Bolt-free comb tooth type vibration and noise reduction bridge expansion device and method: Fid-Bau Portal

Bolt-free comb tooth type vibration and noise reduction bridge expansion device and method

ZHOU RUI

The invention relates to the field of bridge expansion devices, in particular to a bolt-free comb tooth type vibration and noise reduction bridge expansion device and method. The bridge expansion device comprises a fixed toothed plate (1) and a sliding toothed plate (2) which are located on the two sides of an expansion joint, and the fixed toothed plate (1) and the sliding toothed plate (2) are arranged in a staggered mode. A fixed elastic cushion layer (6) is arranged below the fixed toothed plate (1), and a sliding elastic cushion layer (7) is arranged below the sliding toothed plate (2); each of the fixed elastic cushion layer (6) and the sliding elastic cushion layer (7) is formed by vulcanizing or bonding an upper-layer force-holding steel plate (12), a middle elastic body (11) and a lower-layer force-holding steel plate (10); the lower parts of the fixed toothed plate (1) and the sliding toothed plate (2) are respectively connected with vertical plates (3), and the vertical plates (3) are respectively connected with transverse plates (4); a vertical plate (3) below the fixed toothed plate (1) is connected with a supporting bracket (5); the supporting bracket (5) is of a trapezoidal plate-shaped structure; and anchoring plates (8) are connected below the fixed toothed plate (1) and the sliding toothed plate (2).

本发明涉及桥梁伸缩装置领域，尤其涉及一种无螺栓梳齿式减振降噪桥梁伸缩装置和方法。该桥梁伸缩装置包含位于伸缩缝两侧的固定齿板（1）和滑动齿板（2），固定齿板（1）和滑动齿板（2）彼此交错布置；固定齿板（1）下方有固定弹性垫层（6），滑动齿板（2）下方有滑动弹性垫层（7）；固定弹性垫层（6）与滑动弹性垫层（7）均由上层持力钢板（12）、中间弹性体（11）及下层持力钢板（10）通过硫化或粘接组成；固定齿板（1）及滑动齿板（2）的下部均分别连接立板（3），立板（3）分别连接着横板（4）；固定齿板（1）下方的立板（3）连接着支撑牛腿（5）；支撑牛腿（5）为梯形板状结构；固定齿板（1）与滑动齿板（2）下方均连接有锚固板（8）。

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