Hello Everyone!

My name is Kassandra Moyer and I will be your grader for this term. I wanted to make a few comments regarding the first assignment. Although this assignment may have seemed easy, you must always review the rubric! If you ever have questions regarding the rubric, please reach out to Professor Mitchell and/or myself - my email address is km925@drexel.edu. Most of the points lost in this assignment were due to a major lack of detail. Also, I did not take points off for grammar mistakes, only if you had multiple spelling errors. However, ALWAYS double check all spelling and grammar. If English is not your first language, please have a friend review your work, or you may go to the Drexel Writing Center. Points will be deducted for poor grammar and spelling in the future assignments.

I am willing to answer any questions you may have regarding your grades, but please review your rubric before you email me. I made specific comments regarding what points you lost.

You have one week from today (4/11/16) to update your website with missing content and resubmit for a regrade. You may receive up to 2/3 of the points back as deemed appropriate. To resubmit, you simply email Professor Mitchell and myself with your website link AND an explanation of what sections of the assignment you changed or added. The entire website will be reviewed again and all sections considered in the regrade, however, it is important for us to specifically consider those sections which you changed in order to give you a fair regrade. Again, if you have any questions about regrading, please email Professor Mitchell and myself.

Good luck this term, and Happy Week 2!

Building Systems – Rules of Thumb

Site

• Site - to Consider
• Zoning
• Setback
• Parking Requirements
• Height limitations
• Relationship to other buildings
• Shading issues
• More in other countries than US at the moment

Architecture

• SF/ Person - 200-400
• Circulation % of building 15%-50%
• Exiting requirements
• 2 separate exit paths (protected) with 20' of exit from room or suite
• Floor to Floor
• 9' in apartments/hotels
• 12-14+ in commercial

Structure

• Depth of Beam in 1/12 of Length
• Ie. Depth in inches = Length in Ft
• This is conservative - often 2/3 to 3/4 of this
• Studio Companion is great Resource
• Design Loads
• Live Loads
• Gravity
• 40#/SF residential
• 80-100#/SF commercial
• 250#/SF+ for storage and other special conditions
• Snow - up to 30#/SF
• Dead Loads
• Self-weight
• Lateral Loads
• Live
• Wind - 90mph ~ 28#/SF
• Seismic
• Blast

HVAC

• Duct velocity - 800FPM to 3,000FPM
• Chiller Sizing - 200-400 SF/Ton
• Ventilations - 10-40 CFM/person - depending on activity
• Equest is great resource for first approximation
• Design Temperatures
• Indoor
• 72-78 DegF depending on age, season, culture
• Outdoor
• 14 DegF Winter
• 90 DegF Summer

Electrical

• Typical feeds (in Philadelphia) 13.2KV 3-phase
• Typical in-Bldg voltages
• 480/277 - motors and lights
• 208/120 - Convenience, portable appliances, some lights
• Emergency System
• Range from corridor lights only (2fc -> battery packs)
• 100% backup
• Duplicate feeds from separate substations
• Emergency Generator
• Depends on purpose of building, client desires
• Increasingly will see tied to alternative energy &/or electrical storage (batteries mostly)

Other Systems – Non-Exhaustive list

• Geotech
• Fire Protection
• Stormwater
• Lighting
• Circulation
• Transportation
• Plumbing
• Security
• Telecom

AE Rules-of-Thumb and Calculation Tools

The following may be of assistance in ROUGH approximations.

AE Rules of Thumb – Google Sheet with rules of thumb for several systems
AE Calcs Spreadsheet – Basic Calculations for several systems.

• Note that it’s part of the AE-Resources website – Which may have other useful tools
• It’s in the Excel group of AE Tools

Remember that these are only to give you a rough estimate.  They should never be used for actual design.

About This Blog

We'll use this blog to post announcements and answer questions that are raised throughout this term related to AE-390.  We advise you to subscribe to it via an RSS reader – I use Feedly.  That way you won't have to go into BbLearn to see any changes.  There are many many blogs available on interesting topics.  A good place to search for others that may interest you is Technorati.