7 Important Requirements that the Foundation System should Meet

The foundation is a supporting member of the structure which ultimately transfer loads from the Building’s walls or columns to the Earth. A foundation is the part of the building that is in direct contact with the ground. The main purpose of the foundation is to transfer all loads of the building to the earth.

Must Read: 10 Important Criteria to Choose the Right Foundation for your House

The foundation basically holds the structure up so it will not sink in the supporting ground. Foundation holds the structure so it will not be blown away by strong winds like tornadoes. The foundation selection will also depend on the structural system and type of the structure. The life of the structure can never be more than the importance life of foundation.

The foundation of the structure must be safe against the four major eventuality:

  • Sliding
  • Overturning
  • Sinking or settlement
  • Differential settlement

The foundation systems are required to meet the following important requirements:-

01. The basic requirement for any structure regarding its load resisting capacity is that the structure shall be constructed in such a way that the combined dead loads, live loads, horizontal loads like earthquake and wind load can be resisted carried and transmitted to the ground safely without any structural damage, deflection and distortion.

02. Foundation should be taken sufficient in deep into the ground so that the structure is not affected by ground movement such as swelling. Shrinking, freezing. The landslide also should not affect the stability of the building. The structure should be safe against the damage and distress.

03. Foundation base should be rigid so that the differential settlement are minimised, especially in a case when superimposed loads are not evenly distributed over the foundation.

04. Foundation should also be so located that its performance is not affected due to any unexpected future influence like earthquake and overloading.

05. Foundations must be designed to resist the ultimate loading cases combination to resist both overturning and sliding.

06. Foundation should resist attack from chemicals in soil. Groundwater and soil may contain different types of chemicals which are harmful to the foundation concrete, the most aggressive of which are sulphates. Sulphate attack can usually be offset by using sulphate resisting cement, but even this will not be a perfect alternative to the problem unless sufficient care is taken in placing the concrete, by vibrating and curing.

07. Foundation should be taken deep enough to resist the overturning, though soil bearing capacity is good at sufficient depth. And also deep enough so as to be free from swelling and swelling.

Also Read: All the Basic things you need to know about Foundation

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Comments (2)

    1. Dear Kholisile K Mokati

      Thank you for contacting gharpedia & raising a query!

      There are various types of footings which you can use to make the foundation of the home. But foundation needs to be designed first.

      We have already discussed;

      Various Types of Footings for Your House

      The Foundation in Black Cotton Soil/Expansive Soil Mystery Revealed

      What Should be the Minimum Depth of Foundation for New Home?

      You can also go through different articles on the foundation on our site.

      Design of footing depends on the various factors i.e. type of building you want to build, numbers of stories you are planning to build, type of design loads, type of sub-strata or base-soil of that area, water table level of that area, type of adjoining structures, type of region, and other local requirements. Based on the above factors a structural engineer evaluates the size and depth of foundation.

      Furthermore, it is very important to check the shuttering/formwork and reinforcement of footing before you carry out the concrete pouring work. Read our checking guide here.

      Things to Check Before Concreting Footings

      It is advisable to contact a structural engineer if you are planning to construct a house. They will charge you a little cost for a service, but in the long run, it will save the value of the structural repair and increase the life of the structure.

      Hope this will be helpful to you. If you still have any doubts, you can reach us anytime.

      Thank You!

      Gharpedia Team

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