Iran Nezam Architecture Design Exam key terms
Iran Nezam Architecture Design Exam · Get comfortable with the vocabulary.
- Chahar Bagh (fourfold garden)
- Related: Hasht Behesht, Persian Garden (Bagh)
A Persian garden layout divided by two crossing axes into four quadrants, usually with a central pool or pavilion. It symbolizes paradise and organizes water, planting, and paths into a clear geometric order.
- Hasht Behesht (eight paradises)
- Related: Chahar Bagh (fourfold garden), Iwan
A plan type based on an eight-part radial arrangement around a central domed or vaulted space. Common in Safavid pavilions and gardens, it produces symmetrical views and cross-ventilation in all directions.
- Iwan
- Related: Pishtaq, Four-Iwan Plan
A vaulted hall open on one side to a courtyard or facade, framed by a large arch. It is a core element of Iranian mosques, madrasas, and caravanserais, marking entrances and directing movement.
- Pishtaq
- Related: Iwan, Muqarnas
A monumental arched portal projecting from a building facade, often decorated with tilework and muqarnas. It announces entrances to mosques, shrines, and madrasas and is a signature of Iranian Islamic architecture.
- Muqarnas
- Related: Pishtaq, Squinch
A three-dimensional decorative vaulting made of stacked, corbelled cells that transition between square and circular forms. It appears in portals, domes, and cornices and is executed in plaster, stone, or tile.
- Four-Iwan Plan
- Related: Iwan, Courtyard Mosque
A courtyard layout with a vaulted hall (iwan) centered on each of the four sides, typical of Iranian mosques and madrasas. It creates strong axial symmetry and separates different functional zones around a central court.
- Squinch
- Related: Muqarnas, Dome (Gonbad)
A small arched or corbelled structure at the corners of a square room that carries the transition to an octagon and then to a dome. It is a common alternative to the pendentive in Iranian construction.
- Dome (Gonbad)
- Related: Squinch, Wind Catcher (Badgir)
A curved roof structure spanning a central space, often built as a double shell in Iranian architecture. Double shells improve thermal performance, reduce weight, and create a tall exterior profile above the prayer hall.
- Wind Catcher (Badgir)
- Related: Qanat, Thermal Mass
A tall tower with vertical openings that captures prevailing breezes and exhausts warm air, providing passive cooling and ventilation. Common in hot-arid Iranian cities, it is often paired with qanats and basements.
- Qanat
- Related: Wind Catcher (Badgir), Water Court (Howz)
A gently sloping underground channel that conveys groundwater from an aquifer to settlements and fields without pumping. It supplies irrigation and cooling water and is a central example of traditional water management in Iran.
- Water Court (Howz)
- Related: Qanat, Chahar Bagh (fourfold garden)
A central pool or water basin in a courtyard that humidifies and cools incoming air through evaporation. It also provides a visual focus and reflects light into surrounding rooms.
- Thermal Mass
- Related: Wind Catcher (Badgir), Adobe (Khesht)
The capacity of a material to absorb, store, and later release heat, moderating indoor temperature swings. Adobe, brick, and stone walls in Iranian buildings use this property to delay peak heat gain.
- Adobe (Khesht)
- Related: Thermal Mass, Vault (Taq)
Sun-dried earth blocks used for walls and vaults, often finished with mud plaster. Adobe has high thermal mass and low embodied energy but needs protection from rain and rising damp.
- Vault (Taq)
- Related: Adobe (Khesht), Dome (Gonbad)
An arched ceiling or roof structure, commonly built of brick in Iranian architecture, that spans space and transfers loads to walls or piers. Forms include barrel, groin, and ribbed vaults.
- Load Path
- Related: Shear Wall, Moment Frame
The continuous route by which gravity and lateral forces travel from a structure's point of application to the ground. Clear load paths are essential for stability and are checked in structural design.
- Shear Wall
- Related: Moment Frame, Load Path
A vertical structural wall designed to resist in-plane lateral forces such as wind and earthquakes. In concrete or masonry buildings it stiffens the structure and limits drift.
- Moment Frame
- Related: Shear Wall, Load Path
A frame whose beam-column joints resist rotation, providing lateral stiffness without diagonal bracing. Its ductility makes it common in seismic regions, but it requires careful detailing.
- Seismic Base Isolation
- Related: Shear Wall, Load Path
A system of flexible bearings placed between a building and its foundation to reduce earthquake forces transmitted to the superstructure. It is used for critical buildings and heritage structures.
- U-Value
- Related: Thermal Bridge, Thermal Mass
The overall rate of heat transfer through a building assembly per unit area and temperature difference, expressed in W/m2K. Lower values indicate better insulation and reduced heating and cooling demand.
- Thermal Bridge
- Related: U-Value, Thermal Mass
A localized path of high heat flow through an assembly, such as a concrete slab edge or balcony connection. It lowers effective insulation and can cause condensation and mold.
- HVAC Zoning
- Related: U-Value, Daylight Factor
Dividing a building into separately controlled thermal zones based on orientation, occupancy, and use. Good zoning improves comfort and energy efficiency by matching supply to actual demand.
- Daylight Factor
- Related: Solar Gain, HVAC Zoning
The ratio of indoor illuminance at a point to simultaneous outdoor illuminance under an overcast sky, expressed as a percentage. It is used to predict daylight availability independent of time and season.
- Solar Gain
- Related: Daylight Factor, U-Value
Heat entering a building from solar radiation through glazing, walls, and roofs. It can reduce heating demand in winter but causes overheating and cooling loads without shading and control.
- Fire Compartmentation
- Related: Means of Egress, Fire Resistance Rating
Dividing a building into fire-resisting zones with rated walls, floors, and doors to limit fire and smoke spread. It protects escape routes and allows occupants time to evacuate safely.
- Means of Egress
- Related: Fire Compartmentation, Fire Resistance Rating
The continuous and unobstructed path of travel from any point in a building to a public way, including exits and exit access. It must meet width, travel distance, and door requirements.
- Fire Resistance Rating
- Related: Fire Compartmentation, Means of Egress
The time in minutes or hours that a building element maintains its load-bearing capacity, integrity, and insulation under standardized fire exposure. It is assigned to walls, floors, and doors.
- Floor Area Ratio (FAR)
- Related: Setback, Building Envelope (Zoning)
The ratio of a building's total floor area to the area of its site, used in zoning to control density. Higher FAR allows more built area while limiting open space and infrastructure load.
- Setback
- Related: Floor Area Ratio (FAR), Building Envelope (Zoning)
The required distance between a building and a property line, street, or other reference line. Setbacks protect light, air, privacy, and fire safety and shape the street edge.
- Building Envelope (Zoning)
- Related: Setback, Floor Area Ratio (FAR)
The three-dimensional volume within which a building may be constructed, defined by height limits, setbacks, and floor area controls. It guides massing and protects neighboring amenity.
- Permeability (Urban)
- Related: Setback, Urban Grain
The ease with which people can move through an urban area, measured by the number and connectivity of routes and entrances. High permeability supports walkability and social interaction.
- Urban Grain
- Related: Permeability (Urban), Floor Area Ratio (FAR)
The pattern and scale of blocks, plots, streets, and buildings in a settlement. Fine grain supports diversity and walkability, while coarse grain reflects large-scale redevelopment.
- Bazaar (Covered Market)
- Related: Caravanserai, Maydan (Urban Square)
A linear, roofed commercial street or network in Iranian cities, often with caravanserais and workshops. It organizes trade, movement, and social life and links to the Friday mosque and main square.
- Caravanserai
- Related: Bazaar (Covered Market), Four-Iwan Plan
A roadside or urban inn for merchants and travelers, typically with a courtyard, stables, and storerooms. It supported long-distance trade networks and often used a four-iwan plan.
- Maydan (Urban Square)
- Related: Bazaar (Covered Market), Chahar Bagh (fourfold garden)
A large open urban space used for commerce, ceremony, and public gathering. In Iranian cities it often links the bazaar, mosque, and palace and forms the civic heart of the settlement.
- Nasta'liq
- Related: Muqarnas, Persian Garden (Bagh)
A cursive Persian calligraphic script with flowing, slanted forms, widely used in manuscripts and architectural inscriptions. Its proportions and rhythm influenced tilework and decorative panels.
- Persian Garden (Bagh)
- Related: Chahar Bagh (fourfold garden), Water Court (Howz)
An enclosed, irrigated garden organized by geometry, water channels, and shade trees, often walled to create a protected microclimate. It combines utility, symbolism, and passive cooling and influenced later Islamic garden design.
- Modernism (International Style)
- Related: Brutalism, Phenomenology of Architecture
A twentieth-century architectural movement emphasizing volume, regularity, and the expression of structure, often using reinforced concrete, steel, and glass. It rejected ornament and historic styles in favor of function and abstraction.
- Brutalism
- Related: Modernism (International Style), Phenomenology of Architecture
A post-war movement using exposed concrete and bold massing to express structure and material honestly. It is associated with monumental civic buildings and often with controversial urban renewal.
- Phenomenology of Architecture
- Related: Modernism (International Style), Brutalism
An approach that studies how people experience space through the senses, memory, and bodily movement. It emphasizes materiality, light, and atmosphere over abstract formal rules.
- BIM (Building Information Modeling)
- Related: Clash Detection, Parametric Design
A digital process that produces a shared, data-rich model of a building's geometry, components, and properties. It supports coordination, quantity takeoff, clash detection, and facility management across the project lifecycle.
- Clash Detection
- Related: BIM (Building Information Modeling), Parametric Design
The automated comparison of building models to find physical conflicts between systems, such as ducts intersecting beams. Resolving clashes early reduces change orders and site delays.
- Parametric Design
- Related: BIM (Building Information Modeling), Clash Detection
A design method in which geometry is generated from rules and parameters, so changes to inputs update the model automatically. It enables rapid exploration of alternatives and performance-driven form.
- Orthographic Projection
- Related: Section Drawing, BIM (Building Information Modeling)
A method of drawing objects with parallel lines of sight, producing plans, elevations, and sections at a constant scale. It avoids perspective distortion and is standard for construction documents.
- Section Drawing
- Related: Orthographic Projection, BIM (Building Information Modeling)
A cut view through a building or site showing interior heights, structure, and spatial relationships. It is essential for conveying vertical dimensions and construction assemblies.