In certain embodiments, a bridge 110 may be engaged to a foundation 112 by {HEAD ~ a fixed connection}, {TAIL ~ a pinned connection}, a roller connection, or by another connection 
In certain embodiments , a bridge 110 may be engaged to a foundation 112 by { HEAD ~ a fixed connection } , { TAIL ~ a pinned connection } , a roller connection , or by another connection
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH