2018 International Existing Building Code – Structural – Accommodate Florida Specific Need 

Structural TAC

EB 31-16	(New) 403.8
[BS] 907.4
[BS] 907.4.2
	Adds new Section 403.8 “Substantial structural alteration”. Modifies text of Section [BS] 907.4 “Existing structural elements resisting lateral loads”, [BS] 907.4.2 “Substantial structural alteration”.  This proposal reconciles a significant difference between the Prescriptive method and the Work Area method. Currently, the Work Area method triggers a potential seismic upgrade for a Level 3 Alteration project whose intended scope includes a substantial alteration (as defined in 907.4.2). The Prescriptive method has no such trigger. This proposal adds the identical trigger to the prescriptive method.

Cost Impact: Will increase the cost of construction. 
For a major alteration with substantial structural alteration as part of its intended scope, the cost will increase as needed to do a seismic upgrade with reduced loads. The additional cost could be zero, or it could be more than zero.
	Same as change between 2015 IEBC and 2018 IEBC		
     TAC Action

x

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

X

 

     a.  b.  c.      d.  e.  f. 

Vote 10 Y – 0 N

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
TAC	
Cmsn.	

       No Action Needed 	

	

	

  Overlapping provisions     	

	

	

	

	
EB 38-16	[BS] 1007.3.1
[BS] 407.4

	Modifies [BS] 407.4 Seismic force-resisting system”, [BS] 1007.3.1 “Seismic force resisting system”. This proposal reconciles, clarifies, and simplifies the provisions for seismic upgrade triggered by a change of risk category, found in Section 407.4 in the Prescriptive method and Section 1007.3.1 in the Work Area method.

Cost Impact: Will not increase the cost of construction
By adding more exceptions to each method, the proposal will actually REDUCE the cost of construction.
	Same as change between 2015 IEBC and 2018 IEBC	No action needed
 Seismic provisions.

     TAC Action

X

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

X

 

     a.  b.  c.      d.  e.  f. 

Vote 10 Y – 0 N

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
TAC	
Cmsn.	

       No Action Needed 	

	

	

  Overlapping provisions     	

	

	

	

	
EB 6-15	301.1	Modifies text of Section 301.1 “General”. Adds new language in the exception changes Alteration to Alterations and the requirement to comply with Section 403.2 and 1401.3.3. 
The exception refers only to the work area method for alterations in flood hazard areas.   The prescriptive and performance methods have provisions similar to Section 701.3, so this exception should also refer to them.

Cost Impact: will not increase cost of construction because it adds alternatives for alterations in flood hazard areas.
	Same as change between 2015 IEBC and 2018 IEBC		
     TAC Action

X

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 X

X

     a.  b.  c.      d.  e.  f. 

Vote 10 Y – 0 N

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
TAC	
Cmsn.	

       No Action Needed 	

	

	

  Overlapping provisions     	

	

	

	

	
EB 7-16	301.1	Modifies text of 301.1 “General”. This proposal retains the exception that allows the code official to waive certain architectural and other requirements that the IEBC would normally trigger in alteration projects. It removes that exception, however, regarding structural provisions.  The current exception already does not apply to alterations in flood hazard areas (which sometimes trigger structural improvements) or to substantial structural alterations. So the proposal does not change those cases at all.  

Cost Impact: Will not increase the cost of construction
This proposal will not increase the cost of construction, but it could, hypothetically, limit the cases in which the code official could effectively reduce the cost of construction by waiving structural safety requirements. In practice, no increase in the cost of construction should be expected, however, since the proposal does not change any of the code's provisions, but only changes what was a discretionary waiver.

	Same as change between 2015 IEBC and 2018 IEBC		
     TAC Action

X

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 X

X

X

     a.  b.  c.      d.  e.  f. 

Vote 10 Y – 0 N

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
TAC	
Cmsn.	

       No Action Needed 	

	

	

  Overlapping provisions