Structures may be categorized as building structures or non-building structures. Seismic Evaluation and Retrofit of Multi-Unit Wood-Frame Buildings With Weak First Stories. WBDG is a gateway to up-to-date information on integrated ‘whole building’ design techniques and technologies. Since there is never a single “right” answer, the design team and code officials should work together to determine the appropriate level of seismic retrofit with the lowest visual impact on significant spaces, features, and finishes on both the interior and exterior of historic buildings. Huck, AIA, Restoration Architect, from the California Office of Historic Preservation, Nicholas Vann, AIA, State Historical Architect, Washington Department of Archaeology More Info to Charles Fisher, Brian Goeken, Anne Grimmer, Elizabeth Milnarik, and Gary Sachau, Technical Preservation Services, National Park Service, for their help in the final edits of the publication.
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Many historic buildings in earthquake zones have survived episodes of ground shaking and may even have undergone previous seismic reinforcement work. Washington, DC. Selecting a contractor with a proven record of successful historic rehabilitation work is extremely important. FEMA. Alterations to significant interior spaces such as lobbies, assembly spaces, and other character-defining spaces should likewise be avoided. It is also critical that the construction documents include details and specifications for the treatment of historic features and materials.
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The addition of steel moment frames, braced frames of various configurations, and concrete shear walls are typical methods for increasing the strength and stiffness of a building. A mezzanine was added to the original banking hall of this 1921 former bank building as a seismic strengthening measure. Material damage and degradation due to moisture, erosion, mold, or insect infestation are typical problems resulting from poor maintenance. When new structural elements must be added within significant interior spaces, the placement and location should avoid major alterations to the overall volume, distinctive architectural features, or finishes within the space, as well as to its character (Figures 13-15). In the case of an incremental rehabilitation, the scope and sequence of each phase must also be clearly detailed.
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Building Condition. For example, in order to resist the forces of an earthquake, a panel of cladding must be adequately connected to the floor, walls, frames, braces, and other structural members that connect it to the building’s visit homepage Disclaimer
See Preservation Briefs 1–50
1 Cleaning and Water-Repellent Treatments
2 Repointing Mortar Joints
3 Improving Energy Efficiency
4 Roofing
5 Adobe Buildings
6 Dangers of Abrasive Cleaning
7 Terra-Cotta
8 Aluminum and Vinyl Siding
9 Wooden Windows
10 Paint Problems
11 Storefronts
12 Structural Glass
13 Steel Windows
14 Exterior Additions
15 Concrete
16 Substitute Materials
17 Architectural Character
18 Rehabilitating Interiors
19 Wooden Shingle Roofs
20 Barns
21 Flat Plaster
22 Stucco
23 Ornamental Plaster
24 Heating, Ventilating, and Cooling
25 Signage
26 Log Buildings
27 Cast Iron
28 Painting Interiors
29 Slate Roofs
30 Clay Tile Roofs
31 Mothballing
32 Accessibility
33 Stained and Leaded Glass
34 Composition Ornament
35 Architectural Investigation
36 Cultural Landscapes
37 Lead-Paint Hazards
38 Removing Graffiti
39 Controlling Unwanted Moisture
40 Ceramic Tile
41 Seismic Rehabilitation
42 Cast Stone
43 Historic Structure Reports
44 Awnings
45 Wooden Porches
46 Gas Stations
47 Maintaining the Exterior
48 Preserving Grave Markers
49 Historic Decorative Metal Ceilings and Walls
50 Lightning Protection for Historic Structures
Some of the web versions of the Preservation Briefs differ somewhat from the printed versions. .