- 摘 要
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牛建剛1，王衛(wèi)倫2，牛荻濤3
（1 內(nèi)蒙古科技大學(xué)建筑與土木工程學(xué)院，包頭014010；2深圳市土木工程耐久性重點實驗室，深圳518060；3 西安建筑科技大學(xué)土木工程學(xué)院，西安710055）[摘要] 考慮環(huán)境作用引起的結(jié)構(gòu)耐久性損傷對結(jié)構(gòu)構(gòu)件抗力的影響，通過對抗力基本參數(shù)劣化規(guī)律的分析，建立了混凝土結(jié)構(gòu)的抗力衰減模型，并分析了抗力的統(tǒng)計參數(shù)；在當(dāng)前建筑結(jié)構(gòu)荷載與抗力的調(diào)查統(tǒng)計分析基礎(chǔ)上，提出了結(jié)構(gòu)的動態(tài)可靠性分析方法。以鋼筋混凝土受彎構(gòu)件為例，具體分析了構(gòu)件抗力平均值和結(jié)構(gòu)可靠度隨時問的變化規(guī)律，為建立考慮結(jié)構(gòu)抗力衰減的可靠度設(shè)計方法奠定了基礎(chǔ)。
[關(guān)鍵詞] 混凝土結(jié)構(gòu)；動態(tài)可靠度；抗力衰減；受彎構(gòu)件Reliability analysis of the residential buildings based on resistance deterioration
Niu Jiangang1, Wang Weilun2, Niu Ditao3
(1 School ofArchitecture and Civil Engineering Inner Mongolia University of Technology, Baotou 014010, China; 2 Shenzhen Durability Center for Civil Engineering, Shenzhen 518060, China; 3 School of Civil Engineering, Xi'an University ofArchitecture and Technology, Xi'an 710055, China)Abstract: Considering durability damage of structural elements under environment action, the deterioration ofresistance fundamental parameters were analyzed, and the models of resistance degradation of concrete structure were built. Based on the investigation on the load and resistance of present buildings, the dynamic reliability analysis method of structure was proposed. The reinforced concrete flexural member was taken as an example in the specific analysis by the mean of resistance and structural reliability which varies with time. The results can be a reference for the reliability design method of structure.
Keywords: concrete structure; dynamic reliability; resistance deterioration; flexural member
