Table R4041.2(1) is new to code and requires one #4 bar top and middle of 8 ft high concrete basement walls.
I am reviewing a homeowners claim against the builder that this was not done for his new home construction. Does anyone have a theory on what this reinforcing does for the wall? It is...
Has anyone had experience with using Hycrete as the only waterproofing component of a wall and slab several feet below the water table? Did it perform? Do you know the cost difference? Any other problems?
Does anyone have experience with these companies. The architect wants to use prefab. aluminum cable and ledger supported.These are going on all sides of a 5 story wood framed condo. My main concern is connection to wood framing. Typically this is going to come back to me. Connecting steel to...
we have a new building a story high than adjacent. Architect wants me to design a sloped roof in the shape of the drift on the existing roof to eliminate snow drift.
I have always believed this was not a real solution, but others have gotten away with it. I believe the drift still exists and...
I have several column base plates on a five story building that were slotted in the field to hit misaligned anchor bolts. the columns are on grouted leveling plates. Holes are inward from face of concrete pier by about 1 inch on all four bolts.
Steel fabricator want to weld plates over hole...
I am designing a 4 story wood apartment building with some LVL posts with loads approaching 20K.
I have asked that all posts be on continuous LVL material, ie no interuption from plates or plywood flooring. The wall panel supplier has questioned this. Am I being unreasonable or is crushing a...
Do any of you oldtimers know the drafting convention for wrought iron beams? I'm from the WF era myself and never came across wrought iron in a building(circa 1887) until now.
My guess is like 12WI40.5, but what is (or was) correct??
Maybe a newbie can answer??
I have a four story wood apartment building using 18" deep prefab floor trusses. In half of the building the interior bearing walls will also be shear walls with the trusses bearing from each side. I was thinking of putting a 1" rim board in between the trusses to act as blocking and shear...
I have been looking at an old pre-engineered building with a logo on the exterior end wall ridge of RB.
Does anyone know who this is? At least 30 years old or more.
I would like to find out the live load capacity of the roof. Can anyone recommend an approach? It has the tapered, sectional...
I have a situation where a roof deck (100 psf LL) is being added above a 40' span of open web steel roof joist. To get additional load capacity our plan is to add a center support to the joist to increase load capacity. The center will be modified to provide for "end" bearing. All diagonals and...
Does anyone have any information or know where I can get some on probable construction costs for the premium to perform cold weather concrete, interior finish, and exterior masonry work?
Does anyone have any references for determining the height that roof top equipment or a penthouse has to be above the roof( up on posts with a space below) to prevent any additional load from snow drift.
Our best guess here in the Boston area is one foot, but I would like to confirm this.
I am performing a seismic evaluation per ASCE 31-03 for a US gov't agency of a 1983 steel moment frame 2 sty building with open web steel joists and girders as the resisting beam in the moment frames columns are tubes.
The literature supporting this evaluation does not discuss open web steel...
This is a followup to a previous post a couple of months ago. The problem is to enlarge existing footings in place to support the addition of two new floors without underpinning (due to spacial constraints).
After running numbers on punching shear the existing footings fail under the increased...
Has anyone enlarged an existing concrete spread footing by doweling reinforcing into the sides and pouring a larger footing around the 4 edges of the existing? (adding floors to existing building)
Not my idea, I would like to remove the existing and build a new footing. The builder suggested...
Has anyone enlarged an existing concrete spread footing by doweling reinforcing into the sides and pouring a larger footing around the 4 edges of the existing? (adding floors to existing building)
Not my idea, I would like to remove the existing and build a new footing. The builder suggested...
What is the required standard of care for the structural design of filigree slabs. Who is repsonsible for the total design and who designs what between the structural engineer of record and the precaster? Who determines and locates styrafoam voids?
What software is being used to analyze the...
My Architect wants to frame condo balconies with steel channels (balcony about 4'x8') The floor is wood truss joists parallel to the balcony cantilever.
Has anyone done this before? Any tips?
The wood truss is most likely 18" deep 2x4, an "I" truss could also be used.
There is no published...
I'm researching the new construction of a mezzanine slab (100,000 sf) that will carry a fork truck in the range of 5-6K pounds total weight. Pallet weight is about 2000#.
The structure is steel with composite metal deck. There is a real concern to prevent slab cracking since fork truck wheels...
I have a case where the architect wants to bear 40ft span open web steel joist flat roof on a metal stud wall. Does anyone know where I can go for design guidance on the metal stud wall. I can tighten up the joist spacing to reduce the point load. at 3' spacing 3K point load to wall.
Or is this...
