ABSTRACT
The seismic responses of the base plate yielding systems are examined comparing with those of the fixed-base systems by shaking table tests, which are carried out using a three-story, one-by-two bay braced steel frame of two thirds scale. The total height of the frame is 5.3 meters and the total weight is 15.6 tons. The yielding base plates are attached at the bottom of each column at the first story of the test frame. Two types of base plates with different thickness are installed in the test frame. The earthquake ground motion used for the tests is the record of the 1940 El Centro NS component whose time scale is shortened to 1 / 2 https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9780203738290/e2228a9b-0854-4754-9c7b-790342322bf3/content/eq525.tif"/> . The maximum input acceleration is adjusted in several levels to examine the responses of each system. From the test results, it is concluded that the base plate yielding systems can reduce effectively the seismic responses of steel frames.
