CN209568718U - A kind of prestressed bringing device of I-beam - Google Patents
A kind of prestressed bringing device of I-beam Download PDFInfo
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- CN209568718U CN209568718U CN201822127303.6U CN201822127303U CN209568718U CN 209568718 U CN209568718 U CN 209568718U CN 201822127303 U CN201822127303 U CN 201822127303U CN 209568718 U CN209568718 U CN 209568718U
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- strand wires
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Abstract
The utility model discloses a kind of prestressed bringing devices of I-beam, feature be include the two-way tension mechanism being arranged in two side wing edge of I-beam, steel strand wires and lower steel strand wires are provided in every side wing edge of I-beam, both ends corresponding with I-beam are fixedly connected respectively at the both ends of upper steel strand wires and lower steel strand wires, two-way tension mechanism includes upper bush, lower sleeve, connector sleeve, upper pulling block, lower drawing block and bracket, bracket is fixed on vertically between the upper lower flange of I-beam, upper bush and lower sleeve are set on bracket vertically, the upper screw thread bolt of upper pulling block and upper bush, the lower screw thread bolt of lower drawing block and lower sleeve, upper steel strand wires are connected with upper pulling block, lower steel strand wires are connected with lower drawing block, self-locking mechanism is provided on upper bush and lower sleeve, connector sleeve is for connecting upper bush and lower sleeve；Advantage is the prestress application device using flexible, and anti-seismic performance is good, and can be applied to different use occasions.
Description
Technical field
The utility model relates to the prestressed stretch-draw of I-beam in field of civil engineering more particularly to bamboo and woods, the combination of steel bamboo
Or the prestressed bringing device of steel and wood composite I-beam.
Background technique
The pre-stress stretching method of bamboo and wood beam mainly has pre-bending method, wears a stretching method, end string method, web member at this stage
Elongation method etc., these methods are although effective, but there is also some problems.Pre-bending method construction technology is simple, but wooden frame is anti-
During arch restores, it is established that the prestressing force come is slightly smaller compared with being applied directly to the prestressing force on wooden frame, larger in needs
It can not be used in prestressed engineering, meanwhile, pre-bending method needs the higher adhesive of intensity.A stretching method is worn to deformed bar
Linear requirements it is higher, using there are certain difficulty when bar diameter is larger, and the office of beam-ends and reinforcing bar inflection point position pressure is asked
Topic also limits the popularization that a method is worn in punching.And combination knot can be formed by applying prestressed bamboo and wood beam by end string method
Structure, appearance is preferable, but is restricted by shearing resistance at end office pressure and idler wheel, and applying prestressing force size will receive limitation.Web member elongation
Method generates upward concentrated force at web member, so that prestressed application effect is preferable, but this increases the depth of section of beam
Greatly, limitation is caused to structure available space.
Summary of the invention
The technical problem to be solved by the utility model is to provide one kind not to increase depth of beam and use space, and answers in advance
The prestressed bringing device of the I-beam that power is adjustable, versatility is good, anti-seismic performance is good.
Technical solution adopted by the utility model to solve the above technical problems is as follows: a kind of prestressed application dress of I-beam
It sets, including the two-way tension mechanism being arranged in two side wing edge of I-beam, steel strand is provided in every side wing edge of I-beam
Company is fixed at both ends corresponding with I-beam respectively at the both ends of line and lower steel strand wires, the upper steel strand wires and the lower steel strand wires
It connects, the two-way tension mechanism includes upper bush, lower sleeve, connector sleeve, upper pulling block, lower drawing block and bracket, the bracket
It is fixed between the upper lower flange of I-beam vertically, the upper bush and the lower sleeve are set in the bracket vertically
On, it is provided with screw thread on the upper bush, is provided with lower screw thread on the lower sleeve, the upper screw thread and described
Oppositely oriented, the upper screw thread bolt of the upper pulling block and the upper bush of lower screw thread, the lower drawing block with it is described
Lower sleeve lower screw thread bolt, the upper steel strand wires are connected with the upper pulling block, the lower steel strand wires and institute
The lower drawing block stated is connected, and self-locking mechanism is provided on the upper bush and the lower sleeve, and the connection is applied
In the connection upper bush and the lower sleeve.
Further, the bracket includes upper plate, lower plate and support shaft, the upper plate and the bottom
Plate is separately fixed at the upper and lower side of the support shaft, and the top flange of the upper plate and I-beam is bolted company
It connects, the lower flange of the lower plate and I-beam is bolted to connection, and the upper bush and the lower sleeve are equal
It is coaxially set in the support shaft and is rotatably assorted with the support shaft by bearing.
Further, the lower end surface of the upper pulling block is provided with card slot, and the upper steel strand wires are stuck in described upper
In card slot, the upper surface of the lower drawing block is provided with lower bayonet slot, and the lower steel strand wires are stuck in the lower bayonet slot.
Further, the self-locking mechanism be self-locking nut, the self-locking nut accordingly with the upper bush
Upper screw thread, the lower sleeve lower screw thread bolt.
Further, the lower part of the upper bush and the top of the lower sleeve are hexagon polished rod, described
The shape of connector sleeve and matching and covering on hexagon polished rod for hexagon polished rod, the connector sleeve is by left side and right half
Portion forms, and is provided with card slot on the left side, and fixture block has been wholely set on the right side, and the fixture block is inserted into institute
Fix the left side mutually with the right side；It just can be rotated upper bush by spanner etc., trap
Cylinder or connector sleeve, and conveniently exert a force to it.
Further, the two-way tension mechanism is located at the medium position of I-beam.
Further, the both ends of I-beam are fixedly installed connecting plate, the upper steel strand wires and the lower steel respectively
The connecting plate at the both ends of twisted wire corresponding end respectively is fixedly connected.
Further, the prestressed bringing device of the I-beam is additionally provided with sleeve rotating drive mechanism, described
Sleeve rotating drive mechanism includes wirerope and motor, one end end of the wirerope and the upper bush or described
Lower sleeve or the connector sleeve are fixedly connected, and the wire rope roll be wound on the upper bush or the lower sleeve or
On the connector sleeve, spool, the other end volume of the wirerope are coaxially fixedly installed in the drive shaft of the motor
It is wound on the spool；Upper bush, lower sleeve or connector sleeve rotation can be driven by motor, realizes the pre- of upper and lower steel strand wires
Stress tension is time saving and energy saving.
Compared with prior art, the utility model has the advantages that:
(1), it due to being provided with two-way tension mechanism in two side wing edge of I-beam, and is respectively provided in every side wing edge of I-beam
There are the upper steel strand wires being connected with two-way tension mechanism and lower steel strand wires, two-way tension caused by I-beam can not only be supported
The deformation of antigravity load action underbeam, moreover it is possible to resist I-beam institute under the horizontal loads such as earthquake load and wind load
The moment of flexure and shearing being subject to, so that the good seismic performance of structure.
(2), since connector sleeve is for connecting upper bush and lower sleeve, and the lower screw thread of the upper screw thread of upper bush and lower sleeve
It is oppositely oriented, rotation connection set can drive pulling block and lower drawing block relative motion simultaneously, while realize upper steel strand wires and lower steel
The prestressed stretch-draw of twisted wire improves tensioning efficiency, and prestressing force is adjustable, and the power that upper and lower steel strand wires generate is equal in magnitude,
Vertical load it is contrary；And remove connector sleeve, and upper bush and lower sleeve can be rotated respectively, so that upper and lower steel strand wires mention
The prestressing force of confession is of different sizes, and the prestressing force that the vertical load difference that I-beam is born generates can participate in bending resistance, this makes this
Prestress application device using flexible, can be applied to different use occasions.
(3), due to being provided with self-locking mechanism on upper bush and lower sleeve, when two-way tension mechanism is completed to upper and lower steel
After the prestressed stretch-draw of twisted wire, self-locking nut is threaded to the top of upper bush and the bottom of lower sleeve respectively, makes self-locking spiral shell
Mother stock do not offset with upper plate, lower plate, it can be achieved that two-way tension mechanism it is self-locking, prevent upper and lower steel strand wires from restoring.
(4), since two-way tension mechanism is arranged in two side wing edges of I-beam, the structure for taking full advantage of I-beam is empty
Between, do not increase I-shaped depth of beam and use space, simultaneously as the upper lower flange of bracket and I-beam is bolted company
It connects, adds somewhat to the rigidity of I-beam.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the utility model in a tensioned state；
Fig. 3 is the structural schematic diagram of the two-way tension mechanism of the utility model；
Fig. 4 is the decomposition diagram of the upper bush of the utility model, lower sleeve and connector sleeve.
Specific embodiment
The utility model is described in further detail below in conjunction with figure embodiment.
As shown, a kind of prestressed bringing device of I-beam, two-way in 1 liang of side wing edge of I-beam including being arranged in
Tensile machine, two-way tension mechanism are located at the medium position of I-beam 1, and steel strand is provided in every side wing edge of I-beam 1
Line 2 and lower steel strand wires 3, the both ends of I-beam 1 are fixedly installed connecting plate 4, the both ends of upper steel strand wires 2 and lower steel strand wires 3 respectively
The connecting plate 4 at corresponding end is fixedly connected respectively, two-way tension mechanism include upper bush 51, lower sleeve 52, connector sleeve 53, on
Pulling block 6, lower drawing block 7 and bracket 8, bracket 8 include upper plate 81, lower plate 82 and support shaft 83, upper plate 81 and lower plate 82
It is separately fixed at the upper and lower side of support shaft 83, upper plate 81 and the top flange of I-beam 1 are bolted to connection, lower plate 82
Be bolted to connection with the lower flange of I-beam 1, upper bush 51 and lower sleeve 52 be coaxially set in support shaft 83 and
It is rotatably assorted with support shaft 83 by bearing, screw thread 54 is provided on upper bush 51, lower screw thread 55 is provided on lower sleeve 52,
Upper screw thread 54 is oppositely oriented with lower screw thread 55,54 bolt of upper screw thread of upper pulling block 6 and upper bush 51, lower drawing block 7 with trap
55 bolt of lower screw thread of cylinder 52, the lower end surface of upper pulling block 6 are provided with card slot 61, and upper steel strand wires 2 are stuck in card slot 61, under
The upper surface of pulling block 7 is provided with lower bayonet slot 71, and lower steel strand wires 3 are stuck in lower bayonet slot 71, is all provided on upper bush 51 and lower sleeve 52
Be equipped with self-locking mechanism, self-locking mechanism is self-locking nut 9, self-locking nut 9 accordingly with the upper screw thread 54 of upper bush 51, lower sleeve 52
55 bolt of lower screw thread, the lower part of upper bush 51 and the top of lower sleeve 52 are hexagon polished rod, the shape of connector sleeve 53
Match and cover on hexagon polished rod with hexagon polished rod, connector sleeve 53 is made of left side 531 and right side 532, left
It is provided with card slot 533 in half portion 531, fixture block 534 has been wholely set on right side 532, fixture block 534, which is inserted into card slot 533, to be made
Left side 531 is fixed with 532 phase of right side.
In above-described embodiment, also settable sleeve rotating drive mechanism, sleeve rotating drive mechanism includes wirerope and electricity
One end end of machine, wirerope is fixedly connected with upper bush 51 or lower sleeve 52 or connector sleeve 53, and wire rope roll is wound on set
On cylinder 51 or lower sleeve 52 or connector sleeve 53, spool, the other end volume of wirerope are coaxially fixedly installed in the drive shaft of motor
It is wound on spool, upper bush 51, lower sleeve 52 or connector sleeve 53 can be driven to rotate by motor, realize the pre- of upper and lower steel strand wires
Stress tension is time saving and energy saving.
Claims (8)
1. a kind of prestressed bringing device of I-beam, it is characterised in that including the two-way drawing being arranged in two side wing edge of I-beam
Force mechanisms, are provided with steel strand wires and lower steel strand wires in every side wing edge of I-beam, the upper steel strand wires and it is described under
Both ends corresponding with I-beam are fixedly connected respectively at the both ends of steel strand wires, and the two-way tension mechanism includes upper bush, traps
Cylinder, connector sleeve, upper pulling block, lower drawing block and bracket, the bracket is fixed on vertically between the upper lower flange of I-beam, described
Upper bush and the lower sleeve are set in vertically on the bracket, and screw thread is provided on the upper bush, described
Lower screw thread is provided on lower sleeve, the upper screw thread is oppositely oriented with the lower screw thread, the upper pulling block with it is described
Upper bush upper screw thread bolt, the lower screw thread bolt of the lower drawing block and the lower sleeve, the upper steel twists
Line is connected with the upper pulling block, and the lower steel strand wires are connected with the lower drawing block, the upper bush and described
Lower sleeve on be provided with self-locking mechanism, the connector sleeve is used to connect the upper bush and the lower sleeve.
2. a kind of prestressed bringing device of I-beam as described in claim 1, it is characterised in that: the bracket includes upper
Bottom plate, lower plate and support shaft, the upper plate and the lower plate are separately fixed at the upper and lower side of the support shaft,
The top flange of the upper plate and I-beam is bolted to connection, and the lower flange of the lower plate and I-beam passes through
Bolt is fixedly connected, the upper bush and the lower sleeve be coaxially set in the support shaft and with the branch
Support axis is rotatably assorted by bearing.
3. a kind of prestressed bringing device of I-beam as described in claim 1, it is characterised in that: under the upper pulling block
End face is provided with card slot, and the upper steel strand wires are stuck in the upper card slot, and the upper surface of the lower drawing block is provided with
Lower bayonet slot, the lower steel strand wires are stuck in the lower bayonet slot.
4. a kind of prestressed bringing device of I-beam as described in claim 1, it is characterised in that: the self-locking mechanism is
Self-locking nut, the self-locking nut accordingly lower screw thread phase spiral shell with the upper screw thread of the upper bush, the lower sleeve
It connects.
5. a kind of prestressed bringing device of I-beam as described in claim 1, it is characterised in that: under the upper bush
Portion and the top of the lower sleeve are hexagon polished rod, the shape of the connector sleeve and hexagon polished rod match and
It covers on hexagon polished rod, the connector sleeve is made of left side and right side, and card slot, institute are provided on the left side
It has been wholely set fixture block on the right side stated, the left side and described is made in the fixture block insertion card slot
Right side is mutually fixed.
6. a kind of prestressed bringing device of I-beam as described in claim 1, it is characterised in that: the two-way tension machine
Structure is located at the medium position of I-beam.
7. a kind of prestressed bringing device of I-beam as described in claim 1, it is characterised in that: distinguish at the both ends of I-beam
It is fixedly installed connecting plate, the connecting plate that corresponding end is distinguished at the both ends of the upper steel strand wires and the lower steel strand wires is solid
Fixed connection.
8. a kind of prestressed bringing device of I-beam as described in claim 1, it is characterised in that: be additionally provided with sleeve rotation
Driving mechanism, the sleeve rotating drive mechanism include wirerope and motor, one end end of the wirerope with it is described
Upper bush or the lower sleeve or the connector sleeve be fixedly connected, and the wire rope roll is wound on the upper bush
Or on the lower sleeve or the connector sleeve, spool is coaxially fixedly installed in the drive shaft of the motor, it is described
The other end of wirerope is on the spool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822127303.6U CN209568718U (en) | 2018-12-18 | 2018-12-18 | A kind of prestressed bringing device of I-beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822127303.6U CN209568718U (en) | 2018-12-18 | 2018-12-18 | A kind of prestressed bringing device of I-beam |
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| Publication Number | Publication Date |
|---|---|
| CN209568718U true CN209568718U (en) | 2019-11-01 |
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ID=68330414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822127303.6U Active CN209568718U (en) | 2018-12-18 | 2018-12-18 | A kind of prestressed bringing device of I-beam |
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| Country | Link |
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| CN (1) | CN209568718U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441122A (en) * | 2018-12-18 | 2019-03-08 | 宁波大学 | A kind of prestressed bringing device of I-beam |
-
2018
- 2018-12-18 CN CN201822127303.6U patent/CN209568718U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441122A (en) * | 2018-12-18 | 2019-03-08 | 宁波大学 | A kind of prestressed bringing device of I-beam |
| CN109441122B (en) * | 2018-12-18 | 2023-10-31 | 宁波大学 | I-beam prestress application device |
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