- 摘 要
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（昆明理工大學(xué)建筑工程學(xué)院， 昆明 650500）
［摘要］在結(jié)構(gòu)的設(shè)計使用年限內(nèi)，鋼筋混凝土結(jié)構(gòu)不僅要承受荷載作用，而且要承受環(huán)境介質(zhì)的侵蝕作用。環(huán)境介質(zhì)的侵蝕使混凝土和鋼筋劣化，結(jié)構(gòu)承載能力降低，構(gòu)件劣化達到一定的程度時將影響其正常使用。鋼筋混凝土結(jié)構(gòu)中鋼筋的性能劣化對混凝土的構(gòu)件的使用壽命起著決定性作用。從梁底受力縱筋銹蝕入手，假定鋼筋混凝土梁端錨固可靠，銹蝕鋼筋只在梁中發(fā)生粘結(jié)滑移。利用ANSYS軟件分析受力鋼筋在不同銹蝕率下，對鋼筋混凝土梁極限承載力的影響，為混凝土結(jié)構(gòu)可靠性評估打下基礎(chǔ)。
［關(guān)鍵詞］鋼筋銹蝕； 極限承載力； 粘結(jié)滑移； ANSYS
中圖分類號： TU375 文獻標(biāo)識碼： A 文章編號： 1002-848X(2015)S2-0396-04
Analysis of the ultimate bearing capacity of corroded beam on the base of ANSYS
Zhao Weidong， Peng Zhichao
（ Institute of Architectural Engineering of Kunming University of Science and Technology, Kunming 650500, China）
Abstract: In the structure′s design life, the reinforced concrete structure not only bear the load, but also withstand the environmental media erosion. The erosion of the environmental media makes concrete and rebar degrade, reduces the bearing capacity of the structure. Reaching a certain extent, it will affect their normal use. The degradation of rebar plays a decisive role. From the beam bottom longitudinal reinforcement corrosion to start, assuming the anchoring of reinforced concrete is realiable at the end of the beam, the bond-slip only occurred in the beam other than the end of beam. Ultimate bearing capacity of reinforced concrete beam in different corrosion rate of reinforced stress on the base of ANSYS was analyzed, it makes a foundation for structural reliability assessment.
Keywords: steel corrosion; ultimate bearing capacity; bond-slip; ANSYS
作者簡介：趙衛(wèi)冬，碩士，Email:562598783@qq.com。
