CN104458407A - Carbon fiber reinforced polymer-pre-stressed concrete prisms (CFRP-PCPs) composite bar test piece - Google Patents
Carbon fiber reinforced polymer-pre-stressed concrete prisms (CFRP-PCPs) composite bar test piece Download PDFInfo
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- CN104458407A CN104458407A CN201410759997.9A CN201410759997A CN104458407A CN 104458407 A CN104458407 A CN 104458407A CN 201410759997 A CN201410759997 A CN 201410759997A CN 104458407 A CN104458407 A CN 104458407A
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Abstract
The invention discloses a carbon fiber reinforced polymer-pre-stressed concrete prisms (CFRP-PCPs) composite bar test piece which comprises a test piece with rectangular cross section, wherein two ends of the test piece are provided with end supports; the test piece is composed of concrete, a reinforcement cage, CFRP-PCPs composite bars and corrugated pipes; the reinforcement cage is formed by binding the CFRP-PCPs composite bars, four vertical bars and a plurality of hooping bars; the four vertical bars are distributed on the inner sides of the vertexes of the hooping bars; the CFRP-PCPs composite bars are fixedly distributed in the middle of the bottom parts of the hooping bars; the vertical bars are twisted steel bars; and a strain gage covered by gauze is stuck on the surface of each CFRP-PCPs composite bar. The composite bar test piece disclosed by the invention has the characteristics of being convenient to manufacture and accurate in test result.
Description
Technical field
The invention belongs to technical field of buildings, refer more particularly to composite reinforcing test specimen.
Background technology
Concrete is one of building materials commonly used in modern construction engineering, at present to the theory of concrete material permanance and the focus of civil engineering work research when testing.In operational phase, due to reasons such as load actions, there will be stressed slot, so most xoncrete structure is in fact all work with cracking.Therefore, in the concrete material experimental study containing CFRP-PCPs composite reinforcing, had great importance by the mechanical property of concrete material under the concrete sample in default crack research cracking state and the service life of permanance to prediction xoncrete structure.CFRP-PCPs (Carbon Fiber Reinforced Polymer-Prestressed Concrete Prisms) composite reinforcing refers to the muscle material that CFRP muscle and high-performance RPC are combined.
Summary of the invention
The present invention is intended to the defect overcoming prior art, provides CFRP-PCPs composite reinforcing test specimen, has and makes simple, test structure feature accurately.
In order to solve the problems of the technologies described above, the invention provides following technical scheme:
CFRP-PCPs composite reinforcing test specimen, comprising cross section is rectangular coupon, test specimen two ends are provided with end bearing, test specimen is made up of concrete, steel reinforcement cage, CFRP-PCPs composite reinforcing, corrugated tube, steel reinforcement cage is CFRP-PCPs composite reinforcing, four vertical muscle and some stirrup colligations form, four vertical muscle are distributed in inside stirrup summit, and CFRP-PCPs composite reinforcing stationary distribution is middle part bottom stirrup.
Vertical muscle is deformed bar.
CFRP-PCPs composite reinforcing surface mount has the foil gauge of parcel gauze.
Compared with prior art, the present invention has following beneficial effect:
This test specimen makes simply, test findings is accurate, cheap, can provide experimental basis for the permanance and military service performance studying cracked concrete.Control the crack width of cracked concrete test specimen according to test demand exactly, realize load, the test of displacement with dual parameter controlled loading.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the test specimen of CFRP-PCPs composite reinforcing of the present invention.
Fig. 2 is longitudinal, the horizontal arrangement of reinforcement schematic diagram of CFRP-PCPs composite reinforcing of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
As shown in Figure 1, 2, CFRP-PCPs composite reinforcing test specimen, comprising cross section is rectangular coupon, test specimen two ends are provided with end bearing, test specimen is made up of concrete 5, steel reinforcement cage, CFRP-PCPs composite reinforcing 4, corrugated tube, steel reinforcement cage is that the vertical muscle 1,3 of CFRP-PCPs composite reinforcing 4, four and some stirrups 2 colligation form, and four vertical muscle are distributed in inside stirrup summit, and vertical muscle is deformed bar.CFRP-PCPs composite reinforcing stationary distribution is middle part bottom stirrup.CFRP-PCPs composite reinforcing surface mount has the foil gauge of parcel gauze.
The foregoing is only explanation embodiments of the present invention; be not limited to the present invention, for a person skilled in the art, within the spirit and principles in the present invention all; any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1.CFRP-PCPs composite reinforcing test specimen, comprising cross section is rectangular coupon, it is characterized in that: test specimen two ends are provided with end bearing, test specimen is made up of concrete, steel reinforcement cage, CFRP-PCPs composite reinforcing, corrugated tube, steel reinforcement cage is CFRP-PCPs composite reinforcing, four vertical muscle and some stirrup colligations form, four vertical muscle are distributed in inside stirrup summit, and CFRP-PCPs composite reinforcing stationary distribution is middle part bottom stirrup.
2. CFRP-PCPs composite reinforcing test specimen according to claim 1, is characterized in that: vertical muscle is deformed bar.
3. CFRP-PCPs composite reinforcing test specimen according to claim 1, is characterized in that: CFRP-PCPs composite reinforcing surface mount has the foil gauge of parcel gauze.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410759997.9A CN104458407A (en) | 2014-12-13 | 2014-12-13 | Carbon fiber reinforced polymer-pre-stressed concrete prisms (CFRP-PCPs) composite bar test piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410759997.9A CN104458407A (en) | 2014-12-13 | 2014-12-13 | Carbon fiber reinforced polymer-pre-stressed concrete prisms (CFRP-PCPs) composite bar test piece |
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| Publication Number | Publication Date |
|---|---|
| CN104458407A true CN104458407A (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410759997.9A Pending CN104458407A (en) | 2014-12-13 | 2014-12-13 | Carbon fiber reinforced polymer-pre-stressed concrete prisms (CFRP-PCPs) composite bar test piece |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140291884A1 (en) * | 2010-12-16 | 2014-10-02 | The Boeing Company | Electrically conductive bushing connection to structure for current path |
| US20140335344A1 (en) * | 2012-01-04 | 2014-11-13 | Rolls-Royce Plc | Metallic foam material |
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2014
- 2014-12-13 CN CN201410759997.9A patent/CN104458407A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140291884A1 (en) * | 2010-12-16 | 2014-10-02 | The Boeing Company | Electrically conductive bushing connection to structure for current path |
| US20140335344A1 (en) * | 2012-01-04 | 2014-11-13 | Rolls-Royce Plc | Metallic foam material |
Non-Patent Citations (6)
| Title |
|---|
| 屈建: "新型CFRP_PCPs复合筋混凝土梁受力性能试验研究与理论分析", 《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》 * |
| 张鹏等: "CFRP-PCPs 复合筋嵌贴加固", 《混凝土》 * |
| 张鹏等: "CFRP-PCPs 复合筋嵌贴加固混凝土梁", 《广西大学学报:自然科学版》 * |
| 张鹏等: "CFRP-PCPS 混凝土板试验及裂缝计算方法研究", 《广西科技大学学报》 * |
| 张鹏等: "低周反复荷载作用下CFRP-PCPs复合筋混凝土梁挠度和延性试验研究", 《混凝土》 * |
| 聂威: "新型CFRP_PCPs复合筋混凝土梁抗震性能的试验研究", 《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》 * |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150325 |