Second order effect analysis of reinforced concrete frames based on analytical stiffness model

被引：0

作者：

Xu, Jing ^{[1
,2
]}

Gong, Jin-Xin ^{[2
]}

Jiang, Xiu-Gen ^{[1
]}

机构：

[1] College of Water Resources of Civil Engineering, China Agricultural University, Beijing

[2] State Key Laboratory of Costal and Offshore Engineering, Dalian University of Technology, Dalian, 116024, Liaoning

来源：

Gongcheng Lixue/Engineering Mechanics | 2015年 / 32卷 / 09期

关键词：

Analytical stiffness model; Nonlinear analysis; Reinforced concrete frame; Second-order effect; Structural engineering;

D O I：

10.6052/j.issn.1000-4750.2014.02.0105

中图分类号：

学科分类号：

摘要：

The load capacity of reinforced concrete frames is investigated considering the material and geometrical nonlinear characteristics. An analytical stiffness model for reinforced concrete frames is presented based on the equivalent curvature formula derived from Eurocode. The tension stiffening of concrete is taken into account within the analytical stiffness model. Based on the deformation compatibility condition, the deflection equations are derived considering the P-Δ effect and P-δ effect. The moment redistribution in the frame is achieved based on the proposed analytical stiffness model and the deflection equations. Comparison with test data illustrates that the proposed load capacity evaluation method is feasible and the bending moment and lateral deflection of the frames increase nonlinearly with the increase of the bearing load. ©, 2015, Tsinghua University. All right reserved.

引用

页码：111 / 118

页数：7

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