Looking for a formula to calculate heat transfer to water.
Specifically: water temperature 45 degrees F, plastic tank with 600 gallons of water, constant room temperature.
Would like to adjust the variables to determine time and temperature of the water.
Considering pretreating the water...
I am reviewing the following
Beam over HSS Column Connection Example 4.1
HOLLOW STRUCTURAL SECTION CONNECTIONS / AISC DESIGN GUIDE 24 (Based upon 2005 AISC Specification for Structural Steel Buildings)
I am comparing it to results from some new software (SCIA HSS design Tools Pack, developed...
Would like to discuss the validity of the following:
Reinforced concrete pier:
8-#4 bars (16 lf total) horizontal steel in 28"x28" footing
Footing is formed with plastic tube base that receives tube form. The tube base has holes in the top to help the concrete flow.
Tube form is a 12"...
I am looking to see if anyone has experience designing an all plywood beam without a top & bottom flange.
Beams (rafters) are for an eyebrow dormer.
I have downloaded "Design and Fabrication of All-Plywood Beams" from APA, as a design reference.
Beams will be shop fabricated, cut on a CNC...
General Information
Existing PEMB built over landfill (1980)
Previous repairs made to perimeter walls (compaction grouted) show negligible settlement.
Slab replaced 1995 (non-structural) has settled 6"+ in several locations.
Contractor has proposed pressure grouting to raise slab (with no...
Have a few questions regarding the use of rock anchors.
Gravity wall to be installed adjacent to and above rock cut. Owner wants to minimize footprint of wall. This creates more usable land/parking.
I would like to install vertical anchors to resist/reduce overturning and sliding.
My review...
T325 Roof Sheathing Fastening Schedules for Wind Uplift (Published by APA) Table 1
has the following footnote:
"When wind speed is 100 mph or greater, block panel edges perpendicular to gable-end-wall framing members in the first two bays of framing. Blocking shall be spaced a maximum of 4 feet...
Gravity retaining wall with key to resist sliding.
Looking for opinions regarding the extension of various lateral pressures on the backfill side of the wall to the bottom of the wall key vs. bottom of footing.
Thanks
My lineype is set as continuous in the Layer Properties Manager but shows as dashed when drawn.
When listed, the property is dashed for line type.
I can change the property of the line using DDMODIFY.
This happens to all layers no matter what linetype is designated in the Layer Properties...
I have a question regarding the application of seismic forces to earth retaining structures (gravity, cantilever, SRW etc.) used in non-building applications, commercial site application.
Building Code IBC 2006
Location: Northeast
Ss=0.232
S1=0.061
Specifically, should seismic forces be...
I would like support a ridge beam (wood) in a CMU pocket. The CMU is reinforced and is also the wall of a fireplace. This is new construction. CMU/Veneer is on an exterior gable wall; ceiling is vaulted, fireplace is 7' wide through roof. The support location is 12' above the firebox. Code...
This is a question regarding the lateral support of an interupted gable wall.
This is a residential design with a 7' wide fireplace/chimney extending above the roof.
The roof is a vaulted ceiling and the stone veneer is to be fully exposed.
The gable end walls also have windows, limiting...
I was looking for opinions regarding the support conditions for an underhung crane beam. Simply supported single span vs. continuous 2 span. (20 ft vs. 40 ft)
This would be with respect to alignment issues and unbraced length.
Thanks
looking to discuss design of HSS used as hanger for underhung crane rail support. HSS welded to plate; bolted connection to lower rail upper frame.
Thanks
