Type IV PCB Maximum Span

This was a few years back, but: ~103' w/ 8000 psi conc, 42 strands, 6'-10" spacing, and continuous for LL. I imagine spans are going further now.
I don't know about it's performance, I changed jobs, states, my name......

Texas has standard configurations up to 115' but I'm pretty sure they go longer (130' or so?) for custom designs. I'm not sure if it's a modified version of the Type IV or the AASHTO standard beam.

Hg

Just so that we're on the same page, the AASHTO Type IV is a 54" deep I-girder. For most applications that I've done, these girders will go up into the 90-105' range with normal strength concrete, reasonable strand patterns and girder spacings up to 9'-9".

Usually by the time that we're getting into the 110-120' range, I use bulb-tee girders or the AASHTO Type 6.

Regards,
Qshake

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thanks guys
am updating my spread sheet program and was wondering if i should increase the span distances.

tincan

I've gone up to 125' with a Type IV girder spaced at about 5.5'. The concrete strength was 7000 at 28 days, 6000 at release.