Connection structure between bridge tower and abutment

Abstract

The present application relates to a connection structure between a bridge tower and a cap, including a cap, a tower base, a bridge tower, a ring rib, a vertical rib, a shear nail, a erection steel bar and a perforated steel bar. A plurality of positioning brackets are arranged in the cap, the tower base is arranged at one end of the cap, the bridge tower includes an outer shell and an inner shell, one end of the outer shell and one end of the inner shell are inserted into the cap and the tower base and connected to the positioning bracket, the ring rib, the vertical rib and the shear nail are respectively arranged on the inner and outer sides of the outer shell and the inner shell, the extension direction of the ring rib is perpendicular to the longitudinal extension direction of the bridge tower, and the longitudinal extension direction of the vertical rib is parallel to the longitudinal extension direction of the bridge tower; the erection steel bar is respectively arranged on the inner and outer sides of the outer shell and the inner shell, and is spaced apart from the outer shell and the inner shell, a plurality of first through holes are arranged on the outer shell and the inner shell, the perforated steel bar is inserted into the first through holes, and the two ends of the perforated steel bar are respectively connected to the erection steel bar. The connection structure between the bridge tower and the cap has a simple structure, low construction difficulty and high positioning accuracy of the bridge tower.

Description

Technical Field

[0001] The present application relates to the technical field of bridges, and in particular to a connection structure between a bridge tower and a cap. Background Art

[0002] At present, steel shell composite bridge towers are increasingly being used in cable-stayed bridges due to their convenient construction and beautiful appearance. Specifically, the steel shell composite tower includes an outer steel shell, an inner steel shell, and concrete poured between the inner and outer steel shells. In such bridge towers, a cap is usually set at the bottom to transfer the load on the bridge tower. The cap is a reinforced concrete platform. In the related art, the bridge tower and the cap are usually connected by a concrete connection structure arranged between the two.

[0003] However, in the related art, there are problems such as complex connection structure between steel shell composite bridge tower and abutment, great construction difficulty, and low positioning accuracy of bridge tower. Summary of the invention

[0004] Based on this, it is necessary to provide a connection structure between the bridge tower and the pedestal that simplifies the structure, reduces the construction difficulty and improves the positioning accuracy of the bridge tower in order to address the problems of complex connection structure between the bridge tower and the pedestal, great construction difficulty and low positioning accuracy of the bridge tower in related technologies.

[0005] According to one aspect of the present application, a connection structure between a bridge tower and a cap is provided, comprising:

[0006] A support platform, wherein a plurality of positioning brackets are arranged inside the support platform;

[0007] A tower base is arranged at one end of the support platform;

[0008] A bridge tower, comprising an outer shell and an inner shell arranged in the outer shell, one end of the outer shell and one end of the inner shell are inserted into the support platform and the tower base, and one end of the outer shell and the inner shell inserted into the support platform is connected to the positioning bracket;

[0009] A plurality of ring ribs, a plurality of vertical ribs and a plurality of shear nails are respectively arranged on the inner and outer sides of the outer shell and the inner shell, the extension direction of the ring ribs is perpendicular to the longitudinal extension direction of the bridge tower, and the longitudinal extension direction of the vertical ribs is parallel to the longitudinal extension direction of the bridge tower;

[0010] The frame steel bars and the perforated steel bars are arranged in the tower base. The frame steel bars are respectively arranged on the inner and outer sides of the outer shell and the inner shell, and are spaced apart from the outer shell and the inner shell. The outer shell and the inner shell are provided with a plurality of first through holes. The perforated steel bars are correspondingly penetrated through the first through holes one by one, and the two ends of the perforated steel bars are respectively connected to the frame steel bars.

[0011] The connection structure between the bridge tower and the pedestal is provided with an outer shell and an inner shell so that concrete can be poured between the outer shell and the inner shell, thereby making the bridge tower have high tensile strength, good plasticity and good compressive resistance. Since the pedestal and the tower base are both formed by pouring concrete, by setting one end of the outer shell and one end of the inner shell to penetrate into the pedestal and the tower base, the bridge tower and the concrete are subjected to force in coordination, the bearing capacity of the bridge tower is improved, and the stability of the connection structure between the bridge tower and the pedestal is improved. By setting a plurality of positioning brackets in the pedestal, the positioning accuracy of the outer shell and the inner shell connected to the positioning brackets is improved, so that the position of the bridge tower is accurate. By setting a plurality of ring ribs and a plurality of vertical ribs on the inner and outer sides of the outer shell and the inner shell, the structural strength of the outer shell and the inner shell is increased. By setting a plurality of shear nails on the inner and outer sides of the outer shell and the inner shell, the shear force between the outer shell, the inner shell and the concrete is resisted, so that the outer shell, the inner shell and the concrete are subjected to force in coordination as a whole. By setting the erected steel bars, the perforated steel bars can be fixed in the correct position, and the perforated steel bars and the erected steel bars together form a steel mesh, further increasing the integrity of the outer shell, the inner shell and the concrete, so that the load borne by the bridge tower can be smoothly transmitted to the tower base and the pedestal connected to the tower base, thereby improving the force transmission performance between the bridge tower and the pedestal. Therefore, the connection structure between the bridge tower and the pedestal is provided by arranging the pedestal, the tower base, the bridge tower, multiple ring ribs, multiple vertical ribs, multiple shear nails, erected steel bars and perforated steel bars, thereby improving the structural strength of the bridge tower and the connection reliability and force transmission performance between the pedestal and the tower base, and by setting the positioning bracket, the positioning accuracy of the bridge tower in the pedestal is improved. In addition, the connection structure between the bridge tower and the pedestal does not need to adopt a concrete connection structure, so that the structure is simple and the construction difficulty is reduced.

[0012] In one embodiment, the outer shell includes a support platform section located inside the support platform, one end of the support platform section is connected to the positioning bracket, and the support platform section is provided with a hollow area.

[0013] In one embodiment, the cap section is further provided with a cap reinforcement passage hole.

[0014] In one embodiment, a plurality of second through holes are provided on the ring rib;

[0015] The connection structure between the bridge tower and the pedestal further includes a plurality of vertical rib steel bars, and the vertical rib steel bars are passed through the second through holes.

[0016] In one embodiment, a plurality of third through holes are provided on the vertical rib;

[0017] The connection structure between the bridge tower and the abutment further includes a plurality of annular rib steel bars, and the annular rib steel bars are passed through the third through holes.

[0018] In one embodiment, the vertical rib extends from one end close to the positioning bracket to one end of the outer shell connected to the positioning bracket.

[0019] In one embodiment, the positioning bracket includes a column and a plurality of diagonal braces;

[0020] The longitudinal extension direction of the column is parallel to the longitudinal extension direction of the bridge tower, one end of the column is connected to the outer shell or the inner shell, and one end of the diagonal brace is connected to the side wall of the column.

[0021] In one embodiment, a plurality of the diagonal braces are respectively connected to side walls on different sides of the column.

[0022] In one embodiment, a top plate is provided at one end of the positioning bracket connected to the outer shell or the inner shell;

[0023] A positioning plate is provided at one end of the outer shell and the inner shell connected to the positioning bracket, and the positioning plate is connected to the positioning bracket in a one-to-one correspondence.

[0024] In one embodiment, a bottom plate is provided at one end of the positioning bracket away from the bridge tower;

[0025] A plurality of fasteners are also provided in the support platform, and the fasteners are connected to the base plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a structural schematic diagram of the connection structure between the bridge tower and the cap in one embodiment of the present application;

[0027] Figure 2 for Figure 1 A plan view of the bridge tower and the positioning bracket in the illustrated embodiment;

[0028] Figure 3 A partial cross-sectional view of a bridge tower in one embodiment of the present application;

[0029] Figure 4 A partial cross-sectional view of a bridge tower in another embodiment of the present application;

[0030] Figure 5 This is a schematic diagram of assembling erected steel bars, perforated steel bars and bridge towers in one embodiment of the present application;

[0031] Figure 6 This is a partial schematic diagram of an outer shell in one embodiment of the present application;

[0032] Figure 7 for Figure 2 AA section view of the positioning steel frame in the illustrated embodiment;

[0033] Figure 8 for Figure 2 BB section view of the positioning steel frame in the illustrated embodiment;

[0034] Fig. 9 It is a plan view of a bridge tower in one embodiment of the present application.

[0035] In the figure: 10, pedestal; 12, positioning bracket; 13, column; 14, diagonal brace; 15, top plate; 16, bottom plate; 17, fastener; 20, tower base; 30, bridge tower; 31, first through hole; 32, outer shell; 33, pedestal section; 330, hollow area; 332, pedestal reinforcement hole; 34, inner shell; 35, positioning plate; 40, ring rib; 42, second through hole; 50, vertical rib; 60, shear nail; 70, erection reinforcement; 80, perforated reinforcement. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0037] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0039] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0040] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0041] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0042] Figure 1 This is a structural schematic diagram of the connection structure between the bridge tower and the cap in one embodiment of the present application; Figure 2 for Figure 1 A plan view of the bridge tower and the positioning bracket in the illustrated embodiment; Figure 3 A partial cross-sectional view of a bridge tower in one embodiment of the present application; Figure 4 A partial cross-sectional view of a bridge tower in another embodiment of the present application; Figure 5 This is a schematic diagram of assembling erected steel bars, perforated steel bars and bridge towers in one embodiment of the present application; Figure 6 It is a partial schematic diagram of an outer shell in one embodiment of the present application.

[0043] See also Figure 1-6 The connection structure between the bridge tower and the pedestal provided in one embodiment of the present application includes a pedestal 10, a tower base 20, a bridge tower 30, a plurality of ring ribs 40, a plurality of vertical ribs 50, a plurality of shear nails 60, erection steel bars 70 and perforated steel bars 80.

[0044] Combination Figure 1 and Figure 2 As shown, a plurality of positioning brackets 12 are arranged in the support platform 10, a tower base 20 is arranged at one end of the support platform 10, and a bridge tower 30 includes an outer shell 32 and an inner shell 34 arranged in the outer shell 32, one end of the outer shell 32 and one end of the inner shell 34 are inserted into the support platform 10 and the tower base 20, and one end of the outer shell 32 and the inner shell 34 inserted into the support platform 10 is connected to the positioning bracket 12. Figure 3 and Figure 4 As shown, a plurality of annular ribs 40, a plurality of vertical ribs 50 and a plurality of shear studs 60 are respectively arranged on the inner and outer sides of the outer shell 32 and the inner shell 34, the extending direction of the annular ribs 40 is perpendicular to the longitudinal extending direction of the bridge tower 30, and the longitudinal extending direction of the vertical ribs 50 is parallel to the longitudinal extending direction of the bridge tower 30. Figure 5 As shown, the erection steel bars 70 and the perforated steel bars 80 are arranged in the tower base 20, and the erection steel bars 70 are respectively arranged on the inner and outer sides of the outer shell 32 and the inner shell 34, and are spaced apart from the outer shell 32 and the inner shell 34. Figure 6 As shown, a plurality of first through holes 31 are provided on the outer shell 32 and the inner shell 34 , and the perforated steel bars 80 are correspondingly provided through the first through holes 31 , and both ends of the perforated steel bars 80 are respectively connected to the stand steel bars 70 .

[0045] The connection structure between the bridge tower and the pedestal is provided by providing the bridge tower 30 with an outer shell 32 and an inner shell 34 provided in the outer shell 32, so that concrete can be poured between the outer shell 32 and the inner shell 34, so that the bridge tower 30 has the advantages of high tensile strength and good plasticity of steel and good compressive performance of concrete, saving steel and improving the seismic performance of the bridge tower 30. It should be noted that the pedestal 10 and the tower base 20 are both formed by pouring concrete, and by providing one end of the outer shell 32 and one end of the inner shell 34 to penetrate into the pedestal 10 and the tower base 20, the bridge tower 30 and the concrete are subjected to force in coordination, the force bearing performance of the bridge tower 30 is improved, and the stability of the connection structure between the bridge tower and the pedestal is improved.

[0046] By arranging a plurality of positioning brackets 12 in the cap 10, the outer shell 32 and the inner shell 34 are connected to the positioning brackets 12, so that the positioning brackets 12 can be accurately positioned in the cap 10 by adjusting the positions of the positioning brackets 12, thereby improving the positioning accuracy of the outer shell 32 and the inner shell 34 connected to the positioning brackets 12, and making the position of the bridge tower 30 accurate. It should be noted that since the cap 10 is formed by pouring concrete, in the actual assembly process, before pouring the concrete used to form the cap 10, the positioning brackets 12 are first installed, and the positioning brackets 12 are ensured to be accurately positioned, and then part of the concrete used to form the cap 10 is poured to fix the positioning brackets 12 in the concrete, and then the bridge tower 30 is hoisted to connect the outer shell 32 and the inner shell 34 to the corresponding positioning brackets 12. Since the position of the positioning brackets 12 is easier to measure and adjust than the positions of the outer shell 32 and the inner shell 34, the positioning brackets 12 are arranged to make the outer shell 32 and the inner shell 34 easy to position, thereby improving the positioning accuracy of the bridge tower 30.

[0047] By respectively arranging a plurality of ring ribs 40 and a plurality of vertical ribs 50 on the inner and outer sides of the outer shell 32 and the inner shell 34, the structural strength of the outer shell 32 and the inner shell 34 is increased. By respectively arranging a plurality of shear nails 60 on the inner and outer sides of the outer shell 32 and the inner shell 34, the shear force between the outer shell 32, the inner shell 34 and the concrete is resisted, so that the outer shell 32, the inner shell 34 and the concrete are subjected to force in a coordinated manner as a whole. By arranging the erection steel bars 70, the perforated steel bars 80 can be fixed in the correct position, and the perforated steel bars 80 and the erection steel bars 70 form a steel mesh, further increasing the integrity of the outer shell 32, the inner shell 34 and the concrete, so that the load borne by the bridge tower 30 can be smoothly transmitted to the tower base 20 and the cap 10 connected to the tower base 20.

[0048] Therefore, the connection structure between the bridge tower and the abutment is provided with the abutment 10, the tower base 20, the bridge tower 30, a plurality of ring ribs 40, a plurality of vertical ribs 50, a plurality of shear nails 60, the erection steel bars 70 and the perforated steel bars 80, thereby improving the structural strength of the bridge tower 30 and the connection reliability and force transmission performance between the bridge tower 30 and the abutment 10, and improving the positioning accuracy of the bridge tower 30 in the abutment 10. In addition, the connection structure between the bridge tower and the abutment does not need to adopt a concrete connection structure, so that the structure is simple and the construction difficulty is reduced.

[0049] Furthermore, the outer shell 32, the inner shell 34 and the positioning bracket 12 are all made of steel. Therefore, by setting the positioning bracket 12, the outer shell 32, the inner shell 34 and the positioning bracket 12 form a whole body to bear force together, thereby increasing the anchorage length of the outer shell 32 and the inner shell 34 in the cap 10. Among them, the anchorage length refers to the length of the stress-bearing steel bars of the component wrapped in concrete. Therefore, by setting the positioning bracket 12, the anchorage length of the outer shell 32 and the inner shell 34 is increased, thereby strengthening the connection between the bridge tower 30 and the concrete used to form the cap 10, so that the bridge tower 30 and the cap 10 can work together to bear greater stress, making the connection structure between the bridge tower and the cap more stable.

[0050] In some embodiments, Figure 1 and Figure 6 As shown, the outer shell 32 includes a cap section 33 located in the cap 10, one end of the cap section 33 is connected to the positioning bracket 12, and the cap section 33 is provided with a hollow area 330. It should be noted that the cap 10 is formed by cap steel bars and concrete. By providing the hollow area 330, most of the cap steel bars can be passed through the hollow area 330, so that the cap steel bars can be kept continuous, and the concrete inside and outside the outer shell 32 can flow with each other when pouring concrete, thereby ensuring the integrity of the cap 10 and making the cap 10 and the bridge tower 30 form an integral coordinated force.

[0051] Furthermore, if Figure 6 As shown, the cap section 33 is also provided with a cap steel bar through hole 332, which is used for another part of the cap steel bar that is not in the hollow area 330 to pass through the cap steel bar through hole 332, so as to further improve the continuity of the cap steel bar, so that the cap 10 (see Figure 1 ) and the integrity of the bridge tower 30 is further improved.

[0052] In some embodiments, Figure 3 As shown, the ring rib 40 is provided with a plurality of second through holes 42, and the connection structure between the bridge tower and the abutment further includes a plurality of vertical rib steel bars, which are passed through the second through holes 42. Thus, by providing the vertical rib steel bars passed through the second through holes 42, the ring rib 40 and the vertical rib steel bars together form a PBL shear key to resist the shear force between the outer shell 32, the inner shell 34 and the concrete, and prevent slippage between the steel structure and the concrete, thereby strengthening the connection between the outer shell 32 and the inner shell 34 and the concrete, and further improving the force performance of the bridge tower 30.

[0053] In some embodiments, a plurality of third through holes are provided on the vertical rib 50, and the connection structure between the bridge tower and the abutment further includes a plurality of annular rib steel bars, which are passed through the third through holes. In this way, by providing the annular rib steel bars, the annular rib steel bars and the vertical rib 50 form a PBL shear key to further resist the shear force between the outer shell 32, the inner shell 34 and the concrete, so that the concrete and the outer shell 32 and the inner shell 34 are subjected to force in coordination.

[0054] Furthermore, if Figure 6 As shown, one end of the vertical rib 50 close to the positioning bracket 12 extends to the end of the outer shell 32 connected to the positioning bracket 12, so that the connection between the end of the outer shell 32 extending into the pedestal 10 and the concrete is further strengthened, thereby improving the integrity of the pedestal 10 and the outer shell 32, and making the force transmission effect from the bridge tower 30 to the pedestal 10 better.

[0055] The connection structure between the bridge tower and the abutment is formed by setting annular ribs 40, vertical rib steel bars, vertical ribs 50 and annular rib steel bars to form PBL shear keys, which work together with the erection steel bars 70 and the perforated steel bars 80 to strengthen the connection between the outer shell 32, the inner shell 34 and the concrete, make the connection structure between the bridge tower 30, the tower base 20 and the abutment 10 more stable, and the bridge tower 30 to the tower base 20 and the abutment 10 The force transmission is smoother.

[0056] Figure 7 for Figure 2 AA section view of the positioning steel frame in the illustrated embodiment; Figure 8 for Figure 2 BB section view of the positioning steel frame in the illustrated embodiment;

[0057] In some embodiments, such as Figure 1 and Figure 7-8 As shown, the positioning bracket 12 includes a column 13 and a plurality of diagonal braces 14, the longitudinal extension direction of the column 13 is parallel to the longitudinal extension direction of the bridge tower 30, one end of the column 13 is connected to the outer shell 32 or the inner shell 34, and one end of the diagonal brace 14 is connected to the side wall of the column 13. In this way, since the bridge tower 30 transfers its load to the positioning bracket 12, by setting the longitudinal extension direction of the column 13 to be parallel to the longitudinal extension direction of the bridge tower 30, the load that the column 13 can bear is increased, thereby increasing the bearing capacity of the positioning bracket 12. By setting a plurality of diagonal braces 14, the diagonal braces 14 and the column 13 share the load transferred by the bridge tower 30, further increasing the reliability of the positioning bracket 12. It can be understood that since one end of the diagonal brace 14 is connected to the fastener 17 through the base plate 16, the longitudinal extension direction of the diagonal brace 14 forms a certain angle with the longitudinal extension direction of the column 13, that is, each diagonal brace 14 and the column 13 define a triangle, thereby improving the stability of the structure of the positioning bracket 12 itself and preventing the positioning bracket 12 from deformation or breakage.

[0058] Furthermore, the radial dimension of the column 13 is greater than the radial dimension of the diagonal brace 14 so that the column 13 can bear a greater load.

[0059] Optionally, the columns 13 and the diagonal braces 14 may be made of profiled steel.

[0060] In some embodiments, a plurality of diagonal braces 14 are respectively connected to the side walls on different sides of the column 13 , so that the diagonal braces 14 on different sides of the column 13 can share the forces from different directions exerted on the positioning bracket 12 , thereby improving the structural stability of the positioning bracket 12 .

[0061] In some embodiments, the number of the diagonal braces 14 is at least three.

[0062] Fig. 9 It is a plan view of a bridge tower in one embodiment of the present application.

[0063] In order to facilitate accurate docking of the positioning bracket 12 with the outer shell 32 and the inner shell 34, in some embodiments, such as Figure 7-9 As shown, a top plate 15 is provided at one end of the positioning bracket 12 connected to the outer shell 32 or the inner shell 34, and a positioning plate 35 is provided at one end of the outer shell 32 and the inner shell 34 connected to the positioning bracket 12, and the positioning plates 35 are connected to the positioning bracket 12 in a one-to-one correspondence. In this way, by providing the top plate 15 and the positioning plates 35, the bridge tower 30 is connected to the top plate 15 through the positioning plates 35, and the top plate 15 is used to determine the position to be installed of the positioning plates 35, so that the positioning plates 35 are easy to accurately dock with the positioning bracket 12, and the positioning accuracy of the bridge tower 30 is further improved.

[0064] Specifically, the top plate 15 is disposed at one end of the column 13 connected to the outer shell 32 or the inner shell 34 .

[0065] Optionally, the top plate 15 and the positioning plate 35 may be connected by welding or bolts. In other embodiments, the top plate 15 and the positioning plate 35 may also be connected in other ways, as long as the top plate 15 and the positioning plate 35 can be reliably connected, which is not limited here.

[0066] In some embodiments, such as Figure 1 and Figure 7-8As shown, a bottom plate 16 is provided at one end of the positioning bracket 12 away from the bridge tower 30, and a plurality of fasteners 17 are also provided in the pedestal 10, and the fasteners 17 are connected to the bottom plate 16. In this way, by providing the fasteners 17, since the fasteners 17 are connected to the positioning bracket 12 through the top plate 15, the fasteners 17 are also connected to the concrete used to form the pedestal 10, so that the positioning bracket 12 and the concrete can be fastened and connected to form a whole. Therefore, the fasteners 17 are provided to make the connection between the positioning bracket 12 and the pedestal 10 more stable, and prevent the positioning bracket 12 from tilting or shifting during the pouring of concrete or in other situations where the force is large, thereby preventing the bridge tower 30 connected to the positioning bracket 12 from shifting, so that the bridge tower 30 has a higher positioning accuracy and can maintain its position accurately. By providing the bottom plate 16, it is convenient to connect the positioning bracket 12 with the fasteners 17. In addition, during the actual assembly process of the positioning bracket 12, the base plate 16 and the positioning bracket 12 can be successively fixed in the concrete by pouring different layers of concrete in sequence, so that the position of the positioning bracket 12 can be adjusted in the process to ensure the accurate position of the top plate 15.

[0067] Specifically, in the actual assembly process, the bottom plate 16 is first fixedly connected with the fasteners 17, and when pouring the first layer of concrete for forming the pedestal 10, the bottom plate 16 and the fasteners 17 are pre-embedded, and then the exact position of the bottom plate 16 is measured, and the coordinates and height adjustment value of the positioning bracket 12 are determined according to the measurement result, and then the positioning bracket 12 is hoisted and installed to ensure the accurate positioning of the top plate 15. It can be understood that the position of the bottom plate 16 is easier to determine than the position of the fasteners 17. Therefore, by setting the bottom plate 16, the measurement result of its position has a higher accuracy. In addition, since the positioning bracket 12 is easier to accurately dock with the bottom plate 16, the position accuracy of the positioning bracket 12 is improved, thereby further improving the installation positioning accuracy of the bridge tower 30.

[0068] In some embodiments, the ends of the columns 13 and the diagonal braces 14 away from the bridge tower 30 are respectively connected to the corresponding bottom plates 16. In this way, the plurality of diagonal braces 14 and the columns 13 are connected to the fasteners 17 through the corresponding bottom plates 16, thereby increasing the number of fasteners 17 connected to the positioning brackets 12, strengthening the connection between the positioning brackets 12 and the concrete, and preventing the positioning brackets 12 from being displaced in the cap 10.

[0069] Alternatively, if Figure 7 and Figure 8 As shown, the multiple bottom plates 16 are located in the same plane, so that the positions of the multiple bottom plates 16 on the plane are easy to determine, and the end surfaces of the ends of the columns 13 and the diagonal braces 14 connected to the bottom plates 16 are on the same plane, which makes it easy to achieve accurate positioning of the top plate 15 and facilitates the operation of position measurement and adjustment.

[0070] In some embodiments, one end of the fastener 17 is connected to the base plate 16 .

[0071] Optionally, the fastener 17 can be an anchor bolt, one end of which is connected to the base plate 16, and the other end of which is configured in a J-shape or an L-shape to increase the friction between the anchor bolt and the concrete and prevent the anchor bolt from loosening in the concrete. In this way, by using the anchor bolt, the positioning bracket 12 is reliably fixed to the base 10 by connecting with the anchor bolt (see FIG. Figure 1 ) inside, the connection reliability between the bridge tower 30 and the pedestal 10 is improved, so that the bridge tower 30 and the pedestal 10 can withstand greater vibration and impact.

[0072] Furthermore, the longitudinal extension direction of the anchor bolt is parallel to the longitudinal extension direction of the bridge tower 30, so as to improve the bearing capacity of the anchor bolt and prevent the anchor bolt from being damaged or broken under the action of stress.

[0073] The connection structure between the bridge tower and the pedestal is improved by arranging a plurality of fasteners 17 and a positioning bracket 12 in the pedestal 10, and a plurality of bottom plates 16 are arranged at one end of the positioning bracket 12 connected with the fasteners 17, and a top plate 15 is arranged at the other end of the positioning bracket 12. In the actual assembly process, when pouring the first layer of concrete for forming the pedestal 10, the fasteners 17 and the bottom plate 16 are embedded, and after the first layer of concrete pouring is completed, the accurate position of the bottom plate 16 is measured, and the coordinates and height adjustment value of the positioning bracket 12 are determined according to the measurement result. Optionally, the positioning bracket 12 also includes a column 13 and a diagonal brace 14 to increase the structural stability and positioning accuracy of the positioning bracket 12. The coordinates and height adjustment values ​​of the column 13 and the diagonal brace 14 are determined to ensure the accurate positioning of the top plate 15, and then the steel bars are tied and the second layer of concrete for forming the pedestal 10 is poured. After the second layer of concrete pouring is completed, the bottom segment of the steel tower is hoisted so that the positioning plate 35 arranged at the bottom segment is accurately docked with the top plate 15. In this way, the high-precision positioning installation of the bottom segment of the bridge tower 30 is completed.

[0074] It should be noted that when pouring the second layer of concrete for forming the cap 10 , the tied steel bars include the cap steel bars used to form the cap 10 together with the concrete, and the erection steel bars 70 arranged in the tower base 20 .

[0075] Therefore, the connection structure between the bridge tower and the pedestal provided by the present application improves the positioning accuracy of the bridge tower 30 by setting the positioning bracket 12, sets the pedestal 10 and the tower base 20 to increase the bearing capacity of the bridge tower 30, and strengthens the connection between the bridge tower 30 and the pedestal 10 and the tower base 20 by setting the ring ribs 40, vertical rib steel bars, vertical ribs 50, ring rib steel bars, shear nails 60, erection steel bars 70 and perforated steel bars 80, so that the steel structure and the concrete structure form an integral common force, so that the load of the bridge tower 30 is smoothly transmitted to the tower base 20 and the pedestal 10. Since the connection structure between the bridge tower and the pedestal does not need to adopt a concrete connection structure, the structure is simple and the construction difficulty is reduced.

[0076] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0077] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A connection structure between a bridge tower and a cap, characterized in that: include: A support platform, wherein a plurality of positioning brackets are arranged inside the support platform; A tower base is arranged at one end of the support platform; A bridge tower, comprising an outer shell and an inner shell arranged in the outer shell, one end of the outer shell and one end of the inner shell are inserted into the support platform and the tower base, and one end of the outer shell and the inner shell inserted into the support platform is connected to the positioning bracket; A plurality of ring ribs, a plurality of vertical ribs and a plurality of shear nails are respectively arranged on the inner and outer sides of the outer shell and the inner shell, the extension direction of the ring ribs is perpendicular to the longitudinal extension direction of the bridge tower, and the longitudinal extension direction of the vertical ribs is parallel to the longitudinal extension direction of the bridge tower; The frame steel bars and the perforated steel bars are arranged in the tower base, the frame steel bars are respectively arranged on the inner and outer sides of the outer shell and the inner shell, and are spaced apart from the outer shell and the inner shell, the outer shell and the inner shell are provided with a plurality of first through holes, the perforated steel bars are correspondingly penetrated through the first through holes, and the two ends of the perforated steel bars are respectively connected to the frame steel bars; The positioning bracket includes a column and a plurality of diagonal braces; The longitudinal extension direction of the column is parallel to the longitudinal extension direction of the bridge tower, one end of the column is connected to the outer shell or the inner shell, and one end of the diagonal brace is connected to the side wall of the column; A top plate is provided at one end of the positioning bracket connected to the outer shell or the inner shell; A positioning plate is provided at one end of the outer shell and the inner shell connected to the positioning bracket, and the positioning plate is connected to the positioning bracket in a one-to-one correspondence.

2. The connection structure between the bridge tower and the abutment according to claim 1, characterized in that: The outer shell includes a support platform section located inside the support platform, one end of the support platform section is connected to the positioning bracket, and the support platform section is provided with a hollowed-out area.

3. The connection structure between the bridge tower and the abutment according to claim 2, characterized in that: The cap section is also provided with a cap steel bar passing hole.

4. The connection structure between the bridge tower and the abutment according to claim 1, characterized in that: The annular rib is provided with a plurality of second through holes; The connection structure between the bridge tower and the pedestal further includes a plurality of vertical rib steel bars, and the vertical rib steel bars are passed through the second through holes.

5. The connection structure between the bridge tower and the abutment according to claim 1, characterized in that: The vertical rib is provided with a plurality of third through holes; The connection structure between the bridge tower and the abutment further includes a plurality of annular rib steel bars, and the annular rib steel bars are passed through the third through holes.

6. The connection structure between the bridge tower and the abutment according to claim 5, characterized in that: One end of the vertical rib close to the positioning bracket extends to one end of the outer shell connected to the positioning bracket.

7. The connection structure between the bridge tower and the abutment according to claim 1, characterized in that: The plurality of diagonal braces are respectively connected to the side walls on different sides of the column.

8. The connection structure between the bridge tower and the abutment according to claim 1, characterized in that: The end of the positioning bracket away from the bridge tower is provided with a bottom plate; A plurality of fasteners are also provided in the support platform, and the fasteners are connected to the base plate.

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