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ARCH 352 CHALLENGE ONE
Building systems and structures
70 cards·by mohamed shokry
team challenge
for__________,the architectural expression was strongly tied to the structural
elementslike beam and column
classic Greek architecture
to bring out the nature of the material
Frank Lloyd Wright
employing materials according to their nature....they have a will of their own
Nervi
an assembly of interrelated or interdependent parts forming a more complex and unified whole
a system
Exterior wall is classified as
enclosure system
elevators and escalators are considered to be
mechanical system
building foundation is
a sub structural system
the _________is the prime mover for buildings construction
owner
a group of statements for specific requirements to Establish minimum
constructionstandards for the protection of life, health, and welfare
Building Codes
According to __________, all exit stairways must be located within 200
Building codes for fire safety,NFPA
According to__________, it is recommended to provide a storage room for each computer lab
Architectural International Standards
Building Codes mission is to ________ the building activities
Regulate
Building Codes mission is to________ user groups, construction types, fire
resistanceratings, material
Define
according to occupancy classifications in codes, Auditoriums considered to be
Assembly Building
according to occupancy classifications in codes, colleges considered to be
Business Buildings
according to occupancy classifications in codes, clinics considered to be
Institutional Buildings
according to occupancy classifications in codes, stores for display and sales
areconsidered to be
mercantile building
to select the appropriate structural system for the building ,you should consider________
1. the span. 2.internal space planning, 3.the external treatment
_________ refers to a system of connected parts that can support loads
structure
the five Characteristics of a Structure are:
Strength Stability Economic Value Serviceability Environmental conditions
Structures classifications typology by materials:
wood,masonry,concrete, steel
Structures classifications typology by span size :
short,medium,wide
Structures classifications typology by span action :
one way, two way
Structures classifications typology by stiffness :
Rigid,flexible
Forces induced by gravity
dead loads,Live loads
lateral forces on buildings includes:
by wind earthquakes rain/snow Fluid pressures
structural sub-systems includes
substructures(foundations) and superstructures(roof,floors and walls)
samples of Basic structural elements include:
-Beam, Column, Truss, Arch, Vault, Dome
in Vertical Structure Systems:
X or Y < Z.........lateral loads :wind,earthquake,….. Main concern: WALLS
roofs supported with vertical elements subjects of compression
post & beam:load bearing walls , skeleton frams
roofs supported with vertical elements subjected of tension
masted,tensile ,membranes
roofs structural systems
domes,vaults,arches.....
the architect disregards the structural considerations when determining the buildingform
structure ignored
the structure is emphasized visually as an essintial element of the
architecturalvocabulary
structure symbolized
the design of the structure is the highest priority, and the structural engineer is the
maindecision maker
structure dominant
load bearing walls may be of:
concrete,masonry or timber
load bearing walls has 3 disadvantages:
restrictive interior space planning, external facade,limitid area for openings
for skeleton frames,it's commonly used in:
steel,concrete,tembir
if we join a beam to it's two supporting columns with rigid connection
portal frames
portable frames are suitable for _____size spans
medium
the truss must be divided into ______
triangles
trusses can be constructed with:
steel,aluminium or timber
____ is a flat plate with many holes in it
space frames
the _____is a truss that works in two directions
space frame
the only suitable material for folded roofs is________
reinforced concrete
folded roof can be built with minimum thickness to cover a span up to__________ m
20
_______ belong to the family of arches,domes and vaults.
shell structures
two types of tensile structures are:
membranes & masted
__________ are flexible membranes that derive their stability from air pressure
pneumatic structures
estimate the thickness of ONE WAY slab of 9 meters span
37 cm
estimate the thickness of TWO WAY slab of 14 meters span
39
Waffle slab is considered as_________
beam supported RC floors
flat plates structures are suitable for__________buildings
hotels,healthcare
mention three advantages of cast-in-place RC constructions
1. small size project, 2.rigid connections, 3. free forms
why precast RC construction are suitable for campus size projects.
1.quality control, 2.time , 3.cost efficient for large size, 4. better finishes
three types of reinforcing steel bars:
bar roll, ribbed rebar, Welded wire mesh
three types of reinforcing steel splicing:
1.welding, 2. mechanical, 3. lap
the most common type of steel bars splicing is _________, because________
lapping, save time,effort and no need for hardwares
Two important criteria must be considered in the location of reinforcing bars in a concrete
section:
(1) sufficient cover , (2) proper spacing must be provided between the bars
the average cover for columns' reinforcing steel bars in normal weather conditions is______
5 cm
__________ is the term given to either temporary or permanent molds into which concrete or
similar materials are poured.
Formwork
Most round columns are formed by the use of_________
steel or fiberboard tubes
What is the primary purpose of reinforcement in concrete girders and beams? concrete
columns?
tension loads, lateral loads ,resistance to rotation, more stability of frame
estimate the columns dimensions for a slab of 13 m X 10 m dimentions
30 cm X 30 cm
estimate the columns dimensions for a slab of 16 m X 18 m dimentions
50 cm X 50 cm
Normally, __________ are not recommended when splicing normal reinforcing bars.
welded splices
_______ splicing are normally used for large bars
Mechanical
a _________ should be provided at the bottom of the form so that debris may be removed before
placing begins
cleanout opening
_______ are often built into one side of tall column forms to allow the placing of concrete in
the bottom half of the form
Windows
Precast panels can be fabricated as _________ with insulation laminated between the
innerand outer layers, thus providing an energy ef
sandwich units