CN208818589U - The test device of Reinforced Concrete Model beam anti-bending strength - Google Patents
The test device of Reinforced Concrete Model beam anti-bending strength Download PDFInfo
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- CN208818589U CN208818589U CN201821368094.8U CN201821368094U CN208818589U CN 208818589 U CN208818589 U CN 208818589U CN 201821368094 U CN201821368094 U CN 201821368094U CN 208818589 U CN208818589 U CN 208818589U
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- rest pad
- crossbeam
- column
- bolt hole
- pedestal
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Abstract
The utility model discloses a kind of test devices of Reinforced Concrete Model beam anti-bending strength, the support and crossbeam being distributed including loading head, two bilateral symmetries, support includes pedestal, rest pad, column and bolt, and the outer end of pedestal and the outer end of rest pad respectively include bolt hole；The both ends of crossbeam include bolt hole, and column includes axial through-hole；Rest pad is hexahedron, and hexahedral long axis direction is parallel with the long axis direction of crossbeam；Rest pad is fixed, and the bottom of column is supported by rest pad at the top of the base, and the end of crossbeam is carried on a shoulder pole at the top of column；Bolt successively passes through the bolt hole of crossbeam, the axially extending bore of column, the bolt hole of rest pad and the bolt hole of pedestal from top to bottom, and crossbeam, column, rest pad and pedestal are fixed together；Top of the end load of Reinforced Concrete Model beam in rest pad inner end.It is adapted to various sizes of Model Beam, is positioned convenient for Model Beam in length direction, is effectively saved equipment cost and consumptive material.
Description
[technical field]
The utility model relates to reinforced beam performance test more particularly to a kind of Reinforced Concrete Model beam flexing resistances
The test device of energy.
[background technique]
Concrete structure deteriorate the main reason for first is that the corrosion of reinforcing bar.The corrosion of reinforcing bar weakens effectively cutting for reinforcing bar
Area reduces the cementation between reinforcing bar and concrete, has changed simultaneously the stress-strain Constitutive Relationship of reinforcing bar, significant bad
The bearing capacity and non-deformability of reinforced concrete structural element are changed.The deterioration of concrete structure directly affects the safety of structure
Property, so it is necessary to the case where bearing capacity for probing into reinforced concrete member changes with corrosion ratio.Meanwhile armored concrete
Component is other than undertaking dead load, and also subject to diversified dynamic load, dynamic load is to the impulse ratio static load of structure to knot
The effect of structure is bigger, so also extremely have must for the research of the influence to impact load to reinforced concrete structural element bearing capacity
It wants.
In building field, beam is main supporting member, and the anti-bending bearing capacity research for beam, which is that current structure is main, grinds
Study carefully direction.Use in the prior art it is most be exactly hydraulic loaded, using oil pump by pressure rise, pass through hydraulic pressure loading device
A kind of method for applying active force to structure is current most common loading method.Its advantage is that High power output, safe operation side
Just, realization can be connect with computer to automatically control, but experiment equipment is at high cost, and most of device is only applicable to big structure
The cost of manufacture of part experiment, big component is high, and experimental period is long, and manpower and material resources consumption is big；It is big that discreteness is tested simultaneously, needs to advise greatly
The experiment of mould.
Patent No. CN201420654406.7 utility model is related to a kind of for T-type beam carbon fibre composite bendability
Can test tooling, comprising: the supports of loading head and two bilateral symmetry distributions offer on the loading head and/or support
Suitable for testing the groove of the reinforcing rib insertion of rib.The utility model can not determine tested Model Beam in length direction
Position, affects measuring accuracy.
[summary of the invention]
Tested Model Beam can be carried out in length direction the technical problem to be solved by the present invention is to provide a kind of
The Reinforced Concrete Model beam anti-bending strength test device of positioning.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is a kind of Reinforced Concrete Model beam
The test device of anti-bending strength, including support and crossbeam that loading head, two bilateral symmetries are distributed, support includes pedestal, bearing
Block, column and bolt, the outer end of pedestal and the outer end of rest pad respectively include bolt hole；The both ends of crossbeam include bolt hole, column
Including axial through-hole；Rest pad is hexahedron, and hexahedral long axis direction is parallel with the long axis direction of crossbeam；Rest pad is fixed
At the top of the base, the bottom of column is supported by rest pad, and the end of crossbeam is carried on a shoulder pole at the top of column；Bolt is successive from top to bottom
Across the bolt hole of crossbeam, the axially extending bore of column, the bolt hole of rest pad and the bolt hole of pedestal, by crossbeam, column, bearing
Block and pedestal are fixed together；Top of the end load of Reinforced Concrete Model beam in rest pad inner end.
Test noted above device, support include two block baffles and complex root fixing bolt, and two block baffles are arranged in branch
Supporting block front and rear sides, rest pad is clipped in the middle, and the height of baffle is higher than the height of rest pad；Baffle and rest pad respectively include multiple
Several lateral bolts hole, fixing bolt pass through the baffle of rest pad and rest pad two sides, and baffle and rest pad are fixed on one
It rises.
Test noted above device, it includes top plate and two pieces of tilt props that support, which includes screw, pedestal, and top plate is by tilt prop
Support；The bolt hole of pedestal is opened on top plate；The bottom surface of rest pad inner end includes threaded hole, and the inner end of base deck includes screw
Hole, screw pass through the screw hole of bottom plate, screw in the threaded hole of rest pad, rest pad and top plate are fixed together.
Test noted above device, the bolt hole at the both ends of crossbeam are oblong aperture, the long axis direction and crossbeam of oblong aperture
Long axis direction it is parallel.
Test noted above device, loading head include load bar, top plate and bottom plate and two blocks of side plates, the top plate of loading head,
Bottom plate and two blocks of side plates constitute the sleeve of rectangle, and the sleeve of rectangle covers at the middle part of Reinforced Concrete Model beam；The top of load bar
End is connect with the middle part of bottom plate.
Test noted above device, the bottom surface of loading head top plate include two parallel load ribs, load rib and reinforcing bar
The long axis direction of concrete beam model is orthogonal.
Test noted above device, including loading device, loading device include water tank, lever mechanism and fill valvular
Water inlet pipe, the water outlet water flowing case of water inlet pipe；The input terminal of lever mechanism accepts water tank, and the output of lever mechanism terminates loading head
Load bar.
The utility model is adapted to various sizes of Model Beam, is positioned convenient for Model Beam in length direction；Using
Model Beam carry out test can not only be effectively saved equipment cost and consumptive material, while can also produce in bulk bench model beam into
Row experiment, shortens experimental period.
[Detailed description of the invention]
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
Fig. 1 is the perspective view of the utility model embodiment Reinforced Concrete Model beam anti-bending strength test device.
Fig. 2 is the main view of the utility model embodiment Reinforced Concrete Model beam anti-bending strength test device.
Fig. 3 is the left view of the utility model embodiment Reinforced Concrete Model beam anti-bending strength test device.
Fig. 4 is the perspective view of the utility model embodiment loading head.
Fig. 5 is A in Fig. 3 to cross-sectional view.
Fig. 6 is the schematic diagram of the utility model embodiment loading device.
[specific embodiment]
The structure of the utility model embodiment Reinforced Concrete Model beam anti-bending strength test device is as shown in Figures 1 to 6,
Support 10 and crossbeam 2 including 1, two loading device, loading head bilateral symmetry distribution.
Support 10 includes pedestal 3, rest pad 4, column 5, two block baffles 6, bolt 7 and screw 9.Pedestal 3 includes top plate 301
With two pieces of tilt props 302, top plate 301 is supported by tilt prop 302.There is a bolt hole 303 in the outer end of 3 top plate 301 of pedestal, bearing
There is a bolt hole 401 in the outer end of block 4.Respectively there is a bolt hole 201 at the both ends of crossbeam 2, and column 5 has the through-hole of an axial direction
501.Rest pad 4 is hexahedron, and the hexahedral long axis direction of rest pad 4 is parallel with the long axis direction of crossbeam 2.Rest pad 4 is arranged
On the top surface of base deck 301, the bottom of column 5 is supported by rest pad 4, and the end of crossbeam 2 is carried on a shoulder pole at the top of column 5.
There is a threaded hole in the bottom surface of 6 inner end of rest pad, and there is a screw hole in the inner end of base deck 301, and screw 9 passes through
The screw hole of bottom plate 301 screws in the threaded hole of rest pad 4, rest pad 6 is fixed on top plate 301.
Bolt 7 successively passes through the spiral shell of the bolt hole 201 of crossbeam 2, the axially extending bore 501 of column 5, rest pad 4 from top to bottom
Crossbeam 2, column 5, rest pad 4 and pedestal 3 are fixed together by the bolt hole 303 of keyhole 401 and base deck 301.
Two block baffles 6 are arranged in 4 front and rear sides of rest pad, and rest pad 4 is clipped in the middle, and the height for keeping off 6 is higher than rest pad 4
Height.Baffle 6 is there are two lateral bolt hole 601, and there are two lateral bolts hole 402 for rest pad 4.Two fixing bolts 8
It is each passed through the bolt hole 601 of the bolt hole 402 of rest pad 4 and two transverse directions of baffle 6, baffle 6 and rest pad 4 are fixed on
Together.
The bolt hole 201 at the both ends of crossbeam 2 is oblong aperture, and the long axis direction of oblong aperture is parallel with the long axis direction of crossbeam 2.
Loading head 1 includes having gib head load bar 104, top plate 101, bottom plate 102 and two blocks of side plates 103 with rectangular opening,
Top plate 101, bottom plate 102 and the two blocks of side plates 103 of loading head 1 constitute the sleeve of rectangle.The top of load bar 104 and bottom plate 102
Middle part connection.
Top of the end load of Reinforced Concrete Model beam 100 in 4 inner end of rest pad.Loading head 1 is by top plate 101, bottom plate
102 and the sleeve of rectangle that constitutes of side plate 103 cover at the middle part of Reinforced Concrete Model beam.
There are two parallel load ribs 105, load rib 105 and Reinforced Concrete Model beam in the bottom surface of loading head top plate 301
100 long axis direction is orthogonal.
Loading device includes water tank 20, lever mechanism and fills valvular water inlet pipe, the water outlet water flowing case 20 of water inlet pipe.
The input terminal of lever mechanism accepts the gravity of water tank 20, and the output end of lever mechanism is a hanging ring 21, and hanging ring 21 connects loading head
Hook on load bar 104.
Lever mechanism is made of two sets of levers, and structure is as shown in Figure 6.
The installation implementation steps of the utility model above embodiments small beams loading device, are described as follows:
Step 1: the rest pad 4 of selection and 100 equivalent width of Reinforced Concrete Model beam, the distance between adjustment support,
Screw 9 passes through the screw hole of bottom plate 301, screws in the threaded hole of rest pad 4, rest pad 6 is fixed on top plate 301；
Step 2: after crossbeam 2 and column 5 are placed into corresponding position, crossbeam 2 is successively passed through from top to bottom using bolt 7
Bolt hole 201, the axially extending bore 501 of column 5, the bolt hole 401 of rest pad 4 and base deck 301 bolt hole 303, will
Crossbeam 2, column 5, rest pad 4 and pedestal 3 are fixed together；
Step 3: the sleeve of loading head 1 is covered in the middle part of Reinforced Concrete Model beam 100, Reinforced Concrete Model beam 100
Both ends carry on a shoulder pole on the rest pad 4 of two brackets；
Step 4: installation baffle 6.Two fixing bolts 8 be each passed through rest pad 4 bolt hole 402 and two of baffle 6
Lateral bolt hole 601, baffle 6 and rest pad 4 are fixed together, control the lateral of Reinforced Concrete Model beam 100 with this
Displacement；
Step 5: the hook on the hanging ring connection loading head of loading device lever mechanism output end, by water inlet pipe to water
It discharges water in case 20, the gravity of water tank 20 applies downward effect by middle part of the lever mechanism to Reinforced Concrete Model beam 100
Power.
Loading device lever mechanism the size of each part is as shown in fig. 6, in the present embodiment, water inlet pipe diameter is d (m), water
Stream flow velocity is v (m/s), and water flow duration is t (s) before Reinforced Concrete Model beam 100 destroys, and the self weight of water tank is G
(N), water density is ρ (Kg/m3), acceleration of gravity g, loading device acts on the broken of 100 middle part of Reinforced Concrete Model beam
Bad load F (N) are as follows:
Step 6: making the beam of different reinforcing steel corrosion rates, and it is straight to carry out low discharge (low water flow rate degree) load (Slow loading)
Load F, influence of the available difference corrosion ratio to the anti-bending bearing capacity of reinforced beam are destroyed to the destruction of test specimen beam.
It is directed to the beam of identical corrosion ratio, the flow (changing water velocity) for changing water flow can obtain under different loading velocities,
The breaking load F of reinforced beam.
Table one: the detection data table under different reinforcing steel corrosion rates and the flow condition of different water flows
The parameter list of lever mechanism in loading device shown in table two: Fig. 6
| L1(m) | L2(m) | L3(m) | L4(m) |
| 0.5 | 1 | 0.5 | 1 |
The utility model above embodiments are adapted to various sizes of Model Beam, carry out convenient for Model Beam in length direction
Positioning；Carrying out test and can not only be effectively saved equipment cost and consumptive material using Model Beam, while can also produce small in bulk
Type Model Beam is tested, and experimental period is shortened, and the limit of the beam under the available different reinforcing steel corrosion rates of the utility model is held
Carry the influence of power and different loading velocities to beam ultimate bearing capacity.
Claims (7)
1. a kind of test device of Reinforced Concrete Model beam anti-bending strength, the branch including loading head and two bilateral symmetry distributions
Seat, which is characterized in that including crossbeam, support includes pedestal, rest pad, column and bolt, the outer end of pedestal and rest pad it is outer
End respectively includes bolt hole；The both ends of crossbeam include bolt hole, and column includes axial through-hole；Rest pad is hexahedron, hexahedron
Long axis direction it is parallel with the long axis direction of crossbeam；Rest pad is fixed, and the bottom of column is supported by rest pad at the top of the base,
It carries on a shoulder pole at the top of column the end of crossbeam；Bolt is from top to bottom successively across the bolt hole of crossbeam, the axially extending bore of column, bearing
The bolt hole of block and the bolt hole of pedestal, crossbeam, column, rest pad and pedestal are fixed together；Reinforced Concrete Model beam
End load rest pad inner end top.
2. test device according to claim 1, which is characterized in that support includes two block baffles and the fixed spiral shell of complex root
Bolt, two block baffles are arranged in rest pad front and rear sides, rest pad are clipped in the middle, and the height of baffle is higher than the height of rest pad；
Baffle and rest pad respectively include a plurality of lateral bolts hole, and fixing bolt passes through the baffle of rest pad and rest pad two sides, will
Baffle is fixed together with rest pad.
3. test device according to claim 1, which is characterized in that it includes top plate and two pieces that support, which includes screw, pedestal,
Tilt prop, top plate are supported by tilt prop；The bolt hole of pedestal is opened on top plate；The bottom surface of rest pad inner end includes threaded hole, bottom
The inner end of seat top plate includes screw hole, and screw passes through the screw hole of bottom plate, the threaded hole of rest pad screwed in, by rest pad and top plate
It is fixed together.
4. test device according to claim 1, which is characterized in that the bolt hole at the both ends of crossbeam is oblong aperture, prolate
The long axis direction in hole and the long axis direction of crossbeam are parallel.
5. test device according to claim 1, which is characterized in that loading head includes load bar, top plate and bottom plate and two pieces
Side plate, the top plate and bottom plate of loading head and two blocks of side plates constitute the sleeve of rectangle, and the sleeve of rectangle is covered in Reinforced Concrete Model beam
Middle part；The top of load bar and the middle part of bottom plate connect.
6. test device according to claim 1, which is characterized in that the bottom surface of loading head top plate include two it is parallel plus
Rib is carried, load rib is orthogonal with the long axis direction of Reinforced Concrete Model beam.
7. test device according to claim 5, which is characterized in that including loading device, loading device includes water tank, thick stick
Linkage and fill valvular water inlet pipe, the water outlet water flowing case of water inlet pipe；The input terminal of lever mechanism accepts water tank, Lever machine
The load bar of the output termination loading head of structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821368094.8U CN208818589U (en) | 2018-08-23 | 2018-08-23 | The test device of Reinforced Concrete Model beam anti-bending strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821368094.8U CN208818589U (en) | 2018-08-23 | 2018-08-23 | The test device of Reinforced Concrete Model beam anti-bending strength |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208818589U true CN208818589U (en) | 2019-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821368094.8U Expired - Fee Related CN208818589U (en) | 2018-08-23 | 2018-08-23 | The test device of Reinforced Concrete Model beam anti-bending strength |
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| CN (1) | CN208818589U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060554A (en) * | 2018-08-23 | 2018-12-21 | 深圳大学 | A kind of test device of Reinforced Concrete Model beam anti-bending strength |
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2018
- 2018-08-23 CN CN201821368094.8U patent/CN208818589U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060554A (en) * | 2018-08-23 | 2018-12-21 | 深圳大学 | A kind of test device of Reinforced Concrete Model beam anti-bending strength |
| CN109060554B (en) * | 2018-08-23 | 2023-11-14 | 深圳大学 | Testing device for bending resistance of reinforced concrete model beam |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190503 Termination date: 20210823 |
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| CF01 | Termination of patent right due to non-payment of annual fee |