STEEL STRUCUTRE

Why Materials ???

Ashby,: Material Selection

in Mechanical Design

Engineering Materials

Taxonomy of Materials Selection

Ashby,: Material Selection

in Mechanical Design

Carbon and alloy steels

Carbon steels

• Classified as low, medium and high:

1. Low-carbon steel or mild steel, < 0.3%C, bolts, nuts and sheet plates.

2. Medium-carbon steel, 0.3% ~ 0.6%C, machinery, automotive and agricultural equipment.

3. High-carbon steel, > 0.60% C, springs, cutlery, cable.

Material Properties

Jenis Baja Tegangan putus tarik

Fu (MPa)

Tegangan leleh tarik

Fy (MPa)

BJ 34 340 210

BJ 37 370 240

BJ 41 410 250

BJ 50 500 290

BJ 52 520 360

BJ 55 550 410

HOW TO MAKE STEEL?

Benefits of Structural Steel

Some benefits associated with use of structural steel for owners are:

• Steel allows for reduced frame construction time and the ability to construct

in all seasons

• Steel makes large spans and bay sizes possible, providing more flexibility for

owners

• Steel is easier to modify and reinforce if architectural changes are made to a

facility over its life

• Steel is lightweight and can reduce foundation costs

• Steel is durable, long-lasting and recyclable (AISC 1999)

APPLICATIONS

• Industrial Buildings• Warehouses• Commercial Complexes• Showrooms• Offices• Schools• Indoor Stadiums• Outdoor Stadiums with canopies• Gas Stations• Bus Terminals, Parking Lots• Primary Health Centers• And many more…

Apartement

Power Plant

Industrial building

Industrial Building

Parking lots

Indoor Stadiums

Railway Station

Aircraft Hangars Metro Station

Wear house High rise Building

OTHER MAJOR COMPONENTS

CRANE BRACKETS & BEAMS

MEZZANINE FLOORS

STRUCTURAL PARTIONS

FASCIAS CANOPIES

Crane bracket

PELAKSANAAN PEKERJAAN KONSTRUKSI BAJA

coil

cutting welding

Roof & wallsheeting

fabrication

Erection