Structural pounding will enhance the response of acceleration and displacement under earthquake excitations. The increase of stress may lead to concrete cracking

expansion joint damage and even bridges collapse. Therefore

pounding mitigation measures for highway bridges are necessary. In this study

a kind of novel shock absorber made of shape memory alloy pseudo-rubber（ SMAPR-SAD） is presented

and the control effect of SMAPR-SADs on bridge pounding is investigated through shaking table test. The indexes representing energy absorption and dissipation of SMAPR-SAD during bridge pounding are also proposed. Results show that SMAPR-SAD has stable energy dissipation ratio and can greatly reduce the pounding acceleration and pounding force

which is of important significance to the structural performance of city transport network during earthquakes.