CN213448913U - Bidirectional cable clamp for spoke type cable truss structure - Google Patents
Bidirectional cable clamp for spoke type cable truss structure Download PDFInfo
- Publication number
- CN213448913U CN213448913U CN202022074815.8U CN202022074815U CN213448913U CN 213448913 U CN213448913 U CN 213448913U CN 202022074815 U CN202022074815 U CN 202022074815U CN 213448913 U CN213448913 U CN 213448913U
- Authority
- CN
- China
- Prior art keywords
- cable
- plate
- groove
- radial
- plate body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
A bidirectional cable clamp for a spoke type cable truss structure is used for connecting a ring radial cable of a full-tension structural system, is of a rectangular plate structure as a whole and comprises a plate body, a cable groove, a cover plate, a force control bolt and a radial connecting lug plate; the cable groove is arranged on the upper plate surface and the lower plate surface of the plate body, the annular cable is arranged in the cable groove, and the extension directions of the annular cable and the annular cable are the same; the cover plate is covered on the cable groove; the force control bolts are vertically arranged on two sides of the cable groove, penetrate through the cover plate and are fixedly connected with the plate bodies on the two sides of the cable groove, and the friction force between the cover plate and the annular cable is controlled through rotation; the radial connecting lug plate is vertically arranged on the outer side surface of the plate body close to the radial cable and is connected with an anchorage device pin shaft at the end part of the radial cable through a pin hole. The utility model discloses a cable clip is experimental with the anti-skidding of cable, confirms the moment of torsion of accuse power bolt, prevents to slide through frictional resistance between cable and the cable clip, applys certain pretension to the hoop cable, ensures two-way cable effective connection, pretension's effective transmission, prevents sliding of tie point.
Description
Technical Field
The utility model relates to a spoke formula cable truss node design technical field, concretely relates to two-way cable clamp for spoke formula cable truss structure.
Background
The spoke type cable truss is one of prestress structure systems, which is similar to the wheel of a bicycle in structure, and is connected to a tension inner ring through a radial cable by a compression outer ring rigid structure. Because the pull force is applied to the pull rope in advance and the pressure balance of the outer ring structure is realized to form the structural rigidity together, the whole structure belongs to a self-balancing stress system, only the vertical force transmission to the main structure is the bending moment effect, and the pull rope has the characteristics of light modeling, large space span, light dead weight, less steel consumption and the like.
How to realize that certain pretension is applied to the circumferential cables while the circumferential cables are connected with the radial cables, so that the position state of the awning system reaches the initial state of the design requirement, and the main points of construction control are to ensure the effective connection between the radial cables and the circumferential cables, the effective transmission of the pretension and the prevention of the slippage of a connection point. In the prior art, the conventional rigging is heavy, on one hand, the connection strength of the radial cable and the circumferential cable cannot be effectively guaranteed, the connection point is not stable enough in reliability and easy to cause slippage, and on the other hand, no effective measures are taken to guarantee that the force of the radial cable can be effectively transferred according to the force transfer angle required by design.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a two-way cable clamp for spoke formula cable truss structure, the special cable clamp of design realizes the effective connection of radial cable and hoop cable in order to solve the problem of being connected of radial cable and hoop cable, ensures that the tie point is firm reliable, prevent to slide, makes radial cable power carry out effectual transmission according to the biography power angle of designing the requirement simultaneously.
In order to achieve the technical purpose, the utility model adopts the following technical scheme:
the utility model provides a two-way cable clamp for spoke formula cable truss structure for connect hoop cable and radial cable of full tension structure system, its characterized in that: the whole body is a rectangular plate structure and comprises a plate body, a cable groove, a cover plate, a force control bolt and a radial connecting lug plate; the plate body is of a rectangular block structure, the plate body is arranged at intervals along the annular cable, the length direction of the plate body is perpendicular to the extension direction of the annular cable, and the waist of the plate body is provided with a weight reducing structure; the cable groove is arranged on the upper plate surface and the lower plate surface of the plate body, the annular cable is arranged in the cable groove, and the extension directions of the annular cable and the cable groove are the same; the cover plate is covered on the cable groove; the force control bolts are vertically arranged on two sides of the cable groove, penetrate through the cover plate and are fixedly connected with the plate bodies on two sides of the cable groove, and the friction force between the cover plate and the circumferential cable is controlled through rotation; the radial connecting lug plate is vertically arranged on the outer side surface of the plate body close to the radial cable and is connected with an anchorage device pin shaft at the end part of the radial cable through a pin hole.
As a preferred technical scheme of the utility model, the waist of the plate body is provided with a weight reduction structure, which comprises a weight reduction groove arranged on one side of the plate body far away from the radial cable and a weight reduction cavity arranged on one side close to the radial cable; the weight reduction grooves and the weight reduction cavities are symmetrically arranged in pairs, and the waist of the plate body is divided to form a cross-shaped web plate structure.
Preferably, the number of the cable grooves on the upper plate surface and the lower plate surface of the plate body is equal and the number of the cable grooves on the upper plate surface and the lower plate surface is 1-10.
Preferably, the number of the cable grooves is four, two pairs of upper and lower plate surfaces are respectively provided, correspondingly, the annular cable is formed by combining eight steel cables, is divided into an upper layer and a lower layer, and is respectively embedded in the eight cable grooves.
Further preferably, the number of the cover plates is the same as that of the cable grooves, or a plurality of cover plates covering adjacent cable grooves are combined into a whole.
Preferably, the cover plate is arranged in the middle of the plate body, and the width of the cover plate is 1/3-1/2 of the width of the plate body; the bottom surface of the cover plate is provided with a groove corresponding to the cable groove, and the groove and the cable groove are buckled to form an annular cable positioning groove.
Further preferably, the cable groove is a sinking groove, and strip-shaped wings are formed on two sides of the sinking groove in a protruding mode at the position where the cover plate is not arranged.
Further preferably, the inner side of the strip-shaped wing is a curved surface, the curved surface and the cable groove form a smooth transition, the annular cable positioning groove formed by combining the curved surface and the cable groove is a closed arc surface with a small curvature and a radius of a1 on one side, and a open arc surface with a large curvature and a radius of a2 on the other side, wherein a2= (1.5-5) × a 1.
Preferably, the number of the force control bolts on the two sides of each cable groove is 2-5 pairs; the plate bodies on the two sides of the cable groove are provided with bolt blind holes, the plate bodies of the cover plate on the two sides of the cable groove are provided with bolt through holes, and the force control bolts penetrate through the bolt through holes and then enter the bolt blind holes to be fixed.
More preferably, the radial connecting lug plate vertical circumferential cables are arranged on the central plane of the plate body and are of an integrated structure with the plate body.
Compared with the prior art, the utility model discloses a technical advantage lies in:
1. the utility model discloses connecting device has bulky, and light in weight, characteristics that intensity is high guarantee structure atress safety and pleasing to the eye effect.
2. The utility model effectively realizes the effective and accurate transmission of the force on each radial cable through the cable clamp connecting component;
3. the utility model discloses an internal bulky steel casting adopts the European standard preparation for the first time, has pioneering meaning.
To sum up, the utility model discloses, through the anti-skidding test of cable clamp and cable, confirm the moment of torsion of accuse power bolt to realize preventing through frictional resistance between cable and the cable clamp and slide, when realizing that hoop cable and radial cable are connected, apply certain pretension to the hoop cable, make the position of awning system reach the initial state of designing requirement, ensure radial cable and hoop cable effective connection, pretension's effective transmission, prevent that the sliding of tie point is construction control.
Drawings
Fig. 1 is a schematic view of the overall structure of a connection device according to the present invention;
fig. 2 is a front view of a connection device according to the present invention;
fig. 3 is a top view of the connection device according to the present invention;
fig. 4 is a schematic view of the arrangement structure of the cable groove according to the present invention;
fig. 5 is a schematic view of the shape of the cable groove according to the present invention;
fig. 6 is a front view of a cover plate according to the present invention;
fig. 7 is a plan view of a cover plate according to the present invention;
fig. 8 is a schematic view of a use state of the connecting device according to the present invention.
Reference numerals: 1-annular cables, 2-radial locks, 3-plate bodies, 4-cable grooves, 5-cover plates, 6-force control bolts, 7-cross-shaped webs, 8-strip-shaped protective wings, 9-radial connecting lug plates, 10-anchors, 11-weight reduction grooves, 12-weight reduction cavities and 13-support structures.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment of the utility model provides a for a certain city sports center-stadium cable structure special construction project, cable truss construction need establish necessary and reasonable prestressing force in every cable and member, but the structure side shaping and reach the initial state that accords with the design, otherwise not only structural shape is uncontrollable, and structural security is difficult to guarantee moreover. The engineering has the advantages that the prestressing stress exists on the upper radial cables and the lower radial cables, the prestressing stress also exists on the upper ring cables, the lower ring cables and the masts, obviously, the active tensioning of all the cables cannot be realized in the engineering, a large amount of equipment and personnel are required to be invested, the construction period is long, and the complexity of the node structure is increased.
Referring to fig. 1-3, a bidirectional cable clip for a spoke type cable truss structure is used for connecting a circumferential cable 1 and a radial cable 2 of a full tension structural system, and is characterized in that: the whole rectangular plate structure comprises a plate body 3, a cable groove 4, a cover plate 5, a force control bolt 6 and a radial connecting lug plate 9.
In this embodiment, the plate body 3 has an overall thickness of 600mm, a total length of 1600mm and a width of 600 mm; the cable groove 4 is arranged on the upper plate surface and the lower plate surface of the plate body 3, the annular cable 1 is arranged in the cable groove 4, and the extension directions of the two are the same; the cover plates 5 are covered on the cable slots 4, the number of the cover plates 5 is the same as that of the cable slots 4, or a plurality of cover plates 5 covering the adjacent cable slots 4 are combined into a whole;
as shown in fig. 4 and 5, the number of the cable grooves 4 on the upper and lower plate surfaces of the plate body 3 is equal and corresponding, and the number is 1 to 10, in this embodiment, it is preferable that the number of the cable grooves 4 is four, two pairs of the upper and lower plate surfaces are respectively provided, one pair is provided on both sides of the plate body 3, the distance from the two outermost cable grooves 4 to the edge is 200mm, the distance between the two middle cable grooves 4 is 750mm, and the distance between the two paired cable grooves 4 is 250 mm. The annular cable 1 is formed by combining eight steel cables, is divided into an upper layer and a lower layer, and is respectively embedded in eight cable grooves 4. The cable groove 4 is a sinking groove, the two sides of the sinking groove are protruded to form strip-shaped wings 8 at the position where the cover plate 5 is not arranged, the height of the strip-shaped wings 8 is 65mm, and the corners are all subjected to round corner treatment with radius R5; the inner side of each strip-shaped wing 8 is a curved surface and forms smooth transition with the cable groove 4, the curved surface and the cable groove 4 are combined to form a circumferential cable positioning groove, one side of the circumferential cable positioning groove is a small-curvature closing arc surface with the radius of a1, the other side of the circumferential cable positioning groove is a large-curvature opening arc surface with the radius of a2, and a2= 1.5-5 × a 1; in this example, a1 is 41mm and a2 is 140 mm.
As shown in fig. 6-7, the cover plate 5 is arranged in the middle of the plate body 3, and the width of the cover plate is 1/3-1/2 of the width of the plate body 3; the bottom surface of the cover plate 5 is provided with a groove corresponding to the cable groove 4, and the groove is buckled with the cable groove 4 to form an annular cable positioning groove. The force control bolts 6 are vertically arranged on two sides of the cable groove 4, penetrate through the cover plate 5 and are fixedly connected with plate bodies on two sides of the cable groove, and the friction force between the cover plate 5 and the annular cable 1 is controlled through rotation; the number of the force control bolts 6 on two sides of each cable groove 4 is 2-5 pairs; the plate bodies 3 on the two sides of the cable groove 4 are provided with bolt blind holes, the plate bodies of the cover plate 5 on the two sides of the cable groove 4 are provided with bolt through holes, and the force control bolts 6 penetrate through the bolt through holes and then enter the bolt blind holes to be fixed; in the present embodiment, the size of the cover plate 5 is 230 × 260 × 48mm, and three pairs of bolt holes are provided.
The radial connecting lug plate 9 is vertically arranged on the outer side surface of the plate body close to the radial cable 2 and is in pin shaft connection with an anchorage device 10 at the end part of the radial cable 2 through a pin hole. The radial connecting lug plate 9 is vertical to the circumferential cable 1 and is arranged on the central plane of the plate body 3, and the radial connecting lug plate and the plate body 3 are of an integrated structure.
The plate body 3 is of a rectangular structure and is arranged at intervals along the annular cable, and the length direction of the plate body is perpendicular to the extension direction of the annular cable 1. A weight reducing structure is arranged at the waist part of the plate body 3 and comprises a weight reducing groove 11 arranged on one side surface of the plate body 3 far away from the radial cable and a weight reducing cavity 12 close to one side of the radial cable 2; the weight reduction grooves 11 and the weight reduction cavities 12 are symmetrically arranged in pairs, the waist of the plate body 3 is divided into cross-shaped webs 7, the length and the thickness of each cross-shaped web 7 are equal, two side faces of the weight reduction grooves 11 facing outwards are open, the weight reduction cavities 12 are only open towards one side, the height of each weight reduction cavity 12 is identical to that of the corresponding weight reduction cavity in the vertical direction and is 260mm, two side plates of the cross-shaped web 7 are vertically arranged, the plate thickness is 80mm, the middle part of the plate body 3 is divided into 4 areas, the weight reduction grooves 11 and the weight reduction cavities 12 are respectively arranged in the 4 areas, and the thicknesses of a top plate and a bottom; the corner positions of the weight-reducing grooves 11 and the weight-reducing cavities 12 are rounded by R30.
Furthermore, the utility model provides an foretell a method of use that is used for two-way cable of spoke formula cable truss structure to press from both sides still, figure 8 is the utility model relates to a connecting device's user state schematic diagram waits that hoop cable 1 sets up the completion after, sets up apron 5, and its bottom supports through bearing structure 13, specifically includes following step during the use:
step one, establishing a stress simulation model according to a structure initial state bitmap provided by design;
secondly, determining the prestress values of the circumferential cables 1 and each radial cable 2 through stress simulation analysis;
analyzing the stress density of the whole system through stress simulation of the structural system, and determining the stress value and the stress included angle of the radial cable 2 and the installation position of the connecting device by combining the stress value of each cable;
fourthly, making position marks for installing the connecting devices on the cable body according to the determined installation positions of the connecting devices during cable twisting;
fifthly, mounting connecting devices on the circumferential cable 1 at intervals, temporarily fixing a cover plate 5 through a force control bolt 6 to apply pressure, increasing friction force between the cable and a cable groove, and preventing slippage;
sixthly, integrally constructing the annular cable 1 in place;
seventhly, constructing the upper radial cable in place, and fixedly connecting an anchorage device 10 at the end part of the upper radial cable with the radial connecting lug plate 9;
step eight, the cable system is lifted to a certain height initially, and other auxiliary rods in the structural system are installed;
ninthly, constructing the lower radial cable in place, and fixedly connecting an anchorage device 10 at the end part of the lower radial cable with the radial connecting lug plate 9;
step ten, starting lifting and tensioning of the whole cable truss system, controlling the pretension of each cable, and realizing the initial configuration required by the design;
and eleventh, carrying out subsequent construction of the panel and the decorative structure.
The utility model discloses the main measure of taking is that adopt passive stretch-draw technique to carry out the stretch-draw of cable truss, promptly: the lower radial cable of the key is selected as an active tension cable, and other cables and rods are passively tensioned. The full tension structure is different from a common prestressed steel structure, and when the unstressed length of all the components (including the pull cable and the pressure rod) is fixed, the formed shape and the prestressed state are correspondingly determined. Therefore, the passively tensioned cable-strut system is assembled according to a certain unstressed length, the actively tensioned cable is used as a port for inputting prestress, and the active cable is tensioned to establish a preset prestress in the whole structure. The selection of the active tensioning cable is the key. The engineering cable truss is radiated along the radial direction, and radial cables (upper radial cables or lower radial cables) are selected as active tensioning cables to ensure the tensioning quality of the structure.
The utility model relates to a prestressing force steel construction is spoke formula cable truss structure, and the main structure is pressed the ring post in by the rigidity, goes up the ring cable from top to bottom, goes up radial cable, lower radial cable, cross cable, mast and inner ring mast and constitutes, belongs to the full tension structure system of prestressing force self-balancing. Full tension structural systems must be tensioned to build the necessary pre-stress in the structure to provide structural rigidity to carry loads and maintain shape. Therefore, the prestress is an important content of the structure, besides the geometrical parameters and mechanical properties of the members themselves, the geometrical topological relation between the members and the connection nodes. The "forces" and "shapes" in the cable-truss structure are uniform, with the "forces" being balanced across the corresponding "shapes". Therefore, the stay cable construction needs to perform double control on the force and the shape, namely, control the cable force and the structural shape.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Claims (5)
1. A two-way cable clip for spoke type cable truss structure is used for connecting a circumferential cable (1) and a radial cable (2) of a full tension structural system, and is characterized in that: the large-volume steel casting is integrally formed, is of a rectangular plate structure and comprises a plate body (3), a cable groove (4), a cover plate (5), a force control bolt (6) and a radial connecting lug plate (9); the plate body (3) is of a rectangular block structure and is arranged at intervals along the annular cable, the length direction of the plate body is vertical to the extension direction of the annular cable (1), and the waist part of the plate body is provided with a weight reducing structure; the cable groove (4) is arranged on the upper plate surface and the lower plate surface of the plate body (3), the annular cable (1) is arranged in the cable groove (4), and the extension directions of the annular cable and the annular cable are the same; the cover plate (5) is arranged above the cable groove (4) in a covering mode; the force control bolts (6) are vertically arranged on two sides of the cable groove (4), penetrate through the cover plate (5) and are fixedly connected with plate bodies on two sides of the cable groove, and the friction force between the cover plate (5) and the annular cable (1) is controlled through rotation; a groove is formed in the bottom surface of the cover plate (5) corresponding to the cable groove (4), and the groove is buckled with the cable groove (4) to form an annular cable positioning groove;
the plate bodies (3) on the two sides of the cable groove (4) are provided with bolt blind holes, the plate bodies of the cover plate (5) on the two sides of the cable groove (4) are provided with bolt through holes, and the force control bolts (6) penetrate through the bolt through holes and then enter the bolt blind holes to be fixed;
the cable groove (4) is a sinking groove, and strip-shaped protective wings (8) are formed on two sides of the sinking groove in a protruding mode at positions where the cover plate (5) is not arranged; the inner side of each strip-shaped wing (8) is a curved surface, the corners of the strip-shaped wings are all subjected to fillet treatment with a radius R5 to form smooth transition with the cable grooves (4), and annular cable positioning grooves formed by combining the strip-shaped wings and the cable grooves are provided with a small-curvature closing-up arc surface with a radius of a1 on one side and a large-curvature opening arc surface with a radius of a2 on the other side, wherein a2= (1.5-5) × a 1;
the radial connecting lug plates (9) are vertically arranged on the outer side surface of the plate body close to the radial cables (2), the vertical circumferential cables (1) are arranged on the central surface of the plate body (3), the axis of the plate surface and the horizontal central axis of the plate body (3) form an acute angle, and the acute angle is not more than 45 degrees;
the radial connecting lug plate (9) is connected with an anchorage device (10) at the end part of the radial cable (2) through a pin hole in a pin shaft manner.
2. A bi-directional cable clamp for a spoke-type cable truss structure according to claim 1, wherein: the a1 is 41mm, and the a2 is 140 mm.
3. A bi-directional cable clamp for a spoke-type cable truss structure according to claim 1, wherein: the weight reducing structure comprises a weight reducing groove (11) arranged on one side surface of the plate body (3) far away from the radial cable and a weight reducing cavity (12) close to one side of the radial cable (2); the weight reduction grooves (11) and the weight reduction cavities (12) are symmetrically arranged in pairs, and the waist of the plate body (3) is divided into cross-shaped webs (7).
4. A bi-directional cable clamp for a spoke-type cable truss structure according to claim 1, wherein: a plurality of cover plates (5) covering the adjacent cable grooves (4) are combined into a whole.
5. A bi-directional cable clamp for a spoke-type cable truss structure according to claim 1, wherein: the cover plate (5) is arranged in the middle of the plate body (3), and the width of the cover plate is 1/3-1/2 of the width of the plate body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022074815.8U CN213448913U (en) | 2020-09-21 | 2020-09-21 | Bidirectional cable clamp for spoke type cable truss structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022074815.8U CN213448913U (en) | 2020-09-21 | 2020-09-21 | Bidirectional cable clamp for spoke type cable truss structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213448913U true CN213448913U (en) | 2021-06-15 |
Family
ID=76327245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022074815.8U Active CN213448913U (en) | 2020-09-21 | 2020-09-21 | Bidirectional cable clamp for spoke type cable truss structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213448913U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116024897A (en) * | 2023-03-29 | 2023-04-28 | 北京市建筑工程研究院有限责任公司 | Anti-slip anchoring split rope clamp |
-
2020
- 2020-09-21 CN CN202022074815.8U patent/CN213448913U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116024897A (en) * | 2023-03-29 | 2023-04-28 | 北京市建筑工程研究院有限责任公司 | Anti-slip anchoring split rope clamp |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106894523B (en) | Connecting joint of rectangular steel pipe concrete column and steel reinforced concrete beam | |
| CN112064893A (en) | Radial and circumferential cable system connecting device of spoke type cable truss structure and using method thereof | |
| CN213448913U (en) | Bidirectional cable clamp for spoke type cable truss structure | |
| CN111475883B (en) | Arch rib line shape control method for large-span steel pipe concrete arch bridge | |
| CN107663903B (en) | Connecting structure of assembled concrete shear wall and connecting beam and prefabricating and assembling method | |
| CN109972494B (en) | Design and construction method of large-segment hoisting self-anchored suspension bridge with hinges between segments | |
| CN109775628B (en) | Double-rope lifting device and construction method thereof | |
| CN102733486A (en) | High-efficiency ductile node for prefabrication assembly concrete frame | |
| CN109098280A (en) | Bolt assembled beam-column frame structure and its assembly method | |
| CN208934109U (en) | Bolt assembled beam-column frame structure | |
| LU501962B1 (en) | Long Platform Guy-Wire Hanging Basket and Construction Method For Main Girder Section | |
| WO2020071700A1 (en) | Frp panel assembly structure using symmetrical frp panel and cover-type connecting panel, deck having same and method for constructing deck | |
| CN112227204A (en) | Side span pushing closure construction method for cable-stayed bridge | |
| CN114412071B (en) | Through beam type double-cable structure and tensioning method | |
| CN201738238U (en) | Cable stayed anchor plate type anchor of cable stayed bridge cable tower | |
| CN107152107B (en) | Precast concrete wall panel class component wirerope detour splicing construction and method | |
| CN211920627U (en) | Light lifting appliance for dismantling cantilever box girder segment | |
| CN201539099U (en) | Adjusting seam plate template | |
| CN214031386U (en) | Hoisting tool for immersed tube template | |
| CN211545724U (en) | Anti-storm wind device of crane and crane set | |
| CN209211772U (en) | A kind of plate side attachment device | |
| CN219411514U (en) | Reinforced anchoring structure for section steel in inclined column | |
| CN213328631U (en) | Mortise and tenon connection steel-concrete combined assembled arch bridge | |
| CN212740390U (en) | Be applicable to prefabricated assembly tubular pile hoist device | |
| CN215857014U (en) | Assembled temporary road |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |