ARCH 465 Fire Safety
Reading due week 11, Nov. 6, 2006
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Read Chapter 10, Sections 1002 - 1010, 1014 - 1019, IBC. Skim the other sections. Answer the following questions:
1. Section 1002:
- what is an "area of refuge?"
- based on the definition of "common path of egress travel," first draw a plan diagram of a rectangular floor with a corridor connecting two egress stairs, and with rooms on both sides of the corridor; then indicate a point on the plan for which a common path of egress travel exists. Indicate the extent of the common path of egress travel.
- based on the definition of "corridor," exit," and "exit access," does a floor that is occupied require a corridor leading to an exit? Does such a floor require an exit access and and exit?
- what is the difference between a "guard" rail and a "handrail?"
- is a "corridor" a part of a "means of egress?"
- what is a "winder?"
2. Section 1003:
- based on sec. 1003.3.3, is a display in an egress corridor, such as can be found in in E.Sibley on 10/31/06, in compliance with the code?
- is a single step ever permitted in an accessible means of egress for a group B occupancy? Why do you think such situations are generally prohibited?
- based on 1003.6 (also see 1019.3), is the egress stair in the Fine Arts Library that connects the third floor stacks to the second-floor entrance of the library in compliance with the IBC?
- what is the only exception to the rule prohibiting the use of elevators as parts of a means of egress?
3. Section 1004:
- can the occupant load be increased beyond the number given in Table 1004.1.1? If allowed, what must be done to remain in compliance with the code?
- When computing the requirements for an exit stair above grade, do you count only the occupants on the floor in question, or all occupants at or above that floor?
4. Section 1005:
- based only on Table 1005.1, compute the minimum required width of a stair and corridor in a sprinklered office building with 1000 occupants per floor, split between four stairs and a single corridor.
- is a 3-foot door allowed to swing into a required 5-foot wide corridor?
5. Section 1006:
- What is the minimum illumination level normally required for means of egress?
6. Section 1007:
- what are the 8 types of accessible means of egress components and what sections of the IBC are referenced for each?
7. Section 1008:
- what are the basic minimum clear opening width and maximum width of means of egress doors?
32" and 48" respectively
8. Section 1009:
- what is the basic minimum width of a stairway?
44"
b) what are the minimum and maximum tread and riser dimensions for an egress stair (don't consider the exceptions here)?
9. Section 1010:
- what is the basic maximum slope for a ramp in a means of egress?
10. Section 1014:
- what is the maximum common path of travel, other than for H occupancies, and not counting the exceptions listed?
11. Section 1015:
- based on Table 1015.1, what is the number of occupants that triggers the requirement for 2 exits or exit access doorways in Group A and B occupancies?
12. Section 1016:
- based on sec. 1016.1 and Table 1016.1, can an office occupancy (Group B) in an unsprinklered building have two exit stairs 300 feet apart at either end of a corridor if the maximum distance from any point in any room to the corridor is 45 feet?
13. Section 1017:
- What are the minimum corridor widths and corresponding occupancies listed as exceptions to the basic 44" rule?
14. Sections 1018-1019:
- based on Table 1004.1.1 and Table 1019.1, how big an area (sq.ft.) must a Group B floor have in order to trigger the requirement for 3 exits?
The new edition of the International Building Code is now online. Follow these steps to gain access (Cornell netID required):
- Go to the Cornell Library Catalog and type MADCAD in the search field, set for "title."
- Click on the link, "Connect to full text" under electronic access.
- Click on the button to login to madcad.
- Click on IBC 2006 at the top of the left-hand menu bar, and then immediately below on "contents."
- From this point, you're on your own...
Last Updated: 31 October 2006
© 2006 J. Ochshorn. All rights reserved.
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