CN211947914U

CN211947914U - Double-limb thin-wall Y-shaped pier

Info

Publication number: CN211947914U
Application number: CN202020363182.XU
Authority: CN
Inventors: 赵晓波; 韩阁; 陈波; 韦登厚; 沈中原; 权志杰; 万静; 王波
Original assignee: Chongqing Rail Transit Design And Research Institute Co ltd; Chongqing Monorail Traffic Engineering Co ltd
Current assignee: Chongqing Rail Transit Design And Research Institute Co ltd; Chongqing Monorail Traffic Engineering Co ltd
Priority date: 2020-03-20
Filing date: 2020-03-20
Publication date: 2020-11-17
Anticipated expiration: 2030-03-20

Abstract

The utility model discloses a two limbs thin wall Y shape mounds, including cushion cap base and arc post, the arc post sets up in pairs on the cushion cap base, and two arc posts constitute middle hollow two legs Y shape pier stud, and the column cap is installed at the top of arc post, connects through horizontal even tie beam between the two column caps. The utility model has the advantages that: the split type double-limb thin-wall Y-shaped pier is split into two column caps and two arc-shaped columns, and is prefabricated and processed in a factory through mechanical line production, the arc-shaped columns can be prefabricated in an inverted horizontal mode, manufacturing, storage and transportation are facilitated, and the integral double-limb thin-wall Y-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 is installed on site, mechanical hoisting is adopted, the field operation is less than 3 days, and compared with the original cast-in-place pier stud, the field operation time is greatly shortened, so that the time of road traffic and urban environment influence is reduced.

Description

Double-limb thin-wall Y-shaped pier

Technical Field

The utility model relates to a bridge construction technical field, especially two limb thin wall Y shape mounds.

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 a thin-wall pier, a flexible pier, a column pier and a pile pier, the existing thin-wall pier, a reinforced concrete thin-wall pier, a double-wall pier and a V-shaped pier are adopted, the pier has the advantages that materials 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 pivot 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 large, and great influence is.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a double-limb thin-wall Y-shaped pier which is convenient to construct, saves raw materials and has stable structure.

The purpose of the utility model is realized through the following technical scheme: the double-limb thin-wall Y-shaped pier comprises a bearing platform base and arc-shaped columns, wherein the arc-shaped columns are arranged on the bearing platform base in pairs, the two arc-shaped columns form a double-leg Y-shaped pier column with a hollow middle, column caps are installed at the tops of the arc-shaped columns, and the two column caps are connected through a transverse connecting beam.

Preferably, the cap is located at the upper end of the arc-shaped column and is prefabricated integrally with the arc-shaped column.

Preferably, an anchoring steel bar for transversely connecting the beam is reserved on the inner side of the column cap and penetrates through the anchoring hole.

Preferably, the two arc-shaped columns are also connected through a transverse connecting beam.

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 arc 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 arc 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 arc-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, the connecting piece is installed on the anchor rod groups through nuts, and one side wall of the connecting piece is attached to the outer side wall of the arc-shaped column.

Preferably, the threaded connection sleeve is embedded in the outer side of the lower end of the arc-shaped column, and 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 utility model has the advantages of it is following: the utility model discloses a two limbs thin wall Y shape mounds, the integrative prefabrication of arc post and cap to adopt mechanized line production prefabrication processing to accomplish in the mill, the arc post can adopt the supine posture prefabricated, is convenient for make, stores and transports, can assemble into whole two limbs thin wall Y shape mounds in the mill before the 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 cast-in-place pier stud cap 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 stud cap, the field operation time is greatly shortened, so that the time of road passage and urban environment influence is reduced. The base mounting layer is provided with a groove B, the arc-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 arc-shaped column is filled into a solid pier column within a certain range so as to improve the anti-collision capacity of the double-limb thin-wall pier and the double-limb thin-wall Y-shaped pier.

Drawings

Fig. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a schematic side view of the cap of FIG. 1 taken along line A-A;

FIG. 3 is a schematic view of the installation of the set of anchors;

FIG. 4 is a schematic diagram of H-H in FIG. 3;

FIG. 5 is a schematic view of the structure of J-J in FIG. 3;

FIG. 6 is a schematic view of the attachment of the connector;

in the figure, 1-arc column, 2-transverse connecting beam, 3-bearing platform base, 4-column cap, 31-pile foundation, 32-base installation layer, 33-fixing layer, 34-groove B, 35-reinforcing steel bar B, 36-anchor rod group, 37-connecting piece, 41-groove A and 42-anchor hole.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as 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 accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, the embodiments 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", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which the products of the present invention are conventionally placed in use, or the position or positional relationship which the skilled person conventionally understand, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the reference is made must have a specific position, 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, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in figure 1, the double-limb thin-wall Y-shaped pier comprises a bearing platform base 3 and arc-shaped columns 1, the arc-shaped columns 1 are arranged on the bearing platform base 3 in pairs, the two arc-shaped columns 1 form a double-leg Y-shaped pier column with a hollow middle part, the tops of the arc-shaped columns 1 are provided with column caps 4, further, the two column caps 4 are connected through a transverse connecting beam 2, the two arc-shaped columns 1 are also connected through the transverse connecting beam 2, the transverse connecting beam 2 is arranged, so that the transverse rigidity of the Y-shaped pier is increased, the structural strength of the Y-shaped pier is increased, the bearing platform base 3 belongs to field construction, the column caps 4 and the arc-shaped columns 1 are prefabricated and processed in a factory through mechanical flow operation, the arc-shaped columns 1 can be prefabricated in a horizontal mode and are convenient to manufacture, store and transport, the arc-shaped columns 1 and the column caps 4 can be spliced into an integral double-limb Y-shaped pier before installation, the arc-shaped columns 1 and the column caps 4 are, two arc-shaped columns 1 are spliced into a hollow component through the transverse connecting beam 2, so that the structural strength of the hollow component is guaranteed, and 30% -40% of raw materials are saved. When the cast-in-place pier stud cap is installed on site, mechanical hoisting can be adopted, the field operation time is less than 3 days, and compared with the original cast-in-place pier stud cap 4 which needs more than 25 days, 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. 2, the inside of the column cap 4 is reserved with an anchoring steel bar through anchor hole 42 for the transverse connecting beam and an anchoring steel bar through the top transverse connecting beam 2. Further, the arc-shaped column 1 can be rectangular, circular or other shapes in cross section, the material can be reinforced concrete, steel pipe concrete or steel structure, preferably, the arc-shaped column 1 is rectangular in cross section, therefore, the groove A41 is a rectangular groove, the size of the groove A41 is slightly larger than the external size of the two arc-shaped columns 1 after the assembly is completed, the inner side of the middle part of the arc-shaped column 1 can be provided with a plurality of anchor rods for connecting the connecting members of the middle transverse connecting beam 2, in the embodiment, the through hole of the column cap 4 and the anchor rod in the middle of the arc column 1 are both arranged when the arc column 1 is prefabricated, when the anchor rod is installed, the anchor rod penetrates through the anchor rod hole and then is locked through the nut, and further, after the anchor rod is installed, and grouting holes are reserved in the column caps 4, and grouting liquid is poured into the grouting holes, so that gaps between the anchor rods and the anchor rod holes are filled, and meanwhile, the firmness of installation between the beam arc columns 1 is improved.

In this embodiment, as shown in fig. 3 to 6, the bearing platform base 3 includes a pile foundation 31, a base installation layer 32 and a fixing layer 33, the bearing platform base 3 is supported by the pile foundation 31, a groove B34 is formed on the upper surface of the base installation layer 32, the lower end of the arc-shaped column 1 is installed in a groove B34, the groove B34 is also a rectangular groove, the size of the groove is slightly larger than the external size of the two arc-shaped columns 1 after the two arc-shaped columns 1 are assembled, further, a steel bar B35 is embedded in the groove B34 of the base installation layer 32, a steel bar B35 is located between the two arc-shaped columns 1, in order to facilitate the installation of the arc-shaped columns 1, a plurality of anchor rod groups 36 are embedded on the base installation layer 32, a connecting member 37 is installed on the anchor rod group 36 through a nut, a side wall of the connecting member 37 is attached to the outer side wall of the arc-shaped column 1, further, a threaded, preferably, the connecting member 37 is a steel member, and the two working surfaces of the connecting member 37 intersect at right angles, the working surface of the connecting member 37 is provided with a through hole for the anchor rod group 36 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 36 passes through the corresponding through hole and is locked by the nut, when the arc-shaped column 1 is installed, the lower end of the arc-shaped column 1 is installed in the groove B34, then the connecting member 37 is installed, so that one working surface of the connecting member 37 is tightly attached to the top of the base installation layer 32, the other working surface is tightly attached to the outer side wall of the arc-shaped column 1, then the arc-shaped column 1 can be temporarily fixed by the nut and the screw rod, further, in order to facilitate the installation of the connecting member 37, the through hole through which the anchor rod group 36 passes on the connecting member 37 is, and then, a fixing layer 33 is poured on the base mounting layer 32, after the fixing layer 33 is poured, the lower end of the arc-shaped column 1 is positioned in the fixing layer 33, and the reinforcing steel bar B35 is also positioned in the fixing layer 33, so that the fixing layer 33 pours the lower end of the arc-shaped column 1 into a solid pier column within a certain range, the anti-collision capacity of the double-limb thin-wall Y-shaped pier is improved, and the reliability of the double-limb thin-wall Y-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 modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. Double limb thin wall Y shape mound, its characterized in that: including cushion cap base and arc post, the arc post sets up in pairs on the cushion cap base, and two the arc post constitutes middle hollow both legs Y shape pier stud, the cap is installed at the top of arc post, two connect through horizontal tie beam between the cap.

2. The dual limb thin wall Y-pier of claim 1, wherein: the column cap is located at the upper end of the arc-shaped column and is integrally prefabricated with the arc-shaped column.

3. The dual limb thin wall Y-pier of claim 2, wherein: and an anchor hole for the anchoring steel bar of the transverse connecting beam to pass through is reserved on the inner side of the column cap.

4. The dual limb thin wall Y-pier of claim 3, wherein: the two arc-shaped columns are also connected through the transverse connecting beam.

5. A double-limb thin-wall Y-shaped pier as claimed in any one of claims 1 to 4, 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 arc 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 arc post is located in the fixed bed.

6. The dual limb thin wall Y-pier of claim 5, wherein: and reinforcing steel bars B are embedded in the grooves B of the base mounting layer and are positioned between the two arc-shaped columns, and the reinforcing steel bars B are positioned in the fixed layer.

7. The dual limb thin wall Y-pier of claim 6, 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 arc-shaped column.

8. The dual limb thin wall Y-pier of claim 7, wherein: and a threaded connecting sleeve is embedded in the outer side of the lower end of the arc-shaped column, and corresponds to the anchor rod group in spatial position.

9. The dual limb thin wall Y-pier of claim 8, 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.