發(fā)布時(shí)間：2018-12-26 07:06

【摘要】：基于柱子曲率分布的二次拋物線假設(shè),采用虛功原理來(lái)計(jì)算二階偏心距,得到簡(jiǎn)化的平衡方程。對(duì)于截面抗力,考慮完整的鋼筋和混凝土本構(gòu)關(guān)系,采用由應(yīng)變計(jì)算內(nèi)力的逆解方法來(lái)計(jì)算。對(duì)于極限曲率,將精確方法與我國(guó)《混凝土結(jié)構(gòu)設(shè)計(jì)規(guī)范》(GB50010-2010)中的簡(jiǎn)化方法比較和分析,提出考慮配筋率的更為合理的簡(jiǎn)化公式。通過(guò)對(duì)坐標(biāo)系的設(shè)計(jì)和構(gòu)思,將平衡方程所有可能的解繪制成圖形,計(jì)算3個(gè)基本變量和在圖形中做4條輔助線,便可進(jìn)行配筋設(shè)計(jì),為設(shè)計(jì)人員提供了一種簡(jiǎn)單高效的手算工具。
[Abstract]:Based on the quadratic parabola assumption of the curvature distribution of the column, the second order eccentricity is calculated by using the virtual work principle, and the simplified equilibrium equation is obtained. For cross section resistance, the complete constitutive relation of steel bar and concrete is considered, and the inverse solution method of internal force is used to calculate the internal force from strain. For the limit curvature, the accurate method is compared with the simplified method in concrete structure Design Code (GB50010-2010) of our country, and a more reasonable simplified formula considering reinforcement ratio is put forward. Through the design and conception of the coordinate system, all the possible solutions of the equilibrium equation are drawn into graphics, three basic variables are calculated and four auxiliary lines are made in the graph, then the reinforcement design can be carried out. It provides a simple and efficient manual computing tool for designers.
【作者單位】： 昆明理工大學(xué)建筑工程學(xué)院;昆明冶金高等�？茖W(xué)校建工學(xué)院;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(51468026,51268022) 國(guó)家青年科學(xué)基金項(xiàng)目(51308269)
【分類號(hào)】：TU375.3

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本文編號(hào)：2391707