CN104165838B - A kind of experimental provision impacting drawing and experimental technique - Google Patents
A kind of experimental provision impacting drawing and experimental technique Download PDFInfo
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- CN104165838B CN104165838B CN201410388064.3A CN201410388064A CN104165838B CN 104165838 B CN104165838 B CN 104165838B CN 201410388064 A CN201410388064 A CN 201410388064A CN 104165838 B CN104165838 B CN 104165838B
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Abstract
The invention discloses a kind of experimental provision impacting drawing and experimental technique.The present invention utilizes impact target, steel wire rope and fixed pulley, mass freely falling body acts on the dynamic impulsion pressure on impact target and is converted into the dynamic pulling capacity being applied on reinforcement in concrete, it is achieved thereby that the dynamic impulsion drawing experiment of armored concrete；Secondly, utilize the ingehious design of oil gear, efficiently solve concrete cover splitting problem in drawing process, it is achieved that apply the armored concrete dynamic impulsion drawing experiment under confined pressure.Apparatus of the present invention can realize the experiment of four types, respectively: anchoring bond stress distribution research under dynamic impact loads effect, crack gaps bond stress distribution are studied, and under confined pressure state, the anchorage bond stress of dynamic impulsion is distributed and crack gaps bond stress distribution.
Description
Technical field
The present invention relates to a kind of experimental provision impacting drawing and experimental technique, be specifically related to the solid bond stress of reinforced concrete anchors under a kind of Impulsive load effect and the experimental provision of crack gaps bond stress and experimental technique.
Background technology
The bonding of reinforcing bar and concrete is the interaction of a kind of complexity between reinforcing bar and peripheral concrete, it is the composite component that bi-material the is formed premise that is able to work, typically the shear stress produced on armored concrete stress tailing edge reinforcing bar and concrete surface is defined as bond stress.According to bond stress distribution feature, anchorage bond stress and crack gaps bond stress typically can be classified as.What the paper " Rc Structure Bond performance and the research of durability " that nineteen ninety Xu has the paper " deformed bar concrete binding anchoring property experimental study " of neighbour, calendar year 2001 Zhao Yu to practise was studied is the solid adhesive property of the reinforced concrete anchors under semi-static load effect, and the latter considers the reinforcing bar impact on adhesive property of getting rusty；What the paper " Corrosion Reinforcement and concrete dynamic adhesion performance study " of Zheng Xiao swallow in 2004 was studied is the solid adhesive property of the reinforced concrete anchors under circulation triangular pulse (simulation earthquake load) loading effect；For under impact loading, the experimental data of armored concrete bond stress distribution quite lacks.It is true that the destruction of a lot of reinforced concrete structures is all affected by suddenly impact loading, these structures will be carried out finite element analysis, it is important that the dynamic adhesion stress distribution of armored concrete just seems particularly.
Summary of the invention
It is desirable to provide a kind of experimental provision impacting drawing and experimental technique, in order to Study on Steel reinforced concrete this structure of dynamic adhesion.According to different requirement of experiment, the present invention can do multiple impact drawing experiment, including the impact pull-out test of the biaxial loadings simply impacting drawing experiment, the simple impact drawing experiment of applying confined pressure, the impact drawing experiment of biaxial loadings, applying confined pressure, with the adhesive property of Study on Steel reinforced concrete.
The invention provides a kind of experimental provision impacting drawing, including the load transfer device that drops hammer, impacts, measurement apparatus, test specimen and fixing charger thereof, it is characterised in that drop hammer described in: as impact mass block；Described impact load transfer device includes impact target, guide rail, steel wire rope, fixed pulley, drop hammer applying dynamic load on impact target, impact target runs on upright guide rail, and guide rail is fixed on base, fixed pulley is fixed on pedestal, and steel wire rope is walked around fixed pulley and connected impact target and test piece end；Described measurement apparatus includes force transducer, fibre optic strain sensor, metal strain plate sensor, it is provided with the first force transducer at steel wire rope and test specimen junction, fibre optic strain sensor is embedded in concrete, and metal strain plate sensor is attached on reinforcing bar interior profile and on armored concrete test specimen outer surface；Described test specimen is fixed charger and is included multifunctional box, oil pressure chamber and inner cavity chamber it is provided with in multifunctional box, inner cavity chamber is positioned at the center of oil pressure chamber, multifunctional box is rectangular structure, being provided with rubber finger sleeve inside multifunctional box and fix ring flat-plate, multifunctional box left end centre is provided with hole, and the centrage in hole is consistent with the axis of inner cavity chamber, oil pressure cavity bottom is provided with oil-in, and top is provided with air vent；Armored concrete test specimen is installed by inner cavity chamber, test specimen is cylindrical structure, test specimen center is reinforcing bar, the both ends that reinforcing bar contacts with concrete are provided with PVC sleeve pipe, being provided with rubber finger sleeve outside test specimen, the mid portion of rubber finger sleeve contacts with test specimen, and two ends are enclosed within rubber finger sleeve and fix on ring flat-plate, fixing at rubber finger sleeve and be provided with collar outside ring flat-plate, rubber finger sleeve two ends are fastened by the collar；Multifunctional box end is provided with bonnet, and multifunctional box is fixed on pedestal.
In above-mentioned experimental provision, described impact target is that piston type contacts with guide rail, guide rail is the rectangular structure of boring, guide rail is provided with groove, and steel wire rope runs in groove, ensures that inside and outside guide rail, air-flow is unimpeded simultaneously, steel wire rope is fixed at 1/3rd of distance impact target top, being connected by spherical hinge, it is 0-5cm that impact target runs altitude range, and impact target traffic direction on guide rail is paralleled with the guide rail that drops hammer.
In above-mentioned experimental provision, described multifunctional box is made up of casing and case lid, and casing and case lid are bolted, and casing and case lid junction are provided with a circle rubber ring.
In above-mentioned experimental provision, the reinforcing bar that the left end of described test specimen stretches out is connected with steel wire rope, the first force transducer for measuring impact pulling capacity it is provided with between reinforcing bar and steel wire rope, the reinforcing bar that described test specimen right-hand member stretches out is fixed on the screw rod of bonnet, is provided with the second force transducer for measuring reinforced binding power between reinforcing bar and screw rod.
In above-mentioned experimental provision, described first force transducer and the second force transducer are high-precision force sensor, and described fibre optic strain sensor, metal strain plate sensor, the first force transducer and the second force transducer are all connected with high performance oscillograph by plain conductor.
In above-mentioned experimental provision, described impact mass block, guide rail, impact target, the material of multifunctional box are high strength steel, and the material of described steel wire rope is that the finer wire with high intensity twists into.
The invention provides a kind of experimental technique impacting drawing, it comprises the following steps:
(1) test specimen being fixed on inner cavity chamber, the reinforcing bar that one end is stretched out is connected with steel wire rope, and the armored concrete dynamic adhesion stress distribution type according to intending test arranges force transducer；
(2) impact mass block impacts on impact target with certain altitude freely falling body, steel wire rope becomes dynamic tensile load action to reinforcing bar the dynamic pressure load conversion on impact target, make the reinforcing bar in armored concrete by quick drawing, measure the power of drawing reinforcing bar, concrete strain and reinforcing bar respectively by force transducer, fibre optic strain sensor and metal strain plate sensor to strain, thus obtain this structure of dynamic adhesion of armored concrete；
(3) regulation mass release altitude, repeat the above steps, can study the LOADING RATES impact on armored concrete dynamic adhesion stress distribution.
In above-mentioned experimental technique, during research anchorage bond stress distribution, in described step (1), the reinforcing bar that test specimen one end is stretched out is connected with steel wire rope, is provided with the first force transducer between reinforcing bar and steel wire rope.
In above-mentioned experimental technique, during research crack gaps dynamic adhesion stress distribution, in described step (1), the reinforcing bar that the left end of test specimen stretches out is connected with steel wire rope, the first force transducer it is provided with between reinforcing bar and steel wire rope, the reinforcing bar that test specimen right-hand member stretches out is fixed on the screw rod of bonnet, is provided with the second force transducer between reinforcing bar and screw rod.
In above-mentioned experimental technique, when research applies anchorage bond stress distribution or the bond stress distribution of crack gaps of confined pressure, after described (1st) step, increase the technique applying confined pressure: open the air vent in oil pressure chamber, by the oil-in oil-feed of oil pressure chamber, inner cavity chamber is applied confined pressure and acts on test specimen side.
The present invention'sBeneficial effect:
(1) present invention utilizes impact target, steel wire rope and fixed pulley, mass freely falling body acts on the dynamic impulsion pressure on impact target and is converted into the dynamic pulling capacity being applied on reinforcement in concrete, it is achieved thereby that the dynamic impulsion drawing experiment of armored concrete；
(2) present invention utilizes the ingehious design of oil gear, efficiently solves concrete cover splitting problem in drawing process, it is achieved that apply the armored concrete dynamic impulsion drawing experiment under confined pressure；
(3) apparatus of the present invention can realize the experiment of four types, respectively: anchoring bond stress distribution research under dynamic impact loads effect, crack gaps bond stress distribution are studied, and under confined pressure state, the anchorage bond stress of dynamic impulsion is distributed and crack gaps bond stress distribution.
Accompanying drawing explanation
Fig. 1 is the structural representation (section view) of impact drawing experimental provision.
Fig. 2 is the center section plan of impact target system of the present invention.
Fig. 3 is the sectional view in Fig. 2 along line A-A.
Fig. 4 is the central cross-sectional view of multifunctional box of the present invention.
Fig. 5 is the sectional view (amplification) in Fig. 4 along line B-B.
Fig. 6 is the top view (removing case lid) of multifunctional box casing.
In figure, 1 for dropping hammer, and 2 is impact target, and 3 is guide rail, 4 is fixed pulley, and 5 is steel wire rope, and 6 is hinge, 7 is test specimen, and 8 is the first force transducer, and 9 is the second force transducer, 10 is fibre optic strain sensor, and 11 is metal strain plate sensor, and 12 is multifunctional box, 13 is oil pressure chamber, and 14 is air vent, and 15 is oil-in, 16 is reinforcing bar, and 17 is base, and 18 is pedestal, 19 is case lid, and 20 is casing, and 21 fix ring flat-plate for rubber finger sleeve, 22 is bonnet, and 23 is screw rod, and 24 is rubber ring, 25 is rubber finger sleeve, 26 is the collar, and 27 is PVC sleeve pipe, and 28 is groove.
Detailed description of the invention
Further illustrate the present invention below by embodiment, but be not limited to following example.
Embodiment:
First compare Fig. 1 ~ 6 illustrate experimental provision of the present invention structure:
Fig. 1 is the population structure schematic diagram of impact drawing experimental provision, including the load transfer device that drops hammer, impacts, measurement apparatus, test specimen and fixing charger thereof, it is characterised in that drop hammer 1 described in: for impact mass block；Described impact load transfer device includes impact target 2, guide rail 3, steel wire rope 5, fixed pulley 4, drop hammer 1 applying dynamic load on impact target 2, impact target 2 runs on upright guide rail 3, guide rail 3 is fixed on base 17, fixed pulley 4 is fixed on pedestal 18, and steel wire rope 5 is walked around fixed pulley 4 and connected impact target 2 and test specimen 7 end；Described measurement apparatus includes force transducer, fibre optic strain sensor 10, metal strain plate sensor 11, it is provided with the first force transducer 8 at steel wire rope and test specimen junction, fibre optic strain sensor 10 is embedded in test specimen 7, and metal strain plate sensor 11 is attached on reinforcing bar 16 interior profile and on the outer surface of test specimen 7；Described test specimen 7 is fixed charger and is included multifunctional box 12, oil pressure chamber 13 and inner cavity chamber it is provided with in multifunctional box 12, inner cavity chamber is positioned at the center of oil pressure chamber 13, multifunctional box 12 is rectangular structure, multifunctional box 12 inside is provided with rubber finger sleeve and fixes ring flat-plate 21, and multifunctional box 12 left end centre is provided with hole, and the centrage in hole is consistent with the axis of inner cavity chamber, being provided with oil-in 15 bottom oil pressure chamber 13, top is provided with air vent 14；Armored concrete test specimen 7 is installed by inner cavity chamber, test specimen 7 is cylindrical structure, test specimen 7 center is reinforcing bar 16, the both ends that reinforcing bar 16 contacts with concrete are provided with pvc pipe 27, being provided with rubber finger sleeve 25 outside test specimen 7, the mid portion of rubber finger sleeve 25 contacts with test specimen 7, and two ends are enclosed within rubber finger sleeve and fix on ring flat-plate 21, fixing at rubber finger sleeve and be provided with collar 26 outside ring flat-plate 21, rubber finger sleeve 25 two ends are fastened by the collar 26；Multifunctional box 12 end is provided with bonnet 22, and multifunctional box 12 is fixed on pedestal 18.
Fig. 2,3 show impact load transfer device.Described impact target 2 contacts for piston type with guide rail 3, the size of impact target 2 is 120*184*333mm, guide rail 3 is the rectangular structure of boring, guide rail 3 is provided with groove 28, and steel wire rope 5 runs in groove 28, ensures that inside and outside guide rail 3, air-flow is unimpeded simultaneously, steel wire rope 5 is fixed at distance impact target 2 tip height 1/3rd, being connected by spherical hinge 6, it is 0-5cm that impact target 2 runs altitude range, and impact target 2 traffic direction on guides 3 is paralleled with the guide rail that drops hammer.
Fig. 4 ~ 6 show test specimen and multifunctional box.What the present embodiment was selected is standard specimen, a diameter of 150mm of test specimen, and height is 300mm, and described multifunctional box 12 is made up of casing 20 and case lid 19, and casing 20 and case lid 19 are bolted, and casing 20 and case lid 19 junction are provided with a circle rubber ring 24.
When carrying out the impact drawing experiment of biaxial loadings, sensor is set at test specimen two ends.Be provided with screw rod 23 on the bonnet 22 of described multifunctional box 12 with reinforcing bar 16 corresponding position, screw rod 23 is provided with the second force transducer 9 with reinforcing bar 16 junction of test specimen 7 end.
When carrying out the impact drawing experiment applying the simple impact drawing experiment of confined pressure or biaxial loadings, oil-in 15 oil-feed of described oil pressure chamber, inner cavity chamber is applied confined pressure and acts on test specimen side.
In the present embodiment, described first force transducer 8 and the second force transducer 9 are high-precision force sensor, and described fibre optic strain sensor 10, metal strain plate sensor the 11, first force transducer 8 and the second force transducer 9 are all connected with high performance oscillograph by plain conductor.
Described impact mass block, guide rail, impact target, the material of multifunctional box are high strength steel, and the material of described steel wire rope is that the finer wire with high intensity twists into.
The experimental technique of drawing is impacted below by four groups of different description of test present invention:
Experiment one: simple impact drawing experiment:
Illustrate: simple impact drawing experiment, it is not necessary to apply confined pressure, it is not required that be fixed by the described reinforcing bar other end, so need not in Shi Yan install the second force transducer 9, case lid 19, bonnet 22, rubber ring 24, rubber finger sleeve 25 and the collar 26；
Experimental procedure:
1. opening multifunctional box case lid 19, take off bonnet 22, from casing right-hand member, test specimen 7 is put into multifunctional box inner cavity chamber, the reinforcing bar 16 of test specimen front end is through the circular hole on casing antetheca, and the left side of test specimen 7 abuts against on the inwall of multifunctional box casing；
2. the first force transducer 8 of connecting steel wire ropes 5 is connected on the reinforcing bar 16 of test specimen 7 front end, the first force transducer 8, fibre optic strain sensor 10 and metal strain sensor 11 is connected respectively on the oscillograph of correspondence；
3. will drop hammer and 1 be increased to specified altitude assignment, and open oscillograph and prepare record data；
4. release is dropped hammer, and record data, the drop impact drawing reinforcing bar power recorded including the first force transducer 8, the strain of the armored concrete bond regions near interface that fibre optic strain sensor 10 records, metal strain sensor 11 records strain and the strain of test specimen 7 outer surface of reinforcing bar 16；
5. disconnect the connection of the first force transducer 8 and reinforcing bar 16, test specimen 7 is taken out from multifunctional box 12 right-hand member；
6. clean out multifunctional box inner cavity chamber and concrete particle fragment etc. that oil pressure intracavity drops；
7. repeat above step 1 ~ 6 and can get one group of experimental data simply impacting drawing experiment.
Experiment two: the impact drawing experiment of biaxial loadings:
The experimental technique of experiment two is essentially identical with experiment one, and difference is:
When test specimen being installed in testing a step 1, the distance of vacant 2cm between test specimen 7 left end and casing 20 inwall.Biaxial loadings when, the concrete wall of test specimen can not be attached on casing, it is impossible to stress；Test specimen only receives left and right reinforcing bar pulling capacity, if if one end loads, left end reinforcing bar is by pulling force, and concrete wall is by the support force of box body wall.
, in experiment one step 2, the other end of described reinforcing bar 16 is connected with the screw rod on bonnet 22 meanwhile, between reinforcing bar with screw rod, is connected the second force transducer 9, and the second force transducer 9 is connected on the oscillograph of correspondence；
Other step is identical with experiment one.
Experiment three: the simple impact drawing applying confined pressure is tested:
Experimental procedure:
1, opening multifunctional box case lid 19, take off bonnet 22, from casing right-hand member, test specimen 7 is put into multifunctional box inner cavity chamber, the reinforcing bar 16 of test specimen front end is through the circular hole on casing antetheca, and the left side of test specimen 7 abuts against on the inwall of multifunctional box casing；
2, launching to be fixed on concrete sample 7 by rubber finger sleeve 25, two ends are enclosed within rubber finger sleeve and fix on ring flat-plate 21, and are fixed on rubber finger sleeve ring flat-plate 21 by rubber finger sleeve 25 with collar 26；
3, with bolt, case lid 19 is fixed on casing 20, pads the contact surface at casing and case lid for the rubber ring 24 sealed；
4, the first force transducer 8 of connecting steel wire ropes 5 is connected on the reinforcing bar 16 of test specimen 7 front end, the first force transducer 8, fibre optic strain sensor 10 and metal strain sensor 11 is connected respectively on the oscillograph of correspondence；
5, open air vent 14, oil is filled oil pressure chamber 13 by oil-in 15, cover vent cap, continue to oil pressure chamber 13 oiling, reach to apply confined pressure purpose to test specimen 7, controlled the pressure size of confined pressure by oil pressure servo；
6, will drop hammer and 1 be increased to specified altitude assignment, and open oscillograph and prepare record data；
7, release is dropped hammer, and record data, data include the drop impact drawing reinforcing bar power that the first force transducer 8 records, the strain of the armored concrete bond regions near interface that fibre optic strain sensor 10 records, metal strain sensor 11 records strain and the strain of test specimen 7 outer surface of reinforcing bar 16, the confined pressure pressure data of oil pressure servo record；
8, stop applying oil pressure, mention and drop hammer 1 and fix；
9, air vent 14 is opened, by multifunctional box 12 oil-in 15 below by the oil discharge in oil pressure chamber；
10, disconnect the first force transducer 8 and the connection of reinforcing bar 16, open the upper cover of casing 12, fix from rubber finger sleeve and ring flat-plate 21, take off the collar 26 and rubber finger sleeve 25, test specimen 7 is taken out from multifunctional box 12 right-hand member；
11, multifunctional box inner cavity chamber is cleaned out and concrete particle fragment etc. that oil pressure intracavity drops；
12, repeat above step 1 ~ 11 and can get one group of experimental data applying the simple impact drawing experiment of confined pressure；
Experiment four: the impact pull-out test of the biaxial loadings of applying confined pressure:
The experimental technique of experiment four is essentially identical with experiment three, and difference is:
When test specimen being installed in testing three steps 1, the distance of vacant 2cm between test specimen 7 left end and casing 20 inwall.
, in experiment three steps 4, the other end of described reinforcing bar 16 is connected with the screw rod on bonnet 22 meanwhile, between reinforcing bar with screw rod, is connected the second force transducer 9, and the second force transducer 9 is connected on the oscillograph of correspondence.
Other step is identical with experiment three.
Claims (9)
1. impact an experimental provision for drawing, including the load transfer device that drops hammer, impacts, measurement apparatus, test specimen and fixing charger thereof, it is characterised in that drop hammer described in: as impact mass block；Described impact load transfer device includes impact target, guide rail, steel wire rope, fixed pulley, drop hammer applying dynamic load on impact target, impact target runs on upright guide rail, and guide rail is fixed on base, fixed pulley is fixed on pedestal, and steel wire rope is walked around fixed pulley and connected impact target and test piece end；Described measurement apparatus includes force transducer, fibre optic strain sensor, metal strain plate sensor, it is provided with the first force transducer at steel wire rope and test specimen junction, fibre optic strain sensor is embedded in concrete, and metal strain plate sensor is attached on reinforcing bar interior profile and on armored concrete test specimen outer surface；Described test specimen is fixed charger and is included multifunctional box, oil pressure chamber and inner cavity chamber it is provided with in multifunctional box, inner cavity chamber is positioned at the center of oil pressure chamber, multifunctional box is rectangular structure, being provided with rubber finger sleeve inside multifunctional box and fix ring flat-plate, multifunctional box left end centre is provided with hole, and the centrage in hole is consistent with the axis of inner cavity chamber, oil pressure cavity bottom is provided with oil-in, and top is provided with air vent；Armored concrete test specimen is installed by inner cavity chamber, test specimen is cylindrical structure, test specimen center is reinforcing bar, the both ends that reinforcing bar contacts with concrete are provided with PVC sleeve pipe, being provided with rubber finger sleeve outside test specimen, the mid portion of rubber finger sleeve contacts with test specimen, and two ends are enclosed within rubber finger sleeve and fix on ring flat-plate, fixing at rubber finger sleeve and be provided with collar outside ring flat-plate, rubber finger sleeve two ends are fastened by collar；Multifunctional box end is provided with bonnet, and multifunctional box is fixed on pedestal.
The experimental provision of impact drawing the most according to claim 1, it is characterized in that: described impact target is that piston type contacts with guide rail, guide rail is the rectangular structure of boring, guide rail is provided with groove, and steel wire rope runs in groove, ensures that inside and outside guide rail, air-flow is unimpeded simultaneously, steel wire rope is fixed at 1/3rd of distance impact target top, being connected by spherical hinge, it is 0-5cm that impact target runs altitude range, and impact target traffic direction on guide rail is paralleled with the guide rail that drops hammer.
The experimental provision of impact drawing the most according to claim 1, it is characterised in that: described multifunctional box is made up of casing and case lid, and casing and case lid are bolted, and casing and case lid junction are provided with a circle rubber ring.
The experimental provision of impact drawing the most according to claim 1, it is characterized in that: the reinforcing bar that the left end of described test specimen stretches out is connected with steel wire rope, the first force transducer for measuring impact pulling capacity it is provided with between reinforcing bar and steel wire rope, the reinforcing bar that described test specimen right-hand member stretches out is fixed on the screw rod of bonnet, is provided with the second force transducer for measuring reinforced binding power between reinforcing bar and screw rod；Described first force transducer and the second force transducer are high-precision force sensor, and described fibre optic strain sensor, metal strain plate sensor, the first force transducer and the second force transducer are all connected with high performance oscillograph by plain conductor.
The experimental provision of impact drawing the most according to claim 1, it is characterised in that: described impact mass block, guide rail, impact target, the material of multifunctional box are high strength steel, and described steel wire rope is twisted into by the finer wire with high intensity.
6. impact an experimental technique for drawing, use the experimental provision described in any one of claim 1 ~ 5, it is characterised in that: comprise the following steps:
(1) test specimen being fixed on inner cavity chamber, the reinforcing bar that one end is stretched out is connected with steel wire rope, and the armored concrete dynamic adhesion stress distribution type according to intending test arranges force transducer；
(2) impact mass block impacts on impact target with certain altitude freely falling body, steel wire rope becomes dynamic tensile load action to reinforcing bar the dynamic pressure load conversion on impact target, make the reinforcing bar in armored concrete by quick drawing, measure the power of drawing reinforcing bar, concrete strain and reinforcing bar respectively by force transducer, fibre optic strain sensor and metal strain plate sensor to strain, thus obtain this structure of dynamic adhesion of armored concrete；
(3) regulation mass release altitude, repeat the above steps, can study the LOADING RATES impact on armored concrete dynamic adhesion stress distribution.
The experimental technique of impact drawing the most according to claim 6, it is characterised in that: in described step (1), the reinforcing bar that test specimen one end is stretched out is connected with steel wire rope, is provided with the first force transducer between reinforcing bar and steel wire rope, and research is anchorage bond stress distribution.
The experimental technique of impact drawing the most according to claim 6, it is characterized in that: the reinforcing bar that in described step (1), the left end of test specimen stretches out is connected with steel wire rope, the first force transducer it is provided with between reinforcing bar and steel wire rope, the reinforcing bar that test specimen right-hand member stretches out is fixed on the screw rod of bonnet, being provided with the second force transducer between reinforcing bar and screw rod, research is crack gaps dynamic adhesion stress distribution.
9. according to the experimental technique of the impact drawing described in claim 7 or 8, it is characterized in that: after described (1st) step, increase the technique applying confined pressure: open the air vent in oil pressure chamber, by the oil-in oil-feed of oil pressure chamber, inner cavity chamber being applied confined pressure and acts on test specimen side, research is anchorage bond stress distribution or the bond stress distribution of crack gaps applying confined pressure.
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| CN106092749A (en) * | 2016-06-03 | 2016-11-09 | 东北大学 | A kind of anchor rod drawing and measure on stress pulse assay device and method |
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| CN107238526B (en) * | 2017-06-08 | 2023-03-24 | 安徽理工大学 | Device for reducing deformation of precast cracks caused by concrete shrinkage |
| CN109060538A (en) * | 2018-09-11 | 2018-12-21 | 湘潭大学 | Armored concrete this structure of bond-slip test method and device based on Fibre Optical Sensor |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE347113B (en) * | 1968-08-07 | 1972-07-24 | Nat Res Dev | |
| CN1773241A (en) * | 2004-11-11 | 2006-05-17 | 香港理工大学 | Testing box for measuring anti-pulling force of soil nailing mechanical property |
| CN101173882A (en) * | 2007-10-30 | 2008-05-07 | 山东省建筑科学研究院 | Anchorage detecting method for concrete strength under restriction |
| JP4466431B2 (en) * | 2005-03-29 | 2010-05-26 | 富士通株式会社 | Impact test equipment |
| CN101819134A (en) * | 2010-04-02 | 2010-09-01 | 西安建筑科技大学 | Test method for measuring bond stress between reinforcing steel bars and concrete |
| CN102207449A (en) * | 2011-03-16 | 2011-10-05 | 东南大学 | Test method for bonding stress between fiber reinforced plastic bar and concrete |
| CN102539319A (en) * | 2011-12-27 | 2012-07-04 | 河海大学 | Device and method for directly testing bonding performance of concrete and reinforcing steel bar under action of reciprocating load |
| CN103134750A (en) * | 2013-02-01 | 2013-06-05 | 河海大学 | Steel bar drawing testing device suitable for Hopkinson pressure bar |
-
2014
- 2014-08-08 CN CN201410388064.3A patent/CN104165838B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE347113B (en) * | 1968-08-07 | 1972-07-24 | Nat Res Dev | |
| CN1773241A (en) * | 2004-11-11 | 2006-05-17 | 香港理工大学 | Testing box for measuring anti-pulling force of soil nailing mechanical property |
| JP4466431B2 (en) * | 2005-03-29 | 2010-05-26 | 富士通株式会社 | Impact test equipment |
| CN101173882A (en) * | 2007-10-30 | 2008-05-07 | 山东省建筑科学研究院 | Anchorage detecting method for concrete strength under restriction |
| CN101819134A (en) * | 2010-04-02 | 2010-09-01 | 西安建筑科技大学 | Test method for measuring bond stress between reinforcing steel bars and concrete |
| CN102207449A (en) * | 2011-03-16 | 2011-10-05 | 东南大学 | Test method for bonding stress between fiber reinforced plastic bar and concrete |
| CN102539319A (en) * | 2011-12-27 | 2012-07-04 | 河海大学 | Device and method for directly testing bonding performance of concrete and reinforcing steel bar under action of reciprocating load |
| CN103134750A (en) * | 2013-02-01 | 2013-06-05 | 河海大学 | Steel bar drawing testing device suitable for Hopkinson pressure bar |
Non-Patent Citations (2)
| Title |
|---|
| 柱壳轴向冲击屈曲实验研究及其应力波效应的分析;路国运 等;《太原理工大学学报》;20080131;第39卷(第1期);第13－16、28页 * |
| 钢筋混凝土框架刚塑性抗震设计方法研究;樊长林 等;《世界地震工程》;20090930;第25卷(第3期);第67－73页 * |
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