Integral ultra-high strength concrete-micro-porous ceramic composite sound barrier of high-speed railway box beam

Abstract

The invention discloses an integral ultra-high strength concrete-micro-porous ceramic composite sound barrier of a high-speed railway box beam. The integral ultra-high strength concrete-micro-porous ceramic composite sound barrier of the high-speed railway box beam comprises supporting rib columns continuously arranged at intervals along a railway line; between every two supporting rib columns, one side of the vehicle travelling surface of the railway is a sound adsorption plate, and one side of the back surface of the railway is a back plate; the lower end of each supporting rib column is provided with a rib column embedded part which is connected with a railway bridge embedded part, and the embedded parts are completely covered and solidified on the basis of cast-in-place concrete; the back plate and the supporting rib columns are connected and fixed by bolts, bolt holes are filled and covered with water-proof materials, and the sound adsorption plate and the back plate are fixed by connecting pins and by coating adhesives. According to the integral ultra-high strength concrete-micro-porous ceramic composite sound barrier, a microporous ceramic composite plate of a three-dimensional reticular hole structure is adopted to serve as the sound adsorption plate to meet the performance requirements of sound adsorption and noise reduction, the surface of the three-dimensional reticular hole structure is provided with W-shaped wedges, the rear cavity of the sound adsorption plate which is separated but communicated can be used for enhancing an sound adsorption and sound insulation effect, integral strength is increased by the horizontal rib of the back plate, the design of each water discharge structure can be used for meeting the intensity requirement of a sound barrier and draining in time, and therefore, the weather resistance of the sound barrier is better.

Description

technical field [0001] The invention belongs to the technical field of railway operation noise control, in particular to the railway noise control technology, in particular to an integrated composite sound barrier applied to high-speed railway bridges. Background technique [0002] The sound barrier is a facility inserted between the sound source and the receiver, so that the sound wave propagation has a significant additional attenuation, thereby reducing the impact of noise in a certain area where the receiver is located. [0003] The sound barrier research has not only made great progress in the selection of material properties, but also in-depth research on the sound barrier structure. The existing sound barrier structures mostly use a single metal material or inorganic non-metallic material structure, and the layout is not based on the high-speed railway. The design was carried out according to the specific characteristics, and the installation and fixed structure did n...

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Problems solved by technology

Although non-metallic materials have good corrosion resistance, they have high requirements for weather resistance in long-term exposed application environments, especially in long-term rain immersion, it is easier to weather and fall off, so it is very important to ensure the weather resistance of structural materials in harsh open-air environments Problems that must be considered for metal sound barriers

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