This is as much a prototype question as a modeling one. I’m about to build a deck girder bridge from a CV kit (HO gauge) but should make it offset or skewed as the upper mainline passes over the lower track at a small angle. If it were a crossing it would be about 25 degrees.
Anyhow the question is: where should the larger bridge ties end and the normal track ties start at each end? Given that the girders are offset a bunch do I continue the bridge ties onto the roadbed or stop them at the end of the shorter girder?
I assume that the abutments and bridge should be skewed - right? …Given the sharp angle of the tracks.
Walt
Just a guess. The bridge ties should stop and start at the abutments. Your abutments should follow the track line no matter the angle. I’m trying to get a mental picture of your dilema. If possible, draw a picture of your bridge and lay the bridge ties down to see where everything goes and don’t forget the abutments. Color them so you know where they are. This will give you the best indication of what’s what and will come in handy the next time you want to build an offset brige or tressel. Hope this helps some.
Archie
P.S. Yes, the abutments and bridge will be skewed, but the abutments are what will pull this off for you. The picture should prove this out. The bridge might even look straight.
Search for pictures of the Skew Bridge on the Reading Railroad in Reading, PA. It still stands outside the site of the Outer Station (RIP, damn arsonists…[:(!]) and is used by NS and RBM&N. It’s be dedicated as some sort of historic bridge by one civil engineering group or another. There are some very good pictures as well as plan diagrams in Ben Barhardt’s Outer Station book.
–Randy