Seismic Retrofit of Reinforced Concrete Building Structures with Prestressed Braces

摘要

A prestressed concrete brace system was first proposed in 2001 to dramatically simplify seismic strengthening procedures. Since the proposed system does not necessitate any steel bar anchorage, the construction period is shorter and the construction cost is lower. The system has been revised in terms of its aesthetics, materials, and construction methods since the first proposal of the system. This paper introduces a series of prestressed concrete brace system and discusses their interesting features. Design procedures and some examples are also introduced with experimental results.