Chapter 3 Building Fundamentals Methods And Materials Construction 160

Front 1

________ are concrete pads usually heavily reinforced that transfer the loads of peers or columns to the ground

Back 1

Footings

Front 2

A___________ is a shaft of concrete placed under a building column or wall extending down to bed rock

Back 2

Caisson

Front 3

What would give steel a greater ability to span the gap

Back 3

Corrugation

Front 4

____________ is an inert material composed of calcium sulfate and dihydrate

Back 4

Gypsum

Front 5

Cold drawn still will fail at what temp

Back 5

800 Fahrenheit

Front 6

Structural steel will fail between what and what Fahrenheit

Back 6

1000 1100

Front 7

Reinforced concrete is a___________ material

Back 7

Composite

Front 8

Concrete is tested in_____________ because it virtually has no tensile strength

Back 8

Compression

Front 9

Concrete is a mixture of, name three things

Back 9

Portland cement, water, aggregates

Front 10

What are the dimensions of a typical concrete masonry unit CMU

Back 10

8x16"

Front 11

What that has a nominal thickness of greater than 5 inches is known as

Back 11

Timber

Front 12

The stone arch works because all members of the archer under?

Back 12

Compression

Front 13

What is design build?

Back 13

A contract a single entity is responsible for designing and building a construction project

Front 14

What's the most conventional wood flooring system used?

Back 14

Sawn lumber floor joist as a supporting structural members

Front 15

Where and when are sawn lumber Floyd floor joist systems not appropriate?

Back 15

In regions highly susceptible to termite infestation or dry rot, buildings that require a minimum amount of noise transmission, buildings that desire a lower silhouette, where the crawlspace must be ventilated relative to grade, when sustainability is a concern,

Front 16

Name five principles of wood floor systems construction?

Back 16

Ensure that the wood members are not in direct contact with the concrete, to provide recommended underfloor clearances from the soil, number 3 select floor joist sizes that will minimize deflection or floor moment, number for provide proper metal flashing to protect wood members from possible moisture, number 5 provide recommended underfloor ventilation,

Front 17

What is one method of deterring moisture?

Back 17

Providing an adequate sheet metal flashing system in areas subject to water or seepage

Front 18

What does a permit mentioned mean?

Back 18

Mentioned previously

Front 19

Why is it paramount to protect wood members against moisture?

Back 19

Because moisture can cause dry rot, swelling and buckling of wood members

Front 20

What material is used to support a wooden finished floor?

Back 20

Plywood of varying thicknesses are used as sub floors for supporting finish floor materials

Front 21

What are internal load-bearing foundations assemblies designed for?

Back 21

To support heavy loads from the floor system, load bearing walls ceilings and roof loads

Front 22

How is engineered lumber or wood manufactured?

Back 22

But hearing would strands, veneers, fibers or part of particles together to manufacturer a new product that can be made to meet certain criteria of strength or shape

Front 23

What are the advantages of an engineered lumber wood floor joist system?

Back 23

Floor joist sizes are uniform, lightweight allows for easier handling on the site, splitting, checking, working and crowning are eliminated, system has greater structural capabilities, better construction quality of material.

Front 24

What are the two most conventional types of wood stud wall framing systems?

Back 24

Balloon framing system and or western or platform framing system.

Front 25

What are the disadvantages of an engineered lumber wood floor joist system?

Back 25

1 there are limitations on cutting the members in the framing process, 2 there are restrictions on location and web sections there may be holes cut, proper care must be taken to protect these days prior to installation, the system creates higher building silhouette because of increased depth of joist, cannot paper the floor joist.

Front 26

What are the disadvantages of using a tongue and groove floor system?

Back 26

Shorter spent will require additional foundation walls, orders and Pierce number to the system is not conductive to the use of for cantilevers, number 3 the system is susceptible the termite infestation and dry rot. System does not allow the development of floor beams conventional floor joist systems making by the number of floor joist for the purpose of creating structural beam. Number five the system does not provide space for blanket insulation. Number six sustainability is a concern.

Front 27

Describe the differences between planes on lumber and quarter sawn lumber?

Back 27

Plainsong requires at least positioning Tamar economical and used with structural lumber, quarter sawn lumber is more wasteful requires more positioning produces smaller pieces of lumber usually softwoods.

Front 28

What does EMC stand for?

Back 28

Equilibrium moisture content of the wood

Front 29

In North America the equilibrium moisture content for Xterra exterior wood averages around what percentage?

Back 29

Around 12% for exterior wood

Front 30

What is the equilibrium moisture content for interior wood percentage?

Back 30

8%

Front 31

Give 4 examples of lumber defects

Back 31

Crook, bo, Cup, twist,.

Front 32

Give examples of growth charistics?

Back 32

Knots, knot holes, decay, insect damage. Not enough holes reduce strength of a piece of lumber. Decay and insect damage that occurred during the life of the tree may not affect the usual properties of the piece of lumber

Front 33

Name three characteristics of manufacturing wood.

Back 33

Splits and checks caused by shrinking stresses, cooking, Boeing, twisting, and cupping all occur of non-uniform shrinkage. Wayne is in the air regular rounding of edges or faces too close to the perimeter of the log.

Front 34

What is the differences between plainsawn and quarter sawn lumber?

Back 34

Plain sawn: most econimical, most structural lumber is plain sawn, produces more pieces from log.

Quarter sawn: smaller pieces, greater waste

Front 35

What are the appropriate applications for quarters sawn wood? And plain sawn ?

Back 35

Corner good for flooring exterior siding trim and holds paint better. Plain sawn structural lumber

Front 36

What is division 13

Back 36

Special construction

Front 37

What is Divsion 4

Back 37

Masonary

Front 38

Balloon framing construction

Back 38

A method using continuous studs, from the sill to the wall

Front 39

Dead load

Back 39

A permanent unchanging load, inclueding the weight of the structure itselfplus any permanent elements

Front 40

Fire resistant rating

Back 40

The period of time a building componant such as wall floor can confine fire or maintain structural integrity.

Front 41

Green wood

Back 41

Wood woth high moisture content

Front 42

Gusset plate

Back 42

Metal or wood plates used to connect and strenghten the joints of 2 or more seperate componants

Front 43

Means of egress

Back 43

A continous unobstructed path of exit, path of exit

Front 44

Platform construction

Back 44

A method where floor assembly creTs a individual plateform that rest on foundation, walls of one story rest on it and build upon floor by floor

Front 45

Underpinning

Back 45

Process of strengthening a foundation.

Front 46

Strata

Back 46

Different and distinct layers of rock and soil.

Front 47

Mat foundation

Back 47

A large footing under an entire building, which distributes the buildings load over the entire area, it's also known as a raft foundation

Front 48

Fire partition

Back 48

A fire barrier that prevents the spread of fire between rooms on one level of a building.

Front 49

Column footing?

Back 49

Spread footing generally square or rectangular in plan, used to support a single column.

Front 50

Footing?

Back 50

The lowest, widest part of a foundation that distributes the load over a broad area of soil.

Front 51

Pretensioned

Back 51

Steel strands are stretched between anchors with concrete placed around the strands for support.

Front 52

Post tensioned

Back 52

Reinforcing steel in the concrete is tensioned after the concrete is hardened.

Front 53

Curing

Back 53

Proper drying of concrete to ensure maximum strength.

Front 54

Concrete is strong in _________, but weaker in tension

Back 54

Compression

Front 55

What are some of the advantages of concrete, name 3.

Back 55

Fire resistance, low cost relatively, versatile

Front 56

___________ makes up a large percentage of concrete

Back 56

Aggregate.

Front 57

________2 during the harding of concrete, heat is givin off by the hemical process of hydration

Back 57

Heat hydration

Front 58

Ideal temperature for curing concrete is between _________

Back 58

50- 70 degrees f

Front 59

Concrete strenght compressive strength varies between _______ & _________

Back 59

2500 psi 6000

Front 60

Primary function of placing reinforcing steel in concrete is to resist _______ forces.

Back 60

Tensil forces

Front 61

The of prestress7ng the cables are tensioned before concrete is poured

Back 61

Pretensioning

Front 62

What are the 2 test of concrete preformed to messure control, think moisture and strenght

Back 62

Slump, compression

Front 63

The single most important factor in determining the ultimate strenght of concrete is to determine the _____________

Back 63

Water to cement ratio

Front 64

List three different structural systems in steel that might be suitable for the roof of an athletic field house.

Back 64

Trusses, arches , tensile structures cables, castellated beams

Front 65

Explain the advantages and disadvantages of a steel building structure with respect to fire how can the disadvantages be overcome

Back 65

Steel is resistant to fire but softens the heat steel in case in concrete plaster brick can absorb the heat the advantages of the steel building are lighter stronger typically less expensive.

Front 66

How can you tell if your connection from a moment connection what is the role of each.

Back 66

Sure connection stops connection from sliding in all directions it resists the forced to take it apart. A moment connection is 10 or single bolt cannot move up or down be but it can rotate one cannot rotate without rotating another moment connections are used for overall rigidity of the building they create structural continuity between the members. The shear connection is only to resist shear force.

Front 67

Explain the designation W 21 X 68

Back 67

Wide flange 21 inches in depth and 68 pounds

Front 68

What is the difference between iron and steel what is the difference between wrought iron and cast iron.

Back 68

Iron element steel allied made of iron Steel is stronger than iron better tension and compression iron has 2% less carbon

Front 69

What is the slip critical connection

Back 69

Bolts are preloaded to an extent that friction between the adjoining faces of the seal members resist movement between the members

Front 70

Bolts in bearing type conditions are stressed primarily in? Well those in slip critical conditions are stressed in?

Back 70

Sheer, tension.

Front 71

What is camber?

Back 71

Chris lightly in an upward direction