CN107121247A - Unilateral tunnel blower supporting structure loading test apparatus and method - Google Patents
Unilateral tunnel blower supporting structure loading test apparatus and method Download PDFInfo
- Publication number
- CN107121247A CN107121247A CN201710356892.2A CN201710356892A CN107121247A CN 107121247 A CN107121247 A CN 107121247A CN 201710356892 A CN201710356892 A CN 201710356892A CN 107121247 A CN107121247 A CN 107121247A
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- testing jig
- type testing
- crossbeam
- supporting structure
- entablature
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- 238000012360 testing method Methods 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 12
- 238000005520 cutting process Methods 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 239000003351 stiffener Substances 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 4
- 238000012216 screening Methods 0.000 claims description 4
- 230000001133 acceleration Effects 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 2
- 238000002474 experimental method Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010998 test method Methods 0.000 abstract description 3
- 238000003466 welding Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 238000009423 ventilation Methods 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0075—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by means of external apparatus, e.g. test benches or portable test systems
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention discloses a kind of unilateral tunnel blower supporting structure loading test device, including I type testing jig and II type testing jig, I type testing jig includes entablature, sill, connecting pole and long bolt, the II type testing jig includes crossbeam, post leg, the I type testing jig and II type testing jig are reversely arranged in a crossed manner, and long bolt links into an integrated entity I type testing jig with II type testing jig, hollow jack；Crossbeam undertakes upward counter-force by reinforcing disk and hollow jack top contact, and post leg is contacted with lining cutting, and upward counter-force is delivered in lining cutting.The present invention can objective simulates blower fan supporting structure stress, test method is easy-to-understand, and experimental rig connection is integral, and installation procedure is few, and process of the test is simple, and test period is short.The detection means is by shaped steel welding production, and connector is standard component, and structural shape is simple, it is easy to make；Blower fan supporting structure and lining concrete can be protected in experiment.
Description
Technical field
The invention belongs to Tunnel testing technical field, more particularly to a kind of unilateral tunnel blower supporting structure bearing capacity inspection
Survey apparatus and method.
Background technology
With the development of traffic technique, long tunnel, super long tunnel are more and more, and tunnel ventilation turns into influence road-ability
Key factor.Existing most of tunnel ventilations use jet blower, hang on tunnel top, according to《Highway tunnel ventilation is set
Count detailed rules and regulations》（JTG/T D70/2-02-2014）Middle regulation, tunnel jet blower should carry out load before installing to blower fan supporting structure
Experiment, test value is no less than 15 times of blower fan dead load, but does not enter professional etiquette to test method, test apparatus, experimental rig
It is fixed.The present invention is a kind of unilateral tunnel blower supporting structure loading test device, is used in combination with anchor rod drawing instrument, is used
Unilateral hubbing, objective simulates blower fan supporting structure stress, by way of hierarchical loading, detection blower fan supporting structure is held
Carry power.The detection means is all using shaped steel welding production, and structural shape is simple, practical.
The content of the invention
To solve above mentioned problem present in prior art and actual conditions, the invention provides a kind of unilateral tunnel wind
Machine supporting structure loading test device, including I type testing jig and II type testing jig, I type testing jig include entablature, lower horizontal stroke
Beam, connecting pole and long bolt, entablature are connected by connecting pole with sill, and entablature is that double limb channel-section steels are welded with sill
Into hollow, the entablature is provided with the elliptical hole of some up/down perforations, and high-strength bolt passes through elliptical hole and blower fan base
U-type groove connection on seat；Sill is contacted with hollow very heavy top/bottom part, and undertakes downward counter-force；The II type testing jig bag
Crossbeam, post leg are included, crossbeam is welded into hollow by double limb channel-section steels, and the crossbeam center is provided with the mesopore of up/down perforation；The horizontal stroke
Reinforcing disk is arranged below in beam mesopore, and post leg is thin-wall steel tube；The I type testing jig and II type testing jig are reversely arranged in a crossed manner, long
Screw rod links into an integrated entity I type testing jig with II type testing jig, hollow jack；Crossbeam is by reinforcing disk and hollow jack top
Portion is contacted, and undertakes upward counter-force, and post leg is contacted with lining cutting, and upward counter-force is delivered in lining cutting.
Preferably, connecting pole is single limb channel-section steel, is welded to connect with entablature, sill.
Preferably, the entablature, sill, crossbeam two ends are equipped with sealing, seal as a rectangle bloom.
Preferably, ribbed stiffener and combination mat are provided with below the entablature on the outside of elliptical aperture between high-strength bolt head
Piece, the ribbed stiffener is a hollow, rectangular bloom.
Preferably, the reinforcing disk is an annular bloom, protects crossbeam bottom force part, and ribbed stiffener is a rectangle
Block, protects crossbeam top force part；It is a circular bloom to protect block, protects lining concrete.
Preferably, the post leg upper end is provided between protection block, connecting pole lower end and crossbeam and is provided with ribbed stiffener.
Preferably, in the I type testing jig and II type testing jig, size need to meet following requirements：30mm≤H1-H2-H3≤
50mm；130mm≤H5-H4≤ 150mm, wherein H1For connecting pole height, H2For hollow very heavy heights of roofs, H3To reinforce disk and crossbeam
The height of connection, H4For the height of entablature, H5It is the height that post leg two ends are provided with screening glass and ribbed stiffener.
The present invention discloses a kind of detection method of unilateral tunnel blower supporting structure loading test device, bag
Include following steps：
1）By the series connection orthogonal with I type testing jig of II type testing jig, crossbeam is placed under entablature, and entablature is passed through into high-strength bolt
It is connected with U-type groove；
2）It is finder charge to load first order load（F1 or F2）50%, keep this state 1min, observation U-type groove is welded with support
Connect place and support and periphery concrete situation；
3）Second level load is finder charge（F1 or F2）75%, keep this state 1min, observation U-type groove and support weld
And support and periphery concrete situation；
4）Third level load is finder charge（F1 or F2）90%, keep this state 1min, observation U-type groove and support weld
And support and periphery concrete situation；
5）Fourth stage load is finder charge（F1 or F2）100%, keep this state 5min, observation U-type groove and support weld
And support and periphery concrete situation；
F1 is short side finder charge, N in formula；F2 is long side finder charge, N；
M is blower fan gross mass, kg；G is acceleration of gravity, N/kg；For short side and vertical angle, rad；For long side and vertically
Angle, rad；F is finder charge, N；
Then
。
A kind of unilateral tunnel blower supporting structure loading test device of the disclosure of the invention is surveyed by I type testing jig, II type
Try frame composition；I type testing jig is connected by high-strength bolt with the U-type groove on blower fan support, and lower beam provides counter-force；II type is surveyed
Examination frame directly contacts that there is provided counter-force with lining cutting.The assembling orthogonal with II type testing jig of I type testing jig, II type testing jig bottom is placed
Hollow jack, three is connected by long bolt, forms one.The detection means is that shaped steel is welded, structural shape letter
It is single, it is low-cost, it is practical.
The present invention can objective simulates blower fan supporting structure stress, test method is easy-to-understand, experimental rig connection
One is connected into, installation procedure is few, process of the test is simple, and test period is short.The detection means is by shaped steel welding production, and connector is equal
For standard component, structural shape is simple, it is easy to make；Blower fan supporting structure and lining concrete can be protected in experiment.
Brief description of the drawings
Fig. 1 is that the I type test of the unilateral tunnel blower supporting structure loading test device of the embodiment of the present invention is erected
Face figure；
Fig. 2 is II type testing jig facade of the unilateral tunnel blower supporting structure loading test device of the embodiment of the present invention
Figure；
Fig. 3 is Fig. 1 1-1 profiles；
Fig. 4 is Fig. 1 2-2 profiles；
Fig. 5 is Fig. 1 3-3 profiles；
Fig. 6 is Fig. 1 4-4 profiles；
Fig. 7 is Fig. 2 5-5 profiles；
Fig. 8 is Fig. 2 6-6 profiles；
Fig. 9 is the use state schematic diagram of the unilateral tunnel blower supporting structure loading test device of the embodiment of the present invention.
Embodiment
Technical solution of the present invention is discussed in detail below in conjunction with the accompanying drawings
As shown in figs 1-9, a kind of unilateral tunnel blower supporting structure loading test device, including I type testing jig and II type
Testing jig, I type testing jig includes entablature 1, sill 2, connecting pole 3 and long bolt 4, and entablature 1 passes through connecting pole 3 and lower horizontal stroke
Beam 2 is connected, and entablature 1 is that double limb channel-section steels are welded into hollow with sill 2, and the entablature is provided with some up/down perforations
Elliptical hole 7, high-strength bolt 8 is connected by elliptical hole 7 with the U-type groove on blower fan pedestal；Sill 2 and hollow jack
Bottom is contacted, and undertakes downward counter-force；The II type testing jig includes crossbeam 11, post leg 12, and crossbeam 11 is welded by double limb channel-section steels
Hollow is connected into, the center of crossbeam 11 is provided with the mesopore 10 of up/down perforation；Reinforcing disk 13 is arranged below in the crossbeam mesopore 10,
Post leg 12 is thin-wall steel tube；The I type testing jig and II type testing jig are reversely arranged in a crossed manner, and long bolt 4 is by I type testing jig and II
Type testing jig, hollow jack link into an integrated entity；Crossbeam 11 by reinforcing disk 13 and hollow jack top contact, and undertake to
On counter-force, post leg 12 contacts with lining cutting, upward counter-force is delivered in lining cutting.
Connecting pole 3 is single limb channel-section steel, is welded to connect with entablature 1, sill 2；
The entablature 1, sill 2, the two ends of crossbeam 11 are equipped with sealing 5, and sealing 5 is a rectangle bloom.
The entablature 1 is provided with ribbed stiffener 6 and compound gasket 9, institute between the head of high-strength bolt 8 below on the outside of elliptical aperture
Ribbed stiffener 6 is stated for a hollow, rectangular bloom.
The reinforcing disk 13 is an annular bloom, and protection crossbeam 11 bottom force part, ribbed stiffener 14 is a rectangular block,
Protect the top force part of crossbeam 11；It is a circular bloom to protect block 15, protects lining concrete.
The upper end of post leg 12 is provided between protection block 15, connecting pole lower end and crossbeam and is provided with ribbed stiffener 14.
Sealing 5 is a rectangle bloom, increases transverse beam rigidity；Ribbed stiffener 6 is that a hollow, rectangular bloom, compound gasket 9 are 2
Annular bloom of different sizes, both protect crossbeam bottom force part；The up/down perforation of elliptical aperture 7, be easy to high-strength bolt 8 with
U-type groove is connected.
Reinforcing disk 13 is an annular bloom, and protection crossbeam 11 bottom force part, ribbed stiffener 14 is that a rectangle is fast, protection
The top force part of crossbeam 11；It is a circular bloom to protect block 15, protects lining concrete.
In the I type testing jig and II type testing jig, size need to meet following requirements：30mm≤H1-H2-H3≤50mm；
130mm≤H5-H4≤ 150mm, wherein H1For connecting pole height, H2For hollow very heavy heights of roofs, H3It is connected to reinforce disk with crossbeam
Height, H4For the height of entablature, H5It is the height that post leg two ends are provided with screening glass and ribbed stiffener.
In the present embodiment, apparatus structure size is as follows：
Entablature 1, sill 2, crossbeam 11 are welded into hollow by double No. 8 channel-section steels of limb, and the long 1030mm of entablature 1, section are wide
80mm × high 86mm,H 4=86mm；The major axis 40mm of elliptical aperture 7, short axle 20mm, ribbed stiffener 6 are a hollow, rectangular bloom, interior rectangle
40mm × 20mm, outer rectangle 80mm × 60mm, the diameter 20mm of mesopore 10；The long 720mm of sill 2, the wide 80mm in section × high 86mm；
Connecting pole 3 is high（H 1）360mm, with entablature 1, the equal full weld of sill 2；The long 460mm of crossbeam 11, the wide 80mm in section × high 86mm,
Weld a diameter in middle partD=80mm, thick 10mm reinforcing disk 13,H 3=96mm；Post leg 12 is long 200mm, external diameter 45mm, wall thickness
3mm thin-wall steel tubes, in one long 80mm of the upper weld × wide 40mm × thickness 10mm at the two ends of crossbeam 11 ribbed stiffener 14, in post leg
Diameter 45mm × thickness 10mm screening glass 15 is welded on 12 tops,H 5=220mm.All sealings 5 are long 86mm × wide 80mm
× thickness 10mm bloom.
Hollow very heavy heights of roofs used in experimentH 2=220mm, thenH 1-H 2-H 3=360-220-96=44mm；H 5-H 4=
220-86=134mm, size need to meet following requirements：30mm≤H 1-H 2-H 3≤50mm；130mm≤H 5-H 4≤150mm。
The present invention discloses a kind of detection method of unilateral tunnel blower supporting structure loading test device, bag
Include following steps：
1）By the series connection orthogonal with I type testing jig of II type testing jig, crossbeam 11 is placed under entablature 10, and entablature 1 is passed through into height
Strength bolt 8 is connected with U-type groove；
2）It is finder charge to load first order load（F1 or F2）50%, keep this state 1min, observation U-type groove is welded with support
Connect place and support and periphery concrete situation；
3）Second level load is finder charge（F1 or F2）75%, keep this state 1min, observation U-type groove and support weld
And support and periphery concrete situation；
4）Third level load is finder charge（F1 or F2）90%, keep this state 1min, observation U-type groove and support weld
And support and periphery concrete situation；
5）Fourth stage load is finder charge（F1 or F2）100%, keep this state 5min, observation U-type groove and support weld
And support and periphery concrete situation；
F1 is short side finder charge, N in formula；F2 is long side finder charge, N；
M is blower fan gross mass, kg；G is acceleration of gravity, N/kg；For short side and vertical angle, rad；For long side and vertically
Angle, rad；F is finder charge, N；
Then
。
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention,
Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic.
Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., should be included in the present invention's
Within protection domain.
Claims (8)
1. a kind of unilateral tunnel blower supporting structure loading test device, it is characterised in that including I type testing jig and II type
Testing jig, I type testing jig includes entablature, sill, connecting pole and long bolt, and entablature is connected by connecting pole and sill
Connect, entablature is that double limb channel-section steels are welded into hollow with sill, and the entablature is provided with the ellipse of some up/down perforations
Through hole, high-strength bolt is connected by elliptical hole with the U-type groove on blower fan pedestal；Sill is contacted with hollow very heavy top/bottom part,
And undertake downward counter-force；The II type testing jig includes crossbeam, post leg, and crossbeam is welded into hollow by double limb channel-section steels, described
Crossbeam center is provided with the mesopore of up/down perforation；Reinforcing disk is arranged below in the crossbeam mesopore, and post leg is thin-wall steel tube；I type
Testing jig and II type testing jig are reversely arranged in a crossed manner, and long bolt connects into I type testing jig with II type testing jig, hollow jack
One；Crossbeam undertakes upward counter-force by reinforcing disk and hollow jack top contact, and post leg is contacted with lining cutting, will be to
On counter-force be delivered in lining cutting.
2. a kind of unilateral tunnel blower supporting structure loading test device according to claim 1, it is characterised in that even
It is single limb channel-section steel to connect post, is welded to connect with entablature, sill.
3. a kind of unilateral tunnel blower supporting structure loading test device according to claim 1, it is characterised in that
The entablature, sill, crossbeam two ends are equipped with sealing, seal as a rectangle bloom.
4. a kind of unilateral tunnel blower supporting structure loading test device according to claim 1, it is characterised in that institute
State below entablature and to be provided with ribbed stiffener and compound gasket on the outside of elliptical aperture between high-strength bolt head, the ribbed stiffener is in one
Empty rectangle bloom.
5. a kind of unilateral tunnel blower supporting structure loading test device according to claim 1, it is characterised in that institute
It is an annular bloom to state reinforcing disk, protects crossbeam bottom force part, and ribbed stiffener is a rectangular block, protection crossbeam top stress
Position；It is a circular bloom to protect block, protects lining concrete.
6. a kind of unilateral tunnel blower supporting structure loading test device according to claim 1, it is characterised in that institute
Post leg upper end is stated to be provided between protection block, connecting pole lower end and crossbeam provided with ribbed stiffener.
7. a kind of unilateral tunnel blower supporting structure loading test device according to claim 1, it is characterised in that institute
State in I type testing jig and II type testing jig, size need to meet following requirements：30mm≤H1-H2-H3≤50mm；130mm≤H5-H4
≤ 150mm, wherein H1For connecting pole height, H2For hollow very heavy heights of roofs, H3To reinforce height, the H that disk is connected with crossbeam4For
The height of entablature, H5It is the height that post leg two ends are provided with screening glass and ribbed stiffener.
8. the detection side of unilateral tunnel blower supporting structure loading test device any one of a kind of claim 1-7
Method, it is characterised in that comprise the following steps：
1）By the series connection orthogonal with I type testing jig of II type testing jig, crossbeam is placed under entablature, and entablature is passed through into high-strength bolt
It is connected with U-type groove；
2）It is finder charge to load first order load（F1 or F2）50%, keep this state 1min, observation U-type groove is welded with support
Connect place and support and periphery concrete situation；
3）Second level load is finder charge（F1 or F2）75%, keep this state 1min, observation U-type groove and support weld
And support and periphery concrete situation；
4）Third level load is finder charge（F1 or F2）90%, keep this state 1min, observation U-type groove and support weld
And support and periphery concrete situation；
5）Fourth stage load is finder charge（F1 or F2）100%, keep this state 5min, observation U-type groove and support weld
And support and periphery concrete situation；
F1 is short side finder charge, N in formula；F2 is long side finder charge, N；
M is blower fan gross mass, kg；G is acceleration of gravity, N/kg；For short side and vertical angle, rad；For long side and vertically
Angle, rad；F is finder charge, N；
Then
。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710356892.2A CN107121247A (en) | 2017-05-19 | 2017-05-19 | Unilateral tunnel blower supporting structure loading test apparatus and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710356892.2A CN107121247A (en) | 2017-05-19 | 2017-05-19 | Unilateral tunnel blower supporting structure loading test apparatus and method |
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| Publication Number | Publication Date |
|---|---|
| CN107121247A true CN107121247A (en) | 2017-09-01 |
Family
ID=59727874
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710356892.2A Pending CN107121247A (en) | 2017-05-19 | 2017-05-19 | Unilateral tunnel blower supporting structure loading test apparatus and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114993660A (en) * | 2022-08-02 | 2022-09-02 | 临沂朝日电子有限公司 | Bearing capacity detection equipment for tunnel fan supporting structure |
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| JP2001355253A (en) * | 2000-06-12 | 2001-12-26 | Tokyo Electric Power Co Inc:The | Method and device for acting horizontal force on foundation structure |
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2017
- 2017-05-19 CN CN201710356892.2A patent/CN107121247A/en active Pending
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| JP2001355253A (en) * | 2000-06-12 | 2001-12-26 | Tokyo Electric Power Co Inc:The | Method and device for acting horizontal force on foundation structure |
| CN102134859A (en) * | 2010-01-25 | 2011-07-27 | 常州市建筑科学研究院有限公司 | Uplift resistance test device for pre-stressed pipe pile |
| AU2012101235A4 (en) * | 2012-08-14 | 2012-09-13 | Patented Foundations Pty Ltd | Rapid load capacity test |
| CN203502303U (en) * | 2013-09-29 | 2014-03-26 | 中铁十局集团第二工程有限公司 | Simple pulling resistance detection device |
| CN204903366U (en) * | 2015-08-31 | 2015-12-23 | 甘肃省交通科学研究院有限公司 | Test device is drawn in general fan base U type groove |
| CN206756410U (en) * | 2017-05-19 | 2017-12-15 | 甘肃省交通科学研究院有限公司 | Unilateral tunnel blower supporting structure loading test device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114993660A (en) * | 2022-08-02 | 2022-09-02 | 临沂朝日电子有限公司 | Bearing capacity detection equipment for tunnel fan supporting structure |
| CN114993660B (en) * | 2022-08-02 | 2022-11-08 | 临沂朝日电子有限公司 | Bearing capacity detection equipment for tunnel fan supporting structure |
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