KARLA RIVERA SELECTED WORKS
CONTENTS
MAGNOLIA ELEMENTARY SCHOOL Junction Between Indoors & Outdoors 04
URBAN DESIGN Pedestrians on the Waterfront 10
SOCIALLY DISTANCED PARKLET Fluidity in Motion
16
FIRE STATION NO.10 Integrating with Nature
18
FIRE STATION NO.10 Integrating with Nature
24
MAGNOLIA ELEMENTARY SCHOOL Location: Arlington, Virginia Team Project - 3 Members Advisor: Robin Puttock
A SCHOOL OF JUNCTIONS BETWEEN THE INDOORS AND OUTDOORS TO ENHANCE THE LEARNING AND THE COMMUNITY This program is meant to replace Claremont Immersion Elementary School with a new building (123,000 sf) to accommodate 700 students. Designed to serve grades pre-K through 5th in Arlington, Virginia, the new Magnolia Elementary School will become a celebrated junction for students and community members to enjoy year-round. The building form is created from two rectangular volumes. The primary form, a 475’ long four-story volume, serves both administration and students. Each classroom is an L shaped form with an outdoor teaching balcony. It creates allow diverse collaboration options for students such as work on a lab indoors and then testing it on the balcony. In these classrooms, students work in a comfortable environment with beautiful exposed cross-laminated timber, northern daylight, and views of the Magnolia Bog.
LOCATION OF WATER THAT CREATED THE BOG
FUNCTION Extended learning and special program Classrooms and Administration 4
LOCATION OF PROJECT: ARLINGTON COUNTY, VA
VICINITY ANALYSIS
SITE ANALYSIS
SITE PLAN
5
FLEXIBLE Classrooms
Biophilia The textures and colors of exposed CLT connect students to nature
Captured Carbon in the Classroom The CO2 captured in the CLT used to build one classroom is 4.4 tons. This is equivalent to four and a half 40 year old trees
Mechanical Room Education Students can look in the window and see the heat pump used to cool and heat their classroom.
4.4 tons of = CO2 captured
CO2 of 4 1/2 40yr old trees Glazing on interior classroom walls
Indoor/Outdoor Group Lab Students collaborate and make projects that are then tested out on the balcony
Illuminates the hallways with natural daylighting Junction between Classrooms and the Magnolia Bog
Windows from every two adjacent classrooms look across the teaching balconies. Students are always paired with another classroom and can see what other students are learning. They also can see the Magnolia Bog from their classroom
Indoor/Outdoor Stations Students rotate to stations both indoors and outdoors during class time
Vie
ws
Operable Windows A button showing temperature and humidity helps students learn when to open windows for their thermal comfort
A JUNCTION for WELLNESS
Classroom Flexibility Plumbing is roughed in for future flexibility. Toilets and sinks can be added to meet the future needs of the school or be used for storage or small learning space.
Indoor/Outdoor Reading For reading times students can choose between indoor and outdoor areas
Acoustics Perforated Wood acoustical panels create acoustical comfort in the school
Biophilia Occupants move through the Junction they have a visual connection to nature as they view the different colors and textures of CLT
Biophilia Students and faculty can see and touch the wall created from the earth on site
Optimal daylighting in classrooms
rough their
Movement veling th n enjoy tra Students ca ain tracks school on tr
6
Movement Vertical movement is encouraged by giving students and faculty the option to take the stairs up and around the beautiful rammed earth
The Magnolia Elementary School is located above four rock layers. Each floor of the represents one of the layers and creates a junction between the Earth and built environment. This educational stair teaches kids about each layer and learn that the Magnolia Bog is located above the sedimentary sand layer.
Building EUI with PVs
14 Sefaira Sketchup Plugin
PV Array Size: 350.9kW per panel. 1,210 Standard panels on the roof and gym generate 497,402 kWh/year. Which significantly offsets our building’s energy usage by half. Typical EUI for Arlington Elementary Schools EUI of Magnolia Elementary School with
62 14 Data from Arlington Public Schools
Flexibility: Classrooms follow the same module, it is easy to change second-grade classrooms into pre-K by installing toilets. The L-shaped classrooms create a space with flexible indoor and outdoor uses. Learning: The outdoor solar classroom teaches students about energy generation through PVs and water heating through solar hot water panels. Carbon Emission Reduction Strategies: Embodied carbon was reduced by placing the building in the existing location of the old school, minimizing land disturbance and the building footprint with a 4 story building, and using CLT structure, and planting 65 additional trees on site. Resilience: The Gym is located adjacent to the loading dock, near the bathrooms and cafeteria in case of emergency. Energy generators are provided and located on the adjacent mechanical room to operate the gym in case of a power outage. Mechanical System: Centralized location of mechanical room. Ground source heat pumps are supplied by geothermal wells and are shared among the classrooms. DOAS is located on 3rd floor rather than roof to allow more real estate for the PV array. Water: Bathrooms are stacked directly above cisterns located in the basement. Harvested rainwater is used for flushing low-flow toilets and irrigating the garden. Sinks and showers throughout the school are also low flow to help water conservation.
70 Geothermal Wells 400 ft deep 24ft O.C. Located in the soccer field
Cistern Capacity:
Toilet Water:
Number of Cisterns:
152,212 Gallons
Greywater
100%
8 Sized: 8.5’ x 8.5’ x 12’
7
The solar teaching kitchen serves as an outdoor JUNCTION for community engagement
Using the food grown in the garden, teachers can give cooking demonstrations to the class
62
8
MATERIALS
CLT Structure • •
Collects and stores carbon. Simple and fast on-site construction
Sirewall ® • • •
Weathered Steel Panels
Utilizing available local • earth materials Materials are nontoxic and promote • healthy living. Requires minimal maintainance. •
Originally was developed for railcars, later it became a widely used architectural metal. Corten steel has longterm endurance in exterior conditions. Instead of corroding away, an oxidized layer becomes a protective layer.
Reclaimed Red Cedar •
• • •
Cedar comes naturally insect and moisture resistant which gives it a longer lifespan. Lightweight, easy to transport. Produced on east coast reducing transportation. Recyclable.
PV panels power outlets in teaching kitchen Solar water panels heat water used in the kitchen
After biking along Four Mile Run Trail to the Magnolia School kitchen, a young family enjoys a picnic under the thermally comfortable shaded picnic table area.
After a soccer game, 8 year old Michael goes with his team to eat a snack
Mrs. Smith walks from her home to tend to plants in the garden
Plants are tended by both students and the local community. Cistern water is used for the vegetable garden.
9
BUZZARD’S POINT Location: Buzzard’s Point,- Washington, DC Team Project - 4 Members Advisor: Ana Romann-Andrino
PEDESTRIANS ON THE WATERFRONT Buzzards Point is located along the Navy Yard area currently hosting two major stadiums. This calls for a renovation and urbanization of the site to bring more people to live, work, and be entertained. The main concept of our design was to attract people to the waterfront. Buildings were located in the center core of the site leaving openness along the waterfront edge thus creating a sense of backyard for its inhabitants.
ACTIVITIES DIAGRAM 10
PEDESTRIAN BRIDGE VIEW
11
MASTER PLAN
12
PEDESTRIAN NETWORK
STREET NETWORK
PUBLIC GREEN GREEN SPACES
PRIVATE GREEN GREEN ROOF MIXED-USE
BUILDING TYPOLOGY
RESIDENTIAL COMMERCIAL CIVIC
BUILDING MASSES
EXPLODED AXONOMETRIC 13
PERFORMANCE AREA VIEW
MIXED-USE HOUSING
SECTION 1
14
PEDESTRIAN WALKWAY
FARMERS MARKET VIEW
WATERFRONT STEPS
PEDESTRIAN BRIDGE
15
SOCIALLY DISTANCED PARKELT Location: Washington, DC Advisor: Georgeanne Matthews
FLUIDITY IN MOTION The parklet becomes a serenity space where people escape from their busy lives. The wood ribbon encourages a constant movement through the space for people to experience. It allows them to move freely from one entry point to the other while having the option to sit down and relax or appreciate the artwork displayed.
CONCEPT DIAGRAMS
CONCEPT MODELS 16
PLAN
ELEVATION
SECTION
17
LIBRARY OF POETRY Location: H st, Washington, DC Advisor: Carlos Reimers
DESIGNING FOR THE FUTURE The growing development of the H st corridor calls for the creation of a civic building that enhances the residential life within and around the neighborhood. Located in a mixed use residential zone, the urban library serves as an iconic building that continues and allows the modernization of the H st corridor. The centrally organized library located at the corner of 7th and H st NE, responds to its context with the continuation of the commercial strip by locating a cafe in the lower front portion that can be accessed from both the street and the inside of the library. Thus activating the space and attracting people into the building.
ORIGINAL MASS
CONCEPT DIAGRAM 18
A VOID IS CREATED INSIDE THE MASS TO CREATE THE ATRIUM
SOUTH VIEW
19
Admin. Office Storage
7th St NE
Stacks
Lobby
Atrium
Coffee Shop
H St NE
FIRST FLOOR PLAN 20
Reading Area
THIRD FLOOR PLAN
Storage Meeting/ Conference Room
Digital Area
Reading Area
SECOND FLOOR PLAN
21
SOUTH ELEVATION
LONGITUDINAL SECTION 22
EAST ELEVATION
23
FIRE STATION N.10 Location: Arlington, Virginia Team Project - 2 Members Advisor: Robin Puttock
A RELATIONSHIP TO A GREATER WHOLE. INTEGRATING WITH THE COMMUNITY AND NATURE. The concept of the fire station is to create a relationship with a greater whole while integrating with the community and nature. In the parti, you can see we are embracing this central core that extends vertically. The building is oriented EAST-WEST to maximize energy and daylighting through the building, and it also takes advantages of views into nature while also creating views to the inside courtyard as you see in our site plan. w Because of the many necessities the occupation of a fighter must have, as well as the amenities and facilities they need to have, we created a building that embraces the firefighters, through its commitment to mental health and wellness while also optimizing the use and function required by the profession.
PARTI DIAGRAMS 24
PUBLIC VIEW
BACK ENTRY VIEW
OVERALL LOCATION
NEIGHBORHOOD VIEW
0mi
2mi
4mi
FOUR MILE RUN VIEW
PROJECT LOCATION
VICINITY ANALYSIS
SITE ANALYSIS
0mi
0’ 120’
0’ 80’
1.5mi
360’
240’
3mi
720’
480’
25
PV RM. IT
ELEC. CLT.
STO.
LOUNGE
WEIGHT ROOM
KITCHEN + DINING
DAY ROOM
MECH ROOM
0’
4’
8’
16’
MEDITATION ROOM
32’
UPPER FLOOR PLAN
IT CISTERN RM.
ELEC. CLT.
ELEV. RM
LNDRY. RM. STO.
BUNK ROOM
BUNK ROOM BUNK ROOM
BUNK ROOM
MECH ROOM
0’
4’
8’
16’
LOWER FLOOR PLAN 26
32’
BUNK ROOM
BUNK ROOM
BUNK ROOM
BUNK ROOM
BUNK ROOM
BUNK ROOM
BUNK ROOM
BUNK ROOM
SPKL. RM. PPE IT
ELEC. CLT.
VESTIBULE
SAFE HEAVEN
DECON APPARATUS BAY
LOBBY OFFICE 1 DECON
LNDRY. OFFICE 1
P. LNDRY P. LOCK.
MECH ROOM
0’
4’
8’
16’
OFFICE 1
MULTIPURPOSE ROOM
STUDY ROOM
32’
MAIN FLOOR PLAN
In the main floor, it is the main entry vestibule on the north side, the office spaces looking out to the four mile run located along this Eastside, and the multipurpose and study rooms on the Southside. Located here is our apparatus bay that allows for four pull through bays, and lined up along this west side are located the support spaces. In the middle of the level, it is the decontamination area that acts as a barrier to stop the spread of contaminants from the apparatus bay into the main living and working spaces.
27
WEIGHT ROOM
APPARATUS BAY WHITE ROOF
GEOTHERMAL WELLS
17 Geothermal wells 300 ft deep 20 ft O.C located by the apparatus bay. The geothermal system the temperature of the ground to boost efficiency and reduce operational cost of heating and cooling.
White roof surfaces reflect 78% of the suns ray to reduce energy loads and prevents the heat island effect.
CLT STRUCTURE
Collects and stores carbon. Allows for a fast on-site construction process.
APPARATUS BAY
INTERIOR COURTYARD
Vertical gardens dampe reduce noise and natur infuse the air with oxyg reduce carbon dioxide for overall improved qu
WEIGHT ROOM
BUNK ROOM The centralized mechanical system connects with the geothermal wells that are then transfered to the pump rooms located around the building.
LONGITUDINAL SYNERGY SECTION 28
KITCHEN + DINING PV ARRAY
en and rally gen and levels uality.
488 Photovoltaic panels on the roof complements the energy performance of the building generating 204,123 kWh, significantly offsetting the buildings energy usage by half.
Building EUI without PVs
Building EUI with PVs
43
26
Sefaira Sketchup Plugin
Typical EUI for US Fire Station
63.5
EUI of New Fire Station
26 Data from Energy Star Portfolio Manager
KITCHEN + DINING
OFFICE 2
NATURAL DAYLIGHT
The building’s optimal east-west orientation, makes the reduction of lighting loads by extensive daylighting, a central skylight and glazing balanced at the north and south.
Foot-candle levels on September 5th @ 9 AM
0
19
37
56
74+
BUNK ROOM
29
2
METAL COPING
(2) LAYERS OF 3/4" PLYWOOD W/ 2 WOOD BLOCKING, TYP. VAPOR BARRIER & 3/4" EXTERIOR SHEATHING ON 3 5/8" COLD FORM METAL FRAMING W/ BATT INSUL. TYP.
1' - 3"
TOP OF PARAPET 32' - 0"
FLASHING
COMPRESSIBLE FILL MATERIAL @ CURTAIN WALL MULLIONS
TPO MEMBRANE 1/2" COVER BOARD 4' - 0"
CONT. SEALANT ON BACK ROD, TYP.
6" TAPERED POLY‐ ISO INSULATION
SPRANDREL PANEL ROOF VAPOR RETARDER
UPPER ROOF 28' - 0"
7‐PLY CLT ROOF PANEL
8X16 GLULAM BEAM
2 CURTAIN WALL ALUMINUM SILL EXTENISON
0' - 6 1/2"
1' - 0"
FLOOR FINISH
FIRE CAULK JOIN, TYP. SEAL AROUND ENTIRE PERIMETER
2" CONC. TOPPING 1' - 5"
UPPER FLOOR 13' - 0"
1" ACCOUSTIC INSULATION
8X16 GLULAM BEAM
3' - 0"
SPANDREL PANEL
7‐PLY CLT PANEL
1' - 3"
CURTAIN WALL ATTACHMENT
FILL CAVITY WITH MINERAL WOOL INSULAITON
WOODWORKS VENEER PLANK CEILING
18 GA GALVANIZED STEEL PAN ENCLOSURE SEALED TO CURTAIN WLL SYSTEM AND GLULAM COLUMN WITH FIRE CAULK
KAWNEER AA 250 THERMAL ENTRANCE DOOR SYSTEM
2
0' - 8"
METAL COPING
1' - 0"
PAVERS OVER 2" SAND BED W1/4" PER FOOT SLOPE AWAY FROM BLDG.
COMPRESSION FILLER RECESSED FLOOR MAT
MAIN FLOOR 0' - 0"
6" GRAVEL BED
1" ACCOUSTIC INSULATION
CUSTOM CAST STONE SILL
7‐PLY CLT
SPRAY APPLIED WATERPROOFING
8X16 GLULAM BEAM
FLUID APPLIED ASPHALT DRAINAGE BED
STEEL ANGLE RIGID INSULATION GROUT
2
CONC. FOUNDATION WALL. SEE STRUCT DWGS. 2' - 0"
COMPRESSION FILLER
FLUID APPLIED ASPHALT DRAINAGE BED
6" CON. SLAB ON GRADE
R FLOOR "
3" RIGID INSULATION
SPRAY APPLIED WTERPROOFING 3" RIGID INSULATION
WATERPROOFI NG MEMBRANE 6" GRAVEL INFILL
FILTER FABRIC DRAIN
F FOOTING "
6' - 2 9/32"
1' - 0"
1' - 0"
6" PERFORATED DRAINAGE PIPE
CAST IN PLACE CONCRETE FOOTING, SEE STRUCT.
NORTH WALL SECTION 0’
4’
8’
16’
The biophilic experience also continues inside of the building. Cross laminated timber is used as the main structure for its carbon neutral properties to reinforce the embrace of nature and its functionality. 30
32’
7
TOP OF LOWER PARAPET 30' - 0"
5 PLY CLT FORMED METAL COPING
TPO MEMBRANE
PLYWOOD BLOCKING
POLY‐ISO ROOF INSULATION (TAPERED TOWARDS ROOF DRAIN)
CONTINUOUS BENT PLATE
AIR GAP
ROOF VAPOR RETARDER 7‐PLY CLT DECK ANCHOR RODS
PANEL SUB‐FRAME SUPPORT BRACKET
LOWER ROOF 26' - 0"
VERTICAL CHANNEL (SUB GIRT) FIBERGLASS CONCRETE PANEL 2" RIGID INSULATION EXTERIOR SHEATHING AIR AND VAPOR MEMBRANE
KAWNEER COMPOSITE WINDOW
7 FINISH FLOOR 1" ACOUSTIC INSULATION 7 PLY CLT DECK ANCHOR ROD METAL PLATE TIGHT FIT DOWELS
UPPER FLOOR 13' - 0"
PANEL SUB‐FRAME SUPPORT BRACKET AIR AND VAPOR MEMBRANE VERTICAL CHANNEL (SUB GIRT) 2" RIGID INSULATION EXTERIOR SHEATHING
7 5 PLY CLT WALL 2" RIGID INSULATION EXTERIOR SHEATHING AIR AND VAPOR MEMBRANE TIGHT FIT DOWELS
PANEL SUB‐FRAME SUPPORT BRACKET VERTICAL CHANNEL (SUB GIRT) FIBERGLASS CONCRETE PANEL
METAL PLATE FINISH FLOOR
PRECAST CONCRETE SILL BLOCK
1" ACOUSTIC INSULATION
STEEL ANCHOR
1' - 0 1/2"
MAIN FLOOR 0' - 0"
RUBBER SEALED CONNECTION ADJUSTABLE VENEER TIE 3" RIGID INSULATION
ANCHOR ROD
COMPOSITE DRAINAGE BOARD
7 PLY CLT PANEL
1' - 1"
COMPRESSION FILLER
1' - 0"
SPRAY APPLIED WATERPROOFING 2" STONE VENEER 1" AIR GAP SEALANT DOWELLED CORNER CONCRETE FOUNDATION WALL. SEE STRUCT DWGS. COMPOSITE WINDOW
7
COMPRESSION FILLER
6" CONC. SLAB ON GRADE WATERPROOFING MEMBRANE
CONC. FOUNDATION WALL SEE STRUCT. COMPOSITE DRAINAGE BOARD
3" RIGID INSULATION 3" RIGID INSULATION 6" GRAVEL FILL
BEVELED KEYWAY
LOWER FLOOR -13' - 0"
SPRAY APPLIED WATERPROOFING
FILTER FABRIC DRAIN 6" PERFORATED DRAINAGE PIPE
GRAVEL INFILL CAST IN PLACE CONCRETE FOOTING, SEE STRUCT.
TOP OF FOOTING -16' - 0"
SOUTH WALL SECTION 0’
4’
8’
16’
32’
31