Abstract: A bridge of shock-absorbing construction is disclosed, which includes horizontal members arranged in series, vertical members supporting the horizontal members, and connectors for connecting the adjacent horizontal members or for connecting the horizontal member and the vertical member, wherein shock absorbers formed from a material with an elastic modulus in flexure over 200 kgf/cm2 and each having a wall structure in a shock-loading direction are disposed on the connectors or at the points of contact between the horizontal members or between the horizontal member and the vertical member.

Abstract: A resin impact absorber comprising a hollow columnar body having a honeycomb section or a hollow columnar body having a cylindrical shape, the hollow columnar body being made of a resin with a flexural modulus of 500 to 5000 kgf/cm.sup.2, wherein a reaction-compressibility curve at the time of compression in the lengthwise direction of the columnar body satisfies the following conditions: (a) yield strength.gtoreq.100 Tf/m.sup.2 and (b) compression energy absorption.gtoreq.50 Tf.m/m.sup.3. The resin impact absorber of the present invention is small in size and light in weight and exhibits a high impact energy absorption capacity. A site or structure with an impact absorber of the present invention disposed therein can be prevented from remarkable damage or breakage when it receives a high impact force.

Abstract: A resin shock absorber comprising a compression deformable portion made of a resin having a flexural modulus of elasticity of 500 to 20,000 kg/cm.sup.2, said shock absorber having a yield strength of 2 to 25 kN/m.sup.2 and a compressive energy absorption efficiency of 50% or higher. The shock absorber of the present invention has a high energy absorption efficiency for its reaction force, superior restorability, and is maintenance-free since the absorber has resistance against corrosion, water and weather. Therefore, the absorber is applicable to the use in the sea, on the ground, as well as above the ground. Furthermore, the shock absorber can be easily extended on demand into a block shock absorber, which is light in weight and simple in structure and capable of exhibiting uniform cushion characteristics over an extended area.