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.
The Qing Dynasty (1644-1911) is notable for two important emperors. â¢Kangzi Emperor was the longest-ruling emperor in China's history (sixty-one years); wrote the most complete Chinese dictionary; and tried to adopt Western technology. â¢Qianlong Emperor had conflicts with European imperialism that took shape with the opium trade; and demanded that Europe trade with silver.