CN220888290U - Post-tensioning Y-shaped pier column for orthogonal bent cap - Google Patents
Post-tensioning Y-shaped pier column for orthogonal bent cap Download PDFInfo
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- CN220888290U CN220888290U CN202322499239.5U CN202322499239U CN220888290U CN 220888290 U CN220888290 U CN 220888290U CN 202322499239 U CN202322499239 U CN 202322499239U CN 220888290 U CN220888290 U CN 220888290U
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 61
- 239000010959 steel Substances 0.000 claims abstract description 61
- 239000004567 concrete Substances 0.000 claims abstract description 11
- 210000002435 tendon Anatomy 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 5
- 230000003014 reinforcing effect Effects 0.000 description 14
- 239000011150 reinforced concrete Substances 0.000 description 8
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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Abstract
The post-tensioning Y-shaped pier column for the orthogonal bent cap comprises a lower column section fixed on a foundation, wherein lower vertical steel bars are distributed in the lower column section, and concrete is poured in and around the vertical steel bars; is characterized in that: the upper ends of the lower upright post sections are fixedly connected with left and right inclined sections, the upper ends of the left and right inclined sections are respectively connected with left and right upper upright post sections, inclined steel bars are uniformly arranged in the left and right inclined sections along the length direction of the inclined steel bars, upper upright steel bars are arranged in the left and right upper upright post sections, and concrete is poured on the peripheries of the inclined steel bars and the upright steel bars; the upper surfaces of the left and right upper column sections are used for supporting the capping beam. The post-tensioning Y-shaped pier column for the orthogonal bent cap not only realizes the stable support of the bent cap, but also has less occupation of ground space by the Y-shaped pier column, thereby reducing the occupation of ground traffic space, and being suitable for being applied to urban viaduct road construction with precious ground space.
Description
Technical Field
The utility model relates to a Y-shaped pier stud, in particular to a post-tensioning Y-shaped pier stud for an orthogonal bent cap.
Background
The orthogonal bent cap is a common road supporting structure and mainly comprises pier columns and bent caps, wherein the pier is fixed on a foundation in a vertical mode, and the bent caps are fixed at the upper ends of the piers in a horizontal mode; the mountain section of the urban overhead road and the mountain section of the expressway can use the orthogonal capping beams. However, the existing orthogonal capping beams usually adopt a mode that two upright pier columns support a horizontal capping beam, two ends of the capping beam are fixed on the two pier columns, the occupied space is large due to the existence of the two pier columns, and in urban road construction with ground space being in the size of the soil, the overhead road construction is always expected to reduce the occupied space of the ground as much as possible, so that the viaduct traffic capacity can be ensured, and the influence on ground traffic can be reduced as much as possible.
At least 2 unidirectional traffic lanes are arranged on the bridge sections of the viaduct road and the expressway in the existing city, and if one pier column is used for supporting the bent cap, the occupation of the ground space by the orthogonal bent cap can be effectively reduced. In the case of an orthogonal capping beam using a pier column support, a pier column is required to support a capping beam of at least 2 lanes, which is required to be in a Y-shaped form, but no Y-shaped pier column is present, so a Y-shaped pier column is proposed herein.
In the construction process of reinforced concrete members, prestressing force is usually required to be applied to the reinforced concrete members so as to unload the stress of the reinforced concrete members in the use process and prolong the service life of the reinforced concrete members. At present, two modes of prestressing force are applied, namely a pretensioning method, wherein tension equipment is utilized to apply tensile stress to self-stressing tendons (or steel strands) in the pouring process of reinforced concrete members so as to apply compressive prestressing force to the reinforced concrete members after concrete is solidified; the post-tensioning method is that after the reinforced concrete member is poured, the self-stressing tendons (or steel strands) are penetrated into the reserved through holes and tension is applied, and the self-stressing tendons (or steel strands) after the tension is applied apply compressive prestress to the reinforced concrete. However, the pier column of the conventional orthogonal capping beam does not adopt a mode of applying prestress to increase the bearing capacity.
Disclosure of Invention
The utility model provides a post-tensioning Y-shaped pier column for an orthogonal bent cap, which aims to overcome the defects of the technical problems.
The utility model relates to a post-tensioning Y-shaped pier column for an orthogonal bent cap, which comprises a lower upright column section fixed on a foundation, wherein the lower upright column section is vertically arranged, lower vertical steel bars along the length direction of the lower upright column section are uniformly distributed in the lower upright column section, the lower vertical steel bars are bound together through stirrups uniformly and alternately arranged along the length direction of the lower upright steel bars, and concrete is poured in the inner part and the periphery of the vertical steel bars; the method is characterized in that: the upper ends of the lower upright post sections are fixedly connected with left inclined sections and right inclined sections, the upper ends of the left inclined sections and the right inclined sections are respectively connected with left upper upright post sections and right upper upright post sections, inclined steel bars are uniformly arranged in the left inclined sections and the right inclined sections along the length direction of the inclined steel bars, upper upright steel bars are arranged in the left upper upright post sections and the right upper upright post sections, hooping bars are bound on the inclined steel bars and the upper upright steel bars along the length direction of the inclined steel bars, and concrete is poured on the peripheries of the inclined steel bars and the upright steel bars; the lower upright post section, the left inclined section and the right inclined section form a Y shape, and the upper surfaces of the left upper upright post section and the right upper upright post section are used for supporting the bent cap.
The post-tensioning Y-shaped pier column for the orthogonal bent cap is characterized in that inclined pull plates are arranged on the outer side surfaces of a left inclined section and a right inclined section, a plurality of aligned horizontal first channels are formed in the left inclined section and the right inclined section, first prestressed tendons penetrate through the first channels, and two ends of the first prestressed tendons subjected to tensile stress are anchored on the inclined pull plates on the outer sides of the left inclined section and the right inclined section through first anchors.
The post-tensioning Y-shaped pier column for the orthogonal bent cap is characterized in that the outer sides of the left upper column section and the right upper column section are respectively provided with an upright pulling plate, a plurality of second channels which are aligned are arranged on the left upper column section and the right upper column section, second prestressed tendons penetrate through the second channels, and two ends of the second prestressed tendons subjected to tensile stress are anchored on the upright pulling plates at the outer sides of the left upper column section and the right upper column section through second anchors.
The post-tensioning Y-shaped pier column for the orthogonal bent cap is characterized in that a plurality of connecting anchor rods connected with the bent cap are fixed on the left upper column section and the right upper column section.
The post-tensioning Y-shaped pier column for the orthogonal bent cap is characterized in that the lower vertical steel bars, the inclined steel bars and the upper vertical steel bars are integrated into a whole, and are formed by bending the same steel bars.
The post-tensioning Y-shaped pier column for the orthogonal bent cap is characterized in that the lower vertical steel bars, the inclined steel bars and the upper vertical steel bars are integrated into a whole, and are formed by bending the same steel bars.
The post-tensioning Y-shaped pier column for the orthogonal bent cap is characterized in that a pier seat for protecting the lower end of the lower upright column section is arranged on the periphery of the lower end of the lower upright column section.
The beneficial effects of the utility model are as follows: the post-tensioning Y-shaped pier column for the orthogonal bent cap is provided with a lower column section, a left inclined section, a right inclined section, a left upper column section and a right upper column section, wherein the left upper column section and the right upper column section are respectively fixed on the left inclined section and the right inclined section, and the lower column section and the left inclined section and the right inclined section form a Y shape.
Further, the left inclined section and the right inclined section are pulled after tensile stress is applied through the inclined pulling plate, the first anchorage device and the first prestress rib, and the left upper column section and the right upper column section are pulled after tensile stress is applied through the vertical pulling plate, the second anchorage device and the second prestress rib, so that the left inclined section and the right inclined section and the left upper column section can bear larger load reaching the bent cap without deformation, the Y-shaped pier column is ensured to have larger load bearing capacity, and firmness in the use process is ensured, so that the Y-shaped pier column can reach the designed service life.
Drawings
FIG. 1 is a front view of a post-tensioning Y-shaped pier stud for an orthogonal capping beam of the present utility model;
FIG. 2 is a left side view of a post-tensioning Y-shaped pier stud for an orthogonal capping beam of the present utility model;
FIG. 3 is a top view of a post-tensioning Y-beam pier stud in accordance with the present utility model;
FIG. 4 is an enlarged view of a portion of the area of FIG. 1;
Fig. 5 is a schematic view of the structures of the lower erected reinforcing bars, the inclined reinforcing bars and the upper erected reinforcing bars in the present utility model;
fig. 6 is a view showing the state of use of the post-tensioning Y-pier column for an orthogonal capping beam according to the present utility model.
In the figure: the novel steel pile comprises a lower upright column section 1, a left inclined section 3, a right inclined section 4, an upper upright column section 5, a right upright column section 6, a lower upright steel bar, a 7-inclined steel bar, an 8-upper upright steel bar, 9 stirrups, a 10 foundation, 11 pier seats, 12 inclined pull plates, 13 first anchors, 14 first prestressed tendons, 15 upright pull plates, 16 second anchors, 17 second prestressed tendons, 18 connecting anchors, 19 first channels, 20 second channels and 21 bent caps.
Description of the embodiments
The utility model will be further described with reference to the drawings and examples.
As shown in fig. 1, 2 and 3, a front view, a left view and a top view of a post-tensioning method Y-shaped pier column for an orthogonal capping beam of the present utility model are respectively provided, the illustrated Y-shaped pier column is composed of a lower upright column section 1, a left inclined section 2, a right inclined section 3, an upper left upright column section 4 and an upper right upright column section 5, the lower end of the lower upright column section 1 is fixed on a foundation 10, and the lower upright column section 1 is along the vertical direction. The left inclined section 2 and the right inclined section 3 are fixed at the upper end of the lower upright section 1, and the left inclined section 2 and the right inclined section 3 are symmetrical relative to the axis of the lower upright section 1, so that the lower upright section 1, the left inclined section 2 and the right inclined section 3 form a Y-shaped structure. The lower upright post section 1 is uniformly provided with lower upright steel bars 6, the length direction of the lower upright steel bars 6 is consistent with the length direction of the lower upright post section 1, stirrups 9 are bound on the lower upright steel bars 6 at equal intervals along the length direction of the lower upright steel bars, the stirrups 9 are rectangular, and after the stirrups 9 are bound with the upright steel bars 6, concrete is poured in the lower upright post section 1 and at the periphery of the lower upright post section.
The left inclined section 2 and the right inclined section 3 are respectively provided with uniformly distributed inclined steel bars 7 along the length direction, stirrups 9 which are uniformly distributed on the inclined steel bars 7 along the length direction are bound together, the stirrups 9 are rectangular, and concrete is poured inside and at the periphery of the inclined steel bars 7 and the stirrups 9 after the inclined steel bars 7 are bound together, so that the left inclined section 2 and the right inclined section 3 are formed.
The left upper upright post section 4 and the right upper upright post section 5 are respectively arranged on the left inclined section 2 and the right inclined section 3, the left upper upright post section 4 and the right upper upright post section 5 are in vertical directions, the left upper upright post section 4 and the right upper upright post section 5 are uniformly provided with upper vertical reinforcing steel bars 8, and the upper vertical reinforcing steel bars 8 are bound together through hoops 9. After the upper upright steel bars 8 and the stirrups 9 are bound together, concrete is poured inside and outside the upper upright steel bars, so that the upper left upright column section 4 and the upper right upright column section 5 are formed. In this way, the upper left column section 4 and the upper right column section 5 realize the fixed support of the capping beam 21, and the occupation of the ground space by the Y-shaped pier column is small, so that the occupation of the ground traffic space is small after the orthogonal capping beam is established by the Y-shaped pier column, and the capping beam is suitable for being applied to urban road traffic construction with relatively small space and precious value.
Since the left inclined section 2 and the right inclined section 3 are supported by the lower column section 1 at the bottom, structures for reinforcing the left and right inclined sections and the left and right upper column sections are provided for securing the firmness. As shown in fig. 4, an enlarged view of a partial area in fig. 1 is provided, a first channel 19 in a horizontal direction is provided at an aligned position on the left inclined section 2 and the right inclined section 3, a first tendon 14 is penetrated in the first channel 19, an inclined tie plate 12 is provided at an outer side of a position on the left inclined section 2 and the right inclined section 3 where the first channel 19 is opened, and after the first tendon 14 penetrates through the first channel 19, both ends of the first tendon are anchored on the inclined tie plate 12 through a first anchor 13. Before anchoring, the first prestressed tendons 14 are applied with tensile prestressing, and the first prestressed tendons 14 pressed with tensile prestressing apply compressive stress to the left inclined section 2 and the inclined section 3 through the inclined pulling plates 12, so that part of load to the upper part of the bent cap 21 can be counteracted, and the firmness of the left inclined section 2 and the right inclined section 3 is ensured.
Likewise, a second channel 20 is formed in the position where the left upper column section 4 and the right upper column section 5 are aligned, a second prestress rib 17 penetrates through the second channel 20, and an upright pull plate 15 is arranged on the outer side of the position where the second channel 20 is formed in the left upper column section 4 and the right upper column section 5. After passing through the second channels 20 on the left upper column section 4 and the right upper column section 5, the second prestressed tendons 17 apply tensile stress, and finally, the two ends are fixed on the vertical pulling plates 15 through the second anchors 16. The second tendons 17, to which tensile stress is applied, apply compressive stress to the upper left column section 4 and the upper right column section 5 to increase the load it carries to the bent cap 21.
The included angle between the left inclined section 2 and the right inclined section 3 is not more than 90 degrees, that is, the included angle between the left inclined section 2 and the right inclined section 3 and the erecting direction is not more than 45 degrees, so as to ensure the stability of the left inclined section 2 and the right inclined section 3. The lower extreme of lower stand section 1 is provided with pier base 11, and pier base 11 is the concrete material, when the unexpected circumstances takes place, can collide on pier base 11, can not cause the damage to lower stand section 1.
As shown in fig. 5, a schematic diagram of the structures of the lower upright reinforcing bars, the inclined reinforcing bars and the upper upright reinforcing bars in the present utility model is given, and the lower upright reinforcing bars 6, the inclined reinforcing bars 7 and the upper upright reinforcing bars 8 are shown as an integral structure, and the lower upright reinforcing bars 6, the inclined reinforcing bars 7 and the upper upright reinforcing bars 8 are formed by bending the same reinforcing bars.
As shown in fig. 6, a state of use of the post-tensioning Y-shaped pier column for an orthogonal capping beam according to the present utility model is shown, in order to ensure the connection firmness of the upper left column section 4 and the upper right column section 5 with the capping beam 21, the upper parts of the upper left column section 4 and the upper right column section 5 are fixedly provided with connecting anchors 18, the lower parts of the connecting anchors 18 are poured into the upper left column section 4 and the upper right column section 5, the upper parts of the connecting anchors 18 extend out of the upper surfaces of the upper left column section 4 and the upper right column section 5, the capping beam 21 is hoisted above the upper left column section 4 and the upper right column section 5, and the upper ends of the connecting anchors 18 are inserted into reserved holes of the capping beam 21, so as to realize stable connection and support of the capping beam 21.
Claims (7)
1. The post-tensioning Y-shaped pier column for the orthogonal bent cap comprises a lower column section (1) fixed on a foundation (10), wherein the lower column section is vertically arranged, lower vertical steel bars (6) along the length direction of the lower column section are uniformly distributed in the lower column section, the lower vertical steel bars are bound together through stirrups (9) uniformly arranged at intervals along the length direction of the lower vertical steel bars, and concrete is poured in the inner parts and the periphery of the vertical steel bars; the method is characterized in that: the upper ends of the lower upright post sections are fixedly connected with a left inclined section (2) and a right inclined section (3), the upper ends of the left inclined section and the right inclined section are respectively connected with a left upper upright post section (4) and a right upper upright post section (5), inclined steel bars (7) are uniformly arranged in the left inclined section and the right inclined section along the length direction of the left inclined section and the right inclined section, upper upright steel bars (8) are arranged in the left upper upright post section and the right upper upright post section, stirrups are bound on the inclined steel bars and the upper upright steel bars along the length direction of the inclined steel bars and the upright steel bars, and concrete is poured on the peripheries of the inclined steel bars and the upright steel bars; the lower upright post section, the left inclined section and the right inclined section form a Y shape, and the upper surfaces of the left upper upright post section and the right upper upright post section are used for supporting a capping beam (21).
2. The post-tensioning Y-pillar for an orthogonal capping beam according to claim 1, wherein: the outer side surfaces of the left inclined section (2) and the right inclined section (3) are respectively provided with an inclined pulling plate (12), a plurality of aligned horizontal first channels (19) are formed in the left inclined section and the right inclined section, first prestressed tendons (14) penetrate through the first channels, and two ends of the first prestressed tendons subjected to tensile stress are anchored on the inclined pulling plates outside the left inclined section and the right inclined section through first anchors (13).
3. The post-tensioning Y-pillar for an orthogonal capping beam according to claim 1 or 2, wherein: the outer sides of the left upper upright post section (4) and the right upper upright post section (5) are respectively provided with an upright pulling plate (15), a plurality of second channels (20) which are aligned are formed in the left upper upright post section and the right upper upright post section, second prestressed tendons (17) penetrate through the second channels, and two ends of the second prestressed tendons subjected to tensile stress are anchored on the upright pulling plates (15) on the outer sides of the left upper upright post section and the right upper upright post section through second anchors (16).
4. The post-tensioning Y-pillar for an orthogonal capping beam according to claim 1 or 2, wherein: a plurality of connecting anchor rods (18) connected with the cover beam (21) are fixed on the left upper upright column section (4) and the right upper upright column section (5).
5. The post-tensioning Y-pillar for an orthogonal capping beam according to claim 1 or 2, wherein: the lower vertical steel bar (6), the inclined steel bar (7) and the upper vertical steel bar (8) are integrated into a whole and are formed by bending the same steel bar.
6. The post-tensioning Y-pillar for an orthogonal capping beam according to claim 1 or 2, wherein: the included angle between the left inclined section (2) and the right inclined section (3) is not more than 90 degrees.
7. The post-tensioning Y-pillar for an orthogonal capping beam according to claim 1 or 2, wherein: the periphery of the lower end of the lower upright post section (1) is provided with a pier seat (11) for protecting the lower upright post section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322499239.5U CN220888290U (en) | 2023-09-14 | 2023-09-14 | Post-tensioning Y-shaped pier column for orthogonal bent cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322499239.5U CN220888290U (en) | 2023-09-14 | 2023-09-14 | Post-tensioning Y-shaped pier column for orthogonal bent cap |
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| CN220888290U true CN220888290U (en) | 2024-05-03 |
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| CN202322499239.5U Active CN220888290U (en) | 2023-09-14 | 2023-09-14 | Post-tensioning Y-shaped pier column for orthogonal bent cap |
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| CN (1) | CN220888290U (en) |
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