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(1 西安建筑科技大學(xué)土木工程學(xué)院 710055; 2 內(nèi)蒙古科技大學(xué)建筑與土木工程學(xué)院 包頭 014010)
[提要] 結(jié)構(gòu)荷載和抗力作為結(jié)構(gòu)可靠性分析時的重要參數(shù),直接影響著結(jié)構(gòu)可靠性。在對典型鋼筋混凝土住宅結(jié)構(gòu)樓面活荷載以及結(jié)構(gòu)構(gòu)件材料強度、幾何參數(shù)等抗力參數(shù)調(diào)查的基礎(chǔ)上,系統(tǒng)地研究了當(dāng)前住宅結(jié)構(gòu)的可靠性水平,分析了樓面活荷載取值標(biāo)準(zhǔn)對住宅結(jié)構(gòu)可靠度的影響以及裝修增加荷載對樓板可靠度的影響,得出了住宅結(jié)構(gòu)鋼筋混凝土受彎構(gòu)件可靠度降低的主要原因。
[關(guān)鍵詞] 住宅結(jié)構(gòu) 樓面活荷載 抗力參數(shù) 可靠性分析
Reliability Analysis on RC Residential Buildings/Niu Ditao1,Niu Jiangang 1,2,Hu Xiaopeng1(1 School of Civil Engineering,Xi'an University of Architecture and Technology, Xi'an 710055, China;2 School of Architecture and Civil Engineering,Inner Mongolia University of Technology, Baotou 014010, China)
Abstract:Load and resistance are the significant parameters in the reliability analysis that affect the structural reliability level directly. Based on the investigations on the floor live load and resistance parameters of typical residential buildings, such as the material strength and dimension tolerance of structural members, the present reliability level of residential buildings is studied, and the structural reliability as the result of altering the value of
floor live load and increasing load when the room is decorated is analyzed.The reasons why the reliability of reinforced concrete flexural member decrease are given.
Keywords:residential buildings; floor live load; resistance parameter; reliability analysis