鋼筋混凝土橢圓形截面墩柱承載能力計算方法*
陳 斌，王小松，楊美云
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(重慶交通大學(xué)橋梁系，重慶400074)[摘要] 參照現(xiàn)行《混凝土結(jié)構(gòu)設(shè)計規(guī)范》(GB 50010—2010)，根據(jù)任意截面構(gòu)件正截面承載力的計算公式，提出了橢圓形截面墩柱正截面承載能力的數(shù)值迭代計算方法。為提高計算速度和精度，對橢圓形截面采用漸變網(wǎng)格的劃分形式，并編制計算程序。研究表明，該計算方法的計算效率較高，完全滿足設(shè)計配筋的要求。[關(guān)鍵詞] 橢圓形截面; 承載能力; 迭代計算; 漸變網(wǎng)格中圖分類號：TU375.3 文獻標(biāo)識碼：A 文章編號：1002-848X(2013)S2-0528-04*重慶市教育委員會基金資助項目(KJ080413)，重慶交通大學(xué)（橋梁）結(jié)構(gòu)工程重點實驗室開放基金資助項目(CQSLBF-Z10-1)。作者簡介：陳斌，碩士研究生，主要從事橋梁動力研究方面的研究，Email：chenbincqjt@163.com。Calculating method for bearing capacity of reinforcement steel columns with elliptic cross sectionChen Bin, Wang Xiaosong, Yang Meiyun(Department of Bridge Engineering, Chongqing Jiaotong University，Chongqing 400074, China)Abstract：Based on the formula for calculating bearing capacity of arbitrary reinforcement steel members in Code for design of concrete structures(GB 50010—2010), This article introduce an iterative method for calculating bearing capacity of reinforcement steel columns with elliptic cross section. In order to improve the computational speed and accuracy, the elliptical cross section is divided using gradient mesh and the calculation program is compiled. Studies have shown that the highly efficient calculation method can fully meet the design reinforcement requirements.Key words：Elliptic cross section; Capacity; Iterative computation; Gradient mesh
