CN219863585U - Prestress reinforced door-type steel frame structure - Google Patents
Prestress reinforced door-type steel frame structure Download PDFInfo
- Publication number
- CN219863585U CN219863585U CN202320725443.1U CN202320725443U CN219863585U CN 219863585 U CN219863585 U CN 219863585U CN 202320725443 U CN202320725443 U CN 202320725443U CN 219863585 U CN219863585 U CN 219863585U
- Authority
- CN
- China
- Prior art keywords
- mounting seat
- groups
- fixedly connected
- hole
- beams
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 86
- 239000010959 steel Substances 0.000 title claims abstract description 86
- 230000002787 reinforcement Effects 0.000 claims abstract description 12
- 230000003014 reinforcing effect Effects 0.000 claims description 27
- 230000007246 mechanism Effects 0.000 claims description 11
- 210000001503 joint Anatomy 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Rod-Shaped Construction Members (AREA)
Abstract
The utility model relates to the technical field of steel structures, in particular to a prestress reinforcement door-type steel frame structure, which comprises a door-type frame, wherein adjacent ends of two groups of top beams are fixedly connected, two groups of upright posts are respectively and fixedly connected with the bottoms of the distal ends of the two groups of top beams, the top beams are provided with a through hole I and a through hole II, two ends of an auxiliary beam are respectively and fixedly connected with the two groups of upright posts, two ends of the support beam are respectively and fixedly connected with the top of the auxiliary beam and the joint of the two groups of top beams, a mounting seat I is fixedly arranged on a base, a mounting seat II is fixedly arranged on the inner side of the top of the support beam, a steering seat I is fixedly arranged on the inner side of the top beam, a steering seat II is fixedly arranged at the bottom of the top beam, one end of a fastening steel cable passes through the top of the mounting seat I and is fixedly connected with the mounting seat through a nut, the fastening steel cable passes through the through hole I and is in butt joint with the steering seat II, the other end of the fastening steel cable passes through the support beam and is fixedly connected with the mounting seat II through the nut, prestress of the two groups of the top beams can be adjusted in a single degree, and the operation is convenient.
Description
Technical Field
The utility model relates to the technical field of steel structures, in particular to a prestress reinforced door-type steel frame structure.
Background
At present, the portal steel frame light house steel structure is widely applied to industrial and civil buildings such as industrial, commercial and cultural entertainment public facilities and the like due to the advantages of simple stress, clear force transmission path, rapid component manufacturing, short construction period and the like. Therefore, the structural strength and stability of the portal steel frame are strictly required.
The Chinese patent with publication number of CN217353697U discloses a door type steel structure roof truss reinforcing structure, which comprises a door type steel frame, wherein the door type steel frame comprises a plurality of support columns and roof truss beams connected with the support columns; the steel strand tensioning device is characterized by further comprising a steel strand tensioning device, wherein the left end of the steel strand tensioning device is connected to a roof truss beam close to the left support column, the right end of the steel strand tensioning device is connected to the roof truss beam close to the right support column, at least two vertical support rods are arranged between the steel strand tensioning device and the roof truss beam, and the vertical support rods are respectively positioned on two sides of the vertical central line of the portal steel frame. According to the door type steel structure roof truss structure, the tensioning steel stranded wires and the vertical supporting rods are additionally arranged, so that upward prestress is applied to the roof truss, and the bearing capacity and the stability of the roof truss are enhanced.
The structure is provided with the roof truss beam and the stretching steel strands, the left end and the right end of each stretching steel strand are respectively connected to the left side and the right side of the roof truss beam and close to the support column, the supporting strength of the two sides of the roof truss beam can be adjusted simultaneously when the stretching steel strands are adjusted, when the inclined plane of one side of the top of the portal steel frame is increased with external equipment in the use process, the left side and the right side of the roof truss beam are stressed unevenly, the prestress cannot be adjusted on one side to adapt to the increased gravity of the external equipment, and the stability is affected.
Disclosure of Invention
Aiming at the problem that the prestress can not be regulated on one side of a portal steel frame in the prior art, the utility model particularly provides a prestress reinforced portal steel frame structure.
For this purpose, the utility model adopts the following specific technical scheme:
the utility model provides a prestress reinforcement door-type steel frame structure, which comprises
The door type frame comprises two groups of upright posts and two groups of top beams, wherein adjacent ends of the two groups of top beams are fixedly connected, the two groups of upright posts are respectively and fixedly connected with the bottoms of the distal ends of the two groups of top beams, the bottoms of the upright posts are fixedly arranged on a base, the top beams are provided with first through holes, the first through holes are positioned at the joint of the top beams and the upright posts, and the middle parts of the top beams are provided with second through holes;
the two ends of the auxiliary beam are fixedly connected with the two groups of upright posts respectively;
the two ends of the supporting beam are fixedly connected with the top of the auxiliary beam and the joint of the two groups of top beams respectively;
the reinforcing mechanism is arranged on the left side and the right side of the portal frame, comprises a fastening steel cable, a first steering seat, a connecting rod, a second steering seat, a first mounting seat and a second mounting seat, screw thread sections are arranged at two ends of the fastening steel cable, the first mounting seat is fixedly arranged on the base, a third through hole is arranged at the top of the first mounting seat, a stand column is inserted on the first mounting seat, the second mounting seat is fixedly arranged on the inner side of the top of the supporting beam, the first steering seat is positioned at the position of the first through hole and is fixedly arranged on the inner side of the top beam, the connecting rod is positioned on one side of the second through hole far away from the first through hole, the connecting rod is fixedly arranged at the bottom of the top beam, the second steering seat is fixedly arranged at the bottom of the connecting rod, one end of the fastening steel cable penetrates through the top of the first mounting seat and is fixedly connected with the mounting seat through a nut, the vertical section of the fastening steel cable penetrates through the through hole and is in butt with the first steering seat, the transverse section of the fastening steel cable penetrates through the second through hole and is butt with the second steering seat, and the other end of the fastening steel cable penetrates through the supporting beam and is fixedly connected with the second mounting seat through the nut.
The principle of the utility model is as follows:
1. when the reinforcement operation is carried out, the portal frame comprises two groups of upright posts and two groups of top beams, the adjacent ends of the two groups of top beams are fixedly connected, the two groups of upright posts are respectively and fixedly connected with the bottoms of the distal ends of the two groups of top beams, the bottoms of the upright posts are fixedly arranged on the base, the two ends of the auxiliary beams are respectively and fixedly connected with the two groups of upright posts, the reinforcement effect is achieved on the two groups of upright posts, the two ends of the support beam are respectively and fixedly connected with the tops of the auxiliary beams and the connection parts of the two groups of top beams, the top beams are further supported and reinforced, and the strength of the top beams is ensured;
2. the number of the reinforcing mechanisms is two, the reinforcing mechanisms are respectively positioned at the left side and the right side of the portal frame, the two groups of top beams are respectively and independently supported and reinforced, the reinforcing mechanisms comprise a fastening steel cable, a first steering seat, a connecting rod, a second steering seat, a first mounting seat and a second mounting seat, both ends of the fastening steel cable are respectively provided with a thread section, the first mounting seat is fixedly arranged on a base, the top of the first mounting seat is provided with a through hole III, a stand column is inserted on the first mounting seat, the second mounting seat is fixedly arranged at the inner side of the top of the supporting beam, the top beam is vertically provided with a through hole I at the joint of the top beam and the stand column, the middle part of the top beam is provided with a through hole II, the first steering seat is positioned above the through hole I and fixedly arranged at the inner side of the top beam, the connecting rod is positioned at one side of the through hole II away from the through hole I, the connecting rod is fixedly arranged at the bottom of the top beam, the connecting rod is fixedly provided with the second steering seat, one end of the fastening steel cable penetrates through the top of the first mounting seat and is connected and fixed with the first mounting seat through the nut, the vertical section of the fastening steel cable penetrates through the through hole and is in butt joint with the first steering seat, the transverse section of the fastening steel cable penetrates through the second through hole and is in butt joint with the second steering seat, the fastening steel cable achieves direction changing through the first steering seat and the second steering seat, meanwhile, upward force is applied to the second steering seat, upward supporting force is applied to the top beam, the other end of the fastening steel cable penetrates through the supporting beam and is connected and fixed with the second mounting seat through the nut, when external equipment is added to the single-side top beam, a worker can adjust the fastening steel cable of the corresponding top beam through adjusting the nut at the first mounting seat, prestress of the two groups of top beams can be conveniently and independently adjusted, and stability of the portal frame is guaranteed.
Preferably, the upright post, the top beam, the auxiliary beam and the supporting beam are all H-shaped steel, so that the strength of each component is ensured.
Preferably, the support beam further comprises two groups of reinforcing plates, wherein the two groups of reinforcing plates are symmetrically distributed on the left side and the right side of the support beam, two ends of each reinforcing plate are welded with the support beam and the auxiliary beam, a triangle is formed between each reinforcing plate and the support beam and between each reinforcing plate and the auxiliary beam, and the support beam and the auxiliary beam are further reinforced.
Preferably, the inner side of the top of the upright post is provided with a plurality of groups of rib plates along the axial direction at intervals, the steel cable is fastened to pass through the rib plates, the strength of the joint of the upright post and the auxiliary beam is enhanced, and the stability of the structure is ensured.
Preferably, the side walls of the first through hole and the second through hole are arc surfaces, the side walls are in smooth transition with the outer wall of the top beam, and the situation that the fastening steel cable is sheared with the first through hole and the second through hole to damage the fastening steel cable is avoided.
Preferably, the first mounting seat is fixedly connected with the base through a bolt, the second mounting seat is fixedly connected with the supporting beam through a bolt, the connection strength of the first mounting seat and the second mounting seat is guaranteed, and the mounting and the dismounting are convenient.
By adopting the technical scheme, the method has the advantages that:
the utility model is provided with two groups of reinforcing mechanisms, one end of a fastening steel cable passes through the top of the first mounting seat and is fixedly connected with the first mounting seat through a nut, the vertical section of the fastening steel cable passes through the through hole and is in butt joint with the second steering seat, the transverse section of the fastening steel cable passes through the second through hole and is in butt joint with the second steering seat, the fastening steel cable changes direction through the first steering seat and the second steering seat, and simultaneously, upward force is applied to the second steering seat, so that upward supporting force is applied to the top beam, the other end of the fastening steel cable passes through the supporting beam and is fixedly connected with the second mounting seat through the nut, when external equipment is needed to be added on a single-side inclined plane of the door frame, a worker can independently adjust the prestress of the two groups of top beams through the nuts of the first mounting seats, and the stability of the structure is enhanced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 shows a schematic structural view of the present utility model;
FIG. 2 shows a schematic structural view of a first base of the present utility model;
FIG. 3 shows a partial enlarged view of the utility model at A;
FIG. 4 shows a partial enlarged view at B of the present utility model;
fig. 5 shows a partial enlarged view at C of the present utility model.
Wherein: column 1, rib plate 101, base 2, back timber 3, steering seat one 301, through hole one 302, through hole two 303, connecting rod 304, steering seat two 305, auxiliary beam 4, reinforcing plate 401, supporting beam 5, fastening steel cable 6, mounting seat one 7, through hole three 701, mounting seat two 8, nut 9.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1 to 5, an embodiment of the present utility model discloses a prestressed reinforced door-type steel frame structure, which includes:
the portal frame comprises two groups of upright posts 1 and two groups of top beams 3, wherein adjacent ends of the two groups of top beams 3 are fixedly connected, the two groups of upright posts 1 are respectively and fixedly connected with the bottoms of the distal ends of the two groups of top beams 3, the bottoms of the upright posts 1 are fixedly arranged on a base 2, the top beams 3 are provided with first through holes 302, the first through holes 302 are positioned at the joint of the top beams 3 and the upright posts 1, and second through holes 303 are formed in the middle of the top beams 3;
the two ends of the auxiliary beam 4 are fixedly connected with the two groups of upright posts 1 respectively;
the two ends of the supporting beam 5 are fixedly connected with the top of the auxiliary beam 4 and the joint of the two groups of top beams 3 respectively;
the reinforcing mechanism is arranged on the left side and the right side of the portal frame, the reinforcing mechanism comprises a fastening steel cable 6, a first steering seat 301, a connecting rod 304, a second steering seat 305, a first mounting seat 7 and a second mounting seat 8, threaded sections are arranged at two ends of the fastening steel cable 6, the first mounting seat 7 is fixedly arranged on the base 2, a through hole three 701 is formed in the top of the first mounting seat 7, the upright column 1 is inserted on the first mounting seat 7, the second mounting seat 8 is fixedly arranged on the inner side of the top of the supporting beam 5, the first steering seat 301 is located at the position of the through hole one 302 and is fixedly arranged on the inner side of the top beam 3, the connecting rod 304 is located on one side of the through hole two 303 away from the through hole one 302, the connecting rod 304 is fixedly arranged at the bottom of the top beam 3, the bottom of the connecting rod 304 is fixedly provided with a second steering seat 305, one end of the fastening steel cable 6 passes through the top of the first mounting seat 7 and is fixedly connected with the first mounting seat 7 through a nut 9, the vertical section of the fastening steel cable 6 passes through the through hole one 302 and is in butt joint with the first steering seat 301, the transverse section of the fastening steel cable 6 passes through the supporting beam 303 and is in butt joint with the second steering seat 305, and the other end of the fastening steel cable 6 passes through the supporting beam 5 and is fixedly connected with the second nut 8 through the nut 9.
In at least one embodiment, the upright posts 1, the top beams 3, the auxiliary beams 4 and the supporting beams 5 are all H-shaped steel, so that the strength of each component is ensured.
In at least one embodiment, the reinforcing plates 401 further comprise two groups of reinforcing plates 401, the two groups of reinforcing plates 401 are symmetrically distributed on the left side and the right side of the supporting beam 5, two ends of each reinforcing plate 401 are welded with the supporting beam 5 and the auxiliary beam 4, a triangle is formed between each reinforcing plate 401 and the supporting beam 5 and the auxiliary beam 4, and the supporting beam 5 and the auxiliary beam 4 are further reinforced.
In at least one embodiment, a plurality of groups of rib plates 101 are arranged on the inner side of the top of the upright 1 along the axial direction at intervals, the fastening steel cable 6 passes through the rib plates 101, the strength of the joint of the upright 1 and the auxiliary beam 4 is enhanced, and the stability of the structure is ensured.
In at least one embodiment, the side walls of the first through hole 302 and the second through hole 303 are arc surfaces, and the side walls smoothly transition with the outer wall of the top beam 3, so as to avoid shearing the fastening steel cable 6 and the side walls of the first through hole 302 and the second through hole 303, and damage.
In at least one embodiment, the first mounting seat 7 is fixedly connected with the base 2 through a bolt, the second mounting seat 8 is fixedly connected with the supporting beam 5 through a bolt, the connection strength of the first mounting seat 7 and the second mounting seat 8 is ensured, and the mounting and the dismounting are convenient.
1. When the reinforcement operation is carried out, the portal frame comprises two groups of upright posts 1 and two groups of top beams 3, the adjacent ends of the two groups of top beams 3 are fixedly connected, the two groups of upright posts 1 are respectively and fixedly connected with the bottoms of the distal ends of the two groups of top beams 3, the bottoms of the upright posts 1 are fixedly arranged on the base 2, the two ends of the auxiliary beam 4 are respectively and fixedly connected with the two groups of upright posts 1, the reinforcement effect is provided for the two groups of upright posts 1, the two ends of the support beam 5 are respectively and fixedly connected with the tops of the auxiliary beam 4 and the joints of the two groups of top beams 3, the top beams 3 are further supported and reinforced, and the strength of the top beams 3 is ensured;
2. the number of the reinforcing mechanisms is two, the reinforcing mechanisms are respectively positioned at the left side and the right side of the portal frame, the two groups of top beams 3 are respectively and independently supported and reinforced, the reinforcing mechanisms comprise a fastening steel cable 6, a first steering seat 301, a connecting rod 304, a second steering seat 305, a first mounting seat 7 and a second mounting seat 8, threaded sections are respectively arranged at two ends of the fastening steel cable 6, the first mounting seat 7 is fixedly arranged on the base 2, a through hole III 701 is arranged at the top of the first mounting seat 7, a stand column 1 is inserted on the first mounting seat 7, the second mounting seat 8 is fixedly arranged at the inner side of the top of the supporting beam 5, a through hole I302 is vertically arranged at the joint of the top beam 3 and the stand column 1, a through hole II 303 is arranged in the middle of the top beam 3, the first steering seat 301 is positioned above the through hole I302 and is fixedly arranged at the inner side of the top beam 3, the connecting rod 304 is positioned at one side of the through hole II 303 away from the through hole I302, the connecting rod 304 is fixedly arranged at the bottom of the top beam 3, the bottom of the connecting rod 304 is fixedly provided with a steering seat II 305, one end of the fastening steel cable 6 passes through the top of the mounting seat I7 and is fixedly connected with the mounting seat I7 through a nut 9, the vertical section of the fastening steel cable 6 passes through the through hole I302 and is abutted with the steering seat I301, the transverse section of the fastening steel cable 6 passes through the through hole II 303 and is abutted with the steering seat II 305, the fastening steel cable 6 realizes steering through the steering seat I301 and the steering seat II 305, and simultaneously exerts upward force on the steering seat II 305 to realize upward supporting force on the top beam 3, the other end of the fastening steel cable 6 passes through the supporting beam 5 and is fixedly connected with the mounting seat II 8 through the nut 9, when external equipment is added to the single-side top beam 3, a worker can adjust the fastening steel cable 6 corresponding to the top beam 3 through adjusting the nut 9 at the position of the base 2, the prestress of the two groups of top beams 3 can be conveniently and independently adjusted, the stability of the portal frame is ensured.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be appreciated by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not drive the essence of the corresponding technical solutions to depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (6)
1. The prestress reinforcement door-type steel frame structure is characterized in that: comprising
The door type frame comprises two groups of upright posts and two groups of top beams, wherein adjacent ends of the two groups of top beams are fixedly connected, the two groups of upright posts are respectively and fixedly connected with the bottoms of the distal ends of the two groups of top beams, the bottoms of the upright posts are fixedly arranged on a base, the top beams are provided with first through holes, the first through holes are positioned at the joint of the top beams and the upright posts, and the middle parts of the top beams are provided with second through holes;
the two ends of the auxiliary beam are fixedly connected with the two groups of upright posts respectively;
the two ends of the supporting beam are fixedly connected with the top of the auxiliary beam and the joint of the two groups of top beams respectively;
the reinforcing mechanism is arranged on the left side and the right side of the portal frame, comprises a fastening steel cable, a first steering seat, a connecting rod, a second steering seat, a first mounting seat and a second mounting seat, screw thread sections are arranged at two ends of the fastening steel cable, the first mounting seat is fixedly arranged on the base, a third through hole is arranged at the top of the first mounting seat, a stand column is inserted on the first mounting seat, the second mounting seat is fixedly arranged on the inner side of the top of the supporting beam, the first steering seat is positioned at the position of the first through hole and is fixedly arranged on the inner side of the top beam, the connecting rod is positioned on one side of the second through hole far away from the first through hole, the connecting rod is fixedly arranged at the bottom of the top beam, the second steering seat is fixedly arranged at the bottom of the connecting rod, one end of the fastening steel cable penetrates through the top of the first mounting seat and is fixedly connected with the mounting seat through a nut, the vertical section of the fastening steel cable penetrates through the through hole and is in butt with the first steering seat, the transverse section of the fastening steel cable penetrates through the second through hole and is butt with the second steering seat, and the other end of the fastening steel cable penetrates through the supporting beam and is fixedly connected with the second mounting seat through the nut.
2. The prestressed reinforcement door-type steel frame structure of claim 1, wherein: the upright posts, the top beams, the auxiliary beams and the supporting beams are all H-shaped steel.
3. The prestressed reinforcement door-type steel frame structure of claim 1, wherein: the two groups of reinforcing plates are symmetrically distributed on the left side and the right side of the supporting beam, two ends of each reinforcing plate are welded with the supporting beam and the auxiliary beam respectively, and a triangle is formed between each reinforcing plate and the supporting beam and between each reinforcing plate and the auxiliary beam.
4. The prestressed reinforcement door-type steel frame structure of claim 2, wherein: and a plurality of groups of rib plates are arranged on the inner side of the top of the upright post at intervals along the axial direction, and the fastening steel cable passes through the rib plates.
5. The prestressed reinforcement door-type steel frame structure of claim 1, wherein: the side walls of the first through hole and the second through hole are cambered surfaces.
6. The prestressed reinforcement door-type steel frame structure of claim 1, wherein: the first mounting seat is fixedly connected with the base through a bolt, and the second mounting seat is fixedly connected with the supporting beam through a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320725443.1U CN219863585U (en) | 2023-04-05 | 2023-04-05 | Prestress reinforced door-type steel frame structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320725443.1U CN219863585U (en) | 2023-04-05 | 2023-04-05 | Prestress reinforced door-type steel frame structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219863585U true CN219863585U (en) | 2023-10-20 |
Family
ID=88333310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320725443.1U Active CN219863585U (en) | 2023-04-05 | 2023-04-05 | Prestress reinforced door-type steel frame structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219863585U (en) |
-
2023
- 2023-04-05 CN CN202320725443.1U patent/CN219863585U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1405958B1 (en) | Device for connecting a beam to pillars or similar supporting structural elements for erecting buildings | |
| EP0211671B1 (en) | Trussed girder and method of constructing the roof framing of a building using the trussed girder | |
| CN1078283A (en) | Reinforced steel beam and girder | |
| CN113241998A (en) | Flexible photovoltaic fixed bolster of prestressing force | |
| CN110630014A (en) | Detachable beam-string type temporary supporting structure for floor bearing plate | |
| CN1115449C (en) | Prestressed large-span solid portal steel frame and its construction process | |
| CN219863585U (en) | Prestress reinforced door-type steel frame structure | |
| CN113175089A (en) | Construction method of large-span heavy cantilever truss | |
| KR20090027075A (en) | Beam, structure, parking structure having the beam, method of manufacturing the beam and method of manufacturing structure without column | |
| CN113982113B (en) | Three-section beam and column structure and combined frame type structure thereof | |
| CN111501521A (en) | Assembled aluminum alloy prestress truss bridge | |
| CN213572585U (en) | Thin-wall steel arc beam | |
| CN1231644C (en) | Modular type bearing structure | |
| CN109610640B (en) | Portal rigid frame connection structure based on composite column limb | |
| JP2014177783A (en) | Structure demolition system | |
| KR101250473B1 (en) | three-dimensional structure under tension system | |
| JP4933229B2 (en) | Seismic reinforcement structure | |
| KR20090011362A (en) | Form system for casting slab concrete of concrete-filled steel tube girder bridge | |
| CN215164709U (en) | A triangular bracket that is used for big cantilever to stride footpath bent cap construction greatly | |
| CN219118555U (en) | Truss of stable connection easy to assemble | |
| CN213766424U (en) | Pretensioning prestressed concrete assembled prefabricated pedestal | |
| CN218815194U (en) | Assembled light-duty bearing structure | |
| CN217378590U (en) | Bailey frame structure | |
| CN219864231U (en) | Concrete prestress reinforcing structure with anchoring reinforcement | |
| CN217000813U (en) | Prevent torsional building truss structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |