Large-size special-shaped double-column pier formwork suitable for water

Abstract

The utility model discloses a large-volume special-shaped double-column pier template suitable for water, which comprises two groups of table adding templates, a double-pier-column template and a straining beam template, the double-pier-column template comprises two groups of single-pier-column templates, the bottom ends of the two groups of single-pier-column templates are respectively connected onto the two groups of table adding templates, and the straining beam template is connected with the two groups of single-pier-column templates. The straining beam formwork is connected between the tops of the two sets of single pier column formworks. The large-size special-shaped double-column pier constructed by the utility model is attractive in structure, the wind resistance is greatly improved, and the problem of foundation settlement is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of reinforced concrete pier construction, in particular to a large-volume special-shaped double-column pier formwork applicable to water. Background Technique

[0002] In recent years, with the increase in urban vehicles, the width of bridges has become wider and wider, and the distance between piers supporting the main beam has also been continuously increasing. In order to ensure the stability of the support of wide bridges, double-column piers are used to support the main beam. The double-column pier mainly consists of two single pier columns and a tie beam connected between the two single pier columns, and its advantages are flexible layout and large spanning ability. In the existing double-column piers, the cross-section of each single pier column is a rectangular structure, with a small volume, making it difficult to ensure sufficient foundation bearing capacity and applicability. Moreover, when the double-column pier is built in water, the scouring caused by the freezing of the river in winter will damage the pier body, reducing its safety and service life. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a large-volume special-shaped double-column pier formwork applicable to water, and the large-volume special-shaped double-column pier structure constructed is beautiful, greatly improving the wind resistance performance and reducing the problem of foundation settlement.

[0004] The technical solution of the utility model is as follows:

[0005] A large-volume special-shaped double-column pier formwork applicable to water includes two groups of platform formworks, a double-pier column formwork and a tie beam formwork;

[0006] Each group of platform formworks includes a vertically arranged platform side formwork and an inclined transition formwork. The platform side formworks enclose an annular structure, and the transition formworks enclose a conical ring structure. The opening at the top of the transition formwork is smaller than the opening at its bottom, and the bottom end of the transition formwork is fixedly connected to the top end of the platform side formwork;

[0007] The double-pier column formwork includes two groups of single-pier column formworks. The cross-sections at the bottom and top of the transition formwork and the cross-section of each group of single-pier column formworks are all pentagonal structures. The cross-section at the top of the transition formwork is the same in shape and size as the cross-section of each group of single-pier column formworks. The bottom end of each group of single-pier column formworks is connected to the top end of the corresponding group of platform formworks. Each group of single-pier column formworks includes a group of longitudinal side formworks, two groups of transverse side formworks, two groups of inclined side formworks and five groups of arc connecting formworks. The inner ends of the two groups of transverse side formworks are respectively connected to both ends of a group of longitudinal side formworks through a corresponding group of arc connecting formworks and are parallel to each other. The outer ends of the two groups of inclined side formworks are connected to each other through a corresponding group of arc connecting formworks to form a V-shaped structure. The inner ends of the two groups of inclined side formworks are respectively connected to the outer ends of the two groups of transverse side formworks through a corresponding group of arc connecting formworks;

[0008] The two sets of longitudinal side formworks of the two sets of single pier column formworks are vertically opposite to each other. A tie beam formwork is connected between the two sets of longitudinal side formworks. The tie beam formwork includes two sets of tie beam main formworks, one set of bottom arc formwork, two sets of top docking formworks and two sets of bottom docking formworks. The two sets of tie beam main formworks both extend horizontally and are parallel to each other. The bottom end surface of each set of tie beam main formwork is an arc concave surface. The two transverse edge parts of one set of bottom arc formwork are respectively connected to the bottom end surfaces of the two sets of tie beam main formworks. The two sets of top docking formworks and the two sets of bottom docking formworks are both vertically arranged and extend longitudinally. The two sets of top docking formworks are respectively in close contact with and fixedly connected to the two sets of longitudinal side formworks. The bottom ends of the two sets of top docking formworks are respectively fixedly connected to the top ends of the two ends of the two sets of tie beam main formworks. The two sets of bottom docking formworks are respectively in close contact with and fixedly connected to the two sets of longitudinal side formworks. The top ends of the two sets of bottom docking formworks are respectively fixedly connected to the bottom ends of the two ends of the two sets of tie beam main formworks.

[0009] In each set of single pier column formworks, each set of longitudinal side formworks, each set of transverse side formworks, each set of inclined side formworks and each set of arc connecting formworks all include multiple vertical formworks. The multiple vertical formworks in each set of longitudinal side formworks, each set of transverse side formworks, each set of inclined side formworks or each set of arc connecting formworks are sequentially spliced and fixed from bottom to top.

[0010] On the outer surface of each set of single pier column formworks, there are back ribs connected. A reinforcing belt is tied around the outer periphery of each set of single pier column formworks. A horizontal tie rod is connected between the inner circles of each set of single pier column formworks and between the two sets of tie beam main formworks.

[0011] On the inner surface of each of the five sets of arc connecting formworks, there is an ice-breaking edge connected. Each ice-breaking edge is formed by cross-splicing multiple first-class curve section steel rails and multiple second-class curve section steel rails. The multiple first-class curve section steel rails and the multiple second-class curve section steel rails all extend vertically. A second-class curve section steel rail is spliced between two adjacent first-class curve section steel rails. A first-class curve section steel rail is spliced between two adjacent second-class curve section steel rails. The bottom of the first-class curve section steel rail is embedded in the bearing platform. The bottom end of the second-class curve section steel rail is placed on the top surface of the bearing platform.

[0012] The tie beam formwork is supported by a disc buckle support. The disc buckle support includes multiple vertical columns, multiple connecting discs, multiple horizontal connecting rods, multiple diagonal braces, an adjustable base and an adjustable bracket. The multiple vertical columns are arranged in a matrix. The bottom end of each vertical column is connected to the corresponding adjustable base. The multiple horizontal connecting rods are arranged at different horizontal heights and are connected between adjacent vertical columns. Connecting discs are arranged on the multiple vertical columns. The multiple diagonal braces are connected to the corresponding connecting discs. The adjustable bracket is connected to the top ends of the multiple vertical columns. The top surface of the adjustable bracket contacts the bottom surface of the bottom arc formwork of the tie beam formwork. The two ends of the adjustable bracket are respectively fixedly connected to the outer walls of the two sets of longitudinal side formworks.

[0013] Advantages of the present utility model:

[0014] (1). The present utility model is provided with a platform adding formwork. By setting the platform, the effective area of the foundation is increased, the bearing capacity of the foundation is improved, and the settlement of the foundation is reduced. The transition formwork in the platform adding formwork ensures accurate connection between the platform and the pier body and avoids the problem of connection step difference.

[0015] (2). The cross-sections of the two groups of single pier column formworks of the present utility model are both pentagonal structures. While improving the aesthetics of the pier column, the cross-sectional area of the pier column is increased, the wind resistance performance is improved, and being set as a pentagonal structure makes the longitudinal side edges of the two single pier columns parallel to each other, facilitating the connection of the cross beam and enhancing the stability of the special-shaped double-column pier structure.

[0016] (3). The present utility model is provided with ice-breaking edges at each arc corner of the single pier column, greatly reducing the damage to the pier body caused by the scour brought by the freezing of the river in winter. Moreover, the ice-breaking edges are arranged by alternating two kinds of curved section steel rails, preventing the concentration of steel bar stress and improving the ice resistance ability. Because the curved section steel rails are cast integrally with the pier body, a more compact overall structure can be formed, and the pier body is not easy to break integrally along the position of the steel rails inside the pier body. Secondly, the stress area can be reduced, enhancing the overall stability of the ice-breaking edges.

[0017] (4). The present utility model is provided with a disc buckle support. The overall structure of the disc buckle support is stable and supports the cross beam formwork, greatly improving the structural stability during the concrete pouring construction of the cross beam. Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of the connection of the platform adding formwork, double pier column formwork and cross beam formwork of the present utility model.

[0019] Figure 2 is a top view of the double pier column formwork and the cross beam formwork of the present utility model.

[0020] Figure 3 is a schematic structural diagram of the disc buckle support of the present utility model.

[0021] Figure 4 is a top view of the ice-breaking edge of the present utility model.

[0022] Reference numerals: 11 - side formwork of the platform, 12 - transition formwork, 21 - longitudinal side formwork, 22 - transverse side formwork, 23 - inclined side formwork, 24 - arc connecting formwork, 25 - back brace, 26 - horizontal tie rod, 27 - first type of curved section steel rail, 28 - second type of curved section steel rail, 31 - main formwork of the cross beam, 32 - bottom arc formwork, 33 - top docking formwork, 34 - bottom docking formwork, 41 - vertical column, 42 - horizontal connecting rod, 43 - diagonal brace, 44 - adjustable base, 45 - adjustable support. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] See Figures 1 - 4 , a large-volume special-shaped double-column pier formwork applicable to water, including two groups of platform formworks, double-column pier formworks and crossbeam formworks;

[0025] Each group of platform formworks includes a vertically arranged platform side formwork 11 and an inclined transition formwork 12. The platform side formworks 11 enclose an annular structure, and the transition formworks 12 enclose a conical ring structure. The opening at the top of the transition formwork 12 is smaller than the opening at its bottom end, and the bottom end of the transition formwork 12 is fixedly connected to the top end of the platform side formwork 11;

[0026] The double-column pier formwork includes two groups of single-column pier formworks. The cross-sections at the bottom and top ends of the transition formwork 12 and the cross-section of each group of single-column pier formworks are all pentagonal structures. The cross-section at the top end of the transition formwork 12 is the same in shape and size as the cross-section of each group of single-column pier formworks. The bottom end of each group of single-column pier formworks is connected to the top end of a corresponding group of platform formworks. Each group of single-column pier formworks includes a group of longitudinal side formworks 21, two groups of transverse side formworks 22, two groups of inclined side formworks 23 and five groups of arc connecting formworks 24. Each group of longitudinal side formworks 21, each group of transverse side formworks 22, each group of inclined side formworks 23 and each group of arc connecting formworks 24 include multiple vertical formworks. The multiple vertical formworks in each group of longitudinal side formworks 21, each group of transverse side formworks 22, each group of inclined side formworks 23 or each group of arc connecting formworks 24 are sequentially spliced and fixed from bottom to top. The inner ends of the two groups of transverse side formworks 22 are respectively connected to both ends of a group of longitudinal side formworks 21 through a corresponding group of arc connecting formworks 24 and are parallel to each other. The outer ends of the two groups of inclined side formworks 23 are connected to each other through a corresponding group of arc connecting formworks 24 to form a V-shaped structure. The inner ends of the two groups of inclined side formworks 23 are respectively connected to the outer ends of the two groups of transverse side formworks 22 through a corresponding group of arc connecting formworks 24. A back rib 25 is connected to the outer surface of each group of single-column pier formworks, and a reinforcing strap is tied around the periphery of each group of single-column pier formworks;

[0027] Among them, an ice-breaking edge is connected to the inner surface of each of the five groups of arc-shaped connection templates 24. Each ice-breaking edge is formed by cross-splicing a plurality of first-type curved-section steel rails 27 and a plurality of second-type curved-section steel rails 28. The seven first-type curved-section steel rails 27 and the eight second-type curved-section steel rails 28 all extend vertically. A second-type curved-section steel rail 28 is spliced between two adjacent first-type curved-section steel rails 27, and a first-type curved-section steel rail 27 is spliced between two adjacent second-type curved-section steel rails 28. The bottom of the first-type curved-section steel rail 27 is embedded in the bearing platform, and the bottom end of the second-type curved-section steel rail 28 is placed on the top surface of the bearing platform;

[0028] The two longitudinal side templates 21 of the two groups of single pier column templates are vertically opposite. A crossbeam template is connected between the two longitudinal side templates 21. The crossbeam template includes two groups of crossbeam main templates 31, a bottom arc template 32, two groups of top docking templates 33 and two groups of bottom docking templates 34. The two groups of crossbeam main templates 31 both extend horizontally and are parallel to each other. The bottom end surface of each group of crossbeam main templates 31 is an arc-shaped concave surface. The two horizontal edge parts of a bottom arc template 32 are respectively connected to the bottom end surfaces of the two groups of crossbeam main templates 31. The two groups of top docking templates 33 and the two groups of bottom docking templates 34 are both vertically arranged and extend longitudinally. The two groups of top docking templates 33 are respectively in close contact with and fixedly connected to the two groups of longitudinal side templates 21. The bottom ends of the two groups of top docking templates 33 are respectively fixedly connected to the top ends of the two ends of the two groups of crossbeam main templates 31. The two groups of bottom docking templates 34 are respectively in close contact with and fixedly connected to the two groups of longitudinal side templates 21. The top ends of the two groups of bottom docking templates 34 are respectively fixedly connected to the bottom ends of the two ends of the two groups of crossbeam main templates 31;

[0029] A horizontal tie rod 26 is connected between the two transverse side templates 22 in the inner circle of each group of single pier column templates and between the two groups of crossbeam main templates 31;

[0030] The crossbeam template is supported by a disc buckle support. The disc buckle support includes a plurality of vertical columns 41, a plurality of connection discs, a plurality of horizontal connecting rods 42, a plurality of diagonal braces 43, an adjustable base 44 and an adjustable support 45. The plurality of vertical columns 41 are arranged in a matrix. The bottom end of each vertical column 41 is connected to the corresponding adjustable base 44. The adjustable base 44 supports on the ground to level the bottom surface. The plurality of horizontal connecting rods 42 are arranged at different horizontal heights and are connected between adjacent vertical columns 41. Connection discs are arranged on the plurality of vertical columns. The top ends and bottom ends of the plurality of diagonal braces 43 are respectively connected to the corresponding connection discs. The adjustable support 45 is connected to the top ends of the plurality of vertical columns 41. The top surface of the adjustable support 45 contacts the bottom surface of the bottom arc template 32 of the crossbeam template. The two ends of the adjustable support 45 are respectively fixedly connected to the outer walls of the two groups of longitudinal side templates 21, so that a bottom arc template 32 of the crossbeam template is supported on the top of the disc buckle support.

[0031] During construction, two sets of additional platform forms are erected and installed simultaneously. After the erection of the two sets of additional platform forms is completed, concrete is poured to obtain two concrete additional platforms. Then, a section of pier body steel bars is tied from bottom to top on the two concrete additional platforms. After the tying is completed, a section of single pier column form is erected and concrete is poured. After the concrete of a section of the pier body has solidified, another section of pier body steel bars and single pier column form is erected upward and concrete is poured. When the single pier column form is erected to the position of the top crossbeam, the crossbeam form is erected simultaneously, and the crossbeam form is supported by a disc buckle support. After the erection is completed, the two single pier columns and the crossbeam at the top are poured simultaneously. After the concrete has solidified, the large-volume special-shaped double-column pier is cured. After the curing is completed, the formwork is removed.

[0032] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A large-volume special-shaped double-column pier formwork applicable to water, characterized in that: It includes two groups of additional platform formworks, double pier column formworks and crossbeam formworks; Each group of additional platform formworks includes a vertically arranged additional platform side formwork and an inclined transition formwork. The additional platform side formworks enclose an annular structure, and the transition formworks enclose a conical ring structure. The opening at the top of the transition formwork is smaller than the opening at its bottom, and the bottom end of the transition formwork is fixedly connected to the top end of the additional platform side formwork; The double pier column formworks include two groups of single pier column formworks. The cross-sections at the bottom and top of the transition formwork and the cross-section of each group of single pier column formworks are all pentagonal structures. The cross-section at the top of the transition formwork is the same in shape and size as the cross-section of each group of single pier column formworks. The bottom end of each group of single pier column formworks is connected to the top end of the corresponding group of additional platform formworks. Each group of single pier column formworks includes a group of longitudinal side formworks, two groups of transverse side formworks, two groups of inclined side formworks and five groups of arc connecting formworks. The inner ends of the two groups of transverse side formworks are respectively connected to both ends of a group of longitudinal side formworks through a corresponding group of arc connecting formworks and are parallel to each other. The outer ends of the two groups of inclined side formworks are connected to each other through a corresponding group of arc connecting formworks to form a V-shaped structure. The inner ends of the two groups of inclined side formworks are respectively connected to the outer ends of the two groups of transverse side formworks through a corresponding group of arc connecting formworks; The two groups of longitudinal side formworks of the two groups of single pier column formworks are vertically opposite to each other. A crossbeam formwork is connected between the two groups of longitudinal side formworks. The crossbeam formwork includes two groups of crossbeam main formworks, a bottom arc formwork, two groups of top docking formworks and two groups of bottom docking formworks. The two groups of crossbeam main formworks both extend horizontally and are parallel to each other. The bottom end face of each group of crossbeam main formworks is an arc concave surface. The two transverse edge parts of a bottom arc formwork are respectively connected to the bottom end faces of the two groups of crossbeam main formworks. The two groups of top docking formworks and the two groups of bottom docking formworks are both vertically arranged and longitudinally extend. The two groups of top docking formworks are respectively in close contact with and fixedly connected to the two groups of longitudinal side formworks. The bottom ends of the two groups of top docking formworks are respectively fixedly connected to the top ends of the two ends of the two groups of crossbeam main formworks. The two groups of bottom docking formworks are respectively in close contact with and fixedly connected to the two groups of longitudinal side formworks. The top ends of the two groups of bottom docking formworks are respectively fixedly connected to the bottom ends of the two ends of the two groups of crossbeam main formworks.

2. The large-volume special-shaped double-column pier formwork applicable to water according to claim 1, characterized in that: In each group of single pier column formworks, each group of longitudinal side formworks, each group of transverse side formworks, each group of inclined side formworks and each group of arc connecting formworks all include multiple vertical formworks. The multiple vertical formworks in each group of longitudinal side formworks, each group of transverse side formworks, each group of inclined side formworks or each group of arc connecting formworks are sequentially spliced and fixed from bottom to top.

3. The large-volume special-shaped double-column pier formwork applicable to water according to claim 1, wherein: Back ribs are connected to the outer surfaces of each group of single pier column formworks. Reinforcing straps are tied around the outer periphery of each group of single pier column formworks. Horizontal tie rods are connected between the inner circles of each group of single pier column formworks and between the two groups of crossbeam main formworks.

4. A large-volume special-shaped double-column pier formwork applicable to water, characterized in that: An ice-breaking edge is connected to the inner surface of each of the five groups of arc-shaped connection templates. Each ice-breaking edge is formed by cross-splicing a plurality of first-type curved-section steel rails and a plurality of second-type curved-section steel rails. The plurality of first-type curved-section steel rails and the plurality of second-type curved-section steel rails all extend vertically. A second-type curved-section steel rail is spliced between two adjacent first-type curved-section steel rails, and a first-type curved-section steel rail is spliced between two adjacent second-type curved-section steel rails. The bottom of the first-type curved-section steel rail is embedded in the bearing platform, and the bottom end of the second-type curved-section steel rail is placed on the top surface of the bearing platform.

5. A large-volume special-shaped double-column pier formwork applicable to water, characterized in that: The tie beam formwork is supported by a disc buckle support. The disc buckle support includes a plurality of vertical columns, a plurality of connecting discs, a plurality of horizontal connecting rods, a plurality of diagonal braces, an adjustable base, and an adjustable bracket. The plurality of vertical columns are arranged in a matrix. The bottom end of each vertical column is connected to the corresponding adjustable base. The plurality of horizontal connecting rods are arranged at different horizontal heights and are connected between adjacent vertical columns. Connecting discs are provided on the plurality of vertical columns. The plurality of diagonal braces are connected to the corresponding connecting discs. The adjustable bracket is connected to the top ends of the plurality of vertical columns. The top surface of the adjustable bracket contacts the bottom surface of the bottom arc-shaped formwork of the tie beam formwork. The two ends of the adjustable bracket are respectively fixedly connected to the outer walls of two groups of longitudinal side formworks.

Images