The　adoption　of　inclined　columns　results　in　inclined　beam-column　joints　(BCJs).　Although　the　behavior　of　regular　BCJs　have　been　widely　investigated,　researches　on　the　cyclic　behavior　and　shear　strength　of　inclined　BCJs　are　limited,　and　further　investigations　are　required　to　ensure　seismic　safety　of　the　frames　adopting　inclined　columns.　In　this　work,　cyclic　behavior　of　inclined　BCJs　was　first　experimentally　studied　by　testing　3　exterior　BCJ　specimens.　After　that,　a　finite　element　model　was　developed　and　validated　by　the　experimental　results.　The　model　was　subsequently　used　for　parametric　study　to　reveal　the　effects　of　key　parameters　on　the　joint　shear　strength.　In　the　end,　a　theoretical　model　based　on　the　softened　strut　and　tie　model　was　proposed　to　estimate　the　joint　shear　strength　of　inclined　BCJs.　Results　showed　that　the　inclination　caused　an　initial　joint　shear　force　under　column　axial　load,　leading　to　different　joint　behavior　in　positive　and　negative　loading　directions.　The　joint　shear　strength　was　increased　in　the　inclination　direction　but　declined　in　the　other　direction,　while　the　ductility　showed　an　opposite　trend.　Meanwhile,　regardless　of　the　inclination　direction,　energy　dissipation　and　equivalent　viscous　damping　of　BCJs　were　reduced　and　stiffness　degradation　was　slowed.　The　parametric　study　revealed　that　the　inclination　effect　was　amplified　with　higher　inclinations.　The　overall　joint　shear　strength　can　be　effectively　enhanced　by　adopting　higher　concrete　strength　and　column　axial　load.　Increasing　the　joint　stirrup　ratio　was　also　beneficial　for　the　shear　strength,　but　its　efficiency　was　relatively　lower.　Based　on　the　comparison　of　the　predicted　joint　shear　strengths　and　those　from　experimental　and　numerical　programs,　it　was　proved　that　the　modified　strut　and　tie　model　was　advantageous　over　the　formulas　in　GB　50010　in　capturing　the　shear　strengths.　This　work　contributes　to　understanding　the　cyclic　behavior　and　shear　strength　of　inclined　BCJs　to　improve　seismic　safety　of　frames　adopting　inclined　columns.　©　2024　Elsevier　Ltd