BIM

Building Information Modeling

The new technology that reduces the cost and improves the quality of building construction

Leader: Apostolos Konstantinidis

Structural and Software Engineer

Inventor and Author

The term BIM (Building Information Modeling) denotes the modern software

technology regarding construction of buildings.

The underlying concept of this technology, which has emerged during the last

decade, is extremely simple. According to this concept, the building can be

described by its physical components/objects (walls, columns, beams, etc. ).

These objects, instead of being stored as drawings, are actually stored in an

intelligent database.

By retrieving the physical components of the building from the database, the

BIM software, is able to:

Create the three-dimensional model and all the drawings that can be derived

from it (floor plans, elevations, sections, perspective views).

Calculate the precise quantities of materials and cost items in general

needed for the building construction, thus estimating its anticipated cost.

Create any computational model (bioclimatic, static-dynamic etc.).

The database structure, namely the concepts that underlie the building

construction, is defined in the global IFC format (International Foundation

Classes). IFC format is being developed within the framework of cooperation

of software and building industry companies.

THE EXISTING CAD SOFTWARE TECHNOLOGY

The software companies, have

developed over the last 3 decades

the drawing-centered CAD

applications (Computer Aided Design

or Drafting), representing the

traditional approach of describing a

building with multiple drawings (floor

plans, elevations, sections,

perspective views).

The underlying logic of CAD technology

has three major disadvantages:

1. A lot of work required since many

drawings should be prepared in order to

describe the building.

2. Quantity take-offs needed to calculate

the total cost are carried out, based on

these drawings, almost manually. This

task requires a great amount of time

and specialized personnel, while,

eventually, significant uncertainties will

arise due to human deficiencies.

3. For any modification to be applied on

the building, both (1) and (2) steps

should be performed all over again.

THE EXISTING CAD SOFTWARE TECHNOLOGY

1. Decreases the design time in the

range of 70% and 95%.

3. Ensures the accurate transfer, in

real time, of huge volumes of

construction data between the

building designers, contractors

and industries involved at all

construction phases.

2. Increases dramatically the

accuracy/reliability of quantity

take-offs.

BIM COMPARED TO

EXISTING CAD TECHNOLOGY

BIM SOFTWARE TECHNOLOGY APPLIED ON

R/C STRUCTURAL FRAMES

The structural frame of R/C

buildings also follows the general

rules of BIM technology

mentioned above.

However, two decisive

particularities are not met in

other parts of a building that do

not comprise its structural frame:

BIM SOFTWARE TECHNOLOGY APPLIED ON

R/C STRUCTURAL FRAMES

1. The design of the structural frame is extremely complicated, especially

regarding the computational part.

BIM SOFTWARE TECHNOLOGY APPLIED ON

R/C STRUCTURAL FRAMES

2. The need to determine a huge number of rebars

(e.g. tens of thousands pieces in a middle scale multistory building).

CURRENT STATE OF BIM TECHNOLOGY

Mr. Apostolos Konstantinidis, structural engineer, inventor and author, has established

himself as a pioneer in both structural software and R/C construction markets. He has

been dealing with BIM technology since 1982, long before this technology has even been

given the name BIM. Today, BIM technology is integrated in his holoBIM application.

holoBIM is written in C++, while the Virtual Reality environment in OpenGL.

CURRENT STATE OF BIM TECHNOLOGY

Mr. Apostolos Konstantinidis, structural engineer, inventor and author, has established

himself as a pioneer in both structural software and R/C construction markets. He has

been dealing with BIM technology since 1982, long before this technology has even been

given the name BIM. Today, BIM technology is integrated in his holoBIM application.

holoBIM is written in C++, while the Virtual Reality environment in OpenGL.

CURRENT STATE OF BIM TECHNOLOGY

Mr. Apostolos Konstantinidis, structural engineer, inventor and author, has established

himself as a pioneer in both structural software and R/C construction markets. He has

been dealing with BIM technology since 1982, long before this technology has even been

given the name BIM. Today, BIM technology is integrated in his holoBIM application.

holoBIM is written in C++, while the Virtual Reality environment in OpenGL.

CURRENT STATE OF BIM TECHNOLOGY

Mr. Apostolos Konstantinidis, structural engineer, inventor and author, has established

himself as a pioneer in both structural software and R/C construction markets. He has

been dealing with BIM technology since 1982, long before this technology has even been

given the name BIM. Today, BIM technology is integrated in his holoBIM application.

holoBIM is written in C++, while the Virtual Reality environment in OpenGL.

CURRENT STATE OF BIM TECHNOLOGY

Mr. Apostolos Konstantinidis, structural engineer, inventor and author, has established

himself as a pioneer in both structural software and R/C construction markets. He has

been dealing with BIM technology since 1982, long before this technology has even been

given the name BIM. Today, BIM technology is integrated in his holoBIM application.

holoBIM is written in C++, while the Virtual Reality environment in OpenGL.

THE NEW ERA IN BUILDING CONSTRUCTION

Engineers, contractors and industries communicate online in real-time

Copyright: Apostolos Konstantinidis info@buildinghow.com

More details in the site: www.buildinghow.com

Video presentations:

The idea of holoBIM, presented at the 1-minute video:

https://www.youtube.com/watch?v=3GAV1Roydkw

If you are interested to learn the concept of holoBIM, then you can

watch the 11-minute video:

https://www.youtube.com/watch?v=rMWWSNP5bV8

If you are interested to see the performance of a real project in real-

time, then you can watch the holoBIM 43-minute video:

https://www.youtube.com/watch?v=MKCnvOEn5Nc

The End