CN204531406U - A kind of device of reserved resistance strain gage paste position - Google Patents
A kind of device of reserved resistance strain gage paste position Download PDFInfo
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- CN204531406U CN204531406U CN201520229827.XU CN201520229827U CN204531406U CN 204531406 U CN204531406 U CN 204531406U CN 201520229827 U CN201520229827 U CN 201520229827U CN 204531406 U CN204531406 U CN 204531406U
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Abstract
The utility model discloses a kind of device of paste position of reserved resistance strain gage, comprise plastic sheeting and module group, plastic sheeting is wrapped in module group periphery; Described module group comprises rectangular module, deformed module and reinforcing bar locating module, and rectangular module is all identical with width with the length of deformed module, and rectangular module, deformed module are identical with the length of reinforcing bar locating module; The rectangular module of described more than one piece and deformed module are fixed by groove, projection, and reinforcing bar locating module is placed between two ribs of deformed module, form described module group; Utilize the utility model, solve concrete impact of building foil gauge well, also effectively ensure that the quality of reinforcing bar foil gauge, make the result of testing more reliably with accurate.Although can form a small gap in the bottom of beam after building, can not impact the strain of beam, because in test beam lower tension, pulling force is born primarily of reinforcing bar, and concrete has nothing to do.
Description
Technical field
The utility model belongs to concrete beam behavior of members under loading experimental technique field, is specifically related to a kind of device of reserved resistance strain gage paste position.
Background technology
Reinforced concrete beam is component common and important in modern architecture, along with modern architecture is to moulding and the increasing requirement of function, shape and the cross section of beam become increasingly complex, and the strain research of the concrete therefore in the design after beam stress and steel bar stress just seems particularly important.At present, the experimental technique of common lab to beam pressurized is generally electric resistance strain film method.Resistance strain gage is bonded in closely by special bonding agent and produces on mechanics strain matrix, when the stressed generation STRESS VARIATION of matrix, resistance strain gage also produces deformation together, and the resistance of foil gauge is changed, thus makes to be added in ohmically voltage and change.The change in resistance that resistance strain gage produces when stressed is usually less, and general resistance strain gage all forms strain bridge, is amplified by follow-up instrument amplifier, then is transferred to treatment circuit (normally A/D conversion and CPU) display.
In the test of concrete beam, foil gauge is divided into two kinds, and one is concrete strain sheet, and another kind is reinforcing bar foil gauge.Concrete strain sheet is pasted onto the surface of beam, process very well when pasting, reinforcing bar strain gauge adhesion is on the surface of reinforcing bar, current common method of attaching is for first to paste method, before the concreting of beam, the position of pasting foil gauge is being needed to polish flat, after pasting foil gauge, pick out wire, last concreting.The stickup order of this kind of foil gauge, require high to concrete casting craft, in concrete casting process, concrete requires vibration compacting, and the vibrating head used that vibrates probably damages foil gauge, electric bridge and wire, causes very large impact to experimental result.Meanwhile, after having built, reinforcing bar foil gauge is wrapped in concrete, is unfavorable for the integrality and the reliability that check foil gauge.
Summary of the invention
For above-mentioned deficiency of the prior art, the utility model main purpose is to provide a kind of device of reserved resistance strain gage paste position, utilizes this device, also can meet the reliability of foil gauge data completing reinforcing bar strain gauge adhesion while.
To achieve these goals, the technical solution adopted in the utility model is as follows:
A device for the paste position of reserved resistance strain gage, comprises plastic sheeting and module group, and plastic sheeting is wrapped in module group periphery; Described module group comprises rectangular module, deformed module and reinforcing bar locating module, and rectangular module is all identical with width with the length of deformed module, and rectangular module, deformed module are identical with the length of reinforcing bar locating module; The cross sectional shape of described rectangular module is rectangle, has two projections upwardly at the side mask of rectangular module, rectangular module opposite side and correspond to projection position there are two groove a that cave inward, that match with projection; The both sides of one side of described deformed module have rib upwardly, make the U-shaped structure in the cross section of deformed module, have the groove b matched with the projection on rectangular module in the another side of deformed module; The described height of reinforcing bar locating module and the height of rib match; The rectangular module of described more than one piece and deformed module are fixed by groove, projection, and reinforcing bar locating module is placed between two ribs of deformed module, form described module group.
Further, described rectangular module, deformed module and reinforcing bar locating module all adopt cast iron integrally casting shaping.
Further, described rectangular module is of a size of 120mm × 60mm × 10mm or 120mm × 60 × 5mm.
Further, the device of the paste position of reserved resistance strain gage according to claim 1, is characterized in that, the thickness of described deformed module is 10mm, and the width of rib is 5mm, is highly 5mm.
Further, described reinforcing bar locating module is of a size of 120mm × 5mm × 5mm.
Further, described projection is cylinder, this cylindrical diameter is 10mm, be highly 2mm, described groove a and groove b is cylinder groove, and the diameter of cylinder groove is 10mm, and the degree of depth is 2mm, the distance of projection, groove a and groove b distance respective modules corresponding end is 10mm, and the distance of its distance respective modules both sides is 25mm.
Relative to prior art, the utility model has following beneficial effect:
Utilize the utility model, solve concrete impact of building foil gauge well, also effectively ensure that the quality of reinforcing bar foil gauge, make the result of testing more reliably with accurate.Although can form a small gap in the bottom of beam after building, can not impact the strain of beam, because in test beam lower tension, pulling force is born primarily of reinforcing bar, and concrete has nothing to do.This apparatus structure is simple, is easy to make, and can recycle, economic and practical.
Accompanying drawing explanation
Fig. 1 is module group structural representation;
Fig. 2 is a status architecture schematic diagram of rectangular module;
Fig. 3 is another status architecture schematic diagram of rectangular module;
Fig. 4 is deformed module structural representation;
Fig. 5 is reinforcing bar locating module structural representation.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
See Fig. 1: a kind of device of paste position of reserved resistance strain gage, comprise plastic sheeting and module group, plastic sheeting is wrapped in module group periphery.Module group comprises rectangular module 1, deformed module 2 and reinforcing bar locating module 3, rectangular module 1 is all identical with width with the length of deformed module 2, rectangular module 1, deformed module 2 are identical with the length of reinforcing bar locating module 3, and the rectangular module 1 of more than a piece, deformed module 2 and reinforcing bar locating module 3 are combined to form module group.
See Fig. 2 and Fig. 3: rectangular module 1 adopts cast iron integrally casting shaping, its cross sectional shape is rectangle.The size of rectangular module 1 can set according to actual needs, and in the present embodiment, the size of rectangular module 1 has two kinds, and one is 120mm × 60mm × 10mm, and another kind is 120mm × 60 × 5mm.At the upper side of rectangular module 1, there are two projections 11 upwardly, rectangular module 1 opposite side and correspond to projection 11 position there are two groove a12 that cave inward, that match with projection.Projection 11 is cylinder, and this cylindrical diameter is 10mm, is highly 2mm, and groove a12 is cylinder groove, and the diameter of cylinder groove is 10mm, and the degree of depth is 2mm.The distance of projection 11 and groove a12 distance rectangular module corresponding end is 10mm, and the distance of projection 11 and groove a12 distance rectangular module 1 both sides is 25mm.Be fixed by projection, groove between two pieces of rectangular modules 1.
See Fig. 3, deformed module 2 adopts cast iron integrally casting shaping, and the both sides of its upper side have rib 21 upwardly, makes the U-shaped structure in the cross section of deformed module 2.Have the groove b22 matched with the projection 11 on rectangular module in the downside of deformed module 2, this groove b22 to be fixed with the projection 11 on rectangular module 1 by projection, the groove mode that is fixed and to coordinate.The length of deformed module 2 is identical with rectangular module 1 with width, and the thickness of deformed module 2 is 10mm.The width of rib 21 is 5mm, is highly 5mm.
See Fig. 4, reinforcing bar locating module 3 adopts cast iron to make, and reinforcing bar locating module 3 is rectangular strip structure, and its height highly matches with the rib 22 of deformed module 2.In the present embodiment, reinforcing bar locating module 3 is of a size of 120mm × 5mm × 5mm.
During use, rectangular module 1 and deformed module 2 are fixed by projection, groove, between two ribs 21 reinforcing bar locating module 3 being placed in deformed module 2, namely form module group.Rectangular module 1 and deformed module 2, by different combinations, can meet all concrete covers that thickness is not less than 5mm.Reinforcing bar locating module 3 is fixed on deformed module 2, can meet bar diameter in the positioning requirements of 5mm ~ 30mm and the requirement of concrete cover within the scope of 5mm ~ 45mm simultaneously.Connection between module is inserted in the depression cylinder of module bottom above by the protrusion cylinder of module top, is formed overall.After module has all been assembled, wrap up with plastic sheeting.
In the present embodiment; take topping as 25mm be example; the rectangular module that the rectangular module adopting one piece of 10mm thick, one piece of 5mm are thick and the thick deformed module of one piece of 10mm; mutually be fixed by projection and groove; deformed module is positioned at the superiors; reinforcing bar locating module adopts 7, and wherein 3 reinforcing bar locating modules are fixed near the rib of deformed module side, and other 4 ribs near deformed module opposite side are fixed.
During use, before the reinforcing cage of simply supported beam puts into template, place the utility model device in reinforcing bar foil gauge position, place reinforcing cage, concreting.After the simply supported beam maintenance demoulding, take out the utility model device, polishing reinforcing bar, by reinforcing bar strain gauge adhesion on reinforcing bar.The module group of this device serves as concrete when concreting, and what guarantee was built effectively carries out, and module group also ensures the thickness of topping as cushion block simultaneously, and the size of module group also meets the work plane needed for sander polishing simultaneously.The effect of plastic sheeting is mainly and facilitates module group to take out from concrete beam.
Utilize the utility model, solve concrete impact of building foil gauge well, also effectively ensure that the quality of reinforcing bar foil gauge, make the result of testing more reliably with accurate.Although can form a small gap in the bottom of beam after building, can not impact the strain of beam, because in test beam lower tension, pulling force is born primarily of reinforcing bar, and concrete has nothing to do.This apparatus structure is simple, is easy to make, and can recycle, economic and practical.
Finally it should be noted that, above embodiment is only in order to illustrate the technical solution of the utility model but not restriction technologies scheme, although applicant has been described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, those are modified to the technical solution of the utility model or equivalent replacement, and do not depart from aim and the scope of the technical program, all should be encompassed in the middle of right of the present utility model.
Claims (6)
1. a device for the paste position of reserved resistance strain gage, is characterized in that, comprises plastic sheeting and module group, and plastic sheeting is wrapped in module group periphery; Described module group comprises rectangular module, deformed module and reinforcing bar locating module, and rectangular module is all identical with width with the length of deformed module, and rectangular module, deformed module are identical with the length of reinforcing bar locating module; The cross sectional shape of described rectangular module is rectangle, has two projections upwardly at the side mask of rectangular module, rectangular module opposite side and correspond to projection position there are two groove a that cave inward, that match with projection; The both sides of one side of described deformed module have rib upwardly, make the U-shaped structure in the cross section of deformed module, have the groove b matched with the projection on rectangular module in the another side of deformed module; The described height of reinforcing bar locating module and the height of rib match; The rectangular module of described more than one piece and deformed module are fixed by groove, projection, and reinforcing bar locating module is placed between two ribs of deformed module, form described module group.
2. the device of the paste position of reserved resistance strain gage according to claim 1, is characterized in that, described rectangular module, deformed module and reinforcing bar locating module all adopt cast iron integrally casting shaping.
3. the device of the paste position of reserved resistance strain gage according to claim 1, is characterized in that, described rectangular module is of a size of 120mm × 60mm × 10mm or 120mm × 60 × 5mm.
4. the device of the paste position of reserved resistance strain gage according to claim 1, is characterized in that, the device of the paste position of reserved resistance strain gage according to claim 1, it is characterized in that, the thickness of described deformed module is 10mm, and the width of rib is 5mm, is highly 5mm.
5. the device of the paste position of reserved resistance strain gage according to claim 1, is characterized in that, described reinforcing bar locating module is of a size of 120mm × 5mm × 5mm.
6. the device of the paste position of the reserved resistance strain gage according to any one of claim 3 ~ 5, it is characterized in that, described projection is cylinder, this cylindrical diameter is 10mm, is highly 2mm, and described groove a and groove b is cylinder groove, the diameter of cylinder groove is 10mm, the degree of depth is 2mm, and the distance of projection, groove a and groove b distance respective modules corresponding end is 10mm, and the distance of its distance respective modules both sides is 25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520229827.XU CN204531406U (en) | 2015-04-16 | 2015-04-16 | A kind of device of reserved resistance strain gage paste position |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520229827.XU CN204531406U (en) | 2015-04-16 | 2015-04-16 | A kind of device of reserved resistance strain gage paste position |
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| Publication Number | Publication Date |
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| CN204531406U true CN204531406U (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520229827.XU Expired - Fee Related CN204531406U (en) | 2015-04-16 | 2015-04-16 | A kind of device of reserved resistance strain gage paste position |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606710A (en) * | 2015-12-25 | 2016-05-25 | 上海交通大学 | Portable sensor clamp applied to smart reinforcing steel bars |
-
2015
- 2015-04-16 CN CN201520229827.XU patent/CN204531406U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606710A (en) * | 2015-12-25 | 2016-05-25 | 上海交通大学 | Portable sensor clamp applied to smart reinforcing steel bars |
| CN105606710B (en) * | 2015-12-25 | 2018-12-18 | 上海交通大学 | Portable sensor fixture applied to intelligent reinforcing bar |
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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: 20150805 Termination date: 20160416 |
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| CF01 | Termination of patent right due to non-payment of annual fee |