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為了得到高強(qiáng)鋼板的滯回性能,對(duì)Q460C高強(qiáng)度結(jié)構(gòu)鋼材的單調(diào)和循環(huán)加載性能進(jìn)行了試驗(yàn)研究.試驗(yàn)包括3個(gè)單調(diào)拉伸、黑龍江牡丹江3個(gè)單調(diào)壓縮和10個(gè)不同加載制度的循環(huán)加載,得到了單調(diào)和循環(huán)加載的應(yīng)力-應(yīng)變曲線；分析了單調(diào)和循環(huán)加載下的宏觀試驗(yàn)現(xiàn)象以及斷口的電鏡掃描結(jié)果.基于Ramberg-Osgood公式,對(duì)各種循環(huán)荷載下鋼材的骨架曲線進(jìn)行了擬合,得到了對(duì)于高強(qiáng)度結(jié)構(gòu)鋼材Q460C普遍適用的循環(huán)骨架曲線公式,并將其中的對(duì)稱循環(huán)加載骨架曲線和單調(diào)加載曲線進(jìn)行了比較；在Chaboche鋼材塑性本構(gòu)模型的基礎(chǔ)上,通過試驗(yàn)標(biāo)定了材料模型參數(shù),結(jié)合有限元程序ABAQUS對(duì)6種加載制度的循環(huán)加載試驗(yàn)進(jìn)行了有限元模擬,模擬結(jié)果與試驗(yàn)結(jié)果吻合很好。