chicagopcclcar Posted October 3, 2012 Author Report Share Posted October 3, 2012 David - Thanks for the explanation. I think I was over-thinking what those would be ... maybe I was looking for something larger. I thought that they would be those X-shaped stiffening sections found every fourth bent on the northside or Ravenswood structure. I don't know what those are actually called. But, I've included them on my O scale model (at least I've tried to make it every fouth bent) and have found that they really do work. Those sections really help "stiffen" things up, so to speak. But, looking at the picture again, I realized that the section of structure shown in the picture is missing those X-shaped sections, so that looks to be used on the northside only (I could be very wrong, just my guess). And yes, you are correct ... not a lot of documentation to be had on the actual structure itself. So, I've made do with my casual observations. My structure is pretty basic, but was quick to build. Someday I hope to have something better/more prototypically accurate. Thanks again, Terry G The "X" sections are called tower bents. They are included as a part of most 'L's built after 1897. The design was fostered by the premiere railroad bridge engineer, Dr. J. A. Waddell, who did the Northwestern and the Ravenswood branch. The tower bents were copied into almost everything else except over the street 'L' structures. DH Quote Link to comment Share on other sites More sharing options...
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