Monday 10/27 Plan–Structural Selection Process

We will review your submissions for the Structural Selection Process using the sub-group method we used for A2.

Preparation – A Single Slide Handout

• Each team prepare a single “slide” (something easy to project and to print) on their selection process
• Bring enough copies to distribute to the other teams in your group
• It’s OK to just have it a link from you webpage submission

Groupings

• A Teams 1-3
• B Teams 4-6
• C Teams 7-9
• D Teams 10-13

Focus of Review

• Clearest presentation of the Selection Method

Process

• Each group will review the work of all their teams – 10-15 min
• Discuss and pick the most interesting presentation of the Selection Method – 5 min

Class Presentation

• Chosen team from each group will present their selection process to the class – 3 min/team
• Each of these groups will receive extra credit points to make up any assignment deficit  - 2 points/group

A3 Grading Comments

All of you did well with this assignment,we were quite impressed with the level of detail that some of the groups went into. Most of the groups have been following our advice and meeting the criteria on the rubric and clearly labeling everything. Here are some general comments we had on issues that seemed common to many groups:

-Many of you seemed to do a lot of copy pasting for the numeric parameters. This is fine in the sense that you need to look up the data and we're fine with you presenting it in the same way that you found it. However, it is important to go the next step and comment on the numbers. We would like to see groups make an effort to explain what the numbers they found mean, how they relate to others systems, etc.

-Many of the issues this week seemed to come from a lack of organization. When groups lost points it was generally because there was some lack of communication or some point on the rubric was overlooked.

Overall the websites submitted this week were excellent, keep up the good work!

Best,
The Graders,
Tom and Steve

A3 Class Plan

Looking Ahead

At the conclusion of A3 on 10/20 I’ll ask each group to be ready with a 2 minute “Sales Presentation” about their system. 

• Think about what I mean by a “Sales Presentation” – how does it differ from a technical presentation.
• We’ll asky you to fote for extra credit points (2) using the following criteria
• Most Effective
• Most Technically Convincing
• Most humorous

 

Class Meeting – Wednesday 10/8

Looking at the system definition

• What is the definition for a structural system?
• What are the components for some of your systems?
• How do they “perform a specific function” for your system?

Materials

• What materials are necessary for your system in addition to any “main” material?

Numbers

• What kinds of numbers are important for most structural systems?
• A key goal of having numbers is to allow comparisons when making decisions about the appropriate structural system during design.

 

Class Meeting 10/15

• What numbers have you found
• Discussion of “Sales Presentation”
• Work session with interruptions for issues of general interest

Monday 10/6/2014 Class Plan–A2 Review + Start A3

The goals for class on Monday are to learn about as many of the buildings you analyzed as possible, and also to get started on A3, Structural System Variety.

Reviewing A2 Submissions

In three groups (see below) of your A2 teams you will look at and discuss a subset of the submissions, selecting one A2 team building group to present their building to the class. 

• The selected group will then use their website to present their building to the entire class with five minutes of presentation time.
• That group will get 2 extra-credit points added to their score by the grader, making up for any deficiency in the grade – up to 100% total
• The groups are:
• Teams 1-4
• Teams 5-8
• Teams 9-12
• The criteria to consider for selecting the team to present include:
• Clear presentation of the building on the website
• Excellent presentation of the engineering & architectural challenges of the building
• Timing

Task	Time
Each team reviews the website of the other three teams in their group	8 min
Each group of four teams discusses the buildings	8 min
Select one Team to present to the class	4 min
Selected Teams have 5 min to prepare their presentation	5 min
Selected Teams present to class (5 min present + 5 min Questions)	30 min

 

A3 Structural Variety Start

When we have completed the A2 review you’ll shift into your new teams for A3.  We will:

• Review the criteria for the assignment – being clear about the expectations
• Discuss some of the issues with identifying structural systems this way
• All need a foundation as well – identifying typical foundations for your system is important
• Many are not complete above ground – e.g. bearing walls need horizontal members in addition.  Identifying those additional components is important.

You will have the balance of the time to start actual work on the project.

A1a Revit Assignment Comments

Once again, most of you did quite well with this assignment. Some of you created very impressive buildings, and we could tell that you put quite a bit of effort into this assignment.

Some general comments and things many people seemed to miss:

• Make sure you follow the rubric! All of you can see the rubric we will be using to grade your assignments. If you cover everything in the rubric you will get a great grade. A few of you this week forgot to upload your Revit model or word doc, and we had to take off 30 points for each of those. In future assignments try to make sure that everything on the rubric is on your website in some way.
• As per Professor Mitchell's policy, we will accept resubmissions of assignments within a week of the time the you receive the grade. We would definitely recommend this for those of you that forgot to upload the Revit model, as resubmitting the assignment with the model attached will greatly improve your grade. 
• Within the actual assignment, most people neglected to dimension the wall corresponding to the number of letters in their name. If you had a Revit model we could go into and dimension we still gave you credit, but in the future it would be very helpful to call out these types of things that are on the rubric that we will be looking for in our grading. 

Overall, the submission were very good, and the buildings created were quite impressive. Keep up the good work with future assignments!

Cheers,

The graders,

T&S

eQuest–How To Get Started

In class today I started to demonstrate eQuest, but it wasn’t available.  I’ve been informed that it is now available on all the machines.

If you wish to explore it I recommend the following:

• The built-in help files – they’re quite good
• the eQuest Manual prepared by former student Ellen Peng.  It’s in the Resources folder available in the menu on the left.
• This is a bit more detailed than you need – you accept defaults for many of the choices she discusses.
• The essence of what you do is:
1. Build a model of your building in the Schematic Design Wizard
2. Run a simulation of that building using a year’s weather for a location you choose in the USA (choose a US location with a similar climate for other countries)
3. Look at the graphs of energy usage
4. Go back to the Schematic Design Wizard and look at the charts that have been built showing the size of the components.

A2 Rules of Thumb and Things to Consider

Here are some things you might want to consider in your analysis of your building

 

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
• Equest is great resource for first approximation

 

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

• What might they be?
• Fire Protection
• Stormwater
• Lighting
• Circulation
• Transportation
• Plumbing
• Security
• Telecom