CN111188264A - Double-limb thin-wall T-shaped pier - Google Patents
Double-limb thin-wall T-shaped pier Download PDFInfo
- Publication number
- CN111188264A CN111188264A CN202010202563.4A CN202010202563A CN111188264A CN 111188264 A CN111188264 A CN 111188264A CN 202010202563 A CN202010202563 A CN 202010202563A CN 111188264 A CN111188264 A CN 111188264A
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- pier
- shaped
- wall
- thin wall
- limb thin
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
Abstract
The invention discloses a double-limb thin-wall T-shaped pier which comprises a bearing platform base, U-shaped columns and a capping beam, wherein the U-shaped columns are arranged between the bearing platform base and the capping beam in pairs, and staggered openings of the U-shaped columns are oppositely arranged to form a hollow thin-wall pier column. The invention has the beneficial effects that: the split type double-limb thin-wall T-shaped pier is split into a cover beam and two U-shaped columns, and is prefabricated and processed in a factory through mechanical line production, the U-shaped columns can be prefabricated in an inverted horizontal mode, manufacturing, storage and transportation are facilitated, and the integral double-limb thin-wall T-shaped pier can be assembled in the factory before installation. The hollow member is prefabricated by splitting and assembled, so that the structural strength of the hollow member is guaranteed, and 30-40% of raw materials are saved. When the pier cap beam is installed on site, mechanical hoisting can be adopted, the field operation time is less than 3 days, and compared with the field operation time of more than 25 days needed by the original cast-in-place pier cap beam, the field operation time is greatly shortened, so that the time of road passing and urban environment influence is reduced.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to a double-limb thin-wall T-shaped pier.
Background
The pier mainly comprises a top cap or a cap beam and a pier body. The abutment mainly comprises a top cap and an abutment body. The top cap or the cap beam has the function of dispersing and uniformly transmitting the larger and concentrated force transmitted from the bridge span support to the pier body and the platform body, so that the requirement on the strength of the top cap is higher. In addition, the top cap and the cap beam need to have larger plane size, so that a necessary working surface is provided for construction, beam erection, maintenance and repair. The pier body and the platform body are main structures for supporting the bridge span, not only bear all loads transmitted by the bridge span structure, but also directly bear various loads such as soil pressure, water flow impact force, ice pressure, ship impact force and the like, so that the pier body and the platform body have enough strength, rigidity and stability.
The pier can be divided into thin-wall pier, flexible pier, column pier and stake formula pier, and current thin-wall pier reinforced concrete includes: the concrete thin-wall pier, the double-wall pier and the V-shaped pier are adopted, the material can be saved, the dead weight of the pier is reduced, meanwhile, the rigidity of the pier can be increased through the double-wall pier, the negative bending moment of a main beam fulcrum is reduced, the attractiveness of a bridge is improved, the existing pier needs to be poured on site when being constructed, a template and a support need to be erected before pouring, the template and the support need to be disassembled after reaching the age, the pier needs to be maintained for a long time, the pier column, the cap beam and the top cap need to be constructed separately, the whole construction period is long, the construction site requirement is.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a double-limb thin-wall T-shaped pier which is convenient to construct, saves raw materials and has a stable structure.
The purpose of the invention is realized by the following technical scheme: the double-limb thin-wall T-shaped pier comprises a bearing platform base, U-shaped columns and a cover beam, wherein the U-shaped columns are arranged between the bearing platform base and the cover beam in pairs, and staggered openings of the U-shaped columns are oppositely arranged to form the hollow thin-wall pier column.
Preferably, the bottom of the bent cap is provided with a groove A, and the upper end of the U-shaped column is arranged in the groove A.
Preferably, a plurality of reinforcing steel bars A are reserved in the groove A at the bottom of the cover beam and positioned between the two U-shaped columns.
Preferably, a plurality of anchor rods are arranged at the top of the U-shaped column, anchor holes corresponding to the anchor rods are reserved in the grooves A at the bottom of the bent cap, and the anchor rods penetrate through the anchor holes and are anchored at the top of the bent cap through nuts.
Preferably, a plurality of steel bars A form a steel bar cage through binding, the steel bar cage is surrounded by the two U-shaped columns, and an anchoring section is formed after concrete is poured in the section.
Preferably, the cushion cap base includes pile foundation, pedestal mounting layer and fixed bed, and the cushion cap base is supported by the pile foundation, and the upper surface on pedestal mounting layer is equipped with recess B, and the lower extreme of U-shaped post is installed in recess B, and the fixed bed passes through concrete placement at the upper surface on pedestal mounting layer, and the lower extreme of U-shaped post is located the fixed bed.
Preferably, a reinforcing steel bar B is pre-embedded in a groove B of the base mounting layer, the reinforcing steel bar B is positioned between the two U-shaped columns, and the reinforcing steel bar B is positioned in the fixing layer.
Preferably, a plurality of anchor rod groups are buried underground on the base mounting layer, connecting pieces are mounted on the anchor rod groups through nuts, and one side wall of each connecting piece is attached to the outer side wall of the U-shaped column.
Preferably, a threaded connection sleeve is embedded in the outer side of the lower end of the U-shaped column, and the threaded connection sleeve corresponds to the anchor rod group in the spatial position.
Preferably, the connecting piece is a section steel member, the working face of the connecting piece is provided with a through hole for the anchor rod group to pass through and a through hole for the screw rod to pass through, the screw rod passes through the corresponding through hole and is connected with the threaded connection sleeve, and the anchor rod group passes through the corresponding through hole and is locked through the nut.
The invention has the following advantages: the double-limb thin-wall T-shaped pier is split into the capping beam and the two U-shaped columns, and is prefabricated and processed in a factory through mechanical line production, the U-shaped columns can be prefabricated in an inverted horizontal mode, manufacturing, storage and transportation are facilitated, and the integral double-limb thin-wall T-shaped pier can be assembled in the factory before installation. The hollow component is prefabricated in blocks and then assembled, so that the structural strength of the hollow component is guaranteed, and 30% -40% of raw materials are saved. When the pier cap beam is installed on site, mechanical hoisting can be adopted, the field operation time is less than 3 days, and compared with the field operation time of more than 25 days needed by the original cast-in-place pier cap beam, the field operation time is greatly shortened, so that the time of road passing and urban environment influence is reduced. The base mounting layer is provided with a groove B, the U-shaped column is mounted in the groove B and is temporarily fixed through a connecting piece, and finally the fixing layer is poured, and the lower end of the U-shaped column is filled into a solid pier column within a certain range, so that the anti-collision capacity of the double-limb thin-wall pier and the double-limb thin-wall T-shaped pier is improved.
Drawings
FIG. 1 is a first schematic view of the present invention;
FIG. 2 is a second schematic view of the present invention;
FIG. 3 is a schematic view of the configuration A-A of FIG. 1;
FIG. 4 is a schematic view of the construction of B-B in FIG. 1;
FIG. 5 is a schematic view of the configuration of C-C of FIG. 1;
FIG. 6 is a schematic view of the construction of the capping beam;
FIG. 7 is a schematic view of D-D configuration of FIG. 6;
FIG. 8 is a schematic view of the installation of rebar A;
FIG. 9 is a schematic view of the configuration of E-E in FIG. 8;
FIG. 10 is a schematic view of the configuration F-F of FIG. 8;
FIG. 11 is a schematic illustration of the installation of a reinforcement cage;
FIG. 12 is a schematic view of the configuration G-G of FIG. 11;
FIG. 13 is a schematic view of the installation of the set of anchors;
FIG. 14 is a schematic view of the configuration H-H of FIG. 13;
FIG. 15 is a schematic view of the construction of J-J in FIG. 13;
FIG. 16 is a schematic view of the attachment of the connector;
in the figure, 1-capping beam, 2-U-shaped column, 3-bearing platform base, 11-groove A, 12-anchor hole, 13-steel bar A, 14-steel bar cage, 15-anchor section, 31-pile foundation, 32-base installation layer, 33-fixed layer, 34-groove B, 35-steel bar B, 36-anchor rod group and 37-connecting piece.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that the products of the present invention conventionally lay out when in use, or orientations or positional relationships that are conventionally understood by those skilled in the art, which are merely for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-5, the double-limb thin-wall T-shaped pier comprises a bearing platform base, U-shaped columns and a capping beam, wherein the U-shaped columns are arranged between the bearing platform base and the capping beam in pairs, staggered openings of the U-shaped columns are oppositely arranged to form the hollow thin-wall pier columns, the bearing platform base belongs to field construction, the capping beam and the U-shaped columns are prefabricated and processed in a factory through mechanical flow process, the U-shaped columns can be prefabricated in an overhead horizontal mode, manufacturing, storage and transportation are convenient, the U-shaped columns and the capping beam can be assembled into the integral double-limb thin-wall T-shaped pier in the factory before installation, the U-shaped columns and the capping beam are prefabricated in a split mode to form hollow components, the structural strength of the integral double-limb thin-wall T-shaped pier is guaranteed, and 30% -40%. When the pier cap beam is installed on site, mechanical hoisting can be adopted, the field operation time is less than 3 days, and compared with the field operation time of more than 25 days needed by the original cast-in-place pier cap beam, the field operation time is greatly shortened, so that the time of road passing and urban environment influence is reduced.
In this embodiment, as shown in fig. 6 to 10, a groove a is formed at the bottom of the capping beam, the upper end of the U-shaped column is installed in the groove a, the groove a is a rectangular groove, and the size of the groove a is slightly larger than the external size of the two U-shaped columns after the two U-shaped columns are assembled, further, a plurality of reinforcing steel bars a are reserved in the groove a at the bottom of the capping beam, the reinforcing steel bars a are located between the two U-shaped columns, a plurality of anchor rods are arranged at the top of the U-shaped columns, the anchor rods protrude from the U-shaped columns, anchor holes corresponding to the anchor rods are reserved in the groove a at the bottom of the capping beam, the anchor rods pass through the anchor holes and are anchored at the top of the capping beam by nuts, in this embodiment, the reinforcing steel bars a and the anchor holes are buried when the capping beam is prefabricated, the anchor rods are prefabricated when the U-shaped columns are installed, the anchor rods pass through the anchor holes and then are locked by nuts, further, a grouting hole is reserved, grouting liquid is poured into the grouting holes, so that gaps between the anchor rods and the anchor holes are filled, and the firmness of installation between the U-shaped columns and the cover beams is improved.
In this embodiment, as shown in fig. 11 and 12, a plurality of steel bars a are bound to form a steel bar cage, two U-shaped columns surround the steel bar cage, and an anchoring section is formed after concrete is poured in the section, so that the installation stability between the U-shaped columns and the cover beam is further improved through the anchoring section, and the reliability of the double-limb thin-wall T-shaped pier is improved.
In this embodiment, as shown in fig. 13 to 16, the bearing platform base includes a pile foundation, a base installation layer and a fixing layer, the bearing platform base is supported by the pile foundation, the upper surface of the base installation layer is provided with a groove B, the lower end of the U-shaped column is installed in the groove B, the groove B is also a rectangular groove, the size of the groove B is slightly larger than the external size of the assembled two U-shaped columns, further, a reinforcing steel bar B is pre-embedded in the groove B of the base installation layer, the reinforcing steel bar B is located between the two U-shaped columns, for facilitating the installation of the U-shaped columns, a plurality of anchor rod sets are embedded in the base installation layer, the anchor rod sets are provided with connecting pieces through nuts, one side wall of each connecting piece is attached to the outer side wall of the U-shaped column, further, a threaded connection sleeve is pre-embedded in the outer side of the lower end of the U-shaped column, and the threaded connection sleeve corresponds to the anchor rod, the working surface of the connecting piece is provided with a through hole for the anchor rod group to pass through and a through hole for the screw rod to pass through, the screw rod passes through the corresponding through hole and is connected with the threaded connection sleeve, the anchor rod group passes through the corresponding through hole and is locked by a nut, when the U-shaped column is installed, the lower end of the U-shaped column is installed in the groove B, then the connecting piece is installed, one working surface of the connecting piece is clung to the top of the base installation layer, the other working surface is clung to the outer side wall of the U-shaped column, then the U-shaped column can be temporarily fixed by the nut and the screw rod, further, for the convenience of installation of the connecting piece, the through hole through which the anchor rod group passes on the connecting piece is a round hole or a long strip waist-shaped hole, preferably, the through hole is a long strip waist-shaped hole, after the U-shaped column is temporarily fixed, the fixing layer is, and the reinforcing steel bar B is also positioned in the fixing layer, so that the fixing layer pours the lower end of the U-shaped column into a solid pier column within a certain range to improve the anti-collision capacity of the double-limb thin-wall T-shaped pier, and the reliability of the double-limb thin-wall T-shaped pier is improved.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (10)
1. Double limb thin wall T shape mound, its characterized in that: including cushion cap base, U-shaped post and bent cap, be provided with the U-shaped post between cushion cap base and the bent cap in pairs, the stagger of U-shaped post sets up relatively and constitutes hollow thin wall pier stud.
2. The dual limb thin wall T-pier of claim 1, wherein: the bent cap bottom is equipped with recess A, the upper end of U-shaped post is installed in recess A.
3. The dual limb thin wall T-pier of claim 2, wherein: a plurality of reinforcing steel bars A are reserved in the groove A at the bottom of the cover beam, and the reinforcing steel bars A are located between the two U-shaped columns.
4. The dual limb thin wall T-pier of claim 3, wherein: the U-shaped top of the column is provided with a plurality of anchor rods, the groove A at the bottom of the bent cap is reserved with anchor holes corresponding to the anchor rods, and the anchor rods penetrate through the anchor holes and are anchored at the top of the bent cap through nuts.
5. The dual limb thin wall T-pier of claim 4, wherein: and a plurality of steel bars A form a steel bar cage through binding, the steel bar cage is surrounded by the two U-shaped columns, and an anchoring section is formed after concrete is poured in the section.
6. A double-limb thin-walled T-shaped pier according to any one of claims 1 to 5, wherein: the cushion cap base includes pile foundation, base installation layer and fixed bed, the cushion cap base by the pile foundation supports, the upper surface on base installation layer is equipped with recess B, the lower extreme of U-shaped post is installed in recess B, the fixed bed passes through concrete placement and is in the upper surface on base installation layer, just the lower extreme of U-shaped post is located in the fixed bed.
7. The dual limb thin wall T-pier of claim 6, wherein: and reinforcing steel bars B are embedded in the grooves B of the base mounting layer and are positioned between the two U-shaped columns, and the reinforcing steel bars B are positioned in the fixed layer.
8. The dual limb thin wall T-pier of claim 7, wherein: a plurality of anchor rod groups are buried underground on the base mounting layer, connecting pieces are mounted on the anchor rod groups through nuts, and one side wall of each connecting piece is attached to the outer side wall of the U-shaped column.
9. The dual limb thin wall T-pier of claim 8, wherein: and a threaded connecting sleeve is embedded in the outer side of the lower end of the U-shaped column, and corresponds to the anchor rod group in spatial position.
10. The dual limb thin wall T-pier of claim 9, wherein: the connecting piece is the shaped steel component, the working face of connecting piece is equipped with the through-hole that is used for stock group to pass to and be used for the through-hole that the screw rod passed, the screw rod pass corresponding through-hole and with threaded connection muffjoint, the stock group pass corresponding through-hole and pass through nut locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010202563.4A CN111188264A (en) | 2020-03-20 | 2020-03-20 | Double-limb thin-wall T-shaped pier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010202563.4A CN111188264A (en) | 2020-03-20 | 2020-03-20 | Double-limb thin-wall T-shaped pier |
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| Publication Number | Publication Date |
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| CN111188264A true CN111188264A (en) | 2020-05-22 |
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| CN202010202563.4A Pending CN111188264A (en) | 2020-03-20 | 2020-03-20 | Double-limb thin-wall T-shaped pier |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113931214A (en) * | 2020-11-26 | 2022-01-14 | 中国国家铁路集团有限公司 | Positioning device for anchor hole of prefabricated pier body foundation and construction method |
-
2020
- 2020-03-20 CN CN202010202563.4A patent/CN111188264A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113931214A (en) * | 2020-11-26 | 2022-01-14 | 中国国家铁路集团有限公司 | Positioning device for anchor hole of prefabricated pier body foundation and construction method |
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