Wind Resistant Design of Long Span Bridge at Big Indonesian Canyon

Ngarai Sianok Bridge consists of 3 main spans, each is 170 m. It also has 2 side spans with 87.5 m long. The two center pylons are 173.6 m tall while the height of other 2 pylons is 91 m. Deck is hybrid type that consists of prestressed box girder part, longitudinal steel stringer, cantilever... Continue Reading →

Structure and Machine Natural Frequency

Every machine and structure has  natural frequencies . if machines and structures are designed correctly, these natural frequencies will not affect the operation or reliability of the machines. In reality, however, a wide variety of fault condition are either caused by, or are affected by natural frequencies. It really is important to  understand what they... Continue Reading →

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