CN207114077U - A kind of prestressing force measurement apparatus of large-diameter pipeline - Google Patents
A kind of prestressing force measurement apparatus of large-diameter pipeline Download PDFInfo
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- CN207114077U CN207114077U CN201720868012.5U CN201720868012U CN207114077U CN 207114077 U CN207114077 U CN 207114077U CN 201720868012 U CN201720868012 U CN 201720868012U CN 207114077 U CN207114077 U CN 207114077U
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- anchor
- cable
- hole
- prestress anchorage
- slab
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Abstract
The utility model discloses a kind of prestressing force measurement apparatus of large-diameter pipeline, including pipe of concrete to be measured, also include supporting body, paired prestress anchorage cable, strain gauge, the strain gauge is arranged in the supporting body and arranged along the Impact direction of the prestress anchorage cable, the supporting body is provided at both ends with anchor slab, lower anchor slab, the upper anchor slab is abreast leaned against on the pipe of concrete to be measured with the lower anchor slab, the prestress anchorage cable is wound on the pipe of concrete to be measured axially vertically, the prestress anchorage cable axially penetrates through the upper anchor slab along the pipe of concrete to be measured, the supporting body, the lower anchor slab.The utility model is simple in construction, it is ingenious in design, prestress anchorage cable or dowel interaction are anchored into the upper anchor slab at anchor dynamometer both ends, on lower anchor slab, solve the problem of taking root at anchor cable or dowel both ends, the prestressing force of large-diameter concrete prestressed pipe is measured so as to be realized with existing strain-type prestressed tendon anchorage dynamemter.
Description
Technical field
A kind of prestressing force measurement apparatus of large-diameter pipeline is the utility model is related to, belongs to measuring instrument technical field.
Background technology
The large-diameter pipeline used in diversion works, such as PCCP Prestressed concrete cylinder pipes, diameter are usually 3~4
Rice, length reaches dozens of kilometres, and in order to ensure the security of diversion works, the stress measurement work to pipeline is extremely important.But
There is presently no the prestressing force measurement apparatus specifically for large-diameter concrete prestressed pipe.
As depicted in figs. 1 and 2, current existing a kind of strain-type being widely used in the engineering reinforcement of rock and structure
Prestress anchorage cable, dowel dynamometer, for long term monitoring hydraulic structures and other concrete structures, rock slope, bridge
Etc. prestressed anchoring status, read the real-time measurement values of each branch strain transducer of dynamometer by measuring instrumentss and utilize instrument
Characterisitic parameter can calculate anchor cable pressure applied.
Strain-type prestress anchorage cable, the dowel dynamometer being widely used at present are passed through by one end of some anchor cables or dowel
Drill it is buried be anchored in the reinforcing engineering of Geotechnical Engineering or fabric structure, the other end is gathered into anchor beam and bound round in dynamometer
In ring-type supporting body and it is anchored on the anchor slab of supporting body rear end, should by the Impact direction of anchor cable or dowel arrangement in supporting body
Become meter, the stress in anchor cable or dowel is monitored using supporting body strain measurement.Existing this prestressed tendon anchorage dynamemter also without
Method directly uses the prestressing force measurement of large-diameter concrete prestressed pipe above.
Utility model content
Technical problem to be solved in the utility model is to apply to the principle of existing strain-type prestress anchorage cable dynamometry
The prestressing force measurement of large-diameter concrete prestressed pipe is above, there is provided a kind of dedicated for the mixed of large-diameter concrete prestressed pipe
Coagulate native pipe prestressing force measurement apparatus.
The utility model adopts the following technical scheme that：A kind of prestressing force measurement apparatus of large-diameter pipeline, including it is to be measured mixed
Solidifying soil pipe, it is characterised in that also including supporting body, paired prestress anchorage cable, strain gauge, the strain gauge is arranged at described hold
Arranged in carrier along the Impact direction of the prestress anchorage cable, the supporting body is provided at both ends with anchor slab, lower anchor slab, described
Upper anchor slab is abreast leaned against on the pipe of concrete to be measured with the lower anchor slab, and the prestress anchorage cable is wound on institute axially vertically
State on pipe of concrete to be measured, the prestress anchorage cable axially penetrates through the upper anchor slab, described held along the pipe of concrete to be measured
Carrier, the lower anchor slab.
As a kind of preferred embodiment, with dividing on the cross section boundary line of pipe of concrete to be measured on upper anchor slab and lower anchor slab
Be not provided with it is some walk hole, anchor hole, intermediate plate, the both ends of prestress anchorage cable alternatively walking through upper anchor slab and lower anchor slab
Hole and supporting body are simultaneously anchored in the anchor hole of upper anchor slab and lower anchor slab by intermediate plate, are walked hole and are interlocked with anchor hole in symmetrical
Arrangement.
As a kind of preferred embodiment, the outer surface nesting of intermediate plate is arranged in anchor hole, and the inner surface of intermediate plate is nested
It is provided with prestress anchorage cable.
As a kind of preferred embodiment, a pair of prestress anchorage cable, prestress anchorage cable includes the first prestress anchorage cable, the
Two prestress anchorage cables, walk hole one is walked in hole including the first anchor cable, the second anchor cable walks hole one, the first anchor cable walks hole two,
Two anchor cables walk hole two, anchor hole include the first anchor cable solid hole one, the first anchor cable solid hole two, the second anchor cable solid hole one,
The second anchor cable solid hole two, the first prestress anchorage cable, the both ends of the second prestress anchorage cable are alternatively through upper anchor slab, lower anchor slab
First anchor cable walks hole one, the second anchor cable walks hole one, the first anchor cable walks hole two, the second anchor cable walks hole two and supporting body
And lower anchor slab, the first anchor cable solid hole one on upper anchor slab, the first anchor cable solid hole two, the second anchor cable are anchored at by intermediate plate
In solid hole one, the second anchor cable solid hole two.
As a kind of preferred embodiment, the first anchor cable walks hole one, the second anchor cable walks hole one, the first anchor cable solid hole
2nd, the second anchor cable solid hole two is arranged on anchor slab, and the first anchor cable walks hole two, the second anchor cable walks hole two, the first anchor cable
Anchor hole one, the second anchor cable solid hole one are arranged on lower anchor slab.
As a kind of preferred embodiment, prestress anchorage cable for pair, what prestress anchorage cable included being distributed in pairs first in advance should
Power anchor cable and the second prestress anchorage cable, the 3rd prestress anchorage cable being distributed in pairs and the 4th prestress anchorage cable, be distributed in pairs
Five prestress anchorage cables and the 6th prestress anchorage cable, the first prestress anchorage cable, the second prestress anchorage cable, the 3rd prestress anchorage cable,
Four prestress anchorage cables, the 5th prestress anchorage cable, both ends alternatively the wearing through upper anchor slab and lower anchor slab of the 6th prestress anchorage cable
Row hole and supporting body are simultaneously anchored in the anchor hole of upper anchor slab and lower anchor slab by intermediate plate.
As a kind of preferred embodiment, supporting body is rectangular ring body.
The beneficial effect that the utility model is reached：1）The utility model can guarantee that the integrality of large-diameter pipeline, safety
Reliably：Prestressing force measurement apparatus will not be made without the pre-buried anchor bar cable wire of drilling deep hole on pipeline to large-diameter pipeline surface
Into destruction, the intensity and safety of large-diameter pipeline are also ensure that while meeting and measuring needs；2）The utility model can be effective
Stress variation is measured, the measured value degree of accuracy is high：There is presently no the measurement of the prestressing force specifically for large-diameter concrete prestressed pipe
Device, the utility model of the device have filled up blank, and cable wire or reinforcing bar both ends are each attached to pre- answer by the prestressing force measurement apparatus
On force measuring device, ensure that in measurement process to be not in because reinforcing bar or cable wire are because pre-buried insecure or anchoring basic point is with advance should
Reinforcing bar caused by relative slip between force measuring device etc. or cable wire loosen, and can not carry out pre- tensioning or can not obtain accurately
The phenomenon of measured value, the measured value of prestressing force measurement apparatus depend entirely on the stress variation of tensioning cable wire or reinforcing bar；3）This practicality is new
Type is easy for installation, easy to operate, and speed of application is fast：The prestressing force measurement apparatus only needs cable wire reinforcing bar is cylindrical in large-diameter pipeline
It is fixed on after passing through corresponding hole position after winding with one circuit in prestressing force measurement apparatus, and reinforcing bar or the cable wire other end fill through measurement
Pre- tensioning greatly reduces the difficulty of site operation, can effectively carried to fixation after the stress needed after the corresponding hole position put
The speed of height construction；4）The utility model is simple in construction, and input cost is relatively low, better economy：The prestressing force measurement apparatus group
Into prestressed tendon anchorage dynamemter, both sides anchor plate, dowel or anchor cable is only included, it is embedded into without processing pre-buried solid inside ground
Determine the parts such as device, support pedestal, and the civil engineering that cost free is high, therefore, make and installation is simple, cost is relatively low, warp
Ji property is good；5）The utility model strong adaptability：The device is suitable for the pipeline of all size diameter, the prestressing force of buildings is surveyed
Amount, and the place that can preferably select to be easy to construction by pipeline is installed to be required without definite to the position of measurement.
Brief description of the drawings
Fig. 1 is the theory of constitution schematic diagram of existing anchor dynamometer.
Fig. 2 is the installation principle schematic of existing anchor dynamometer.
Fig. 3 is the structural representation of the cross section of first embodiment of the present utility model.
Fig. 4 is the structural representation of the top view of second embodiment of the present utility model.
The implication marked in figure：1- pipe of concretes to be measured, 2- prestress anchorage cables, the upper anchor slabs of 3-, anchor slab under 4-, 5- carryings
Body, 6- strain gauges, 7- intermediate plates, the prestress anchorage cables of 21- first, the prestress anchorage cables of 22- second, the prestress anchorage cables of 23- the 3rd, 24-
4th prestress anchorage cable, the prestress anchorage cables of 25- the 5th, the prestress anchorage cables of 26- the 6th, the anchor cables of 31- first walk hole one, 32-
One anchor cable solid hole two, the anchor cables of 33- second walk hole one, the second anchor cables of 34- solid hole two, the first anchor cables of 41- solid hole one,
The anchor cables of 42- first walk hole two, and the second anchor cables of 43- solid hole one, the anchor cables of 44- second walk hole two.
Embodiment
The utility model is further described below in conjunction with the accompanying drawings.Following examples are only used for clearly illustrating this
The technical scheme of utility model, and the scope of protection of the utility model can not be limited with this.
The utility model adopts the following technical scheme that：A kind of prestressing force measurement apparatus of large-diameter pipeline, including it is to be measured mixed
Coagulate native pipe 1, it is characterised in that be also arranged at carrying including supporting body 5, paired prestress anchorage cable 2, strain gauge 6, strain gauge 6
Arranged in body 5 along the Impact direction of prestress anchorage cable 2, supporting body 5 is provided at both ends with anchor slab 3, lower anchor slab 4, upper anchor slab 3 with
Lower anchor slab 4 is abreast leaned against on pipe of concrete 1 to be measured, and prestress anchorage cable 2 is wound on pipe of concrete 1 to be measured axially vertically, in advance
Stress anchor cable 2 axially penetrates through upper anchor slab 3, supporting body 5, lower anchor slab 4 along pipe of concrete 1 to be measured, and supporting body 5 wales prestressed anchor
Rope 2.
As a kind of preferred embodiment, the cross section boundary line on upper anchor slab 3 and lower anchor slab 4 with pipe of concrete 1 to be measured
On be respectively arranged with it is some walk hole, anchor hole, intermediate plate 7, the both ends of prestress anchorage cable 2 alternatively through upper anchor slab 3 and are casted anchor
Walking hole and supporting body 5 and being anchored at by intermediate plate 7 in the anchor hole of upper anchor slab 3 and lower anchor slab 4 for plate 4, walks hole and anchor
Solid hole is in symmetrically to be staggered.
As a kind of preferred embodiment, the outer surface nesting of intermediate plate 7 is arranged in anchor hole, and the inner surface of intermediate plate 7 is embedding
Set is provided with prestress anchorage cable 2.
Fig. 3 is the structural representation of the cross section of first embodiment of the present utility model.As a kind of preferred embodiment,
Prestress anchorage cable 2 is a pair, and prestress anchorage cable 2 includes the first prestress anchorage cable 21, the second prestress anchorage cable 22, and walking hole includes
First anchor cable walks hole 1, the second anchor cable walks hole 1, the first anchor cable walks hole 2 42, the second anchor cable walks hole 2 44,
Anchor hole includes the first anchor cable solid hole 1, the first anchor cable solid hole 2 32, the second anchor cable solid hole 1, the second anchor cable
Solid hole 2 34, the first prestress anchorage cable 21, the second prestress anchorage cable 22 both ends alternatively through upper anchor slab 3, lower anchor slab 4 the
One anchor cable walks hole 1, the second anchor cable walks hole 1, the first anchor cable walks hole 2 42, the second anchor cable walks hole 2 44 and
Supporting body 5 is simultaneously anchored at lower anchor slab 4, the first anchor cable solid hole 1 on upper anchor slab 3, the first anchor cable solid hole by intermediate plate 7
In 2 32, second anchor cable solid hole 1, the second anchor cable solid hole 2 34.
As a kind of preferred embodiment, the first anchor cable walks hole 1, the second anchor cable walks hole 1, the first anchor cable
Solid hole 2 32, the second anchor cable solid hole 2 34 are arranged on anchor slab 3, and the first anchor cable walks hole 2 42, the second anchor cable walks hole
2 44, first anchor cable solid hole 1, the second anchor cable solid hole 1 are arranged on lower anchor slab 4.
Fig. 4 is the structural representation of the top view of second embodiment of the present utility model.Lower anchor slab is not drawn into Fig. 4,
As a kind of preferred embodiment, prestress anchorage cable 2 is 3 pairs, and prestress anchorage cable 2 includes the first prestress anchorage cable being distributed in pairs
21 and second prestress anchorage cable 22, the 3rd prestress anchorage cable 23 that is distributed in pairs and the 4th prestress anchorage cable 24, it is distributed in pairs
5th prestress anchorage cable 25 and the 6th prestress anchorage cable 26, the first prestress anchorage cable 21, the second prestress anchorage cable the 22, the 3rd in advance should
Power anchor cable 23, the 4th prestress anchorage cable 24, the 5th prestress anchorage cable 25, the both ends of the 6th prestress anchorage cable 26 are alternatively through upper
Anchor slab 3 and lower anchor slab 4 are walked hole and supporting body 5 and are anchored at by intermediate plate 7 in the anchor hole of upper anchor slab 3 and lower anchor slab 4.
For the balance of preferably confining force, as a kind of preferred embodiment, more than one pair of paired prestressed anchor
Rope on upper anchor slab 3 and lower anchor slab walk hole, anchor hole is staggered.
Anchor cable of the present utility model may be replaced by dowel.
Stress distribution amount according to prestress anchorage cable 2 is not a circle but a rectangle, in order to ensure the accurate of measurement
Degree, as a kind of preferred embodiment, supporting body 5 is rectangular ring body.
The utility model is simple in construction, ingenious in design, and prestress anchorage cable or dowel interaction are anchored into anchor dynamometer two
The upper anchor slab at end, on lower anchor slab, solves the problem of taking root at anchor cable or dowel both ends, so as to pre- with existing strain-type
Stress anchor dynamometer, which is realized, to be measured the prestressing force of large-diameter concrete prestressed pipe.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model technical principle is not departed from, some improvement and deformation can also be made, these change
Enter and deform and also should be regarded as the scope of protection of the utility model.
Claims (7)
1. a kind of prestressing force measurement apparatus of large-diameter pipeline, including pipe of concrete to be measured（1）, it is characterised in that also include holding
Carrier（5）, paired prestress anchorage cable（2）, strain gauge（6）, the strain gauge（6）It is arranged at the supporting body（5）It is middle along institute
State prestress anchorage cable（2）Impact direction arrangement, the supporting body（5）Be provided at both ends with anchor slab（3）, lower anchor slab（4）, institute
State anchor slab（3）With the lower anchor slab（4）Abreast lean against the pipe of concrete to be measured（1）On, the prestress anchorage cable（2）Axle
To being vertically wound on the pipe of concrete to be measured（1）On, the prestress anchorage cable（2）Along the pipe of concrete to be measured（1）Axle
To through the upper anchor slab（3）, the supporting body（5）, the lower anchor slab（4）.
A kind of 2. prestressing force measurement apparatus of large-diameter pipeline according to claim 1, it is characterised in that the upper anchor slab
（3）With the lower anchor slab（4）The upper and pipe of concrete to be measured（1）Cross section boundary line on be respectively arranged with some walk
Hole, anchor hole, intermediate plate（7）, the prestress anchorage cable（2）Both ends alternatively pass through the upper anchor slab（3）With the lower anchor slab
（4）Described walk hole and the supporting body（5）And pass through the intermediate plate（7）It is anchored at the upper anchor slab（3）Under described
Anchor slab（4）The anchor hole in, hole and the anchor hole of walking is in being symmetrically staggered.
A kind of 3. prestressing force measurement apparatus of large-diameter pipeline according to claim 2, it is characterised in that the intermediate plate
（7）Outer surface nesting be arranged in the anchor hole, the intermediate plate（7）Inner surface nesting be provided with the prestress anchorage cable
（2）.
A kind of 4. prestressing force measurement apparatus of large-diameter pipeline according to claim 2, it is characterised in that the prestressing force
Anchor cable（2）For a pair, the prestress anchorage cable（2）Including the first prestress anchorage cable（21）, the second prestress anchorage cable（22）, it is described
Walk hole and walk hole one including the first anchor cable（31）, the second anchor cable walk hole one（33）, the first anchor cable walk hole two（42）, second
Anchor cable walks hole two（44）, the anchor hole includes the first anchor cable solid hole one（41）, the first anchor cable solid hole two（32）, second
Anchor cable solid hole one（43）, the second anchor cable solid hole two（34）, first prestress anchorage cable（21）, second prestressed anchor
Rope（22）Both ends alternatively pass through the upper anchor slab（3）, the lower anchor slab（4）First anchor cable walk hole one（31）、
Second anchor cable walks hole one（33）, first anchor cable walk hole two（42）, second anchor cable walk hole two（44）With
And the supporting body（5）And pass through the intermediate plate（7）It is anchored at the lower anchor slab（4）, the upper anchor slab（3）On described first
Anchor cable solid hole one（41）, the first anchor cable solid hole two（32）, the second anchor cable solid hole one（43）, second anchor
Rope anchor hole two（34）In.
A kind of 5. prestressing force measurement apparatus of large-diameter pipeline according to claim 4, it is characterised in that first anchor
Rope walks hole one（31）, second anchor cable walk hole one（33）, the first anchor cable solid hole two（32）, second anchor cable
Anchor hole two（34）It is arranged at the upper anchor slab（3）On, first anchor cable walks hole two（42）, second anchor cable walk hole
Two（44）, the first anchor cable solid hole one（41）, the second anchor cable solid hole one（43）It is arranged at the lower anchor slab（4）
On.
A kind of 6. prestressing force measurement apparatus of large-diameter pipeline according to claim 2, it is characterised in that the prestressing force
Anchor cable（2）For 3 pairs, the prestress anchorage cable（2）Including the first prestress anchorage cable being distributed in pairs（21）With the second prestressed anchor
Rope（22）, the 3rd prestress anchorage cable that is distributed in pairs（23）With the 4th prestress anchorage cable（24）, the 5th prestressing force that is distributed in pairs
Anchor cable（25）With the 6th prestress anchorage cable（26）, first prestress anchorage cable（21）, second prestress anchorage cable（22）, institute
State the 3rd prestress anchorage cable（23）, the 4th prestress anchorage cable（24）, the 5th prestress anchorage cable（25）, it is the described 6th pre-
Stress anchor cable（26）Both ends alternatively pass through the upper anchor slab（3）With the lower anchor slab（4）The hole and described walked
Supporting body（5）And pass through the intermediate plate（7）It is anchored at the upper anchor slab（3）With the lower anchor slab（4）The anchor hole in.
A kind of 7. prestressing force measurement apparatus of large-diameter pipeline according to claim 1, it is characterised in that the supporting body
（5）For rectangular ring body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720868012.5U CN207114077U (en) | 2017-07-18 | 2017-07-18 | A kind of prestressing force measurement apparatus of large-diameter pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720868012.5U CN207114077U (en) | 2017-07-18 | 2017-07-18 | A kind of prestressing force measurement apparatus of large-diameter pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207114077U true CN207114077U (en) | 2018-03-16 |
Family
ID=61584474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720868012.5U Active CN207114077U (en) | 2017-07-18 | 2017-07-18 | A kind of prestressing force measurement apparatus of large-diameter pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207114077U (en) |
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2017
- 2017-07-18 CN CN201720868012.5U patent/CN207114077U/en active Active
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