Indonesia is among the earthquake prone countries with the largest deaths

percentage caused by building collapse. On the skeletal system of earthquake

resistant structure, based on Seismic Provisions for Structural Steel Buildings

(AISC) 2010, a performance evaluation of energy dissipation to link beam (e) in

the Eccentrically Braced Frames (EBF) type K-braces system has been done, since

the link beam acts as a damper withstand shear and bending forces due to

earthquake loads. Evaluation was done on short link beam (e ≤ 1,6Mp/Vp) vertical

web stiffener of 20 story EBF structure located in Padang -Sumatera Barat, by

studying the performance of short link vertical web stiffener blocks due to cyclic

loading in the form of displacement at a certain amplitude of the initial yield

velocity (Δy) varying by 1Δy, 2Δy, 5Δy, and 10Δy considered to represent extreme

seismic loads. The building was designed according to ANSI/AISC 2010 using

software Extended Three Dimensional Analysis of Building Systems (ETABS)

version 2016, with an earthquake load in accordance with SNI 1726:2012 which

refers to ASCE/SEI 7-10. The results showed that dissipation energy of short beam

link vertical web stiffener with loading below maximum load limit, on increasing

loading (1Δy, 2Δy, dan 5Δy), the greater the cyclic load increase the percentage of

energy decrease increase, and the number of plastic cycles before the impedance

decreases, while the constant loading (10Δy) has a relatively same decrease in

energy per cycle and increased number of plastic cycles before the collapse.