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Lobato Design Assumption

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Nathan

September 10, 2010 08:54AM

Registered: 13 years ago
Posts: 3

As a bridge engineer, I reviewed the Lobato Bridge Rehabilitation Report by HDR and noticed one design assumption that concerned me. The load rating did not account for impact due to hammer blow of the engine due to the bridge being in a sag vertical curve and the train coasting on the tracks in this section. I envision this being the case 99.99% of the time, but what about an unlikely scenario that requires the train to slow or stop in this section of track and have to power up the backside of the slope (say if a something is on the track). Thoughts?

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Subject	Author	Posted
Lobato Design Assumption	Nathan	September 10, 2010 08:54AM
Re: Lobato Design Assumption	Etrump	September 10, 2010 09:52AM
Re: Lobato Design Assumption	Tom Stewart	September 10, 2010 10:08AM
Re: Lobato Design Assumption	Earl	September 10, 2010 10:21AM
Re: Lobato Design Assumption	Tom Stewart	September 10, 2010 10:42AM
Re: Lobato Design Assumption	Earl	September 10, 2010 11:00AM
Re: Lobato Design Assumption	Gavin Hamilton	September 11, 2010 09:58AM
Re: Lobato Design Assumption	bookemdanno	October 02, 2010 06:26AM
Re: Lobato Design Assumption	El Nehi	September 10, 2010 11:55AM
Re: Lobato Design Assumption	nedsn3	September 10, 2010 09:38PM

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