A decorative structure installation system and installation method for concrete bridges

Abstract

This invention discloses a decorative structure installation system and method for concrete bridges, comprising at least base anchor bolts and a decorative structural steel base installed on the base anchor bolts. The base anchor bolts include: a base, on which multiple anchor bolts are arranged along the outer edge; the decorative structural steel base includes: a decorative structural steel member, with a bottom steel plate and a top steel plate corresponding to the anchor bolts at intervals on the lower part of the decorative structural steel member; adjustment grooves are provided on the bottom steel plate and the top steel plate corresponding to each anchor bolt; a lower adjusting nut is provided on the bottom of the bottom steel plate corresponding to each anchor bolt, and an upper adjusting nut is provided on the top of the top steel plate corresponding to each anchor bolt; the adjustment grooves of the bottom steel plate and the top steel plate of the decorative structural steel base pass between the lower and upper adjusting nuts of the corresponding anchor bolts. This invention can be used to connect decorative steel structures of various shapes to main beams, while improving the installation accuracy of decorative steel structures and reducing construction difficulty.

Description

Technical Field

[0001] This invention belongs to the field of bridge ancillary facilities, and particularly relates to decorative structures on concrete bridges. Background Technology

[0002] To balance aesthetics and cost-effectiveness, many bridges incorporate decorative structures such as arches and towers. These components are typically non-load-bearing steel members. This structural form not only meets aesthetic requirements but is also inexpensive, thus gaining widespread use.

[0003] For the connection between concrete bridges and decorative steel components, and the connection between steel component segments, a fixed connection is generally adopted. On-site construction precision control is difficult, and it is difficult to correct the deviation after installation errors occur, especially the corner error. As the number of installed segments increases, the error continues to accumulate, which makes it difficult to close the bridge. Summary of the Invention

[0004] To address the above problems, this invention provides a decorative structure installation system and method for concrete bridges.

[0005] To achieve the above objectives, the present invention provides a decorative structure installation system for concrete bridges, characterized in that it includes at least a base anchor bolt and a decorative structure steel base installed on the base anchor bolt;

[0006] The base anchor bolt includes: a base, on which multiple anchor bolts are arranged along the outer edge;

[0007] The decorative structural steel base includes: a decorative structural steel component, with a bottom steel plate and a top steel plate for the anchor bolts at intervals on the lower part of the decorative structural steel component; and an adjustment groove for each anchor bolt on the bottom steel plate and the top steel plate of the anchor bolts.

[0008] A lower adjusting nut is provided at the bottom of the bottom steel plate of the corresponding steel component on each anchor bolt, and an upper adjusting nut is provided at the top of the top steel plate of the corresponding anchor bolt; the adjusting grooves of the bottom steel plate of the steel component and the top steel plate of the anchor bolt of the decorative structure steel base are inserted between the lower adjusting nut and the upper adjusting nut of the corresponding anchor bolt.

[0009] Furthermore, the base includes an anchor bolt base plate and an anchor bolt fixing steel plate spaced apart from the base plate; the bottom of the anchor bolt is disposed on the anchor bolt base plate; and the anchor bolt steel plate is disposed in the middle of the anchor bolt.

[0010] Furthermore, it also includes a concrete base on the main beam, which is cast together with the concrete main beam to form an integral whole; the top of the reinforced concrete base is perpendicular to the axis of the decorative structural steel component.

[0011] Furthermore, the decorative structural steel component is filled with micro-expansion concrete and wrapped with welded steel mesh, a secondary reinforced concrete base, and a steel plate protective cover.

[0012] Furthermore, high-strength grout is used to fill the space between the bottom steel plate of the steel component and the reinforced concrete base.

[0013] To achieve the above objectives, the present invention provides a method for installing decorative structures on concrete bridges, characterized in that the method comprises the following steps:

[0014] 1. Prepare the base anchor bolts and decorative structure steel base in the above-mentioned decorative structure installation system on the concrete bridge;

[0015] 2. Tie the reinforcing bars in the concrete main beam and the reinforced concrete base, pre-embed the base anchor bolts, weld the steel mesh, and weld the vertical bars in the steel mesh; pour the base concrete;

[0016] 3. Hoist the decorative structure steel base into place. Each anchor bolt on the pre-embedded base anchor bolt passes through the bottom steel plate of the steel component and the top steel plate of the anchor bolt. Adjust the vertical and angular errors of the decorative structure steel component by adjusting the adjusting nut under the middle anchor bolt. After the installation position is confirmed to be correct, install the adjusting nut on the top steel plate of the anchor bolt for temporary fixation.

[0017] Furthermore, it also includes the following steps:

[0018] High-strength grout is injected between the steel plate at the bottom of the steel component and the reinforced concrete base, and the reinforcing bars in the steel mesh are tied and welded. After the high-strength grout reaches its strength, the second-stage reinforced concrete base concrete and the micro-expansion concrete inside the decorative steel component are poured. After the concrete strength reaches the required level, the temporary fixing measures are removed and the steel plate protective cover is welded.

[0019] This invention connects the main beam and the bottom of the steel component using anchor bolts. Axial and angular errors of the steel component are adjusted by rotating the anchor bolt nuts, and horizontal errors are adjusted by changing the position of the anchor bolts on the bottom plate of the steel component. This invention can be used to connect decorative steel structures of various shapes to the main beam, while improving the installation accuracy of decorative steel structures and reducing construction difficulty. It can be widely applied in bridge ancillary projects. Attached Figure Description

[0020] Figure 1 This is an elevation view of the base connection system of the present invention;

[0021] Figure 2 This is a detailed drawing of the base anchor bolt system of the present invention;

[0022] Figure 3 This is a top view of the lower end of the base anchor bolt system of the present invention;

[0023] Figure 4 This is a top view of the base anchor system of the present invention;

[0024] Figure 5 This is a flowchart illustrating the construction process of the present invention. Detailed Implementation

[0025] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0026] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 invention.

[0027] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0028] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] This invention mainly includes: a concrete base on the main beam, a decorative steel base, and a base anchor system. The concrete base on the main beam and the decorative steel base are connected by base anchors, which can be used to connect decorative steel components of various shapes to the main beam. Installation errors can be adjusted by adjusting the anchor nuts to ensure installation accuracy.

[0030] Concrete base on the main beam: The reinforced concrete base 1 is cast together with the concrete main beam to form a whole, providing a fixed position for the steel base of the decorative component. The top of the reinforced concrete base 1 should be perpendicular to the axis of the decorative structural steel component 12. Within the range corresponding to the bottom steel plate 7 of the steel component, a welded steel mesh 116 is provided to disperse the reaction force transmitted from the bottom of the decorative structure, and a pre-reserved groove for shear keys 16 is provided. The top of the reinforced concrete base 1 outside the range of the bottom steel plate 7 of the steel component should be serrated to ensure better integration with the secondary concrete base 15 into a whole.

[0031] Decorative structural steel base: The bottom of the decorative structural steel component 12 is provided with a bottom steel plate 7 and an anchor bolt top steel plate 13, with steel stiffening ribs 18 evenly distributed along the outer wall of the decorative structural steel component 12 between them. Above the anchor bolt top steel plate 13, there are steel stiffening ribs 210, which correspond one-to-one with the steel stiffening ribs 18. Below the bottom steel plate 7, there are shear keys 16. The interior of the decorative structural steel component 12 is filled with micro-expansion concrete 11, and the exterior is covered with welded steel mesh 29, a secondary reinforced concrete base 15, and a steel plate protective cover 18. The steel plate protective cover 18 prevents water from seeping in after cracks appear between the decorative structural steel component 12 and the secondary reinforced concrete base 15. The space between the bottom steel plate 7 and the reinforced concrete base 1 is filled with high-strength grout 17.

[0032] Base anchor system: Anchor 5 has an anchor bottom steel plate 2 and an anchor bottom stiffening plate 3 at its bottom, and an anchor fixing steel plate 4 in the middle, all of which are pre-embedded in the reinforced concrete base 1. An anchor nut 6 is provided between the anchor 5 and the steel component bottom steel plate 7 and the reinforced concrete base 1. The vertical and angular errors of the decorative structural steel component 12 can be adjusted by adjusting the position of the anchor nut 6 on the anchor 5. The top of the anchor 5 passes through the anchor top steel plate 13 and is fixed to the decorative structural steel component 12 by the perforated steel pad 14 and the anchor nut 6.

[0033] The construction and installation steps of this invention are described below:

[0034] Step 1: Construction Preparation Stage: Prepare all necessary materials and process them into shape. Weld anchor bolt bottom steel plate 2 to the bottom of anchor bolt 5, and then weld anchor bolt bottom stiffening plate 3 for fixation; insert anchor bolt fixing steel plate 4 into anchor bolt 5, and install the middle anchor bolt nut 6. Weld one steel component bottom steel plate 7 and one anchor bolt top steel plate 13 to the bottom of decorative structural steel component 12, and weld steel component stiffening rib 18 and steel component stiffening rib 210 between them, which correspond one-to-one with steel component stiffening rib 18. Weld shear key 16 below steel component bottom steel plate 7.

[0035] Step 2: Concrete Foundation Construction Stage: Tie the reinforcing bars of the concrete main beam and the reinforced concrete foundation 1, pre-embed the foundation anchor bolt system components welded in the previous stage, and pre-embed the vertical bars in the welded steel mesh 116 and welded steel mesh 29. Pour the foundation concrete.

[0036] Step 3: Hoisting and Installation Stage: Hoist the pre-welded steel structure base from Step 1 into place. Anchor bolts 5 pass through the bottom steel plate 7 and top steel plate 13 of the steel component. Adjust the vertical and angular errors of the decorative steel component 12 by adjusting the anchor bolt nut 6 in the middle. After confirming the installation position is correct, install the perforated steel pad 14 on the top steel plate 13 of the anchor bolt and the anchor bolt nut 6, taking temporary fixing measures.

[0037] Part Four: Secondary Concrete Construction Stage. High-strength grout 17 is injected between the steel plate 7 of the steel component base and the reinforced concrete base 1, and the reinforcing bars in the welded steel mesh 29 are tied and welded. After the high-strength grout 17 reaches its strength, the secondary reinforced concrete base 15 and the micro-expansion concrete 11 inside the decorative steel component are poured. After the concrete strength reaches the required level, the temporary fixing measures are removed, and the steel plate protective cover 18 is welded.

[0038] This invention has the following characteristics:

[0039] 1. The present invention consists of three parts: a concrete base on the main beam, a decorative steel base, and a base anchor system.

[0040] 2. This invention can be used to connect decorative steel components of various shapes to main beams.

[0041] 3. This invention can adjust the installation error by adjusting the anchor bolt nut, ensuring installation accuracy and reducing construction difficulty.

[0042] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0043] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A method of installing a decorative structure mounting system on a concrete bridge, characterized by, The mounting system comprises at least a base anchor and a decorative structural steel base mounted on the base anchor; The base anchor comprises a base on which a plurality of anchors are arranged along the outer edge; The decorative structural steel base comprises a decorative structural steel member, a steel member bottom plate and an anchor top steel plate are arranged at the lower part of the decorative structural steel member in correspondence with the anchor spacing; an adjusting groove is arranged on the steel member bottom plate and the anchor top steel plate in correspondence with each anchor; A lower adjusting nut is arranged on the steel member bottom plate in correspondence with the bottom of each anchor, and an upper adjusting nut is arranged on the anchor top steel plate in correspondence with the top of each anchor; the adjusting groove of the steel member bottom plate and the anchor top steel plate of the decorative structural steel base is arranged between the lower adjusting nut and the upper adjusting nut of the corresponding anchor; The concrete base on the main beam is formed integrally by pouring the reinforced concrete base together with the concrete main beam; the top of the reinforced concrete base is perpendicular to the axis of the decorative structural steel member; The decorative structural steel member is filled with micro-expanding concrete, and the outside is wrapped with welded steel mesh, secondary reinforced concrete base and steel plate protective cover; The steel member bottom plate is filled with high-strength grouting material between the steel member bottom plate and the reinforced concrete base; The mounting method of the decorative structure on the concrete bridge comprises the following steps: 1) preparing the base anchor and the decorative structural steel base in the mounting system of the decorative structure on the concrete bridge; 2) binding the steel bars in the concrete main beam and the reinforced concrete base, pre-burying the base anchor, welding the steel mesh and the vertical steel bars in the steel mesh, and pouring the base concrete; 3) hoisting the decorative structural steel base into position, passing each anchor on the base anchor through the steel member bottom plate and the anchor top steel plate, adjusting the vertical and angular errors of the decorative structural steel member by adjusting the lower adjusting nut of the anchor, and installing the upper adjusting nut of the anchor on the anchor top steel plate for temporary fixing after the installation position is determined; The method further comprises the following steps: Injecting high-strength grouting material between the steel member bottom plate and the reinforced concrete base, binding the steel bars in the steel mesh, pouring the secondary reinforced concrete base concrete and the micro-expanding concrete in the decorative steel member after the high-strength grouting material reaches the required strength, and removing the temporary fixing measures and welding the steel plate protective cover after the concrete strength reaches the required strength; The base comprises an anchor bottom plate and an anchor fixing steel plate arranged in correspondence with the bottom plate; the bottom of the anchor is arranged on the anchor bottom plate; and the anchor fixing steel plate is arranged at the middle part of the anchor.

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