TM 5-809-6/AFM 88-3, Chap. 6
CHAPTER 9
SPECIALTY STRUCTURES
9-1. General
structures and construction refer to TM 5-809-2/AFM 88-3,
Chapter 2; MIL-HDBK-1025/6; and NAVFAC DM-11.1.
This chapter deals primarily with those types of specialty
structures which have potential application in military con-
9-4. Other structures
struction. Basic guidance regarding design of other types of
Other types of specialty structures include plate and shell
specialty structures which may have only limited ap-
structures, major arenas and stadiums, orbital space struc-
plicability to military projects is also provided.
tures, test stands, launch structures, carbon fiber composite
structures, etc. Design of structures of these types is highly
9-2. Blast-resistant construction
specialized and is beyond the scope of this manual. If
confronted with the need for structures such as these, the
Design of structures to resist the effects of accidental
agency providing the design will obtain relevant references
explosions will be in accordance with TM 5-1300/NAVFAC
and identify the appropriate specialty consultants to assist in
P-397/AFM 88-22. The reference is mandatory for explosive
the design.
safety design. Design of structures to resist the effects of
conventional weapons will be in accordance with TM 5-855-
9-5. Load-tested designs
1, and design of facilities to resist the effects of nuclear
In lieu of the design approach discussed above and when
weapons will be in accordance with TM 5-858-1, TM 5-
consistent with budget and schedule, load-tested designs may
858-2, TM 5-858-3, TM 5-858-4, TM 5-858-5 and TM 5-
be considered. This approach can be applicable to certain
858-8. The design of blast-resistant structures must consider
composite type structures or components such as those
the transient loadings and dynamic response of the structure
involving adhesive bonded elements, cellular foam, and
that results from the specified design event. Blast-resistant
newly developed materials. Toward that end, approved
design is often required in conjunction with the construction
research laboratories will perform load tests and submit a
of weapons system facilities, both developmental and
full report including all test data for review. Minimum safety
operational, as well as for structures designed to resist the
factors will be 2.5 with respect to ultimate strength or 1.65
effects of intentional attack.
with respect to yield strength of the material or system.
Information describing any new load-tested materials or
9-3. Corrosion-resistant structures
systems determined necessary, advantageous, and
Specialty structures are often required for use in extremely
economical will be submitted for approval to appropriate
corrosive areas such as in chemical processing plants,
headquarters.
plating rooms, demineralizing and water polishing areas, and
severe salt water environments. To attain the necessary
9-6. Miscellaneous structures
corrosion resistance, structures in such areas are frequently
Miscellaneous structures are those not listed elsewhere in
fabricated from nonmetallic materials including fiberglass
this manual or not covered by a specific code or specifica-
reinforced plastic, etc. When used, manufacturer*s literature
tion. Designs for these structures will be in accordance with
regarding the selected nonmetallic material will be carefully
related design codes, sound engineering practice and
reviewed and closely followed during design of the structure.
judgement, and relevant criteria based on the materials
For additional discussions regarding corrosion-resistant
involved and the predicted loading.
9-1
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