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I restored a press that will do your work. Most web and flange punches don't have the throat clearance to drive anything over an inch or two in length. That diameter and head style with pneumatic tools will fail too. You really need to hit them hard. If scaling is a concern I would drive them...

Most pedestrian bridge mfgr's use D1.1 as a basis but I have seen some use D1.5 with seismic reqmt's which technically means a much bigger paycheck for the inspector. Most test labs utilize a combination of D1.1 and ICC criteria for their inspections which in a nutshell should include...

I don't want to sound alarmist but Buy domestic. We had several thousand 1/2" A325's on a snug-tight pedestrian bridge job that guys were stripping out by hand. Got back to the shop, put them through some torque tests and found out they barely made spec. The domestics were capable of almost...

Sorry, didn't see that in the intial post- not that I'm aware of

Real sorry I missed this thread, being pretty passionate about the subject. Rivets are indeed still used in industry. The railroads use more than a million per year from just one supplier I know of. Airplanes, etc. The example of auto and truck shock towers still being riveted is telling. I...

It may have changed in the 2010 edition. As of the 2002 edition section 5.11 "...All welding and thermal cutting eqpt. shall be in such condition...to attain the results as desired in the code" Leaves alot of latitude. Defined - if the machine produces the req'd weld- it's fine. D1.5...

I'm very intrigued. I think I'll try it on my next bolting inspection~. Early NDT methods included 'ringing' a casting to sound it out. Come to think of it, Hines's famous portraits of the construction of the Empire State building show a riveting inspector using a small hammer to do the same...

With respect to all the experts here, as a welder this is a difficult assignment. Is the pipe fixed in position or can it be rotated? Nickel rod flows like water and you'll have a heckuva time if you are in position, running uphill or down. I have had good success welding ductile with SMAW in as...

Is it in the weld or base metal? 12.9- as recv'd inspection of base metal per ASTM A6 I don't know the spec off-hand for surface roughness. 12.17.6- '...Surfaces shall be ground when necessary to facilitate visual inspection and ndt.' I'd treat it like an arc strike and flush grind it...

I made alot of U-bolts in my last job. The rule of thumb is any radius tighter than 4D gets bent hot. Don't even think of doing it cold with an alloy steel. Worse case: Alloy steel, tight radius, cold bending, PICKLING, then galvanizing. ~TING~! Steve CWI UT3 Blacksmith

"Moisture Resistant" I don't know why it hasn't been mentioned yet; electrodes with an 'R' designator (E7018-H4R, E8018C3-H4R, etc.)for steels with yield strengths up to 50 ksi may be used with atmospheric exposure times of up to 9 hours. Cite:D1.5 2008(Bridges) 12.6.5.8 'For steels above 50...

This is great! I basically set up this page on my blacksmithing site because of the groans heard on sites like this when riveting was mentioned. Take a look: http://www.ballardforge.com/web/rivets.html If you need to find qualified riveters, let me know, Cybo

Not Galvanized. Weathering steel A588 or as I should say A 847 for tubular shapes. The tube segments are approx 8'long and will be completely enclosed via welding. The only real consideration here is condensation inside the tube. I can't find anything to say this needs consideration.

Ok, I give up. Where in D1.1 does it say tubular structures need weep holes? I can't find anything on it from AISC, either. Any AASHTO comments on it? Application: A segmented arch pedestrian bridge, HSS 8x8x3/8" A588. TIA, Cybo

Ha ha, UncleCyd! T'wasn't me that stole your info- I promise~! We base alot of our procedures on the 'old ways'. Our design reference for suspension bridges is Steinmans' treatise on the subject circa 1906. Apparently he worked for some guy named Roebling. Spelter sockets are the only wire...

Hi SubSea. I work for a pedestrian cable bridge co. and use spelter sockets extensively. Houston structures (Ulven corp) is our main supplier for bridge bowls and sockets. Check out our page at www.sahale.com. The Baker River bridge has some good photos of the brooming/socketing process. We use...