Main Lobby Area (North Vestibule thru South Vestibule):

Transcription

1 Main Lobby Area (North Vestibule thru South Vestibule): Overview of Space: This is the entrance level from both the North, city street entrance, and the South, campus entrance. The space is 190 x 30 x 17 and runs from through the heart of the building. The main circulation check out desk is located on the west wall in the center of the lobby space. Existing Room Description: Floor: 3/8 epoxy terrazzo, krypton thin set Custom Colors: Light Grey, Dark Grey, & Light Blue Reflectance: 0.30 Walls: Gypsum Board, Harbour Blue Reflectance: 0.60 East and West Lobby walls (Northern and Southern most) Glazing walls Ceiling: North Vestibule: 2 x 6 Custom exterior snap in non-perforated metal panel system; Concealed spline South Vestibule: Gypsum board white painted ceiling; Flat finish Lobby Areas: 4 x 4 ; 1 thick fiber glass; 1/8 defined joint Concealed spline Reflectance: 0.80 Ceiling height: 17-0 Open to above in center Page 20 of 57

2 Furniture description and layout: There is a circulation check-out desk in the middle of the lobby area on the west wall. Information booths are located as you enter the lobby from the South and North entrances and a small self check-out desk is to the left of the circulation desk. Design Criteria: IES: Library Circulation Desk Very Important: Horizontal: 300 lux Reflected Glare, Source/Task/Eye Geometry Important: Appearance of Space and Luminaires, Color appearance and contrast, Direct Glare, Light Distribution on Surfaces and Task Plane (uniform), Modeling of Faces or Objects Lobby General Somewhat Important: Horizontal: 100 lux Important: Appearance of space and luminaires, Color appearance and color contrast, Daylighting integration and control, Direct glare, Light distribution on surfaces, Luminance of room surfaces, Modeling of faces or objects, and Points of interest Title 24: Lobby: allowable credit for decorative sconces Corridor: 0.6W/sqft Evaluation of Criteria: The main focus of this area is to comfortably allow users to enter and exit the building efficiently. The criteria for the general lobby does not greatly consider any factors. However, the appearance of the space, the points of interest in the space(circulation desks and entry area), and the people passing through the space must be modeled well in this area in order for the space to be useful. Page 21 of 57

3 Schematic Design: Replace existing compact fluorescents downlight with recessed strip T5 strip lighting. The focus of the lighting for this portion of the building is to draw people through the lobby into the library, to allow the circulation desks to be easily located, and to create a space that can be multifunctional. This lobby area can be used for receptions type events within the library. For the final design of the lobby of the library a more involved design will be used. This design needs to allow for the building geometry to be commented on by using triangular formed luminaires to reflect the day lighting element used heavily in the architecture of the building through the use of the atrium, windows, and light shafts. Page 22 of 57

4 Final Design: (35) American Glass Lighting Viewpoint Indirect/Direct Single Uplight fixtures with six 25 watt T-8 lamps (SS48) (12) American Glass Lighting Chieftan Sconce with two 21 watt T-5 lamps (1540-S) All lamps 3000K, 82 CRI LLF = 0.75 Allowed: 8790 sqft total 1.2 W/sqft as lobby= W 0.6 W/sqft as corridor= 5274 W Actual: 35fixtures x 6lamps x 25W = fixtures x 2lamps x 21W = 504 Total watts =5754 Watts/square foot =0.65 See Appendix: AutoCAD drawing for dimensions, fixture type, circuiting, and switching. Page 23 of 57

5 South (Campus) Entrance: Above: Looking toward the north entrance. Left: Looking at the circulation desk toward the South entrance Page 24 of 57

6 Conclusion: The purpose of the lighting concept was to in bringing the architecture of the large angular windows into the lobby space. The light levels are brighter at the Vestibule area to draw people into the library. The lobby has an overall intensity that can support small gatherings in the space. The circulation desks have been illuminated to allow for proper reading light levels. This space has successfully incorporated the design factors. Page 25 of 57