📐 What Makes Multi-Story Different
📐 ¿Por Qué los Edificios de Varios Pisos Son Diferentes?
Building Classification: Type I-A
Clasificación del Edificio: Tipo I-A
Green Manor is a Type I-A construction — the most fire-resistant building type under the California Building Code. All structural members (columns, beams, floor/roof assemblies) must achieve specific fire-resistance ratings measured in hours.
Green Manor es construcción Tipo I-A — el tipo de edificio más resistente al fuego bajo el Código de Construcción de California. Todos los elementos estructurales deben lograr clasificaciones de resistencia al fuego específicas medidas en horas.
| Element / Elemento | Type I-A Rating | Notes |
|---|
| Structural Frame | 3 Hours | Columns, beams supporting loads |
| Bearing Walls (Exterior) | 3 Hours | Enclosing the building |
| Bearing Walls (Interior) | 3 Hours | Load-bearing partitions |
| Floor Construction | 2 Hours | Including beams/joists |
| Roof Construction | 1½ Hours | Including beams/joists |
| Non-Bearing Interior Walls | 1 Hour | Partitions, corridors |
📋 Field Tip: On the Green Manor plans, wall type tags like FR-# indicate fire-rated walls. Always verify the detail reference on sheet I811 before patching or modifying any wall assembly.
High-Rise Threshold (CBC 403)
Umbral de Rascacielos (CBC 403)
A building is classified as a High-Rise when occupied floors are more than 55 feet above the lowest level of fire department access. Green Manor at 13 stories far exceeds this. CBC 403 imposes additional requirements on top of all other code chapters:
Un edificio se clasifica como rascacielos cuando los pisos ocupados están a más de 55 pies sobre el nivel más bajo de acceso de bomberos. Green Manor con 13 pisos supera esto con creces. CBC 403 impone requisitos adicionales sobre todos los demás capítulos del código:
- Automatic sprinkler system throughout (NFPA 13) with per-floor water-flow alarm
- Sistema de rociadores automáticos en todo el edificio (NFPA 13) con alarma de flujo de agua por piso
- Voice/alarm communication system on every floor
- Sistema de comunicación de voz/alarma en cada piso
- Standby power and emergency systems
- Energía de reserva y sistemas de emergencia
- Fire command center on ground floor
- Centro de comando de incendios en planta baja
- Pressurized stair enclosures for smoke control
- Cámaras de escaleras presurizadas para control de humo
- Sprayed Fire-Resistant Material (SFRM) on structural steel (CBC 403.2.4)
- Material resistente al fuego rociado (SFRM) en acero estructural (CBC 403.2.4)
Reading Stacked Floor Plans
Lectura de Plantas de Pisos Apilados
Unlike a single-story building, a high-rise set uses typical floor plans. One sheet may represent floors 2–12 with a note like "TYPICAL FLOOR PLAN - 2ND THROUGH 12TH FLOORS." Exceptions and deviations are called out individually.
A diferencia de un edificio de un piso, un conjunto de rascacielos usa plantas de piso típicas. Una hoja puede representar los pisos 2-12 con una nota como "PLANTA TÍPICA - 2° AL 12° PISO". Las excepciones se señalan individualmente.
Unit Stacking: Units directly above/below share the same footprint. Check structural grid lines to verify unit alignment. The column grid (labeled A, B, C… and 1, 2, 3…) stays constant floor-to-floor.
Unit Numbering: Green Manor uses a 3-digit system: first digit = floor (1xx = 1st floor, 2xx = 2nd floor, etc.). Units 101–110 are ground floor; 201–209 are 2nd floor, etc.
Elevator Cores & Vertical Transportation
Núcleos de Elevadores y Transporte Vertical
The elevator core is the structural and circulation spine of a high-rise. On Green Manor plans, the elevator machine room (EMR) is typically shown on the roof plan or 13th floor. Key elements to identify:
El núcleo del elevador es la columna vertebral estructural y de circulación de un rascacielos. En los planos de Green Manor, la sala de máquinas del elevador (EMR) se muestra típicamente en el plan de techo o piso 13. Elementos clave a identificar:
- Elevator pit — below grade, shown on foundation/basement plan
- Hoistway walls — fire-rated shaft enclosure (typically 2-hr rated)
- Machine room — EMR on abbreviation list, requires ventilation and clearances
- Lobby design — elevator lobbies require specific dimensions and fire ratings at each floor landing
- Foso del elevador — bajo nivel del suelo, mostrado en plan de cimentación
- Paredes del hueco — cerramiento de foso resistente al fuego (típicamente 2 horas)
- Sala de máquinas — EMR en lista de abreviaturas, requiere ventilación y distancias
- Diseño de vestíbulo — vestíbulos de elevadores requieren dimensiones específicas y clasificaciones de fuego
ASME A17.1 (Safety Code for Elevators) governs all elevator work. This is listed in Green Manor's applicable codes on Sheet A0.0.
Egress Stairs in High-Rise Buildings
Escaleras de Evacuación en Edificios de Gran Altura
Every stairwell must be a protected exit enclosure per CBC 1023. For high-rises, stairs must also be pressurized (smoke control system) to prevent smoke infiltration during evacuation. Key reading tips:
Cada caja de escaleras debe ser un cerramiento de salida protegido según CBC 1023. Para rascacielos, las escaleras también deben estar presurizadas para prevenir la infiltración de humo durante la evacuación.
| Feature | Code Ref | What to Look For on Plans |
|---|
| Min. Stair Width | CBC 1011.2 | 44" clear minimum; shown with dimension string |
| Enclosure Rating | CBC 1023.2 | Wall tag FR-# with 2-hr rating; see I811 detail |
| Door Rating | CBC 716 | Door schedule — look for 90-min label |
| Pressurization | CBC 403.4.6 | Mechanical drawings — stair pressure notes |
| Discharge Level | CBC 1028 | Exit discharge path shown on 1st floor plan |
| Stair Identification | CBC 1023.9 | Floor number signs, top/bottom identification |
Fire Ratings & Wall Types — Green Manor
Clasificaciones de Fuego y Tipos de Muros — Green Manor
Green Manor uses a lettered wall type system. The wall legend (Sheets A2.x) defines each type. All plans default to NR-1 (non-rated) unless tagged otherwise:
Green Manor usa un sistema de tipo de muro con letras. La leyenda de muros (Hojas A2.x) define cada tipo. Todos los planos tienen por defecto NR-1 (sin clasificación) a menos que se etiquete de otro modo:
| Tag | Type | Description |
|---|
FR-# | Fire-Rated | 1-hour rated stud wall; detail ref FR/I811 |
AC-# | Acoustical | STC-rated wall for unit separation; detail AC/I811 |
FW-# | Furred | Non-structural furring wall; detail FW/I811 |
LO-# | Low Wall | Partial-height wall; detail LO/I811 |
CA-# | Cavity Wall | Double stud with cavity; detail CA/I811 |
FH-# | Full Height | Floor-to-deck wall; detail FH/I811 |
NR-1 | Non-Rated | Standard partition (default all plans) |
⚡ Field Alert: When cutting or patching any wall on Green Manor, check the wall tag. FR walls require fire-rated joint compound, tape, and inspection before closing. NR walls do not.
Accessibility & Mobility Units (CBC 11B)
Accesibilidad y Unidades de Movilidad (CBC 11B)
Green Manor's scope specifically converts 15 units to Mobility Units per CBC Chapter 11B. These units require:
El alcance de Green Manor convierte específicamente 15 unidades a Unidades de Movilidad según el Capítulo 11B del CBC. Estas unidades requieren:
- 60" turning radius clear floor space in all rooms
- Roll-in shower or accessible tub with grab bars
- 32" min. clear door width (34" preferred)
- Lowered counters, accessible switches/outlets at 15"–48" AFF
- 6 units with additional communication features (101, 109, 110, 203, 206, 207) — visual doorbell, alerting systems
- Radio de giro de 60" en todos los cuartos
- Ducha con acceso o tina con barras de apoyo
- Ancho de puerta mínimo de 32" (34" preferido)
- Mostradores bajos, interruptores/enchufes accesibles a 15"–48" AFF
- 6 unidades con características de comunicación adicionales — timbre visual, sistemas de alerta
Units being converted: 101, 102, 103, 108, 109, 110 (1st floor) — 201 through 209 (2nd floor) — 13th floor restroom update — Laundry room floor drain (1st floor)
Reading the Sheet Index — Green Manor Set
Lectura del Índice de Hojas — Conjunto Green Manor
The plan set is organized by discipline prefix. Know these prefixes to navigate quickly:
El conjunto de planos está organizado por prefijo de disciplina. Conozca estos prefijos para navegar rápidamente:
A0.x
General
Cover, codes, abbreviations, notes
A1.x
Site
Site plan, fire access, parking
A2.x
Floor Plans
Typical & special floor plans, legends
A3.x
Elevations
Exterior & interior elevations
A4.x
Sections
Building & wall sections
A5.x
Details
Construction details, assemblies
A6.x
Schedules
Door, window, finish schedules
E-x
Electrical
Panel upgrades, circuiting
M/P-x
Mech/Plumb
HVAC, plumbing, floor drains
Symbol Reference — High-Rise Specific
Referencia de Símbolos — Específicos para Rascacielos
| Symbol / Abbrev. | Meaning | Found On |
|---|
| ELEV / EMR | Elevator / Elevator Machine Room | All floor plans, roof plan |
| STAIR / ↑ ↓ | Stair direction arrows (up/down per floor) | All floor plans |
| FDC | Fire Department Connection (Siamese) | Site plan, 1st floor plan |
| FSR | Fire Sprinkler Riser | 1st floor, mechanical room |
| FHVC | Fire Hose Valve Cabinet | Corridor plans each floor |
| FE / FEC | Fire Extinguisher / Cabinet | Corridor, common areas |
| ( E ) / ( N ) | Existing / New Work | All sheets — critical for TI |
| RCP | Reflected Ceiling Plan | A-series, ceiling sheets |
| AFF | Above Finished Floor | Dimension notes everywhere |
| CLR | Clear (dimension to open space) | Accessibility sections |
| UON | Unless Otherwise Noted | General notes, dimensions |
| TYP | Typical (applies to all similar) | Detail callouts |
| SIM | Similar (not identical) | Detail callouts |
Dimension Reading in Multi-Story Sets
Lectura de Dimensiones en Conjuntos de Varios Pisos
Green Manor uses three dimension styles per the legend:
Green Manor utiliza tres estilos de dimensión según la leyenda:
- Face of Stud to Face of Stud — structural framing dimension
- Face of Finish to Face of Finish — finish/clear dimension (what you see in the room)
- Code Minimum Clear — accessibility-required clearance; contractor adjusts finishes to meet
- Cara del montante a cara del montante — dimensión de estructura
- Cara del acabado a cara del acabado — dimensión de acabado/claro
- Mínimo libre del código — espacio libre requerido por accesibilidad
⚠️ NEVER scale drawings. The Green Manor notes state this explicitly: "Do not scale drawings. All dimensions shall take precedence over scale." Large-scale details override floor plans.
Scope of Work Summary — What You're Building
Resumen del Alcance del Trabajo
This is a Tenant Improvement (TI) — not new construction. You are working inside an existing occupied building. The scope includes:
Esta es una Mejora de Inquilinos (TI) — no es construcción nueva. Está trabajando dentro de un edificio existente ocupado. El alcance incluye:
- Replace finishes in all units and common areas (flooring, paint, cabinets)
- Upgrade electrical panels in all units and common areas
- Convert 15 units to CBC 11B Mobility Units (full accessibility remodel)
- 6 of those 15 units also get communication features
- Update 13th floor restroom to 11B compliance
- Add floor drain to 1st floor laundry room
- Reemplazar acabados en todas las unidades y áreas comunes
- Actualizar paneles eléctricos en todas las unidades y áreas comunes
- Convertir 15 unidades a Unidades de Movilidad CBC 11B
- 6 de esas 15 unidades también reciben características de comunicación
- Actualizar el baño del piso 13 al cumplimiento 11B
- Agregar desagüe de piso al cuarto de lavandería del 1er piso
TI vs. New Construction: On TI plans, look for (E) = existing and (N) = new. You must protect existing conditions, maintain occupancy in non-work areas, and coordinate phasing. These symbols appear throughout Green Manor's plans.