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A platform for research: civil engineering, architecture and urbanism
Full-paving periodic cushion layer vibration reduction ballast bed
The invention discloses a full-paving periodic cushion layer vibration reduction ballast bed which comprises a periodic composite ballast bed plate and a concrete base arranged below the periodic composite ballast bed plate, the periodic composite ballast bed plate and the concrete base are limited through a limiting structure, and relative displacement is prevented. The periodic composite ballast bed plate is formed by alternately arranging and solidifying concrete slabs and periodic cushion layers from top to bottom, and projections of the concrete slabs and the periodic cushion layers in the vertical direction are completely coincided to form a one-dimensional scattering type or local resonance type periodic structure in a cushion layer full-laying form; each concrete slab and the adjacent periodic cushion layer below the concrete slab form a basic unit, and the number of periodic repetitions of the basic units in the vertical direction is not smaller than 2. The vibration reduction ballast bed forms an elastic wave forbidden band in the vertical direction, vibration propagation in the vertical direction can be effectively controlled, the forbidden band range can be actively adjusted by changing the structural size and material composition, and adjustability is high.
本发明公开了一种满铺周期垫层减振道床，包括周期复合道床板及设置在其下方的混凝土基底，所述周期复合道床板与所述混凝土基底之间通过限位结构限位，防止发生相对位移，其中，所述周期复合道床板由混凝土板与周期垫层从上至下交替排列固结而成，且混凝土板与周期垫层在竖直方向的投影完全重合，形成垫层满铺形式的一维散射型或局域共振型周期结构；每一混凝土板和其下方相邻的周期垫层构成一个基本单元，所述基本单元沿竖直方向的周期重复数不少于2。本发明的减振道床在竖直方向上形成弹性波禁带，能有效控制竖直方向振动传播，通过改变结构尺寸与材料组成能够主动调节禁带范围，可调节性强。
Full-paving periodic cushion layer vibration reduction ballast bed
The invention discloses a full-paving periodic cushion layer vibration reduction ballast bed which comprises a periodic composite ballast bed plate and a concrete base arranged below the periodic composite ballast bed plate, the periodic composite ballast bed plate and the concrete base are limited through a limiting structure, and relative displacement is prevented. The periodic composite ballast bed plate is formed by alternately arranging and solidifying concrete slabs and periodic cushion layers from top to bottom, and projections of the concrete slabs and the periodic cushion layers in the vertical direction are completely coincided to form a one-dimensional scattering type or local resonance type periodic structure in a cushion layer full-laying form; each concrete slab and the adjacent periodic cushion layer below the concrete slab form a basic unit, and the number of periodic repetitions of the basic units in the vertical direction is not smaller than 2. The vibration reduction ballast bed forms an elastic wave forbidden band in the vertical direction, vibration propagation in the vertical direction can be effectively controlled, the forbidden band range can be actively adjusted by changing the structural size and material composition, and adjustability is high.
本发明公开了一种满铺周期垫层减振道床，包括周期复合道床板及设置在其下方的混凝土基底，所述周期复合道床板与所述混凝土基底之间通过限位结构限位，防止发生相对位移，其中，所述周期复合道床板由混凝土板与周期垫层从上至下交替排列固结而成，且混凝土板与周期垫层在竖直方向的投影完全重合，形成垫层满铺形式的一维散射型或局域共振型周期结构；每一混凝土板和其下方相邻的周期垫层构成一个基本单元，所述基本单元沿竖直方向的周期重复数不少于2。本发明的减振道床在竖直方向上形成弹性波禁带，能有效控制竖直方向振动传播，通过改变结构尺寸与材料组成能够主动调节禁带范围，可调节性强。
Full-paving periodic cushion layer vibration reduction ballast bed
一种满铺周期垫层减振道床
JIANG BOLONG (author) / LIU JIZHAO (author) / HU WENLIN (author) / WANG SHAOLIN (author) / HE BIN (author) / QI CHUNYU (author) / YANG BAOFENG (author) / YANG QIZHEN (author) / LIU DAOTONG (author) / TAN DAZHENG (author)
2021-04-09
Patent
Electronic Resource
Chinese
IPC:
E01B
PERMANENT WAY
,
Gleisoberbau
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