Head structure defects of 7738 umbrella-type tower are presented after snow damage. Improvement methods are introduced and check-up calculation of load is made.
经过雪害教训后，提出了7738伞形铁塔头部结构存在的缺陷，介绍了改进的方法，并进行有关载荷的校验计算。
This paper aims the exposition of the methods of detection of cable-stayed bridge, and aims the integration of simulation calculation and detection technique in order to check their consistency.
本文旨在阐述斜拉桥的检测方法，并将仿真计算和检测分析结合起来，以验证两者的一致性。
Expound working principle of extraction check valves and the calculation methods of the cylinder design.
阐述了抽气止回阀的工作原理及气缸的设计计算方法。
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