Single column cantilever cap beam bracket

Abstract

The present application relates to the technical field of bridge construction. The single-column cantilever cap beam bracket provided by the present application includes: a truss, and a hoop and a corbel assembly supporting the truss; the corbel assembly includes at least two corbels, each of which is fixed on the pier column through at least two pins protruding from the two ends of the pier column; the at least two pins are parallel to each other and penetrate the pier column along the bridge direction at a set position of a preset pier column height; the hoop includes an upper hoop and a lower hoop, and the upper hoop and the lower hoop are respectively formed by connecting two half hoops; the truss includes two truss pieces, the two truss pieces are located on both sides of the pier column and are consistent with the extension direction of the cap beam, and each truss piece includes a main truss upper chord and a main truss lower chord, the main truss upper chord is connected to the upper hoop, and the main truss lower chord is connected to the lower hoop. The single-column cantilever cap beam bracket provided by the present application prevents the cap beam from being affected by unbalanced loads.

Description

Technical Field

[0001] The present application relates to the technical field of bridge construction, and in particular, to a single-column cantilever cap beam bracket. Background Art

[0002] In the construction of the bridge cap beam, especially when the cantilever length of the cap beam is much larger than the cross-sectional width of the pier, a conventional temporary installation structure for the cap beam is usually a floor-standing steel pipe bracket. However, when using the floor-standing steel pipe bracket for construction, it is easily affected by unbalanced loads and prone to instability. In addition, the installation and removal of the floor-standing steel pipe bracket is generally carried out in a scattered manner, which has a high safety risk. In addition, during the erection of the floor-standing steel pipe bracket, it is necessary to carry out the docking operation of the steel pipe piles, and at the same time, in order to ensure the stability of the bracket, it is necessary to install a flat scissors brace, which leads to an increase in the amount of material input, a decrease in construction efficiency, and a high difficulty in bracket erection.

[0003] However, the installation method of the single-column cantilever cap beam bracket, in which the cantilever length of the cap beam is much larger than the cross-sectional width of the pier column, requires the use of more materials, and the steel pipe piles need to be docked during the installation process. At the same time, in order to ensure the stability of the bracket, it is necessary to install a flat-jointed scissors brace, which leads to slow erection speed and poor erection and dismantling safety, and it is difficult to meet the current construction requirements for improving safety, high efficiency and energy saving. Summary of the invention

[0004] For cap beam construction projects where the cantilever length of the cap beam is much longer than the horizontal length of the pier column, in order to solve the problem that the conventional ground-mounted steel pipe bracket is easily affected by unbalanced loads and prone to instability, the present application provides a single-column cantilever cap beam bracket and an installation method.

[0005] The single-column cantilever cap beam bracket provided in this application comprises:

[0006] A truss, and a hoop and a corbel assembly supporting the truss;

[0007] The bracket assembly includes at least two brackets, each bracket is fixed to the pier column through at least two pins protruding from the two ends of the pier column, and is used to fix and support the truss; the at least two pins are parallel to each other and penetrate the pier column along the bridge direction at a set position of a preset pier column height;

[0008] The clamp comprises an upper clamp and a lower clamp, and the upper clamp and the lower clamp are respectively formed by butting two half clamps;

[0009] The truss includes two truss plates, which are located on both sides of the pier and are consistent with the extension direction of the cap beam. Each truss plate includes a main truss upper chord and a main truss lower chord. The main truss upper chord is connected to the upper hoop, and the main truss lower chord is connected to the lower hoop.

[0010] In an optional embodiment, the corbels are installed at two ends of the pin rod protruding from the pier, and the truss plates are placed above the corbels.

[0011] In an optional embodiment, each of the corbels comprises a vertical plate, a plurality of vertical plates, a stiffening rib and a supporting plate;

[0012] The vertical plate is detachably connected to the pin rod;

[0013] Each of the vertical plates is located away from the pin rod and perpendicular to the vertical plate along the direction in which the pier is erected, and the stiffening rib is vertically connected between two adjacent vertical plates;

[0014] The supporting plate is vertically fixed on the vertical plate and the vertical plate.

[0015] In an optional embodiment, the single-column cantilever cap beam bracket is characterized in that it further comprises: a drop block;

[0016] The unloading block is placed between the corbel and the truss piece.

[0017] In an optional embodiment, the single-column cantilever cap beam bracket further includes a pin rod steel pipe; the pin rod steel pipe penetrates along the longitudinal direction of the bridge and is pre-buried at a set position at the preset pier column height;

[0018] The pin rod passes through the pin rod steel pipe and is detachably connected thereto.

[0019] In an optional embodiment, the length of the upper chord of the main truss is greater than the length of the cap beam.

[0020] In an optional embodiment, the length of the lower chord of the main truss is greater than the length of the pier in the extension direction of the cap beam, and is less than the length of the upper chord of the main truss.

[0021] In an optional embodiment, the single-column cantilever cap beam bracket further includes a lock;

[0022] The lock buckle is arranged between the contact surface between the upper chord of the main truss and the half hoop of the upper hoop, and / or the contact surface between the lower chord of the main truss and the half hoop of the lower hoop.

[0023] In an optional embodiment, the single-column cantilever cap beam bracket further includes a distribution beam;

[0024] The distribution beam spans over the upper chords of the main trusses arranged on both sides of the pier column to form an operating platform on the pier column.

[0025] In an optional embodiment, the single-column cantilever cap beam bracket further includes: a tie rod;

[0026] At least two of the tie rods are symmetrically and vertically distributed on the two upper chords of the main trusses on both sides of the pier, and the two upper chords of the main trusses are fixedly connected.

[0027] The single-column cantilever cap beam bracket provided in the present application has the following beneficial effects:

[0028] The single-column cantilever cap beam bracket provided in the present application forms a support plane at a preset pier height through pins embedded in the pier and with the ends protruding from the pier to support the truss located above; and the lower hoop, through its connection with the lower chord of the main truss and the connection between the lower chord of the main truss and the upper chord of the main truss, bears the weight of the lower chord of the main truss and other structures of the truss connected to the lower chord of the main truss, as well as the unbalanced bending moment caused by the unbalanced load brought by the truss, thereby ensuring the stability of the single-column cantilever cap beam bracket on the pier.

[0029] In the installation method of the single-column cantilever cap beam bracket provided in the present application, first, in the process of casting the pier, a pin is embedded at a preset pier height, and the two ends of the pin protrude from the pier, so that the pin serves as the supporting point of the entire single-column cantilever cap beam bracket, and by virtue of the characteristic that the pin runs through the pier, the weight of the truss acting on the corbel assembly is transferred to the pier through the pin, thereby improving the stability of the single-column cantilever cap beam bracket on the pier. In addition, the entire truss is divided into two truss pieces, and each truss piece is pre-installed with two upper and lower clamps installed on the same side of the pier, and the truss pieces with pre-installed clamps are successively installed on the supporting components fixed at the ends of the pins on both sides of the pier, thereby greatly reducing the assembly parts of the single-column cantilever cap beam bracket on the pier, in addition to being able to greatly reduce the difficulty of assembling the single-column cantilever cap beam bracket, it can also reduce the risk of construction personnel working at high altitudes.

[0030] Additional aspects and advantages of the present application will be partially given in the following description, which will become obvious from the following description, or will be learned through practice. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The above and / or additional aspects and advantages will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0032] Figure 1 It is an overall schematic diagram of the ground-mounted steel pipe support of a conventional cap beam temporary installation structure;

[0033] Figure 2 A schematic diagram of the overall structure of a single-column cantilever cap beam bracket provided in one embodiment of the present application;

[0034] Figure 3It is a schematic diagram of the planar structure of the plane where the lower chord of the main truss is located provided by an embodiment of the present application;

[0035] Figure 4 It is a schematic diagram of the planar structure of the plane where the upper chord of the main truss is located provided by an embodiment of the present application;

[0036] Figure 5 A schematic structural diagram of a corbel provided in one embodiment of the present application. DETAILED DESCRIPTION

[0037] The present application will be further described below in conjunction with the accompanying drawings and exemplary embodiments, wherein the same reference numerals in the accompanying drawings all refer to the same components. In addition, if the detailed description of the known technology is not necessary for illustrating the features of the present application, it will be omitted.

[0038] The single-column cantilever cap beam bracket provided in the present application is used in the cap beam construction stage during the construction of the bridge. For various cap beam types, the cap beam cantilever length is much larger than the cross-sectional width of the pier 1, especially the single-column cap beam. Since the cross-sectional volume of the cap beam part is much larger than the cross-sectional volume of the pier 1, there will be an unbalanced load problem. Therefore, when using this type of cap beam, a conventional cap beam temporary installation structure is usually adopted as a ground-mounted steel pipe bracket.

[0039] refer to Figure 1 , Figure 1 This is an overall schematic diagram of a conventional ground-mounted steel pipe support for a temporary installation structure of a cap beam.

[0040] However, the floor-standing steel pipe bracket has the following problems:

[0041] (1) Affected by the terrain and surrounding environment: The ground-mounted steel pipe support is suitable for projects on land, with relatively flat terrain and good foundation bearing capacity. Most of these cap beam supports are long strips. If the ground-mounted steel pipe support is erected, the height and width are relatively large. The support as a whole needs to be connected to the pier 1 to ensure the stability of the support;

[0042] (2) The cost of erecting the support is high and the efficiency is low: When the ground-mounted steel pipe support is used to construct the cap beam, a large amount of materials are used for the pier height cap beam. During the erection process, the steel pipe piles need to be connected. At the same time, in order to ensure the stability of the support, it is necessary to install a flat scissors brace, which leads to an increase in material input and a decrease in construction efficiency.

[0043] In order to overcome the existing single-column cantilever cap beam bracket 10 built for cap beam construction where the cantilever length of the cap beam is much larger than the cross-sectional width of the pier 1 , the present application provides a single-column cantilever cap beam bracket 10 .

[0044] refer to Figure 2-4 , Figure 2This is a schematic diagram of the overall structure of a single-column cantilever cap beam bracket provided in one embodiment of the present application. Figure 3 is a schematic diagram of the planar structure of the plane where the lower chord of the main truss is located provided by an embodiment of the present application, Figure 4 It is a schematic diagram of the planar structure of the plane where the upper chord of the main truss is located provided by an embodiment of the present application.

[0045] The single-column cantilever cap beam bracket 10 provided in the present application at least comprises the following structures: a truss 100 , a corbel assembly 200 , a hoop 300 , and the corbel assembly 200 comprises at least two corbels 210 .

[0046] The corbel 210 includes a pin 220 fixedly arranged thereon. Specifically, the corbel assembly 200 is fixed to the end of the pin 220 protruding from the pier 1. In this embodiment, the corbel assembly 200 includes a corbel 210. The pin 220 is arranged at a position of a preset pier height and penetrates the pier 1 along the longitudinal direction of the bridge. The at least two pins 220 are parallel to each other, and a support plane is formed for the truss 100 located above. Both ends of each pin 220 protrude from the pier 1. The protruding ends of at least two pins 220 located on the same side of the pier 1 can form a support plane at the preset pier height of the pier 1 to support the truss 100 located above.

[0047] Therefore, based on the setting of the pin rod 220, the entire truss 100 can be supported at the preset pier height of the pier 1, providing vertical support force for the single-column cantilever cap beam bracket 10, so that the cap beam can be constructed on the single-column cantilever cap beam bracket 10. In this embodiment, two pin rods 220 are installed. The ends of the two pin rods 220 protruding from the pier 1 form a support plane at the preset pier height to support the truss 100 located above.

[0048] The truss 100 is supported on the corbels 210 located on both sides of the pier 1. In this embodiment, the truss 100 includes two parallel truss pieces 101. Each truss piece 101 is located on both sides of the pier 1 and is consistent with the extension direction of the cap beam cantilever, and each is supported on the corbels 210 located on the same side of the pier 1.

[0049] On the basis of the above embodiment, the single-column cantilever cap beam bracket 10 further includes a pin rod steel pipe (not shown). The pin rod steel pipe is vertically extended in the cap beam direction and embedded in a set position of a preset pier height, and the pin rod penetrates the pin rod steel pipe and is detachably connected thereto.

[0050] refer to Figure 5 , Figure 5 A schematic structural diagram of a corbel provided in one embodiment of the present application.

[0051] The corbel 210 includes a vertical plate 211, a plurality of vertical plates 212, a stiffening rib 213 and a support plate 214. The vertical plate 211 is detachably connected to the pin rod 220. Each of the vertical plates 212 is located on a side away from the pin rod 220 and is perpendicular to the vertical plate 211 along the direction in which the pier is erected, and the stiffening rib 213 is vertically connected between two adjacent vertical plates 212. The support plate 214 is vertically fixed on the vertical plate 211 and the vertical plate 212. The support plate 214 serves as a supporting plane perpendicular to the pier 1 to fix and support the truss sheet on the same side. Two mutually symmetrical through holes 215 are set on the vertical plate 211, and the pin rod 220 can fix the corbel 210 on the pier 1 through the through holes 215.

[0052] Nuts are provided at both ends of the pin rod 220. The two ends of the pin rod 220 pass through two mutually symmetrical through holes 215 of the vertical plate 211 respectively, and then the corbel 210 on the corresponding side is fixed to the set position of the preset pier height of the pier 1 by using the nuts.

[0053] Each truss piece 101 includes a main truss upper chord 110 and a main truss lower chord 120 which are consistent with the extension direction of the cap beam. The main truss upper chord 110 is located above the main truss lower chord 120. Figure 1 In this embodiment, the length of the main truss upper chord 110 is greater than the length of the cap beam. The length of the main truss lower chord 120 is greater than the length of the pier 10 in the extension direction of the cap beam, and less than the length of the main truss upper chord 110. In order to ensure the moment balance of the single-column cantilever cap beam bracket 10, the center lines of each truss piece 101 perpendicular to the main truss upper chord 110 and the main truss lower chord 120 coincide, and the center lines of the two truss pieces 101 are on the same plane as the center line of the pier 10 in the vertical direction.

[0054] refer to Figure 2 The main truss lower chord 120 is fixed on the corbel assembly 200. The two main truss lower chords 120 supported on the corbel assembly 200 on both sides of the pier 1 are parallel to each other and form a supporting surface perpendicular to the height direction of the pier, such as Figure 3 shown.

[0055] refer to Figure 4 The main truss upper chord 110 can be supported by a connecting member directly above the main truss lower chord 120, thereby forming a truss piece 101. The main truss upper chords 110 of the two truss pieces 101 located on both sides of the pier 1 are supported on the pier 1 and are parallel to each other, forming an operating plane perpendicular to the pier 1.

[0056] The clamp 300 includes an upper clamp 320 and a lower clamp 310, and each of the upper clamp 320 and the lower clamp 310 includes two half clamps arranged opposite to each other. Figure 3The half clamps 311 and 312, and Figure 4 The half clamps 321 and 322 in the embodiment.

[0057] A half hoop is fixed to the middle position of each main truss upper chord 110 and main truss lower chord 120 provided above. Fixed to the main truss lower chord 120 are half hoops 311 and 312, and fixed to the main truss upper chord 110 are half hoops 321 and 322. The above-mentioned half hoop is installed on the side of the corresponding main truss upper chord 110 or main truss lower chord 120 close to the pier 1, and the shape of the half hoop corresponds to the contour of the installation side of the respective pier 1, so that the truss piece 101 can help improve the stability of the single-column cantilever cap beam bracket 10 on the pier 1 by increasing the contact area between the half hoop and the pier 1.

[0058] The main truss lower chords 120 of the two truss pieces 101 are located at the same preset pier height, and the two half hoops provided on the side of each main truss lower chord 120 close to the pier 1 are butt-jointed, that is, the opposite ends of the two half hoops can be butt-jointed, that is, the corresponding ends of the half hoops 311 and 312 are butt-jointed in pairs. Similarly, the main truss upper chords 110 of the two truss pieces 101 are located at the upper position of the preset pier height, and the two half hoops provided on the side of each main truss upper chord 110 close to the pier 1 are butt-jointed, that is, the opposite ends of the two half hoops can be butt-jointed, that is, the corresponding ends of the half hoops 321 and 322 are butt-jointed in pairs.

[0059] In addition, based on the above embodiment, the single-column cantilever cap beam bracket 10 also includes a lock 340 .

[0060] A lock 340 is provided between the contact surface between the upper chord 110 of the main truss and the half hoops 321 and 322 of the upper hoop 320, and / or between the contact surface between the lower chord 120 of the main truss and the half hoops 311 and 312 of the lower hoop 310. Figure 3 As shown in or 4, for the same half hoop, the upper chord 110 of the main truss and the half hoops 321 and 322 of the upper hoop 320, or the lower chord 120 of the main truss and the half hoops 311 and 312 of the lower hoop 310 can be fixed by two lock buckles 340 distributed at both ends of the contact surface between the upper chord 110 of the main truss and the half hoops 321 and 322 of the upper hoop 320, or the lower chord 120 of the main truss and the half hoops 311 and 312 of the lower hoop 310.

[0061] In the present application, both ends of each half hoop are provided with docking components, such as Figure 3 , 4The triangular fixing seat 330 is formed by merging the ends of the two butted half hoops. The triangular fixing seats 330 of the two butted half hoops are correspondingly arranged, and are correspondingly penetrated with through holes of the fixing components (not shown). In this embodiment, the fixing components are used to fix and lock the bolts of the butted half hoops.

[0062] In the present application, the ends of each of the two butted half hoops can be fixed by bolts, so as to form an embracing structure on the pier 1 through the hoop 300 , thereby improving the stability of the truss 100 fixed on the hoop 300 .

[0063] Each truss sheet 101 mentioned in the above embodiment and the half hoop fixed on the main truss upper chord 110 and the main truss lower chord 120 form a main truss. The main truss can be pre-installed on the ground and then hoisted onto the corbel assembly 200. The single-column cantilever cap beam bracket 10 provided in this embodiment includes two main trusses respectively arranged on both sides of the pier 1. The two main trusses are parallel to each other and are symmetrical structures about the pier 1 to prevent the cap beam from being affected by unbalanced loads.

[0064] The two main trusses are fixed by connecting the upper clamp 320 and the lower clamp 310 with their respective half clamps, so as to achieve the stability of the single-column cantilever cap beam bracket 10 on the pier 1.

[0065] In addition to the corbels 210 supporting the trusses 100, the corbel assembly 200 also includes a removal block 400. The removal block 400 is placed between the corbels 210 and the trusses 100. During construction, after the corbels 210 are fixed on the pins 220, the removal block 400 is fixed on each corbel 210, and then the trusses 100 are constructed on the removal block 400, so that the removal block 400 can be used to provide a removal space for the disassembled trusses 100 in the subsequent process, so as to simplify the disassembly operation.

[0066] Each truss piece 101 provided in the above embodiment and located on both sides of the pier 1 is mirror-symmetrical. Each truss piece 101 also includes a plurality of main truss webs 130. For a truss piece 101, the main truss web 130 is connected between the main truss upper chord 110 and the main truss lower chord 120, and the three are located on the same plane to form a sheet-like structure, standing on both sides of the pier 1. The truss 100 is a truss 100 framework. In the same truss piece 101, the plurality of main truss webs 130 include a plurality of pairs of main truss webs 130 that are symmetrical about the center line of the truss piece 101. For a truss piece 101, the center line is located in the middle of the two corbels 210 and is perpendicular to the main truss upper chord 110 or the main truss lower chord 120. In order to conveniently distinguish each pair of main truss webs 130, as shown Figure 2As shown, the main truss web members 130 on one side of each pair of main truss web members 130 symmetrical about the center line of the truss piece 101 are marked as F1, F2, and F4. Among them, the main truss web members F1 are parallel to each other, and are located directly above the corbel 210 and are the innermost pair of main truss web members 130. The main truss web member F3 is parallel to the main truss web member F1, and the two ends of the main truss web member F2 are respectively connected to one end of the main truss web member F1 connected to the main truss upper chord 110 and one end of the main truss web member F3 connected to the main truss lower chord 120. One end of the main truss web member F4 and the main truss lower chord 120 are connected at the connection point K1 of the main truss web member F2 and the main truss web member F3 at the main truss lower chord 120, and the other end of the main truss web member F4 and the main truss upper chord 110 is inclined toward the two ends of the main truss upper chord 110.

[0067] For the above-mentioned truss 100 structure, the pressure of the main truss upper chord 110 located above it on the main truss lower chord 120 is concentrated at the middle part of the main truss lower chord 120 through multiple pairs of main truss webs 130, and is transmitted to the pier 1 through the lower clamp 310 connected to the main truss lower chord 120, thereby increasing the force between the entire truss 100 and the pier 1, so that the entire truss 100 is stabilized at the preset pier height of the pier 1.

[0068] In addition, in the present embodiment, tie rods 140 are respectively arranged perpendicular to the main truss upper chord 110 and the main truss lower chord 120 to fix the main truss upper chord 110 or the main truss lower chord 120 on both sides. Specifically, the connection point K2 between the first tie rod 141 and the main truss upper chord 110, and the connection point K1 between the second tie rod 142 and the main truss lower chord 120 are simultaneously used as tie rod holes. A pair of tie rods are respectively arranged between the main truss upper chord 110 or the main truss lower chord 120 on both sides of the pier 1. In order to distinguish, the tie rods connected to the two main truss upper chords 110 are defined as the first tie rods 141, and the tie rods connected to the two main truss lower chords 120 are defined as the second tie rods 142. In this embodiment, the first tension rod 141 is connected to the connection point K2 between the main truss web F4 and the main truss upper chord 110 , and the second tension rod 142 is connected to the connection point K1 between the main truss webs F2 , F3 , F4 and the main truss lower chord 120 .

[0069] The first tie rod 141 and the second tie rod 142 are fixedly connected to the main truss upper chord 110 and the main truss lower chord 120 through their respective tie rod holes. The truss pieces 101 located on both sides of the pier 1 are connected to the main truss upper chord 110 and the main truss lower chord 120 to form a single-column cantilever cap beam bracket 10 locked on the pier 1. The weight of the single-column cantilever cap beam bracket 10 is centrally fixed to the pier 1 position of the lower clamp 310 through the tie rod and the above-mentioned truss 100 structure. In this embodiment, the second tie rod 142 is a locking tie rod, so that the force of the main truss webs F2, F3, F4 and the main truss upper chord 110 on the main truss lower chord 120 can be adjusted by the second tie rod 142.

[0070] A plurality of distribution beams 150 are also provided on the main truss upper chord 110 located on both sides of the pier 1. The distribution beams 150 are evenly distributed on both sides of the center line of the truss sheet 101 and are perpendicular to the main truss upper chord 110. The plurality of distribution beams 150 form an operating platform 500 on the main truss upper chord 110, so that construction personnel or construction equipment can perform construction operations of the cap beam on the operating platform 500. In this embodiment, a wire mesh 510 is also laid on the distribution beam 150 to ensure the safety of the construction personnel.

[0071] Furthermore, among the plurality of distribution beams 150, connecting rods are provided between each preset number of distribution beams 150 to form an operation platform 500 module. The operation platform 500 module can be pre-processed so as to reduce the fixing construction operation of the distribution beam 150 on the main truss upper chord 110, so as to save the time of high-altitude operation and reduce the difficulty of high-altitude operation, so as to reduce the risk of high-altitude operation. More preferably, the same number of operation platform 500 modules can be provided on both sides of the upper chords 110 of the two main trusses to ensure that the forces at both ends of the upper chords 110 of the main trusses are roughly the same, so as to balance the forces at both ends.

[0072] In this embodiment, the lower clamp 310 is arranged on the inner side of the lower chords 120 of the two main trusses, and the two half clamps 311 and 312 thereof are butt-jointed and locked; similarly, the upper clamp 320 is arranged on the inner side of the upper chords 110 of the two main trusses, and the two half clamps 321 and 322 thereof are butt-jointed and locked, so as to form two embracing structures distributed along the pier 1 on the pier 1. The upper clamp 320 can fix the upper chords 110 of the main trusses connected thereto and located on both sides of the pier 1 to the pier 1. The lower clamp 310, through its connection with the lower chord 120 of the main truss and the connection between the lower chord 120 of the main truss and the upper chord 110 of the main truss through the main truss web 130, bears the weight of the lower chord 120 of the main truss and other structures of the truss 100 connected to the lower chord 120 of the main truss, as well as the unbalanced bending moment caused by the unbalanced load brought by the truss 100, thereby ensuring the stability of the single-column cantilever cap beam bracket 10 on the pier 1.

[0073] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of disclosure involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above disclosed concept. For example, the above features are replaced with the technical features with similar functions disclosed in this application (but not limited to) by each other to form a technical solution.

Claims

1. A single-column cantilever cap beam bracket, characterized in that: include: A truss, and a hoop and a corbel assembly supporting the truss; The bracket assembly includes at least two brackets, each bracket is fixed to the pier column through at least two pins protruding from the two ends of the pier column, and is used to fix and support the truss; the at least two pins are parallel to each other and penetrate the pier column along the bridge direction at a set position of a preset pier column height; The clamp comprises an upper clamp and a lower clamp, and the upper clamp and the lower clamp are respectively formed by butting two half clamps; The truss includes two truss plates, which are located on both sides of the pier and are consistent with the extension direction of the cap beam. Each truss plate includes a main truss upper chord and a main truss lower chord. The main truss upper chord is connected to the upper hoop, and the main truss lower chord is connected to the lower hoop.

2. The single-column cantilever cap beam bracket according to claim 1, characterized in that: The corbels are installed at two ends of the pin rod protruding from the pier, and the truss pieces are placed above the corbels.

3. The single-column cantilever cap beam bracket according to claim 2, characterized in that: Each of the corbels comprises a vertical plate, a plurality of vertical plates, stiffening ribs and a supporting plate; The vertical plate is detachably connected to the pin rod; Each of the vertical plates is located away from the pin rod and perpendicular to the vertical plate along the direction in which the pier is erected, and the stiffening rib is vertically connected between two adjacent vertical plates; The supporting plate is vertically fixed on the vertical plate and the vertical plate.

4. The single-column cantilever cap beam bracket according to claim 2, characterized in that: Also includes: Unloading blocks; The unloading block is placed between the corbel and the truss piece.

5. The single-column cantilever cap beam bracket according to claim 1, characterized in that: It also includes a pin rod steel pipe; the pin rod steel pipe penetrates along the bridge direction and is pre-buried at a set position at the preset pier height; The pin rod passes through the pin rod steel pipe and is detachably connected thereto.

6. The single-column cantilever cap beam bracket according to claim 1, characterized in that: The length of the upper chord of the main truss is greater than the length of the cap beam.

7. The single-column cantilever cap beam bracket according to claim 1, characterized in that: The length of the lower chord of the main truss is greater than the length of the pier in the extension direction of the cap beam, and is less than the length of the upper chord of the main truss.

8. The single-column cantilever cap beam bracket according to claim 1, characterized in that: It also includes a lock; The lock buckle is arranged between the contact surface between the upper chord of the main truss and the half hoop of the upper hoop, and / or the contact surface between the lower chord of the main truss and the half hoop of the lower hoop.

9. The single-column cantilever cap beam bracket according to claim 1, characterized in that: Also included are distribution beams; The distribution beam spans over the upper chords of the main trusses arranged on both sides of the pier column to form an operating platform on the pier column.

10. The single-column cantilever cap beam bracket according to claim 4, characterized in that: Also includes: Tie rod; At least two of the tie rods are symmetrically and vertically distributed on the two upper chords of the main trusses on both sides of the pier, and the two upper chords of the main trusses are fixedly connected.

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