桥梁减隔震固定支座

Fixed support for shock absorption and isolation of bridge

Abstract

The utility model discloses a fixed support for shock absorption and isolation of a bridge, which aims at leading the bridge to have excellent shock absorption and isolation performance and self-resetting capability and is particularly applicable to a railway simply supported beam bridge. The fixed support comprises an upper support plate (10), a lower support plate (40), an upper swing component (20) and a lower swing component (30); wherein the upper swing component (20) and the lower swing component (30) are arranged between the upper support plate (10) and the lower support plate (40); the fixed support is characterized in that the contact surface of the lower support plate (40) and the lower swing component (30) is a V-shaped inclined plane; two inclined planes forming the V-shaped inclined plane are symmetrical corresponding to the longitudinal centerline of the fixed support along the transverse direction; the contact surface of the upper swing component (20) and the lower swing component (30) is a cylindrical surface; the upper swing component (20) is fixedly connected with the upper support plate (10); and longitudinal energy-dissipating components are arranged at intervals along the longitudinal direction and transverse energy-dissipating components are arranged at intervals along the transverse direction between the upper support plate (10) and the lower support plate (40).
本实用新型公开了一种桥梁减隔震固定支座,旨在使桥梁具有良好的减隔震性能和自复位能力,特别适用于铁路简支梁桥。它包括上支座板(10)和下支座板(40),以及设置在两者之间的上摆构件(20)、下摆构件(30),其特征是:所述下支座板(40)与下摆构件(30)的接触面为V型斜面,构成该V型斜面的两个斜面沿横桥向相对于固定支座的纵向中心线对称;上摆构件(20)与下摆构件(30)的接触面为圆柱面;上摆构件(20)与上支座板(10)固定连接;在上支座板(10)和下支座板(40)之间,沿顺桥向间隔设置有纵向耗能构件,沿横桥向间隔设置有横向耗能构件。

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