本文關(guān)鍵詞： 型鋼混凝土柱 試驗數(shù)據(jù)收集 性能狀態(tài) 指標(biāo)限值 回歸分析　出處：《土木工程學(xué)報》2017年06期 　論文類型：期刊論文

【摘要】：收集了206個國內(nèi)外型鋼混凝土(SRC)柱試驗結(jié)果,分析研究剪跨比、彎剪比、軸壓力系數(shù)、體積配箍率和配鋼率5個主要參數(shù)對SRC柱破壞形態(tài)的影響,提出以剪跨比、彎剪比劃分SRC柱破壞形態(tài)的方法。根據(jù)現(xiàn)行抗震設(shè)計規(guī)范和SRC柱的試驗破壞過程確定SRC柱的5個性能狀態(tài),以構(gòu)件骨架曲線為基礎(chǔ)得到構(gòu)件各性能狀態(tài)的位移角限值。在不同破壞狀態(tài)下,分析各性能狀態(tài)位移角限值和5個主要參數(shù)的關(guān)系,得到軸壓力系數(shù)是影響構(gòu)件位移角限值變化的關(guān)鍵參數(shù),統(tǒng)計得到與SRC柱5個性能狀態(tài)對應(yīng)的變形指標(biāo)限值,并進(jìn)行可靠性分析。結(jié)果表明該文所給出的破壞形態(tài)劃分方法能夠較好的預(yù)測不同的破壞形態(tài);根據(jù)軸壓力系數(shù)給出的SRC柱變形指標(biāo)限值的保證率在合理范圍之內(nèi)。
[Abstract]:The experimental results of 206 SRC columns at home and abroad are collected, and the effects of five main parameters, such as shear span ratio, bending shear ratio, axial pressure coefficient, volume hoop ratio and steel distribution ratio, on the failure modes of SRC columns are analyzed and studied. According to the current seismic design code and the test failure process of the SRC column, the five performance states of the SRC column are determined. Based on the skeleton curve of the member, the displacement angle limit value of each performance state of the member is obtained. Under different failure states, the relationship between the displacement angle limit value of each performance state and five main parameters is analyzed. The axial pressure coefficient is the key parameter that affects the limit value of displacement angle of the member. The deformation index limit corresponding to the five performance states of the SRC column is obtained by statistics. The results show that the method proposed in this paper can well predict the different failure patterns, and the limit value of SRC column deformation is within a reasonable range according to the axial pressure coefficient.
【作者單位】： 華南理工大學(xué)亞熱帶建筑科學(xué)國家重點實驗室;華南理工大學(xué)土木與交通學(xué)院;
【基金】：國家自然科學(xué)基金(51378221) 廣州市科技計劃項目(201504010008) 華南理工大學(xué)亞熱帶建筑科學(xué)國家重點實驗室創(chuàng)新探索項目(2014ZC16)
【分類號】：TU352.11;TU398.9
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本文編號：1543029