CN111502033A - Quick mounting structure of full-prefabricated high strength PC floor and girder steel - Google Patents
Quick mounting structure of full-prefabricated high strength PC floor and girder steel Download PDFInfo
- Publication number
- CN111502033A CN111502033A CN202010373250.5A CN202010373250A CN111502033A CN 111502033 A CN111502033 A CN 111502033A CN 202010373250 A CN202010373250 A CN 202010373250A CN 111502033 A CN111502033 A CN 111502033A
- Authority
- CN
- China
- Prior art keywords
- floor
- plate
- steel beam
- flange plate
- strength
- 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
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
Abstract
The invention relates to the technical field of building construction, in particular to a full-prefabricated high-strength PC floor slab and steel beam quick mounting structure which comprises a steel beam, wherein the steel beam comprises an upper flange plate, a lower flange plate and a web plate, the web plate is connected between the upper flange plate and the lower flange plate, a fracture is arranged on the upper flange plate, a groove is formed in the top of the web plate, the PC floor slab is arranged in the groove and the fracture, a supporting plate is arranged between the upper flange plate and the lower flange plate, the supporting plate is tightly attached to the lower surface of the PC floor slab, and a hanging rod is connected between the upper flange plate and the supporting plate. The connection between the PC floor and the steel beam meets the requirement of small clearance height, and has the advantages of no need of on-site formwork support and scaffold erection; the length of the stay bar can be quickly adjusted on site, the stay bar with the length equal to the distance between the lower flange plate and the supporting plate can be cut without accurately measuring the steel bar, the stay bar can be prepared in advance, and a large amount of working hours are saved.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a quick mounting structure for a fully-prefabricated high-strength PC (polycarbonate) floor slab and a steel beam.
Background
In a building engineering structure, a connection method of a steel beam and a prefabricated floor slab is of great importance, and space utilization, construction progress and engineering cost are directly related.
The utility model discloses an authorized bulletin number is CN216234363U provides a connection structure of floor and girder steel, buries underground in concrete floor's bottom through the top with the upper flange board of girder steel and web, can reduce the gross thickness of girder steel and concrete floor to reduce the usable headroom that girder steel and concrete floor occupy.
According to the method for connecting the floor slab and the steel beam, the on-site formwork erection and scaffold erection are required in construction, the construction quality is easily influenced, and the construction progress is slow, so that a rapid installation structure of the floor slab and the steel beam, which occupies small clearance height, is required.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a full-prefabricated high-strength PC floor slab and steel beam rapid installation structure which has the advantages of no need of on-site formwork erecting and scaffold erecting in construction.
The above object of the present invention is achieved by the following technical solutions: the utility model provides a quick mounting structure of full prefabricated high strength PC floor and girder steel, includes the girder steel, and the girder steel includes top flange board, lower flange board and web, and the web is connected between top flange board and lower flange board, be equipped with the fracture on the top flange board, the web top is equipped with the recess, and the PC floor is arranged in recess and fracture, is equipped with the layer board between top flange board and the lower flange board, and the lower surface of PC floor is hugged closely to the layer board, is connected with the jib between top flange board and the layer board.
By adopting the technical scheme, the suspender is utilized to connect the upper flange plate and the supporting plate, so that the PC floor is clamped between the upper flange plate and the supporting plate, the PC floor is immersed into the steel beam, the requirement of small clearance height is met, the suspender is used to connect the upper flange plate and the supporting plate, the method is simple and quick, a template and a scaffold are not needed, and a site formwork and a scaffold are not needed to be erected.
Preferably, the hanger rod comprises a stud and a nut, the stud penetrates through the supporting plate, the nut is screwed on the stud below the supporting plate, and the top of the stud is fixedly connected with the upper flange plate.
By adopting the technical scheme, the quick connection of the supporting plate and the upper flange plate by the lifting rod is realized by utilizing the quick dismounting mode of threaded connection of the stud and the nut.
Preferably, the reinforcing mesh in the PC floor slab stretches out first reinforcing bar from the lower surface of the PC floor slab, the supporting plate is provided with a first through hole, and the first reinforcing bar is welded and fixed in the first through hole.
Through adopting above-mentioned technical scheme, realized the firm connection of PC floor and layer board, improved the structural stability of PC floor and girder steel junction.
Preferably, the upper flange plate is welded at the fracture, the reinforcing mesh in the PC floor slab extends out of the second reinforcing steel bar from the upper surface of the PC floor slab, the cover plate is provided with a second through hole, and the second reinforcing steel bar is welded and fixed in the second through hole.
By adopting the technical scheme, the cover plate is welded with the upper flange plate, the original appearance of the upper flange plate is recovered, and the top surface of the upper flange plate is horizontal and has no recess; and the reinforcing mesh in the PC floor is welded in the second through hole of the cover plate, so that the connection stability of the PC floor and the steel beam is improved.
Preferably, both ends of the cover plate are provided with first notch grooves, the upper flange plate is provided with second notch grooves opposite to the first notch grooves, and the first notch grooves and the second notch grooves which are opposite in position are connected through clamping blocks.
Through adopting above-mentioned technical scheme, only need lack the inslot with fixture block welded fastening in first scarce groove, second, can realize the relatively fixed of apron and last flange board, need not to weld the whole strip joint line of covering board and last flange board, labour saving and time saving.
Preferably, a support rod is connected between the lower flange plate and the supporting plate.
Through adopting above-mentioned technical scheme, the vaulting pole has improved the resistance to compression and the tensile strength of layer board in vertical side, has also improved the overall structure intensity of girder steel.
Preferably, the stay bar comprises an internal thread sleeve, a first straight rod and a second straight rod, and the first straight rod and the second straight rod are respectively screwed at two ends of the internal thread sleeve.
Through adopting above-mentioned technical scheme, realized the on-the-spot quick adjustment length of vaulting pole, need not the accurate measurement rod iron and cut out the vaulting pole that length equals the distance between lower flange board and the layer board again, can prepare the vaulting pole in advance, saved a large amount of man-hours.
Preferably, the stay bar comprises a grouting sleeve, a first straight rod and a second straight rod, and the first straight rod and the second straight rod are respectively fixed at two ends of the grouting sleeve.
Through adopting above-mentioned technical scheme, this vaulting pole structure also can realize the on-the-spot quick adjustment length of vaulting pole, and the advantage is that the cost is lower, need not the higher internal thread sleeve of a large amount of costs.
In summary, the invention includes at least one of the following beneficial technical effects:
the connection between the PC floor and the steel beam meets the requirement of small clearance height, and has the advantages of no need of on-site formwork support and scaffold erection;
2. the length of the stay bar can be quickly adjusted on site, the stay bar with the length equal to the distance between the lower flange plate and the supporting plate can be cut without accurately measuring the steel bar, the stay bar can be prepared in advance, and a large amount of working hours are saved.
Drawings
FIG. 1 is a schematic view of the overall structure of a fully prefabricated high-strength PC floor slab and steel beam quick installation structure;
FIG. 2 is a schematic view of a steel beam;
FIG. 3 is a schematic view of the structure of FIG. 1 after the PC floor slab is hidden;
FIG. 4 is a schematic structural view of a cover plate;
fig. 5 is an enlarged view of a portion a in fig. 3.
In the drawings, 1, a steel beam; 2. a PC floor slab; 3. an upper flange plate; 4. a lower flange plate; 5. a web; 6. breaking off; 7. a groove; 8. a support plate; 9. a boom; 10. a stud; 11. a nut; 12. a first through hole; 13. a cover plate; 14. a first reinforcing bar; 15. a second reinforcing bar; 16. a second through hole; 17. a first notch; 18. a second notch; 19. a clamping block; 20. a stay bar; 21. a first straight rod; 22. a second straight rod; 23. an internally threaded sleeve.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1
Referring to fig. 1, the fully-prefabricated high-strength PC floor and steel beam quick mounting structure disclosed by the invention comprises a PC floor 2 and a steel beam 1, wherein the steel beam 1 is composed of an upper flange plate 3, a lower flange plate 4 and a web plate 5, two ends of the web plate 5 are respectively fixedly connected with the upper flange plate 3 and the lower flange plate 4, and the steel beam 1 is integrally in an i shape.
As shown in fig. 1, the PC floor 2 is sunk into the steel beam 1 from the top of the steel beam 1: the upper flange plate 3 is provided with a fracture 6 (see figure 2), the top of the web 5 is provided with a groove 7 (see figure 2), the groove 7 corresponds to the fracture 6, the PC floor 2 is arranged in the fracture 6 and the groove 7, and the top of the PC floor 2 does not protrude out of the upper surface of the upper flange plate 3. A horizontal supporting plate 8 is arranged between the upper flange plate 3 and the lower flange plate 4, the lower surface of the PC floor slab 2 is supported by the supporting plate 8, namely the upper surface of the supporting plate 8 is flush with the bottom of the groove 7.
Before connecting PC floor 2 and girder steel 1, layer board 8 is not connected with girder steel 1, and layer board 8 is waited to be connected with girder steel 1 through jib 9 after PC floor 2 puts into recess 7. The connection mode of the supporting plate 8 and the steel beam 1 is as follows: as shown in fig. 1, the hanger rod 9 is composed of a stud 10 and a nut 11, the stud 10 is vertically welded and fixed to the upper flange plate 3, a circular hole is formed in the support plate 8, the stud 10 penetrates through the circular hole, and the nut 11 is screwed on the stud 10 below the support plate 8.
As shown in fig. 1, in order to improve the pressure resistance to the supporting plate 8 and the structural strength of the steel beam 1, a row of vertical braces 20 is connected between the lower flange plate 4 and the supporting plate 8. The stay bar 20 is composed of an internal thread sleeve 23, a first straight bar 21 and a second straight bar 22, and the first straight bar 21 and the second straight bar 22 are respectively screwed on two ends of the internal thread sleeve 23. The length of the stay bar 20 can be quickly adjusted on site by rotating the first straight bar 21 and the second straight bar 22 relative to the internal thread sleeve 23, the stay bar 20 with the length equal to the distance between the lower flange plate 4 and the supporting plate 8 does not need to be cut out after the steel bar is accurately measured, the stay bar 20 can be prepared in advance, and a large amount of working hours are saved. When the price of the internal thread sleeve 23 is high locally and the cost needs to be saved, the internal thread sleeve 23 can be replaced by a grouting sleeve, and the first straight rod 21 and the second straight rod 22 are respectively fixed at two ends of the grouting sleeve by concrete during use.
As shown in fig. 1, the mesh reinforcement in the PC floor 2 extends from the lower surface of the PC floor 2 by at least one row of first reinforcing bars 14, the support plate 8 has first through holes 12 (see fig. 3) corresponding in number and position, the first reinforcing bars 14 are inserted into the first through holes 12 one by one, and then the first reinforcing bars 14 are welded and fixed in the first through holes 12.
As shown in fig. 1, when the top surface of the PC floor slab 2 is lower than the upper surface of the upper flange plate 3, it is necessary to cover the cover plate 13 at the fracture 6 of the upper flange plate 3. The reinforcing mesh in the PC floor 2 extends out of at least one row of second reinforcing bars 15 from the upper surface of the PC floor 2, the cover plate 13 is provided with second through holes 16 (see figure 3) corresponding to the number and the positions, the second reinforcing bars 15 are inserted into the second through holes 16 one by one when the cover plate 13 is installed, then the second reinforcing bars 15 are welded and fixed in the second through holes 16, and finally, the parts of the second reinforcing bars 15 protruding out of the upper surface of the upper flange plate 3 are sawn off.
As shown in fig. 3, since the two joint seams of the cover plate 13 and the upper flange plate 3 are time-consuming and laborious to weld, the welding solution is abandoned and the cover plate 13 is welded to the upper flange plate 3 by the clips 19 instead: the two ends of the cover plate 13 are provided with first notches 17 (see fig. 4 in detail), the upper flange plate 3 is provided with second notches 18 at positions opposite to the first notches 17, and the fixture blocks 19 are welded and fixed in the first notches 17 and the second notches 18 which are opposite in position.
The implementation principle of the embodiment is as follows: utilize jib 9 to connect upper flange plate 3 and layer board 8, make PC floor 2 by the clamp between upper flange plate 3 and layer board 8, because PC floor 2 sinks in girder steel 1, so satisfy the little requirement of headroom, the mode of connecting upper flange plate 3 and layer board 8 with jib 9 is simple quick moreover, need not to use template and scaffold frame, so need not on-the-spot formwork, set up the scaffold frame.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. The utility model provides a quick mounting structure of full prefabricated high strength PC floor and girder steel, includes girder steel (1), and girder steel (1) includes top flange board (3), lower flange board (4) and web (5), and web (5) are connected between top flange board (3) and lower flange board (4), its characterized in that: be equipped with fracture (6) on last flange board (3), web (5) top is equipped with recess (7), and recess (7) and fracture (6) are arranged in to PC floor (2), are equipped with layer board (8) between last flange board (3) and lower flange board (4), and the lower surface of PC floor (2) is hugged closely in layer board (8), is connected with jib (9) between last flange board (3) and layer board (8).
2. The fully-prefabricated high-strength PC floor slab and steel beam rapid installation structure according to claim 1, characterized in that: the hanger rod (9) comprises a stud (10) and a nut (11), the stud (10) penetrates through the supporting plate (8), the nut (11) is screwed on the stud (10) below the supporting plate (8), and the top of the stud (10) is fixedly connected with the upper flange plate (3).
3. The fully-prefabricated high-strength PC floor slab and steel beam rapid installation structure according to claim 1, characterized in that: the reinforcing bar net in the PC floor (2) stretches out first reinforcing bar (14) from the lower surface of PC floor (2), is equipped with first through-hole (12) on layer board (8), and first reinforcing bar (14) welded fastening is in first through-hole (12).
4. The fully-prefabricated high-strength PC floor slab and steel beam rapid installation structure according to claim 1, characterized in that: the welding of fracture (6) department of going up flange board (3) has apron (13), and second reinforcing bar (15) are stretched out from PC floor (2) upper surface to the reinforcing bar net in PC floor (2), are equipped with second through-hole (16) on apron (13), and second reinforcing bar (15) welded fastening is in second through-hole (16).
5. The fully-prefabricated high-strength PC floor slab and steel beam rapid installation structure according to claim 4, characterized in that: both ends of the cover plate (13) are provided with first notch grooves (17), the upper flange plate (3) is provided with second notch grooves (18) at positions opposite to the first notch grooves (17), and the first notch grooves (17) and the second notch grooves (18) which are opposite in position are connected through clamping blocks (19).
6. The fully-prefabricated high-strength PC floor slab and steel beam rapid installation structure according to claim 1, characterized in that: and a support rod (20) is connected between the lower flange plate (4) and the supporting plate (8).
7. The fully-prefabricated high-strength PC floor slab and steel beam quick mounting structure according to claim 5, characterized in that: the support rod (20) comprises an internal thread sleeve (23), a first straight rod (21) and a second straight rod (22), and the first straight rod (21) and the second straight rod (22) are respectively screwed at two ends of the internal thread sleeve (23).
8. The fully-prefabricated high-strength PC floor slab and steel beam quick mounting structure according to claim 5, characterized in that: the support rod (20) comprises a grouting sleeve, a first straight rod (21) and a second straight rod (22), and the first straight rod (21) and the second straight rod (22) are fixed at two ends of the grouting sleeve respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010373250.5A CN111502033A (en) | 2020-05-06 | 2020-05-06 | Quick mounting structure of full-prefabricated high strength PC floor and girder steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010373250.5A CN111502033A (en) | 2020-05-06 | 2020-05-06 | Quick mounting structure of full-prefabricated high strength PC floor and girder steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111502033A true CN111502033A (en) | 2020-08-07 |
Family
ID=71869939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010373250.5A Pending CN111502033A (en) | 2020-05-06 | 2020-05-06 | Quick mounting structure of full-prefabricated high strength PC floor and girder steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111502033A (en) |
Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0960167A (en) * | 1995-08-24 | 1997-03-04 | Yasuhiro Tanase | Tool for installing cavity block |
| CN2436578Y (en) * | 2000-06-16 | 2001-06-27 | 王关根 | Universal joint device for steel structure building |
| CN101503892A (en) * | 2009-02-04 | 2009-08-12 | 南通建筑工程总承包有限公司 | Connection nodes between steel reinforced concrete full prefabricated assembly structural shear wall and beam |
| CN204126105U (en) * | 2014-09-19 | 2015-01-28 | 昆明理工大学 | A kind of sun-dried mud brick of the adobe wall for constructing highly seismic region of providing fortification against earthquakes |
| US9038349B2 (en) * | 2013-07-19 | 2015-05-26 | Benjamin D. Fox | Keder rail attachment for a fabric/panel building |
| CN105507429A (en) * | 2014-09-22 | 2016-04-20 | 贵州中建建筑科研设计院有限公司 | Structure and construction method of aperture steel plate shear keys |
| CN205224363U (en) * | 2015-11-19 | 2016-05-11 | 中国建筑第八工程局有限公司 | Connection structure of floor and girder steel |
| CN105908882A (en) * | 2016-05-31 | 2016-08-31 | 安徽富煌建筑设计研究有限公司 | Reinforced concrete box-girder with lowerable section height and construction method thereof |
| CN206070870U (en) * | 2016-09-26 | 2017-04-05 | 深圳市三义建筑系统有限公司 | A kind of web with openings formula combination beam on H profile steel basis |
| CN107327019A (en) * | 2017-07-05 | 2017-11-07 | 宁波二十冶建设有限公司 | One kind exempts from template cast-in-situ steel reinforced concrete collar tie beam structure and its construction method |
| CN206800800U (en) * | 2017-04-17 | 2017-12-26 | 江苏双楼建设集团有限公司 | Horizontal reinforcement distance piece |
| CN207032507U (en) * | 2017-07-12 | 2018-02-23 | 宁夏远高新能源装备制造有限公司 | A kind of attachment structure of floor and girder steel |
| CN208167983U (en) * | 2018-03-09 | 2018-11-30 | 新昌县营道科技有限公司 | A kind of high-strength connection structure for floor beam and wall |
| CN109024908A (en) * | 2018-08-23 | 2018-12-18 | 青岛理工大学 | A kind of joint structure that sunk type prefabricated board is connect with H profile steel beam |
| CN109610707A (en) * | 2018-12-12 | 2019-04-12 | 大连理工大学 | A kind of design and rapid constructing method of prefabricated girder steel and floor fit flush |
| CN209482727U (en) * | 2019-01-24 | 2019-10-11 | 肖辉胜 | A kind of auxiliary support apparatus for building engineering construction |
| CN209703704U (en) * | 2019-03-26 | 2019-11-29 | 北京城建二建设工程有限公司 | A kind of easy building structure attachment device of construction |
| CN110541485A (en) * | 2019-09-28 | 2019-12-06 | 沈阳建筑大学 | Connection node of assembled floor and roof beam |
| CN110552422A (en) * | 2019-09-29 | 2019-12-10 | 宝业西伟德混凝土预制件（合肥）有限公司 | Assembly type underground structure accessory |
| CN110805203A (en) * | 2019-11-13 | 2020-02-18 | 佩克建筑配件(张家港)有限公司 | Rapid construction method for Delta-shaped steel beam matched prefabricated column with hidden connecting piece |
| CN210342339U (en) * | 2019-05-07 | 2020-04-17 | 天津华安天建门业有限公司 | Composite light steel keel inner wall structure |
-
2020
- 2020-05-06 CN CN202010373250.5A patent/CN111502033A/en active Pending
Patent Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0960167A (en) * | 1995-08-24 | 1997-03-04 | Yasuhiro Tanase | Tool for installing cavity block |
| CN2436578Y (en) * | 2000-06-16 | 2001-06-27 | 王关根 | Universal joint device for steel structure building |
| CN101503892A (en) * | 2009-02-04 | 2009-08-12 | 南通建筑工程总承包有限公司 | Connection nodes between steel reinforced concrete full prefabricated assembly structural shear wall and beam |
| US9038349B2 (en) * | 2013-07-19 | 2015-05-26 | Benjamin D. Fox | Keder rail attachment for a fabric/panel building |
| CN204126105U (en) * | 2014-09-19 | 2015-01-28 | 昆明理工大学 | A kind of sun-dried mud brick of the adobe wall for constructing highly seismic region of providing fortification against earthquakes |
| CN105507429A (en) * | 2014-09-22 | 2016-04-20 | 贵州中建建筑科研设计院有限公司 | Structure and construction method of aperture steel plate shear keys |
| CN205224363U (en) * | 2015-11-19 | 2016-05-11 | 中国建筑第八工程局有限公司 | Connection structure of floor and girder steel |
| CN105908882A (en) * | 2016-05-31 | 2016-08-31 | 安徽富煌建筑设计研究有限公司 | Reinforced concrete box-girder with lowerable section height and construction method thereof |
| CN206070870U (en) * | 2016-09-26 | 2017-04-05 | 深圳市三义建筑系统有限公司 | A kind of web with openings formula combination beam on H profile steel basis |
| CN206800800U (en) * | 2017-04-17 | 2017-12-26 | 江苏双楼建设集团有限公司 | Horizontal reinforcement distance piece |
| CN107327019A (en) * | 2017-07-05 | 2017-11-07 | 宁波二十冶建设有限公司 | One kind exempts from template cast-in-situ steel reinforced concrete collar tie beam structure and its construction method |
| CN207032507U (en) * | 2017-07-12 | 2018-02-23 | 宁夏远高新能源装备制造有限公司 | A kind of attachment structure of floor and girder steel |
| CN208167983U (en) * | 2018-03-09 | 2018-11-30 | 新昌县营道科技有限公司 | A kind of high-strength connection structure for floor beam and wall |
| CN109024908A (en) * | 2018-08-23 | 2018-12-18 | 青岛理工大学 | A kind of joint structure that sunk type prefabricated board is connect with H profile steel beam |
| CN109610707A (en) * | 2018-12-12 | 2019-04-12 | 大连理工大学 | A kind of design and rapid constructing method of prefabricated girder steel and floor fit flush |
| CN209482727U (en) * | 2019-01-24 | 2019-10-11 | 肖辉胜 | A kind of auxiliary support apparatus for building engineering construction |
| CN209703704U (en) * | 2019-03-26 | 2019-11-29 | 北京城建二建设工程有限公司 | A kind of easy building structure attachment device of construction |
| CN210342339U (en) * | 2019-05-07 | 2020-04-17 | 天津华安天建门业有限公司 | Composite light steel keel inner wall structure |
| CN110541485A (en) * | 2019-09-28 | 2019-12-06 | 沈阳建筑大学 | Connection node of assembled floor and roof beam |
| CN110552422A (en) * | 2019-09-29 | 2019-12-10 | 宝业西伟德混凝土预制件（合肥）有限公司 | Assembly type underground structure accessory |
| CN110805203A (en) * | 2019-11-13 | 2020-02-18 | 佩克建筑配件(张家港)有限公司 | Rapid construction method for Delta-shaped steel beam matched prefabricated column with hidden connecting piece |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108951886B (en) | Prefabricated assembled concrete anti-seismic node | |
| CN212534174U (en) | Raft foundation steel bar supporting tool | |
| CN112922237A (en) | Take telescopic assembled reinforced concrete post and girder steel connected node | |
| CN206503233U (en) | Assembled architecture beam-to-column joint structure and steel building | |
| CN111502033A (en) | Quick mounting structure of full-prefabricated high strength PC floor and girder steel | |
| CN214656409U (en) | Bridge deck pavement formwork support and mounting tool | |
| CN216999251U (en) | Support firm large-span pipe truss structure | |
| CN113062448A (en) | Frame beam steel bar connecting system of section steel column and concrete and pouring construction method | |
| CN103938877B (en) | The installation method of crab-bolt stock | |
| CN207633655U (en) | Outer gutter formwork structure | |
| CN219653936U (en) | Outdoor comprehensive bridge connection structure | |
| CN215948237U (en) | Highway bridge construction cofferdam device | |
| CN213926982U (en) | Prefabricated coincide floor node structure in board area falls | |
| CN111424972A (en) | Method and structure for reinforcing ultra-large type steel concrete beam side mold | |
| CN214531501U (en) | Novel reinforcing ring beam | |
| CN215829991U (en) | Support joint for climbing frame at hollow position | |
| CN214784161U (en) | Be used for smooth fender of place to protect structure | |
| CN209114976U (en) | A kind of dismountable environment protection fence | |
| CN219971662U (en) | Indoor anchor of tower crane | |
| CN219793660U (en) | K-shaped hanging die device for open type combined box girder | |
| CN219973885U (en) | Hyperboloid roofing template braced system | |
| CN215926949U (en) | Steel leaning tower force rod type support structure system | |
| CN215167155U (en) | Prefabricated component of assembled building | |
| CN219604164U (en) | Variable cross-section special-shaped steel tower crown mounting device | |
| CN219952019U (en) | Special-shaped bearing platform |
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: 20200807 |
|
| RJ01 | Rejection of invention patent application after publication |