by Rusheb Arab Maqbool (1DS09CV013)

by Rusheb Arab Maqbool (1DS09CV013)MONOLITHIC DOME

ContentsObjectivesStresses acting on DomeMaterialsConstruction methodAdvantagesDisadvantagesConclusionBibliography

OBJECTIVESTO STUDY THE DESIGN OF THE DOMETO STUDY ABOUT MONOLITHIC CONCRETE DOMESCONSTRUCTION AND THERMAL PERFORMANCE

STRESSES ACTING ON DOME

Generally, a spherical dome may be imagining consisting of a number of horizontal rings placed one over the other. The diameters of the successive rings increase in the downward direction and the equilibrium is maintained independently of the rings above it. The circle of each ring is called latitude while the circle drawn through two diametrically opposite points on a horizontal diameter and the crown is known as a meridian circle. The entire meridian circles coverage at the crown of the spherical dome. Two types of stresses acting on the domes are

Meridional thrust (T) along the direction of meridian

Hoop stress along latitudes

The Process for building dome enclosures has been refined and streamlined over the years. There are two principle types of dome enclosures: Monolithic Domes, larger insulated homes and buildings, and Ecoshells, smaller domes developed especially for hot weather climates, disaster relief and redevelopment of substandard housing. Ecoshells represent the best option for low cost safe housing in areas where earthquakes, fires, floods and hurricanes are a possibility.Although ecoshells are not insulated, their design maintains a cool, near constant temperature. Ecoshells are ideal for areas with high summer and moderate winter temperatures. They are constructed using concrete and rebar and can be built in a short amount of time.MATERIALSAIRFORM KITSPOLYURETHANE FOAMREINFORCING STEELCONCRETECONSTRUCTION METHODS

A Reinforced concrete foundation ,or ring beam, is constructed, defining the shape of the base of the structure

The fabric form, or Air form, is attached to the foundation and inflated with an air blower

A layer of polyurethane is sprayed on the interior of the form to give it rigidity

Rebar is attached to the outside layer of the foam, using clips that are attached to the foamSeveral inches of concrete is sprayed over the rebar frameAfter the concrete is set the blower is turned offSurface treatment like paint or tile can be applied

Grid foam mono dome (below)Concrete constructionTypical interior layout of a Monolithic Dome

Largest monolithic dome

Faith Chapel Christian Center in Alabama, which is 72 feet (22 m) tall, and 280 feet (85 m) in diameter. Inside is a floor area of 74,500 square feet (6,920 m2) in two levelsADVANTAGESMonolithic domes are one of the most Environmentally friendly structures.They are very rigid structures ,they have been known to survive tornadoes ,hurricane ,earthquake and fire It needs minimum energy to maintain a comfortable interior The dome shape give two major advts Great strength and Good insulation

DISADVANTAGESEngineeringOnly specially trained construction crew are suited for the building of a dome using modern techniquesThe curved surface results in oddly shaped room when divided ,which results in wastage of spaceThe monolithic domes lack of seams make it too well sealed ,Dehumidifiers are required in dry climatesSocialThe radically different appearance of monolithic domes decreases the appeal for their use as private residences.Building permits are difficult to obtain from govt. officialsResale of monolithic domes may be difficult because of its unconventional appearance

CONCLUSIONMonolithic is dedicated to improving peoples lives worldwide by introducing and constructing Monolithic Domes ,for personal and public use ,that are disaster-resistant ,energy efficient and cost effective.Monolithic Domes are the most enery efficient and safest buildings that can be built and that can be designed for many uses. Monolithic domes are designed as tornado or storm shelters.Monolithic domes are made into gymnasiums ,auditoriums ,multipurpose centers etc. Because Monolithic Technology meets criteria for a structure that can provide near absolute disaster protection ,and in most cases they save money on first cost of the construction. The monolithic dome has sufficient durability and which offers exceptional resistance to earthquake ,fire and extreme wind.BIBLIOGRAPHYGoogle (www.google.com)Wikipedia (www.wikipedia.com) www.monolithic.com www.domeofahome.com Building monolithic domes by Sean Lanham Trinity Dome Construction log

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