I am designing a pile foundation for a new building based on information provided by the geotechnical engineer for the project. The pile foundation is required due to the high probability of liquefaction of the underlying soil during a seismic event. The pile system proposed consists of 8"...
I have a project that is a remodel of an existing one-story masonry building with wood rafter roof framing. The building is located in seismic design category D region. The existing masonry walls have horizontal reinforcing consisting of ladder joint reinforcing only and vertical rebar spacing...
I have designed several roof structures that are open canopies (no walls) near property lines. Every jurisdiction seems to have a different interpretation of fire rating requirements for these structures. Does anybody have any code sections or ideas on if fire rating is required, fire...
I have been using the newer version of Enercalc (version 6) for a variety of designs. I noticed when using the masonry wall design module that some of the results didn't look correct. The axial stress and calculated deflections look much higher than calculated using rough hand calcs. Has...
I am having trouble in the design of a cantilevered masonry column system. These systems seem to be pretty typical for support of entry canopies or even larger canopy systems (I am picturing bank drive throughs). The basic system is a light roof deck (metal deck or plywood) with light framing...
Many building departments are switching to electronic plan review programs to reduce paper and hopefully to make the review process more efficient. My question is how this works with requirements for orginal stamps on the construction drawings. How are design professionals insuring that their...
I have an exterior concrete wall that is specified to have a waterproofing admixture in the mix design. The contractor built a mock wall and with the air entrainment added they can't get a finish that the owner will accept. Does anyone know of an alternate method of waterproofing (either with...
I am engineering the anchorage of pre-manufactured steel columns to concrete slab/footings under the 2006 IBC. The reference to ACI 318-05 Appendix D notes that under moderate or higher seismic areas the steel failure must govern design. For uplift resistance I am having trouble meeting the...
I am engineering the anchorage of pre-manufactured steel columns to concrete slab/footings under the 2006 IBC. The reference to ACI 318-05 Appendix D notes that under moderate or higher seismic areas the steel failure must govern design. For uplift resistance I am having trouble meeting the...
I am engineering a foundation design for a pre-manufactured metal building. I have received reactions from the metal building company. The maximum reactions they have listed for uplift are for seismic combinations that include an overstrength factor of 3 multilplied by the uplift caused by a...
