Understanding Bim and Its application in modern construction technology

Definition:

BIM is said to be the analogical portrayal of a physical and functional aspect of a construction project that has shared knowledge resource for information about a facility forming a reliable basis for decisions during the project lifecycle.

BIM is a process for organizing and managing all the information during the project life cycle i.e. Designing, Pre-construction, budgeting, construction execution, and operations.

In a professional language, BIM is an intelligent 3D model-based process adorns architecture, engineering and construction professionals with the insight and tools to manage, plan, design and construct buildings infrastructure to turn out the remarkable results.

Comparing BIM to CAD

There are significant differences between CAD and BIM. BIM has notably changed the way the construction society designs, documents and builds a particular building. BIM is not just a 3D CAD file; it is possible to analyze, understand and even predict the behavior of the structures via models. In other words, it’s all about the data, and the reuse of that data by a broad range of stakeholders. In short, BIM is dynamic, productive and the model gets richer over time.

Whereas in the CAD domain, it is everything about the geometric representations, but there is not enough exact information that can be used in the long-term information of the building. In comparison with BIM, the CAD environment is likely to be static. Once delivered, the 2D models are frequently rolled up and stored, while the model can be used daily.

Evolution of BIM

Before we get started with BIM and its implementation, let’s review where we stand with regards to the development of BIM. In the past, the 2D designs and the construction drawings are formed manually. In the course of time, the tech-savvy design firms discarded the hand-drawn designs, and 2D computer aided design (CAD) came into existence which gave way to the tools that could create 3D dimensional views of a design and more cutting-edge tools allows the architects to design directly in three dimensions using the virtual models.

The pre-BIM situation

  • The use of 2D drawings seems time-consuming, tedious and error-prone;
  • Limitations to look at the relationships between the systems;
  • Significant question of interoperability;
  • Very small adherence between the various trades; and
  • Annotations on the drawings that needs interpretation.

The current scenario

  • The owners are integrating BIM in their contract documents;
  • Projects are requiring models that can be evaluated for a range of project behaviours including life-cycle costs, energy consumption, spatial validation, etc.;
  • On-site BIM rooms are using the projection systems as well as running virtual meetings;
  • The expertise in the entire construction world is building up in rapid speed which results in better models;
  • The accuracy of models is at par, demonstrated by on-site professional;
  • Using BIM, development of multiple models to explore design and construction is easy;
  • Vendors have been working on the development of 3D building material archives to facilitate the BIM usage; and
  • Automatic code checking is feasible.

The Future

  • Facility management via the Internet;
  • The Augmented Reality( capable of being in the model while on the construction site;
  • Paperless workflow for the entire design, build and performance life cycle.

Benefits of BIM

  1. Improve collaboration amongst the team;
  2. Simulation and Visualization;
  3. Clash Detection;
  4. Saves money by reducing labor cost on rework and increased productivity;
  5. Eliminates duplication.

 

The Best Revelation Of BIM.

You most likely never heard of “BIM” – building information modeling – but use of BIM promises to greatly enhance the functional, technical and economic performance of future housing development.

BIM is a powerful  tool that is increasingly employed by architects, engineers and builders to design houses, townhouses, apartment buildings or any other type of construction, irrespective of how complex.

Domiciles intelligently designed using BIM will consume less energy and emit less carbon, be much more comfortable thermally and acoustically, involve less water usage and start to become more cost-effective.

But BIM doesn’t design, nor does it replace the designer. It doesn’t generate architectural ideas or make aesthetic judgments. While it could make buildings work better, it can’t make sure they are beautiful.

Here is what BIM can do:

BIM allows designers to create, visualize and continually modify digital types of possible building designs. A design can be represented with only a small amount or as much detail as needed, showing any or all of a building’s many components and systems. And a model could be instantly edited, allowing unlimited numbers of variations to be studied.

A designer can readily tweak a building’s geometry, roof shape or slope; floor plan and room configurations; wall thicknesses measurement or ceiling heights measurement; fenestration designs or door placements. With each tweak, the computer software immediately adjusts and displays the entire digital model to  change the reflect.

But  capability of BIM’s transcends  tweaking and visualization

Sophisticated BIM programs, such as for example Revit and Grasshopper, enable quantitative measurement of key project performance characteristics predicated on selected parameters. Analyzing and comparing multiple design options can optimize a design predicated on whichever parameters are deemed most important – energy is use, carbon emission, daylighting, structural efficiency or construction cost. This is why BIM can be known as “parametric” modeling.

Digital modeling and testing isn’t limited to buildings. Plans for redeveloping communities, office and industrial parks, urban neighborhood revitalization or entire towns could be quantitatively evaluated.

Until recently, planners and building designers lacked the time and technology to create and mathematically analyze step-by-step design options searching for an optimal scheme. Instead, a couple of schematic concepts will be generated and studied, sometimes combined with physical study models.

During early years of practice, my firm planned new residential communities and housing, mid-rise and high-rise apartment buildings, and custom single-family domiciles. Even though fairly confident about how exactly these projects would look and become used, I could only theorize about how well-organized or cost-effectively they would perform years after being built.

Designs were predicated in part on relatively objective parameters: site and climatic conditions; prevailing construction standards and techniques; building code requirements; construction cost targets; and residential market criteria.

Until recently, architects in effect handed off designs to consultants to ascertain heating, cooling, ventilation, plumbing, electricity, lighting and other systemic needs. Following well-established practices and norms, engineers did all structural, HVAC and other calculations “by the book. ” Contractors priced the built-in design described in final specifications  and drawings, presumed to be accurate, complete and coordinated.

Today, architects, engineers and builders work far more collaboratively, acting together as a team from the outset of design. Because of BIM, the collaborative design process is efficient, productive and reliable – if BIM assumptions, input data and evaluation criteria are valid and up currently.

Obviously, architectural quality still depends upon the aesthetic talent and creativity of the team’s designers, not BIM. None the less, with a strong team and sound judgment, BIM could make good architecture better still.