一种伸缩缝专用型钢和伸缩缝装置

Abstract

本实用新型公开了一种伸缩缝专用型钢和伸缩缝装置，本实用新型伸缩缝专用型钢包括型钢主体，所述型钢主体的横截面为Π型结构，包括顶板部和支腿部，两个所述支腿部竖直对称设置在所述顶板部的底面两端；所述支腿部底部外壁上水平设置有向外凸出的锚固部，所述支腿部底部内壁上水平连接有内支撑板条。本实用新型伸缩缝专用型钢和伸缩缝装置，利用型钢剖切制作伸缩缝预埋构件，没有螺栓连接更加牢固可靠增加了使用寿命，同时降低了加工成本。

Claims

1. A special steel for expansion joint, characterized by, The structure includes a steel body (1), the cross-section of which is a Π-shaped structure, including a top plate (101) and a support leg (102). The two support legs (102) are vertically and symmetrically arranged at both ends of the bottom surface of the top plate (101). An outwardly protruding anchoring part (104) is horizontally arranged on the outer wall of the bottom of the support leg (102), and an inner support strip (103) is horizontally connected on the inner wall of the bottom of the support leg (102).

2. The expansion joint specific shape steel according to claim 1, characterized in that, The thickness of the top plate portion (101) in the middle of the two support legs (102) is greater than that of the portions at both ends.

3. The expansion joint specific shape steel according to claim 1, characterized in that, The number of inner support strips (103) is either one alone or two symmetrically arranged; the height of the inner support strips (103) is greater than that of the anchoring part (104).

4. The expansion joint specific shape steel according to claim 3, characterized in that, The top surfaces of the two inner support strips (103) and the bottom surface of the top plate portion (101) form a receiving cavity (2).

5. The expansion joint specific shape steel according to claim 1, characterized in that, The top plate (101) has anti-slip texture on the top surface corresponding to the support leg (102).

6. An expansion joint apparatus, characterized by, Using the special steel for expansion joints as described in claim 1, two expansion joint pre-embedded components are cut along the cutting line (3) on the top surface of the top plate (101), and the two expansion joint pre-embedded components are set face to face on the beam end of the bridge expansion joint.

7. The expansion joint apparatus of claim 6, wherein, It also includes a dustproof plate (4), a noise reduction plate (5), a waterproof plate (6), and an angle steel strip (7). The dustproof plate (4) and the noise reduction plate (5) are stacked in the receiving cavity (2). The dustproof plate (4) is laid in contact with the bottom surface of the toothed plate part (105) of the expansion joint pre-embedded component. The waterproof plate (6) is closed and connected to the bottom end of the cantilever of the two opposing inner support strips (103) by the angle steel strip (7).

8. The expansion joint apparatus of claim 7, wherein, The noise reduction board (5) is specifically made of polyethylene closed-cell foam board, and the dustproof board (4) is specifically made of stainless steel plate.

9. The expansion joint apparatus of claim 6, wherein, For expansion joint special steel with the inner support strip (103) set separately, it also includes a dustproof plate (4), a waterproof plate (6), an angle steel strip (7), a rubber pad (8), and a support rib (9). The dustproof plate (4) is laid in contact with the bottom surface of the toothed plate part (105) of the expansion joint pre-embedded component. The rubber pad (8) is placed under the dustproof plate (4). The support rib (9) is supported on the top surface of the inner support strip (103) and the bottom surface of the rubber pad (8). Multiple support ribs (9) are arranged at equal intervals along the length of the expansion joint. The waterproof plate (6) is connected to the side wall of the expansion joint through the angle steel strip (7).

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