Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Flexural Stiffness Reduction Factor of Reinforced Concrete Bridge Pier with Circular Section
The reduced stiffness method had been adopted to evaluate the material nonlinearity characteristics of reinforced concrete structures to be in compliance with concrete structure standards in the United States and Canada. Concrete structure design code in China also accepts the reduced stiffness method as a supplementary method of considering the second-order effects problem. However, bridge codes of China still use amplified coefficients of eccentricity to consider geometrical nonlinearity characteristics of reinforced concrete bridge pier. The flexural stiffness reduction factor of reinforced concrete bridge piers with rectangular section has been researched as it relates to material nonlinearity and geometrical nonlinearity. However, the flexural stiffness reduction factor of reinforced concrete bridge pier with circular section considering the two kinds of nonlinear characteristics lacks this type of corresponding research. Based on the numerical integral method, the regulation of the flexural stiffness can change in the existed test models of reinforced concrete bridge piers with circular section under different axial load levels and different levels of seismic action. The results are reported and it is concluded that the theoretical values are in agreement with the test values. As a result, the flexural stiffness reduction factor is proposed to consider the characteristics of material nonlinearity and geometrical nonlinearity of reinforced concrete bridge pier with circular sections.
Flexural Stiffness Reduction Factor of Reinforced Concrete Bridge Pier with Circular Section
The reduced stiffness method had been adopted to evaluate the material nonlinearity characteristics of reinforced concrete structures to be in compliance with concrete structure standards in the United States and Canada. Concrete structure design code in China also accepts the reduced stiffness method as a supplementary method of considering the second-order effects problem. However, bridge codes of China still use amplified coefficients of eccentricity to consider geometrical nonlinearity characteristics of reinforced concrete bridge pier. The flexural stiffness reduction factor of reinforced concrete bridge piers with rectangular section has been researched as it relates to material nonlinearity and geometrical nonlinearity. However, the flexural stiffness reduction factor of reinforced concrete bridge pier with circular section considering the two kinds of nonlinear characteristics lacks this type of corresponding research. Based on the numerical integral method, the regulation of the flexural stiffness can change in the existed test models of reinforced concrete bridge piers with circular section under different axial load levels and different levels of seismic action. The results are reported and it is concluded that the theoretical values are in agreement with the test values. As a result, the flexural stiffness reduction factor is proposed to consider the characteristics of material nonlinearity and geometrical nonlinearity of reinforced concrete bridge pier with circular sections.
Flexural Stiffness Reduction Factor of Reinforced Concrete Bridge Pier with Circular Section
Zhang, Chunxiang (Autor:in) / Yao, Zhiquan (Autor:in) / Luo, Pengfei (Autor:in) / Shen, Dongjian (Autor:in) / Wang, Jianxin (Autor:in)
Tenth International Conference of Chinese Transportation Professionals (ICCTP) ; 2010 ; Beijing, China
ICCTP 2010 ; 3410-3416
22.07.2010
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Flexural Stiffness Reduction Factor of Reinforced Concrete Bridge Pier with Circular Section
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