Modern Technologies in High Rise Building Construction

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Introduction
The construction of tall buildings has always been human desires despite the resources needed to
complete it. The construction of high rise employs the use of modern technologies to avoid
various challenges encountered in the construction industry for example high cost and the long
period of construction. These technologies include;
Mega truss seismic isolation
This type of technique is mostly applied in areas where an earthquake is greatly experienced
(Duncan, 2012, p. 76). The steel mega truss is used in supporting the center of the tall building
and it forms the roof of the mega columns below the belt truss. (Elleh, 2016, p. 186)
Fig 1: showing the use of mega truss seismic isolation structure
Raster Façade Precast Concrete System
To reduce the quantity of waste generated during construction, the cost of erecting the building,
increasing the standard of the building and reducing the opposing environmental impact in high
rise building can only be achieved by using the type of technique mentioned above as explained
by Mathew (2013). The advantages of this method include;

Advantages and Disadvantages of Raster Façade Precast Concrete construction
Advantages
 High building speed.
 Good quality control.
 Prestressing is easily done which can reduce the size and number of the structural
members.
 Rapid construction on site.
Disadvantages
 The error encountered is minimal.
 Difficult during connection.
 The usage of precast concrete cannot take place in two-way structural systems since the
size of the panel is limited.
 The building design will be affected by the repetition of forms.
 The lifting of the panels requires cranes.
 The flexibility of the building design is limited.
 Expensive and complex joints between the panels.
 Application of the panel on the site requires skilled workmanship.
 Regularly shaped buildings require economies of scale.
Automated welding system
According to Lynn (2011), the use of automated welding in the construction industry can provide
numerous gains in productivity and profitability during application. In semi-automatic welding,
the load is loaded manually by an operator into the welding fixture. Welding system may be

completely automated and can include robotic part, load and unload or have semi-automatic
capabilities. A fully automated welding can be equipped by robotic part, load and unload and a
mechanized programmable tool is used in automated welding to carry out both handling and
welding part, for example, gas metal arc welding (Holmes, 2007, p. 98).
The safety of workers is taken care of as well as the quality of work by using automated welding
system and it will enable construction operations to take place smoothly without interference.
The automation has various advantages in the construction industry which includes;
 It enhances quality and standardized products.
 It handles dangerous operations taken by employees
 It increases productivity and reduces the cost.
 It carries out labor tasks at hazardous locations, for instance, extensive height places.
 It promotes a good operating environment since workers are operating in a safe
environment.
Advantages of the automated welding system
 Better welding quality.
 Increased output is increased.
 Decreased scrap are decreased
 The cost of labor is reduced
 Materials are efficiently used.
 Safety among workers is improved since certain works are handled by robots.
 Shorter workweeks for labor and reduced factory lead times.