Bolt type circumferential prestress tension enhancing or reinforcing device

The utility model relates to a bolt type circumferential prestress tension strengthening or reinforcing device, which comprises a carbon fiber plate or a carbon fiber plate group, and is characterized in that anchorage devices are arranged at two ends of the carbon fiber plate or two ends of the carbon fiber plate group, and at least one carbon fiber plate or carbon fiber plate group is connected through two adjacent anchorage devices with connecting mechanisms to form a circumferential structure; and the carbon fiber plate group is formed by laminating at least two carbon fiber plates. The connecting mechanism comprises single-lug plates or double-lug plates arranged at the rear ends of the two adjacent anchorage devices. The pre-stress tensioning device further comprises a detachable pre-stress tensioning retainer and a pre-stress tensioning auxiliary mechanism. The reinforcing structure is good in reinforcing or reinforcing effect, simple in structure and convenient to operate. Besides being used for annul