Combined bridge deck slab access hole of bridge

Abstract

The invention discloses a bridge combined bridge deck access hole which comprises an inner hole and an outer hole which are in regular shapes, the center of the inner hole coincides with the center of the outer hole, the inner hole is provided with an air-tight door for daily passage of maintainers, and the outer hole is formed by reserving a cutting line on a bridge deck and is used for transporting large equipment. The inner hole and the outer hole with the coincident centers are formed, the outer hole is a reserved cutting line, and the steel-concrete combined component and the steel structure reinforcing component are arranged at the access hole, so that equipment transportation and hoisting are facilitated, the structural strength is improved, large equipment can conveniently enter a bridge, and meanwhile, the bridge safety is guaranteed.

Description

Technical Field

[0001] The present invention belongs to the technical field of bridge manufacturing, and particularly relates to an inspection hole for a composite bridge deck of a bridge. Background Art

[0002] With the development of bridge technology, composite bridge decks have gradually become a new type of bridge deck. The upper layer of this bridge deck is a reinforced concrete structure, and the lower layer is a steel structure. The two are combined through force-transferring components and are stressed as a whole, having the characteristics of relatively light self-weight and good stress performance. For large-scale and intelligent bridges, large equipment such as distribution boxes needs to be installed inside the bridge. During operation, the equipment needs to be replaced. Correspondingly, inspection holes for large equipment to enter need to be provided on the bridge. The conventional method is to set inspection holes on the steel plates at the bottom or side of the bridge. For the case of setting inspection holes at the bottom or side of the bridge, there is often a river passing under the bridge, and there are also influencing factors such as high-grade roads where traffic interruption is not allowed. When hoisting large equipment into the beam from the bottom or side, it will be very difficult. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide an inspection hole for a composite bridge deck of a bridge to solve the deficiencies in the prior art.

[0004] To achieve the above purpose, the present invention is realized through the following technical solutions:

[0005] Provide an inspection hole for a composite bridge deck of a bridge, which includes a regularly shaped inner hole and outer hole provided on the bridge deck. The centers of the inner hole and the outer hole coincide. The inner hole has a sealed door for daily passage of maintenance personnel, and the outer hole is formed by reserving a cutting line on the bridge deck for transporting large equipment.

[0006] As the inspection hole for the composite bridge deck of the bridge, a circular reinforcing rib is provided at the edge of the inner hole.

[0007] As the inspection hole for the composite bridge deck of the bridge, an opening plate is provided on the circular reinforcing rib of the inner hole as a connecting component.

[0008] As the inspection hole for the composite bridge deck of the bridge, a plate-shaped reinforcing rib is provided on the outside of the outer hole.

[0009] As the inspection hole for the composite bridge deck of the bridge, the inner hole is a kidney-shaped hole, and the outer hole is a rectangular hole.

[0010] The beneficial effects of the technical solution of the present invention are:

[0011] 1. An inspection hole for a composite bridge deck of a bridge is realized, enabling large equipment to conveniently enter the interior of the bridge while ensuring the safety of the bridge;

[0012] 2. An inspection hole is provided on the bridge deck slab, i.e., on the top surface of the main girder. Compared with opening holes on the side or bottom surface, transportation and hoisting are convenient and safe.

[0013] 3. The inspection hole is divided into an inner hole and an outer hole. The inner hole is convenient to open, and the outer hole has a large area, facilitating the passage of large equipment.

[0014] 4. An opening plate is provided on the stiffening steel plate of the inner hole, stiffening steel plates are provided at the edge position of the inner hole, and stiffening steel plates are provided on the outer side of the edge of the outer hole, improving the strength of the bridge deck slab.

[0015] 5. The concrete part of the bridge deck slab is poured in two times. The concrete bridge deck slab within the cutting line of the outer hole is poured separately for the second time. When transporting equipment, only a small area of concrete is cut, without affecting the strength of the concrete bridge deck slab. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To further illustrate the above-mentioned objects, structural features and effects of the present invention, the present invention will be described in detail below with reference to the drawings.

[0017] Figure 1 It is a plan view of the inspection hole of the preferred embodiment of the present invention;

[0018] Figure 2 It is a sectional view of the inspection hole of the preferred embodiment of the present invention;

[0019] In the figure: 1. Inner hole; 2. Outer hole; 3. Sealed door; 4. Annular stiffener; 5. Connecting member; 6. Plate-shaped stiffener. DETAILED DESCRIPTION OF THE INVENTION

[0020] The term "invention" and "the present invention" as used in this specification are intended to generally refer to all the subject matters of this specification and any of the following patent claims. Statements containing these terms should not be construed as limiting the subject matter described herein or the meaning or scope of any of the following patent claims. In addition, this specification does not attempt to describe or limit the subject matter covered by any specific component, paragraph, statement or claim of this application. The subject matter should be understood with reference to the entire specification, all the drawings and any of the following claims. The present invention may have other embodiments and may be practiced or implemented in other ways. Moreover, it should be understood that the wording and terms used herein are for the purpose of illustration and should not be considered as limiting.

[0021] Details of the present invention will now be discussed with reference to the drawings which illustrate the invention by way of example only. In the drawings, like features or components may be labeled with the same reference numerals.

[0022] As used herein, the use of "comprising", "having", "including" and their variants means including the items listed hereinafter, their equivalents and additional items. Although directions such as above, below, upward, downward, backward, bottom, top, front, back, etc. may be referred to in the description of the drawings, for convenience, they are referred to with respect to the drawings. These directions are not intended to be literally accepted or limit the present invention in any form. In addition, terms such as "first", "second", "third", etc. are used herein for illustrative purposes and are not intended to indicate or imply importance or significance.

[0023] Refer to Figure 1 and Figure 2 As shown, in the preferred embodiment, the inspection hole of the combined bridge deck of the present invention includes an inner hole 1 and an outer hole 2 with regular shapes provided on the bridge deck. The centers of the inner hole 1 and the outer hole 2 coincide. The inner hole 1 has a sealed door 3 for daily passage of maintenance personnel and has a high usage frequency. The outer hole 2 is formed by reserving a cutting line on the bridge deck for transporting large equipment to be replaced, which is used about once every 15 - 20 years. A cutting line is reserved on the bridge deck and is cut along the cutting line during use.

[0024] An annular reinforcing rib 4 is provided at the edge of the inner hole 1, and an opening plate is provided on the annular reinforcing rib 4 of the inner hole 1 as a bonding member 5. The bonding member 5 is a steel - concrete bonding member, and a plate - type reinforcing rib 6 (reinforcing steel plate) is provided on the outside of the outer hole 2. The inspection hole is provided with a steel - concrete bonding member and a steel - structure reinforcing member to meet the stress requirements of the bridge deck and ensure that the stress performance of the combined bridge deck is not reduced after the inspection opening is set.

[0025] The inner hole 1 is preferably a kidney - shaped hole, and the outer hole 2 is preferably a rectangular hole.

[0026] Refer to Figure 2 As shown, the concrete bridge deck is poured in two times, wherein the concrete bridge deck within the cutting line range of the outer hole is the second pouring, and other concrete is the first pouring.

[0027] The present invention is different from the practice of opening a single hole on the bottom and side of the bridge and arranging a circle of circumferential stiffening steel plates. An inspection hole for equipment hoisting is provided on the bridge deck, and a steel - concrete bonding member and a steel - structure reinforcing member are correspondingly provided, solving the problems that it is difficult to transport large equipment through the inspection hole of the bridge and it affects the structural safety. Large equipment can conveniently enter the interior of the bridge while ensuring the safety of the bridge.

[0028] The above is only the preferred embodiment of the present invention, and does not limit the implementation manners and protection scope of the present invention. For those skilled in the art, it should be realized that all equivalent replacements and obvious changes made by using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A bridge composite deck inspection hole, characterized in that: It includes an inner hole and an outer hole with regular shapes arranged on the bridge deck, the centers of the inner hole and the outer hole coincide with each other, the inner hole has a closed door for daily passage of maintenance personnel, and the outer hole is formed by reserving cutting lines on the bridge deck for transporting large equipment.

2. The bridge composite deck inspection hole according to claim 1, characterized in that: An annular reinforcing rib is arranged on the edge of the inner hole.

3. The bridge composite deck inspection hole according to claim 2, characterized in that: An opening plate is arranged on the annular reinforcing rib of the inner hole as a combining component.

4. The bridge composite deck inspection hole according to claim 1, characterized in that: A plate-type reinforcing rib is arranged outside the outer hole.

5. The bridge composite deck inspection hole according to claim 1, characterized in that: The inner hole is a waist-shaped hole, and the outer hole is a rectangular hole.

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