NBR 6122 PDF Download 2019: What You Need to Know
Introduction
If you are involved in the design and construction of foundations for civil engineering structures, you need to be familiar with the Brazilian standard NBR 6122. This standard specifies the requirements and procedures for geotechnical investigations, load calculations, safety factors, foundation types, performance criteria, and technical evaluation of foundation projects.
nbr 6122 pdf download 2019
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In this article, we will give you an overview of the latest version of NBR 6122, which was published in 2019. We will also compare it with the previous versions and highlight the main changes and updates. Finally, we will provide you with some practical tips on how to download NBR 6122 PDF 2019 for free or for a reasonable price.
What is NBR 6122?
NBR 6122 is the acronym for Norma Brasileira (Brazilian Standard) Projeto e execução de fundações (Design and construction of foundations). It is a technical document that establishes the rules and guidelines for the planning, execution, and control of foundation works in Brazil.
NBR 6122 was first published in 1960 by the Associação Brasileira de Normas Técnicas (ABNT), which is the national body responsible for standardization in Brazil. Since then, it has been revised several times to incorporate new technologies, methods, and knowledge in the field of geotechnical engineering. The current version, NBR 6122:2019, was published on September 30, 2019, and replaced the previous version, NBR 6122:2010.
Why is NBR 6122 important?
NBR 6122 is important because it provides a common framework and language for the design and construction of foundations in Brazil. It helps to ensure the quality, safety, durability, and efficiency of foundation works, as well as to prevent failures, damages, and disputes.
NBR 6122 is also important because it reflects the state-of-the-art knowledge and best practices in geotechnical engineering. It incorporates the latest research findings, technical innovations, and international standards in the field. It also addresses the specific characteristics and challenges of the Brazilian soil conditions, such as expansive, collapsible, residual, or tropical soils.
Moreover, NBR 6122 is important because it is mandatory for all foundation projects in Brazil. It is a legal requirement that must be followed by engineers, contractors, consultants, owners, public authorities, and other stakeholders involved in foundation works. Failure to comply with NBR 6122 can result in legal sanctions, penalties, or liabilities.
How to download NBR 6122 PDF 2019?
If you want to download NBR 6122 PDF 2019, you have two main options: you can either buy it from the official ABNT website or you can search for free or cheaper alternatives online.
The official ABNT website offers the option to buy NBR 6122 PDF 2019 for R$285.00 (about US$54.00). This option guarantees that you will get the original and updated version of the standard, as well as access to other ABNT services and benefits. However, this option may be too expensive or inconvenient for some users who only need the standard for a specific purpose or a limited time.
The alternative option is to look for free or cheaper sources of NBR 6122 PDF 2019 online. There are many websites, blogs, forums, and social media platforms that offer links or files to download NBR 6122 PDF 2019 for free or for a lower price. However, this option has some risks and drawbacks, such as:
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The quality and authenticity of the downloaded file may not be guaranteed. It may be incomplete, outdated, corrupted, or modified.
The download process may be slow, unreliable, or unsafe. It may expose your device to viruses, malware, or phishing attacks.
The download may violate the intellectual property rights of ABNT or other authors. It may be illegal, unethical, or disrespectful to the work of the standardization committee.
Therefore, we recommend that you weigh the pros and cons of each option carefully before deciding how to download NBR 6122 PDF 2019. You should also consider your needs, budget, and preferences, as well as the implications and consequences of your choice.
Main Content
Overview of NBR 6122:2019
NBR 6122:2019 is the most recent and comprehensive version of the Brazilian standard for design and construction of foundations. It consists of 77 pages divided into nine sections and four annexes. It covers all aspects of foundation works, from geotechnical investigations to performance evaluation. Here is a brief summary of each section and annex:
Scope and objectives
This section defines the scope and objectives of NBR 6122:2019. It states that the standard applies to all types of foundations for civil engineering structures, such as buildings, bridges, dams, tunnels, pipelines, etc. It also states that the standard aims to provide technical criteria and guidelines for the design and execution of foundation works in Brazil.
Terms and definitions
This section provides the terms and definitions used in NBR 6122:2019. It includes more than 100 terms related to geotechnical engineering, foundation engineering, soil mechanics, rock mechanics, structural engineering, etc. Some examples are: bearing capacity, settlement, pile load test, soil profile, etc.
Geotechnical investigations
This section specifies the requirements and procedures for geotechnical investigations for foundation projects. It covers topics such as: planning and scope of investigations, field and laboratory tests, soil and rock classification, geotechnical reports, etc. It also provides tables and charts for soil parameters and correlations.
Loads and safety factors
This section defines the loads and safety factors for foundation design. It covers topics such as: load combinations, load factors, serviceability limit states (SLS), ultimate limit states (ULS), partial safety factors (PSF), global safety factors (GSF), etc. It also provides tables and formulas for load calculations.
Shallow and deep foundations
This section describes the types and characteristics of shallow and deep foundations. It covers topics such as: shallow foundations (isolated footings, strip footings, mat foundations, raft foundations, etc.), deep foundations (piles, caissons, micropiles, etc.), foundation elements (base, shaft, toe, head, etc.), foundation systems (single, group, block, etc.), etc. It also provides tables and charts for foundation dimensions and capacities.
Performance and evaluation
This section establishes the performance criteria and evaluation methods for foundation works. It covers topics such as: serviceability and ultimate limit states, allowable settlements and deformations, bearing capacity and stability, load transfer and distribution, foundation tests and monitoring, etc. It also provides tables and formulas for performance analysis.
Comparison with previous versions of NBR 6122
NBR 6122:2019 is the result of a long and complex process of revision and update of the previous versions of the standard. It incorporates the feedback and suggestions from the technical community, as well as the advances and challenges in the field of geotechnical engineering. Here is a brief comparison of NBR 6122:2019 with the previous versions:
Main changes and updates
Some of the main changes and updates introduced by NBR 6122:2019 are:
The inclusion of new terms and definitions, such as residual soil, tropical soil, expansive soil, collapsible soil, etc.
The revision and expansion of the geotechnical investigation section, with more details on field and laboratory tests, soil and rock classification, geotechnical reports, etc.
The adoption of the limit state design (LSD) approach for load calculations and safety factors, instead of the allowable stress design (ASD) approach used in the previous versions.
The introduction of new types and categories of foundations, such as micropiles, helical piles, jet grouting columns, etc.
The incorporation of new methods and criteria for foundation design and analysis, such as load-displacement curves, pile-soil interaction models, pile group efficiency factors, etc.
The update and refinement of the performance and evaluation section, with more emphasis on serviceability limit states, settlement control, foundation tests and monitoring, etc.
Advantages and disadvantages
Some of the advantages and disadvantages of NBR 6122:2019 are:
The advantages are that it provides a more comprehensive, modern, and consistent standard for foundation works in Brazil. It reflects the current knowledge and best practices in geotechnical engineering. It also addresses the specific characteristics and challenges of the Brazilian soil conditions.
The disadvantages are that it may require more time, effort, and resources to implement and comply with. It may also generate some confusion or resistance among some users who are used to the previous versions. It may also have some gaps or inconsistencies that need to be clarified or corrected in future revisions.
Practical implications and recommendations
Some of the practical implications and recommendations for using NBR 6122:2019 are:
The users should familiarize themselves with the new terms, definitions, and concepts introduced by NBR 6122:2019. They should also review and update their existing foundation projects according to the new requirements and procedures.
The users should take advantage of the new types and categories of foundations offered by NBR 6122:2019. They should also explore the new methods and criteria for foundation design and analysis. They should also perform more rigorous and comprehensive geotechnical investigations and foundation tests.
The users should be aware of the potential risks and challenges associated with NBR 6122:2019. They should also seek professional guidance and support from qualified engineers, consultants, or experts in geotechnical engineering. They should also follow the ethical and legal principles of engineering practice.
Conclusion
NBR 6122 is the Brazilian standard for design and construction of foundations. It is a technical document that provides the rules and guidelines for the planning, execution, and control of foundation works in Brazil. It is mandatory for all foundation projects in Brazil.
NBR 6122:2019 is the latest and most comprehensive version of the standard. It was published in 2019 and replaced the previous version, NBR 6122:2010. It incorporates the feedback and suggestions from the technical community, as well as the advances and challenges in the field of geotechnical engineering. It also addresses the specific characteristics and challenges of the Brazilian soil conditions.
NBR 6122:2019 has many changes and updates compared to the previous versions. It introduces new terms and definitions, revises and expands the geotechnical investigation section, adopts the limit state design approach, introduces new types and categories of foundations, incorporates new methods and criteria for foundation design and analysis, and updates and refines the performance and evaluation section.
NBR 6122:2019 has many advantages and disadvantages. It provides a more comprehensive, modern, and consistent standard for foundation works in Brazil. It reflects the current knowledge and best practices in geotechnical engineering. However, it may require more time, effort, and resources to implement and comply with. It may also generate some confusion or resistance among some users who are used to the previous versions. It may also have some gaps or inconsistencies that need to be clarified or corrected in future revisions.
NBR 6122:2019 has many practical implications and recommendations for users. They should familiarize themselves with the new terms, definitions, and concepts introduced by NBR 6122:2019. They should also review and update their existing foundation projects according to the new requirements and procedures. They should also take advantage of the new types and categories of foundations offered by NBR 6122:2019. They should also explore the new methods and criteria for foundation design and analysis. They should also perform more rigorous and comprehensive geotechnical investigations and foundation tests. They should also be aware of the potential risks and challenges associated with NBR 6122:2019. They should also seek professional guidance and support from qualified engineers, consultants, or experts in geotechnical engineering. They should also follow the ethical and legal principles of engineering practice.
If you want to download NBR 6122 PDF 2019, you have two main options: you can either buy it from the official ABNT website or you can search for free or cheaper alternatives online. However, you should weigh the pros and cons of each option carefully before deciding how to download NBR 6122 PDF 2019. You should also consider your needs, budget, and preferences, as well as the implications and consequences of your choice.
FAQs
Here are some frequently asked questions (FAQs) about NBR 6122 PDF 2019:
What is the difference between NBR 6122 and NBR 6118?
NBR 6122 is the Brazilian standard for design and construction of foundations, while NBR 6118 is the Brazilian standard for design and construction of reinforced concrete structures. Both standards are complementary and must be used together for civil engineering projects in Brazil.
How often is NBR 6122 revised and updated?
NBR 6122 is revised and updated periodically by a technical committee composed of experts, researchers, professors, engineers, consultants, contractors, owners, public authorities, and other stakeholders involved in foundation works in Brazil. The revision and update process usually takes several years and involves several stages, such as: proposal, draft, public consultation, approval, publication, etc.
How can I access other ABNT standards related to geotechnical engineering?
You can access other ABNT standards related to geotechnical engineering by visiting the official ABNT website or by subscribing to the ABNT online service. You can also search for free or cheaper sources of ABNT standards online, but you should be careful about the quality and authenticity of the downloaded files.
What are some examples of international standards that are similar or equivalent to NBR 6122?
Some examples of international standards that are similar or equivalent to NBR 6122 are: Eurocode 7 (EN 1997) for geotechnical design in Europe, ASCE/SEI 7-16 for minimum design loads and associated criteria in the United States, ISO 21581 for soil-structure interaction in pile foundations worldwide, etc.
Where can I find more information or assistance about NBR 6122?
You can find more information or assistance about NBR 6122 by contacting ABNT or by joining professional associations or societies related to geotechnical engineering in Brazil, such as: Associação Brasileira de Mecânica dos Solos e Engenharia Geotécnica (ABMS), Associação Brasileira de Empresas de Engenharia de Fundações e Geotecnia (ABEF), Associação Brasileira de Normas Técnicas (ABNT), etc.
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