Tall Buildings Flashcards

Flashcards about tall building erection methods and structural systems.

Bored Pile Drilling

A drilling method often used in constructing tall buildings.

Reverse Circulation Drill (RCD)

A drilling technique involving air injection and reverse circulation to remove cuttings.

Tremie Concrete

A method of placing concrete underwater using a pipe to prevent cement washout.

To eliminate the need for compaction.

Why is high workability (Slump) concrete desirable when placing concrete underwater?

Basement Top Down Construction

A construction technique where the basement is built before the superstructure.

Support

Walls provide ____ to the surrounding soil.

Secant Pile Walling

Pile walls consisting of primary and secondary piles.

Diaphragm Wall

A wall constructed by supporting the excavation with bentonite suspension and then concreting panels.

Excavation

Rock ____ may be necessary in basement construction.

Prefound Column

A steel column of the basement formed during foundation construction and surrounded by weak concrete.

(Profiled Steel Forms) Acts as a supporting element, a working platform, and remains in the structure.

Permanent Slab Formwork

Composite Slab

A slab composed of cast-in-place concrete and steel profiled sheeting.

Lateral stability, fast construction, and no propping/dismantling required.

What are the advantages of permanent formwork?

Structural Steelwork

A type of construction that utilizes beams and columns made of steel.

Tower Crane and Derrick

Equipment used in the construction of tall buildings for lifting materials.

Braced Frame

A structural system using diagonal members to resist lateral loads.

Box Structures (Core Wall/Tube)

Structures with perimeter columns and a central core to provide large, clear floor spaces.

Shear wall-frame Structures

Structures that combine shear walls and rigid frames for increased stiffness and strength.

Tubular Systems

Structural systems ideal for buildings exceeding 30 or 40 stories, offering greater strength and rigidity.

Frame-tube Systems

A tubular system where lateral resistance is provided by moment-resisting frames forming a tube around the building.

Shear Lag

Reduction of stress in interior flange columns compared to edge columns in a frame-tube system.

Tube-in-tube System

A structural system with inner and outer tubes to resist overturning forces and shear.

Braced Tube

A tubular system improved by adding diagonal bracing to the faces of the tube to eliminate shear lag.

Trussed Tube

A tubular system interconnecting all exterior columns to form a rigid box.