CN210636821U - External prestress anti-cracking measure for basement exterior wall - Google Patents
External prestress anti-cracking measure for basement exterior wall Download PDFInfo
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- CN210636821U CN210636821U CN201920829416.2U CN201920829416U CN210636821U CN 210636821 U CN210636821 U CN 210636821U CN 201920829416 U CN201920829416 U CN 201920829416U CN 210636821 U CN210636821 U CN 210636821U
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Abstract
The utility model provides an anti measure of splitting of external prestressing force of basement outer wall, it relates to basement design construction field, aims at solving the problem that anti measure of splitting of basement outer wall was arranged in a flexible way. The concrete outer wall and the frame columns are integrally poured, the concrete outer wall can be segmented when the length is too long according to the required length, one part of the prestressed tendon penetrates through the frame columns, the other part of the prestressed tendon is exposed between the adjacent frame columns, and the end part of the prestressed tendon is fixed by the anchorage. By the construction mode, the construction period can be shortened, and the bending moment of the outer wall is reduced so as to achieve the anti-cracking effect.
Description
Technical Field
The utility model relates to a basement design construction field, concretely relates to anti measure of splitting of external prestressing force of basement outer wall.
Background
In the prior art, the basement outer wall cracks due to concrete shrinkage and thermal expansion and cold contraction, and the conventional solution is to add prestressed ribs in the outer wall to form compressive stress in the wall to offset tensile stress formed by shrinkage and thermal expansion, so that the effect of preventing the wall from cracking can be achieved. At this time, the construction period is affected by the simultaneous prestress construction and wall construction. The construction pertinence is not strong, and the construction period is delayed.
SUMMERY OF THE UTILITY MODEL
The utility model provides an anti measure of splitting of external prestressing force of basement outer wall to solve the anti measure of splitting of basement outer wall that prior art exists and arrange inflexible problem.
In order to solve the technical problem, the utility model provides an anti measure of splitting of external prestressing force of basement outer wall, including concrete outer wall, frame post, prestressing tendons, ground tackle, concrete outer wall and frame post become an organic whole and pour and decide concrete outer wall segmentable system according to required length, prestressing tendons partly wears to establish in the frame post another part and exposes between adjacent frame post, prestressing tendons is fixed with ground tackle for the tip.
Preferably, a pre-formed hole is formed in the position 1/3 high in the middle of the frame column, and the frame column and the concrete outer wall are integrally cast and formed.
Preferably, the anchorage device is positioned at the end part of the prestressed tendon and has a certain working distance with the outer wall body, and a steel base plate is arranged between the anchorage device and the frame column.
Preferably, the steel frame further comprises finish-rolled steel threaded couplers, and the finish-rolled steel threaded couplers are positioned between adjacent frame columns to connect the prestressed tendons into a whole.
Preferably, the concrete outer wall is cast in sections, and a gap is reserved when the concrete outer wall is cast into a whole, the prestressed tendons are fixed firstly, and then the gap is blocked.
The utility model discloses the beneficial effect who brings:
(1) the utility model can reduce the crack width of the concrete outer wall, is flexible in arrangement and saves the manufacturing cost;
(2) the utility model applies prestress in the outer frame column, can construct the prestress part after the construction of the basement main body structure is completed, and can cancel the construction of the prestress part if the concrete outer wall does not crack during the construction and use, and can also be used as one of the later reinforcing measures;
(3) the utility model discloses, do not influence the construction cycle of basement, can improve the atress condition of outer wall, exert the prestressing force after, effectively reduced the moment of flexure of outer wall.
Drawings
FIG. 1 is an overall view of the construction of the anti-crack measure of the outer wall body according to the present invention;
fig. 2 is a structural view of one side tension end of the frame post according to the present invention;
FIG. 3 is a schematic view of a finish rolled deformed steel bar connector according to the present invention;
wherein, the concrete external wall is 1, the frame column is 2, the prestressed tendon is 3, the steel base plate is 4, the hole is formed in advance is 5, the anchorage device is 6, and the finish rolling screw-thread steel coupler is 7.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to specific embodiments.
As shown in fig. 1-3, the utility model discloses the implementation provides a basement outer wall external prestressing force anti-cracking measure, including concrete outer wall 1, frame post 2, prestressing tendons 3, ground tackle 6, concrete outer wall 1 and frame post 2 are built as an organic whole and are decided according to required length, and concrete outer wall 1 can be made by stage, and construction time has been shortened in convenient construction, prestressing tendons 3 partly wears to establish in frame post 2 another part exposes between adjacent frame post 2, prestressing tendons 3 for the tip ground tackle fixed.
Furthermore, a pre-formed hole 5 is arranged at the position 1/3 of the middle of the frame column 2, during construction, a PVC or metal corrugated pipe hole is pre-embedded in the middle 1/3 of the outer wall frame column, the pre-formed hole 5 is used for placing the prestressed ribs 3, tensile stress borne by the position is uniform and is beneficial to bearing the compressive stress of the outer wall, the frame column 2 and the concrete outer wall 1 are integrally cast, and cost and time are saved through the construction method.
Furthermore, anchorage device 6 is located the tip of prestressing tendons 3 and leaves certain working distance between the wall body, makes things convenient for 6 work of anchorage device to fix prestressing tendons 3 on frame post 2, be provided with steel backing plate 4 between anchorage device 6 and the frame post 2, help dispersing the stress that the anchorage device produced to increase the area of contact of steel backing plate 4 and frame post 2 and make the better fixing of prestressing tendons 3 on frame post 2.
Further, the external wall structure further comprises a finish-rolled steel threaded coupler 7, the finish-rolled steel threaded coupler 7 is positioned between adjacent frame columns to connect the prestressed tendons into a whole, the divided external wall bodies can be connected into a whole by utilizing the coupler, so that the stress condition of the whole external wall body is greatly improved, and the bending moment of the external wall is reduced by the prestress generated by the connected prestress.
Further, the concrete outer wall 1 is cast in sections, a section of gap is reserved when the concrete outer wall 1 is cast into a whole, the prestressed tendons 3 are fixed firstly, and then the gap is blocked, so that the working efficiency is improved by the construction method of prestress and wall construction at the same time.
To sum up, the utility model discloses can reduce the crack width of concrete outer wall, arrange in a flexible way, save the cost, do not influence the construction cycle of basement, can improve the atress condition of outer wall, after applying prestressing force, effectively reduce the moment of flexure of outer wall, reduce outer wall fracture infiltration problem by a wide margin.
It should be noted that, the utility model discloses the multiple standard component that uses all can be obtained from the market, and nonstandard component then can customize very much, the utility model discloses the connected mode that adopts such as bolted connection, welding etc. also are very common means in the mechanical field, and the inventor is no longer repeated here.
The above description is only an example of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (5)
1. The utility model provides a basement outer wall external prestressing force anti-cracking measure, includes concrete outer wall (1), frame post (2), prestressing tendons (3), ground tackle (6), its characterized in that, concrete outer wall (1) and frame post (2) are poured as an organic whole and are decided according to required length, and concrete outer wall (1) segmentable system, prestressing tendons (3) partly wear to establish in frame post (2) another part exposes between adjacent frame post (2), prestressing tendons (3) tip is fixed with ground tackle (6).
2. The external prestressed crack-resistant measure for basement exterior wall according to claim 1, wherein a pre-formed hole (5) is formed in the middle 1/3 of the frame column (2), and the frame column (2) and the concrete exterior wall (1) are formed by casting integrally.
3. The external prestressed crack-resistant measure for the basement exterior wall according to claim 1, wherein the anchorage device (6) is positioned at the end of the prestressed tendon (3) and has a certain working distance with the external wall, and a steel base plate (4) is arranged between the anchorage device (6) and the frame column.
4. The external wall external prestress anti-crack measure for the basement according to claim 1, further comprising finish-rolled threaded couplers (7), wherein the finish-rolled threaded couplers (7) are positioned between adjacent frame columns to connect the prestressed tendons (3) into a whole.
5. The external prestressed crack-resistant measure for basement exterior wall according to claim 1, wherein the concrete exterior wall (1) is poured in sections, and the concrete exterior wall (1) is poured into a whole with a gap, wherein the gap is sealed after the prestressed tendons are fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920829416.2U CN210636821U (en) | 2019-06-04 | 2019-06-04 | External prestress anti-cracking measure for basement exterior wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920829416.2U CN210636821U (en) | 2019-06-04 | 2019-06-04 | External prestress anti-cracking measure for basement exterior wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210636821U true CN210636821U (en) | 2020-05-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920829416.2U Active CN210636821U (en) | 2019-06-04 | 2019-06-04 | External prestress anti-cracking measure for basement exterior wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210636821U (en) |
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2019
- 2019-06-04 CN CN201920829416.2U patent/CN210636821U/en active Active
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