Reinforced concrete anti-collision guardrail steel formwork for viaduct

Abstract

The utility model discloses a viaduct reinforced concrete anti-collision guardrail steel formwork which comprises a stand column back frame, a first steel formwork and a second steel formwork, a suspension cross beam is fixedly connected to the stand column back frame, a back rib is fixedly connected to the second steel formwork, a connecting part is arranged on the upper end face of the back rib, and the first steel formwork and the second steel formwork are fixedly connected to the stand column back frame. A connecting piece matched with the connecting part is installed on the suspension cross beam, an adjusting assembly is installed on the connecting piece, the connecting piece comprises an adjusting screw rod, the adjusting screw rod penetrates through the suspension cross beam, a gasket is installed on the adjusting screw rod, the lower end face of the gasket makes contact with the suspension cross beam, a threaded part is arranged on the adjusting screw rod, and the threaded part is connected with the adjusting assembly. The adjusting screw rod is sleeved with an adjusting nut matched with the threaded part. Compared with the prior art, the utility model has the beneficial effects that the positioning component capable of adjusting the height and the inclination angle is used when the outer template is mounted, so that the outer template can be quickly and accurately positioned relative to the inner template, and the mounting time of the outer template and the high-altitude edge operation time are reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of steel formwork, and particularly relates to a steel formwork for reinforced concrete crash barrier of viaduct. BACKGROUND

[0002] The crash barrier is an important accessory facility of the urban viaduct, and plays an important role in ensuring the safety of the viaduct, and the common crash barrier structure of the viaduct is a cast-in-situ reinforced concrete crash barrier, which is tightly fixed by the inner and outer formworks through the tension bolts and pours the concrete inward to solidify.

[0003] The outer steel formwork needs high-altitude operation, personnel ride a remote control moving trolley with a hanging basket to install and reinforce the outer formwork, the linear precision of the traditional bolt fixing outer formwork is low, the alignment time is long, the calibration efficiency is poor, and the personnel high-altitude operation time is long. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a steel formwork for reinforced concrete crash barrier of viaduct to solve the above problems.

[0005] In order to realize the above-mentioned purpose, the utility model provides a steel formwork for reinforced concrete crash barrier of viaduct, which comprises a column back frame, a first steel form and a second steel form, the column back frame is fixedly connected with a suspension cross beam, the second steel form is fixedly connected with a back rib, the back rib is provided with a connecting part on the upper end face, the suspension cross beam is installed with a connecting piece matched with the connecting part, and the connecting piece is installed with an adjusting assembly.

[0006] In one or more embodiments of the utility model, the connecting piece comprises an adjusting screw rod, and the adjusting screw rod penetrates the suspension cross beam.

[0007] In one or more embodiments of the utility model, the adjusting screw rod is installed with a gasket, and the lower end face of the gasket is in contact with the suspension cross beam.

[0008] In one or more embodiments of the utility model, the adjusting screw rod is provided with a threaded part, and the adjusting screw rod is sleeved with an adjusting nut matched with the threaded part.

[0009] In one or more embodiments of the utility model, the back rib upper end face is fixedly connected with a pair of connecting plates, and the back rib connecting pin is fixedly connected between the pair of connecting plates.

[0010] In one or more embodiments of the utility model, the adjusting screw rod lower end is provided with a hooking part matched with the back rib connecting pin.

[0011] In one or more embodiments of the utility model, the length between the opposite faces of the inner side of the connecting plate is about 1.5 times the diameter of the adjusting screw rod.

[0012] In one or more embodiments of the utility model, the tail section of the lower end hooking part of the adjusting screw is greater than 5 cm from the upper end face of the connecting plate.

[0013] In one or more embodiments of the utility model, the back rib is fixedly connected with a second connecting cross beam, the second connecting cross beam is fixedly connected with a second steel mold, and the lower end faces of the plurality of second connecting cross beams are in the same plane.

[0014] In one or more embodiments of the utility model, the upper end face of the second steel mold and the upper end face of the first steel mold are in the same plane.

[0015] Compared with the prior art, the utility model has the beneficial effects that the positioning assembly with adjustable height and inclination angle is used when installing the outer formwork, the quick and accurate positioning of the outer formwork relative to the inner formwork is realized, and the installation time of the outer formwork and the time of high-altitude edge operation are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a first structure diagram of a steel formwork of a reinforced concrete crash barrier of an elevated bridge in an embodiment of the utility model;

[0017] Figure 2 It is a second structure diagram of a steel formwork of a reinforced concrete crash barrier of an elevated bridge in an embodiment of the utility model;

[0018] Figure 3 It is a sectional view of a steel formwork of a reinforced concrete crash barrier of an elevated bridge in an embodiment of the utility model;

[0019] Figure 4 It is a third structure diagram of a steel formwork of a reinforced concrete crash barrier of an elevated bridge in an embodiment of the utility model;

[0020] Figure 5 It is Figure 4 It is an enlarged view of A in the middle;

[0021] Figure 6 It is a parts drawing of a steel formwork of a reinforced concrete crash barrier of an elevated bridge in an embodiment of the utility model.

[0022] MAIN REFERENCE NUMERALS EXPLANATION:

[0023] 1 - column back frame, 101 - suspension cross beam, 102 - first connecting cross beam, 103 - first steel mold, 2 - back rib, 201 - second connecting cross beam, 202 - second steel mold, 203 - connecting plate, 204 - back rib connecting pin, 3 - first pair of draw bolts, 301 - second pair of draw bolts, 4 - adjusting screw rod, 401 - gasket, 402 - adjusting nut, 403 - thread, 5 - top support rod, 6 - inclined pull rod, 7 - limit hook, 8 - asphalt pavement layer, 801 - reinforced concrete pavement layer, 802 - bridge wing plate. DETAILED DESCRIPTION

[0024] The specific embodiments of the utility model will be described in detail below with reference to the drawings, but it should be understood that the protection scope of the utility model is not limited by the specific embodiments.

[0025] Reference Figure 1 As shown in the figure, a high bridge reinforced concrete crash barrier steel formwork is used for concrete pouring of urban high bridge crash barrier, compared with the installation and positioning of traditional crash barrier steel formwork, the positioning assembly is added to the steel formwork suspension mechanism, the hook connecting part is connected with the upper back rib connecting pin 204 of the second steel mold 202, and the threaded part is connected with the top suspension cross beam 101, so that the installation and disassembly are flexible and convenient, and precise positioning installation can be quickly realized and the high-altitude edge operation time is shortened.

[0026] Reference Figures 1-2 As shown in the figure, the first steel mold 103 and the second steel mold 202 are a pair of matched steel formworks, and the crash barrier is manufactured by pouring concrete into them and solidifying. The suspension cross beam 101 and the back rib 2 are both installed by using double-spliced channel steel, which facilitates the installation of the first pair of draw bolts 3 and the second pair of draw bolts 301.

[0027] The suspension cross beam 101 and the first connecting cross beam 102 are fixedly connected to the column back frame 1, and the connection mode is welding. The upper end surface of the first steel mold 103 is welded and connected with the lower end surface of the first connecting cross beam 102, and the lower part of the first steel mold 103 is welded and connected with the column back frame 1, that is, the column back frame 1, the suspension cross beam 101, the first connecting cross beam 102 and the first steel mold 103 are fixedly connected as a whole. The back rib 2 is welded and connected with the second connecting cross beam 201, the upper end surface of the second steel mold 202 is welded and connected with the lower end surface of the second connecting cross beam 201, and the side of the second steel mold 202 close to the back rib 2 is welded and connected with the back rib 2, that is, the back rib 2, the second connecting cross beam 201 and the second steel mold 202 are fixedly connected as a whole.

[0028] Reference Figures 4-6As shown, the upper end surface of the back rib 2 is provided with a connecting part, which includes a connecting plate 203 and a back rib connecting pin 204. A pair of connecting plates 203 are fixedly connected at the upper end surface of the back rib 2, and the back rib connecting pin 204 is fixedly connected between the pair of connecting plates 203. The lower end hooking part of the adjusting screw 4 is matched with the back rib connecting pin 204. The length between the opposite inner sides of the connecting plate 203 is about 1.5 times the diameter of the adjusting screw 4, which ensures that the back rib 2 has enough space to slightly deflect, so that the left and right angles during the installation of the second steel mold 202 can be adjusted. The distance between the tail section of the lower end hooking part of the adjusting screw 4 and the upper end surface of the connecting plate 203 is greater than 5 cm, which can avoid the disconnection of the connecting part and the connecting piece due to shaking, and increase the safety of high-altitude operation.

[0029] The connecting plate 203 and the back rib connecting pin 204 are fixedly connected to the back rib 2 by welding. The length of the connecting plate 203 is less than the length of the back rib 2, which is convenient for observation and saves materials. The suspension beam 101 is provided with a connecting piece matched with the connecting part, and the connecting piece includes an adjusting screw 4. The diameter of the adjusting screw 4 is 18 mm, and the length is 40 cm. The adjusting screw 4 is used to replace the original vertical straight screw, which can save about 7.5 yuan per meter of cost of the anti-collision guardrail steel mold plate material compared with the traditional method.

[0030] Reference Figures 4-6 As shown, the connecting piece is provided with an adjusting assembly, which includes a gasket 401 and an adjusting nut 402. The adjusting screw 4 penetrates the suspension beam 101, the gasket 401 and the adjusting nut 402, and is installed on the suspension beam 101. The suspension beam 101 is provided with an opening, which facilitates the installation of the adjusting screw 4 and the use of the adjusting assembly. The adjusting screw 4 penetrates the opening on the suspension beam 101.

[0031] The adjusting screw 4 is provided with a threaded part, and the adjusting nut 402 matched with the threaded part is sleeved on the adjusting screw 4. The gasket 401 is placed on the upper end surface of the suspension beam 101, and the lower end surface of the gasket 401 is in contact with the upper end surface of the suspension beam 101. The position of the adjusting nut 402 is adjusted by rotating to change the height of the adjusting screw 4 relative to the suspension beam 101, so as to adjust the height of the connecting piece through the adjusting assembly.

[0032] The position relationship between the connecting piece and the adjusting assembly on the adjusting screw 4 is side by side, which is convenient for the installation and use of the whole adjusting screw 4, and is convenient for the hooking of the connecting piece at the lower end of the adjusting screw 4 with the connecting part at the upper end surface of the back rib 2 after the installation of the adjusting screw 4 is completed, so as to realize the purpose of lifting the back rib 2, the second connecting beam 201 and the second steel mold 202 through the adjusting screw 4 installed on the suspension beam 101. At this time, the second steel mold 202 and the first steel mold 103 can be preliminarily butted, and the steel mold plate can be transported to the working position and preliminarily positioned and installed by the forklift.

[0033] Reference Figures 1-3As shown, the top supporting rod 5 is used to support the column back frame 1, and the inclined pull rod 6 is used to pull and fix the column back frame 1. One end of the inclined pull rod 6 is connected with the hook ring installed on the column back frame 1, and the other end is connected with the limiting hook 7 installed on the bridge surface. The center axes of the top supporting rod 5 and the inclined pull rod 6 are in the same longitudinal plane, and the top supporting rod 5, the inclined pull rod 6 and the limiting hook 7 jointly fix the column back frame 1. At this time, the position of the column back frame 1 is fixed, and the position of the first steel mold 103 fixedly connected with the column back frame 1 is also fixed. Then, the back rib 2 and the second steel mold 202 connected below the suspension beam 101 need to be adjusted to realize the installation positioning relative to the first steel mold 103.

[0034] Reference Figures 1-3 As shown, the first pair of pull bolts 3 are installed on the upper ends of the column back frame 1 and the back rib 2, and the second pair of pull bolts 301 are installed on the lower ends of the column back frame 1 and the back rib 2. The first pair of pull bolts 3 and the second pair of pull bolts 301 jointly fix the second steel mold 202 relative to the first steel mold 103. The first pair of pull bolts 3 and the second pair of pull bolts 301 are installed in the middle of the double-spliced channel steel and are connected through the fixed plates on the outer sides.

[0035] When the column back frame 1 is fixed, and the back rib 2, the second connecting beam 201 and the second steel mold 202 are still connected below the suspension beam 101, the height of the adjusting screw 4 can be adjusted by adjusting the adjusting assembly, and the height of the second steel mold 202 connected below the adjusting screw 4 is adjusted synchronously, so that the height of the second steel mold 202 is adapted to the installation height of the first pair of pull bolts 3 and the second pair of pull bolts 301. At the same time, the connecting piece connected in the connecting part has a certain activity space, which can realize the left and right adjustment angle of the second steel mold 202, and is convenient for the positioning and installation of the second steel mold 202 relative to the connecting plate 203.

[0036] The second connecting beam 201 is fixedly connected with the back rib 2, and the second connecting beam 201 is fixedly connected with the second steel mold 202. The lower end faces of a plurality of second connecting beams 201 are in the same plane, and the upper end faces of the second steel mold 202 and the first steel mold 103 are in the same plane. When installing, a level is placed on the upper end faces of the second steel mold 202 and the first steel mold 103 to assist the installation accuracy. After adjusting the position of the second steel mold 202 relative to the first steel mold 103 by using the adjusting assembly and installing by using the first pair of pull bolts 3 and the second pair of pull bolts 301, the level placed on the upper end faces of the second steel mold 202 and the first steel mold 103 is observed, and the first pair of pull bolts 3 and the second pair of pull bolts 301 are adjusted, so that the second steel mold 202 is quickly positioned and conveniently installed.

[0037] In use, the adjusting screw 4 is installed on the suspension beam 101, the gasket 401 and the adjusting nut 402 are installed on the adjusting screw 4, then the back rib 2 and the second steel mold 202 are connected under the suspension beam 101 through the connecting plate 203 and the back rib connecting pin 204, the steel mold plate is transported to the designated installation position by using a forklift, the top supporting rod 5, the inclined rod 6 and the limiting hook 7 on one side of the column back frame 1 are installed to position the column back frame 1 and the first steel mold 103 fixedly connected with the column back frame 1, after positioning, the back rib 2 and the second steel mold 202 are hung under the suspension beam 101.

[0038] The basket trolley is lifted from under the bridge, and the worker rides the basket to position and install the second steel mold 202, the longitudinal movement of the second steel mold 202 is realized by adjusting the adjusting nut 402 on the adjusting screw 4, and the left and right angle adjustment of the second steel mold 202 is realized through the reserved space on the connecting plate 203 and the back rib connecting pin 204, so that the second steel mold 202 is quickly positioned.

[0039] After the positioning of the second steel mold 202 and the preliminary connection of the first and second pull bolts 3 and 301 are completed, the level placed on the upper end faces of the first and second steel molds 103 and 202 is used to adjust and control the adjusting screw 4 on the suspension beam 101, so that the elevation of the first and second steel molds 103 and 202 is accurately adjusted, the first and second steel molds 103 and 202 are closely connected through the pull bolts, and the phenomenon of mold running and slurry leakage does not occur, the concrete forming effect is good, the line is straight and beautiful, and the forming quality is good.

[0040] Compared with the prior art, the beneficial effects of the utility model are that the positioning assembly with adjustable height and inclination angle is used when installing the outer mold plate, the quick and accurate positioning of the outer mold plate relative to the inner mold plate is realized, and the installation time of the outer mold plate and the high-altitude edge operation time are reduced.

[0041] It is apparent to those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or essential characteristics of the utility model. Therefore, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0042] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.

Claims

1. A steel form for a reinforced concrete crash barrier for a viaduct, comprising a column back frame, a first steel form and a second steel form, characterized in that, The column back frame is fixedly connected with a suspension cross beam, the second steel mold is fixedly connected with a back rib, the upper end surface of the back rib is provided with a connecting part, the suspension cross beam is provided with a connecting piece matched with the connecting part, and the connecting piece is provided with an adjusting assembly; The connecting piece comprises an adjusting screw, and the adjusting screw penetrates through the suspension cross beam; The lower end of the adjusting screw is provided with a hooking part matched with the back rib connecting pin.

2. The overhead bridge reinforced concrete crash barrier steel formwork according to claim 1, characterized in that, A gasket is mounted on the adjusting screw, and the lower end surface of the gasket is in contact with the suspension cross beam.

3. The overhead bridge reinforced concrete crash barrier steel formwork according to claim 2, characterized in that, A threaded part is arranged on the adjusting screw, and an adjusting nut matched with the threaded part is sleeved on the adjusting screw.

4. The overhead bridge reinforced concrete crash barrier steel formwork according to claim 1, characterized in that, The upper end surface of the back rib is fixedly connected with a pair of connecting plates, and the pair of connecting plates are fixedly connected with a back rib connecting pin.

5. The overhead bridge reinforced concrete crash barrier steel formwork according to claim 4, characterized in that, The length between the opposite inner sides of the connecting plates is greater than 1.5 times the diameter of the adjusting screw.

6. The overhead bridge reinforced concrete crash barrier steel formwork according to claim 1, characterized in that, The distance from the tail section of the lower end hooking part of the adjusting screw to the upper end surface of the connecting plate is greater than 5 cm.

7. The overhead bridge reinforced concrete crash barrier steel formwork according to claim 1, characterized in that, The back rib is fixedly connected with a second connecting cross beam, the second connecting cross beam is fixedly connected with the second steel mold, and the lower end surfaces of a plurality of second connecting cross beams are in the same plane.

8. The overhead bridge reinforced concrete crash barrier steel formwork according to claim 1, characterized in that, The upper end surface of the second steel mold and the upper end surface of the first steel mold are in the same plane.

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