CN205049466U - Device of survey concrete and steel bar anchoring bearing capacity - Google Patents

Device of survey concrete and steel bar anchoring bearing capacity Download PDF

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Publication number
CN205049466U
CN205049466U CN201520822876.4U CN201520822876U CN205049466U CN 205049466 U CN205049466 U CN 205049466U CN 201520822876 U CN201520822876 U CN 201520822876U CN 205049466 U CN205049466 U CN 205049466U
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CN
China
Prior art keywords
concrete
steel plate
reinforcing bar
notch
bearing capacity
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201520822876.4U
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Chinese (zh)
Inventor
袁娇娇
张晓东
火映霞
王志飞
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CITY VOCATIONAL COLLEGE OF JIANGSU
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CITY VOCATIONAL COLLEGE OF JIANGSU
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Filing date
Publication date
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Priority to CN201520822876.4U priority Critical patent/CN205049466U/en
Application granted granted Critical
Publication of CN205049466U publication Critical patent/CN205049466U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a device of survey concrete and steel bar anchoring bearing capacity, including loading frame, concrete sample, T steel brace, reinforcing bar, force transducer, universal testing machine, displacement meter, static signal test analytic system and computer, the upper portion steel sheet surface of loading frame is provided with T type spout, the lower part steel sheet of loading frame is provided with the notch, and T type spout and notch department have marked out the size scale, make the accurate centering of loading device through the position of adjusting reinforcing bar and T steel brace. This device simple structure, it is convenient to dismantle, and collecting layers and instrument are few, not only are applicable to the scientific research, are applicable to job site reinforcing bar and concrete bond property's test moreover.

Description

A kind of device measuring concrete and rebar anchoring bearing capacity
Technical field
The utility model relates to a kind of device measuring concrete and rebar anchoring bearing capacity, belongs to concrete construction field.
Background technology
Adhesive property between reinforcing bar and concrete is reinforcing bar and the concrete bi-material composition cooperative basis of component, also be that reinforced concrete structure carries stressed prerequisite, this effect makes can realize Stress transmit between reinforcing bar and concrete, thus in reinforcing bar and concrete, set up the necessary working stress of structural bearing.The test unit that current shortage is unified, reinforcing bar and the direct pull-out test of concrete, need the problem solving test specimen centering.
Utility model content
The technical problems to be solved in the utility model is for above-mentioned the deficiencies in the prior art, and provides a kind of drawing type to measure the proving installation of reinforcing bar and Bond Performance Between Concrete.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of device measuring concrete and rebar anchoring bearing capacity, and this device comprises loading frame, concrete sample, T steel tie rod, reinforcing bar, force snesor, universal testing machine, displacement meter, stationary singnal detecting and analysing system and computing machine;
Described loading frame is made up of the high-strength bolt screw rod of top steel plate, lower steel plate and connection top steel plate and lower steel plate and high-strength bolt nut; Described top surface of steel plate is provided with T-shaped chute; The T connector of described T steel tie rod is installed in described T-shaped chute, and the end of T steel tie rod is connected with the fixture of universal testing machine one end; Described lower steel plate is provided with notch, the position of this notch and the position consistency of T-shaped chute; Described concrete sample is placed in described lower steel plate surface; One end of described reinforcing bar passes concrete sample and is connected with the fixture of the notch on lower steel plate with the universal testing machine other end, and this end fixture arranges force snesor; The other end of reinforcing bar also stretches out outside concrete, and this end installs displacement meter; Described displacement meter is connected with described stationary singnal detecting and analysing system by signal wire with force snesor, and this stationary singnal detecting and analysing system is connected with described computing machine.
Further, the upper end of described concrete sample and the centre position of bottom are provided with pvc pipe, and reinforcing bar is through described pvc pipe.
Further, described T-shaped chute and notch place are provided with size scale.
The beneficial effects of the utility model: the feature of proving installation of the present utility model is that assembling is simple, easy to operate, and the required instrument of test is less, can measure at the scene of building.The utility model designs T-shaped chute and notch, and at T-shaped chute and the good scale of notch subscript, reinforcing bar and T steel bar is moved to same scale place, just can solve test specimen centering problem.The utility model material requested and instrument few, be not only applicable to scientific research, and be applicable to working-yard research reinforcing bar and concrete between adhesive property.
Accompanying drawing explanation
Fig. 1 is the single unit system figure of the utility model proving installation.
Fig. 2 is the utility model upper steel plate level perspective view.
Fig. 3 is the utility model top steel plate sectional drawing.
Fig. 4 is the utility model T steel tie rod figure.
Fig. 5 is the utility model lower steel plate horizontal projection.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is elaborated.
Be a kind of device measuring concrete and rebar anchoring bearing capacity of the present utility model as Figure 1-5, this device comprises loading frame, concrete sample 5, reinforcing bar 6, T steel tie rod 7, force snesor 8, universal testing machine 9, displacement meter 11, stationary singnal detecting and analysing system 13 and computing machine 14.
Loading frame is by top steel plate 1, lower steel plate 2 and be connected the high-strength bolt screw rod 3 of top steel plate 1 and lower steel plate 2 and high-strength bolt nut 4 forms; Top steel plate 1 surface is provided with T-shaped chute 15; The T connector of T steel tie rod 7 is installed in T-shaped chute 15, and the end of T steel tie rod 7 is connected with the fixture of universal testing machine 9 one end; Lower steel plate 2 is provided with notch 16, the position of this notch 16 and the position consistency of T-shaped chute 15; Concrete sample 5 is placed in lower steel plate 2 surface; One end of reinforcing bar 6 passes concrete sample 5 and is connected with the fixture of the notch 16 on lower steel plate 2 with universal testing machine 9 other end, and this end fixture arranges force snesor 8; The other end of reinforcing bar 6 also stretches out outside concrete, and this end installs displacement meter 11; Displacement meter 11 is connected with stationary singnal detecting and analysing system 13 by signal wire 12 with force snesor 8, and this stationary singnal detecting and analysing system 13 is connected with computing machine 14.
In the present embodiment, the upper end of concrete sample 5 and the centre position of bottom are provided with pvc pipe 10, and reinforcing bar 6 is through pvc pipe 10.By the setting of pvc pipe, the test specimen bond-slip section after building only in the middle part of concrete sample, and ensures that bond-slip shear stress between the concrete and rebar surveyed as far as possible evenly.
In the present embodiment, T-shaped chute 15 and notch 16 place are provided with size scale (not shown in FIG.).The top and the bottom steel plate size specification of the utility model loading frame is consistent, be respectively arranged with T-shaped chute 15 and notch 16, the position consistency of T-shaped chute 15 and notch 16, T-shaped chute 15 and notch 16 place have marked size scale, size scale is consistent, by regulating the position of reinforcing bar 6 and T steel tie rod 7, making reinforcing bar 6 and T-shaped tie rod 7 be in identical graduation place, making the accurate centering of charger.
The assay method of said apparatus is adopted specifically to comprise the steps:
The first step: casting concrete test specimen: hole in the middle part of side form template, penetrates reinforcing bar 6 in die trial, and puts pvc pipe 10, pvc pipe 10 is arranged in two side form template ends;
Second step: assembling loading frame: top steel plate 1 and lower steel plate 2 are coupled together by high-strength bolt screw rod 3 and high-strength bolt nut 4, and tightens;
3rd step: assembling charger: reinforcing bar 6 is penetrated notch 16 place that lower steel plate 2 is reserved in advance, the position of transportable concrete test specimen 5, make it a corresponding scale, T steel tie rod 7 is penetrated top steel plate 1, mobile T steel tie rod 7, make it identical in the corresponding scale value in lower steel plate 2 place with reinforcing bar 6, make concrete sample 5 precisely centering;
4th step: connecting test device: displacement meter 11, force snesor 8 are connected with stationary singnal detecting and analysing system 13, stationary singnal detecting and analysing system 13 connects computing machine 14;
5th step: open stationary singnal detecting and analysing system 13, zeroing, vertical load is applied by universal testing machine 9, stationary singnal detecting and analysing system 13 records load P (t) during relative displacement Δ S (t) and the test specimen destruction of reinforcing bar in loading procedure, can obtain load-displacement curve according to Δ S (t) and P (t).
Reinforcing bar is extracted by universal testing machine 9 at device, force snesor measures the bond bearing capacity between reinforcing bar 6 and concrete sample 5, to be coated with between concrete sample 5 and lower steel plate 2 before test and spread butter, to reduce to rub for the impact of test findings between concrete interface and lower steel plate 2.
More than show and describe ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (3)

1. measure a device for concrete and rebar anchoring bearing capacity, it is characterized in that: this device comprises loading frame, concrete sample, T steel tie rod, reinforcing bar, force snesor, universal testing machine, displacement meter, stationary singnal detecting and analysing system and computing machine;
Described loading frame is made up of the high-strength bolt screw rod of top steel plate, lower steel plate and connection top steel plate and lower steel plate and high-strength bolt nut; Described top surface of steel plate is provided with T-shaped chute; The T connector of described T steel tie rod is installed in described T-shaped chute, and the end of T steel tie rod is connected with the fixture of universal testing machine one end; Described lower steel plate is provided with notch, the position of this notch and the position consistency of T-shaped chute; Described concrete sample is placed in described lower steel plate surface; One end of described reinforcing bar passes concrete sample and is connected with the fixture of the notch on lower steel plate with the universal testing machine other end, and this end fixture arranges force snesor; The other end of reinforcing bar also stretches out outside concrete, and this end installs displacement meter; Described displacement meter is connected with described stationary singnal detecting and analysing system by signal wire with force snesor, and this stationary singnal detecting and analysing system is connected with described computing machine.
2. a kind of device measuring concrete and rebar anchoring bearing capacity according to claim 1, is characterized in that: the upper end of described concrete sample and the centre position of bottom are provided with pvc pipe, and reinforcing bar is through described pvc pipe.
3. a kind of device measuring concrete and rebar anchoring bearing capacity according to claim 1, is characterized in that: described T-shaped chute and notch place are provided with size scale.
CN201520822876.4U 2015-10-21 2015-10-21 Device of survey concrete and steel bar anchoring bearing capacity Expired - Fee Related CN205049466U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520822876.4U CN205049466U (en) 2015-10-21 2015-10-21 Device of survey concrete and steel bar anchoring bearing capacity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520822876.4U CN205049466U (en) 2015-10-21 2015-10-21 Device of survey concrete and steel bar anchoring bearing capacity

Publications (1)

Publication Number Publication Date
CN205049466U true CN205049466U (en) 2016-02-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520822876.4U Expired - Fee Related CN205049466U (en) 2015-10-21 2015-10-21 Device of survey concrete and steel bar anchoring bearing capacity

Country Status (1)

Country Link
CN (1) CN205049466U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105784483A (en) * 2016-03-31 2016-07-20 江苏省地质调查研究院 Pull-out test device and measuring calibration method for measuring bonding strength of micro-diameter material reinforced soil

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105784483A (en) * 2016-03-31 2016-07-20 江苏省地质调查研究院 Pull-out test device and measuring calibration method for measuring bonding strength of micro-diameter material reinforced soil

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160224

Termination date: 20181021

CF01 Termination of patent right due to non-payment of annual fee