VISUAL DICTIONARY XV Flashcards
What is the lowest division of a building or other construction partly or wholly below the surface of the ground, designed to support and anchor the superstructure and transmit its loads directly to the Earth?
FOUNDATION
What is a foundation system placed directly below the lowest part of a substructure and transferring building loads directly to the supporting soil by vertical pressure?
SHALLOW FOUNDATION
What is the part of a foundation bearing directly upon the supporting soil, set below the frostline and enlarge to distribute its load over a greater area?
FOOTING
What is the horizontal component of resistance developed by a soil mass against the horizontal movement of a vertical structure through the soil?
PASSIVE EARTH PRESSURE
What is the horizontal component of pressure that a soil mass exerts on a vertical retaining structure?
ACTIVE EARTH PRESSURE
What is the actual pressure developed between a footing and the supporting soil mass, equal to the quotient of the magnitude of the forces transmitted and the area of contact?
SOIL PRESSURE
CONTACT PRESSURE
What do you call the maximum unit pressure a foundation is permitted to impose vertically or laterally on a supporting soil mass?
ALLOWABLE BEARING PRESSURE
ALLOWABLE BEARING CAPACITY
ALLOWABLE SOIL PRESSURE
What is the gradual subsiding of a structure as the soil beneath its foundation consolidates under loading?
SETTLEMENT
What is the gradual reduction in the volume of a soil mass resulting from the application of a sustained load and an increase in compressive stress?
CONSOLIDATION
What do you call a reduction in volume of a soil mass under the action of a sustained load, due chiefly to a squeezing out of water from the voids within the mass and a transfer of the load from the soil water to the soil solids?
PRIMARY CONSOLIDATION
PRIMARY COMPRESSION
What do you call a reduction in volume of a soil mass under the action of a sustained load, due chiefly to adjustment of the internal structure of the soil mass after most of the load has been transferred from the soil water to the soil solids?
SECONDARY CONSOLIDATION
What is the relative movement of different parts of a structure caused by uneven settlement or failure of its foundation?
DIFFERENTIAL SETTLEMENT
What is the maximum depth at which soil is frozen or frost penetrates the ground?
FROSTLINE
What is an uplifting soil caused by the freezing of internal moisture?
FROST HEAVE
What is a softening of soil resulting from the thawing of frozen ground water?
FROST BOIL
What is a wall occurring below the floor nearest grade, designed to support an anchor the superstructure?
FOUNDATION WALL
What is a concrete slab placed over a dense or compacted base and supported directly by the ground, usually reinforced with welded wire fabric or a grid of reinforcing bars to control any cracking caused by drying shrinkage or thermal stresses?
GROUND SLAB
SLAB ON GRADE
What is a layer of coarse granular materials placed and compacted on undisturbed soil or prepared fill to prevent the capillary rise of moisture to a concrete ground slab ?
BASE COURSE
Refers to something that underlies or serves as a base or foundation
SUBSTRATUM
SUBSTRATE
What is a concrete footing extended laterally to distribute the foundation load over a wide enough area that the allowable bearing capacity of the supporting soil is not exceeded?
SPREAD FOOTING
What is the continuous spread footing of a foundation wall?
STRIP FOOTING
What is a single spread footing supporting a freestanding column or pier?
ISOLATED FOOTING
What is a reinforced concrete footing extended to support a row of columns?
CONTINUOUS FOOTING
What is a reinforced concrete beam supporting a superstructure at or near ground level and transferring the load to isolated footings, piers or piles?
GRADE BEAM
GROUND BEAM
What is a reinforced concrete footing connected to a tie beam to another footing in order to balance an asymmetrical imposed load, as the perimeter of a building site?
CANTILEVER FOOTING
STRAP FOOTING
What is a continuous or strip footing that changes levels in stages to accommodate a sloping site or bearing stratum?
STEPPED FOOTING
What is a reinforced concrete footing for a perimeter column or foundation wall extended to support an interior column load?
COMBINED FOOTING
What is a thick slab-like footing of reinforced concrete supporting a number of columns or an entire building?
MAT
What is a mat foundation reinforced by a grid of ribs above or below the slab ?
RIBBED MAT
What is a composite structure of reinforced concrete slabs and basement walls serving as a mat foundation?
CELLULAR MAT
What is a mat providing a footing on yielding soil, usually for an entire building, placed so that the weight of the displaced soil exceeds the weight of the construction?
RAFT
What is the framework of crossing beams for spreading heavy loads over large areas?
GRILLAGE/GRID
What is a foundation used in yielding soil, having for its footing a raft placed deep enough that the weight of the excavated soil is equal to or greater than the weight of the construction supported?
FLOATING FOUNDATION
What is the foundation system that extends down through unsuitable soil to transfer building loads to a more appropriate bearing stratum well below the superstructure?
DEEP FOUNDATION
What is a system of piles, pile caps and tie beams for transferring building loads down to a suitable bearing stratum, used especially when the soil mass directly below the construction is not suitable for the direct bearing of footings?
PILE FOUNDATION
What is a stratum of soil or rock on which a footing bears, or to which a building load is transferred by a pile or caisson?
BEARING STRATUM
What is a pile driven at a specified angle to the vertical in order to provide resistance against lateral forces?
BATTER PILE
What is the component of a pile hammer located just below the ram, that transfers the driving force to the pile head?
ANVIL
What is a cap for protecting a pile head as well as the pile hammer during a driving operation?
CUSHION
CUSHION BLOCK
CUSHION HEAD
What is a machine for driving piles, usually composed of a tall framework supporting machinery for lifting a pile in position before driving, a driving hammer, and vertical rails or leads for guiding the hammer?
PILE DRIVER
What is a steel band encircling the head of a timber pile to prevent it from splitting when driven?
DRIVE BAND
PILE RING
What is a long slender column of wood, steel, or reinforced concrete, driven or hammered vertically into the earth to form part of a foundation system?
PILE
what is a pile depending principally on the bearing resistance of soil or rock beneath its foot for support?
END-BEARING PILE
what is the maximum axial and lateral loads permitted on a pile, as determined by a dynamic pile formula, a static load test, or a geotechnical investigation of the foundation soil?
ALLOWABLE PILE LOAD
What is the deviation of a pile from its plan location or from the vertical, resulting in a reduction of its allowable load?
PILE ECCENTRICITY
What is the permitted deviation of a pile from the vertical, for which a reduction in allowable load is not required?
PILE TOLERANCE
What is a heavy steel pipe driven with the lower end either open or closed by a heavy steel plate or point and filled with concrete?
PIPE PILE
What is a steel H-section driven as a pile, sometimes encased in concrete to a point below the water table to prevent corrosion?
H-PILE
what is a log driven usually as a friction pile, often fitted with a steel shoe and a drive band to prevent it from splitting or shattering?
TIMBER PILE
What is a hard, pointed or rounded foot of a pile or caisson for piercing underlying soil?
SHOE
DRIVE SHOE
What is a precast, often prestressed concrete column, having a round, square, or polygonal section and sometimes an open core, driven into the earth by a pile driver until it meets the required resistance?
PRECAST CONCRETE PILE
What is a pile constructed of two materials, such as a timber pile having a concrete upper section to prevent the portion of the pile above the water table from deteriorating?
COMPOSITE PILE
What is a pile depending principally on the frictional resistance of the surrounding earth for support?
FRICTION PILE
What is the friction developed between the sides of a pile and the soil into which the pile is driven, limited by the adhesion of soil to the pile sides and the shear strength of the surrounding soil mass?
SKIN FRICTION
What is an additional load on a pile resulting from settling of fill, which tends to drag the pile downward into the soil?
NEGATIVE FRICTION
What do you call the zone in a loaded soil mass bounded by an arbitrarily selected isobar of stress, as from a single or number of friction piles?
PRESSURE BULB
what is any of several formulas by which the allowable axial load on a pile can be calculated from the energy required for a pile hammer to advance the pile foot a specified distance into the subsoil
DYNAMIC PILE FORMULA
what is a test for determining the allowable axial load on a single pile, usually a fraction of the load required to reach a yield point, a point of resistance, or a point of refusal
STATIC LOAD TEST
What is the point at which a pile load causes a specified net settlement after being applied continuously for a specified period of time?
POINT OF RESISTANCE
What is the point at which no additional settlement takes place after a pile has been loaded continuously for a specified period of time?
POINT OF REFUSAL
What is the point at which an increase in pile load produces a disproportionate increase in settlement?
YIELD POINT
What is a reinforced concrete slab or mat joining the heads of a cluster of piles to distribute the load from a column or grade beam equally among the piles?
PILE CAP
What is a reinforced concrete beam distributing the horizontal forces from an eccentrically loaded pile cap or spread footing to other pile caps or footings?
TIE BEAM
What is a pile constructed by placing concrete into a shaft in the ground?
CAST-IN-PLACE CONCRETE PILE
What is a concrete pile constructed by driving a steel pipe or casing into the ground until it meets the required resistance and then filling it with concrete?
CASED PILE
What is a cylindrical steel section, sometimes corrugated or tapered for increased stiffness, driven or dropped in place to serve as a form for a cast-in-place concrete pile?
CASING
What is a heavy steel tube or core that is inserted into a thin-walled casing to prevent it from collapsing in the driving process, and then withdrawn before concrete is placed in the casing?
MANDREL
what is a concrete pile constructed by driving a concrete plug into the ground along with a steel casing until it meets the required resistance, and then ramming concrete into place as the casing is withdrawn?
UNCASED PILE
what is a cast-in-place concrete pire having an enlarged foot to increase its bearing area and strengthen the bearing stratum by compression, formed by forcing concrete out at the bottom of the casing into the surrounding soil?
PEDESTAL PILE
What is a bulge cast or formed at the bottom of a cast-in-place concrete pile to enlarge its bearing area and strengthen the bearing stratum by compression?
BULB
What is a cast-in-place concrete foundation formed by boring with a large anger or excavating by hand a shaft in the earth to a suitable bearing stratum and filling the shaft with concrete?
PIER
What is a pier, esp. when the boring is 2 ft (610 mm) or larger in diameter to permit inspection of the bottom?
CAISSON
What is the base of a caisson enlarged to increase its bearing area?
BELL
What is a caisson that is drilled into a stratum of solid rock rather than belled?
SOCKETED CAISSON
What is a socketed caisson having a steel H-section core within a concrete-filled pipe casing?
ROCK CAISSON
what is a base for a footing in soft soil, made by compacting sand in a cavity left by a timber pile?
SAND PILE
what is a skeletal structure of relatively slender members designed to give shape and support to a bldg or other construction?
FRAME
What is a structural frame whose resistance to lateral forces is provided by diagonal or other types of bracing?
BRACED FRAME
What is a structural frame of linear members rigidly connected at their joints; applied loads produce axial, bending, and shear forces in all members of the frame since the rigid joints restrain the ends of the members from rotating freely?
RIGID FRAME
MOMENT-RESISTING FRAME
What is a rigid frame connected to its supports with fixed joints, more resistant to deflection than a hinged frame but also more sensitive to support settlements and thermal expansion and contraction?
FIXED FRAME
What is a rigid frame connected to its supports with pin joints, which prevents high bending stresses from developing by allowing the frame to rotate as a unit when strained by support settlements, and to flex slightly when stressed by changes in temperature?
HINGED FRAME
What do you call the lateral displacement produced in a rigid frame by lateral loads or asymetrical vertical loading?
SIDEWAY
What is a structural assembly of two rigid sections connected to each other and to its supports with pin joints?
THREE-HINGED FRAME
What is a bldg constructed with a steep triangular frame resting directly on a foundation?
A-FRAME
What do you call the junction of the top and either of the uprights of a bent?
KNEE
what is a braced or rigid frame designed to carry vertical and lateral loads transverse to the length of a framed structure?
BENT
What is a rigid frame of two columns and a beam defining a single bay?
PORTAL
SINGLE-BAY FRAME
What is a rigid frame having a continuous beam supported by and rigidly connected to three or more columns?
MULTIBAY FRAME
what is a framed beam structure having vertical web members rigidly connected to parallel top and bottom chords, considered not a true truss since its members are subject to nonaxial bending forces?
VIERENDEEL TRUSS
VIERENDEEL GIRDER
What is a girder supporting a transfer column?
TRANSFER GIRDER
What do you call a skeletal structure of parts fitted and joined together in order to support, define, or enclose?
FRAMEWORK
What is a system of construction utilizing a framework of columns and beams to transmit bldg loads down to the foundation?
SKELETON CONSTRUCTION
What is a floor or roof construction utilizing a framework of timber beams to support wood planks or decking?
PLANK-AND-BEAM CONSTRUCTION
What is a system of construction utilizing repetitive, closely spaced, and sheathed members of dimension lumber or light-gauge steel to form the structural elements of a bldg?
LIGHT FRAME CONSTRUCTION
What is a wall construction utilizing a framework of vertical posts and horizontal beams to carry floor and roof loads?
POST-AND-BEAM CONSTRUCTION
POST-AND-LINTEL CONSTRUCTION
what is a large beam in a structural frame that supports secondary beams or joists?
PRINCIPAL BEAM
PRIMARY BEAM
What is any beam that transmits its load to a primary beam?
SECONDARY BEAM
What is any beam that transmits its load to a secondary beam?
TERTIARY BEAM
What is a large principal beam designed to support concentrated loads at isolated points along its length?
GIRDER
Of or pertaining to a system of construction employing beams or lintels?
TRABEATED
Of or pertaining to a system of construction employing arches or arched forms?
ARCUATED
What is a system of construction employing a vertical structure of pressure-treated wood poles that are firmly embedded in the ground as a pier foundation?
POLE CONSTRUCTION
What do you call one of several pits or posts for supporting a structure above the surface of land or water?
STILT
What is a bldg frame employing a heavy, braced framework of solid girls mortised into solid posts the full height of the frame, with studs one story high filling the interstices?
BRACED FRAME
FULL FRAME
What is a horizontal timber connecting the posts of a braced frame at an intermediate level above the ground floor?
GIRT
What is a girt parallel to and level with the floor joists?
RAISED GIRT
FLUSH GIRT
What is a girl set below the floor joists it supports?
DROPPED GIRT
what is a heavy timber serving as a principal beam or girder?
SUMMER / SUMMERTREE
What is a summer supporting a wall over an opening?
BREASTSUMMER
BREAST BEAM
What is a summer supporting a wall over an opening?
BREASTSUMMER
BREAST BEAM
What is a crossbeam or a bay formed by cross beams?
TRAVE
What is a principal beam supporting the ends of two sets of floor joists?
BINDER / BINDING BEAM
what is a lantern or turret on the roof of a medieval bldg having slatted apertures for the escape of smoke and admission of air?
LOUVER
What is a material for covering a roof, such as straw, rushes, or palm leaves, fastened together so as to shed water and sometimes to provide thermal insulation?
THATCH
what do you call having a timber framework with the spaces filled with masonry or plaster?
HALF-TIMBER
What do you call a construction method wherein the framework of timbers is exposed?
OPEN-TIMBER
what is a room or apartment on the upper floor of a medieval English house?
SOLAR
SOLLAR
SOLLER
What is an upper story of a bldg projecting beyond the one below?
JETTY / JUTTY
what is a form of wall construction, consisting of wattles covered and plastered with day or mud?
WATTLE AND DAUB
WATTLE AND DAB
What is a framework of rods or poles interwoven with thin branches, twigs, and needs, used in the construction of walls and fences?
WATTLE
what is a major vertical division of a wall, esp. a nogged panel of half-timber construction?
PAN
What is one of a number of short wooden pieces inserted between the principal members of a half-timbered wall to strengthen the frame and retain the brick in fill?
NOG
what is a brick masonry used to fill the spaces between the members of a timber frame?
NOGGING