There is a article titled "Repair Welding Under Load" that was published in 1990. The authors are Huenersen, G. / Haensch, H. / Augustyn, J. This article was published within the "Welding in the World" Volume 28, Issue #9 and issue #10 journal. I have contacted the publisher, of "Welding in the...
Does anyone know where I can find a copy of ANSI A58.1 - 1955? I already have the 1972 and the 1982 version of this standard. I am looking for a copy of the 1955 version and NO one seems to be selling a copy.
Any information would be well appreciated.
In typical structural steel construction, shear connections are commonly used on the ends of beams. These shear connections are typically double (clip) angles welded to a beam and bolted to another beam. The distance to the first bolt, from the top of the beam, is usually 3" and additional bolts...
I have a 4'-0" deep Masonry Crawl space wall, below grade, that is on top of a continuous footing. Throughout its entire length, the masonry wall supports the shear wall from the building above. We are in Seismic Class "D", so the building shear walls do impose the seismic shear load into the...
Table 12-2-1 Page 60 of the ASCE7-10 Standard, under "Building Frame Systems". Looking at "Steel Ordinary Concentrically Braced Frames", Seismic Design Category "D".
It lists "35" with an "j".
Footnote "j" explains that these frames can be used up to a height of 60 ft where the dead load of...
Can someone tell me what allowable capacities are used when determining the allowable capacity of C1020 Cold-Rolled Steel?
I know what the tensile strength and the ultimate strength mechanical property values are, but, is there a code book or some other reference that describes the safety...
I am looking at a document that shows a formula for calculating the compressive strength of a foundation. This document says "Compressive Strength per ACI 14-1" and the formula they use is: P=452(.25(3000)-24(.0066)] = 339 Kips
This is clearly not from ACI318 because chapter 14 is for walls...
Does anyone know if extensive load testing as been done on steel members that have been reinforced by bolting on reinforcing?
I am looking for actual testing reports & documentation that shows bolting on reinforcing works or doesn't work. Bolting on steel to existing steel members to build up...
I have a simple electric linear pull solinoid. The solinoid has a linear return spring on the plunger. The plunger has a "C" washer that is used as a spring stop so that the spring will compressed wheen the solinoid pulls it's distance.
I would like to replace the "C" washer with something that...
I was asked to duplicate the crimping exactly as shown in this picture:
http://www.product.info/images/crimppicture.jpg
They sent me a picture of this tool which is what did the crimping in the previous picture:
http://www.product.info/images/crimptool.jpg
This tool no longer exists. Can...
I have bee asked to duplicate the two crimps shown is this image:
http://www.product.info/images/crimppicture.jpg
The material is aluminum. The O.D. of the non-crimp portion is 0.224in. The I.D. of the non-crimped portion is 0.200 in.
The width of each of the crimps is about 0.25 in (1/4")...
Does anyone know of a reference or a spec. that describes the surface preparation that is required before the pour of the 2" composite topping on a double tee is made?
How can you tell if the composite topping de-bonds from the double tee?
Thanks for any help
I've noticed that some precasters use Inverted T's & Inverted L beams that are not standard PCI picks. For example 30IT40 & 30L42. In addtional they use a "secondary field pour" on top and place the threaded bars in this area for the moment connections. Is this acceptable?
Any help would be...
The edge distance from the edge of a pile to the edge of the pile cap is determined by the punching shear from the pile. I have a round augur cast pile that if it is placed on the exact edge of the pile cap on the two sides at the corner it will not create a problem with punching shear within...
We are designing slabs on metal deck for a 2nd floor office building. It will be composite construction - i.e. steel beams with shear studs on top.
Does it matter if normal weight concrete is used vs. light weight as long as the required concrete strength is achieved?
Other then the dead...
I need to use a steel plate to spread (distribute) the load from some new equipment on an existing floor slab. The reason for the plate is that each of the new pieces of equipment has different arrnagments of point loads.
Can someone recommend a good (and hopefully cheap) software program or...
Does anyone know if there is a reference that exists on how to approximate the equivalent uniform distributed loading on beams when there are concentrated loads on them. The uniform distributed load would provide the same or a bit more stress and deflection in the beams. I know there are many...
The question of lintel lateral bracing has come up. Some engineers are designing steel lintels assuming the block provides lateral bracing for the lintel (either top flange lateral bracing or torsional bracing) and some engineers assume fully unbraced along the span. We even have some guys who...
Does anyone know of a technical document and/or spec. that outlines & discusses expansion joints for exposed structural steel?
I've already read thread594-20505 from this site, however, this thread discusses BUILDING expansion joints and makes no reference to long, non-building steel...
We are adding on to an existing beam that now stops at the centerline and bearing on top of a column. After adding on to the beam we will be creating a cantilever and the beam will be continuous over the the top of the existing column when the work is finished.
The connection is a complete full...
