Active cross brace structure of cable-stayed bridge

Abstract

The utility model relates to the technical field of cable-stayed bridge cable bent towers, and particularly discloses a cable-stayed bridge active cross brace structure which comprises a cable bent tower, a cross beam arranged in the middle of the cable bent tower, a platform plate arranged on the top of the cross beam, guardrails arranged on the two sides of the top of the platform plate, a matching groove formed in one side of each guardrail, and an embedding groove formed in the top of one side of each guardrail. Deflection blocks are arranged on the two sides of the platform plate, and safety frames are connected into the deflection blocks. The safety frame arranged in the device can be deflected and expanded out from the two sides of the platform plate to form a protection structure with an inclined plane, so that during construction, gravel and tools cannot fall off from the high altitude during construction. The problems that when an active cross brace of a cable bent tower serves as a temporary channel to conduct construction on a cable bent tower stand column, gravel and construction tools in construction are prone to falling off, and if the active cross brace directly falls off from the cross brace, hidden dangers are prone to being generated are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable -stayed bridge cable -towertechnical field, specifically, a cable -stayed bridge initiative cross bracing structure. BACKGROUND

[0002] The cable tower is the most important main stressed member in the cable -stayed bridge, and plays a key role in the overall structural stability of the cable -stayed bridge.

[0003] The existing cable tower construction adopts the initiative cross bracing as a kind of temporary supporting structure in the cable tower construction process to better ensure the structural stability in the construction process of cable tower and speed up the construction progress, simultaneously also as a temporary construction passage to let construction personnel can move between two cable tower columns, but the existing cross bracing when operating as a temporary construction platform, sand and construction tools can easily fall during construction, and because it is high-altitude operation, if sand and tools fall, it is easy to fall from high altitude, so that it can easily produce safety hazard. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of cable -stayed bridge initiative cross bracing structure, solve the initiative cross bracing of cable tower when being used as temporary passage to the construction of cable tower column, sand and construction tools of construction are easily dropped, and if directly falling from cross bracing, it is easy to produce hidden danger.

[0005] The utility model achieves the following technical solutions:

[0006] The utility model provides a kind of cable -stayed bridge initiative cross bracing structure, including cable tower, the middle part of cable tower is provided with crossbeam, the top of crossbeam is provided with platform plate, the top of platform plate is provided with guardrail on both sides, the side of guardrail is provided with cooperation slot, the top of the side of guardrail is provided with inlay slot, the both sides of platform plate are provided with deflection block, and safety frame is connected in deflection block.

[0007] Preferably, the cooperation slot is a groove on both sides of the guardrail frame, and the inlay slot is a groove on the top of the guardrail frame.

[0008] Preferably, the two ends of the inlay slot are in communication with the cooperation slot.

[0009] Preferably, the inlay slot further includes a contraction slot and a limiting block, the contraction slot is arranged on both sides of the middle part of the inlay slot, and the limiting block is connected in the contraction slot.

[0010] Preferably, the bottom of the limiting block is arc-shaped, and one end of the limiting block is connected with one end of the contraction slot through a spring.

[0011] Preferably, the safety frame includes a deflection shaft, the deflection shaft is arranged on both sides of the bottom of the safety frame, and the safety frame is hinged between the deflection blocks through the deflection shaft.

[0012] Preferably, a protrusion is provided on the side of the deflection block facing the safety frame, and the protrusion on one side of the deflection block is located near the bottom of the deflection block.

[0013] Preferably, a protective net is provided in the middle of the safety frame.

[0014] The technical solution of this utility model has at least the following advantages and beneficial effects:

[0015] 1. The safety frame installed in this device can deflect and extend outward from both sides of the platform plate to form a protective structure with an inclined surface, thereby preventing sand, gravel and tools from falling from a height during construction.

[0016] 2. The device is also equipped with a deflection block, which can accommodate the extended safety frame while maintaining the overall connection with the platform and guardrail, facilitating the removal and handling of the platform and guardrail. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a side view sectional structural diagram of the platform board and guardrail of this utility model.

[0019] Figure 3 This utility model Figure 2 A magnified structural diagram of point A in the middle.

[0020] Figure 4 This utility model Figure 2 A magnified structural diagram at point B in the middle.

[0021] Reference numerals: 1-Tower, 2-Beam, 201-Guardrail, 2011-Matching groove, 2012-Matching groove, 2013-Contraction groove, 2014-Limiting block, 202-Platform plate, 2021-Deflection block, 203-Safety frame, 2031-Deflection shaft. Detailed Implementation

[0022] The following is combined Figures 1 to 4 This utility model will be described in detail.

[0023] An active cross bracing structure for a cable-stayed bridge includes a pylon 1, a crossbeam 2 located in the middle of the pylon 1, a platform plate 202 located on the top of the crossbeam 2, guardrails 201 located on both sides of the top of the platform plate 202, a mating groove 2011 located on one side of the guardrail 201, an interlocking groove 2012 located on the top of one side of the guardrail 201, deflection blocks 2021 located on both sides of the platform plate 202, and a safety frame 203 connected to the deflection block 2021.

[0024] First, in the process of building the cable tower 1, a beam 2 will be hoisted between the two pillars of the cable tower 1, and then a platform plate 202 will be connected to the beam 2, so that the construction personnel can move on the platform plate 202, so that the construction personnel can walk between the two columns, greatly facilitating the construction of the two columns and the use of the construction device, and at the same time, guardrails 201 are arranged on both sides of the platform plate 202 for safety protection, and according to the local concrete pressure of different cross-section segments, different prestresses are applied to each segment of the cross brace in the form of two ends abutting to support the arc of the cable tower 1 column, effectively reducing the impact of excessive local concrete pressure on the overall structural stability.

[0025] Further, the matching groove 2011 is a groove on both sides of the frame of the guardrail 201, the fitting groove 2012 is a groove on the top frame of the guardrail 201, the two ends of the fitting groove 2012 are communicated with the matching groove 2011, the fitting groove 2012 further includes a contraction groove 2013 and a limiting block 2014, the contraction groove 2013 is arranged on both sides of the fitting groove 2012, and the limiting block 2014 is connected in the contraction groove 2013, the bottom of the limiting block 2014 is arc-shaped, and one end of the limiting block 2014 is connected with one end of the contraction groove 2013 through a spring, the safety frame 203 includes a deflection shaft 2031, the deflection shaft 2031 is arranged on both sides of the bottom of the safety frame 203, and the safety frame 203 is hinged between the deflection blocks 2021 through the deflection shaft 2031, the side of the deflection block 2021 facing the safety frame 203 is provided with a protrusion, and the protrusion on one side of the deflection block 2021 is located near the bottom end of the deflection block 2021, and the middle of the safety frame 203 is provided with a protective net.

[0026] At the same time, after the platform plate 202 and the guardrail 201 are built, the safety frame 203 will be deflected along the deflection block 2021 through one end of the deflection shaft 2031, so that the safety frame 203 will be unfolded at a certain angle on both sides of the platform plate 202, and then the protective net connected in the safety frame 203 will catch the falling sand and tools in the construction process, to avoid high-altitude falling, and because of the protrusion on one side of the deflection block 2021, the deflection angle of the safety frame 203 will be limited, so that the safety frame 203 will maintain a certain inclination angle, so that the falling objects will slide to the center, and will not slide outward.

[0027] Meanwhile, when the platform plate 202 and the guardrail 201 are removed, the safety frame 203 can be moved by applying force, so that the top of the safety frame 203 is embedded into the embedding groove 2012, and when pushed in, the safety frame 203 abuts against the limiting blocks 2014 protruding on both sides of the embedding groove 2012, because the arc surface of the limiting blocks 2014 allows the limiting blocks 2014 to shrink into the shrinkage grooves 2013 when pressed, so that the safety frame 203 can be embedded into the embedding groove 2012, and then the limiting blocks 2014 are popped out by the reset of the spring, so as to limit the embedded part of the safety frame 203, so that the safety frame 203 can be stored together with the platform plate 202 and the guardrail 201, facilitating removal and transportation.

[0028] The following is the specific process of the utility model, first, in the process of building the cable tower 1, a cross beam 2 is hoisted and built between the two pillars of the cable tower 1, and then the platform plate 202 is connected to the cross beam 2, so that the construction personnel can move on the platform plate 202, so that the construction personnel can walk between the two pillars, greatly facilitating the construction of the two pillars and the transportation and use of the construction device, and the guardrail 201 is arranged on both sides of the platform plate 202 for safety protection, and after the platform plate 202 and the guardrail 201 are built, the safety frame 203 is deflected along the deflection block 2021 through one end of the deflection shaft 2031, so that the safety frame 203 is unfolded at a certain angle on both sides of the platform plate 202, and then the safety frame 203 is connected to the protective net to catch the falling sand and tools in the construction process, to avoid high-altitude falling, and because the protrusion on one side of the deflection block 2021 limits the deflection angle of the safety frame 203, the safety frame 203 maintains a certain inclination angle, so that the falling objects slide to the center and do not slide outward, and when the platform plate 202 and the guardrail 201 are removed, the safety frame 203 can be moved by applying force, so that the top of the safety frame 203 is embedded into the embedding groove 2012, and when pushed in, the safety frame 203 abuts against the limiting blocks 2014 protruding on both sides of the embedding groove 2012, because the arc surface of the limiting blocks 2014 allows the limiting blocks 2014 to shrink into the shrinkage grooves 2013 when pressed, so that the safety frame 203 can be embedded into the embedding groove 2012, and then the limiting blocks 2014 are popped out by the reset of the spring, so as to limit the embedded part of the safety frame 203, so that the safety frame 203 can be stored together with the platform plate 202 and the guardrail 201, facilitating removal and transportation.

Claims

1. A cable-stayed bridge active cross-bracing structure, comprising a cable tower (1), a cross beam (2) arranged at the middle part of the cable tower (1), a platform plate (202) arranged at the top of the cross beam (2), and guardrails (201) arranged at the top of both sides of the platform plate (202), characterized in that, One side of the guardrail (201) is provided with a matching groove (2011), a top of one side of the guardrail (201) is provided with an embedded groove (2012), both sides of the platform plate (202) are provided with a deflection block (2021), and the deflection block (2021) is connected with a safety frame (203).

2. The structure of the active cross-brace of the cable-stayed bridge according to claim 1, characterized in that, The matching groove (2011) is a groove on both sides of the frame of the guardrail (201), and the embedded groove (2012) is a groove on the top frame of the guardrail (201).

3. The structure of claim 1, wherein the structure is characterized by, Both ends of the embedded groove (2012) are communicated with the matching groove (2011).

4. The structure of claim 1, wherein the structure is characterized by, The embedded groove (2012) further comprises a contraction groove (2013) and a limiting block (2014), the contraction groove (2013) is arranged on both sides of the middle of the embedded groove (2012), and the limiting block (2014) is connected in the contraction groove (2013).

5. The active cross-brace structure of a cable-stayed bridge according to claim 4, characterized in that, The bottom of the limiting block (2014) is arranged in a circular arc shape, and one end of the limiting block (2014) is connected with one end of the contraction groove (2013) through a spring.

6. The structure of the active cross-brace of the cable-stayed bridge according to claim 1, characterized in that, The safety frame (203) comprises a deflection shaft (2031), the deflection shaft (2031) is arranged on both sides of the bottom of the safety frame (203), and the safety frame (203) is hinged between the deflection blocks (2021) through the deflection shaft (2031).

7. The structure of the active cross-brace of the cable-stayed bridge according to claim 1, characterized in that, One side of the deflection block (2021) is provided with a protruding block, and the protruding block on one side of the deflection block (2021) is located near the bottom end of the deflection block (2021).

8. The structure of the active cross-brace of the cable-stayed bridge according to claim 1, characterized in that, The middle of the safety frame (203) is provided with a protective net.

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