Chapter
Jun 21, 2023
Chapter 11
Ponding Instability and Existing Roofs
Publication: Snow Loads: Guide to the Snow Load Provisions of ASCE 7-22
Abstract
Section 7.11 of ASCE 7-22 requires a ponding analysis for susceptible low-sloped roofs, and roofs where water can be impounded. The designer must use the full roof snow load in the ponding instability analysis. Section 7.12 requires the designer of a new facility that will be adjacent to an existing lower-roof facility to either analyze and possibly reinforce the existing roof for the now-expected drift or sliding loads (if both facilities are part of the designer’s scope of work) or make the owner of the existing facility aware of the “new” loads (if the existing facility owner is not the client or if the existing facility is not in the scope of work). The roof-step problem for these situations is particularly difficult because of the cost and the complexity of reinforcing an existing roof.
Get full access to this article
View all available purchase options and get full access to this chapter.
Information & Authors
Information
Published In
Snow Loads: Guide to the Snow Load Provisions of ASCE 7-22
Pages: 117 - 120
Copyright
© 2023 American Society of Civil Engineers.
History
Published online: Jun 21, 2023
Permissions
Request permissions for this article.
ASCE Technical Topics:
- Building design
- Buildings
- Business management
- Design (by type)
- Engineering fundamentals
- Engineering mechanics
- Existing buildings
- Geomechanics
- Geotechnical engineering
- Load factors
- Organizations
- Owners
- Personnel (type)
- Personnel management
- Practice and Profession
- Professional societies
- Roofs
- Slopes
- Snow loads
- Static loads
- Statics (mechanics)
- Structural design
- Structural engineering
- Structural systems
- Structures (by type)
Authors
Affiliations
Michael O’Rourke, Ph.D.
P.E.
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.
View Options
Get Access
Access content
Please select your options to get access
Log in/Register
Log in via your institution (Shibboleth)
ASCE Members:
Please log in to see member pricing
Purchase
Save for later Item saved, go to cart Information on ASCE Library Cards
ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Get Access
Access content
Please select your options to get access
Log in/Register
Log in via your institution (Shibboleth)
ASCE Members:
Please log in to see member pricing
Purchase
Save for later Item saved, go to cart Information on ASCE Library Cards
ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.