Aluminum alloy overbridge chord member side sealing structure

Abstract

According to the aluminum alloy overbridge chord member side sealing structure, groove-shaped chord members are fixed to the two sides of the top of a stand column through bolts correspondingly, and protruding edges are arranged on the upper portions and the lower portions of the groove-shaped inner sides of the chord members correspondingly and support the two ends of the inner sides of sealing plates; clamping grooves are formed in the connecting positions of the sealing plates and the chord members and connected with buckling strips, and the edges of the buckling strips tightly press the outer sides of the ends of the sealing plates. The section shape of the buckling strip and the sealing connection mode of the sealing plate and the contact edge of the chord member are improved, the sealing effect is improved, the situation of sealing failure is prevented, the probability that the anchor bolt is corroded is smaller, and the service life is longer.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum alloy overpasses, in particular to a chord side sealing structure of an aluminum alloy overpass. Background Art

[0002] Aluminum alloy pedestrian overpasses have become a common form of overpass in urban areas in recent years. Constructed primarily of aluminum profiles, these bridges are connected through fastenings and bolting. The chords of these aluminum alloy overpasses are clamped and fixed to the columns on either side, forming a robust vertical and horizontal structure. The chords on either side are secured with steel bolts that pass through them. To prevent rust and corrosion, these steel bolts are typically sealed with cover plates.

[0003] However, in existing aluminum alloy pedestrian bridge chord side sealing structures, the sealing plate is typically secured by buckle strips at the top and bottom ends, with foam strips or sealant placed between the buckle strips and the sealing plate to compress the sealing plate against the convex edge of the channel profile to achieve a seal. However, the sealant or foam strips can age and harden, leading to loosening of the sealing plate after long-term use. This not only impairs the sealing effect and causes rust and corrosion in the bolts in the chord, but also widens the gaps in the sealing plate, affecting the appearance of the bridge. Summary of the Invention

[0004] In response to the above problems, the utility model provides an aluminum alloy overpass chord side sealing structure, which improves the cross-sectional shape of the buckle strip and the sealing connection form between the sealing plate and the contact edge of the chord, thereby improving the sealing effect, preventing the occurrence of sealing failure, and reducing the chance of corrosion of the anchor bolts and extending their service life.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A side sealing structure of an aluminum alloy overpass chord, in which a grooved chord is fixed to both sides of the top of the column by bolts, and raised edges are respectively provided on the upper and lower sides of the inner side of the chord groove, which support the two ends of the inner side of the sealing plate; a slot is provided at the connection between the sealing plate and the chord, and a buckle strip is connected to the slot, and the edge of the buckle strip presses the outer side of the end of the sealing plate.

[0007] This patent changes the current situation of using foam strips or sealants to fix the sealing plate. Buckle strips are set to be fixed on the chord rod body at both ends of the sealing plate. Once the buckle strips are fixed with the card edge into the card groove, a clamping structure is formed to cooperate with the convex edge to clamp the sealing plate.

[0008] The ends of the sealing plate are fixed to the convex edge of the chord rod by screws. The screws directly anchor the ends of the sealing plate to the chord rod, which is convenient to install and durable and reliable.

[0009] The two ends of the sealing plate are provided with clamping edges, which clamp the inner edges of the protruding edges. The function of the clamping edges is to provide a certain fixing effect before the screws and buckle strips are installed, so that the sealing plate will not fall off directly from the chord rod.

[0010] A node plate is provided in the chord, and is provided between the chord, the nut and the bolt head. The node plate is equivalent to a pad to prevent the bolt head and the nut from crushing the chord during the anchoring process.

[0011] The cross section of the buckle strip is triangular, with one side covering the screw installation area. After the screws are installed, the buckle strip is buckled and installed. The buckle strip covers the screw installation position, effectively protecting the screws from erosion by the external environment, wind and rain, and preventing corrosion failure.

[0012] Utility model advantages

[0013] 1. The utility model uses buckle strips, screws and card edges to fix the sealing plate, which changes the current situation of traditional fixation with foam strips and sealants; the new fixing structure not only fixes firmly, but also does not worry about the influence of material aging on the sealing and fixing effect, and is convenient and quick to install.

[0014] 2. The materials used in this utility model will not have adverse effects on the environment, and the fixing and sealing materials can be recycled when the overpass is dismantled, which is in line with the concept of environmentally friendly and green construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the cross-sectional structural diagram of the overpass;

[0016] Figure 2 This is the cross-sectional structural diagram of the chord installation position;

[0017] Figure 3 for Figure 2 The enlarged structure diagram of position Ⅰ in the middle;

[0018] The serial numbers in the figure are marked as: 1-chord; 2-column; 3-node plate; 4-bolt; 5-buckle; 6-covering plate; 7-screw. DETAILED DESCRIPTION Example 1

[0019] A side sealing structure of an aluminum alloy overpass chord, in which a groove-shaped chord 1 is fixed to both sides of the top of a column 2 by bolts 4. Lugs are provided on the upper and lower sides of the inner side of the groove of the chord 1, and the lugs support the inner ends of a sealing plate 6. A slot is provided at the connection between the sealing plate 6 and the chord 1, and a buckle strip 5 is connected and installed at the slot. The edge of the buckle strip 5 presses the outer side of the end of the sealing plate 6.

[0020] The two ends of the sealing plate 6 are fixed with screws 7 on the convex edge of the chord rod 1 .

[0021] The two ends of the sealing plate 6 are provided with clamping edges, which fasten the inner edges of the protruding edge.

[0022] A node plate 3 is provided in the chord 1 , and the node plate 3 is provided between the chord 1 and the nut and bolt head.

[0023] The cross section of the buckle strip 5 is triangular, one side of which covers the installation area of the screw 7.

Claims

1. An aluminum alloy overpass chord side sealing structure, characterized in that: The grooved chord (1) is fixed to both sides of the top of the column (2) by bolts (4), and convex edges are respectively provided on the upper and lower inner sides of the groove of the chord (1), and the convex edges support the inner ends of the sealing plate (6); a card slot is provided at the connection between the sealing plate (6) and the chord (1), and a buckle strip (5) is connected and installed at the card slot, and the edge of the buckle strip (5) presses the outer side of the end of the sealing plate (6).

2. The aluminum alloy overpass chord side closure structure according to claim 1, characterized in that: The two ends of the sealing plate (6) are fixed to the convex edge of the chord rod (1) by screws (7).

3. The aluminum alloy overpass chord side closure structure according to claim 1, characterized in that: The sealing plate (6) is provided with clamping edges at both ends, and the clamping edges fasten the inner edges of the convex edge.

4. The aluminum alloy overpass chord side closure structure according to claim 1, characterized in that: A node plate (3) is provided in the chord (1), and the node plate (3) is provided between the chord (1) and the nut and bolt head.

5. The aluminum alloy overpass chord side closure structure according to claim 2, characterized in that: The cross section of the buckle strip (5) is triangular, one side of which covers the installation area of the screw (7).

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