【摘 要】
：
Recently in Korea,prestressing 7-wire strands have been improved to have higher yield and tensile strengths than those of the exiting strands.
【机 构】
：
Seoul National University,Seoul,Korea
【出 处】
：
The 7th International Conference on Bridge Maintenance, Safe
论文部分内容阅读
Recently in Korea,prestressing 7-wire strands have been improved to have higher yield and tensile strengths than those of the exiting strands.
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