Formwork supporting system for pier top coaming construction

Abstract

The utility model provides a pier top coaming construction formwork supporting system which comprises a pier body formwork, a pier top coaming and a pier top coaming, and the upper edge of the pier body formwork is provided with a turnover part corresponding to a top cap; the splicing outer mold is fixed on the outer edge of the folded part of the pier body template and is used for forming the peripheral surface of the pier top coaming; the splicing inner mold is arranged on the inner side of the splicing outer mold and used for forming the inner circumferential surface of the pier top coaming; the splicing outer mold and the splicing inner mold are fixed through opposite tie bars, the splicing outer mold comprises four outer plates which are spliced into a square, and every two adjacent outer plates are fixed through a pull rod; the splicing inner mold is composed of an angle mold and a flat plate, and the adjacent face of the angle mold and the flat plate is a demolding inclined face. The template of the pier top coaming is arranged, and a coaming structure integrated with a pier body can be formed through pouring, so that the problem of traditional hanging fences is thoroughly solved through construction, lower components of a bridge can be constructed more quickly and efficiently, and many quality diseases caused by traditional processes are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-speed railway construction, and in particular relates to a pier top enclosure construction template support system. Background Art

[0002] Traditional railway piers are equipped with suspended fences on both sides. During construction, U-shaped bolts are embedded in the top caps of the piers. The suspended fences are installed after the piers are cast. The installation process is complicated. At the same time, the installation of suspended fences is a high-altitude operation with a high safety risk.

[0003] In the later maintenance and repair, the durability of the suspended fence is poor, and the steel structure bracket is prone to rust. The reinforced concrete step plate is prone to cracking, damage, breakage, and falling off during operation, and the gap between the corner and the angle steel is large, which seriously affects the overall beauty of the bridge structure.

[0004] Therefore, it is necessary to provide an improved technical solution to address the above-mentioned deficiencies in the prior art. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies in the prior art, and the utility model provides a pier top enclosure construction template support system.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A pier top slab construction formwork support system, comprising:

[0008] A pier body template, wherein the upper edge of the pier body template has a folded portion corresponding to the top cap;

[0009] A splicing outer mold, the splicing outer mold is fixed to the outer edge of the folded portion of the pier body template and is used to form the outer peripheral surface of the pier top enclosure plate;

[0010] A splicing inner mold, which is arranged inside the splicing outer mold and is used to form the inner circumference of the pier top enclosure plate;

[0011] The spliced ​​outer mold and the spliced ​​inner mold are fixed by tie rods, and the spliced ​​outer mold includes four outer plates spliced ​​into a square, and two adjacent outer plates are fixed by tie rods;

[0012] The splicing inner mold is composed of an angle mold and a flat plate, and the adjacent surfaces of the angle mold and the flat plate are demoulding inclined surfaces.

[0013] Preferably, longitudinal ribs are evenly distributed on the outside of the spliced ​​outer mold, supporting corbels are provided on the ribs, and pedals are provided above the supporting corbels.

[0014] Preferably, a plurality of horizontally distributed levers are provided on the outer side of the splicing outer mold, and wedge blocks are provided at the ends of the levers. Both ends of the pull rod are respectively passed through the wedge blocks at the ends of two adjacent levers and then connected with locking nuts;

[0015] A side of the wedge block corresponding to the locking nut is provided with a flat surface perpendicular to the axis of the locking nut.

[0016] Preferably, the pair of tie bars include long tie bars and short tie bars, the long tie bars pass through two opposite outer plates, and the long tie bars are provided with stop nuts corresponding to the outer side of the outer plate and the inner side of the inner plate;

[0017] Two ends of the short tie rod pass through the outer plate and the inner plate on one side of the pier top enclosure plate, and stop nuts corresponding to the outer side of the outer plate and the inner side of the inner plate are provided on the short tie rod.

[0018] Preferably, a drainage hole mold is provided between the spliced ​​outer mold and the spliced ​​inner mold, the outer wall of the drainage hole mold is a conical structure, and the smaller end of the drainage hole mold passes through the spliced ​​inner mold from the inside to the outside and then abuts against the inner wall of the spliced ​​outer mold.

[0019] Preferably, the topmost section of the pier body template is a conical transition section that is larger at the top and smaller at the bottom, and an outwardly flipped folded portion is provided on the upper edge of the transition section to form a top cap that extends out of the bottom surface of the circumferential portion of the pier body.

[0020] Beneficial effect: The template for the pier top enclosure is set up, and after pouring, the enclosure structure that is integrated with the pier body can be formed, so that the construction completely solves the problem of traditional hanging fences, and can complete the construction of the lower components of the bridge more quickly and efficiently, avoiding many quality problems caused by traditional processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. Among them:

[0022] Figure 1 A simplified structural diagram of the template support system in a specific embodiment provided by the utility model;

[0023] Figure 2 A schematic top view of a template support system in a specific embodiment of the present invention;

[0024] Figure 3 for Figure 2 Enlarged schematic diagram at point A in the middle.

[0025] In the figure: 1. Pier body; 2. Pier body formwork; 3. Transition section; 4. Splicing outer formwork; 5. Splicing inner formwork; 6. Top cap; 7. Gear bar; 8. Support corbel; 9. Long tie rod; 10. Tie rod; 11. Locking nut; 12. Short tie rod; 13. Pedal; 501. Angle mold; 502. Flat plate; 503. Demolding slope. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0027] In the description of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. The terms "connected" and "connection" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0028] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0029] like Figure 1-3 As shown, a concrete pier top enclosure is provided above the pier under construction. Specifically, the pier includes a pier body 1, a top cap 6 and a supporting cushion stone. A top cap 6 is provided at the upper end of the pier body 1. The upper surface of the top cap 6 is a flat surface. The top cap 6 extends circumferentially out of the outer peripheral surface of the pier body 1, thereby forming a maintenance platform located at the outer periphery of the pier body 1, so that there is no need to install a steel guardrail later in the form of embedded reinforcement. A pier top enclosure is provided on the outer edge of the top cap 6 to form a fence to protect maintenance personnel. A gap is left between the upper edge of the pier top enclosure and the high-speed railway bridge for maintenance personnel to pass through. The maintenance personnel enter the pier top through the gap for maintenance.

[0030] Furthermore, a transition structure (similar to a trumpet or cone) is provided at the upper end of the pier body 1, which is a concrete structure that is larger at the top and smaller at the bottom. The transition structure transitions to the lower surface of the top cap 6 in the form of an inclined transition toward the periphery. The top cap 6 is preferably a square structure. The pier body 1, the top cap 6, the pier top panel and the supporting cushion stone are cast as one piece, and a plurality of expansion joints and drainage holes are distributed circumferentially on the pier top panel.

[0031] For the bridge piers with pier top panels as mentioned above, the present application designs a pier top panel construction formwork support system for the construction of the pier top. The specific support system includes a pier body formwork 2, a spliced ​​outer formwork 4 and a spliced ​​inner formwork 5. The pier body formwork 2 is used to form the pier body 1. The pier body formwork 2 adopts an external truss shaped spliced ​​steel formwork. In the present application, there are no excessive restrictions on the pier body formwork 2. A folded portion corresponding to the top cap 6 is provided on the upper edge of the pier body formwork 2, and the folded portion is used to form the lower surface of the top cap 6.

[0032] The spliced ​​outer mold 4 is fixed to the outer edge of the folded part of the pier body template 2, and is used to form the outer peripheral surface of the pier top enclosure plate; the spliced ​​inner mold 5 is arranged on the inner side of the spliced ​​outer mold 4, and is used to form the inner peripheral surface of the pier top enclosure plate. The gap between the spliced ​​outer mold 4 and the spliced ​​inner mold 5 is adapted to the thickness of the pier top enclosure plate. The spliced ​​outer mold 4 and the spliced ​​inner mold 5 are fixed by tie rods to ensure that the template will not be deformed or displaced during the pouring process, thereby improving the pouring quality.

[0033] The spliced ​​outer mold 4 includes four outer plates spliced ​​into a square shape. The lower edge of the outer plate is fixed to the pier body formwork 2 by fixing bolts, and the two adjacent outer plates (at the corners of the pier top enclosure) are fixed by a tie rod 10; the spliced ​​inner mold 5 is composed of an angle mold 501 and a flat plate 502, and the adjacent surfaces of the angle mold 501 and the flat plate 502 are demoulding slopes 503, which facilitates the disassembly of the inner mold.

[0034] The cross section of the corner mold 501 is L-shaped to form the inner corner of the pier top enclosure. The corner mold 501 and the flat plate 502 are detachably connected by bolts, and the contact surface between the two is a demoulding slope 503, so that the adjacent surfaces of the corner mold 501 and the flat plate 502 will not generate extrusion or friction when the spliced ​​inner mold 5 is deformed, which is convenient for disassembly.

[0035] During the pouring process, first install the spliced ​​outer formwork 4 on the bottom formwork of the top cap 6 (the folded part of the upper edge of the pier body formwork 2), and then cast the top cap 6. After pouring to the set elevation of the top cap 6, install the spliced ​​inner formwork 5. After the top cap 6 has initially set, install the spliced ​​inner formwork 5, and then cast to form the pier top enclosure.

[0036] In an optional embodiment, longitudinal ribs are evenly distributed on the outside of the spliced ​​outer mold 4. The ribs can be angle irons, or strip plates distributed along the longitudinal direction. Support corbels 8 are provided on the ribs, and a pedal 13 is provided above the support corbels 8.

[0037] A connecting plate is provided at one end of the supporting corbel 8 close to the splicing outer form 4, and screw holes are provided on the connecting plate, so that the connecting plate can be detachably fixed to the ribs of the splicing outer form 4 by bolt connection.

[0038] In this embodiment, the topmost section of the pier body formwork 2 is a conical transition section 3 which is larger at the top and smaller at the bottom. The transition section 3 is also made of a plurality of spliced ​​steel formworks to form the pier body 1 and transition to the top cap 6. An outwardly flipped folded portion is provided on the upper edge of the transition section 3 to form the top cap 6 which extends out from the bottom surface of the circumferential portion of the pier body 1.

[0039] The transition section 3 and other sections of the pier body formwork 2 are also provided with longitudinally extending ribs, and the connecting plate on the corresponding supporting corbel 8 at the transition section 3 is an inclined plate adapted to the inclined surface of the outer wall of the transition section 3 .

[0040] In an optional embodiment, a plurality of horizontally distributed levers 7 are provided on the outside of the spliced ​​outer mold 4. The lever 7 may be an I-beam or a square steel. A wedge is provided at the end of the lever 7. Both ends of the pull rod 10 pass through the wedges at the ends of two adjacent levers 7 and are connected with locking nuts 11. A flat surface perpendicular to the axis of the locking nut 11 is provided on one side of the wedge corresponding to the locking nut 11, so that the two adjacent outer panels are stably connected by locking the locking nut 11 and the pull rod 10.

[0041] In the longitudinal direction, three stop rods 7 can be provided to fix the upper, middle and lower positions of the outer panel to ensure that the outer panel will not be deformed during the casting process.

[0042] In an optional embodiment, the tie rods include long tie rods 9 and short tie rods 12. The length of the long tie rods 9 is not less than the width or length of the top cap 6. The long tie rods 9 are used to connect two relatively distributed outer plates. Specifically, the two sections of the long tie rods 9 pass through two relatively outer plates respectively. The long tie rods 9 are provided with stop nuts corresponding to the outer side of the outer plate and the inner side of the inner plate. The long tie rods 9 in the longitudinal direction can be two layers, and each layer of long tie rods 9 is on the same horizontal plane. There can be multiple long tie rods 9 in each layer, for example, 3-6.

[0043] Both ends of the short tie rod 12 pass through the outer plate and the inner plate on one side of the pier top enclosure. Stop nuts corresponding to the outer side of the outer plate and the inner side of the inner plate are provided on the short tie rod 12. On either side of the pier top enclosure, multiple short tie rods 12 are distributed in a plum blossom shape.

[0044] In an optional embodiment, a drain hole mold is provided between the spliced ​​outer mold 4 and the spliced ​​inner mold 5. The drain hole mold is a tapered tube, and the outer wall of the drain hole mold is a tapered structure. The smaller end of the drain hole mold passes through the spliced ​​inner mold 5 from the inside to the outside and then abuts against the inner wall of the spliced ​​outer mold 4. The smaller end of the drain hole mold is tilted downward, and the tilt angle is not less than the slope of its outer wall, so as to ensure smooth drainage.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are within the scope of protection of the pending claims of the present invention.

Claims

1. A pier top slab construction formwork support system, characterized in that: include: A pier body template, wherein the upper edge of the pier body template has a folded portion corresponding to the top cap; A splicing outer mold, the splicing outer mold is fixed to the outer edge of the folded portion of the pier body template and is used to form the outer peripheral surface of the pier top enclosure plate; A splicing inner mold, which is arranged inside the splicing outer mold and is used to form the inner circumference of the pier top enclosure plate; The spliced ​​outer mold and the spliced ​​inner mold are fixed by tie rods, and the spliced ​​outer mold includes four outer plates spliced ​​into a square, and two adjacent outer plates are fixed by tie rods; The splicing inner mold is composed of an angle mold and a flat plate, and the adjacent surfaces of the angle mold and the flat plate are demoulding inclined surfaces.

2. The pier top slab construction formwork support system according to claim 1 is characterized in that: Longitudinal ribs are evenly distributed on the outside of the spliced ​​outer mold, supporting corbels are arranged on the ribs, and pedals are arranged above the supporting corbels.

3. The pier top slab construction formwork support system according to claim 1 is characterized in that: A plurality of horizontally distributed levers are provided on the outside of the splicing outer mold, and wedge blocks are provided at the ends of the levers. Both ends of the pull rod pass through the wedge blocks at the ends of two adjacent levers and are connected with locking nuts. A side of the wedge block corresponding to the locking nut is provided with a flat surface perpendicular to the axis of the locking nut.

4. The pier top slab construction formwork support system according to claim 1, characterized in that: The pair of tie bars include long tie bars and short tie bars, the long tie bars pass through two opposite outer plates, and the long tie bars are provided with stop nuts corresponding to the outer side of the outer plate and the inner side of the inner plate; Two ends of the short tie rod pass through the outer plate and the inner plate on one side of the pier top enclosure plate, and stop nuts corresponding to the outer side of the outer plate and the inner side of the inner plate are provided on the short tie rod.

5. The pier top slab construction formwork support system according to claim 1, characterized in that: A drain hole mold is provided between the spliced ​​outer mold and the spliced ​​inner mold. The outer wall of the drain hole mold is a conical structure. The smaller end of the drain hole mold passes through the spliced ​​inner mold from inside to outside and then abuts against the inner wall of the spliced ​​outer mold.

6. The pier top slab construction formwork support system according to claim 1, characterized in that: The uppermost section of the pier body template is a conical transition section that is larger at the top and smaller at the bottom. The upper edge of the transition section is provided with a folded portion that flips outward to form a top cap that extends out of the bottom surface of the circumferential portion of the pier body.

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