CN108627397A - Structural performance inspection method for large prefabricated reinforced concrete column member - Google Patents
Structural performance inspection method for large prefabricated reinforced concrete column member Download PDFInfo
- Publication number
- CN108627397A CN108627397A CN201810446874.8A CN201810446874A CN108627397A CN 108627397 A CN108627397 A CN 108627397A CN 201810446874 A CN201810446874 A CN 201810446874A CN 108627397 A CN108627397 A CN 108627397A
- Authority
- CN
- China
- Prior art keywords
- section
- local
- local members
- short
- long
- 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.)
- Pending
Links
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 6
- 238000000034 method Methods 0.000 title abstract description 10
- 238000007689 inspection Methods 0.000 title abstract description 5
- 238000012360 testing method Methods 0.000 claims abstract description 15
- 230000006835 compression Effects 0.000 claims abstract description 6
- 238000007906 compression Methods 0.000 claims abstract description 6
- 238000012669 compression test Methods 0.000 claims abstract description 6
- 230000007547 defect Effects 0.000 claims abstract description 5
- 238000001514 detection method Methods 0.000 claims description 10
- 238000002474 experimental method Methods 0.000 claims description 10
- 239000000835 fiber Substances 0.000 claims description 7
- 238000011009 performance qualification Methods 0.000 claims description 3
- 229920000049 Carbon (fiber) Polymers 0.000 claims 1
- 239000004917 carbon fiber Substances 0.000 claims 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract 2
- 239000004567 concrete Substances 0.000 description 12
- 238000010586 diagram Methods 0.000 description 9
- 230000002787 reinforcement Effects 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0023—Bending
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The invention relates to a structural performance inspection method of a large prefabricated reinforced concrete column member, which comprises the following steps: 1) cutting two sections with different lengths along the cross section of the large prefabricated reinforced concrete column component, and respectively recording the two sections as a long section and a short section; 2) respectively cutting the long sections and the short sections along the length direction along a cross-shaped cutting surface to obtain four long-section local components and four short-section local components; 3) carrying out an axis compression test on the local member of the short section, and testing the compression bearing capacity of the local member, thereby obtaining the axis compression performance of the local member; carrying out bending test on the long-section local member, and testing the bearing capacity, the deflection and the crack width of the long-section local member so as to obtain the bending performance of the local member; if the performance of the local component meets the qualified index, the local component is proved to have no defects, and the conclusion that the performance of the large-scale prefabricated reinforced concrete column component is qualified is obtained.
Description
Technical field
The present invention relates to a kind of structure and property detection methods of large scale prefabricated reinforced column component.
Background technology
Currently, China advocates energetically uses prefabrication, the existing correlation standard in China：Beam slab class freely-supported
Structure and property detection should be carried out when being marched into the arena by curved prefabricated components.
For large-sized concrete precast column unit due to stress complexity, sectional dimension is excessive, currently, without corresponding structural
It can the method for inspection.The research of large scale prefabricated reinforced column element structure service check method is China's prefabricated components detection
A significant problem.The bulk testing of large scale prefabricated reinforced column component is difficult to realize, and sectional dimension is excessive, holds
Li Taigao is carried, experimental provision and equipment are difficult to meet the requirements, and column component is eccentric compression member, and pressure, curved bearing capacity are mutual
It influences, can not determine bearing capacity criterion of acceptability.
Invention content
In view of the above-mentioned problems, the object of the present invention is to provide a kind of structural behaviours of large scale prefabricated reinforced column component
The method of inspection, this method can solve the problems, such as that the experiment of large-sized concrete precast column unit overall performance is difficult to realize.
To achieve the above object, the present invention uses following technical scheme：A kind of large scale prefabricated reinforced column component
Structure and property detection method, includes the following steps：1) by large scale prefabricated reinforced column component along cross-sectional cut at length
Not equal two sections, it is denoted as long section and short section respectively；2) by long section and short section respectively along length direction along cross cut surface into
Row cutting, obtains the Local Members of four long section of Local Members and four short sections；3) successively to the Local Members of whole short sections
Axial compression tests are carried out, its compression bearing are tested, to obtain the axial compressive property of Local Members；To all long sections
Local Members carry out, by curved experiment, testing its bearing capacity, amount of deflection and fracture width successively, to obtain Local Members by
Curved performance；After testing if the performance of Local Members meets qualified index, proving Local Members, there is no defects to get going out
The conclusion of large scale prefabricated reinforced column component performance qualification.
It is carried out before by curved experiment to the Local Members of long section, the Local Members of long section is reinforced using carbon-fibre strips,
Carbon-fibre strips are spaced apart along the length direction of the Local Members of long section.
The Local Members of the Local Members and short section of obtained long section, cut off excess portion when necessary in the step 2)
Point, to ensure that section is square, and the ratio between the length of the Local Members of short section and the section length of side are not less than 3.
The invention adopts the above technical scheme, which has the following advantages：The method of inspection proposed by the invention can be with
The difficult point of precast reinforced concrete structure overall performance experiment is solved, and tests process and is easily achieved.
Description of the drawings
Fig. 1 is the schematic front view of large-sized concrete precast column unit；
Fig. 2 is the schematic side view of large-sized concrete precast column unit；Wherein, figure (a) indicates that cross sectional shape is square
Large-sized concrete precast column unit；Figure (b) indicates that cross sectional shape is the large-sized concrete precast column unit of rectangle；
Fig. 3 is large-sized concrete precast column unit C-C section arrangement of reinforcement；
Fig. 4 is large-sized concrete precast column unit A-A section arrangement of reinforcement；Wherein, figure (a) indicates that cross sectional shape is square
The large-sized concrete precast column unit of shape；Figure (b) indicates that cross sectional shape is the large-sized concrete precast column unit of rectangle；
Fig. 5 is the schematic diagram that large-sized concrete precast column unit is cut into long section and short section；
Fig. 6 is the schematic diagram that short section is cut into four Local Members；Wherein, figure (a) indicates arrangement cutting line in short section
Schematic front view；Scheme (b) to indicate using the schematic side view for arranging cutting line in short section when square section；Figure (c) expression is adopted
With the schematic side view for arranging cutting line in short section when rectangular section；
Fig. 7 is the structural schematic diagram of the Local Members of short section；Wherein, figure (a) indicates the front view of Local Members；Scheme (b)
Indicate the side view using Local Members when square section；Scheme the side view of Local Members when (c) indicates to use rectangular section
Figure；
Fig. 8 is the schematic cross-sectional view of the Local Members of short section；Wherein, figure (a) indicates the vertical profile signal of Local Members
Figure；Scheme (b) to indicate using part element cross-section schematic diagram when square section；Scheme (c) to indicate to use the rectangular section current political situation
Portion's element cross-section schematic diagram；
Fig. 9 is the schematic diagram that long section is cut into four Local Members；Wherein, figure (a) indicates arrangement cutting line in long section
Schematic front view；Scheme (b) to indicate using the schematic side view for arranging cutting line in square section duration section；Figure (c) expression is adopted
With the schematic side view for arranging cutting line in the duration section of rectangular section；
Figure 10 is the structural schematic diagram of the Local Members of long section；Wherein, figure (a) indicates the front view of Local Members；Figure
(b) side view using Local Members when square section is indicated；Scheme the side of Local Members when (c) indicates to use rectangular section
View；
Figure 11 is the schematic cross-sectional view of the Local Members of long section；Wherein, figure (a) indicates that the vertical profile of Local Members shows
It is intended to；Scheme (b) to indicate using part element cross-section schematic diagram when square section；When scheming (c) expression using rectangular section
The cross-sectional view of Local Members；
Figure 12 is the schematic diagram that carbon-fibre strips are added on the Local Members of long section.
Reference numeral meaning is as follows：
1, large scale prefabricated reinforced column component；11, concrete；12, stirrup；13, muscle is indulged；2, long section 2；3, short section；
4, the Local Members of long section；5, the Local Members of short section；6, carbon-fibre strips；7, cutting line；8, cutting line.
Specific implementation mode
The present invention is described in detail below with reference to the accompanying drawings and embodiments.
The present invention proposes a kind of structure and property detection method of large scale prefabricated reinforced column component, including following step
Suddenly：
1) as shown in Figs. 1-5, by large scale prefabricated reinforced column component 1 (its cross sectional shape is square or rectangle)
Along cross-sectional cut at not equal two sections of length, it is denoted as long section 2 and short section 3 respectively.
2) as illustrated in figs. 6-11, long section 2 and short section 3 are cut along length direction along cross cut surface respectively,
Obtain four long section of Local Members 4 and the Local Members 5 of four short sections；The Local Members 4 of obtained long section and short section
Local Members 5 should ensure that section is square and (cuts off redundance when necessary), and the length of the Local Members 5 of short section with
The ratio between section length of side is not less than 3.
3) axial compression tests are carried out successively to the Local Members 5 of whole short sections 3, tests its compression bearing, to
Obtain the axial compressive property of Local Members 5；The Local Members 4 of whole length sections 2 are carried out, by curved experiment, testing it successively
Bearing capacity, amount of deflection and fracture width, to obtain the flexural property of Local Members 4.
After testing if the performance of Local Members 4,5 meets qualified index, prove that defect is not present in Local Members, i.e.,
Obtain the conclusion of large scale prefabricated 1 performance of reinforced column component qualification.
As shown in figure 12, it is carried out before by curved experiment in the Local Members 4 to long section 2, the Local Members 4 of long section 2 is adopted
It is reinforced with carbon-fibre strips 6, carbon-fibre strips 6 are spaced apart along the length direction of the Local Members 4 of long section 2.
The principle of the method for the present invention is as follows：Axial compression tests are carried out to the Local Members 5 of short section, test its axle center by
Press bearing capacity, axial compression tests that can detect the axial compressive property of component；The Local Members 4 of long section are carried out by curved
Experiment, tests its bearing capacity, amount of deflection and fracture width, can be with the flexural property of detection means by curved experiment.After testing if office
The performance of portion's component meets qualified index, then proving Local Members, there is no defects to get large scale prefabricated reinforced column is gone out
The conclusion of component performance qualification.
The various embodiments described above are merely to illustrate the present invention, and the implementation steps etc. of wherein method may be changed,
Every equivalents carried out based on the technical solution of the present invention and improvement should not exclude the protection model in the present invention
Except enclosing.
Claims (3)
1. a kind of structure and property detection method of large scale prefabricated reinforced column component, includes the following steps：
1) by large scale prefabricated reinforced column component along cross-sectional cut at not equal two sections of length, be denoted as long section and short respectively
Section；
2) long section and short section are cut along length direction along cross cut surface respectively, obtains four long section of local structure
The Local Members of part and four short sections；
3) axial compression tests are carried out successively to the Local Members of whole short sections, its compression bearing is tested, to obtain office
The axial compressive property of portion's component；The Local Members of all long sections are carried out successively by curved experiment, test its bearing capacity, amount of deflection and
Fracture width, to obtain the flexural property of Local Members；
After testing if the performance of Local Members meets qualified index, proving Local Members, there is no defects to get large size is gone out
The conclusion of prefabricated reinforced concrete column component performance qualification.
2. a kind of structure and property detection method of large scale prefabricated reinforced column component as described in claim 1, feature
It is：It carries out before by curved experiment, the Local Members of long section is reinforced using carbon-fibre strips, carbon fiber to the Local Members of long section
Dimension item is spaced apart along the length direction of the Local Members of long section.
3. a kind of structure and property detection method of large scale prefabricated reinforced column component as claimed in claim 1 or 2, special
Sign is：The Local Members of the Local Members and short section of obtained long section, cut off redundance when necessary in the step 2),
To ensure that section is square, and the ratio between the length of the Local Members of short section and the section length of side are not less than 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810446874.8A CN108627397A (en) | 2018-05-11 | 2018-05-11 | Structural performance inspection method for large prefabricated reinforced concrete column member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810446874.8A CN108627397A (en) | 2018-05-11 | 2018-05-11 | Structural performance inspection method for large prefabricated reinforced concrete column member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108627397A true CN108627397A (en) | 2018-10-09 |
Family
ID=63692689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810446874.8A Pending CN108627397A (en) | 2018-05-11 | 2018-05-11 | Structural performance inspection method for large prefabricated reinforced concrete column member |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108627397A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111444562A (en) * | 2020-03-13 | 2020-07-24 | 武汉理工大学 | Method for determining bearing capacity of light ultra-high performance concrete column under compression in axis |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11326162A (en) * | 1998-05-21 | 1999-11-26 | Shimizu Corp | Method for sampling core specimen of concrete |
| CN101620042A (en) * | 2008-07-02 | 2010-01-06 | 张国志 | Method for detecting compressive strength of concrete by body sampling |
| CN102252916A (en) * | 2011-04-25 | 2011-11-23 | 山东省交通科学研究所 | Method for testing fatigue damage of inorganic binding material stabilizing material |
| KR101394222B1 (en) * | 2013-06-10 | 2014-05-14 | 한국지질자원연구원 | Apparatus for cutting core sample equally |
| CN104132846A (en) * | 2014-06-30 | 2014-11-05 | 安徽省建筑科学研究设计院 | Tube pile body concrete total cross section intensity examination method |
| CN104964874A (en) * | 2015-05-26 | 2015-10-07 | 宿州学院 | Pit sand concrete compressive strength detection method and apparatus thereof |
-
2018
- 2018-05-11 CN CN201810446874.8A patent/CN108627397A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11326162A (en) * | 1998-05-21 | 1999-11-26 | Shimizu Corp | Method for sampling core specimen of concrete |
| CN101620042A (en) * | 2008-07-02 | 2010-01-06 | 张国志 | Method for detecting compressive strength of concrete by body sampling |
| CN102252916A (en) * | 2011-04-25 | 2011-11-23 | 山东省交通科学研究所 | Method for testing fatigue damage of inorganic binding material stabilizing material |
| KR101394222B1 (en) * | 2013-06-10 | 2014-05-14 | 한국지질자원연구원 | Apparatus for cutting core sample equally |
| CN104132846A (en) * | 2014-06-30 | 2014-11-05 | 安徽省建筑科学研究设计院 | Tube pile body concrete total cross section intensity examination method |
| CN104964874A (en) * | 2015-05-26 | 2015-10-07 | 宿州学院 | Pit sand concrete compressive strength detection method and apparatus thereof |
Non-Patent Citations (2)
| Title |
|---|
| 张玉敏: "不同应变率下混凝土力学性能的试验研究", 《中国博士学位论文全文数据库（电子期刊）工程科技Ⅱ辑》 * |
| 胡孔国 等: "碳纤维布加固混凝土桥面板受弯性能试验研究", 《建筑结构》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111444562A (en) * | 2020-03-13 | 2020-07-24 | 武汉理工大学 | Method for determining bearing capacity of light ultra-high performance concrete column under compression in axis |
| CN111444562B (en) * | 2020-03-13 | 2023-01-24 | 武汉理工大学 | Method for determining bearing capacity of light ultra-high performance concrete column under compression in axis |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Chen et al. | Experimental study on fatigue performance of UHPC-orthotropic steel composite deck | |
| LU500213B1 (en) | Concrete loading device for simulating stress state of any point of tunnel | |
| CN102721637B (en) | Multi-functional test system and method for concrete durability under action of continuous pressure | |
| Ascione et al. | An experimental study on the long-term behavior of CFRP pultruded laminates suitable to concrete structures rehabilitation | |
| CN105651474B (en) | Beam analog loading test method is transported on prestressed concrete entire precasting box girders beam | |
| Graybeal | Compression testing of ultra-high-performance concrete | |
| CN1340227A (en) | Method and device for crimping composite electrical insulators | |
| Chen et al. | Experimental investigation of thin-walled complex section concrete-filled steel stub columns | |
| CN108037020B (en) | Device for testing interfacial shear strength between fiber composite rod layers | |
| CN108627397A (en) | Structural performance inspection method for large prefabricated reinforced concrete column member | |
| CN101435758B (en) | Method for testing direct tensile strength of concrete base cleaning pulp or mortar | |
| Turvey et al. | Shear failure strength of web–flange junctions in pultruded GRP WF profiles | |
| CN207488049U (en) | A kind of simple die device that can largely prepare concrete sample | |
| US9835611B2 (en) | Stress history measurement method and stress sensor | |
| CN106908239B (en) | A kind of shear pin bearing load and its measurement method of distribution | |
| CN205981524U (en) | Be used for civil engineering prestressing force shearing force detection device | |
| CN114897841A (en) | On-site detection and calculation analysis method for vertical compressive stress of plate-type rubber support | |
| Denavit et al. | Advanced analysis and seismic design of concrete-filled steel tube structures | |
| CN209927584U (en) | Two-stage lever type mechanical experiment device | |
| Abdelrahman et al. | State-of-the-art review on FRP strengthened concrete columns | |
| CN204330481U (en) | Pressure cuts cohesive strength test fixture | |
| Wei et al. | Axial experiment on CFRP confined steel reinforced concrete columns with partial deteriorated strength | |
| CN210108580U (en) | Bridge external cable effective stress testing device | |
| CN219799095U (en) | Recycled concrete detects resiliometer | |
| Nagayama et al. | Tensile stress-strain relationship of high-performance fiber reinforced cement composites |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181009 |