Bearing Capacity of the Corrosion Reinforced Concrete Axial Compression Members
based on the relationship between steel rust expansion force and the amount of corrosion,regarding reinforced concrete as a general continuum with the use of integral model,the finite element analysis models of axial compressive members were set up.Concrete units cracking and crushing were considered by the methods of multi-axial stress William-Warnke five-parameter failure criteria and fracture dispersion mode.For axial compression corroded reinforced concrete structures,firstly under the action of rust expansion force produced by steel corrosion,cracks begin to occur around the steel,then column comer steel cracks emerge by the direction of the protective layer and progressively extend to the entire protective layer.With the increasing of the steel corrosion rate,the ultimate bearing capacity reduces.According to the relationship of the corrosion rate and the capacity reduction,a simple method of calculation was established for corrosion axis of the bearing capacity of compression members.
Concrete structure Durability Compression members Steel corrosion
Wang Guoye Wang Zhipan Yin YU Wang Fengchi
School of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168 China
国际会议
厦门
英文
1830-1833
2012-01-04（万方平台首次上网日期，不代表论文的发表时间）