Parkside 分館設施問卷調查

現代化的改進建議
Image of Parkside Branch Library
BACKGROUND
Year Built: 1951
Architect: Appleton & Wolfard
Seismic Hazard Rating 3
Number of Stories One
Type: Modern
Address: 1200 Taraval
Gross Sq. Ft.: 5,824

PRELIMINARY ASSESSMENT

The proposed modernization improvement plan is to renovate the interior of the building and seismically upgrade the structure. Seismic strengthening will include foundation improvements, new steel braced frames, a new concrete wall, plywood sheathing, glass replacement, new beams, and new anchors at the roof. The seismic work will trigger associated disabled access, code improvement, and environmental hazard mitigation work.

The construction will meet state (Title 24) and federal (Americans with Disabilities Act) guidelines. The access work for this library will consist of reconstructing an access ramp to the building, and making all public spaces, work areas, and amenities accessible. Existing restrooms will be renovated or relocated for accessibility. In addition, service counters and online catalog terminals will be made accessible. The anticipated building code impacts involve updating the building to comply with current life safety code requirements for exiting, heating, ventilation, plumbing electrical, lighting and other control systems.

Asbestos-containing materials (ACM's) such as plasterboard walls, pipe insulation, vinyl flooring, and roofing will need to be removed whenever impacted by the seismic, disabled access, or renovation work.

Significant impact on pipe insulation and flooring materials is expected from the installation of footings, chords and collectors, and shear walls. The removal of ACM's will require relocation of the building occupants to avoid potential health risks. Lead that is impacted will also be removed.

Modernization improvements involve the redesign and complete renovation of public spaces, staff work areas, and public amenities to better serve the modern needs of the library. The branch currently has a non-operational fireplace, the design of the interior should consider its possible removal or sealing. The chimney will be braced or removed. Other improvements include new flooring, new lighting, improved landscaping and irrigation and possible removal of fireplace. Work also includes upgrading or adding electrical/data outlets, and window replacement.

ASSESSMENT DETAIL



SEISMIC

  1. The existing reinforced concrete shear wall at Northeast corner does not have sufficient flexural capacity for lateral loads. The top of the shear wall is unbraced.
  2. The roof diaphragm lacks adequate shear transfer connection to wall. It also lacks adequate connections at collectors, and chords at re-entrant corners.
  3. The concrete wall is not properly braced for out-of-plane forces.

Non-Structural Deficiencies

  1. Suspended ceilings at corridors and exits are not adequately braced or separated from structural walls.
  2. Lay in ceiling tiles in exits and corridors are not secured with clips.
  3. Glazing is not isolated to accept predicted interstory drift without shattering.
  4. For fire suppression piping, risers are anchored or braced but without flexible couplings to allow for building drift and floor movement due to building configuration or seismic separation.
  5. Shut off devices are not provided at building utility interfaces for gas, in the event of earthquake induced failure.
  6. It is unclear if the exterior veneers are properly anchored.

PRELIMINARY RECOMMENDATIONS

  1. Install additional clips, nails, connector plates and bolts for load transfers at collector, chords and diaphragm to concrete wall connections to complete the load path.
  2. Provide collector and chord transfer connections at re-entrant corners of the roof.
  3. Install new bracing at top of the concrete shear wall at he Northeast corner of the building.
  4. Provide new channel at chord for the concrete shear wall at the Northeast corner of the building. Enlarge concrete wall footing as needed for the new chord.
  5. Install positive ties from the roof diaphragms’ vertical offset.
  6. Brace ceilings over public areas.
  7. Brace gas piping and fire suppression piping.
  8. Install shut-off devices for high-energy utility lines.
  9. Brace free- standing book stacks.

ACCESSIBILITY

  1. Current ramp does not meet accessibility code requirements.
  2. Entry and exit doors do not meet access requirements.
  3. Work areas are not accessible.
  4. Public restrooms are not accessible.
  5. Some public amenities are not accessible.

PRELIMINARY RECOMMENDATIONS

  1. Make site path of travel improvements, including reconstruction of existing ramp.
  2. Add exterior safety railings as required.
  3. Make all entries and exits fully accessible, including new hardware or door width modifications.
  4. Make all counters and work areas accessible.
  5. Reconfigure or relocate restrooms, and other public amenities to make them accessible.

MECHANICAL

  1. Boiler, Air Ducts and HVAC equipment were upgraded in the past two (2) years.

PRELIMINARY RECOMMENDATIONS

  1. None required.

ELECTRICAL

  1. Main electrical panel is in poor condition and will need to be replaced.
  2. Electrical power and distribution system will have to be replaced or upgraded.
  3. Lighting throughout the building is outdated and in need of replacement.
  4. Power and data line outlets are not sufficient to respond to a new flexible layout.

PRELIMINARY RECOMMENDATIONS

  1. Replace existing electrical panel and power distribution system.
  2. Replace lighting throughout the building with energy efficient lighting.
  3. Add power and data line outlets to conform with a new layout.

LIFE SAFETY/SECURITY

  1. It is expected that the introduction of a new electrical power panel and distribution system will necessitate the replacement of all life/safety electrical equipment such as emergency lighting, exit signs, smoke alarms, and smoke detectors.
  2. It is anticipated that the introduction of a new electrical distribution system will necessitate the replacement of all electrical security equipment such as security alarms and security lighting.
  3. Security grilles will be needed to prevent vandalism or theft.

PRELIMINARY RECOMMENDATIONS

  1. Replace or add emergency lighting, exit signs, smoke alarms, and smoke detectors.
  2. Add fire extinguishers and fire sprinkler system as required by code.
  3. Replace interior and exterior security lighting.
  4. Provide a central security alarm system.
  5. Provide security grilles consistent with the building’s design and character.

MATERIALS MITIGATION

  1. Asbestos Containing Materials (ACM’s) are identified in wall and ceiling sheetrock joint compound, baseboard glue, vinyl floor tiles and mastics, wall/floor mastic behind cork tiles, window caulking and glazing putty, built up roof, stucco, cement-asbestos board in floor.

PRELIMINARY RECOMMENDATIONS

  1. Where impacted by construction, abate asbestos in wall and ceiling sheetrock joint compound, baseboard glue, vinyl floor tiles and mastics, wall/floor mastic behind cork tiles, window caulking and glazing putty, built up roof, stucco, cement-asbestos board in floor.
  2. Abate asbestos if found in the hot water piping and fitting insulation.
  3. Lead that is impacted by construction shall also be abated.

MODERNIZATION

  1. Exterior finishes need repair but are generally in good condition.
  2. Windows do not operate to allow for natural cross ventilation.
  3. Lockers do not operate properly.
  4. Fireplace is not functional.

PRELIMINARY RECOMMENDATIONS

  1. Re-point exterior brick finishes, and repair exterior roofing fascia board.
  2. Redesign or modify exterior glazing to minimize vandalism and provide south-face shading.
  3. Make windows operable as necessary for proper natural ventilation.
  4. Make rear yard gate operable as an emergency exit.
  5. Replace floor, wall, and ceiling finishes as necessary to work with a new architectural layout.

LANDSCAPING

  1. Rec./Park land surrounds the Library, leading to potential jurisdictional maintenance issues.
  2. Vegetation and landscape improvements are in need of required maintenance.

PRELIMINARY RECOMMENDATIONS

  1. Provide a sprinkler system for Library vegetation.
  2. Improve existing landscaping.
Send comments or questions about this page to blip@sfpl.org
參加我們的調查