Cyclic Behavior of Superelastic Shape Memory Alloy Wire for Innovative Precast Concrete Frame Connections

机译：创新的预制混凝土框架连接用超弹性形状记忆合金线的循环行为

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Smart precast concrete frame connection based on unbonded shape memory alloy (SMAPCFC) was proposed as a possible seismic resistance measure for reinforced concrete frame buildings. To investigate the restoring force characteristics of SMA wire, cyclic tensile tests on superelastic NiTi SMA wires with three diameters were carried out. The effects of the different loading conditions, namely: cyclic loading-unloading number, strain amplitude, loading frequency and ambient temperature, on the mechanical behavior described by some fundamental quantities, such as energy dissipation per cycle, secant stiffness, equivalent damping, residual strain, were examined. The temperature changes of the SMA wires due to the latent heat under different loading conditions were also discussed.

机译：提出了一种基于无粘结形状记忆合金（SMAPCFC）的智能预制混凝土框架连接方法，作为钢筋混凝土框架建筑物的抗震措施。为了研究SMA钢丝的恢复力特性，对三种直径的超弹性NiTi SMA钢丝进行了循环拉伸试验。不同加载条件（即循环加载/卸载次数，应变幅度，加载频率和环境温度）对一些基本量所描述的机械性能的影响，例如每个周期的能量耗散，割线刚度，等效阻尼，残余应变，进行了检查。还讨论了在不同负载条件下由于潜热而引起的SMA线的温度变化。

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来源
《Conference on Active and passive smart structures and integrated systems; 20090309-12; San Diego, CA(US)》|2009年|P.728819.1-728819.10|共10页
会议地点 San Diego CA(US)
作者
Hui Qian; Hong-nan Li; Gang-bing Song; Huai Chen;
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作者单位

School of Civil Engineering, Zhengzhou University, Zhengzhou 450001, China;

School of Civil and Hydraulic Engineering, Dalian University of Technology, Dalian 116024,China;

Department of Mechanical Engineering, University of Houston, Houston, TX 77204, USA;

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原文格式 PDF
正文语种 eng
中图分类系统科学;
关键词
shape memory alloy; superelasticity; smart concrete frame connection; tensile tests;

机译：形状记忆合金；超弹性；智能混凝土框架连接；拉伸试验;

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机译：超弹性形状记忆合金扣件智能对夹夹角连接的循环行为数值研究
2. Comparing the cyclic behavior of concrete cylinders confined by shape memory alloy wire or steel jackets [J] . Park J., Choi E., Park K., Smart Materials & Structures . 2011,第9期

机译：比较形状记忆合金丝或钢套限制的混凝土圆柱体的循环性能
3. Seismic Performance of Modular Steel-Braced Frames Utilizing Superelastic Shape Memory Alloy Bolts in the Vertical Module Connections [J] . Sultana Papia, Youssef Maged A. Journal of Earthquake Engineering . 2020,第4a6期

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4. Cyclic Behavior of Superelastic Shape Memory Alloy Wire for Innovative Precast Concrete Frame Connections [C] . Hui Qian, Hong-nan Li, Gang-bing Song, Conference on Active and passive smart structures and integrated systems . 2009

机译：超弹性形状记忆合金电线循环行为创新的预制混凝土框架连接
5. Performance of Superelastic Shape Memory Alloy Reinforced Concrete Elements Subjected to Monotonic and Cyclic Loading. [D] . Abdulridha, Alaa. 2013

机译：承受单调和循环载荷的超弹性形状记忆合金增强混凝土元件的性能。
6. Uniaxial Compressive Behavior of Concrete Columns Confined with Superelastic Shape Memory Alloy Wires [O] . Chenkai Hong, Hui Qian, Gangbing Song 2020

机译：超弹性形状记忆合金丝约束混凝土柱的单轴压缩性能
7. Uniaxial Compressive Behavior of Concrete Columns Confined with Superelastic Shape Memory Alloy Wires [O] . Chenkai Hong, Hui Qian, Gangbing Song 2020

机译：混凝土柱的单轴压缩行为与超弹性形状记忆合金电线限制

Cyclic Behavior of Superelastic Shape Memory Alloy Wire for Innovative Precast Concrete Frame Connections

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