© 2008 Loos & Co., Inc.
Veiw our SHAKE TABLE
Loos & Co., Inc. has prepared AutoCAD details
of some of the many possible Seismic Wire Rope/Cable Bracing
configurations and details of connections to most structural elements.
AutoCAD users can use these details as they are or "explode" them,
so that they can be modified to adapt to varying configurations.
Loos & Co., Inc. has also prepared AutoLISP
programs for AutoCAD users to insert Seismic Wire Rope/Cable
Bracing information on their AutoCAD drawings. These programs
prompt the user for the brace location, direction ( Transverse,
Longitudinal or 4-Way ) and the locations of a brace I.D. number.
This information then appears on the drawing at the points designated.
Then the program prompts for the vertical brace distance, points
of structure connection, attachment type, weight/ft. and brace
spacing. The program then automatically calculates the brace angle,
length, size, and the size of the fastener and generates a
TABLE on the drawing that shows the quantity, size,
type, loads, fasteners, etc. for each brace ID number.
Load Table Spread Sheets
Loos & Co., Inc. has also prepared a spread sheet to do load
calculations and bracing sizing for a variety of equipment items.
There are 26 individual pages in the spread sheet. One page for
each of the following different types of equipment:
NFPA-13 Sch. 40 Sprinkler Pipe
NFPA-13 Sch. 10 Sprinkler Pipe
Rigid Steel Conduit (Heavy Wall Conduit)
Intermediate Metal Conduit (IMC)
Electrical Metal Tubing (EMT)-Thinwall Conduit
Rigid Aluminum Conduit
Uninsulated Sch. 40 Steel Pipe-Water Filled
Uninsulated Sch. 80 Steel Pipe-Water Filled
Service Weight Cast Iron Soil Pipe (Bell & Spigot
Extra Weight Cast Iron Soil Pipe (Bell & Spigot Type)
No-Hub Cast Iron Soil Pipe
Copper Tubing (Type L)
Copper Tubing (Type K)
Glass Pipe (Regular Schedule)
Glass Pipe (Heavy Schedule)
Sch. 40 PVC Plastic Pipe
Sch. 80 PVC Plastic Pipe
Sch. 40 Steel vapor Service Pipe (i.e., Gas)
Type L Copper Tubing Vapor Service (i.e., Gas)
Rectangular (and Flat Oval) Ducts
Trapeze Supported Equipment
Insulated Steel Pipe-Water Filled
Insulated Steel pipe-Steam
EACH PAGE shows
the following for each size (pipe size, conduit size, etc.): weight
per ft. and, in ten ft. increments from 10 ft. to 80 ft., the horizontal
load along side the cable brace size for 30, 45 and 60 degree brace
angles. The Horizontal Load Factor for earthquake bracing varies
according to the geographic area, type of equipment, Building Code,
etc. Changing the number for the Horizontal Load Factor at the top
of a page causes the loads and braces sizes to be recalculated in
the blink on an eye. The result is a load calculation/brace sizing
table that has been customized for a particular project and it can
be printed out for submittal.
This spread sheet is available FREE for Download or ON LINE, where
the results can be printed out on your printer while on line.
NFPA-13 CALCULATION FORM
Seismic Bracing Calculations ON LINE using the NFPA-13 Calculation
Form. In minutes you will enter project and calculation criteria
in 4 easy steps. The result is a completed NFPA-13 Seismic Bracing
Calculation Form that you can print out on your printer while you
are on line.
1 second SPECTRAL RESPONSE ACCELERATION
Qualification for General Exemption from the anchorage and sway
bracing requirements of the 2000, 2003 & 2006 IBC International
Building Code, ASCE-7 and the NEHRP (FEMA) Standard, based on the
Seismic Design Category of the structure, is dependent on both 0.2
sec and 1 second Spectral Response Acceleration criteria. The 0.2
sec Spectral Response Acceleration map is included with the Loos
& Co., Inc. Manual of Code Compliance
Guidelines, which also includes detailed calculation instructions
on pages 2-31 through 2-32b. The 1 second map is available for use
on this web site buy signing in below. The AutoCAD® DWF Viewer®
plugin is required to view this map. If you do not have the DWF
Viewer® plugin installed on your browser, bookmark this page,
download the DWF Viewer® plugin from AutoDesk®,
follow their instructions to install the plugin, restart your browser,
return to this page and sign in below.
FREE DOWNLOAD FILES
ON LINE CALCULATIONS
For Access to FREE Download Files and On Line Calculations,
Sign In Here.
Loos & Company, Inc.
901 Industrial Blvd.
Naples, FL 34104