Structural Engineering Terms (PART 1)

For a force system to be in static equilibrium, the algebraic summation of forces is:

The maximum moment of a simply supported beam whose span length is L, in meter, carrying a uniformly distributed load of w in N/m, is:

Loads that are movable or replaceable on structure are known as:

A large beam supporting a smaller beam is called:

The modulus of elasticity of structural steel is:

What is the force developed in a 50mm x 50mm bar subjected to an axial tensile force of 100N?

It is one in which the lateral stiffness is less than 70% of the stiffness of the story above it.

These are inert material used in concrete which occupy more than 75% of the volume of the hardened concrete product

A cantilevered beam, 5m long is loaded with 10KN concentrated load at the free end. What is the maximum moment developed at the fixed end?

Steel elements such as wire, cables, bars, rods or strands of wires or a bundle of such elements used in pre-stressed concrete structures are called:

What method of pre-stressing in which tendons are tensioned before concrete is cast in place?

Two forces equal in magnitude but oppositely directed and produce moment, is called:

This refers to the substance other than aggregate, cement or water added in small quantity normally less than 5% of the weight cement, to alter the properties of the concrete mix or the hardened solid

What do you call the distance between supports?

The minimum bend diameter for 10mm Ǿ through 25mm Ǿ bars

Bars larger than ____mm shall not be bundles in beams.

Minimum concrete cover cast against and permanently exposed to earth

In ultimate strength design, the strength reduction factor Ǿ for shear and torsion

The minimum one way slab thickness for a BOTH ends continuous slab is

Deep simple span flexural members has overall depth to clear span ratio greater than

Before commencing the excavation work, the person making the excavation shall notify in writing the owner of the adjoining building not less than _____ days before such excavation is to be made.

The minimum distance that the toe of fill slope made to the site boundary line

When grillage footings of structural steel shapes are used on soils, they shall completely embedded in concrete. Concrete cover shall be at least ____mm on the bottom

The minimum nominal diameter of steel bolts when wood plates or sill shall be bolted to foundation wall in zone 4 seismic area in the Philippines

The maximum spacing of ties and spirals in a driven pre-cast concrete pile center to center

Aviation control towers fall to what type of occupancy?

The allowable deflection for any structural member loaded with live load only.

The allowable deflection for any structural member loaded with dead load and live load only.

Spacing for a lateral support for a beam shall not exceed _____ times the least width b of compression flange or face.

It is an isolated column of masonry or a bearing wall not bonded at the sides into associated masonry, when its horizontal dimension measured the right angles or the thickness does not exceed four times its thickness

Method of pre-stressing in which tendons are tensioned after concrete has hardened.

A material, other than aggregate, cementitious material or water, added in small quantities to the mix in order to produce some (desired) modifications, either to the properties of the mix or of the hardened product.

A simply supported beam, L meters long, carrying a uniformly distributed load of w in N/m, produces a maximum shear force of:

Structures that are subjected to transverse loads are called:

It states that Stress is proportional to Strain.

Members that are generally vertical, subjected to compressive loads, sometimes with bending moments, are called:

These are referred to permanent loads or unmovable loads.

A force system to be in static equilibrium, the algebraic sum of the forces along any direction:

The normal force exerted by a smooth horizontal surface towards a 100-lb block acting on it is

It is a twisting force that rotates or tends to rotate a shaft.

Loads that change position within the span of a beam in short amount of time. These loads are often exemplified by wheel loads.

It is synonym to bending stress.

These are used to connect shafts

Adherence between materials such as bricks/mortar, or piles of felt, of between felts and other elements of roof systems, which use bitumen or other materials as the cementing agent.

A mixture of aggregate, cement and water, with or without admixtures is called:

A wall that resists horizontal forces applied in the plane of the wall.

If the ratio of the short direction to the long direction of a slab is less than 0.5, then the slab is considered:

In ultimate strength design, the reduction factor Ǿ for bending is

The actual strain by which a concrete fails is 0.004. For safety purposes, the ACI code allows designers to use:

The minimum clear cover allowed by the code for slabs, not exposed to weather is:

A number 8(#8 steel reinforcing bar) has a diameter of:

What do you call those structures that are necessary for emergency operations subsequent to a natural disaster?

It is one in which the lateral stiffness is less than 70% of the stiffness of the story above or less than 80% of the average stiffness of the three stories above.

A structural system without a complete vertical load-carrying space frame.

The minimum size of fillet weld is:

The minimum size of fillet weld is:

A cantilever beam whose length is 4 m, loaded with a concentrated load 20 KN at the free end, produces a maximum bending moment of:

Two forces equal in magnitude and oppositely directed is called:

The minimum reinforcing steel for Spiral Columns allowed by the ACI Code is:

It is a point in a beam or column where there is no moment developed.

The ACI Code states that “bars larger than #11 should not be bundled in beams or girders”. This means that one should not bundle the steel bars if the diameter is larger than:

The steel ratio, ρ for spiral columns ranges from

The temperature bars are 10-mm diameter steel bars placed on top and perpendicular to the main reinforcement of:

Which is the correct factored load for Strength Design Method?

It is defined as the unit strength of a material

The stress developed when the applied load causes adjacent sections within a body to slide past each other.

It is the contact pressure developed between two bodies.

The stress induced as a result of restrained deformations due to changes in temperature.

The actual stress in a material under a given loading.

It is the maximum safe stress that a material can withstand