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[提要]  運(yùn)用由梁單元、桿單元及索單元組成的混合有限元法對(duì)索支承門式剛架結(jié)構(gòu)進(jìn)行參數(shù)分析，從而明
確了撐桿數(shù)目、撐桿截面面積、鋼索預(yù)應(yīng)力、鋼索面積、鋼索垂跨比等因素對(duì)這種結(jié)構(gòu)力學(xué)性能的影響，得出了一些有用的結(jié)論，供工程設(shè)計(jì)時(shí)參考。
[關(guān)鍵詞]  索支承門式剛架  預(yù)應(yīng)力鋼結(jié)構(gòu)  撐桿  鋼索

The cable-strut portal frame is modeled by beam, truss and cable element. To make clear the influence of such factors as strut number, strut section area, prestress in cable, cable section area and the deflection to span ratio of cable on the load-carrying behavior of this kind of structure, parameter analysis is carried out with a mixed finite element program, from which some useful conclusions are drawn.
Keywords:  cable-strut portal frame; prestressed steel structure; strut;steel cable

    參  考  文  獻(xiàn)
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