A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Damage Functions for Upgraded Shelters
The probability of survival is predicted of people located in conventional, expediently upgraded basements when subjected to the blast effects produced by the detonation of a 1-MT weapon near the ground surface. Two categories of potential shelters are considered here, i.e., engineered buildings and single-family residences. The first category included 12 basements designed for live loads in the range from 50 psf to 250 psf and slab spans from 12 ft to 20 ft. Each of these was analyzed as expediently upgraded using four different upgrading schemes. An expedient upgrading scheme involves strengthening the slab over the basement by providing intermediate supports and blocking off all openings into the basement. This resulted in 60 shelters of different strengths which include the conventional, unupgraded slabs as base cases. The second category included four conventional single-family dwellings with full basements. Each was evaluated when upgraded using a studwall upgrading concept. Two of the basements were reevaluated using the post and beam upgrading concept. These upgrading concepts are essentially similar and were used as intermediate supports for strengthening the joist floor systems. A probability of survival function was developed for each shelter and each upgrading scheme. The report includes a description of the shelters analyzed, a description of the method used in performing the analysis, detailed results, conclusions and recommendations.
Damage Functions for Upgraded Shelters
The probability of survival is predicted of people located in conventional, expediently upgraded basements when subjected to the blast effects produced by the detonation of a 1-MT weapon near the ground surface. Two categories of potential shelters are considered here, i.e., engineered buildings and single-family residences. The first category included 12 basements designed for live loads in the range from 50 psf to 250 psf and slab spans from 12 ft to 20 ft. Each of these was analyzed as expediently upgraded using four different upgrading schemes. An expedient upgrading scheme involves strengthening the slab over the basement by providing intermediate supports and blocking off all openings into the basement. This resulted in 60 shelters of different strengths which include the conventional, unupgraded slabs as base cases. The second category included four conventional single-family dwellings with full basements. Each was evaluated when upgraded using a studwall upgrading concept. Two of the basements were reevaluated using the post and beam upgrading concept. These upgrading concepts are essentially similar and were used as intermediate supports for strengthening the joist floor systems. A probability of survival function was developed for each shelter and each upgrading scheme. The report includes a description of the shelters analyzed, a description of the method used in performing the analysis, detailed results, conclusions and recommendations.
Damage Functions for Upgraded Shelters
A. Longinow (author) / M. Y. Wu (author) / J. Mohammadi (author)
1982
251 pages
Report
No indication
English