Design and Construction Analysis of UHP-ECCLayer Reinforcement for a Brick Masonry Structure
After structural safety assessment of an existing brick masonry dormitory building,it was found that the bearing capacity and seis-mic resistance capacity of the walls were not in compliance with the code requirements,and therefore,it was necessary to carry out seismic retrofitting to allow for continued use.A proposal was made for the use of ultra-high performance engineering cementitious composite mate-rials(UHP-ECC)for surface reinforcement.The method of preparing UHP-ECC and testing its properties were introduced.The wall sur-face reinforcement design was carried out,and it was determined that a 10-15mm thick layer should be applied manually.The detailed process of the surface reinforcement method using UHP-ECC was described,including the construction process and key points.The results showed that the UHP-ECC prepared had good workability and was suitable for manual application;the vertical bearing capacity and seis-mic resistance capacity of the wall were significantly improved after reinforcement;and the construction process was convenient and had a minimal impact on the original building's use function.
brick masonry wallseismic reinforcementUHP-ECCreinforcement designreinforcement construction
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