Re: Look at the strands of re-bar sticking out.


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Posted by Keith in Washington [24.41.41.111] on Friday, March 05, 2010 at 11:37:41 :

In Reply to: Re: Look at the strands of re-bar sticking out. posted by David Sherman [24.32.202.83] on Thursday, March 04, 2010 at 15:39:43 :

Look at the photos again. It appears that all the columns and beams built into to the columns are fine. They do not even appear to be cracked. The rebar you see it from the road bed or its support beams. It looks like they got the overpass support right but failed on the road bed. I wonder if the columns moved when the earth shook and the road simply fell at one end. They may not have had the ends of the roadbed beams tied to the support columns and beams. They also may have made the perches that the roadbed beams too short. I have see retro fits where they extend the perches. Lots of retro fits out there were they either use cables or plate steel to tie it all together.



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