High-strength steel wire stress corrosion test device

Abstract

The utility model discloses a high-strength steel wire stress corrosion test device which comprises a tensioning base, an anchoring base and a solution box, wherein the relative positions of the tensioning base and the anchoring base are fixed, and the solution box is arranged between the tensioning base and the anchoring base; the solution box is configured to contain a corrosion solution and penetrate through a plurality of high-strength steel wires soaked in the corrosion solution, the anchoring base is connected with one ends of the high-strength steel wires in an anchoring mode, and the other ends of the high-strength steel wires are fixedly connected to the tensioning steel plate. And the tensioning steel plate is screwed on the tensioning base through at least one high-strength bolt along the stretching direction of the high-strength steel wire in an elastic manner. The high-strength steel wire stress corrosion test device disclosed by the utility model can realize anchoring fixation, simple disassembly and assembly and steel wire tension data acquisition, and is simple and ingenious in structure and simple and feasible to operate.

Description

TECHNICAL FIELD

[0001] The utility model belongs to material test technical field, concretely relates to a high strength steel wire stress corrosion test device. BACKGROUND

[0002] High strength steel wire is made of high quality high carbon steel wire rod after spheroidizing treatment, pickling, copper plating or phosphating and cold drawing. The bright steel wire in high strength steel wire is often bundled for use in parallel steel wire cable of post-tensioned prestressed concrete structure with anchor, cable-stayed bridge or arch bridge, and spiral rib steel wire and three-face notched steel wire are mostly used in pre-tensioned prestressed concrete structure of self-anchored.

[0003] Stress corrosion refers to the brittle fracture process of metal material under the combined action of stress and corrosion environment, and its essence is the interaction of electrochemical corrosion and mechanical process. The interaction will far exceed the result of stress and corrosion medium alone, and it is a common and very serious damage form. Therefore, it is of great significance to carry out stress corrosion test research of high strength steel wire. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a high strength steel wire stress corrosion test device.

[0005] In order to achieve the above-mentioned purpose, the utility model is adopted the following technical scheme:

[0006] The utility model provides a high strength steel wire stress corrosion test device, including the fixed setting of relative position invariable tension base and anchoring base and the solution tank of setting between tension base and anchoring base,

[0007] The solution tank is configured to contain corrosion solution and is provided with a plurality of high strength steel wires immersed in the corrosion solution. One end of the high strength steel wire is anchored to the anchoring base, and the other end of the high strength steel wire is fixedly connected to the tension steel plate. The tension steel plate is screw-connected to the tension base along the extension direction of the high strength steel wire through at least one high strength bolt.

[0008] Further, a plurality of anchoring pieces are arranged on the anchoring base. The anchoring piece includes a through-hole pressure sensor, an anchoring steel plate, a pair of half-anchor rings and a pier head arranged in sequence on one end of the high strength steel wire. The pier head is fixed to the end face of one end of the high strength steel wire. The half-anchor rings are sleeved on the high strength steel wire and arranged between the anchoring steel plate and the pier head under extrusion. The side end face of the through-hole pressure sensor away from the pier head is extruded and contacted with the outer side face of the anchoring base.

[0009] Further, the diameter of the pier head is greater than the inner diameter of the half-anchor ring, and the outer diameter of the half-anchor ring is greater than the diameter of the through hole of the anchoring steel plate through which the high strength steel wire is arranged.

[0010] Further, four high-strength bolts are uniformly arranged on the tensioning steel plate.

[0011] Further, a through hole for penetrating the high-strength steel wire is arranged on the tensioning steel plate, and a head is arranged on the other end face of the high-strength steel wire, and a pair of half anchor rings are arranged between the head and the tensioning steel plate.

[0012] Further, the diameter of the head is smaller than the diameter of the through hole on the tensioning steel plate and larger than the inner diameter of the half anchor ring, and the outer diameter of the half anchor ring is larger than the diameter of the through hole on the tensioning steel plate.

[0013] Further, a through hole for penetrating the high-strength steel wire is arranged on the tensioning steel plate, and a head is arranged on the other end face of the high-strength steel wire, and a pair of half anchor rings are arranged between the head and the tensioning steel plate.

[0014] Further, the diameter of the head is smaller than the diameter of the through hole on the tensioning steel plate and larger than the inner diameter of the half anchor ring, and the outer diameter of the half anchor ring is larger than the diameter of the through hole on the tensioning steel plate and smaller than the inner diameter of the internal threaded sleeve.

[0015] Further, the tensioning base and the anchoring base are both L-shaped long strip steel structures.

[0016] Compared with the prior art, the high-strength steel wire stress corrosion test device provided by the utility model has the beneficial effects that:

[0017] The high-strength steel wire stress corrosion test device provided by the utility model comprises a tensioning base, an anchoring base and a solution tank arranged between the tensioning base and the anchoring base, one end of a high-strength steel wire penetrating the solution tank is anchored and fixed on the anchoring base, and the other end of the high-strength steel wire is connected through a tensioning steel plate and a high-strength bolt, and the high-strength bolt can be adjusted and screwed on the tensioning base, the stress tension strength of the steel wire can be adjusted through fine adjustment of the high-strength bolt, a through-hole type pressure sensor, an anchoring steel plate, a pair of half anchor rings and a head are arranged on one side of the anchoring base, the anchoring and fixing function is realized, the device can be easily disassembled and assembled, the tensioning force data of the steel wire can be acquired through the through-hole type pressure sensor, the structure is simple and ingenious, and the device is easy and feasible to operate, and the high-strength steel wire stress corrosion test efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a three-dimensional schematic view of a high-strength steel wire stress corrosion test device according to an embodiment of the utility model.

[0019] Figure 2It is a structural schematic diagram of an anchorage according to the embodiment of the utility model.

[0020] Figure 3 It is a partial schematic diagram of a tensioning base according to the embodiment of the utility model.

[0021] Figure 4 It is a structural schematic diagram of a tensioning steel plate according to the embodiment of the utility model.

[0022] In the drawing:

[0023] 1, tensioning base; 2, anchorage base; 3, solution tank; 4, high-strength steel wire; 5, tensioning steel plate; 6, high-strength bolt; 7, pier head; 8, half anchor ring; 9, pressure sensor; 10, anchorage steel plate; 11, ground anchor hole; 12, internal thread sleeve; 13, bolt hole. DETAILED DESCRIPTION

[0024] The utility model will be further described below in combination with the drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the utility model, and cannot limit the protection scope of the utility model.

[0025] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0026] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0027] As Figure 1As shown, the utility model embodiment provides a kind of high-strength steel wire stress corrosion test device, including the fixed relative position unchanged setting of tensioning base 1 and anchoring base 2, and the solution tank 3 between tensioning base 1 and anchoring base 2.

[0028] Wherein, tensioning base 1 and anchoring base 2 are all L-shaped long strip steel structure, several ground anchor holes 11 are opened on the horizontal bottom plate of L-shaped long strip steel structure, for anchoring fixed on bearing carrier, such as bracket, foundation platform etc.

[0029] In the embodiment, the other end of high-strength steel wire 4 is welded and fixed on tensioning steel plate 5;Or a through hole for passing high-strength steel wire 4 is opened on tensioning steel plate 5, a stub 7 is provided on the other end face of high-strength steel wire 4, a pair of half anchor rings 8 are extruded and arranged between stub 7 and tensioning steel plate 5, and the diameter of stub 7 is greater than the inner diameter of half anchor ring 8, and the outer diameter of half anchor ring 8 is greater than the diameter of through hole on tensioning steel plate 5.

[0030] Specifically, stub 7 generally adopts integrated structure, and hydraulic stub 7 machine is used to perform stub thickening treatment on the end of steel bar and steel wire.

[0031] Solution tank 3 is configured to contain corrosion solution and pass through several high-strength steel wires 4 immersed in corrosion solution, anchoring base 2 is anchored to one end of high-strength steel wire 4, the other end of high-strength steel wire 4 is fixedly connected to tensioning steel plate 5, and tensioning steel plate 5 is screw-connected to tensioning base 1 along the extension direction of high-strength steel wire 4 with loose tension through at least one high-strength bolt 6, as shown in Figure 3 .

[0032] In the embodiment, four high-strength bolts 6 are uniformly arranged on tensioning steel plate 5, which are screw-connected to the matching bolt holes of L-shaped vertical side plate of tensioning base 1.

[0033] In the embodiment, several anchoring pieces are arranged on anchoring base 2, and each anchoring piece is used to fix one end of high-strength steel bar.

[0034] Specifically, as shown in Figure 2 Anchoring piece includes through-hole pressure sensor 9, anchoring steel plate 10, a pair of half anchor rings 8 and stub 7, which are sequentially passed through one end of high-strength steel wire 4.

[0035] Stub 7 is fixedly welded on the end face of one end of high-strength steel wire 4, half anchor ring 8 is pair-wrapped on high-strength steel wire 4 and extruded and arranged between anchoring steel plate 10 and stub 7, and the side end face of through-hole pressure sensor 9 away from stub 7 is extruded and contacted with the outer side of anchoring base 2.

[0036] In order to facilitate the setting and anchoring locking, the diameter of the head 7 is greater than the inner diameter of the half anchor ring 8, and the outer diameter of the half anchor ring 8 is greater than the diameter of the through hole of the anchoring steel plate 10 through which the high-strength steel wire 4 is set.

[0037] As shown in the drawings, in some embodiments, a through hole for setting the high-strength steel wire 4 is formed on the tensioning steel plate 5, and an internally threaded sleeve 12 coaxial with the through hole and having an inner diameter greater than the diameter of the through hole is arranged, a head 7 is arranged on the other end face of the high-strength steel wire 4, the head 7 passes through the through hole and is buckled in the internally threaded sleeve 12 by a pair of half anchor rings 8, and the internally threaded sleeve 12 is screwed with the high-strength bolt 6 passing through the tensioning base 1. Figure 4

[0038] Among them, the tensioning base 1 is provided with a bolt through hole 13 for setting a high-strength bolt 6 with external threads. After the high-strength bolt 6 passes through the bolt through hole 13, it is screwed into the internally threaded sleeve 12, and can be adjusted in tension in the tensioning direction of the high-strength steel wire 4, so as to realize the tensioning adjustment.

[0039] Specifically, the diameter of the head 7 is smaller than the diameter of the through hole on the tensioning steel plate 5 and greater than the inner diameter of the half anchor ring 8, and the outer diameter of the half anchor ring 8 is greater than the diameter of the through hole on the tensioning steel plate 5 and smaller than the inner diameter of the internally threaded sleeve.

[0040] In addition, in some embodiments, one end or both ends of the high-strength steel wire 4 can be pre-welded with the head 7, and the steel wire and the head 7 can be integrally pressure cast by a head 7 machine and other connection methods. If the head 7 is connected and fixed before the steel wire is set, the diameter of the head 7 needs to be slightly smaller than the diameter of the through hole on the anchoring steel plate 10 and / or the tensioning steel plate 5, so as to facilitate the setting of the steel wire.

[0041] The above only describes the preferred embodiments of the present application, and it should be pointed out that for ordinary skilled persons in the technical field, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications should be regarded as the protection scope of the present application.​

Claims

1. A high-strength steel wire stress corrosion test device characterized by comprising: The tensioning base and the anchoring base are fixed in relative position, and a solution tank is arranged between the tensioning base and the anchoring base. The solution tank is configured to contain a corrosion solution and is provided with a plurality of high-strength steel wires immersed in the corrosion solution, one end of the high-strength steel wire is anchored to the anchoring base, and the other end of the high-strength steel wire is fixedly connected to a tensioning steel plate, the tensioning steel plate is screw-connected to the tensioning base along the extension direction of the high-strength steel wire through at least one high-strength bolt. The anchoring base is provided with a plurality of anchoring members, the anchoring member comprises, in sequence, a through-hole pressure sensor, an anchoring steel plate, a pair of half-anchor rings and a head, the head is fixed to the end face of one end of the high-strength steel wire, the half-anchor rings are arranged in pairs on the high-strength steel wire and are squeezed between the anchoring steel plate and the head, and the side end face of the through-hole pressure sensor away from the head is in contact with the outer side face of the anchoring base. The tensioning steel plate is provided with a through hole for passing the high-strength steel wire and an internally-threaded sleeve coaxial with the through hole and having an inner diameter larger than the diameter of the through hole, the other end of the high-strength steel wire is provided with a head, the head passes through the through hole and is buckled by a pair of half-anchor rings in the internally-threaded sleeve, and the internally-threaded sleeve is screw-connected with the high-strength bolt passing through the tensioning base.

2. The high-strength steel wire stress corrosion test apparatus according to claim 1, characterized by The diameter of the head is larger than the inner diameter of the half-anchor ring, and the outer diameter of the half-anchor ring is larger than the diameter of the through hole for passing the high-strength steel wire on the anchoring steel plate.

3. The high-strength steel wire stress corrosion test apparatus according to any one of claims 1 to 2, characterized by The tensioning steel plate is uniformly provided with four high-strength bolts.

4. The high-strength steel wire stress corrosion test apparatus according to claim 3, characterized by The tensioning steel plate is provided with a through hole for passing the high-strength steel wire, the other end of the high-strength steel wire is provided with a head, and a pair of half-anchor rings are arranged between the head and the tensioning steel plate.

5. The high-strength steel wire stress corrosion test apparatus according to claim 4, characterized by The diameter of the head is smaller than the diameter of the through hole on the tensioning steel plate and larger than the inner diameter of the half-anchor ring, and the outer diameter of the half-anchor ring is larger than the diameter of the through hole on the tensioning steel plate.

6. The high-strength steel wire stress corrosion test apparatus according to claim 5, characterized by The diameter of the head is smaller than the diameter of the through hole on the tensioning steel plate and larger than the inner diameter of the half-anchor ring, and the outer diameter of the half-anchor ring is larger than the diameter of the through hole on the tensioning steel plate and smaller than the inner diameter of the internally-threaded sleeve.

7. The high-strength steel wire stress corrosion test apparatus according to claim 1, characterized by The tensioning base and the anchoring base are both L-shaped long strip steel structures.

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