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(內(nèi)蒙古科技大學(xué)，包頭 014010)

［摘要］通過8根矩形鋼管混凝土梁的試驗，研究分析了矩形鋼管混凝土梁的受力特點和承載能力，結(jié)果表明：矩形鋼管混凝土梁具有優(yōu)良的變形能力、較高的承載力和穩(wěn)定的后期承載力與變形性能，鋼與混凝土得到了充分利用。將矩形鋼管混凝土梁的受力性能與鋼筋混凝土梁和鋼梁的受力性能進(jìn)行了對比分析，矩形鋼管混凝土梁在承載力、變形能力、經(jīng)濟效益等方面較之其他梁有一定的優(yōu)勢。

［關(guān)鍵詞］矩形鋼管混凝土；梁；試驗研究；承載力；延性

Study on mechanical properties of concrete-filled rectangular steel tube beams

Li Bin, Wen Yang(Inner Mongolia University of Science and Technology, Baotou 014010, China)

Abstract:Through the experiment of eight concrete-filled rectangular steel tube beams(CFRSTB), the mechanical behavior and loading capacity of CFRSTB have been researched. The results show that they have good deformation capacity, higher loading capability, stable later stage loading capacity and deformation performance, the material property of concrete and steel are fully used. The mechanical behavior of CFRSTB were compared with reinforced concrete beams and steel beams, the results indicate that CFRSTB obviously have the advantage of flexural capacity, ductility and economical value.

Keywords:concrete-filled rectangular steel tube; beam; experimental research; bearing capacity; ductility

*內(nèi)蒙古自然科學(xué)基金(200711020701)，包頭市科技攻關(guān)項目(2006Z1004)，內(nèi)蒙古教育廳資助(NJ06141)。

作者簡介：李斌，博士，教授，Email:btlibin@nm165.com。

參考文獻(xiàn)

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