Advantages of HSS

Advantages of Hollow Structural Steel Sections (HSS)

why hss?

HSS has  many various  applications in different industries such as Construction, Oil and Gas, Municipal Engineering and many other industries.

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مقاطع HSS

HSS  stands for Hollow Structural Section that is a metal profile with a hollow cross section. Round, square and rectangular shapes of HSS  profiles  have  many  applications in various industries.

HSS profiles are being manufactured in 2 methods:

  • Traditional production method

(welding and cutting by manpower)

  • Modern industrial production method

(by fully automated and integrated machinery) Traditional production has the following shortcomings:

  • High percentage of workforce errors and thus less reliability
  • Increased production time
  • Increased required workforce
  • Increased Production expense
  • Considerable residual stress in welding zone

Modern industrial production method doesn’t have the above shortcomings.

Steel Advantages vs. Other Construction Materials

  1. Steel construction is naturally faster than concrete or masonry
  2. Due to its strength, structures built using steel are usually lighter than those made of other materials
  3. Steel is fully recyclable
  4. Due to its strength, construction using structural steel generally provides more room for open spaces, which is desirable in terms of architecture and aesthetics
  5. Due to higher strength, steel is known to provide the best strength-to-weight ratio compared to other construction material such as concrete or timber

HSS (produced by modern manufacturing) advantages vs. other structural steel sections

  1. Better strength-to-weight ratio
  2. Stronger in torsion
  3. Best for columns due to symmetry and material placement
  4. Better welding quality
  5. Useful in lightweight construction and better performance against earthquake forces
  6. Useful in space structures
  7. Better looking architectural exposure
  8. Decreased construction costs and being more economical
  9. Made to measure profile lengths
  10. Much easier composite construction by using concrete-filled
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• Comparing HSS with the Other Structures Economically

The following table indicates why using HSS,  leads to time saving,  higher quality  and lower costs.

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HSS AGAINST EARTHQUAKE

As indicated before one of the most important applications of HSS  is  in the  construction industry.  Generally, using  steel structure is more  beneficial than  other  structures and construction materials such as concrete, and with no doubt HSS  is one  of the  bests among them.  Having  two or more axes of symmetry and large radii of gyration, HSS profiles are the most suitable choices as columns or beam-columns of the main load resisting systems of structures.

The  tubular  form  of HSS  is  inherently   strong  and  efficient compared to  other  steel   profiles,  since   its  material   is  the farthest from  the  centroidal axes.  Furthermore, all section parts are considered “stiffened” according to AISC standards. Hence, HSS has  a better  strength to weight ratio, even  when compared to other structural sections. A lower weight naturally leads to easier construction, reduced earthquake induced loads reduced   erection   and   transportation   costs,   and   more economical   design   of   other   structural   parts   such   as foundations. This also  makes HSS  suitable for extension of existing buildings  without overloading their foundations. According to researches it is proven that concrete structures are the most earthquake prone. This arises from undeniable errors of workforces in built-up sections. Also the workshop errors in making steel structures are not negligible as there is high residual stress in the sections by this method resulting from several cutting and welding processes repeatedly which leads to structure vulnerability during earthquake.

 

HSS AGAINST EARTHQUAKE

Therefore, it is certainly essential to be more accurate in selecting resistant and reliable materials in many regions such as Iran which are exposed to earthquake hazards. HSS produced by modern industrial method is the safest and the most credible construction material against this natural disaster.

“For further information about structural connections and different  explanations in technical and  design instructions of HSS,   a  guidebook  compiled   by  our  engineering  team   is available at ATENA central  offic

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