I was wondering if anyone would be able to provide some recommendations on the best software to design a multi span horizontally curved steel bridge with steel straddle bent pier cap beams. The steel girders will most likely be framed into the web of the steel straddle bent pier cap, which...
I was wondering if anyone would be able to provide some recommendations on the best software to design a multi span horizontally curved steel bridge with steel straddle bent pier cap beams. The steel girders will most likely be framed into the web of the steel straddle bent pier cap, which...
I am analyzing the sliding stability of the existing abutment for the reconstruction of the roadway pavement box in front of the abutment. The client requires that we verify that the sliding stability of the abutment is not compromised during construction and I was attempting to determine the...
I am analyzing the stability of an existing abutment for a bridge built in the 1930's and need to determine a coefficient of friction value for the existing expansion bearings. From the original design drawings it appears that the expansion bearings are comprised of a steel sole plate that...
We are performing construction services for a project on which we also performed the design. The superstructure is comprised of prestressed concrete, adjacent BI-48 box beams. Based on NJDOT specifications, the fabricator is to design and detail the transverse post tensioning rods/strands and...
DRC1, I considered treating this as a braced cut but since the only the top waler is tied back the flexibility of the wall should allow for active earth pressure to develop. I was considering to distribute the active earth pressure load to the walers in somewhat the same manner as you describe...
Here are the particulars about the wall:
1. 12" timber piles spaced at 4'-0" on centers. Every other pile is tied back to a drag pile.
2. Timber sheeting planks are vertical 2"x8" sheets in two layers (ship lapped)
3. The bulkhead is permanent since it will act as a bridge abutment.
4. There...
I am currently designing a tied back timber bulkhead to serve as a bridge abutment. The bulkhead is tied back near the top and there are two rows of timber walers. The timber walers are sandwiched between the piles and the timber sheeting planks. I have not had any luck finding design examples...
Does anyone have any experience with longitudinal glulam deck panels with a timber wearing surface? Looking for any arguments for/against this approach. Client is looking to widen existing structure and wants a timber wearing surface to match the existing structure. Any fatal flaws that...
Widening an existing timber beam bridge with transverse timber deck planks to one side with longitudinal glulam panels. To match the existing structure we are planning to use transverse timber deck planks on the proposed glulam widening panels. Utilizing a different deck system or an...
