Out-Of-Plane Dynamic Test of Unreinforced Masonry Walls Retrofitted and Response Values of Recent Acceleration Records

Abstract eng:
This paper describes the out-of-plane dynamic test results of unreinforced masonry walls in the Section 1 and the response values of acceleration records in recent years in the Section 2. In the Section 1, the houses of unreinforced masonry walls are used in the developing countries. They sometime collapsed in the direction of out-of-plane in severe earthquakes. The retrofitting and the disaster reduction of them are necessary. Therefore, the out-of-plane dynamic tests of unreinforced masonry walls are executed to know the effects of retrofitting. The specimen has 3 walls, which are a main wall and the 2 transverse walls. The 1st specimen is considered to be a 1st storey house, and the 2nd specimen is to be the 1st storey of the 2 storey house. Both specimens are retrofitted by the popular wire netting on one side of in-house. The predominant frequency of the masonry walls with retrofitting are near to the frequency of the natural period of the specimen or the predominant frequency on the steel frame basement. The damping factors are also calculated. They are from 2% to 5%. In the Section 2, the response values of acceleration records of 2016 Kumamoto Earthquake and 2015 Kathmandu Earthquake are analyzed. These response values are caparisoned with those of the recent acceleration records.

• Export as: BibTeX | MARC | MARCXML | DC | EndNote | NLM | RefWorks
• Add to your basket