CN218562762U - Slow bonding prestressed rib split heads that can carry out altitude mixture control - Google Patents
Slow bonding prestressed rib split heads that can carry out altitude mixture control Download PDFInfo
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- CN218562762U CN218562762U CN202222487753.2U CN202222487753U CN218562762U CN 218562762 U CN218562762 U CN 218562762U CN 202222487753 U CN202222487753 U CN 202222487753U CN 218562762 U CN218562762 U CN 218562762U
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Abstract
The utility model provides a slow-bonding prestressed tendon split heads capable of adjusting height, which comprises a vertical frame and at least two supporting and limiting modules movably arranged on the vertical frame; the vertical frame comprises a vertical rod, and a first thread section is arranged on the vertical rod; each supporting and limiting module comprises a first height adjusting piece, a supporting piece and a limiting piece; the first height adjusting piece is in threaded connection with a first threaded section of the vertical rod; the supporting piece comprises a horizontal supporting part and a vertical first limiting part; the first limiting part is provided with a second threaded section; the limiting part comprises a second height adjusting part and a horizontal second limiting part; the second height adjusting piece is in threaded connection with the second threaded section; the second limiting part is arranged above the supporting part at an interval. The utility model discloses a support spacing module's altitude mixture control, effective control prestressing tendons vertical positioning guarantees to satisfy the design rise requirement. Effectively avoid the prestressing tendons to receive the disturbance in the construction process such as concrete placement.
Description
Technical Field
The utility model relates to a civil engineering technical field especially relates to a slow bonding prestressing tendons split heads that can carry out altitude mixture control.
Background
At present, in the construction of a slowly-bonded prestressed structural floor slab, slowly-bonded prestressed tendons are criss-cross, the line form is a parabola, the mark height of each point is different, and the rise and the line form of each slowly-bonded prestressed tendon need to be strictly controlled according to a beam pattern. In order to ensure the design rise and line type requirements, the split heads with different heights are arranged along the slow bonding prestressed tendons to adjust the rise of each slow bonding prestressed tendon.
The existing common form of the slow-bonding prestressed tendon split heads is a steel bar split head or a finished product prefabricated split head. In the two types of construction, the split heads need to be machined and prefabricated for different rise positions of the slow-bonding prestressed tendons, and the split heads are fixed in height and single in supporting position, so that the linear and rise positions of the criss-cross positions of the prestressed tendons are difficult to be accurately positioned. After construction is completed, the prestressed tendons are easy to be disturbed to cause rise and linear deviation from design requirements.
SUMMERY OF THE UTILITY MODEL
The utility model provides a solve above-mentioned technical problem and provide a slow bonding prestressing tendons split heads that can carry out altitude mixture control to stirrup height-fixing among the solution prior art is difficult to carry out the problem of accurate location to prestressing tendons vertically and horizontally staggered position line type, rise.
The utility model provides a slow-bonding prestressed tendon split heads capable of adjusting height, which comprises a vertical frame and at least two supporting and limiting modules movably arranged on the vertical frame; the upright frame comprises an upright rod which is vertically arranged, and a first thread section is arranged on the upright rod; each supporting and limiting module comprises a first height adjusting piece, a supporting piece and a limiting piece;
the first height adjusting piece is in threaded connection with the first threaded section of the vertical rod;
the supporting piece comprises a horizontal supporting part and a vertical first limiting part; one end of the supporting part is fixedly connected with the first height adjusting part, the other end of the supporting part is connected with the lower end of the first limiting part, and a second threaded section is arranged on the first limiting part;
the limiting part comprises a second height adjusting part and a horizontal second limiting part; the second height adjusting piece is in threaded connection with the second threaded section; one end of the second limiting part is fixedly connected with the second height adjusting part, and the second limiting part is arranged above the supporting part at intervals.
In one embodiment, one or more groups of supporting and limiting assemblies are uniformly arranged on the side wall of the first height adjusting part of each supporting and limiting module along the circumferential direction, each group of supporting and limiting assemblies comprises two supporting and limiting units symmetrically arranged along the radial direction of the first height adjusting part, and each supporting and limiting unit comprises one supporting part and one limiting part.
In one embodiment, the first height adjustment member comprises a first adjustment nut.
In one embodiment, the support member is an L-shaped rod, and the upright first position-limiting portion of the support member is spaced apart from the upright rod.
In one embodiment, the second height adjustment comprises a second adjustment nut.
In one embodiment, the stand further comprises a backing plate, the bottom end of the vertical rod is fixedly connected with the backing plate, and the vertical rod is a threaded rod.
In one embodiment, the vertical surfaces of at least two supporting members for supporting the limiting module on the vertical rods are vertical.
The utility model has the advantages that:
1. at least two supporting limit modules are connected to the vertical rod of the vertical frame in a threaded manner, the supporting pieces of the supporting limit modules are used for positioning and supporting the prestressed tendons, the height adjustment of the supporting limit modules is realized by utilizing threaded fit, the plane positions of control points such as the lowest point, the reverse bending point, the highest point, the longitudinal and transverse staggered points and the like of the prestressed tendons can be positioned in advance, and the plane positioning of each control point of each prestressed tendon is accurately positioned.
2. Because the utility model discloses a height-adjustable of the spacing module of support of stirrup consequently in the prestressed structure work progress, need not to carry out split heads processing, prefabrication to the different rise positions of prestressing tendons, reduces the work progress, effectively promotes the efficiency of construction. In the construction process of the prestressed structure, the height of the supporting and limiting module can be adjusted at each control point according to the prestressed tendon shape diagram, so that the vertical positioning of the prestressed tendon is effectively controlled, and the requirement of design rise is met.
3. Through set up the locating part on support piece, utilize the height of second altitude mixture control piece regulation second spacing to can be fixed in the prestressing tendons of different diameters between supporting part and the spacing portion of second, can effectively avoid prestressing tendons to receive the disturbance in the work progress such as concrete placement.
Drawings
Fig. 1 is a schematic view of the structure of the slow-bonding prestressed tendon split heads of the present invention with adjustable height.
Fig. 2 is a side view of the structure of fig. 1.
In the figure: 1. erecting a rod; 2. a base plate; 3. a first height adjustment member; 4. a support portion; 5. a first limiting part; 6. a second height adjustment member; 7. a second limiting part; 8. and (4) prestressed tendons.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
As shown in fig. 1 and 2, the invention provides a height-adjustable slow-bonded prestressed tendon 8 split heads, which comprises a stand and at least two supporting and limiting modules movably arranged on the stand. In this embodiment, the grudging post includes pole setting 1 and the backing plate 2 of setting in the bottom of pole setting 1 that erects the setting, and pole setting 1 and backing plate 2 fixed connection, for example welding are provided with first screw thread section on the pole setting 1. In some embodiments, the vertical rod 1 is a threaded rod, so that the first thread section is distributed on the whole outer wall of the rod body of the vertical rod 1.
In this embodiment, only one stirrup is illustrated, and in practical use, a plurality of stirrups should be used simultaneously to provide effective support and positioning for the tendon 8, and the method for supporting the tendon 8 by the plurality of stirrups is similar to the prior art. The present embodiment mainly describes the case where a single stirrup supports the tendon 8.
Each supporting and limiting module of the present embodiment includes a first height adjusting member 3, a supporting member, and a limiting member.
Wherein, the lateral wall of the first height adjusting part 3 of each supporting and limiting module is uniformly provided with one or more groups of supporting and limiting components along the circumferential direction. In this embodiment, each support and position limiting module comprises a set of support and position limiting assemblies arranged along the radial direction of the first height adjusting part 3.
Each group of supporting and limiting assemblies comprises two supporting and limiting units which are symmetrically arranged along the radial direction of the first height adjusting piece 3, and each supporting and limiting unit comprises a supporting piece and a limiting piece.
Wherein the first height adjustment 3 comprises a first adjustment nut. The first height adjusting member 3 is threadedly connected to the first threaded section of the vertical rod 1. The first adjusting nut is in threaded fit with the first thread section of the vertical rod 1, so that the height of the first adjusting nut is adjusted, and the height of the supporting limiting component of the supporting limiting module at which the first adjusting nut is located is adjusted synchronously.
The supporting piece comprises a horizontal supporting part 4 and a vertical first limiting part 5; one end of the supporting part 4 is welded and fixed with the first height adjusting part 3, the other end of the supporting part 4 is welded and fixed with the lower end of the first limiting part 5, and the first limiting part 5 is provided with a second threaded section. The upper end of the first stopper portion 5 is higher than the support portion 4. The support piece is an L-shaped rod body, and a first vertical limiting part 5 of the support piece keeps a distance from the vertical rod 1. As shown in fig. 1, the vertical rod 1 is provided with two supporting and limiting modules at intervals along the height direction, and the supporting and limiting modules at higher positions are taken as an example, and include two supporting members distributed on two sides of the first height adjusting member 3. Each supporting member and the vertical rod 1 enclose to form a U-shaped clamping space, and the prestressed tendons 8 are placed in the clamping space. The height of the first height adjusting member 3 determines the height of the supporting members at both sides thereof, thereby determining the height of the tendon 8 disposed on the U-shaped clamping space.
The limiting piece comprises a second height adjusting piece 6 and a horizontal second limiting part 7; the second height adjusting piece 6 is in threaded connection with the second threaded section; one end of the second limiting part 7 is welded and fixed with the second height adjusting part 6, and the second limiting part 7 is arranged above the supporting part 4 at intervals.
Continuing with the example of the supporting and limiting module with a higher setting position shown in fig. 1, the second threaded section on the first limiting portion 5 of the supporting member is in threaded connection with the second height adjusting member 6, and the second height adjusting member 6 includes a second adjusting nut. Namely, the second adjusting nut is in threaded fit with the second threaded section of the first limiting part 5 so as to adjust the height of the second adjusting nut. Since the second position-limiting portion 7 is fixedly connected to the second adjusting nut, the height change of the second adjusting nut also causes the height change of the second position-limiting portion 7. The second limiting portion 7 is used for closing the upper end of the U-shaped clamping space, the height of the second limiting portion 7 determines the height of the U-shaped clamping space, and when the prestressed tendons 8 with different diameters are located in the clamping space, the height of the second limiting portion 7 is adjusted to enable the prestressed tendons to be pressed or abutted against the upper end of the prestressed tendons 8, so that vertical displacement of the prestressed tendons is limited, and the prestressed tendons 8 are prevented from being disturbed in the concrete pouring construction process.
In some embodiments, the stop comprises two second adjustment nuts and a horizontal second stop rod disposed between the two second adjustment nuts. One end of second gag lever post is provided with the round hole, support piece's first spacing portion 5 passes this round hole, the second gag lever post can be followed first spacing portion 5's direction of height and slided, two second adjusting nut respectively with first spacing portion 5's second screw thread section threaded connection, adjust the height of a second adjusting nut that is in the lower extreme of second gag lever post, can adjust the height of this second gag lever post, a second adjusting nut that is in the upper end of second gag lever post is used for locking this second gag lever post and is in between two second adjusting nut, the vertical displacement of restriction second gag lever post. When the height of the second limiting rod is adjusted, the second limiting rod does not need to be rotated, and higher adjusting precision can be obtained.
With reference to fig. 1 and 2, the vertical planes of the two supporting and limiting modules on the vertical rod 1 are perpendicular to each other. Continuing with the example of fig. 1, the vertical plane of the support member of the support and spacing module, which is located higher, is parallel to the vertical plane of the drawing and is used to support the longitudinal tendons 8. And the vertical plane of the supporting part of the supporting and limiting module at a lower position is vertical to the vertical plane of the drawing and is used for supporting the transverse prestressed tendons 8.
Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that a person skilled in the art should also recognize that several modifications and decorations can be made without departing from the principle of the present invention, and the protection scope of the present invention is also covered.
Claims (7)
1. A slow-bonding prestressed tendon split heads capable of being adjusted in height is characterized by comprising a vertical frame and at least two supporting and limiting modules movably arranged on the vertical frame; the upright frame comprises an upright rod which is vertically arranged, and a first thread section is arranged on the upright rod; each supporting and limiting module comprises a first height adjusting piece, a supporting piece and a limiting piece;
the first height adjusting piece is in threaded connection with the first threaded section of the vertical rod;
the supporting piece comprises a horizontal supporting part and a vertical first limiting part; one end of the supporting part is fixedly connected with the first height adjusting part, the other end of the supporting part is connected with the lower end of the first limiting part, and a second threaded section is arranged on the first limiting part;
the limiting part comprises a second height adjusting part and a horizontal second limiting part; the second height adjusting piece is in threaded connection with the second threaded section; one end of the second limiting part is fixedly connected with the second height adjusting part, and the second limiting part is arranged above the supporting part at intervals.
2. The slow-bonding prestressed bar split heads capable of adjusting height according to claim 1, wherein one or more groups of supporting and limiting assemblies are uniformly arranged on the side wall of said first height adjusting member of each said supporting and limiting module along the circumferential direction, each group of supporting and limiting assemblies comprises two supporting and limiting units symmetrically arranged along the radial direction of said first height adjusting member, and each said supporting and limiting unit comprises one said supporting member and one said limiting member.
3. The height adjustable slow stick tendon split heads of claim 2 wherein said first height adjustment means comprises a first adjustment nut.
4. The height-adjustable slow-bonded prestressed tendon split heads as claimed in claim 2, wherein said supporting members are L-shaped rods, and the first vertical position-limiting portions of said supporting members are spaced from said vertical rods.
5. The height adjustable slow stick tendon split heads of claim 2 wherein said second height adjustment means includes a second adjustment nut.
6. The slow-bonding prestressed tendon split heads capable of height adjustment according to claim 2, characterized in that said vertical frame further comprises a backing plate, the bottom end of said vertical rod is fixedly connected with said backing plate, said vertical rod is a threaded rod.
7. The horizontally adjustable prestressed bar split heads as claimed in claim 2, wherein the vertical surfaces of the supporting members of at least two supporting and limiting modules on the vertical rods are perpendicular to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222487753.2U CN218562762U (en) | 2022-09-20 | 2022-09-20 | Slow bonding prestressed rib split heads that can carry out altitude mixture control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222487753.2U CN218562762U (en) | 2022-09-20 | 2022-09-20 | Slow bonding prestressed rib split heads that can carry out altitude mixture control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218562762U true CN218562762U (en) | 2023-03-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222487753.2U Active CN218562762U (en) | 2022-09-20 | 2022-09-20 | Slow bonding prestressed rib split heads that can carry out altitude mixture control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218562762U (en) |
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2022
- 2022-09-20 CN CN202222487753.2U patent/CN218562762U/en active Active
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