RSJ steel beam size for 3m, 4m, 5m, 6m, 7m, 8m, 9m and 10m span | RSJ beam size for 3m span | RSJ beam size for 4m span | RSJ beam size for 5m span | RSJ beam size for 6m span | RSJ beam size for 7m span | RSJ beam size for 8m span | RSJ beam size for 9m span | RSJ beam size for 10m span | Universal beam size according to span | ISMB, i beam, H beam, UB’s, rolled steel joist, RSJ and W beam | what size RSJ for for 3m, 4m, 5m, 6m, 7m, 8m, 9m and 10m span.
There is different shape and size of A rolled steel joist (RSJ), hot rolled Steel section such as H beam (universal column), I beam (universal beam), angles, channels and etc are used in construction project such as field of agriculture construction, industrial construction, multi storey building, different factories and residential projects.
Today is the demand of steel structure in the field of construction projects that replace the depending on reinforced cement concrete, their higher strength, less time consuming, make it ideal for residential project in short duration.
RSJs are produced by being rolled from a single piece of structural steel of grade S275JR grade to maintain structural integrity and are used to support walls and floors when making an opening in a load bearing wall or when building an extension. These steel beams have good machinability, corrosion resistance, and weldability properties.
The univerasal RSJ steel beam sizes represented by their height of the web in mm x width of the flange in mm x the weight per metre in kilograms. When you measure the height and width it look like as capital I, hence also being known as I beam. The thickness of the web and flange can varies.
The web of RSJ universal steel beam helps to resists shear forces, whilst the flanges resist the larger part of the bending moment placed on the RSJ beam. They are also used to make retaining walls in landscape gardening with wooden sleepers placed between them, and to construct the frames of modern office blocks and industrial warehouses.
RSJ steel beam also known as Universal Beams, I-beam, UBs, I section, RSJs, rsj beams, h beam, steel lintels steel girder and load bearing steels. Universal beams are essential for any major support or structural integrity in building construction. These steel beams are hard-wearing and strong.
RSJ or Rolled steel joists are very popular in the building trade in UK, US, Australia, Canada and others countries used mainly for steel lintels. Small medium and large scale structural steel projects all use a variety of steel sections such as I beams, H columns and pfc channels.
In this article you know about RSJ steel beam size for 3m, 4m, 5m, 6m, 7m, 8m, 9m and 10m span according to thumb rule for the construction of house that will help you in better understanding and to figure out or estimate of RSJ beam size and their depth and help in important for you to use the right size.
RSJ Steel beam size depend on various factors, how high is the building or projects?, what is the dead and live load of structure, grade of Steel used, span between the two column and others factors.
Variation among the universal beam include material, length of the web and depth of flanges. Different weight loads and area will require different measurement on the beam, the longer the web, the more force it can stand up and down, the wider of flange, the more side to side movement the Beam can withstand. Wide flange beam are also known as W- beam.
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RSJ steel beam size for 3m, 4m, 5m, 6m, 7m, 8m, 9m and 10m span
As per general experience and thumb rule, to calculate the required and necessary depth of beam, divide the span length in mm by 18 to 20 such as span length in mm/ depth = 18 to 20 for primary beam and for secondary beam span length to depth ratio is about 15 to 18. The width of this beam would be 1/3 and 1/2 of the depth. The dimensions of a Girder would be same, but the flange would be thicker. A beam overhang can be maximum of 3/8 of the supported span.
RSJ steel span rule of thumb:- depth of the RSJ are in the range of 1/2″ for each foot spanp, represented as L/24. Thumb rule for depth of roof beam or roof joist = 0.5 × span in inches, depth of floor beam or floor joist = 0.6 × span in inches and depth of composite beam = 0.55 × span in inches.
RSJ beam size for 3m span:- as per general thumb rule, for 3m span size of RSJ beam or universal beam or w beam or I beam or UB’s or hot rolled section or Rolled steel section (rsj) should be UB 152×89×16 or w6 used for residential building or projects or construction in which depth of section of beam is 152mm and width of flange or width of beam is 89mm and 16 is weight in kg per meter. This is standard and most suitable size of RSJ beam used for 3m span under normal load condition.
RSJ beam size for 4m span:- as per general thumb rule, for 4m span size of RSJ beam or universal beam or w beam or I beam or UB’s or hot rolled section or Rolled steel section (rsj) should be UB 178×102×19 or w7 used for residential building or projects or construction in which depth of section of beam is 178mm and width of flange or width of beam is 102mm and 19 is weight in kg per meter. This is standard and most suitable size of RSJ beam used for 4m span under normal load condition.
RSJ beam size for 5m span:– as per general thumb rule, for 5m span size of RSJ beam or universal beam or w beam or I beam or UB’s or hot rolled section or Rolled steel section (rsj) should be UB 203×102×23 or W8 used for residential building or projects or construction in which depth of section of beam is 203mm and width of flange or width of beam is 102mm and 23 is weight in kg per meter. This is standard and most suitable size of RSJ beam used for 5m span under normal load condition.
RSJ beam size for 6m span:- as per general thumb rule, for 6m span size of RSJ beam or universal beam or w beam or I beam or UB’s or hot rolled section or Rolled steel section (rsj) should be UB 254×102×25 or W10 used for residential building or projects or construction in which depth of section of beam is 254mm and width of flange or width of beam is 102mm and 25 is weight in kg per meter. This is standard and most suitable size of RSJ beam used for 6m span under normal load condition.
RSJ beam size for 7m span:- as per general thumb rule, for 7m span size of RSJ beam or universal beam or w beam or I beam or UB’s or hot rolled section or Rolled steel section (rsj) should be UB 305×102×28 or W12 used for residential building or projects or construction in which depth of section of beam is 305mm and width of flange or width of beam is 102mm and 28 is weight in kg per meter. This is standard and most suitable size of RSJ beam used for 7m span under normal load condition.
RSJ beam size for 8m span:- as per general thumb rule, for 8m span size of RSJ beam or universal beam or w beam or I beam or UB’s or hot rolled section or Rolled steel section (rsj) should be UB 356×127×33 or W14 used for residential building or projects or construction in which depth of section of beam is 356mm and width of flange or width of beam is 127mm and 33 is weight in kg per meter. This is standard and most suitable size of RSJ beam used for 8m span under normal load condition.
RSJ beam size for 9m span:- as per general thumb rule, for 9m span size of RSJ beam or universal beam or w beam or I beam or UB’s or hot rolled section or Rolled steel section (rsj) should be UB 406×140×46 or W16 used for residential building or projects or construction in which depth of section of beam is 406mm and width of flange or width of beam is 140mm and 46 is weight in kg per meter. This is standard and most suitable size of RSJ beam used for 9m span under normal load condition.
RSJ beam size for 10m span:- as per general thumb rule, for 9m span size of RSJ beam or universal beam or w beam or I beam or UB’s or hot rolled section or Rolled steel section (rsj) should be UB 406×178×54 or W16 used for residential building or projects or construction in which depth of section of beam is 406mm and width of flange or width of beam is 178mm and 54 is weight in kg per meter. This is standard and most suitable size of RSJ beam used for 10m span under normal load condition.
How much does a 3m RSJ weigh:- one may often ask “how heavy is a 3m RSJ”, best suitable for 3m span, a 152×89 size of Rolled steel section or RSJ can weigh around 16 kg per meter. So, for 3m length 16×3 = 48kg. Thus, 3 meters of a 152×89 mm size of RSJ can weigh about 48kg for spanning upto 3m length.
How much does a 4m RSJ weigh:- one may often ask “how heavy is a 4m RSJ”, best suitable for 4m span, a 178×102 size of Rolled steel section or RSJ can weigh around 19 kg per meter. So, for 4m length 19×4 = 76kg. Thus, 4 meters of a 178×102 mm size of RSJ can weigh about 76kg for spanning upto 4m length.
How much does a 5m RSJ weigh:- one may often ask “how heavy is a 5m RSJ”, best suitable for 5m span, a 203×102 size of Rolled steel section or RSJ can weigh around 23 kg per meter. So, for 5m length 23×5 =115 kg. Thus, 5 meters of a 203×102 mm size of RSJ can weigh about 115kg for spanning upto 5m length.
How much does a 6m RSJ weigh:- one may often ask “how heavy is a 6m RSJ”, best suitable for 6m span, a 254×102 size of Rolled steel section or RSJ can weigh around 25 kg per meter. So, for 6m length 25×6 =150 kg. Thus, 6 meters of a 254×102 mm size of RSJ can weigh about 150kg for spanning upto 6m length.
How much does a 7m RSJ weigh:- one may often ask “how heavy is a 7m RSJ”, best suitable for 7m span, a 305×102 size of Rolled steel section or RSJ can weigh around 28 kg per meter. So, for 7m length 28×7 =196 kg. Thus, 7 meters of a 305×102 mm size of RSJ can weigh about 196kg for spanning upto 7m length.
Conclusions:-
As per thumb rule, for a 3 meter span you will need 152×89 RSJ steel beam, for 4m span – 178 × 102, for 5m span – 203 × 102, for 6m span – 254 × 102, for 8m span – 356 × 127 and for 10 meter span you will need 406×140 RSJ steel beam.
Disclaimer: All the given Steel beam size are based on thumb rule and it can be used for general knowledge purpose, do not use it for professional because actual size of steel beam based on steel design structure
