Fabrication, Erection and Hybrid Construction - Blog 16 - Yukta Yogeesh

09/October/2020

 

Hello all, this blog will be narrating the process of how Steel members are actually converted into a building structure on site after its cut, treated and coated i.e., Fabrication and Erection. 


Fabrication is the process of making the steel members better and functional by treating it and coating it with the required precision and quality. It can be done on site of erection or it can be done on a seperate site/ factory as per the requirements of particular temperature or humidity standards for quality work.  


Major details that has to be taken care of, while fabricating members are as follows:- 


  • Transportation issues 
  • Site Constraints 
  • Erection Issues 
  • Sequencing of Lifts
  • Waterproofing and Fireproofing 
  • Care in handling 


Erection is simply the assembling of different steel members on site to achieve the desired structure. It involves lifting and placing components into position and connecting them together. 


Erection Consideration should cater to the following details :-


  • The distance between the site of fabrication and site of erection. Less, the better. 
  • This corresponds to the loss in quality of members during transportation. 
  • The height of fitting the members with the available labor. 
  • The area in front of the structure that should accommodate the members. More, the better. 
  • This corresponds to storing the delivered members and space for working. 
  • Easily available and cheap equipment (or advanced) for erecting the members on site.  
  • Design and time - Simple and familiar the structure, faster the erection. 


Hybrid Construction 


The process of designing structures with a composition of different materials in a particular member is called hybrid construction. Here, the spotlight is on composition of Steel with wood and glass. 


Material Study plays a major role while designing hybrid structures. This study should include the following particulars:- 


  • Dead load and live load 
  • Wind load and height levels
  • Solar Gain of the material 
  • Energy Consumption and Cooling load 
  • Movement 
  • Filler material 


In the case of Steel, Wood and Glass, the major factors that govern other factors are as follows:-  


  • On one side, Steel is tensile, strong, predictable and is manufactured accordingly. It cannot resist temperature and humidity. 
  • On the other hand, Wood is compressive, weak and vulnerable. It is natural. It cannot resist termites and humidity. 
  • In the case of Glass, it is for visual aspect, transparency. It should have minimum connections and the importance is give to alignment and finish. 


Functions and Applications of Hybrid Construction 


  • Wind bracing - Repetitive units at regular intervals 
  • For Structural Skeletal Sections that supports the building. 
  • Can be useful in trusses and Cable system.
  • It can be a major part in Interstitial Support system. 


The different types of Connections used to connect different materials despite different thicknesses and character are as follows :- 


  • Spider bracket
  • Single bracket 
  • Angle bracket 
  • Clamping devices 
  • Clipping devices 
  • Steel cables 
Some examples for Hybrid Connections are as follows:- 



Yukta Yogeesh 



Comments

Post a Comment

Popular posts from this blog

Steel Erection, Fabrication and Hybrid construction -Blog 16

Image
This blog is about how the steel sections are transported to the site, the issues involved with transportation, erection and fabrication along with the onsite constrains. TRANSPORTATION: The steel sections have to transported from the manufacturing site to the fabrication site and this becomes a tough task due to their size. Often large pieces cannot be transported in a single part, they are split or divided and shipped as two separate pieces or even as one piece to avoid damage or scratches. Temporary connections are made on the pieces to avoid damage and to keep the parts in place during transportation.     These parts are not transported in normal vehicles but require long trail vehicles to fit their length and size which again becomes a difficult task to turn around the corners of the road and at junctions     FABRICATION & ON SITE CONSTRAINS: Fabrication of steel on sites which are along the main road or at the corner site is very hectic as there is very...
Read more

BLOG-16 FABRICATION, ERECTION AND HYBRID STRUCTURES

Image
  FABRICATION: The process of  steel fabrication  involves grinding, welding, cutting, bending, drilling, punching, burning or melting and other general crafting methods using various high-quality tools and CNC equipment. ERECTION LIFTING, POSITIONING AND PLACING OF STEEL MEMBERS IN A STRUCTURE  Once the member(s) are lifted and placed in the required place, with the help of temporary supports and equipment, they are fastened and fixed, depending on the nature of connection.  Erections may be achieved by two techniques such as MEWP(Mobile Elevating Work Platforms) by Mobile crane and Tower cranes. HYBRID STRUCTURES Hybrid structures are structures built with composite materials a combination of different materials with steel. A common  hybrid system  consists of hollow core slabs together with steel or cast-in-situ concrete frames                       EXAMPLE STEEL WITH TIMBER     I...
Read more

STEEL , ALLOYS AND THEIR COMPARISON

Image
BLOG- 8                                     STEEL , ALLOYS AND THEIR COMPARISON                                                               STEEL AND ALLOYS                                               An alloy is a blend consisting of metal and other elements. Alloys are generally made for achieving properties like greater strength or resistance to corrosion. Steel is an alloy of iron. It mainly consists of iron with some small amounts of carbon. Definition ALLOY :      A homogeneous mixture of a metal with other types of elements                       ...
Read more