Design Development Code analysis Partition types

Identify the relevant codes  Local building code  Local accessibility code (or ADA)  Local fire code (or the NFPA)  Mechanical, electrical and plumbing codes  Local Zoning Bylaws

780 CMR, The MA Building Code Look at the table of contents Chapter 4: SPECIAL USE AND OCCUPANCY  Chapter 6: TYPES OF CONSTRUCTION  Chapter 8: INTERIOR FINISHES  Chapter 9: FIRE PROTECTION SYSTEMS  Chapter 10: MEANS OF EGRESS  Chapter 11: ACCESSIBILITY  Chapter 12: INTERIOR ENVIRONMENT  Chapter 13: ENERGY CONSERVATION  Chapter 34 REPAIR… AND CHANGE OF USE OF EXISTING STRUCTURES

Building Code Analysis 1. Gather general building data (construction Type, Use Group, etc.) 2. Calculate occupancy load based on Specific Use 1. Plan with shaded areas 2. Chart with calculations 3. Analyze egress system 1. Calculate capacity of corridors, doors, and stairs 2. Life Safety Diagram (Max. length of egress travel, separation of exits, fire rated partitions) 3. Compartmentalization diagram

Step 1: Gather general data What is the “Use Group” of the building (Museum) and this project (A3)? What is the building “Construction Type” (IIIB - unprotected)? Will project be sprinklered throughout (yes)? What are partition and floor ratings?

General Data Example

Miscellaneous definitions

Step 2: Calculate occupancy  Use chart in code for Specific Occupancy Areas (fig ) to assign rooms  Use Color Scheme for Occupancy – plan will color in  Sometimes need to adjust for circulation (subtract 35% from total), actual use Chart in Revit is APPROXIMATE, but OK for us For real life, study exact areas  Place Occupant load in chart to calculate

Occupancy plan

Use a key for specific uses

Other information can be shown

OCCUPANCY ANALYSIS LEVEL 2 LEVEL 1

Use spreadsheet: For detailed analysis, add line for each room; for THIS project, just use total from Revit, adjusted for circulation Results for egress components Check codes!

Life Safety Diagram Maximum length of egress travel: 120’ (250’ allowed) Actual separation of exits: 149’ (102’ min. allowed – 1/3 diagonal) 2-hour partition 1-hour partition

LEVEL 2

COMPARTMENTALIZATION DIAGRAM PREVIOUS CIRCULATION DIAGRAMS FROM FRONT FROM BACK

521 CMR, the MA Accessibility code Look at the table of contents:  our building type is….  Section 25: Entrances  Section 26: Doors and doorways  Section 27: Stairs  Section 28: Elevators  Section 29: Floor surfaces  Section 30: Public toilet rooms  Section 32: Kitchens  Section 34: Storage

Interior Partition Construction

Interior Partitions Common structural materials: Steel studs (commercial) Wood studs (residential) Concrete masonry units (CMU) Poured in place concrete Common facing materials: Gypsum board Plaster Glass-reinforced gypsum (GRG)

Steel Studs

Steel Stud Chase

Steel Studs

Wood Studs

CMU with Chase and Steel Stud Partition

CMU with Metal Hat Channel Furring

Poured in Place Concrete with Metal at Channel Furring

Common Partition Facing Materials Gypsum board Plaster Glass-reinforced gypsum (GRG)

Gypsum Board

Plaster

GRG (Glass-Reinforced Gypsum)

Partition Types: choose/create each one Show floor and ceiling condition in section Indicate all materials with lines/hatching and notes Typical options for different interior partition types: –Wood vs. metal –1-hour fire rated vs. 2-hour fire rated vs. non-rated –Dry vs. wet location –High impact resistance vs. standard –Degree of acoustical isolation –Finish systems

Metal non-rated walls

Rated construction

Shaft Walls

What about sound?

Sound isolating wall construction