CN207832649U - High-strength bolt anti-slip coefficient test specimen - Google Patents
High-strength bolt anti-slip coefficient test specimen Download PDFInfo
- Publication number
- CN207832649U CN207832649U CN201820150045.0U CN201820150045U CN207832649U CN 207832649 U CN207832649 U CN 207832649U CN 201820150045 U CN201820150045 U CN 201820150045U CN 207832649 U CN207832649 U CN 207832649U
- Authority
- CN
- China
- Prior art keywords
- plate
- slip coefficient
- test specimen
- bolt
- strength
- 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
Links
Landscapes
- Connection Of Plates (AREA)
Abstract
The utility model is related to a kind of high-strength bolt anti-slip coefficient test specimens, including plate a and plate b, the plate a and plate b to be respectively provided with two, and the plate b is set up in parallel and there are gaps between plate b；The upper and lower surface of the plate b is correspondingly provided with the gap between plate a and the plate b and is located at the centre positions the plate a；Correspondence opens up hole on the plate a, plate b, and the plate a and plate b are connected and fixed by high-strength bolt across the hole；The plate a and plate b surface treatments are for Sa2.5 grades and within the scope of the high strength exploitation, usual U >=0.35 of anti-slip coefficient of the contact surface between plate a and plate b.For plate in the utility model within the scope of high strength exploitation, the contact surface of component uses blasting treatment, anti-slip coefficient to more easily reach design requirement；Using test specimen provided by the utility model, connecting portion stress friction design requirement can be preferably obtained.
Description
Technical field
The utility model belongs to anti-slip coefficient test specimen field more particularly to a kind of high-strength bolt anti-slip coefficient test specimen.
Background technology
The test specimen of anti-slip coefficient inspection should be processed by manufactory, and test specimen should be same with representative steel structure member
Material, same batch of making criticize same performance etc. using same rubbing surface treatment process and surface state having the same, and using same
The high strength bolt connection pairs of grade, are stored under same environment.Steel plate thickness will determine according to representational position in engineering,
Before test specimen plate face answers smooth, no greasy dirt, edge non-trimming, the burr in hole and plate, and core thickness to ensure rubbing surface sliding
Steel plate is in elastic deformation always.High strength exploitation is to rapidly develop to connect with the bolt of application.Connection
The anti-slip coefficient of rubbing surface is the important parameter of steel construction high strength exploitation design, and whether practical anti-slip coefficient
It is the key that ensure that steel construction is safe to use to meet design requirement.
Utility model content
The utility model, which provides, is more easily satisfied design requirement, while a kind of relatively high high intensity spiral shell of anti-slip coefficient
Bolt anti-slip coefficient test specimen.
A kind of high-strength bolt anti-slip coefficient test specimen, including plate a and plate b, the plate a and plate b are respectively provided with
Two, the plate b is set up in parallel and there are gaps between plate b；The upper and lower surface of the plate b be correspondingly provided with plate a,
And the gap between the plate b is located at the centre positions the plate a；Correspondence opens up hole on the plate a, plate b, high-strength
The plate a and plate b are connected and fixed by degree bolt across the hole；The plate a and plate b are surface-treated as Sa2.5 grades simultaneously
And within the scope of the high strength exploitation, the anti-slip coefficient of the contact surface between plate a and plate b (coefficient data by
Design determine) usually U >=0.35.
Preferably, the high-strength bolt is high-strength hexagon socket-head bolt or torsion shear type high tensile bolt.
Preferably, the high-strength bolt (steel building) is routinely equipped with four sets.
Preferably, the material of the plate a and plate b is Q345B or Q235B or material steel construction material is specified in design
Material.
Preferably, the length × width × height of the plate a is 325 × 100 × 10mm, and the length × width × height of plate b is 300
Gap between × 100 × 20mm, plate b is 5mm.
Material is used to specify material steel structure material for Q345B or Q235B or design.
Technique：
Anti-slip coefficient is the important indicator of steel construction high strength exploitation, in the reliability side for ensureing steel structure connection
Mask is significant, but there are many factor for influencing anti-slip coefficient.3 groups are taken to same type of material and node, friction-type high intensity
Bolt test specimen carries out relevant examination from the methods of shot-peening mode, resting period and prestretching force control method to anti-slip coefficient
Test research；The result shows that shot blasting on surface derusting mode has more superiority than conventional treatment mode, increase with the test specimen resting period, resists
Slip coefficient also improves；The reliability that pretension mode measures anti-slip coefficient is high.
The utility model is using 1) modular in design, and all external member automatic cuttings, geometric dimension is accurate, using by 1#2#3#
Plate unit assembled window；2) assembling is assembled using fixed mould bases, ensures component overall dimensions standard；3) processing in hole, using numerical control
Drilling, pitch-row size are accurate；4) hexagonal or the connection of torque-shear type high-strength bolt in high intensity are used；5) special detection authority checks are sent.
1#：- 10*100*325 (q235b or q345b), 2#：- 25*100*310 (q235b or q345b).
The utility model is in design：1) cut edge forbids have truncation, 2) bore edges are forbidden jagged, and 3) rubbing surface table
Surface treatment must reach Sa2.5 grades, 4) surface must be clean and tidy, forbids have dirt and dust, 5) within the scope of high strength exploitation, structure
It is to require with design parameter that the contact surface of part, which uses blasting treatment, anti-slip coefficient, and U >=0.35 must not brush paint or be stained,
All installation bolt constructions have to comply with code requirement.High-strength bolt anti-slip coefficient test specimen is conducive to the high-strength company of every engineering
It connects easy to detect, using the design method, can preferably obtain connecting portion stress friction and meet design requirement.
Always an engineering takes once the previous test specimen, the discontinuous operation of each process, the processing item of final each engineering practice
Part and surface treatment have varying environment and mode, quality process that unification is not achieved, and design ratio data are not achieved in as a result detection
It is required that must remake.It by improving, is witnessed and is drawn materials using each engineering workshop, blanking is surface-treated, drilling, and bolt is just twisted
Power is read, and the continuous productive processes technology such as stubborn power reading, reaches environment method and stablize relatively, it is ensured that inspection part one-time detection passes through eventually.
All improved in time, economy and prestige.
The utility model this have the advantage that compared with the existing technology：Plate in the utility model connects in high-strength bolt
It connects in range, the contact surface of component uses blasting treatment, anti-slip coefficient to more easily reach design requirement；Connection between plate is adopted
With high strength exploitation, bolt construction follows strictly code requirement so that test specimen is conducive to the high strong ties of every engineering；Using
Test specimen provided by the utility model can preferably obtain connecting portion stress friction design requirement.
Description of the drawings
Fig. 1 is the utility model embodiment structural schematic diagram.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is the dimensional drawing of the utility model embodiment.
Fig. 4 is the side view of Fig. 3.
Specific implementation mode
The utility model is described further below according to attached drawing：
As shown in Figure 1, 2, a kind of high-strength bolt anti-slip coefficient test specimen, including plate a 1 and plate b 2, the plate
Part a 1 and plate b 2 is respectively provided with two, and the plate b 2 is set up in parallel and there are gaps between plate b 2；The plate b
2 upper and lower surface is correspondingly provided with the gap between plate a 1 and the plate b 2 and is located at 1 centre positions plate a；
Correspondence opens up hole on the plate a 1, plate b 2, and high-strength hexagon socket-head bolt 3 (or torsion shear type high tensile bolt) is worn
The hole is crossed to be connected and fixed the plate a 1 and plate b 2.The high-strength hexagon socket-head bolt 3 is equipped with 4 sets, is located at plate
The both sides in the gap between part b 2.The plate a 1 and plate b 2 surface treatments are for Sa2.5 grades and in the high intensity spiral shell
In 3 join domain of bolt, the contact surface between plate a 1 and plate b 2 uses blasting treatment so that anti-slip coefficient U >=0.35.
The material of the plate a 1 and plate b 2 is Q345B (or material steel structure material is specified in Q235B or design).
As shown in Figure 3,4, in the present embodiment, the size of high-strength bolt anti-slip coefficient test specimen, plate a 1 are provided with
Size be length × width × height be 325 × 100 × 10mm；The size of plate b 2 is that length × width × height is 300 × 100 × 20mm；
Gap between plate b 2 is 5mm, and the performance parameter of high-strength hexagon socket-head bolt 3 is M20/10.9S,It is described high-strength
It is 45mm to spend both ends distance of the hexagon socket head cap screw 3 apart from plate a 1, between the high-strength hexagon socket-head bolt 3 on plate b 2 away from
From for 70mm.
Claims (5)
1. a kind of high-strength bolt anti-slip coefficient test specimen, it is characterised in that：Including plate a and plate b, the plate a and plate
Part b is respectively provided with two, and the plate b is set up in parallel and there are gaps between plate b；The upper and lower surface of the plate b corresponds to
It is located at the centre positions the plate a equipped with the gap between plate a and the plate b；It is corresponding on the plate a, plate b
Hole is opened up, the plate a and plate b are connected and fixed by high-strength bolt across the hole；The plate a and plate b surface treatments
For Sa2.5 grades and within the scope of the high strength exploitation, the anti-slip coefficient U of the contact surface between plate a and plate b
≥0.35。
2. a kind of high-strength bolt anti-slip coefficient test specimen according to claim 1, it is characterised in that：The high intensity
Bolt is high-strength hexagon socket-head bolt or torsion shear type high tensile bolt.
3. a kind of high-strength bolt anti-slip coefficient test specimen according to claim 2, it is characterised in that：The high intensity
Bolt is equipped with four sets.
4. a kind of high-strength bolt anti-slip coefficient test specimen according to claim 3, it is characterised in that：The plate a
Material with plate b is Q345B or Q235B or material steel structure material is specified in design.
5. a kind of high-strength bolt anti-slip coefficient test specimen according to any one of claims 1-4, it is characterised in that：Institute
The length × width × height of the plate a stated is 325 × 100 × 10mm, and the length × width × height of plate b is 300 × 100 × 20mm, plate b
Between gap be 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820150045.0U CN207832649U (en) | 2018-01-29 | 2018-01-29 | High-strength bolt anti-slip coefficient test specimen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820150045.0U CN207832649U (en) | 2018-01-29 | 2018-01-29 | High-strength bolt anti-slip coefficient test specimen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207832649U true CN207832649U (en) | 2018-09-07 |
Family
ID=63395168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820150045.0U Expired - Fee Related CN207832649U (en) | 2018-01-29 | 2018-01-29 | High-strength bolt anti-slip coefficient test specimen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207832649U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821935A (en) * | 2019-11-04 | 2020-02-21 | 东南大学 | High-strength bolt connection method for stainless steel structure |
| CN110907163A (en) * | 2019-12-16 | 2020-03-24 | 河南省城乡规划设计研究总院有限公司 | Friction type high-strength bolt connection performance detection test device, test piece and method |
-
2018
- 2018-01-29 CN CN201820150045.0U patent/CN207832649U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821935A (en) * | 2019-11-04 | 2020-02-21 | 东南大学 | High-strength bolt connection method for stainless steel structure |
| CN110907163A (en) * | 2019-12-16 | 2020-03-24 | 河南省城乡规划设计研究总院有限公司 | Friction type high-strength bolt connection performance detection test device, test piece and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Tsao et al. | Taguchi analysis of delamination associated with various drill bits in drilling of composite material | |
| Zhao et al. | Single lap joints with rounded adherend corners: Stress and strain analysis | |
| CN207832649U (en) | High-strength bolt anti-slip coefficient test specimen | |
| CN107742025B (en) | Method for predicting fatigue life of airplane metal skin after impact | |
| Liu et al. | Experiment on conical pick cutting rock material assisted with front and rear water jet | |
| Li et al. | Study on roadheader cutting load at different properties of coal and rock | |
| CN101509895A (en) | Wire rope load performance undamaged evaluating method | |
| Cramer et al. | Model for stress analysis and strength prediction of lumber | |
| CN112213215A (en) | Method for detecting compressive strength of concrete through combined resilience | |
| Parashar et al. | Analysis of machining behavior of Al/A206-Al2O3 metal matrix composite using end milling process | |
| CN206787949U (en) | A kind of single shear performance testing device for being widely used in minute sample | |
| CN108197413A (en) | The steel hydraulic support fatigue reliability evaluation method of variable amplitude loading lower band Pacing sites structure | |
| CN107044941A (en) | A kind of single shear performance test methods for being widely used in minute sample | |
| Kakei et al. | Development of fracture and damage modeling concepts for composite materials | |
| CN111411903A (en) | Method for determining secondary shoulder clearance of double-shoulder drill rod joint | |
| CN213482137U (en) | Wear-resisting block | |
| Huang et al. | A Multi-level Stress–Strain Relationship and Hydraulic Characteristics for Supporting Grain-Porous Rock Fracture System | |
| CN210322560U (en) | A anchor clamps for diamond compact piece strikes detection | |
| Raja et al. | Optimization of Drilling Parameters in Sisal‐Human Hair Hybrid Composite Using Grey Relational Analysis | |
| Mabe et al. | Deep hole drill residual stress measurement technique experimental validation | |
| CN111400839B (en) | Continuous pipe safety evaluation method with spherical scratches and indentations on surface | |
| CN111143914B (en) | Bridge concrete shear key mechanical model rapid estimation method considering construction deviation | |
| CN205607934U (en) | Dual -purpose ultrasonic phased array voussoir of detecting a flaw | |
| Hammouda | A two‐dimensional elastic–plastic finite element analysis of friction effects on sliding crack surfaces in full or partial contact | |
| Jejukar et al. | Optimization of surface grinding process parameter for AISI 321 by Using Taguchi Method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180907 Termination date: 20210129 |