Wood in Construction : Revisiting the Past to Answer the Future

on Mar 20, 2018 10:51:50 AM By | MIDASoft | 0 Comments | BUILDING ENGINEERING
  Around 3 billion of humans are currently living in urban parts of the world, and the number will likely increase to 75% of human population in 2040 (Green, 2012). It is safe to say that more buildings will decorate the skyline of metropolitan cities around the globe, with most of them being built out of either reinforced concrete or steel. While most people will feel comfortable and safe to stand inside of a concrete based structure, many environmentalists and scientists will disagree against the increase of concrete and steel production. Timber comes into the conversation for the most sustainable material, but the weaknesses are questioned by many. This article will cover the current advancement in timber technology and address the concern about constructing timber structures.
Read More

Development of Seismic Prevention: from Tribal Structures to High Rise Buildings

on Mar 20, 2018 10:49:01 AM By | MIDASoft | 0 Comments |
Earthquake has always been a problem to humans in designing a shelter, the first earthquake recorded by humans is 1831 BC in Xian China. This meant humans have designed structures against seismic forces since thousands of years ago (Reitherman, 2012). Up until now, seismic prevention techniques have been developed over the years due to different major earthquakes that hit many highly active seismic regions. To give a more understanding on different applications of earthquake resistance, this blog post will present three different structures from three different periods of time to show the progress of Earthquake Engineering.
Read More

Design of Working Platforms for Tracked Plant

on Mar 20, 2018 10:37:27 AM By | MIDASoft | 0 Comments | GEOTECHNICAL ENGINEERING
Introduction Working platforms are required for the support of tracked plant during operations to prevent failure and overturning. Tracked plants are all heavy duty, mobile, industrial machines in construction and civils that move using the mechanical rotation of tracks; these include crawler cranes, piling rigs etc. Large plant is regularly in use with weights in the region of 50 – 150 tonnes and thus most soils will not be able to bear this. Even if the plant is light and the soil is strong, its composition may vary and if ALL the soil below the track does not have the capacity to bear the pressure of the track equally then failure is imminent. The working platforms are therefore designed against these forces. Due to the complicated and varying nature of soil the design requires various considerations and assumptions. These have been found through rigorous experimentation by experts within the field, who have then developed formulae and constants. The compilation of the formulae and constants forms a standard. One standard used, is the BRE (Building Research Establishment Ltd.) BR 470. According to it, ‘Working platform is restricted to ground–supported working platforms, for tracked plant, constructed of granular material. No other type of working platform is considered. The working platform is taken as including not only the platform itself but also associated ramps and accesses.’  (BR 470, 2004).
Read More

Effective Reinforcement for Edge Restrained Concrete Wall

on Mar 19, 2018 6:06:05 PM By | MIDASoft | 0 Comments | BUILDING ENGINEERING
  Introduction  The current design code Eurocode2, BS EN 1992 regulates reinforcement details for crack width control in the restrained concrete members by taking up the crack force of the cross section. Although this concept gives straightforward results, its consistent application can lead to high reinforcement amount with increasing member thickness. Properly placed reinforcement in the reinforced concrete structure with adequate amounts will reduce the reinforcement amount and width of cracks of unsightly cracking.
Read More

Case Studies of Structures with a BREEAM Rating above 85 (Outstanding)

on Mar 19, 2018 6:00:04 PM By | MIDASoft | 0 Comments | BRIDGE ENGINEERING
  Launched in 1990, the Building Research Establishment Environmental Assessment Method (BREEAM) is the UK’s leading project infrastructure sustainability rating board. BREEAM rates the sustainability of structures based on a range (primarily 12) of environmentally friendly factors, these include and are not limited to; energy, waste, water, materials and land use. Each standard is rated according to a specified criterion, for example: relating to water ‘encourages sustainable water use in the operation of the building and its site. Issues in this section focus on identifying means of reducing potable water consumption (internal and external) over the lifetime of the building and minimising losses through leakage.’ (BREEAM, 2016)  The overall BREEAM rating is a make-up of all the standards and is divided into 6 ranks; Outstanding (≥85), Excellent (≥70), Very good (≥55), Good (≥45), Pass (≥30) and Unclassified (<30).  This blog will focus on a structure that is rated ‘Outstanding’. This rank only came in to place in 2008 to give an incentive to companies to aim higher. According to Tim Bevan (Principal Consultant BREAAM, BRE Global) ‘Many of those going for Outstanding already want to construct a highly sustainable building – that is their starting point and they tend to be very closely engaged in the process.’ (Building4Change, 2016).
Read More