BEAM ANALYSIS

UNIVERSITY OF ASIA PACIFIC

WHAT IS BEAM ?

A structural member which is long when compared with its lateral dimensions ,subjected to transverse forces so applied as to induce bending of the member in an axial plane, is called a beam.

Construction Beam Types,

Lumber Beams

Beams used in wooden structures and most often in homes are wooden construction beams, which can hold various amounts of weight in the house based upon the type of wood the beam is made from. A floor joist is the simplest type of wooden beam, holding two sections of floor together in a room or between two rooms. Hemlock and Douglas Fir lumber beams are used for ceilings of homes, each being able to hold different amounts of weight so that the structure is more sturdy. Laminated wood beams also add strength to the overall structure of a home or building as well.

Iron Construction BeamsIron beams are large heavy types of beams which maintain their strength though also have the ability to flex due to weight. Bridges are often made out of iron beams, as they must support different weights of cars and other vehicles driving over them or sitting on them for extended periods of time. Iron beams are also used in the construction of ships, due to their strength and because they are also relative flexibility. These iron beams can also be curved to support weight and also create unique architectural designs, which are both attractive and structurally sound.

Steel construction beams are the strongest beams you can buy and build things with, allowing you more distance between each beam in a structure as it can hold more weight. These beams are relatively heavy and must connect to other pieces of steel in the structure itself or cement in the ground so that it is stable. New, incredibly strong composites of steel are constantly being created and produced, allowing new skyscrapers which are constructed and both bridges and ships to be stronger then ever before. However, steel beams can also be used in the foundation of homes, adding an industrial look and making the home rock solid.

Steel Construction Beams

IMAGEWORKERS WORKING ON BEAM WORKERS BALANCING ON

STEEL BEAM

RCC beam construction is of two types

. Singly reinforced beam

. Doubly reinforced beam

A singly reinforced beam is a beam provided with longitudinal reinforcement in the tension zone only.

Singly reinforced beam

Doubly reinforced beam

• Beams reinforced with steel in compression and tension zones are called doubly reinforced beams. This type of beam will be found necessary when due to head room consideration or architectural consideration the depth of the beam is restricted.

• The beam with its limited depth, if reinforced on the tension side only, may not have enough moment of resistance, to resist the bending moment.

BEAM REINFORCEMENT

CORRECT OR INCORRECT

BEAM Construction Method

D-TEC PC-BEAM Construction Method is the mixed construction technique of building with the compound structure beams which combines the beams of the prestressed concrete structures and the beams of steel-frame. In comparison with current prestressed concrete (PC) structure, it reduces its weight of the beam member so it provides larger openings and extensive space. It is a structural system suitable for the commercial facilities such as a large logistic facility, an office and a store.

Internally, beams experience compressive, tensile and shear stresses as a result of the loads applied to them. Typically, under gravity loads, the original length of the beam is slightly reduced to enclose a smaller radius arc at the top of the beam, resulting in compression, while the same original beam length at the bottom of the beam is slightly stretched to enclose a larger radius arc, and so is under tension. The same original length of the middle of the beam, generally halfway between the top and bottom, is the same as the radial arc of bending, and so it is under neither compression nor tension, and defines the neutral axis (dotted line in the beam figure).

STRESS IN BEAMS

BEAM FORMWORK

Steel formwork is today's most multi-functional formwork system due to the following reasons :

Stiffeners are built into the steel plate at vertical and horizontal side to prevent formwork from any deformation or cracking.

Drilling holes at 150 intervals provides secure and easy connection with special fasteners.Steel formwork can be erected by unskilled labor in a very short time.Made from 3mm steel plate, steel formwork can be reused for more than 10 times with low damage.

BEAM FORMWORK

I-BEAM

Structural engineers are responsible for steel detailing design and analysis. Structural detailing design is one of the primarily important parts in structural engineering. Structural engineering is used in large number of structural steel detailing and industrial areas. Structural engineering needs require huge amount of attention and planning. Structural Engineers deeply view the position and create a strategy for strong and sufficient steel detailing structures to resist pressures and other external forces.

Importance of Structural Engineer for Structural Detailing Design

FUTURE CONSTRUCTION

By. KAMRUZZAMAN BAPPY

INSPIRATIONAL PEOPLESIR TAREK KHONDOKAR*

THE END