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Alison Ledwith

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Simultaneity and Computational Design

December 13, 2012 by Alison Ledwith

This theoretical project explores computational design strategies. Here, architecture is imagined in a form more complex than can be readily understood from one vantage point, requiring an understanding of simultaneity in its experience and expression. The result is an inherently disorienting museum space and temporary lodging for scientists visiting CERN.

Simultaneity

Simultaneity is a concept understood both in the science world and in the art world. Since the art definition is lifted from the science, it is important to begin with the theory of relativity. This theory is best explained by Einstein, who aptly understood that a form fixed in position is moving in time with respect to another reference frame. In the converse, events only occur simultaneously from one reference frame. Reference frames, time dilation, and the nature of relativity become apparent at the speeds observed at the Large Hadron Collider at CERN (the physical reference point for these theories).

Thus, this architecture will focus on the nature of space as perceived by Einstein and epitomized through the following two statements (in Relativity):

  1. “Without compelling necessity, one ought not to ascribe reality to a thing like space, which is not capable of being ‘directly experience.’”
  2. “The concept of space as something existing objectively and independent of things belongs to pre-scientific thought, but not so the idea of the existence of an infinite number of spaces in motion relatively to each other.”

Analytical Cubism arose in nearly the same time and attempted to assign artistic form to the new way of thinking. Paintings as part of this movement deal with the representation of complex spatial conditions as planar elements, resulting in a 2.5 D understanding of the world.

Relationship to Architecture

For all of its complexity, mesh generation (in digital tools used for architecture) creates a system of quads and triangles that ultimately represent the world in the same 2.5 D format that was understood 100 years ago. The benefit of both of these theories is that they have the potential for a level of nihilism unrealistic of the nature of architecture. Through the generation of mesh in a computational environment, a perception of complexity in the midst of planar representation will result. Further, while a mesh-generating program cannot result in infinite architecture, the building can describe the existence of multiple computational organisms simultaneously in the same space, each fixed in time but with the implications of previous and future movement.

Computational Design

The building is generated in Processing using 200 particles arranged in a ring. The particles are given a variable velocity and assigned a trajectory based on attractors (rather than a direct line of motion, this system uses an angular tolerance of trajectories and enforces that tolerance based on a probability factor). The system explores notions of collision detection and bifurcation/topology change. A complex folding behavior is generated through interactions between multiple attractors.

The building itself has an entry through one of the final tendrils, a public museum in the main space with the back-of-house spaces at the start of the mesh-generation algorithm. All private spaces for administration and visiting scientists are found in the tendrils of the building and feature views of Lake Geneva.

Filed Under: M.Arch. Projects, Portfolio, Research Tagged With: computer programming, rural

LCRA Environmental Learning Center, Matagorda Nature Park, Matagorda, TX

December 15, 2010 by Alison Ledwith

The Lower Colorado River Authority maintains a series of nature centers, including a small center in Matagorda, TX. A second, larger building is desired in the area to include conference space, exhibits, and offices for the nearby region. This 12,000 square foot nature center can function either as an enclosed center or as an open pavilion. Since the river is a fundamental portion of the mission, this building has been sited half upon land and half in water. The lower level includes decks, docks, and expendable program elements to accommodate the fifteen foot storm surge in the area. The upper level features the main spaces. All of these components are beneath a curved photovoltaic roof with integral gutters, which provides a substantial percentage of the electricity and rainwater needs of the building.

Program Description

One can explore the docks on the lower level or proceed upstairs to the exhibit and conference spaces. The longest bar, spanning both over land and water, is the main exhibit space of the building. To accomodate the flexible needs of the center, sliding walls form both the exterior perimeter and interior subspaces for classroom needs. The bar along the entry includes the conference space and support facilities, while the terminal angled bar houses an observation deck for bird watching. This center is part of a larger development plan including the parking area and a nature trail for incorporating exhibits within the lagoons.

Form and Structure

The building uses a 20’x20′ modular grid in all bars of the program. The three programmatic bars form an outdoor courtyard space, which can also be used for conference proceedings. Roof level on the second floor is dictated by program and creates an overall umbrella-like canopy over the space. Construction details of this system continue the umbrella metaphor in creating a structural grid with separate components resisting gravity and uplift. The roof bends into two cores used to house rainwater collection and native aquatic life; in addition to their programmatic purpose, these cores are reinforced for shear to guard against hurricane force winds. The remaining structural elements of the building include a glulam frame and concrete pile foundation, whose continuous load path is indicated in the large-scale construction details.

 Environmental Learning Center

The architecture of the building seeks not just to house conferences on environmental learning but to use the building itself as an instructional tool. To that end, all services are integrated and exposed, such as the use of the roof to channel rainwater into collection tanks. Walls in the building completely open up for natural ventilation, allowing the conditioning to occur without the use of electricity during the better weather seasons in the region. Integrated cool beams provide additional climate control when natural efforts are insufficient. Photovoltaic panels, LED lighting, and the use of stable ground and water temperatures in system design minimize the energy use of the building.

Documentation

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Filed Under: B.Arch. Projects, Portfolio, Synergy Tagged With: curved roof, grid system, integrated structure, rural, sustainable design

Winery, Tow, TX

May 16, 2009 by Alison Ledwith

This 30,000 square foot winery is located on the hill above the vineyards. Formally resembling a rock outcropping, this cantilever structure extends over the landscape and orients the visitor toward the view below.

Building Approach

Trees obscure the approach to the building until reaching the tip of the cantilever. The road circles the structure to allow a full view of the building and terminates at the rear. The threelevel winery is a collection of nine 40’ modules, which have been stacked and nestled in the landscape. The building is on axis with the vineyards and the lake beyond, which allows for views from modules.

The Operation of a Winery

Winery operation requires that an extensive set of programmatic requirements be met to facilitate the linear manufacture process. The second level is the main and entry level of the building, where trucks load and unload materials. The southwest bar of the building includes the laboratory, bottling line, and chemical storage facilities. The central bar includes the two-story fermentation tank space with an occupiable catwalk at ground level for tours and maintenance, as well as the barrel storage and cafe of the building. The northeast bar of the building includes sales, administration, and additional outdoor seating for the cafe.

In addition to the sectional organization, in plan the building operates with the tours taking place on the main and upper levels, while back-of-house operations occur on the lower level of the building. Finally, all spaces included on the main manufacture line have been designed for forklift operation and turning radii.

Sound Building

The project not only considers the programmatic requirements but also the technical requirements of structure and mechanical systems. The construction section and 1/2″ = 1′ bay model of the building demonstrate the structural premises of integrally cast concrete with slabs and walls as the sides of a “box beam.” Duct systems are sized in the mechanical diagrams and exposed in the work spaces; in contrast, a finish ceiling is included in the cafe and visitor spaces. Open web joist catwalks form the second level of the fermentation room for proper tank maintenance. Finally, the site plan meets requirements for parking, water retention, grading, and truck clearances and turning radii.

Interior

The thick walls necessary for the structural design create an earthy, cave-like quality in the interior spaces, with board-formed texture imitating rock strata. In areas where the thickness is not required for structural integrity of the cantilever, window openings have been included. In addition, the concrete walls are constructed with cavity spaces in the non-cantilever portion of the building; these cavities function as light wells with light filtering through gaps in the board-formed texture on the walls. Additional lighting is found at the oriented ends of the tubes; most ends are simply doubly-glazed, but the wine shop features water-filled wine bottles filtering the light to protect the integrity of bottled wine in the room.

Documentation

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Filed Under: B.Arch. Projects, Portfolio, Synergy Tagged With: integrated structure, modular system, rural

Pavilion for Bird Watching, Hornsby Bend, TX

March 10, 2007 by Alison Ledwith

This structure functions as a bird blind near a local bird watching region. The curved roof is an exercise in finding form through structure. The form of the roof takes cues from the coastline, as the blind located just off of the water. The roof has one language, which defines space through its columns, while the ground plane has a second language, defined through multiple levels and the blind fence.

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Filed Under: B.Arch. Projects, Objects, Portfolio Tagged With: curved roof, rural

An Archive for Theatrical Work

December 17, 2006 by Alison Ledwith

As the culmination of my first semester in architecture school, I designed a project as a purely form-finding exercise, without a reliance on material, program, or a specific site. This archive houses theatrical texts within the earth, while the roof is multi-level to allow impromptu performance spaces. This simple project includes ideas of stacking modules, occupiable roofs, and the use of outdoor space as footprint to minimize building footprint.

Filed Under: B.Arch. Projects, Objects, Portfolio Tagged With: occupiable roof, rural

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