Arch rib jig frame suitable for various terrains

Abstract

The utility model discloses an arch rib jig frame suitable for various terrains, which comprises a positioning mechanism, a plurality of supporting mechanisms and a plurality of supporting mechanisms, wherein the top of the positioning mechanism can be matched with and support arch rib chord members; the supporting cross beam is fixedly connected to the lower surface of the positioning mechanism; the at least two telescopic supporting legs are fixedly connected to the lower surface of the supporting cross beam and arranged in the length direction of the supporting cross beam, and the lengths of the telescopic supporting legs can be adjusted; and the rotatable supporting seat is connected with the bottom of the telescopic supporting leg. The utility model can effectively solve the problem that the arch rib jig frame cannot be reused.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, and in particular to an arch rib frame suitable for various terrains. Background Technology

[0002] Steel-concrete composite arch bridges have seen rapid development in my country due to their advantages such as high material strength, strong resistance to deformation, convenient construction, and beautiful appearance.

[0003] The construction of steel-concrete composite arch bridges typically involves prefabricating steel pipe arch rib components in a factory, transporting them to the construction site, erecting an arch rib formwork, and then assembling the arch rib segments. If a fixed arch rib formwork is used, the site must be leveled beforehand. This ensures that two or more arch rib segments, supported by the formwork at the same height below, are at the same horizontal level for easy welding. However, site leveling is time-consuming and labor-intensive, and the formwork is designed specifically for each project and cannot be reused. Utility Model Content

[0004] This utility model discloses an arch rib frame suitable for various terrains, which can effectively solve the problem that the arch rib frame cannot be reused.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] An arch-rib frame suitable for various terrains, comprising:

[0007] The positioning mechanism, the top of which can match the supporting arch rib chord;

[0008] A support beam is fixedly connected to the lower part of the positioning mechanism;

[0009] The retractable outriggers are provided in at least two form, which are fixedly connected to the underside of the support beam and arranged along the length of the support beam, and their length is adjustable.

[0010] A rotatable support is connected to the bottom of the retractable leg.

[0011] Preferably, the rotatable support rotates along the length of the supporting beam.

[0012] Preferably, the rotatable support includes a lower rotatable seat, an upper rotatable seat, and a rotating pin. The upper rotatable seat and the lower rotatable seat are connected by the rotating pin, so that the upper rotatable seat can rotate relative to the lower rotatable seat. The top surface of the upper rotatable seat is connected to the bottom of the retractable support leg.

[0013] Preferably, the retractable support leg includes an upper support leg, a lower support leg, and a middle support leg. The upper support leg has an upper receiving cavity vertically arranged from the bottom center upwards, and an upper adjusting nut is fixed below it. The lower support leg has a lower receiving cavity vertically arranged from the top center downwards, and a lower adjusting nut is fixed above it. The middle support leg can be screwed into the upper adjusting nut and the lower adjusting nut, and extends into the upper receiving cavity of the upper support leg and the lower receiving cavity of the lower support leg. A pin hole is provided in the middle.

[0014] Preferably, an upper fixing plate is fixedly connected to the upper support leg, and the upper fixing plate is connected to the support beam.

[0015] Preferably, a lower fixing plate is fixedly connected to the lower support leg, and the lower fixing plate is connected to the rotatable support.

[0016] Preferably, stiffening plates are provided on the left and right sides and / or front and rear sides of the top of the upper support leg, and the upper side of the stiffening plate is connected to the upper fixing plate.

[0017] Preferably, the top surface of the positioning mechanism is an arc-shaped groove that matches the arch rib chord.

[0018] Preferably, the positioning mechanism is provided with stiffening plates on both the front and rear sides.

[0019] Preferably, the supporting beam is made of double-I-beams.

[0020] The arch rib formwork described above is suitable for use in various terrains. The rotatable supports are fixed to the ground foundation. If the site is inclined, the rotatable supports are adjusted to rotate along the length of the supporting beam, and the lengths of the telescopic legs are adjusted to ensure the supporting beam is horizontal. At this point, the positioning mechanism is also horizontal, allowing the arch rib chord to be stably supported on the arch rib formwork. If there are two or more arch rib segments, two or more arch rib formworks can be used, adjusting the angle of the rotatable supports and the length of the telescopic legs according to different ground elevations, so that each formwork is at a consistent elevation, providing a support platform for assembling two or more arch rib segments. After use, the connection between the rotatable supports and the ground foundation is disconnected, allowing the arch rib formwork to be transferred to other engineering projects.

[0021] This utility model has the following advantages:

[0022] (1) The arch rib frame of this utility model does not require leveling the site before use. By adjusting the rotation angle of the rotatable support and the length of the telescopic support leg, the positioning mechanism can also be in a horizontal state, thereby meeting the requirements for stable support of the arch rib segment.

[0023] (2) When assembling two or more arch rib segments at one time, the rotatable supports and telescopic legs of two or more arch rib jigs can be matched and adjusted so that each jig can be at a certain elevation, thereby meeting the need for horizontal support of two or more arch rib segments.

[0024] (3) The arch rib frame of this utility model can be used on ground with different slopes, and is easy and quick to install, and can save time for leveling the site.

[0025] (4) The arch rib frame of this utility model can be reused multiple times, reducing material waste. Attached Figure Description

[0026] Figure 1 This is a structural schematic diagram of an embodiment of the present invention.

[0027] Figure 2 yes Figure 1 A schematic diagram of the right-side structure.

[0028] Figure 3 This is a schematic diagram of the structure assembled under the support of two arch rib segments in one embodiment of this utility model.

[0029] In the figure, the arch rib chord 1, the positioning mechanism 2, the supporting beam 3, the upper support leg stiffening plate 4, the telescopic support leg 5, the upper support leg 501, the middle support leg 502, the lower support leg 503, the rotatable support 6, the upper rotating seat 601, the rotating pin 602, and the lower rotating seat 603. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0031] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0033] An arch-rib frame suitable for various terrains, combined with Figure 1-2 As shown, the system includes a positioning mechanism 2, a supporting beam 3, and retractable legs 5. The positioning mechanism 2 is top-mounted to support the arch rib chord 1, which is the main structural skeleton of the arch rib. The positioning mechanism 2's support of the arch rib chord 1 ensures the stability of the arch rib support frame for the arch rib segments. The supporting beam 3 is fixedly connected below the positioning mechanism 2 and is used to transfer loads. It is installed longitudinally along the arch rib, and its length is generally greater than that of the positioning mechanism 2. At least two retractable legs 5 are fixedly connected below the supporting beam 3 and arranged along its length. Their length is adjustable. At least two retractable legs 5 support the supporting beam 3, better ensuring its strength and allowing the load to be transferred downwards more evenly. The retractable legs 5 are typically symmetrically arranged relative to the centerline of the supporting beam 3's length direction. Figure 1 and 2 As shown, this embodiment is provided with one row of retractable outriggers 5. Depending on actual needs, two or more rows of retractable outriggers 5 can also be provided. A rotatable support 6 is connected to the bottom of the retractable outriggers 5. Since the rotatable support is provided, it is not necessary to level the ground on a sloping ground. The rotatable support 6 can be rotated and adjusted to be kept horizontal by the positioning mechanism 2.

[0034] Combination Figure 3 As shown, during use, the rotatable support 6 is fixed to the ground foundation. There are several methods of fixing it, such as using expansion bolts to fix it to the ground foundation, or pouring concrete to fix the base of the rotatable support 6. Even if the site has an inclination, and according to conventional mold casting, there is a certain inclination along the longitudinal direction of the arch rib, the rotatable support 6 can be adjusted to rotate along the longitudinal direction of the arch rib, and the length of each telescopic support leg 5 can be adjusted to ensure that the supporting beam 3 is in a horizontal state. At this time, the positioning mechanism 2 is also in a horizontal state, thus allowing the arch rib chord 1 to be stably supported on the arch rib formwork. If there are two or more arch rib segments, such as... Figure 3As shown, two or more arch rib formworks adjust the angle of the rotatable support 6 and the length of the telescopic support leg 5 according to different ground elevations, ensuring that each formwork is at a consistent elevation. This provides a support platform for assembling two or more arch rib segments, preventing tilting and slippage of the arch rib segments due to inconsistent heights between the two or more formworks. After use, the expansion bolts can be removed, or the concrete fixing the rotatable support 6 can be chiseled away, allowing the arch rib formwork to be transferred to other engineering projects.

[0035] Preferably, the rotatable support 6 rotates along the length of the supporting beam 3, that is, it is set longitudinally along the arch rib segment during use, so that the height of two or more arch rib chords of an arch rib segment is consistent.

[0036] Preferably, this embodiment provides a specific rotatable support 6, which includes a lower rotating seat 603, an upper rotating seat 601, and a rotating pin 602. The upper rotating seat 601 and the lower rotating seat 603 are connected by the rotating pin 602, allowing the upper rotating seat 601 to rotate relative to the lower rotating seat 603. The top surface of the upper rotating seat 601 is connected to the bottom of the telescopic support leg 5. After adjusting the relative angle between the upper rotating seat 601 and the lower rotating seat 603, the rotating pin 602 can be fixed, preventing the upper rotating seat 601 and the lower rotating seat 603 from rotating relative to each other. It is also worth noting that the base is generally provided on the lower rotating seat 603.

[0037] Preferably, this embodiment provides a specific retractable support leg 5, which includes an upper support leg 501, a lower support leg 503, and a middle support leg 502. The upper support leg 501 has an upper receiving cavity vertically arranged from the bottom center upwards, and an upper adjusting nut is fixed below it. The screw hole position of the upper adjusting nut matches the position of the upper receiving cavity. The lower support leg 503 has a lower receiving cavity vertically arranged from the top center downwards, and a lower adjusting nut is fixed above it. The screw hole position of the lower adjusting nut matches the position of the lower receiving cavity. The middle support leg 502 can be screwed into the upper and lower adjusting nuts and extends into the upper receiving cavity of the upper support leg 501 and the lower receiving cavity of the lower support leg 503. A pin hole is provided in the middle. By inserting a pin into the pin hole and rotating the middle support leg 502, the retractable support leg 5 can be extended or retracted. It should also be noted that the thread matching of the upper and lower adjusting nuts allows the middle support leg 502 to be inserted deeper into both the upper and lower receiving cavities, or to expose more of the upper support leg 501 and the lower support leg 503, when the middle support leg 502 rotates.

[0038] Preferably, an upper fixing plate is fixedly connected to the upper support leg 501. The area of ​​the upper fixing plate is generally larger than the top surface area of ​​the upper support leg 501. The upper fixing plate is connected to the support beam 3. The upper fixing plate can increase the contact area between the upper support leg 501 and the support beam 3, thereby allowing the load of the support beam 3 to be transferred to the upper support leg 501 more evenly.

[0039] Preferably, a lower fixing plate is fixedly connected to the lower support leg 503. The area of ​​the lower fixing plate is generally larger than the area of ​​the top surface of the lower support leg 503. The lower fixing plate is connected to the rotatable support 6. The lower fixing plate can increase the contact area between the lower support leg 503 and the rotatable support 6, so that the load of the lower support leg 503 is transferred to the rotatable support 6 more evenly.

[0040] Preferably, upper outrigger stiffening plates 4 are provided on the left and right sides and / or front and rear sides of the top of the upper outrigger 501. The upper side of the upper outrigger stiffening plate 4 is connected to the upper fixed plate. The upper outrigger stiffening plate 4 can better ensure the stability of the connection between the upper outrigger 501 and the upper fixed plate, and at the same time, it can better prevent the upper fixed plate from deforming, so that the load is more evenly distributed to the telescopic outrigger 5. The upper outrigger stiffening plate 4 generally adopts a triangular structure, in which one right-angle side is connected to the upper outrigger 501, and the other right-angle side is connected to the bottom surface of the upper fixed plate.

[0041] Preferably, the top surface of the positioning mechanism 2 is an arc-shaped groove that matches the arch rib chord 1. Based on the steel pipe structure of the arch rib chord 1, the arc-shaped groove on the top surface of the positioning mechanism 2 can better support the lower part of the arch rib chord 1.

[0042] Preferably, the positioning mechanism 2 is provided with positioning mechanism stiffening plates (not shown in the figure) on both the front and rear sides, specifically as follows: Figure 1 The front-to-back direction of the positioning mechanism 2 can enhance its lateral stability. The stiffening plate of the positioning mechanism generally adopts a triangular structure, with one right-angled side connected to the positioning mechanism 2 and the other right-angled side connected to the top surface of the supporting beam 3.

[0043] Preferably, the supporting beam 3 is made of double-I-beams, which have good rigidity and can better prevent deformation during use.

[0044] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. An arch-rib frame suitable for various terrains, characterized in that... include: The positioning mechanism, the top of which can match the supporting arch rib chord; A support beam is fixedly connected to the lower part of the positioning mechanism; The retractable outriggers are provided in at least two form, which are fixedly connected to the underside of the support beam and arranged along the length of the support beam, and their length is adjustable. A rotatable support is connected to the bottom of the retractable leg.

2. The arch rib frame suitable for various terrains according to claim 1, characterized in that: The rotatable support rotates along the length of the supporting beam.

3. The arch rib frame suitable for various terrains according to claim 1 or 2, characterized in that: The rotatable support includes a lower rotatable seat, an upper rotatable seat, and a rotating pin. The upper rotatable seat and the lower rotatable seat are connected by the rotating pin, allowing the upper rotatable seat to rotate relative to the lower rotatable seat. The top surface of the upper rotatable seat is connected to the bottom of the retractable support leg.

4. The arch rib frame suitable for various terrains according to claim 1, characterized in that: The retractable support leg includes an upper support leg, a lower support leg, and a middle support leg. The upper support leg has an upper receiving cavity vertically arranged from the bottom center upwards, and an upper adjusting nut is fixed below it. The lower support leg has a lower receiving cavity vertically arranged from the top center downwards, and a lower adjusting nut is fixed above it. The middle support leg can be screwed into the upper adjusting nut and the lower adjusting nut, and extends into the upper receiving cavity of the upper support leg and the lower receiving cavity of the lower support leg. A pin hole is provided in the middle.

5. The arch rib frame suitable for various terrains according to claim 4, characterized in that: An upper fixing plate is fixedly connected to the upper support leg, and the upper fixing plate is connected to the support beam.

6. The arch rib frame suitable for various terrains according to claim 4, characterized in that: A lower fixing plate is fixedly connected to the lower support leg, and the lower fixing plate is connected to the rotatable support.

7. The arch rib frame suitable for various terrains according to claim 5, characterized in that: Upper support legs are provided with stiffening plates on the left and right sides and / or front and rear sides of the top of the upper support leg, and the upper side of the stiffening plate is connected to the upper fixing plate.

8. The arch rib frame suitable for various terrains according to claim 1, characterized in that: The top surface of the positioning mechanism is an arc-shaped groove that matches the arch rib chord.

9. The arch rib frame suitable for various terrains according to claim 1, characterized in that: The positioning mechanism is provided with stiffening plates on both the front and rear sides.

10. The arch rib frame suitable for various terrains according to claim 1, characterized in that: The supporting beam is made of double-I-beams.

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