing stiffness framework for tower column head section | |
| CN115492400B (en) | Steel structure net frame lifting construction method | |
| CN215369949U (en) | Middle plate and frame body reserved door type channel | |
| CN221000627U (en) | Oversized 0# block bracket and counter-force prepressing device thereof |
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 |