CN111024496A - Force transmission device for anti-pulling test and detection method thereof - Google Patents
Force transmission device for anti-pulling test and detection method thereof Download PDFInfo
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- CN111024496A CN111024496A CN201911187214.3A CN201911187214A CN111024496A CN 111024496 A CN111024496 A CN 111024496A CN 201911187214 A CN201911187214 A CN 201911187214A CN 111024496 A CN111024496 A CN 111024496A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
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Abstract
The invention relates to a force transmission device for an anti-pulling test and a detection method thereof, wherein the force transmission device is arranged on the ground and positioned on a base below an anchoring piece; the guide mechanism is arranged in the base; the inhaul cable is wound on the guide mechanism, a first end of the inhaul cable protrudes upwards to extend out of the base in a vertical protruding mode and is vertically connected with the bottom end of the anchoring piece, and a second end of the inhaul cable protrudes upwards to extend out of the base in a vertical protruding mode; the limiting piece is arranged at the top of the base and corresponds to the second end of the inhaul cable; the vertical reinforcing bar of connecting in the locating part, the bottom of reinforcing bar and the second end vertical connection of cable, the top of reinforcing bar forms the sense terminal. The anti-pulling force of the anchoring piece can be known by detecting the anti-pulling force of the reinforcing steel bar through the detection end.
Description
Technical Field
The invention relates to the field of building construction, in particular to a force transmission device for an anti-pulling test and a detection method thereof.
Background
In the concrete post-anchoring engineering, in order to ensure the construction quality of the concrete post-anchoring part and the safe use of related buildings, the on-site sampling detection of the uplift bearing capacity of the concrete post-anchoring part is required.
However, the detection equipment is erected on the ground, and only the anti-pulling bearing capacity of the rear anchoring piece close to the ground can be detected, so that the pulling bearing capacity of the concrete rear anchoring piece at a high position is difficult to detect, and the field sampling is not uniform.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a force transmission device for an anti-pulling test and a detection method thereof, and solves the problem that in the prior art, a detection device is erected on the ground and is difficult to detect the pulling bearing capacity of a high-position concrete rear anchoring piece.
The technical scheme for realizing the purpose is as follows:
the invention provides a force transmission device for a pull-out resistance test, which comprises:
the base is arranged on the ground and positioned below the anchoring piece;
the guide mechanism is arranged in the base;
the inhaul cable is wound on the guide mechanism, a first end of the inhaul cable vertically and upwardly protrudes out of the base and is vertically connected with the bottom end of the anchoring piece, and a second end of the inhaul cable vertically and upwardly protrudes out of the base;
the limiting piece is arranged at the top of the base and corresponds to the second end of the inhaul cable; and
the vertical connection in the reinforcing bar of locating part, the bottom of reinforcing bar with the second end vertical connection of cable, the top of reinforcing bar forms the sense terminal.
The force transmission device for the pull-out resistance test is further improved in that the guide mechanism comprises:
the first fixed pulley is rotatably arranged in the base and positioned below the anchoring piece; and
the second fixed pulley is rotatably arranged in the base and positioned below the limiting part, and the centers of the second fixed pulley and the first fixed pulley are positioned on the same horizontal line.
In a further improvement of the force transmission device for the pull-out test according to the present invention, the position limiting member includes:
the base plate is arranged at the top of the base and corresponds to the second end of the inhaul cable;
the jack is arranged on the base plate; and
the anchor is arranged at the top of the jack, and the reinforcing steel bar is arranged on one side of the jack and is vertically connected to the anchor.
In a further improvement of the force transfer device for the pull-out test of the present invention, the base comprises:
the bottom plate is arranged on the ground, and a fixed end which is arranged around the guide mechanism is formed on the periphery of the bottom plate;
the cover plate covers the bottom plate, the cover plate is covered on the guide mechanism, and the cover plate is provided with a through hole for the first end and the second end of the inhaul cable to penetrate through; and
and the fixed end and the cover plate edge are connected through a plurality of anchor bolts.
The force transmission device for the anti-pulling test is further improved in that the first end of the inhaul cable is connected with a first clamp, and the first end of the inhaul cable is vertically connected with the bottom end of the anchoring piece through the first clamp;
the second end of cable is connected with the second anchor clamps, the second end of cable passes through the second anchor clamps with reinforcing bar bottom vertical connection.
The invention also provides a detection method of the force transmission device for the anti-pulling test, which comprises the following steps:
providing a base, and arranging the base on the ground and below the anchoring piece;
providing a guide mechanism, and arranging the guide mechanism in the base;
providing a guy cable, winding the guy cable on the guide mechanism, vertically and upwardly extending a first end of the guy cable out of the base and vertically connecting the first end of the guy cable with the bottom end of the anchoring piece, and vertically and upwardly extending a second end of the guy cable out of the base;
providing a limiting piece, and arranging the limiting piece at the top of the base and corresponding to the second end of the inhaul cable; and
and providing a steel bar, vertically connecting the steel bar to the limiting part, vertically connecting the bottom end of the steel bar with the second end of the inhaul cable, and forming a detection end at the top end of the steel bar.
The detection method of the force transmission device for the pull-out resistance test is further improved in that the guide mechanism comprises the following steps:
providing a first fixed pulley, and rotatably arranging the first fixed pulley in the base and below the anchoring piece; and
and providing a second fixed pulley, wherein the second fixed pulley is rotatably arranged in the base and positioned below the limiting part, and the centers of the second fixed pulley and the first fixed pulley are positioned on the same horizontal line.
The detection method of the force transmission device for the pull-out resistance test is further improved in that the provision of the limiting member comprises:
providing a base plate, and arranging the base plate at the top of the base and corresponding to the second end of the inhaul cable;
providing a jack, and arranging the jack on the base plate; and
providing an anchorage device, arranging the anchorage device on the top of the jack, and arranging the reinforcing steel bars on one side of the jack and vertically connecting the reinforcing steel bars to the anchorage device.
The invention is further improved in the method for detecting a force transmission device for a pull-out resistance test, in that the base comprises:
providing a bottom plate, wherein a fixed end surrounding the guide mechanism is formed on the periphery of the bottom plate, and the bottom plate is arranged on the ground;
providing a cover plate, covering the cover plate on the bottom plate and covering the guide mechanism, wherein the cover plate is provided with a through hole for the first end and the second end of the inhaul cable to penetrate through; and
providing a plurality of anchor bolts, connecting the anchor bolts to the fixed end and the cover plate edge.
The detection method of the force transmission device for the pull-out resistance test of the invention is further improved in that,
will the first end of cable is vertical to be stretched out upwards the base and with the bottom vertical connection of anchor assembly includes:
providing a first clamp, and vertically connecting the first end of the inhaul cable with the bottom end of the anchoring piece by adopting the first clamp;
will the bottom of reinforcing bar is vertical protruding to be stretched out the bottom surface of locating part and with the vertical connection of second end of cable includes:
and providing a second clamp, and vertically connecting the second end of the inhaul cable with the bottom end of the steel bar by adopting the second clamp.
The force transmission device for the anti-pulling test and the detection method thereof have the beneficial effects that:
according to the invention, the anti-pulling force of the anchoring part positioned at the high position is equivalently transmitted to the steel bar on the ground through the force transmission device, the anti-pulling force of the anchoring part can be known by detecting the anti-pulling force of the steel bar on the ground, and the anti-pulling bearing capacity of the anchoring part at the high position can be tested on the ground, so that the detection device does not need to be arranged at the high position, and the detection is convenient.
Drawings
Fig. 1 is a sectional view of a force transmission device for a pull-out test according to the present invention.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Referring to fig. 1, a cross-sectional view of a force transmission device for a pull-out test of the present invention is shown. As shown in fig. 1, the force transmission device for the pull-out test of the present invention comprises:
a base 20 arranged on the ground and positioned below the anchoring member 11;
a guide mechanism 30 provided in the base 20;
the inhaul cable 40 is wound on the guide mechanism 30, a first end of the inhaul cable 40 vertically protrudes upwards out of the base 20 and is vertically connected with the bottom end of the anchoring piece 11, and a second end of the inhaul cable 40 vertically protrudes upwards out of the base 20;
a limiting member 60 disposed at the top of the base 20, wherein the limiting member 60 corresponds to the second end of the cable 40; and
the reinforcing steel bar 61 is vertically connected to the limiting member 60, the bottom end of the reinforcing steel bar 61 is vertically connected with the second end of the inhaul cable 40, and the top end of the reinforcing steel bar 61 forms a detection end.
As a preferred embodiment of the force transmission device for the pullout test of the present invention, the guide mechanism 30 includes:
a first fixed pulley 31 rotatably disposed in the base 20 and located below the anchoring member 11; and
the second fixed pulley 32 is rotatably disposed in the base 20 and located below the limiting member 60, and centers of the second fixed pulley 32 and the first fixed pulley 31 are located on the same horizontal line.
Further, the anchor 11 is anchored to the aerial substrate and 10 is vertically downward. The device is used for equivalently transmitting the pulling resistance of the anchoring part 11 which is anchored on the high-altitude base material and is vertically downward 10 to the detection device arranged on the ground for detection.
Further, a first rotating shaft is horizontally disposed in the base 20, and opposite ends of the first rotating shaft are fixed to opposite sides of the base 20. The first fixed pulley 31 is rotatably sleeved on the first rotating shaft. A second rotating shaft parallel to the first rotating shaft is horizontally arranged in the base 20, and two opposite ends of the second rotating shaft are fixed on two opposite sides of the base 20. The second fixed pulley 32 is rotatably sleeved on the second rotating shaft. The cable 40 is wound on the first fixed pulley 31 and the second fixed pulley 32, and the friction resistance of the cable 40 is reduced to be negligible by the rotation of the first fixed pulley 31 and the second fixed pulley 32, so that the equivalent conduction of the pulling resistance of the first anchoring part can be ensured.
As a preferred embodiment of the force transmission device for the pullout test of the present invention, the base 20 includes:
a bottom plate 21 arranged on the ground, wherein a fixed end arranged around the guide mechanism 30 is formed on the periphery of the bottom plate 21;
the cover plate 22 covers the bottom plate 21, the cover plate 22 covers the guide mechanism 30, and the cover plate 22 is provided with a through hole for the first end and the second end of the inhaul cable 40 to penetrate through; and
a plurality of anchors 23 connecting the fixed end and the edge of the cover plate 22.
In the present embodiment, the bottom plate 21 and the cover plate 22 enclose to form a box structure, and the first fixed pulley 31 and the second fixed pulley 32 are disposed in the box structure. The middle portion of the cover plate 22 protrudes downward. The edge of the cover plate 22 is correspondingly attached to the fixed end of the periphery of the bottom plate 21, and the detachable connection is realized through the anchor bolt 23. Before the detection, the anchor bolt 23 is detached, the cover 22 is opened, the first fixed pulley 31 and the second fixed pulley 32 are conveniently installed, and the cable 40 is wound on the first fixed pulley 31 and the second fixed pulley 32. After installation, the cover plate 22 is placed on the base plate 21 and fixed by the anchor bolts 23.
As a preferred embodiment of the force transmission device for the pull-out test according to the present invention, the position limiting member 60 includes:
a pad 62 disposed on the top of the base 20, the pad 62 corresponding to the second end of the cable 40;
a jack 63 provided on the backing plate 62; and
and the anchorage device 64 is arranged at the top of the jack 63, and the reinforcing steel bar 61 is arranged on one side of the jack 63 and is vertically connected to the anchorage device 64.
As a preferred embodiment of the force transmission device for the pull-out test of the present invention, the first end of the pulling cable 40 is connected to the first clamp 50, and the first end of the pulling cable 40 is vertically connected to the bottom end of the anchoring member 11 through the first clamp 50;
the second end of the cable 40 is connected with a second clamp 70, and the second end of the cable 40 is vertically connected with the bottom end of the steel bar 61 through the second clamp 70.
Further, the backing plate 62 is a steel plate with a certain thickness, and plays a role in limiting and reinforcing the support. The jack 63 realizes height adjustment through the jacking rod, so that the position height of the anchorage device 64 arranged at the top of the jack 63 is adjusted, and the height position of the steel bar 61 is adjusted to adapt to the detection device for the uplift resistance test. The reinforcing bars 61 are inserted into the anchors 64, and the reinforcing bars 61 are vertically arranged by the anchors 64. In this embodiment, the detection device for the anti-pulling test adopts a device common in the prior art, and can directly perform reading, so that the detection is convenient and is not described herein again.
In the present embodiment, the anchor 11 is a steel bar. The adhesion of reinforcing steel bars to concrete is a complex interaction between reinforcing steel bars and peripheral concrete, and is a prerequisite for the operation of a composite member composed of two materials.
The anti-pulling force equivalent of the anchor assembly 11 that will be located the eminence through this device conducts to the reinforcing bar 61 on ground, through the anti-pulling force that detects reinforcing bar 61, can learn anchor assembly 11's anti-pulling force, realizes can testing the anti-pulling bearing capacity of anchor assembly behind the eminence on ground to need not to try to install detection device to the eminence, convenient the detection.
The invention also provides a detection method of the force transmission device for the anti-pulling test, which comprises the following steps:
providing a base 20, and arranging the base 20 on the ground and below the anchoring piece 11;
providing a guide mechanism 30, and arranging the guide mechanism 30 in the base 20;
providing a stay cable 40, winding the stay cable 40 on the guide mechanism 30, vertically and upwardly protruding a first end of the stay cable 40 out of the base 20 and vertically connecting the first end with the bottom end of the anchoring part 11, and vertically and upwardly protruding a second end of the stay cable 40 out of the base 20;
providing a limiting member 60, wherein the limiting member 60 is arranged at the top of the base 20 and corresponds to the second end of the cable 40; and
providing a steel bar 61, vertically connecting the steel bar 61 to the limiting member 60, vertically connecting the bottom end of the steel bar 61 with the second end of the inhaul cable 40, and forming a detection end at the top end of the steel bar 61.
As a preferred embodiment of the method for testing a force transmission device for a pull-out test according to the present invention, the guiding mechanism 30 includes:
providing a first fixed pulley 31, wherein the first fixed pulley 31 is rotatably arranged in the base 20 and is positioned below the anchoring piece 11; and
providing a second fixed pulley 32, rotatably arranging the second fixed pulley 32 in the base 20 and below the limiting member 60, wherein the centers of the second fixed pulley 32 and the first fixed pulley 31 are located on the same horizontal line.
As a preferred embodiment of the method for detecting a force transmission device for a pull-out test according to the present invention, providing the position limiting member 60 includes:
providing a backing plate 62, wherein the backing plate 62 is arranged on the top of the base 20 and corresponds to the second end of the pull cable 40;
providing a jack 63, and arranging the jack 63 on the backing plate 62; and
an anchorage device 64 is provided, the anchorage device 64 is arranged on the top of the jack 63, and the reinforcing steel bars 61 are arranged on one side of the jack 63 and vertically connected to the anchorage device 64.
As a preferred embodiment of the method for testing a force transmission device for a pull-out test according to the present invention, providing the base 20 includes:
providing a bottom plate 21, wherein a fixed end arranged around the guide wheel 30 is formed on the periphery of the bottom plate 21, and the bottom plate 21 is arranged on the ground;
providing a cover plate 22, covering the cover plate 22 on the bottom plate 21 and covering the guide wheel 30, wherein the cover plate 22 is provided with a through hole for the first end and the second end of the inhaul cable 40 to penetrate through; and
a plurality of anchor bolts 23 are provided and a plurality of anchor bolts 23 connect the fixed end to the edge of the cover plate 22.
As a preferred embodiment of the method for detecting a force transmission device for an anti-pull test according to the present invention, the method for vertically connecting a first end of a cable, which protrudes upward from a base, to a bottom end of an anchor member includes:
providing a first clamp 50, and vertically connecting a first end of the inhaul cable 40 and the bottom end of the anchoring part 11 by using the first clamp 50;
with the bottom of reinforcing bar 61 vertical protruding the bottom surface of locating part 60 and with the vertical connection of the second end of cable 40, include:
a second clamp 70 is provided, and the second end of the cable 40 and the bottom end of the reinforcing bar 61 are vertically connected using the second clamp 70.
The force transmission device for the anti-pulling test and the detection method thereof have the beneficial effects that:
according to the invention, the anti-pulling force of the anchoring part positioned at the high position is equivalently transmitted to the steel bar on the ground through the force transmission device, the anti-pulling force of the anchoring part can be known by detecting the anti-pulling force of the steel bar, the anti-pulling bearing capacity of the anchoring part at the high position can be tested on the ground, so that the detection device is not required to be arranged at the high position, and the detection is convenient.
While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.
Claims (10)
1. A force transmission device for a pull-out test, comprising:
the base is arranged on the ground and positioned below the anchoring piece;
the guide mechanism is arranged in the base;
the inhaul cable is wound on the guide mechanism, a first end of the inhaul cable vertically and upwardly protrudes out of the base and is vertically connected with the bottom end of the anchoring piece, and a second end of the inhaul cable vertically and upwardly protrudes out of the base;
the limiting piece is arranged at the top of the base and corresponds to the second end of the inhaul cable; and
the vertical connection in the reinforcing bar of locating part, the bottom of reinforcing bar with the second end vertical connection of cable, the top of reinforcing bar forms the sense terminal.
2. The force transmission device for the pullout test of claim 1, wherein the guide mechanism includes:
the first fixed pulley is rotatably arranged in the base and positioned below the anchoring piece; and
the second fixed pulley is rotatably arranged in the base and positioned below the limiting part, and the centers of the second fixed pulley and the first fixed pulley are positioned on the same horizontal line.
3. The force transmission device for the pullout test of claim 1, wherein the stopper includes:
the base plate is arranged at the top of the base and corresponds to the second end of the inhaul cable;
the jack is arranged on the base plate; and
the anchor is arranged at the top of the jack, and the reinforcing steel bar is arranged on one side of the jack and is vertically connected to the anchor.
4. The force transmission device for the pullout test of claim 1, wherein the base includes:
the bottom plate is arranged on the ground, and a fixed end which is arranged around the guide mechanism is formed on the periphery of the bottom plate;
the cover plate covers the bottom plate, the cover plate is covered on the guide mechanism, and the cover plate is provided with a through hole for the first end and the second end of the inhaul cable to penetrate through; and
and the fixed end and the cover plate edge are connected through a plurality of anchor bolts.
5. The force transmission device for pullout resistance test according to claim 1,
the first end of the inhaul cable is connected with a first clamp and is vertically connected with the bottom end of the anchoring part through the first clamp;
the second end of cable is connected with the second anchor clamps, the second end of cable passes through the second anchor clamps with reinforcing bar bottom vertical connection.
6. A detection method of a force transmission device for a pull-out resistance test is characterized by comprising the following steps:
providing a base, and arranging the base on the ground and below the anchoring piece;
providing a guide mechanism, and arranging the guide mechanism in the base;
providing a guy cable, winding the guy cable on the guide mechanism, vertically and upwardly extending a first end of the guy cable out of the base and vertically connecting the first end of the guy cable with the bottom end of the anchoring piece, and vertically and upwardly extending a second end of the guy cable out of the base;
providing a limiting piece, and arranging the limiting piece at the top of the base and corresponding to the second end of the inhaul cable; and
and providing a steel bar, vertically connecting the steel bar to the limiting part, vertically connecting the bottom end of the steel bar with the second end of the inhaul cable, and forming a detection end at the top end of the steel bar.
7. The method of testing a force transmission device for pull-out testing of claim 6, wherein providing a guide mechanism comprises:
providing a first fixed pulley, and rotatably arranging the first fixed pulley in the base and below the anchoring piece; and
and providing a second fixed pulley, wherein the second fixed pulley is rotatably arranged in the base and positioned below the limiting part, and the centers of the second fixed pulley and the first fixed pulley are positioned on the same horizontal line.
8. The method of testing a force transmission device for use in a pull-out test of claim 6, wherein providing a stop comprises:
providing a base plate, and arranging the base plate at the top of the base and corresponding to the second end of the inhaul cable;
providing a jack, and arranging the jack on the base plate; and
providing an anchorage device, arranging the anchorage device on the top of the jack, and arranging the reinforcing steel bars on one side of the jack and vertically connecting the reinforcing steel bars to the anchorage device.
9. The method of testing a force transmission device for pull-out testing of claim 6, wherein providing a base comprises:
providing a bottom plate, wherein a fixed end surrounding the guide mechanism is formed on the periphery of the bottom plate, and the bottom plate is arranged on the ground;
providing a cover plate, covering the cover plate on the bottom plate and covering the guide mechanism, wherein the cover plate is provided with a through hole for the first end and the second end of the inhaul cable to penetrate through; and
providing a plurality of anchor bolts, connecting the anchor bolts to the fixed end and the cover plate edge.
10. The method for testing a force-transmitting device for pull-out test according to claim 6,
will the first end of cable is vertical to be stretched out upwards the base and with the bottom vertical connection of anchor assembly includes:
providing a first clamp, and vertically connecting the first end of the inhaul cable with the bottom end of the anchoring piece by adopting the first clamp;
will the bottom of reinforcing bar is vertical protruding to be stretched out the bottom surface of locating part and with the vertical connection of second end of cable includes:
and providing a second clamp, and vertically connecting the second end of the inhaul cable with the bottom end of the steel bar by adopting the second clamp.
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| CN201911187214.3A CN111024496A (en) | 2019-11-28 | 2019-11-28 | Force transmission device for anti-pulling test and detection method thereof |
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| CN201911187214.3A CN111024496A (en) | 2019-11-28 | 2019-11-28 | Force transmission device for anti-pulling test and detection method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112540013A (en) * | 2020-11-24 | 2021-03-23 | 西华大学 | Impact test device for rod-shaped anchoring assembly |
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