In most cases, the reinforcing bars in the concrete bridge deck should conform to the requirements of ASTM A615 or ASTM A706, both with a yield strength of 60 ksi, and modulus of elasticity equal to 29,000 ksi.
Qing Dynasty Government. Chinaâs Qing Dynasty, also referred to as the Manchu Dynasty, lasted from 1644 to 1912 and its government was complex. Inspired by the Ming Dynasty, which had immediately preceded it, the Qing emperors embraced a labyrinthine bureaucracy.hinaâs Qing Dynasty, also referred to as the Manchu Dynasty, lasted from 1644 to 1912 and its government was complex. Inspired by the Ming Dynasty, which had immediately preceded it, the Qing emperors embraced a labyrinthine bureaucracy.
Although they are now thoroughly identified with China, the emperors of the Qing dynasty were not Chinese but descendants of the Jurchen, a group from the far north-east of China who had abandoned the term Jurchen, associated with historical submission to Chinese rule, and instead called themselves Manchu.orn in March 15, 1638 he was the second emperor of the Manchu Qing dynasty and the first Qing emperor to rule over China proper. Only six when he ascended the throne the Shunzhi reign lasted from 1644 to 1661. The eighteen years of his reign brought great changes to China and its history.