Numerical analysis of mechanical properties of precast segmental concrete test beam with external tendons

被引：2

作者：

Jiang, Haibo ^{[1
]}

Deng, Yansong ^{[1
]}

Qiu, Yun ^{[1
]}

Wei, Chungen ^{[2
]}

Chen, Li ^{[1
]}

Feng, Wenxian ^{[1
]}

机构：

[1] Guangdong Univ Technol, Fac Civil & Transportat Engn, Guangzhou 510006, Guangdong, Peoples R China

[2] Highway & Bridge Construct Dev Ltd Co Guangdong P, Guangzhou 510635, Guangdong, Peoples R China

来源：

ADVANCES IN CIVIL INFRASTRUCTURE ENGINEERING, PTS 1 AND 2 | 2013年 / 639-640卷

关键词：

external tendons; precast segmental concrete; numerical simulation; dry joint; finite element; BRIDGE;

D O I：

10.4028/www.scientific.net/AMR.639-640.460

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A finite element model is proposed for numerical analysis of mechanical properties of precast segmental concrete test beam with external tendons. The 3D finite element model of test beam is established by SOLID65 element in ANSYS software, while the dry joint between segments is simulated by contact element, and the attachment between concrete beam and external prestressed tendons is achieved by node coupling method. Numerical simulation analysis reveals structural behavior, stress variations and crack opening cases of joints of the test beam by considering the concrete material and geometric nonlinearity. Influencing factors of the bending mechanical properties of the test beam are researched with different tendon types, secondary effect of external tendons and external tendon slip at deviation. Results of the numerical analysis reveal that the segmental joints are in the compressive state below the 3001N. Crack opening is the key factor of the mechanical properties of the test beam above the 300kN. The results can be used for structural design. of precast segmental bridge.

引用

页码：460 / +

页数：2

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