Business Occupancy w/ Assembly Space Handrails

[QuestionThat]

2015 IBC. In a Higher Ed (College) Business Occupancy a couple of classrooms have tiered seating. Classroom is designated assembly because 50+ occupants.
Wondering if there are any special code allowances related to the following for this type of space & if so, where do I find the exceptions
1. Guards required above finished floor.
2. Guardrail height exceptions
3. Railings at only one side of ramp
4. Railings at only one side of stair
5. Handrail extensions at top or bottom.
6. As far as handrail extensions go, if required, any reason why (as far as ADA specific requirement goes) that I need to have the additional 12" ADA extension at the bottom?

 

[RLGA]

1. Section 1015.2.
2. Section 1015.3, Exception 4.
3. Section 1029.15.
4. Section 1029.15.
5. Section 1029.15, Exception 3.
6. I'm assuming you're referring to ramps by the mentioning of a 12-inch extension (stairs only need to extend one tread depth). The 2010 ADA Standards, Section 206.2.4, Exception 2, does not require an accessible route to seating that has no wheelchair spaces; thus, no extensions per #5. If the ramp provides access to wheelchair spaces, then the ramp must comply with the requirements for an accessible route and must have extensions or use ADA Standards, Section 505.10, Exception 2, if the handrails are discontinuous for access to seating.

 

[fatboy]

1029 has answers for stepped aisles.

 

[QuestionThat]

Thanks Everyone!

 

[QuestionThat]

Getting close to where I need to be.
After looking around on line I'm seeing lot's of similar conditions that they have been able to eliminate handrails. I'm not finding anything in the code that would allow for this. Best I've been able to come up with is only requiring handrails on one side of stepped aisles

Can anyone point me to code that would allow for what these images are showing?
Max rise from platform to platform is 10" = 2 treads.
So to meet code requirements (no extensions required) and 11" treads, the handrails (if attached to treads) would only be 9" long +/-. Just doesn't seem right.....

 

[RLGA]

We can't see the images.

 

[QuestionThat]

Wondering about 1011.11 "handrails".
While doesn't specify aisles, in exception 2 it indicates that changes of 1 level only don't need handrails for walkways.
This would only help for one tier where have a 5" change in elevation (not 2 steps). however. Looking for way to eliminate for 2 steps.

 

[QuestionThat]

Missed your post regarding images.
First time posting images.....
Selected the "image Icon" and copied link from webpage. Any suggestions as to what to do?

 

[QuestionThat]

https://i.pinimg.com/736x/1b/f1/7a/1bf17a247d86278bc98dc18807c27a78.jpg
Test....

 

[RLGA]

Wondering about 1011.11 "handrails".
While doesn't specify aisles, in exception 2 it indicates that changes of 1 level only don't need handrails for walkways.
This would only help for one tier where have a 5" change in elevation (not 2 steps). however. Looking for way to eliminate for 2 steps.

Aisles in an assembly space are not "[d]ecks, patios, and walkways."

 

[QuestionThat]

What about 1029.15.1 "discontinuous handrails"
"Where there is seating on both sides of the aisle, the mid-aisle handrails shall be discontinuous with gaps or breaks at intervals not exceeding five rows....
If I only have 5 tiers and I elect to use a mid handrail, could this be interpreted to mean that I don't need a mid handrail at all for this situation?
..

got link working! Start here. Where does code allow for this center aisle with no handrails

 

[QuestionThat]

What about 1029.15.1 "discontinuous handrails"
"Where there is seating on both sides of the aisle, the mid-aisle handrails shall be discontinuous with gaps or breaks at intervals not exceeding five rows....
If I only have 5 tiers and I elect to use a mid handrail, could this be interpreted to mean that I don't need a mid handrail at all for this situation?

Forget this. See that I misunderstood.....