Prefabricated bridge anti-collision guardrail

Abstract

The utility model provides a prefabricated bridge anti-collision guardrail which comprises a prefabricated fence, the prefabricated fence is installed on the edge of a T beam, the prefabricated bridge anti-collision guardrail comprises a guardrail body, a second embedded rib, a post-pouring groove, a connecting groove and a grouting hole, the guardrail body is installed on the edge of the T beam, the second embedded rib is embedded in the guardrail body, the post-pouring groove is formed in the bottom end of the guardrail body, and the connecting groove is formed in the bottom end of the guardrail body. The connecting grooves are formed in the two ends of the guardrail, and the grouting holes are formed in the side wall of the bottom end of the guardrail. The pavement is paved on the surface of the T-shaped beam, and a gap is formed between the edge of the pavement side edge and the edge of the T-shaped beam side edge; the prefabricated bridge anti-collision guardrail has the advantages that the construction time can be saved, the durability of the guardrail is guaranteed, and the safety of a bridge is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge construction technical field especially relates to a prefabricated bridge crash barrier. BACKGROUND

[0002] At present, the green bridge construction concept of rapidness and assembly type has developed greatly, and the assembly type bridge structure develops rapidly, the crash barrier is an important component of the bridge, and the domestic and foreign bridge crash barriers basically adopt the construction technology of on-site steel bar binding and cast-in-place concrete construction.

[0003] Through the search, patent application No. 201821423150.3 discloses a prefabricated bridge crash barrier, first embeds the steel bar or the steel bar in the position of the beam body installation crash barrier, installs the epoxy mortar pad layer of epoxy resin mortar of the surface, the steel bar top installs the anchoring agent package, the loader hoisting, manual auxiliary accurate just in place, and the surrounding residual epoxy mortar is removed, for the convenience of installation and just in place, the reserved socket steel bar hole can be 4-5mm larger than the embedded steel bar, and the embedded steel bar top elevation can be reduced by 5mm, facilitating the hole just in place.

[0004] The current bridge crash barrier construction is mostly cast-in-place, however, the cast-in-place construction period is long, time-consuming and laborious, and the construction quality is difficult to control, which easily leads to concrete cracking, increases the risk of internal steel bar corrosion, seriously affects the durability of the crash barrier, and finally affects the safety of the bridge.

[0005] Therefore, it is necessary to provide a new prefabricated bridge crash barrier to solve the above technical problems. UTILITY MODEL CONTENTS

[0006] The utility model solves the technical problem to provide a prefabricated bridge crash barrier which can save construction time, guarantee the durability of the crash barrier and strengthen the safety of the bridge.

[0007] To solve the above technical problems, the prefabricated bridge crash barrier provided by the utility model comprises: a prefabricated barrier installed on the edge of a T beam, which comprises a crash barrier, a second embedded steel bar, a post-cast groove, a connecting groove and a grouting hole, the crash barrier is installed on the edge of the T beam, the second embedded steel bar is embedded in the interior of the crash barrier, the post-cast groove is arranged at the bottom end of the crash barrier, the connecting groove is arranged at both ends of the crash barrier, and the grouting hole is arranged in the side wall of the bottom end of the crash barrier, and paving is arranged on the surface of the T beam, and a gap is formed between the edge of the side of the paving and the edge of the side of the T beam.

[0008] Preferably, a first embedded steel bar is embedded in the interior of the T beam, and one end of the first embedded steel bar extends vertically out of the surface of the edge of both ends of the T beam.

[0009] Preferably, the first embedded steel bars are provided with two groups, the interval of the outer group of the first embedded steel bars is cm, and the interval of the inner group of the first embedded steel bars is cm.

[0010] Preferably, the top end of the guardrail is gradually widened downward, the inner side wall of the post-cast groove is provided with a ridge position, and the guardrail is clamped on the edge of the T-beam in a vertical state through the ridge position of the inner side wall of the post-cast groove.

[0011] Preferably, one end of the second embedded steel bar extends transversely out of the interior of the joint groove, and one end of the second embedded steel bar also extends out of the interior of the post-cast groove, and the top end of the first embedded steel bar is supported on the top surface in the interior of the post-cast groove.

[0012] Preferably, one end side wall of the pavement is flush with the side wall of one end of the guardrail, the depth of the post-cast groove is greater than the thickness of the pavement, and the space between the post-cast groove and the pavement forms a post-cast band, and the grouting hole communicates with the post-cast band.

[0013] Preferably, the edge surface of one end of the T-beam is also provided with a third embedded steel bar, and the third embedded steel bar is arched and protrudes from the edge surface of one end of the T-beam.

[0014] Compared with the related art, the prefabricated bridge anti-collision guardrail has the following beneficial effects:

[0015] The prefabricated bridge anti-collision guardrail comprises a T-beam, a guardrail, a pavement, a post-cast groove, a first embedded steel bar, a second embedded steel bar, a third embedded steel bar, and a grouting hole. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1A preferred embodiment structure diagram of the prefabricated bridge anti-collision guardrail is shown in the figure;

[0017] Figure 2 For Figure 1 The structure diagram of the T beam three-dimensional display is shown in the figure;

[0018] Figure 3 For Figure 1 The structure diagram of the prefabricated guardrail three-dimensional display is shown in the figure;

[0019] Figure 4 For Figure 3 The structure diagram of the prefabricated guardrail overall side view is shown in the figure.

[0020] Marked in the figure: T beam, 2, first embedded bar, 3, paving, 4, prefabricated guardrail, 41, guardrail, 42, second embedded bar, 43, post-pouring groove, 44, joint groove, 45, grouting hole, 5, post-pouring belt. DETAILED DESCRIPTION

[0021] The utility model will be further described below in combination with the drawings and embodiments.

[0022] Please refer to Figures 1-4 , Figure 1 A preferred embodiment structure diagram of the prefabricated bridge anti-collision guardrail is shown in the figure; Figure 2 For Figure 1 The structure diagram of the T beam three-dimensional display is shown in the figure; Figure 3 For Figure 1 The structure diagram of the prefabricated guardrail three-dimensional display is shown in the figure; Figure 4 For Figure 3 The structure diagram of the prefabricated guardrail overall side view is shown in the figure, wherein the prefabricated bridge anti-collision guardrail comprises: prefabricated guardrail 4, the prefabricated guardrail 4 is installed on the edge of T beam 1, which comprises guardrail 41, second embedded bar 42, post-pouring groove 43, joint groove 44 and grouting hole 45, the guardrail 41 is installed on the edge of T beam 1, the second embedded bar 42 is embedded in the inside of the guardrail 41, the post-pouring groove 43 is arranged at the bottom end of the guardrail 41, the joint groove 44 is arranged at both ends of the guardrail 41, and the grouting hole 45 is arranged in the side wall of the bottom end of the guardrail 41;Paving 3, the paving 3 is laid on the surface of the T beam 1, and a spacing is formed between the edge of the side of the paving 3 and the edge of the side of the T beam 1.

[0023] In the specific implementation process, such as Figure 1 And Figure 2As shown, the inside of the T beam 1 is pre-buried with a first pre-buried rib 2, and one end of the first pre-buried rib 2 extends vertically out of the surface of the two end edges of the T beam 1; the first pre-buried rib 2 is provided with two groups, the interval of the first pre-buried rib 2 of the outer group is 40cm, and the interval of the first pre-buried rib 2 of the inner group is 80cm; and the inner side wall of the post-cast groove 43 is provided with a ridge position, and the guardrail 41 is clamped on the edge of the T beam 1 in a vertical state through the ridge position of the inner side wall of the post-cast groove 43; one end of the second pre-buried rib 42 extends transversely into the inside of the connecting groove 44, and one end of the second pre-buried rib 42 also extends into the inside of the post-cast groove 43, and the top end of the first pre-buried rib 2 is supported on the top surface in the inside of the post-cast groove 43; the first pre-buried rib 2 can support the guardrail 41, so that the guardrail 41 can be in a vertical state with the T beam 1, and the position of the guardrail 41 can be preliminarily limited.

[0024] In the specific implementation process, as shown in Figure 1 and Figure 2 , one end of the side wall of the pavement 3 is flush with the side wall of one end of the guardrail 41, and the depth of the post-cast groove 43 is greater than the thickness of the pavement 3, and the space between the post-cast groove 43 and the pavement 3 forms a post-cast band 5, and the grouting hole 45 communicates with the post-cast band 5; the inside of the post-cast band 5 can be grouted through the grouting hole 45, so that the guardrail 41, the pavement 3 and the T beam 1 can be fixedly connected together through the post-cast band 5.

[0025] In the specific implementation process, as shown in Figure 1 and Figure 2 Figure 1 Figure 2 , the edge surface of one end of the T beam 1 is also provided with a third pre-buried rib 6, and the third pre-buried rib 6 is arched out of the edge surface of one end of the T beam 1, and the shape of the second pre-buried rib 42 is also arched, and the third pre-buried rib 6 and the second pre-buried rib 42 are staggered; the third pre-buried rib 6 and the second pre-buried rib 42 are staggered and bound and welded, so that the connection between the guardrail 41 and the T beam 1 is more stable.

[0026] The working principle of the prefabricated bridge crash barrier provided by the utility model is as follows:

[0027] In use, first, the prefabricated said prefabricated fence 4 is hoisted to said T beam 1 through the crane, said prefabricated fence 4 is hoisted to the designated position of the T beam 1 wing plate edge slowly falls down, the bottom end of said guardrail 41 is provided with the inside wall of said post-cast groove 43 The ridge of the card is clamped on the edge of the T beam 1, so that the guardrail 41 is initially overlapped with the T beam 1, and the verticality is calibrated with a laser level or a square ruler. If the reinforcement position is staggered, it cannot be placed down, and a crowbar or hammer can be used for slight adjustment. Then the first embedded steel bars 2 embedded in the edge of the T beam 1 and the second embedded steel bars 42 exposed at the bottom end of the guardrail 41 are welded and fixed above the uniform distribution 4, the crane slowly unloads the force, and the positioning of the guardrail 41 is firm. After the hoisting rope is released, the third embedded steel bars 6 and the second embedded steel bars 42 are then bound, so that the guardrail 41 is further connected with the T beam 1 through the third embedded steel bars 6, and then the paving 3 is paved, so that the side of the paving 3 is flush with the side wall of the guardrail 41, and the space between the guardrail 41 and the paving 3 forms the post-cast strip 5. Then the gap between the paving 3 and the guardrail 41 is closed through the template, and then the interior of the post-cast strip 5 is injected with concrete through the grouting hole 45. After complete solidification, the guardrail 41 and the T beam 1 are completely fixed together, and the reinforcement can be completely enclosed in the concrete layer, effectively avoiding the leakage of the reinforcement. This structure has the advantages of saving construction time, ensuring the durability of the guardrail 41, and strengthening the safety of the bridge.

[0028] Compared with the related art, the prefabricated bridge crash barrier has the following advantages:

[0029] The utility model provides a prefabricated bridge crash barrier, first enough through the hanger to hoist the prefabricated the prefabricated fence 4 to T beam 1 side edge flange plate, through the position of hoisting is adjusted, make the prefabricated fence 4 can be first through the card in the side of T beam 1, and under the support of first embedded bar 2, make the prefabricated fence 4 perpendicular to the rim of T beam 1, then through the second embedded bar 42 with first embedded bar 2 welding, make the prefabricated fence 4 preliminary fixation, then again the third embedded bar 6 and second embedded bar 42 are bound, further to the prefabricated fence 4 are fixed, then again the surface of T beam 1 is paved the paving 3, make the side of paving 3 with the side wall of prefabricated fence 4 level, its prefabricated fence 4 and the space between paving 3 will form post-cast strip 5, through the template the opening of post-cast strip 5 is closed, will make the inside of post-cast strip 5 be in closed state, then through the grouting hole 45 of prefabricated fence 4 side wall injects concrete to post-cast strip 5, when grouting hole 45 overflow concrete, the inside of post-cast strip 5 will be full of concrete, when concrete completely solidifies, can tightly fix prefabricated fence 4 on the rim of T beam 1, this structure has the advantages of being capable of saving construction time, guaranteeing the durability of guardrail 41, strengthening bridge safety.

[0030] The above is only the embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion using the utility model specification and drawing contents, or direct or indirect application in other related technical fields, are all included in the patent protection range of the utility model.

Claims

1. A precast bridge crash barrier, characterized in that, Comprising; The prefabricated fence (4) is installed on the edge of the T-beam (1), which includes a guardrail (41), a second embedded bar (42), a post-cast groove (43), a connecting groove (44) and a grouting hole (45). The guardrail (41) is installed on the edge of the T-beam (1), the second embedded bar (42) is embedded in the inside of the guardrail (41), the post-cast groove (43) is arranged at the bottom end of the guardrail (41), the connecting groove (44) is arranged at both ends of the guardrail (41), and the grouting hole (45) is arranged on the side wall of the bottom end of the guardrail (41). The pavement (3) is laid on the surface of the T-beam (1), and a gap is provided between the edge of the side edge of the pavement (3) and the edge of the side edge of the T-beam (1).

2. The precast bridge crash barrier of claim 1, wherein, The inside of the T-beam (1) is embedded with a first embedded bar (2), and one end of the first embedded bar (2) extends vertically out of the surface of the edge of the T-beam (1).

3. The precast bridge crash barrier of claim 2, wherein, The first embedded bar (2) is provided with two groups, the distance between the first embedded bars (2) of the outer group is 40 cm, and the distance between the first embedded bars (2) of the inner group is 80 cm.

4. The precast bridge crash barrier of claim 1, wherein, The top end of the guardrail (41) gradually widens downward, and the inner side wall of the post-cast groove (43) is provided with a ridge, and the guardrail (41) is clamped on the edge of the T-beam (1) in a vertical state through the ridge of the inner side wall of the post-cast groove (43).

5. The precast bridge crash barrier of claim 2, wherein, One end of the second embedded bar (42) extends transversely into the inside of the connecting groove (44), and one end of the second embedded bar (42) also extends into the inside of the post-cast groove (43), and the top end of the first embedded bar (2) is supported on the top surface in the inside of the post-cast groove (43).

6. The precast bridge crash barrier of claim 1, wherein, One end of the pavement (3) is flush with the side wall of one end of the guardrail (41), the depth of the post-cast groove (43) is greater than the thickness of the pavement (3), the space between the post-cast groove (43) and the pavement (3) forms a post-cast strip (5), and the grouting hole (45) communicates with the post-cast strip (5).

7. The precast bridge crash barrier of claim 1, wherein, The edge surface of one end of the T-beam (1) is also provided with a third embedded bar (6), and the third embedded bar (6) is arched out of the edge surface of one end of the T-beam (1).

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