Novel shearing force piece suitable for being installed and used on arc-shaped face of cylindrical pier

Abstract

The utility model belongs to the technical field of bridge construction, and particularly relates to a novel shearing force piece suitable for being installed and used on an arc-shaped surface of a cylindrical pier, which comprises a hoop, a plurality of connecting rods, a plurality of connecting rods and a plurality of connecting rods, and is characterized in that the hoop is composed of hoop bodies symmetrically arranged on two sides of the cylindrical pier; the finish rolling deformed steel bars penetrate through the cylindrical pier and the hoop body; the two ends of the finish rolling deformed steel bar are each provided with a base plate. A nut which is in threaded fit with the finish rolling deformed steel bar is arranged on the outer side of the base plate; and the plurality of climbing cones are pre-buried in the cylindrical pier. The plurality of finish rolling deformed steel bars provide larger horizontal pressure in advance, and the plurality of climbing cones provide vertical support, so that the plurality of finish rolling deformed steel bars and the plurality of climbing cones are matched with each other to stably and firmly fix the two hoop bodies of the hoop on the outer wall of the cylindrical pier, and the tight boxes at the inner ends of the hoop bodies are tightly attached to the outer wall of the cylindrical pier. The contact area of the hoop body and the cylindrical pier can be increased, and the shear resistance and the loading capacity are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge construction, and in particular relates to a novel shearing member suitable for installation on an arc surface of a cylindrical pier. Background Art

[0002] At present, with the continuous development of the bridge construction industry, domestic highway traffic has been increasingly applied to current road construction under complex geological and topographical conditions. Due to its low investment cost and low construction difficulty, continuous cast-in-place beams are increasingly used in current road construction, and their proportion in construction is increasing. Under such a background, the conventional support construction methods of continuous cast-in-place beam bridges are column type and bracket type. Among them, the column type is suitable for conditions with good geology and low pier height. The column welding quality is difficult to guarantee, and the foundation forming quality requirements are high. Both early settlement and later uneven settlement are difficult to control, so it is difficult to implement on complex terrain. For complex geological and topographical conditions or high piers, the bracket type is generally used. The bracket type generally sets a shear key on the pier body as a support structure. The common method is to slot the pier body, and the shear key is fixed to the pier body through a slot box and a tie rod. However, the removal of the shear key requires the pier body to be repaired, and the cutting of the pier body steel bars during construction affects its force. Especially for the cylindrical piers commonly seen on highways, the slope is an arc surface, the slot box processing is complicated and the repair is troublesome after the pier body is slotted. The slot box cannot be turned over, making it a disposable consumable, wasting manpower and material resources. In addition, the reserved slot requires cutting the template, which causes loss to the template and affects the later construction of the template.

[0003] CN217733788U discloses a new type of shear key for a cylindrical pier, which includes a shear key body, a through hole for a through-core screw to pass through, one end of the shear key body is installed in a cylindrical pier for construction, and the other end of the shear key body is installed in a semi-hoop for erecting a temporary bracket. The new type of shear key for a cylindrical pier disclosed in the patent increases the force-bearing surface of the through-core screw, the cylindrical pier and the semi-hoop, and reduces the pressure borne by the contact surface of the through-core screw, the cylindrical pier and the semi-hoop. It is undeniable that the new type of shear key for a cylindrical pier disclosed in the patent can indeed achieve the above-mentioned effect, but it still has certain shortcomings: it only relies on three through-core screws to fix the semi-hoop, and the load capacity is limited; in addition, the shape and structure of the shear key body are more troublesome to process, and a shear-resistant component must be set on the shear key body, which further increases the degree of trouble in processing.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0005] The purpose of the present utility model is to provide a new type of shear member suitable for installation on the arc surface of a cylindrical pier, so as to solve the problems existing in the new shear key of the cylindrical pier in the background art.

[0006] To achieve the above object, the present utility model provides the following technical solutions:

[0007] A new type of shear member suitable for installation on the arc surface of a cylindrical pier, comprising:

[0008] A hoop, the hoop is composed of hoop bodies symmetrically arranged on both sides of the cylindrical pier;

[0009] Multiple high-strength threaded steel bars, the high-strength threaded steel bars penetrate through the cylindrical pier and the hoop body; one backing plate is installed at each end of the high-strength threaded steel bar, and the backing plate abuts against the outer end face of the hoop body; a nut threadedly engaged with the high-strength threaded steel bar is provided outside the backing plate;

[0010] Multiple climbing cones, the climbing cones are embedded in the cylindrical pier, and the hoop body is fixed on the cylindrical pier by using climbing cone bolts corresponding to the climbing cones.

[0011] Preferably, the inner end of the hoop body has an arc surface corresponding to the outer wall of the cylindrical pier.

[0012] Preferably, the hoop body includes an arc-shaped inner end plate attached to the outer wall of the cylindrical pier and extending along its axial direction, a sealing end plate fixed to the top of the inner end plate and extending horizontally, two parallel and spaced vertical load-bearing plates with the inner end fixedly connected to the outside of the inner end plate and the top fixedly connected to the sealing end plate, and a vertical outer end plate fixed to the outer side of the upper half of the load-bearing plate. Among them, a plurality of first fixing holes corresponding to the high-strength threaded steel bars are evenly spaced on the upper half of the inner end plate and the outer end plate, and a plurality of second fixing holes corresponding to the climbing cones are evenly spaced on the lower half of the inner end plate.

[0013] Preferably, transverse stiffening plates and vertical stiffening plates are welded on the inner wall of the arc-shaped inner end plate.

[0014] Preferably, the first fixing holes are spaced at least two rows up and down, with at least four in each row; the second fixing holes are spaced at least two rows up and down, with at least three in each row.

[0015] Preferably, pipes corresponding to the high-strength threaded steel bars are embedded in the cylindrical pier.

[0016] Compared with the prior art, the present utility model has the following beneficial effects:

[0017] The utility model is provided with a plurality of components such as a hoop, a plurality of high-strength deformed bars and a plurality of climbing cones. The plurality of high-strength deformed bars pre-provide a large horizontal pressure, and the plurality of climbing cones provide vertical support. In this way, the plurality of high-strength deformed bars and the plurality of climbing cones cooperate with each other to stably and firmly fix the two hoop bodies of the hoop on the outer wall of the cylindrical pier. Moreover, the inner ends of the hoop bodies are closely and tightly attached to the outer wall of the cylindrical pier, which can increase the contact area between the hoop bodies and the cylindrical pier and improve its shear resistance and load-bearing capacity. In addition, the components in the whole structure are convenient to process, and are easy to install, disassemble and reuse. The construction is convenient, and the appearance of the cylindrical pier can be easily restored after construction, and the influence on the appearance of the pier body is small after grouting and plugging. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 is Figure 1 an enlarged view of part A in

[0020] Figure 3 is Figure 1 the top view of

[0021] Figure 4 is a cross-sectional view of the hoop body of the utility model.

[0022] MAIN REFERENCE NUMERALS DESCRIPTION:

[0023] 1. Hoop; 11. Hoop body; 111. Inner end plate; 112. Sealing end plate; 113. Load-bearing plate; 114. Outer end plate; 115. First fixing hole; 116. Second fixing hole; 117. Transverse stiffening plate; 118. Vertical stiffening plate;

[0024] 2. Cylindrical pier; 21. Pipeline;

[0025] 3. High-strength deformed bar; 31. Base plate; 32. Nut;

[0026] 4. Climbing cone; 41. Climbing cone bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following clearly and completely describes the technical solutions of the patent of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work belong to the scope protected by the utility model.

[0028] Example

[0029] Refer to the attached Figures 1-4, a new type of shear piece suitable for installation on the arc surface of a cylindrical pier, comprising:

[0030] A hoop 1, which is composed of hoop bodies 11 symmetrically arranged on both sides of the cylindrical pier 2; Figure 3 It can be clearly seen that the inner end of the hoop body 11 has an arc surface corresponding to the outer wall of the cylindrical pier 2, so that the inner end of the hoop body 11 can closely fit the outer wall of the cylindrical pier 2;

[0031] Multiple high-strength deformed bars 3, the high-strength deformed bars 3 penetrate through the cylindrical pier 2 and the hoop body 11; a backing plate 31 is installed at each end of the high-strength deformed bar 3, and the backing plate 31 abuts against the outer end face of the hoop body 11; a nut 32 that is threadedly engaged with the high-strength deformed bar 3 is provided on the outer side of the backing plate 31. In this embodiment, 2 nuts 32 are respectively provided at both ends of the high-strength deformed bar 3; during actual construction, a pipeline 21 corresponding to the high-strength deformed bar 3 is pre-embedded in the cylindrical pier 2;

[0032] Multiple climbing cones 4, the climbing cones 4 are pre-embedded in the cylindrical pier 2, and the hoop body 11 is fixed to the cylindrical pier 2 by using climbing cone bolts 41 corresponding to the climbing cones 4.

[0033] In this embodiment, the hoop body 11 includes an arc-shaped inner end plate 111 that fits against the outer wall of the cylindrical pier 2 and extends along its axis, a sealing end plate 112 that is fixed to the top of the inner end plate 111 and extends horizontally outward, 2 parallel and spaced vertical load-bearing plates 113 whose inner ends are fixedly connected to the outside of the inner end plate 111 and whose tops are fixedly connected to the sealing end plate 112, and a vertical outer end plate 114 that is fixed to the outer side of the upper half of the load-bearing plate 113. Among them, multiple first fixing holes 115 corresponding to the high-strength deformed bars 3 are evenly spaced on the upper half of the inner end plate 111 and the outer end plate 114, and multiple second fixing holes 116 corresponding to the climbing cones 4 are evenly spaced on the lower half of the inner end plate 111; in order to improve the load-bearing capacity of the hoop body 11, transverse stiffening plates 117 and vertical stiffening plates 118 are welded on the inner wall of the arc-shaped inner end plate 111.

[0034] In addition, in this embodiment, the first fixing holes 115 are spaced at least 2 rows up and down, and at least 4 in each row; the second fixing holes 116 are spaced at least 2 rows up and down, and at least 3 in each row.

[0035] During construction, when the cylindrical pier 2 is being poured, holes are drilled at the template positions corresponding to the precision rolled threaded steel 3 and the climbing cones 4, and the pipes 21 (in actual construction, the pipes 21 are steel pipes) and the climbing cones 10 are installed. The openings of the pipes 21 are flush with the outer surface of the cylindrical pier 2. Then, the inner end plate 111, the end sealing plate 112, the load-bearing plate 113, the outer end plate 114, the transverse stiffening plate 117 and the vertical stiffening plate 118 are welded according to the connection relationship described above, and a plurality of first fixing holes 115 corresponding to the precision rolled threaded steel 3 are evenly spaced in the upper half of the inner end plate 111 and the outer end plate 114, and a plurality of second fixing holes 116 corresponding to the climbing cones 4 are evenly spaced in the lower half of the inner end plate 111.

[0036] After hoisting the hoop body 11 to the positions corresponding to the precision rolled threaded steel 3 and the climbing cones 4, the precision rolled threaded steel 3 is passed through the first fixing holes 115 at the corresponding positions on the inner end plate 111 and the outer end plate 114 and the pipes 21 at the corresponding positions. Then, the backing plates 31 are placed at both ends of the precision rolled threaded steel 3. The backing plates 31 abut against the outer end plate 114, and two nuts 32 threadedly engaged with the precision rolled threaded steel 3 are threadedly connected to the outside of the backing plates 31. The nuts 32 tightly abut against the backing plates 31. Then, the climbing cone bolts 41 are passed through the second fixing holes 116 and threadedly connected to the corresponding climbing cones 4. In this way, multiple precision rolled threaded steels 3 provide a relatively large horizontal pressure in advance, and multiple climbing cones 4 provide vertical support. In this way, multiple precision rolled threaded steels 3 and multiple climbing cones 4 cooperate with each other to stably and firmly fix the two hoop bodies 11 of the hoop 1 on the outer wall of the cylindrical pier 2, and the inner ends of the hoop bodies 11 are closely attached to the outer wall of the cylindrical pier 2.

[0037] After the construction of the upper beam is completed, the upper temporary structure is removed, the climbing cone bolts 41, the nuts 32, the backing plates 31 and the precision rolled threaded steel 3 are removed, and the embedded pipes 21 are grouted and sealed.

[0038] The foregoing description of the specific exemplary embodiments of the present invention is for purposes of illustration and exemplification. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations are possible in light of the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical applications, so that those skilled in the art can implement and utilize the various different exemplary embodiments of the present invention, as well as various different selections and changes. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A new type of shear member suitable for installation on the arc surface of a cylindrical pier, characterized in that: include: A hoop, the hoop consisting of a hoop body symmetrically arranged on both sides of the cylindrical pier; A plurality of fine-rolled threaded steel bars, wherein the fine-rolled threaded steel bars penetrate the cylindrical pier and the clamp body; a pad is installed at each end of the fine-rolled threaded steel bars, wherein the pad abuts against the outer end surface of the clamp body; a nut matching the thread of the fine-rolled threaded steel bars is provided on the outer side of the pad; A plurality of climbing cones are pre-buried in the cylindrical pier, and the clamp body is fixed on the cylindrical pier by using climbing cone bolts corresponding to the climbing cones.

2. The novel shear member for installation on the arc surface of a cylindrical pier according to claim 1 is characterized in that: The inner end of the hoop body has a curved surface corresponding to the outer wall of the cylindrical pier.

3. The novel shear member for installation on the arc surface of a cylindrical pier according to claim 1 is characterized in that: The clamp body includes an arc-shaped inner end plate which is attached to the outer wall of the cylindrical pier and extends axially thereof, a sealing end plate which is fixed to the top of the inner end plate and extends horizontally, two parallel and spaced vertical load-bearing plates whose inner ends are fixedly connected to the outer side of the inner end plate and whose top ends are fixedly connected to the sealing end plate, and a vertical outer end plate fixed to the outer side of the upper half of the load-bearing plate, wherein a plurality of first fixing holes corresponding to the fine-rolled threaded steel are evenly spaced on the upper half of the inner end plate and the outer end plate, and a plurality of second fixing holes corresponding to the climbing cone are evenly spaced on the lower half of the inner end plate.

4. The novel shear member for installation on the arc surface of a cylindrical pier according to claim 3 is characterized in that: A transverse stiffening plate and a vertical stiffening plate are welded on the inner wall of the arc-shaped inner end plate.

5. The novel shear member for installation on the arc surface of a cylindrical pier according to claim 3 is characterized in that: The first fixing holes are arranged in at least two rows at intervals from top to bottom, with at least four holes in each row; the second fixing holes are arranged in at least two rows at intervals from top to bottom, with at least three holes in each row.

6. The novel shear member for installation on the arc surface of a cylindrical pier according to claim 1 is characterized in that: A pipe corresponding to the precision-rolled threaded steel bar is pre-buried in the cylindrical pier.

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