Correct　evaluation　for　bond-slip　effects　is　a　crucial　point　when　investigating　progressive　damage　of　reinforced　concrete　structures　under　random　or　earthquake　excitations.　For　bridges,　this　aspect　affects　in　particular　the　seismic　response　of　piles＇　base　and　pier-deck　joint　in　Integral　Abutment　Bridges　as　well.　The　need　for　a　bond　model,　more　accurate　than　those　currently　available　in　literature,　without　renouncing　to　ease　of　implementation,　suggested　to　develop　a　new　one.　This　model　is　defined　by　summing　the　effects　of　different　bond　resistance　contributes　(namely　mechanical　bond,　friction　bond　and　virgin　bond)　defined　by　means　of　continuous　functions.　This　allows　to　fit,　with　reasonable　precision,　experimental　monotonic　and　cyclic　bond-slip　paths,　even　along　reloading　branches.　New　relationships　have　been　provided　for　updating　the　main　law　parameters　at　each　load　reversal.　Moreover　a　specific　progressive　damage　rule　is　introduced,　able　to　account　for　generalized　excitation.　The　proposed　law　has　been　validated　by　comparison　with　several　existing　pull-out　cyclic　data　obtained　from　short-anchorage　tests　in　good　confinement　conditions.　©　2012　Taylor　&　Francis　Group.