FINITE ELEMENT ANALYSIS OF THE SEISMIC BEHAVIOR OF THE ASSEMBLED LIGHT STEEL FRAME- LIGHT WALL STRUCTURES

In order to meet the needs of the development of low-rise assembly structure in rural areas, a fabricated light-weight steel frame-composite light wall structure is proposed in this paper. The light-weight steel frames are used to bear the vertical loads. The single-row-reinforced recycled concrete wall-boards are used as lateral members to resist most of the horizontal earthquake loads. The wall-board, EPS (Expanded Polystyrene) insulation modules, and fly ash blocks form the thermally insulated wall. Four fabricated lightweight steel frame-composite light wall structures and one light-weight steel frame (FRA) structure were tested under the low cyclic loads. The influence of wall reinforcement spacing and structural form (be it fly ash block or not) on the seismic performance of this new structure was analysed and the damage process of the specimen was simulated using the ABAQUS® software. The results show that the light steel frames and the single-row-reinforced recycled concrete wall-board can work well together. Furthermore, the structure has two clear seismic lines. Due to the use of EPS insulation modules and fly ash blocks, the structure has good anti-seismic and thermal insulation abilities. Reducing the spacing of bars or compositing fly ash blocks can significantly improve the seismic performance of the structure. The finite element method (FEM) calculations agreed well with the experimental results, which validates the proposed model

Residential child care in the spotlight: reflections on being involved in the BBC series 'social workers'

Describes how a residential unit offering services for 8 children and young people became involved in the BBC Scotland series 'Social Workers', a fly-on-the-wall documentary about Edinburgh's Social Work Department. Discusses how the unit became involved, the filming process, reactions, and some issues raised. The ethics of filming and broadcasting the lives of young people was contentious. Obviously much was lost when 5 months had to be reduced to 30 minutes, but it was generally agreed the results were positive

Study of Unsteady State Thermal Characteristics of Homogeneous and Composite Walls of Building and Insulating Materials for Passive Cooling

Passive cooling is one of the methods to keep the building cool and to reduce the load on air conditioner. Passive cooling demands the study of the thermal characteristics like admittance, transmittance, decrement factor, time lag, surface factor and surface factor time lags. These characteristics were determined for both homogeneous and composite walls. The buildings are built with composite wall. This demands the study of thermal characteristics of composite wall. In this study, five building materials like Laterite stone, Burnt brick, Mud brick, Reinforced brick and Fly ash bricks were selected as homogeneous building materials. Five local Insulating materials such as Saw dust, Rice husk, Coir board, Jute felt and Jute fiber were selected to form the composite wall along with building materials. The composite walls were framed using the combination of building materials and insulation materials. Total hundred combinations of composite walls, without insulation (Configuration-A) and with insulation material located at inner side (Configuration-D), insulation material at mid plane (Configuration-C) and insulation material at outer side (Configuration-B) of the composite wall were studied. To study the thermal characteristics of such configurations of composite wall, one dimensional heat flow diffusion equation was solved using matrix algebra under periodic boundary conditions. The penetration length of thermal waves, the phase velocity of the heat wave in the wall and optimum fabric thickness of the selected building and insulating materials were calculated. From this study it is found that the decrement factors of the fly ash brick (0.401) and jute felt (0.4) are the least and the time lags of the fly ash bricks (8.15h) and jute felt (8.75h) are the highest among all the studied homogeneous building and insulating materials. Hence these two homogeneous materials are more effective building and insulating materials at suppressing temperature swings. It is summarized that insulation located at the inner surface (Configuration D) of the composite wall gives the lower time lags and higher decrement factors. This is the worst condition of insulating the wall among all the studied configurations. It is also concluded that fly ash brick composite walls with jute felt insulation located at the mid plane of the wall give greater time lags (11.17 h) and reinforced brick composite walls with rice husk insulation located at the inner side of the wall give lower time lag values (7.37h). It was also observed that fly ash brick composite walls with coir board insulation located at the outer side of the wall give the lowest value of decrement factor (0.17) and reinforced brick composite walls with jute fiber insulation located at the inner side of the wall give higher decrement factors (0.37). Fly ash brick composite walls with jute felt insulation located at the mid center plane of the wall are the most recommended composite walls among all the studied composite walls. Henceforth this composite wall is recommended for passive cooling

FLY on THE WALL: Interactive Visual and Audio Installation

Fly on The Wall is a visual-audio installation that incorporates an interactive walk thru; staged lighting, props, and visual components for each movement of the eight-minute piece of music. It utilizes and applies dramatic theory; French Scenes, color theory, and character development. The set is cyclical in design and shape, and divided into three sections, bestrepresenting an exposition/point of attack, climax and denouement. The purpose of the installation was to serve as an experiment in the delivery of character, narrative, commercial audio and reactive interaction with the individual listener. All challenges throughout the process were met and resolved with ease. Ultimately the installation was completed and opened to the public at the Centre del Carme Museum in Valencia for a weekend. Moving forward it is the intention to erect this installation again in varying venues, as an integral way of marketing the future business endeavor for the creation of community computer labs and creative space. In addition, the artistic hope is that Fly on The Wall will develop into a multi character series.https://remix.berklee.edu/graduate-studies-production-technology/1154/thumbnail.jp

A heavy body translating in a boundary layer: 'crash', 'fly away' and 'bouncing' responses

The study concerns a slender, heavy body moving with streamwise velocity in a boundary layer. Modelling assumptions on body size reduce the governing equations for the body motion to a pair of nonlinear integro-differential equations (IDEs) which displays a wide range of distinguished behaviours, including eventual collision with the wall ('crash'), escape to infinity ('fly away') and repeatedly travelling far from the wall and back again without ever colliding or escaping ('bouncing'). The paper gives a survey of the variety of behaviour, as well as asymptotic analysis and insight into each category of fluid/body interaction and the conditions under which crash, fly away and bouncing occur

Student's experiment to fly on third Shuttle mission

A spaceborne student experiment on insect motion during weightlessness scheduled to fly on the third flight of the space shuttle is described. The experiment will focus on the flight behavior in zero gravity of two species of flying insects with differing ratios of body mass to wing area, the velvetbean caterpillar moth and the honeybee drone. Ten insects of each species will be carried in separate canisters. The crew will remove the canisters from the storage locker and attach them to the mid-deck wall, where the insects will be observed and filmed by a data acquisition camera