Layered gradient honeycomb filling pier anti-collision device with negative poisson ratio
A negative Poisson's ratio, anti-collision device technology, applied in road safety devices, bridges, bridge parts, etc., can solve the problems of difficult control of energy absorption of anti-collision devices, vehicle damage, etc., to optimize the impact force transmission process and avoid yielding. and damage, the effect of enhancing stiffness and bearing capacity
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[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0032] The invention relates to a bridge pier anti-collision device, which mainly consists of an inner anti-collision layer of a steel plate, a honeycomb sandwich layer filled with layered gradient foam concrete, an outer collision panel, and an "I-shaped" connection between various parts of the anti-collision device. It is composed of parts and connecting bolts, and the sandwich layer is composed of concave hexagonal negative Poisson's ratio honeycomb skeleton and its internal foam concrete filling.
[0033] In the above scheme, the foam concrete layered density gradient honeycomb core anti-collision device can be designed, manufactured and installed according to the following steps:
[0034] Step 1: Select the gradient coefficient, inner and outer anti-collision panels and core layer thickness according to the size and working conditi...
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