Overpass turning system
By designing a concrete upper turntable, convex body, ball hinge support and lower turntable structure, combined with limit bolts and jack reaction support, the problem of concrete voids during the construction of the overpass rotation was solved, achieving dense pouring and rotational stability.
Patent Information
- Application Number
- CN202423181261.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-23
AI Technical Summary
In existing overpass rotation construction, the post-poured concrete is prone to detaching from the top of the rotation support, affecting the pouring quality.
The structure adopts a concrete upper turntable, convex body, ball joint support, pad stone and concrete lower turntable. It uses the principle of communicating vessels to squeeze the concrete at the higher position to the concrete at the lower position. Combined with components such as limit bolts, support feet and jack reaction support, it ensures that the pouring is dense; and the gaps are sealed by grouting holes, and the rotational stability is enhanced by counterweight and clamp.
This effectively prevents the post-poured concrete from becoming void at the top of the rotating support, ensuring pouring quality and enhancing the stability and compactness of the rotation process.
Smart Images
Figure CN223576967U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of bridge swivel construction, especially a cloverleaf swivel system. BACKGROUND
[0002] Bridge swivel construction refers to a construction method that a bridge structure is formed (poured or spliced) at a non-design axis position, and then is positioned through swiveling. It can convert the work above the obstacle into the work on the shore or near the ground. It is mainly applied to the situation that cannot support, such as cloverleaf and the like, which needs to form a three-dimensional intersection, and the bridge body above needs to cross the bridge body below. The swivel system of the swivel bridge generally pulls the inhaul cable through the opposite pulling of the jack to form a rotational couple and realize swiveling. After the swiveling is completed, the swivel support needs to be sealed by post-pouring concrete. Since the post-pouring concrete has a large volume, it is easy to cause the middle concrete to be not dense, and the middle part is hollow after forming, thereby affecting the pouring quality. CONTENT OF THE UTILITY MODEL
[0003] The technical problem to be solved by the utility model is to provide a cloverleaf swivel system which facilitates the dense pouring of post-pouring concrete and prevents the post-pouring concrete from being hollow at the top of the swivel support.
[0004] In order to solve the above problem, a cloverleaf swivel system is adopted, which comprises:
[0005] A concrete upper turntable is fixed on the bottom surface of the pier;
[0006] A convex body is coaxially fixed on the bottom surface of the concrete upper turntable, and the diameter of the convex body is smaller than that of the concrete upper turntable;
[0007] A spherical hinge support is coaxially arranged on the bottom surface of the convex body, and comprises an upper spherical hinge and a lower spherical hinge. The upper spherical hinge is coaxially fixed on the bottom surface of the convex body;
[0008] A cushion stone is coaxially and flatly arranged on the bottom surface of the lower spherical hinge;
[0009] A concrete lower turntable is coaxially fixed on the bottom surface of the cushion stone, and the bottom surface of the concrete lower turntable is fixed on the pier foundation.
[0010] With such a structure, when the post-pouring concrete is poured, the convex body makes the pouring height of the top area of the spherical hinge support lower, and the pouring height of the side of the concrete upper turntable higher. Due to the principle of the communicating vessel, the concrete at the high position extrudes the concrete at the low position, which is beneficial to the extrusion and densification of the concrete at the low position, and prevents the concrete at the low position from not being tightly contacted with the concrete upper turntable and the top of the swivel support, and being hollow.
[0011] As a further improvement of the utility model, a plurality of first lugs are arranged at the edge interval angle of the upper spherical hinge, a first limiting bolt is connected to the first lug, the first limiting bolt passes through the convex body and is fixed in the upper concrete turntable, a plurality of second lugs are arranged at the edge interval angle of the lower spherical hinge, a second limiting bolt is connected to the second lug, the second limiting bolt passes through the cushion stone and is fixed in the lower concrete turntable.
[0012] With the structure, the spherical hinge support is more closely connected with the upper concrete turntable, the convex body and the lower concrete turntable.
[0013] As a further improvement of the utility model, a plurality of first lugs are arranged at the edge interval angle of the upper spherical hinge, a first limiting bolt is connected to the first lug, the first limiting bolt passes through the convex body and is fixed in the upper concrete turntable, a plurality of second lugs are arranged at the edge interval angle of the lower spherical hinge, a second limiting bolt is connected to the second lug, the second limiting bolt passes through the cushion stone and is fixed in the lower concrete turntable.
[0014] With the structure, when the upper concrete turntable rotates, the support leg can rotate with the upper concrete turntable, the steel plate slide can reduce the friction.
[0015] As a further improvement of the utility model, a plurality of first lugs are arranged at the edge interval angle of the upper spherical hinge, a first limiting bolt is connected to the first lug, the first limiting bolt passes through the convex body and is fixed in the upper concrete turntable, a plurality of second lugs are arranged at the edge interval angle of the lower spherical hinge, a second limiting bolt is connected to the second lug, the second limiting bolt passes through the cushion stone and is fixed in the lower concrete turntable.
[0016] With the structure, the support leg is measured according to the rotation angle, the position where the support leg should be rotated to is marked on the steel plate slide, when the support leg is close to the position, a double I-beam is placed on the same side of the inner and outer jacks, the double I-beam is locked with the counterforce support through the anchor, anchor plate and threaded steel, a jack is installed on the I-beam to limit the support leg, the support leg is prevented from rotating too much, and the double I-beam is wedged and fixed between the support leg and the steel plate slide after the rotation, or the maximum static friction is overcome in the starting stage.
[0017] As a further improvement of the utility model, a plurality of first lugs are arranged at the edge interval angle of the upper spherical hinge, a first limiting bolt is connected to the first lug, the first limiting bolt passes through the convex body and is fixed in the upper concrete turntable, a plurality of second lugs are arranged at the edge interval angle of the lower spherical hinge, a second limiting bolt is connected to the second lug, the second limiting bolt passes through the cushion stone and is fixed in the lower concrete turntable.
[0018] With the structure, the jack pulls the traction cable to apply a rotation couple to rotate the convex body.
[0019] As a further improvement of the utility model, a plurality of first lugs are arranged at the edge interval angle of the upper spherical hinge, a first limiting bolt is connected to the first lug, the first limiting bolt passes through the convex body and is fixed in the upper concrete turntable, a plurality of second lugs are arranged at the edge interval angle of the lower spherical hinge, a second limiting bolt is connected to the second lug, the second limiting bolt passes through the cushion stone and is fixed in the lower concrete turntable.
[0020] With the structure, the gap can be further sealed by grouting.
[0021] As a further improvement of the utility model, the bridge pier upper end is fixed with a bridge body, and the bridge body one end upper surface is mounted with a counterweight.
[0022] With the structure, the counterweight is beneficial to the balance of the bridge body.
[0023] As a further improvement of the utility model, the convex body upper interval angle is arranged with a radially extending steel pipe, and the steel pipe end portion is fixed with a hoop at intervals.
[0024] With the structure, the traction cable can be stably wound in the region formed between the two hoops, the steel pipe can extend the force arm and increase the rotating moment.
[0025] As a further improvement of the utility model, the steel pipe end portion is arranged with a groove at intervals, and the groove is matched with the hoop.
[0026] With the structure, the groove can stably
[0027] As a further improvement of the utility model, the spherical hinge support is sealed by post-poured concrete.
[0028] With the structure, after the spherical hinge support is sealed by post-poured concrete, the bridge pier whole is formed.
[0029] The utility model is convenient for post-poured concrete pouring and compaction, and prevents post-poured concrete from being empty at the top of the rotating support. BRIEF DESCRIPTION OF DRAWINGS
[0030] Figure 1 It is the structural schematic diagram of the embodiment.
[0031] Figure 2 It is the counterweight mounting position schematic diagram.
[0032] Figure 3 It is the steel pipe upper winding traction cable structure schematic diagram.
[0033] Figure 4 It is the steel pipe structure schematic diagram.
[0034] Figure 5 It is the first traction counterforce support and the second traction counterforce support arrangement position schematic diagram.
[0035] Figure 6 It is the double-spliced I-beam structure schematic diagram.
[0036] Figure 7 It is the double-spliced I-beam and the jack mounting structure schematic diagram.
[0037] Mark No. 1, concrete upper turntable; 2, pier; 3, convex body; 4, spherical hinge support; 401, upper spherical hinge; 4011, first lug; 4012, first limiting bolt; 402, lower spherical hinge; 4021, second lug; 4022, second limiting bolt; 5, cushion stone; 6, concrete lower turntable; 7, support leg; 8, steel plate slide; 9, inner jack counterforce support; 10, outer jack counterforce support; 11, first traction counterforce support; 12, second traction counterforce support; 13, grouting hole; 14, bridge body; 15, counterweight; 16, steel pipe; 17, hoop; 18, groove; 19, post-cast concrete. DETAILED DESCRIPTION
[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0039] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements inside. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.
[0040] Embodiment 1
[0041] As shown in the drawings, a flyover rotating system comprises: Figures 1-7
[0042] The concrete upper turntable 1 is fixed on the bottom surface of the pier 2;
[0043] The convex body 3 is coaxially fixed on the bottom surface of the concrete upper turntable 1, and the diameter of the convex body 3 is smaller than that of the concrete upper turntable 1;
[0044] Ball hinge support 4 is coaxially arranged on the bottom surface of convex body 3, which includes upper ball hinge 401 and lower ball hinge 402, and upper ball hinge 401 is coaxially fixed on the bottom surface of convex body 3;
[0045] Cushion stone 5 is coaxially and flatly arranged on the bottom surface of lower ball hinge 402;
[0046] Concrete lower rotating disc 6 is coaxially fixed below cushion stone 5, and the bottom surface of concrete lower rotating disc 6 is fixed on the pier foundation.
[0047] With the structure, when the post-cast concrete is cast, convex body 3 makes the casting height of the top area of ball hinge support 4 lower, and the casting height of the side of concrete upper rotating disc 1 higher, and due to the principle of communicating vessels, the concrete at the high position extrudes the concrete at the low position, which is beneficial to the extrusion and compaction of the concrete at the low position and prevents the concrete at the low position from not being tightly contacted with concrete upper rotating disc 1 and being hollowed.
[0048] In the embodiment, a plurality of first lugs 4011 are arranged at the edge of upper ball hinge 401 at intervals, first limiting bolts 4012 are threaded through first lugs 4011, and first limiting bolts 4012 are fixed in concrete upper rotating disc 1 through convex body 3; a plurality of second lugs 4021 are arranged at the edge of lower ball hinge 402 at intervals, second limiting bolts 4022 are threaded through second lugs 4021, and second limiting bolts 4022 are fixed on concrete lower rotating disc 6 downward through cushion stone 5.
[0049] With the structure, ball hinge support 4 is more closely connected with concrete upper rotating disc 1, convex body 3 and concrete lower rotating disc 6.
[0050] In the embodiment, support leg 7 is fixed at the edge of convex body 3 at intervals, steel plate slide 8 is arranged below support leg 7, steel plate slide 8 is fixed on the upper surface of concrete upper rotating disc 1 and surrounds a circle, and support leg 7 is slidingly connected with steel plate slide 8.
[0051] With the structure, when concrete upper rotating disc 1 rotates, support leg 7 can rotate with concrete upper rotating disc 1 to realize stable support in the rotating process, and steel plate slide 8 can reduce friction.
[0052] In the embodiment, inner jack counterforce support 9 is arranged between support leg 7 and cushion stone 5, and outer jack counterforce support 10 is arranged on the outer side of support leg 7, and inner jack counterforce support 9 and outer jack counterforce support 10 are fixed on concrete lower rotating disc 6.
[0053] Adopting such structure, according to the angle of rotation for measurement, mark the position of the support foot 7 on the steel plate slide 8, when the support foot 7 is close to the position, place the double I-beam on the same side of the inner jack reaction support 9 and the outer jack reaction support 10, the double I-beam is locked with the reaction support through anchor, anchor plate and threaded steel, and the jack is installed on the I-beam to limit the support foot 7, prevent over-rotation, at the same time, after the rotation, wedge the support foot 7 and the steel plate slide 8 with the wedge and fix it, or in the starting stage, push the support foot 7 to assist to overcome the maximum static friction, make the upper rotating disc 1 start to rotate.
[0054] In the embodiment, the first traction reaction support 11 and the second traction reaction support 12 are arranged outside the upper rotating disc 1, which are fixed on the lower rotating disc 6 in central symmetry, and are used for horizontally arranging the jack to pull the traction rope wound around the convex body 3.
[0055] Adopting such structure, the jack pulls the traction rope to apply a rotating couple to make the convex body 3 rotate.
[0056] In the embodiment, the upper rotating disc 1 is preformed with a grouting hole 13, which extends downward and penetrates the convex body 3.
[0057] Adopting such structure, the gap can be further sealed by grouting.
[0058] In the embodiment, the bridge body 14 is fixed on the upper end of the bridge pier 2, and the counterweight 15 is arranged on one end of the upper surface of the bridge body 14.
[0059] Adopting such structure, the counterweight 15 is beneficial to the balance of the bridge body 14.
[0060] In the embodiment, the steel pipes 16 extending radially are arranged on the convex body 3 at intervals, and the clamps 17 are fixed at the ends of the steel pipes 16 at intervals.
[0061] Adopting such structure, the traction rope can be stably wound in the region between the two clamps 17, and the steel pipes 16 can extend the force arm and increase the rotating moment.
[0062] In the embodiment, the grooves 18 are arranged at the ends of the steel pipes 16 at intervals, and the grooves 18 are matched with the clamps 17.
[0063] Adopting such structure, the clamps 17 can be stably arranged on the grooves 18.
[0064] In the embodiment, the spherical hinge support 4 is sealed by the post-poured concrete 19.
[0065] Adopting such structure, after the post-poured concrete 19 seals the spherical hinge support 4, the bridge pier is formed as a whole.
[0066] The above is further detailed description of the utility model in combination with specific preferred embodiments, and cannot be deemed as limitation of the specific implementation of the utility model to these descriptions. For the skilled in the art to which the utility model belongs, without departing from the concept of the utility model, a number of equivalent substitutions or obvious variations can be made, and the performance or use is the same, which should be regarded as belonging to the protection scope of the utility model.
Claims
1. A cloverleaf turn system characterized by The utility model relates to a bridge pier and bridge body fixing device, including: The concrete upper rotating disc (1) is fixed on the bottom surface of the pier (2); The convex body (3) is coaxially fixed on the bottom surface of the concrete upper rotating disc (1), and the diameter of the convex body (3) is smaller than that of the concrete upper rotating disc (1); The spherical hinge support (4) is coaxially arranged on the bottom surface of the convex body (3), and includes an upper spherical hinge (401) and a lower spherical hinge (402), wherein the upper spherical hinge (401) is coaxially fixed on the bottom surface of the convex body (3); The cushion stone (5) is coaxially and flatly arranged on the bottom surface of the lower spherical hinge (402); The concrete lower rotating disc (6) is coaxially fixed below the cushion stone (5), and the bottom surface of the concrete lower rotating disc (6) is fixed on the pier foundation.
2. The cloverleaf turn system of claim 1, wherein A plurality of first lugs (4011) are arranged at intervals on the edge of the upper spherical hinge (401), a first limiting bolt (4012) is connected to the first lug (4011), the first limiting bolt (4012) penetrates the convex body (3) and is fixed in the concrete upper rotating disc (1); a plurality of second lugs (4021) are arranged at intervals on the edge of the lower spherical hinge (402), a second limiting bolt (4022) is connected to the second lug (4021), the second limiting bolt (4022) penetrates the cushion stone (5) downward and is fixed on the concrete lower rotating disc (6).
3. The cloverleaf turn system of claim 1, wherein The convex body (3) is fixed with a supporting leg (7) at intervals on the edge, a steel plate slide (8) is arranged below the supporting leg (7), the steel plate slide is fixed on the upper surface of the concrete upper rotating disc (1) and surrounds a circle, and the supporting leg (7) is slidably connected to the steel plate slide (8).
4. The cloverleaf turn system according to claim 3, wherein An inner jack counterforce support (9) is arranged between the supporting leg (7) and the cushion stone (5), and an outer jack counterforce support (10) is arranged outside the supporting leg (7), and the inner jack counterforce support (9) and the outer jack counterforce support (10) are fixed on the concrete lower rotating disc (6).
5. The cloverleaf turn system according to claim 1, wherein, First and second traction counterforce supports (11) and (12) are arranged outside the concrete upper rotating disc (1) and are fixed on the lower rotating disc (6) in a central symmetry mode, and are used for horizontally arranging a jack to pull a traction cable wound around the convex body (3).
6. The cloverleaf turn system according to claim 1, wherein, A pressure grouting hole (13) is reserved on the concrete upper rotating disc (1), and the pressure grouting hole (13) extends downward and penetrates the convex body (3).
7. The cloverleaf turn system according to claim 1, wherein A bridge body (14) is fixed on the upper end of the pier (2), and a counterweight (15) is arranged on the upper end of the bridge body (14).
8. The cloverleaf turn system according to claim 1, wherein Radially extending steel pipes (16) are arranged at intervals on the convex body (3), and hoops (17) are fixed at intervals on the ends of the steel pipes (16).
9. The cloverleaf turn system of claim 8, wherein Grooves (18) are arranged at intervals on the ends of the steel pipes (16), and the grooves (18) are matched with the hoops (17).
10. The cloverleaf turn system according to claim 1, wherein The spherical hinge support (4) is sealed by post-poured concrete (19).