CN216449333U - Tower column slant self-balancing test device - Google Patents
Tower column slant self-balancing test device Download PDFInfo
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- CN216449333U CN216449333U CN202123144531.2U CN202123144531U CN216449333U CN 216449333 U CN216449333 U CN 216449333U CN 202123144531 U CN202123144531 U CN 202123144531U CN 216449333 U CN216449333 U CN 216449333U
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Abstract
The utility model discloses a tower column slant self-balancing test device, which comprises: the test section of the tower column is of a hollow structure, and a first cable tower anchor block and a second cable tower anchor block which are symmetrically arranged are integrally cast on two side walls of an inner cavity of the test section of the tower column; the top surface of the tower column test section is provided with a tower column jacking, the bottom surface of the tower column test section is provided with a tower column bottom support, and the tower column jacking and the tower column bottom support are connected into a whole through a connecting assembly; a first jack and a second jack are respectively arranged on the first cable tower anchor block and the second cable tower anchor block; the jacking block is arranged between the front ends of the piston rods of the two jacks and the jacking of the tower column to conduct force. The utility model can realize a relatively real simulation stress test on the concrete mechanical property of the tower column anchoring area, and the segment test device is self-balanced, thereby solving the problem of over-high requirements on site foundations and the like.
Description
The technical field is as follows:
the utility model relates to the technical field of building construction, in particular to a tower column oblique self-balancing test device and a test method thereof.
Background art:
the cable tower cable anchoring area is a key part in a cable-stayed bridge and is generally designed into a hollow thin-wall structure, and the local concentrated force of the cable is uniformly transmitted to a tower column through the part. Due to the local strong concentrated force of the inhaul cable, the stress state of the area is very complicated due to the influence of factors such as the anchoring force of the prestressed tendons, the weakening of the holes and the like. Therefore, the discussion of the stress performance analysis of the cable-stayed bridge cable tower anchoring area segment has been attracted by the attention of the bridge boundary, and the cable tower anchoring area is also the difficult point and the key of the design and construction of the cable-stayed bridge. In order to resist the action of strong concentrated force under a stay cable anchor on a cable tower and ensure that a stay cable anchoring area has enough crack resistance and ultimate bearing capacity, a segmental full-scale model test is very necessary for the cable tower anchoring area.
The utility model content is as follows:
in order to overcome the defects of the prior art, the utility model aims to provide a tower column oblique self-balancing test device and a test method thereof, which can realize a relatively real simulated stress test on the concrete mechanical property of a tower column anchoring area, and the segment test device is self-balancing, so that the problem of high requirements on site foundations and the like is solved.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
a tower slant self-balancing test device includes:
the test section of the tower column is of a hollow structure, and a first cable tower anchor block and a second cable tower anchor block which are symmetrically arranged are integrally cast on two side walls of an inner cavity of the test section of the tower column;
the top surface of the tower column test section is provided with a tower column jacking, the bottom surface of the tower column test section is provided with a tower column bottom support, and the tower column jacking and the tower column bottom support are connected into a whole through a connecting assembly;
a first jack and a second jack are respectively arranged on the first cable tower anchor block and the second cable tower anchor block;
the jacking block is arranged between the front ends of the piston rods of the two jacks and the jacking of the tower column to conduct force.
Preferably, the tower column top support is a plurality of double-faced channel steels arranged side by side, and each double-faced channel steel stretcher is arranged at the upper opening of the tower column test section; the tower column bottom supports are also provided with a plurality of double-sided channel steels which are arranged side by side and are laid at the lower openings of the tower column test sections; the connecting assembly comprises an upper connecting piece fixed on the top surface of the tower column top support and a lower connecting piece fixed on the bottom surface of the tower column bottom support, and the upper connecting piece and the lower connecting piece are connected into a whole through a plurality of thread steels.
Preferably, the longitudinal section of the top block is of an inverted triangular structure, the top surface of the top block is a plane and is in surface contact with the bottom surface of the tower column jacking, the downward surface of the top block is two inclined surfaces, and the vertical line of the first inclined surface is parallel to the axes of the first jack and the first cable tower anchor block; the vertical line of the second inclined plane is parallel to the axes of the second jack and the second cable tower anchor block.
Preferably, a first steel pipe jacking is integrally arranged on a piston rod of the first jack, and the top surface of the first steel pipe jacking is in surface contact with the first inclined surface; and a piston rod of the second jack is integrally provided with a second steel pipe top support, and the top surface of the second steel pipe top support is in surface contact with the second inclined surface.
A method for performing a tower column oblique self-balancing test by adopting the device comprises the following steps:
s1, leveling a field, preparing a plurality of double channel steels to be arranged in a row, designing the number and the positions of finish rolling deformed steel bar pull rods according to the test loading force, and welding a lower connecting piece, the pull rods and the double channel steels into a whole to form a tower column bottom support;
s2, hoisting the tower column test section and stably placing the tower column test section on a tower column bottom support;
s3, lowering jacks, temporarily fixing the two jacks on two cable tower anchor blocks respectively, and installing and fixing a steel pipe top support at the front end of a piston rod of each jack;
s4, erecting a plurality of double-channel steel at the upper opening of the tower column test section, welding an upper connecting piece to form a tower column jacking, and fixedly welding a jacking block and the tower column jacking
S5, adjusting the jack to ensure that the loading jack is coaxially arranged with the steel pipe top support and the cable tower anchor block;
s6, fixing each finish-rolled deformed steel bar and a tower column jacking in sequence through spot welding, and then testing a jack to ensure that the finish-rolled deformed steel bar pull rod forms an effective opposite-pulling structure, and testing the self-balancing capacity of the device;
and S7, starting formal loading according to the test scheme.
Compared with the prior art, the utility model has the beneficial effects that:
1. the utility model adopts a pair of inclined jacks, can truly simulate the condition that the stay cable force acts on the cable tower anchor block, and overcomes the inaccuracy caused by the traditional horizontal jack test. Meanwhile, the two jacks can respectively simulate the conditions of different cable forces on the two sides of the cable tower, so that the test stress state of the whole tower column is closer to the actual engineering, and the application range is wider.
2. The utility model adopts the finish rolling deformed steel bar pull rod, and the anchor pulling plate positioned at the end part of the finish rolling deformed steel bar pull rod and the double-channel steel are welded and fixed to form a counter-pulling structure, so that the jacking force of the jack is balanced and converted into the internal force of a test system, the requirements on a foundation, a counter-force seat and the like are avoided, and the test difficulty is greatly reduced.
Description of the drawings:
FIG. 1 is a schematic view of the present invention; fig. 2 is a rendering effect diagram.
Reference numbers in the figures: the test section of 1 tower column, 21 first cable tower anchor blocks, 22 second cable tower anchor blocks, 3 tower column jacking, 31 upper connecting piece, 4 tower column bottom supports, 41 lower connecting pieces, 51 first jack, 52 second jack, 6 jacking blocks, 71 first steel pipe jacking and 72 second steel pipe jacking.
The present invention will be further described with reference to the following detailed description and accompanying drawings.
The specific implementation mode is as follows:
in order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to the drawings, the tower column oblique self-balancing test device of the embodiment comprises:
the test section 1 of the tower column is of a hollow structure according to the conventional design in the field, and a first cable tower anchor block 21 and a second cable tower anchor block 22 which are symmetrically arranged are integrally cast on two side walls of an inner cavity of the test section 1 of the tower column.
The top surface of the tower column test section is provided with a tower column jacking 3, the bottom surface of the tower column test section is provided with a tower column bottom support 4, and the tower column jacking 3 and the tower column bottom support 4 are connected into a whole through a connecting component;
a first jack 51 and a second jack 52 are respectively arranged on the first cable tower anchor block and the second cable tower anchor block 22;
the lifting jack further comprises a jacking block 6, wherein the jacking block 6 is arranged between the front ends of the piston rods of the two lifting jacks and the tower column jacking 3 to conduct force.
Specifically, the tower column top support 3 is a plurality of double-faced channel steels arranged side by side, and each double-faced channel steel stretcher is arranged at the upper opening of a tower column test section; the tower column bottom support 4 is also provided with a plurality of double-sided channel steels which are arranged side by side and laid at the lower opening of the tower column test section; the connecting assembly comprises an upper connecting piece 31 fixed on the top surface of the tower column top support 3 and a lower connecting piece 41 fixed on the bottom surface of the tower column bottom support 4, and the upper connecting piece 31 and the lower connecting piece 41 are connected into an integral structure through a plurality of screw-thread steels.
The longitudinal section of the jacking block 6 is of an inverted triangular structure, the top surface of the jacking block is a plane and is in surface contact with the bottom surface of the tower column jacking 3, the downward surface of the jacking block 6 is two inclined surfaces, and the vertical line of the first inclined surface is parallel to the axes of the first jack 51 and the first cable tower anchor block 21; the vertical line of the second inclined plane is parallel to the axes of the second jack 52 and the second cable tower anchor block 22.
In order to increase the contact area between the piston rod of the jack and the jack block, a first steel pipe jacking support 71 is integrally arranged on the piston rod of the first jack 51, and the top surface of the first steel pipe jacking support 71 is in surface contact with the first inclined surface; a second steel pipe top support 72 is integrally arranged on a piston rod of the second jack 52, and the top surface of the second steel pipe top support 72 is in surface contact with the second inclined surface.
The utility model discloses a method for performing a tower column oblique self-balancing test by adopting the device, which comprises the following steps:
s1, leveling a field, preparing a plurality of double channel steels to be arranged in a row, designing the number and the positions of finish rolling deformed steel bar pull rods according to the test loading force, and welding a lower connecting piece, the pull rods and the double channel steels into a whole to form a tower column bottom support;
s2, hoisting the tower column test section and stably placing the tower column test section on a tower column bottom support;
s3, lowering jacks, temporarily fixing the two jacks on two cable tower anchor blocks respectively, and installing and fixing a steel pipe top support at the front end of a piston rod of each jack;
s4, erecting a plurality of double-channel steel at the upper opening of the tower column test section, welding an upper connecting piece to form a tower column jacking, and fixedly welding a jacking block and the tower column jacking
S5, adjusting the jack to ensure that the loading jack is coaxially arranged with the steel pipe top support and the cable tower anchor block;
s6, fixing each finish-rolled deformed steel bar and a tower column jacking in sequence through spot welding, and then testing a jack to ensure that the finish-rolled deformed steel bar pull rod forms an effective opposite-pulling structure, and testing the self-balancing capacity of the device;
and S7, starting formal loading according to the test scheme.
And obtaining the technical parameters of the tower column test section such as the crack resistance strength and the like according to different loading forces.
It should be noted that the detailed description of the utility model is not included in the prior art, or can be directly obtained from the market, and the detailed connection mode can be widely applied in the field or daily life without creative efforts, and the detailed description is not repeated here.
Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (4)
1. A tower slant self-balancing test device includes:
experimental festival (1) of column, experimental festival (1) of column is hollow structure and pours symmetrical arrangement's first cable tower anchor block (21) and second cable tower anchor block (22) at its inner chamber both sides wall integral type, its characterized in that:
the top surface of the tower column test section is provided with a tower column jacking (3), the bottom surface of the tower column test section is provided with a tower column bottom support (4), and the tower column jacking (3) and the tower column bottom support (4) are connected into a whole through a connecting assembly;
a first jack (51) and a second jack (52) are respectively arranged on the first cable tower anchor block and the second cable tower anchor block (22);
the lifting device is characterized by further comprising a jacking block (6), wherein the jacking block (6) is arranged between the front ends of the piston rods of the two jacks and the tower column jacking (3) to conduct force.
2. The tower column oblique self-balancing test device of claim 1, wherein the tower column jacking (3) is a plurality of double-faced channel steels arranged side by side, and each double-faced channel steel crossarm is arranged at the upper opening of a tower column test section; the tower column bottom supports (4) are also a plurality of double-sided channel steels arranged side by side and are laid at the lower openings of the tower column test sections; the connecting assembly comprises an upper connecting piece (31) fixed on the top surface of the tower column top support (3) and a lower connecting piece (41) fixed on the bottom surface of the tower column bottom support (4), and the upper connecting piece (31) and the lower connecting piece (41) are connected into a whole through a plurality of threaded steel.
3. The tower column oblique self-balancing test device of claim 1, wherein the longitudinal section of the top block (6) is of an inverted triangle structure, the top surface of the top block is a plane and is in surface contact with the bottom surface of the tower column jacking (3), the downward surface of the top block (6) is two inclined surfaces, and the perpendicular line of the first inclined surface is parallel to the axes of the first jack (51) and the first cable tower anchor block (21); the vertical line of the second inclined plane is parallel to the axes of the second jack (52) and the second cable tower anchor block (22).
4. The tower column oblique self-balancing test device of claim 3, wherein a first steel pipe top support (71) is integrally arranged on a piston rod of the first jack (51), and the top surface of the first steel pipe top support (71) is in surface contact with the first inclined surface; and a piston rod of the second jack (52) is integrally provided with a second steel pipe top support (72), and the top surface of the second steel pipe top support (72) is in surface contact with the second inclined surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123144531.2U CN216449333U (en) | 2021-12-15 | 2021-12-15 | Tower column slant self-balancing test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123144531.2U CN216449333U (en) | 2021-12-15 | 2021-12-15 | Tower column slant self-balancing test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216449333U true CN216449333U (en) | 2022-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123144531.2U Active CN216449333U (en) | 2021-12-15 | 2021-12-15 | Tower column slant self-balancing test device |
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| Country | Link |
|---|---|
| CN (1) | CN216449333U (en) |
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2021
- 2021-12-15 CN CN202123144531.2U patent/CN216449333U/en active Active
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