EXPERIMENTAL STUDY ON EARTHQUAKE RESISTANCE OF PRESTRESSED REINFORCED RAW-SOIL STRUCTURE

The prestressed reinforcement technology of raw-soil structure is a new aseismic reinforcement technology for the defects of arch kiln structure. The prestressed reinforcement technology is mainly divided into three types: prestressing wall piercing bolt, prestressing steel arch ring and prestressing steel strand. In situ blasting test of reinforced arch kiln structure shows that the seismic performance of the arch kiln in y direction is improved more significantly. The prestressed wall piercing bolt plays an obvious role in drawing the kiln face under the blasting excitation. The stress concentration in the side doors of arch kiln should be paid more attention in reinforcement design. The reinforcement technology can be promoted and applied in the reinforcement and reconstruction project of dilapidated houses. The technology has important scientific theoretical value, practical significance and application prospects.