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.
Once a very powerful and influential family, the Qing dynasty ruled for about 300 years. However, they failed because of internal corruption and the denial of changing times. Date Event 1636 A.D. The Qing dynasty begins. In 1636 Huang Taiji of Manchuria in northeast China renames his region Qing. The word in Chinese means pure. 1644 A.D. A call for help creates an empire. Li Zicheng attacks the capital of the Ming dynasty. Emperor Ssu Tsung kills himself. When the rebels lay siege to an outpost at the Great Wall, Prince Dorgon of the Manchus helps defeat the rebels and then places his nephew, Shunzhi, on the throne.