Accession Number:

ADA030762

Title:

Upgrading Basements for Combined Nuclear Weapons Effects: Expedient Options

Descriptive Note:

Technical rept.

Corporate Author:

STANFORD RESEARCH INST MENLO PARK CA FACILITIES AND HOUSING RESEARCH GROUP

Report Date:

1976-05-01

Pagination or Media Count:

161.0

Abstract:

This project concerned expedient upgrading of existing basements to provide some degree of protection against combined nuclear weapons effects, especially air blast such shelter would be for critical workers remaining in risk areas during a crisis period. In this report, expedient upgrading is that which can be accomplished within about a 24- to 48-hr warning period using indigenous labor and materials, and basements are those that have at most small portion of any side exposed to blast or -- in terms of a partially buried basement -- perhaps no more than the upper 30 or so of any walls exposed. Research, case studies, and this study clearly demonstrate a total lack of any correlation between floor design live load and mean blast collapse overpressure of a floor system. Important is the way the structure is put together and how the RC designer chose to detail the reinforcing steel. Thus for expedient blast upgrading, availability of a set of as-built drawings is very important for engineered upgrading, such a set is vital. With drawings available, some conclusions can be reached from engineering experience and existing structures evaluation techniques and ideas developed, to exploit any inherent blast resistance or to enhance it. General schemes for such strengthening are presented not to scale and one scheme includes an example in terms of blast resistance.

Subject Categories:

  • Structural Engineering and Building Technology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE