Month: November 2015

Ed Wilson – Termination of the Response Spectrum Method

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Ed Wilson

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Fear of Earthquakes – by Ed Wilson

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A Civil Engineer Dies

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A Civil Engineer dies and reports to the pearly gates. St. Peter checks his dossier (without his eye glasses) and says, “Ah, you’re a Civil Engineer — you’re in the wrong place.” So the engineer reports to the gates of hell and is let in. Pretty soon, the engineer gets dissatisfied with the level of comfort in hell, and starts designing and building improvements. After a while, they’ve got air conditioning and flush toilets and escalators, and the engineer is a pretty popular guy.

One day God calls Satan up on the telephone and says with a sneer, “So, how’s it going down there in hell?” Satan replies, “Hey, things are going great. We’ve got air conditioning and flush toilets and escalators, and there’s no telling what this engineer is going to come up with next.” God replies, “What? You’ve got an engineer? That’s a mistake — he should never have gotten down there; send him up here.” Satan says, “No way. I like having an engineer on the staff, and I’m keeping him.” God says, “You send him back up here or I’ll sue.” Satan laughs uproariously and answers, “Yeah, right – and just where are YOU going to get a lawyer?”

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A Point Of View

To the optimist, the glass is half full.

To the pessimist, the glass is half empty.

To the engineer, the glass is twice as big as it needs to be.

 

Copy from : http://www.edwilson.org/Humor/Humor.htm#An%20Engineer%20Dies

Live Load Area Parkir

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Di indonesia ada perbedaan antara beban Live Load untuk area parkir jika dibandingkan dengan ASCE. Di Indonesia praktiknya digunakan Live Load = 400 kg/m2 (3.9 kPa) dan bisa direduksi bergantung tributary area atau jumlah lantai, sementara itu di ASCE digunakan beban Live Load = 200 kg/m2 (1.9 kPa) namun tidak boleh direduksi.

Kalau di lihat praktik di Indonesia lebih konservatif untuk komponen lentur balok kolom, namun untuk desain kolom dengan tributary yang besar maka keduanya tidak begitu berbeda. Ada baiknya kalau kita melihat historis mengapa ASCE menggunakan beban LL = 1.9 kPa di paper S. K. Ghosh berikut ini :

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