CN211086053U - Test system is drawn to back anchor chemistry crab-bolt - Google Patents
Test system is drawn to back anchor chemistry crab-bolt Download PDFInfo
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- CN211086053U CN211086053U CN201921769997.1U CN201921769997U CN211086053U CN 211086053 U CN211086053 U CN 211086053U CN 201921769997 U CN201921769997 U CN 201921769997U CN 211086053 U CN211086053 U CN 211086053U
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Abstract
A post-anchoring chemical anchor bolt drawing test system is used for effectively increasing the stability of drawing load, accurately controlling the whole loading process in millimeter level, acquiring a force-displacement curve in the whole loading process in real time and reasonably and accurately drawing a group anchor. The device comprises a reaction frame, an actuator, a switching steel member, a concrete anchoring block and a displacement loading and data acquisition device, wherein the reaction frame is of a portal frame structure consisting of an upright post and a cross beam, the actuator is fixedly suspended on the cross beam, the front end of the actuator is connected with the switching steel member through a high-strength anchor bolt, distributed chemical anchor bolts are anchored on the concrete anchoring block and are fixedly connected with the switching steel member, and the concrete anchoring block is anchored on a reaction terrace through distributed anchor bolts; the displacement loading and data acquisition device controls the actuator to start a displacement loading program for the chemical anchor bolt, and records the whole loading process and the whole process real-time force-displacement curve in real time.
Description
Technical Field
The utility model relates to a draw load test technical field particularly, relate to a test system is drawn to back anchor chemistry crab-bolt.
Background
The drawing test is a traditional anchor bolt drawing force test method, namely, a drawing force is applied to an anchor bolt through a tension meter (a hydraulic jack) until the design requirement is met or the anchor bolt is loosened. When the drawing test is carried out, the hydraulic jack is placed between the supporting plate and the nut, the nut is screwed up, certain prestress is applied, then the manual hydraulic pump is used for pressurizing, and corresponding readings on the hydraulic meter and the displacement meter are recorded simultaneously. When the pressure or displacement reading reaches a preset value or when the pressure gauge reading is reduced and the displacement gauge reading is increased, the pressurization is stopped, and after the test, the displacement load curve of the anchor bolt can be sorted out, so that the stress condition of the anchor bolt can be analyzed. The jack is exerted the drawing force and is based on manual control, the loading process is easily disturbed, the drawing load stability in the test process is poor, the accuracy of the test result can be influenced, millimeter-scale accurate control and real-time collection of the force-displacement curve in the whole loading process can not be carried out on the whole loading process, and the group anchor can not be accurately drawn. Therefore, a post-anchoring chemical anchor bolt drawing test system convenient for engineering structure test is needed at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a test system is drawn to back anchor chemistry crab-bolt is provided to effective increase draws load stability, carries out millimeter level accurate control to whole loading process, gathers the power-displacement curve in the whole loading process in real time, rationally and accurately draws the experiment to the crowd anchor.
The utility model provides a technical scheme that its technical problem adopted as follows:
the utility model discloses a test system is drawn to back anchor chemistry crab-bolt, characterized by: the device comprises a reaction frame, an actuator, a switching steel member, a concrete anchoring block and a displacement loading and data acquisition device, wherein the reaction frame is of a portal frame structure consisting of an upright post and a cross beam, the actuator is fixedly suspended on the cross beam, the front end of the actuator is connected with the switching steel member through a high-strength anchor bolt, distributed chemical anchor bolts are anchored on the concrete anchoring block and are fixedly connected with the switching steel member, and the concrete anchoring block is anchored on a reaction terrace through distributed anchor bolts; the displacement loading and data acquisition device controls the actuator to start a displacement loading program for the chemical anchor bolt, and records the whole loading process and the whole process real-time force-displacement curve in real time.
The roof of switching steel member is vertical, horizontal interval sets up four through-holes that are used for installing the crab-bolt that excels in, and horizontal interval sets up the channel that is used for connecting the chemistry crab-bolt on its bottom plate.
The utility model has the advantages that the reaction frame and the reaction terrace form a rigid body, which can provide effective support for the suspension of the actuator, the chute arranged on the bottom plate of the switching steel component can reasonably adjust the position and the relative distance of each chemical anchor bolt according to the experimental requirement, and can meet the requirement of the group anchor drawing test; after the displacement loading program is started, the data acquisition system records the whole loading process and the whole process real-time force-displacement curve in real time, and the problems that the accuracy of a test result is influenced due to poor stability of a drawing load in a test and millimeter-scale accurate displacement control cannot be performed on the whole loading process are effectively solved.
Drawings
The specification includes the following five figures:
FIG. 1 is an elevation view of a post-anchoring chemical anchor bolt pull-out test system of the present invention;
FIG. 2 is an elevation view of a steel member in the post-anchoring chemical anchor bolt pull-out test system of the present invention;
FIG. 3 is a top view of a steel member in the post-anchoring chemical anchor bolt pull test system of the present invention;
FIG. 4 is an elevation view of a concrete anchor block in a post-anchor chemical anchor bolt pull-out test system of the present invention;
fig. 5 is a top view of a concrete anchor block in the post-anchor chemical anchor bolt pull-out test system of the present invention.
The figures show the components and corresponding references: the device comprises upright columns 11, cross beams 12, an actuator 13, a displacement loading and data acquisition device 14, a transfer steel member 20, a top plate 21, a bottom plate 22, a channel 23, a concrete anchoring block 30, an anchor rod 31, a chemical anchor bolt 32 and a high-strength anchor bolt 33.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Referring to fig. 1, the utility model discloses a test system is drawn to back anchor chemical crab-bolt includes reaction frame, actuator 13, switching steel member 20, concrete anchor piece 30 and displacement loading and data acquisition device 14, reaction frame is the portal frame structure who comprises stand 11 and crossbeam 12, actuator 13 hangs to be fixed on crossbeam 12, actuator 13 front end is connected with switching steel member 20 through high-strength anchor 33, the chemical crab-bolt 32 that distributes and sets up anchors on concrete anchor piece 30, and with switching steel member 20 fixed connection, concrete anchor piece 30 anchors on the reaction terrace through the stock 31 that distributes and sets up; the displacement loading and data acquisition device 14 controls the actuator 13 to start a displacement loading program for the chemical anchor bolt 32, and records the whole loading process and the whole process real-time force-displacement curve in real time.
Referring to fig. 2 and 3, the adaptor steel member 20 has four through holes longitudinally and transversely spaced at intervals for receiving high-strength anchors 33, and has channels 23 transversely spaced at intervals for connecting chemical anchors 32 on a bottom plate 22. Reaction frame, reaction plateau form a rigid body, can provide effective support for actuator 13's hanging, the spout 23 that switching steel member 20 bottom plate 22 set up can make the position and the relative distance of each chemical crab-bolt 32 rationally adjust according to the experimental demand, and can satisfy the crowd's anchor and draw experimental needs, effectively solved drawing load stability in the experiment relatively poor and influence the accuracy of test result, can't carry out the accurate displacement control's of millimeter level problem to whole loading process.
The displacement loading and data acquisition device 14 can generally adopt a commercial MTS 469D control system, and has the advantages of high displacement precision and easy control.
Referring to fig. 4 and 5, through holes for installing anchor rods 31 are provided at longitudinally and transversely spaced intervals in the concrete anchor block 30.
The foregoing is illustrative of the principles of the present invention and is not intended to limit the invention to the specific constructions and applications shown and described, and all modifications and equivalents thereof that may be resorted to are intended to fall within the scope of the invention.
Claims (3)
1. The utility model provides a test system is drawn to back anchor chemistry crab-bolt which characterized by: the anti-force transfer steel anchor block comprises a reaction frame, an actuator (13), a transfer steel member (20), a concrete anchor block (30) and a displacement loading and data acquisition device (14), wherein the reaction frame is of a portal frame structure consisting of a stand column (11) and a cross beam (12), the actuator (13) is fixedly suspended on the cross beam (12), the front end of the actuator (13) is connected with the transfer steel member (20) through a high-strength anchor bolt (33), distributed chemical anchor bolts (32) are anchored on the concrete anchor block (30) and are fixedly connected with the transfer steel member (20), and the concrete anchor block (30) is anchored on a reaction terrace through distributed anchor rods (31); the displacement loading and data acquisition device (14) controls the actuator (13) to start a displacement loading program for the chemical anchor bolt (32), and records the whole loading process and the whole process real-time force-displacement curve in real time.
2. The post-anchoring chemical anchor pull-out testing system according to claim 1, wherein: the top plate (21) of the adapting steel member (20) is longitudinally provided with four through holes for mounting high-strength anchor bolts (33) at intervals in the transverse direction, and the bottom plate (22) is provided with channels (23) at intervals in the transverse direction for connecting chemical anchor bolts (32).
3. The post-anchoring chemical anchor pull-out testing system according to claim 1, wherein: through holes for installing anchor rods (31) are arranged on the concrete anchor blocks (30) at intervals in the longitudinal direction and the transverse direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921769997.1U CN211086053U (en) | 2019-10-21 | 2019-10-21 | Test system is drawn to back anchor chemistry crab-bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921769997.1U CN211086053U (en) | 2019-10-21 | 2019-10-21 | Test system is drawn to back anchor chemistry crab-bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211086053U true CN211086053U (en) | 2020-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921769997.1U Active CN211086053U (en) | 2019-10-21 | 2019-10-21 | Test system is drawn to back anchor chemistry crab-bolt |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113624480A (en) * | 2021-08-27 | 2021-11-09 | 四川交达预应力工程检测科技有限公司 | Synchronous group anchor test system |
-
2019
- 2019-10-21 CN CN201921769997.1U patent/CN211086053U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113624480A (en) * | 2021-08-27 | 2021-11-09 | 四川交达预应力工程检测科技有限公司 | Synchronous group anchor test system |
| CN113624480B (en) * | 2021-08-27 | 2024-01-02 | 四川交达预应力工程检测科技有限公司 | Synchronous group anchor test system |
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