Enhancing the BIM process with 3D image capture

Prior to the digital age, engineers conveyed their work and collaborated through hand-drawn designs. Building inspections and site investigations were conducted using a tape measure, a pencil and graph paper. At that time, drawing by hand was the only way to accurately capture existing information and to develop new designs.

Mechanical room flat plan drawing

Advances in technology have since changed the way that engineers capture and convey information. Digital cameras replaced hand drawn sketches during site investigations, and computer-aided design programs, such as Sketch-up and Revit, replaced the practice of drawing by hand. These new tools lead to increased accuracy, efficiency during site investigations and design, and the ability to digitally store and reuse information.

As technology continues to develop, so too do the methods for which buildings are designed and their data is captured, stored and used. Revit has become the industry standard for accurately modeling new buildings and their systems in 3D – more commonly included as part of Building Information Modelling (BIM). Even with BIM tools, designers and engineers are confronted with days of laborious and time consuming BIM modeling due to hand-drawn measurements, notes and 2D photographs from the site which add to the length of the project schedule and budget. New technologies are emerging, including lasers and infrared beam scanners, which allow for data-rich information of existing spaces to be rapidly captured, stored and digitally explored.

HH Angus uses a Matterport 3D Scanner to capture existing spaces which is then converted into 3D models for our clients. We have used these models in a variety of situations and continue to push what can be accomplished by having an accurate, to-scale 3D model of existing buildings and their systems as well as the value it can help us deliver to our clients.

The value of 3D image capture and modeling for existing buildings projects:

1. Capture site information faster and accurately

An accurate 3D model of existing conditions (typically within a centimetre of hand measurements) through image scanning the space. This process can usually be done up to 60% faster than traditional hand measurements. Because the image scanning captures information in a point cloud, this information can be automatically imported into Revit, eliminating the need for manually entering hand measurements and reducing the time of creating the Revit model by nearly half. The BIM model can be provided to consultants, potential bidders and contractors allowing them 24/7 access. When the site information is available in a digital and 3D photorealistic format, the result is fewer questions during RFP periods and fewer site visits are required.

2. Capture spaces during construction

The ability to use image scanning to capture site information and create a 3D model at any time during construction can be very useful in a variety of situations. For example,  recording a snapshot of progress for contractor payment draws or to provide enhanced construction documentation to project stakeholders. Capturing the space when services are installed but before walls and ceiling are in place can be a great reference for reference for future maintenance and renovations.

3. Digital representation of spaces and assets

 While many newer buildings may have accurate construction data stored in a BIM model which is helpful for future renovations, expansions or retrofits, many older buildings were built before CAD and BIM was common. 3D image scanning can quickly create digital models of these existing buildings by vastly streamlining the time-consuming process of collecting building details by hand measurements and then subsequent manual entry to create a BIM model.

Interior rendering of a mechanical room

Information can also be associated to a building space or asset within a 3D model such as a piece of mechanical equipment or electrical panel. Information that can be mapped to an asset can include the O&M manual, last service date, information from a building condition assessment, and other types of information. This can be done for an existing facility without requiring a complete BIM model.

4. Remote access for facility managers

A 3D model can allow facility managers to ”walk” through building areas and read equipment information from a nameplate remotely with only an internet connection required. It could also be done from a mobile device such as a smartphone or tablet. The ability to access this level of detail remotely can be extremely useful for troubleshooting and for organizations that have multiple sites spread out geographically. 

5. Future Developments in 3D Image Scanning 

Currently, point cloud data generated in 3D image scanning still needs to be converted into useable data to create a BIM model. This is typically an additional and fairly manual process. With advancements in machine learning and artificial intelligence, research is underway where algorithms can be used to automatically identify structural elements and interior furnishings, elimintating the need for a person to manually identify these items in the process of converting a point cloud file to a BIM model. This could even further streamline the process allowing engineers and designers to focus on value-added tasks rather than losing time on determining the status of the existing building condition.

3D Model in Action

HH Angus has captured and converted over 165 of our clients’ spaces to 3D models. We were engaged by St. Joseph’s Healthcare Centre to redesign and renovate the Nuclear Medicine and MRI areas of their Digital Imaging Suite. During the first site visit, HHA scanned the area using the Matterport Scanner to create a 3D model of the space. This model has since been used throughout the design and tender process of the project, and will continue to be used in the construction phase.

Authors:

Akira Jones

BIM Lead

akira.jones@hhangus.com

Melissa Parry

BIM Specialist

melissa.parry@hhangus.com

Philip joined HH Angus in 2006 and is currently a Senior Electric Engineer and Project Manager in our Technology Division. 

What’s your favourite thing about working at HH Angus?

I like the diverse projects and diverse clients. I enjoy the work. It is satisfying to see things get built. I enjoy the travel aspect – working all over the place, different clients, different things.

Where do you travel for work?

So far, I’ve traveled around North America.

How do you personally contribute to design and construction?

I am the Lead Electrical Engineer on a number of projects, responsible for design, project management, and delivery of our design to our clients. We are often the prime consultant on projects, the head consultant. We retain an architect or a structural engineer directly,  or select them on behalf of the client. In those cases, the client retains them but we manage overall the process. We also manage the procurement of equipment and services for the client.

How has working here helped you grow in your career?

It was the first job I had out of school, so I’ve grown quite a bit in my career.

“I've enjoyed diverse opportunities being able to work on multiple projects, with multiple clients, with multiple diverse models.”

 

Why did you want to become an engineer?

I was interested in technology and, I thought it would be interesting to have a career at that field.

What project are you most proud of?

I really felt good about the Sunnybrook High Voltage Emergency Project. That was one I designed and was the Electrical Lead. It was a project where we took a completely functional hospital and rebuilt their emergency power plant without compromising emergency power to the hospital the bew plant was built within the footprint of the exisiting plant. It was a very challenging project, which involved multiple phases of construction. 

What are some of the things about the company that you really like?

I like the dedication over the years to the library collection. I thought that was pretty great. Some of the people who work in Records Management have a background in library science. The company has been dedicated to the knowledge behind engineering we have books from 20s. It speaks to the longevity of the company. Over the years, people have accumulated technical standards, books, journals and things pertinent to older systems and technologies. A lot of places don’t have a comparable knowledge base.

When you started with the company, did you have a time when a senior staff member helped you along? 

When I started, they used to pair the new grads with an inspector and send them to construction projects. I spent probably 2 to 3 weeks doing that. You got to see the practical aspects of construction which puts a lot of things in perspective when you are designing. For me, that had a lasting impact. Additionally, I was fortunate that I had some projects that went into construction when I started. They had already been designed and I was tasked with looking after the contract administration. Seeing other people’s designs, how they were being built, some of the issues that come up, was very useful.

What inspires you?

Family, friends and doing good work. 

What trends or technologies on the horizon excite you most?

I always tell younger staff, one of the best things ever invented was the digital camera. It may not seem all that great now because it is so prevalent. Also PDFs. When I started, the majority of submittals were paper. We would receive paper submittals, we would do our reviews, we would staple our reviews to them and courier it out. You’d do a large project with a wealth of information, and you would no longer have it at your fingertips because it was all on paper, which is now stored off site. But, nowadays, it’s all PDFs. You can keep a copy and everything is readily available. Same with digital cameras. Somebody can go to site and take photos of what they are working on. You’ll always have that reference to go back to later: “oh, this is what I did on the last job. Maybe it didn’t go exactly as planned – let’s do it a bit differently this time”. Today, the technology gives you accessibility that you didn’t have in the past.

What skills or traits helped you advance in your career from the new grad stage?

I always believed in making the product you are selling better in order to be more competitive. Have diverse experience. Obviously, getting licenses and certifications speak to a broader experience and broader knowledge base. When you are selling services, you want to make sure the clients understand they are paying for experience, for somebody who does this for a living. They don’t have people on staff to do the work, so they are hiring us. 


 

Melissa joined HH Angus in 2016 and is currently in the role of BIM Coordinator in our Knowledge Management Group.

What’s your favourite thing about working at HH Angus?

I enjoy my role as a contributor to BIM standards and workflow development. A large part of my job role is to develop new BIM workflows and provide specialized training and support to our staff. It is rewarding to have the flexibility to work on many different BIM initiatives and have the support of management to implement these new workflows company-wide and ensure they are successful.

How do you contribute to design and construction here at the company?

I coach members of our BIM team and operations staff on many different aspects of Revit and BIM to help improve efficiencies to produce construction drawings using BIM software. This includes building parametric Revit family content, advice on how to handle scan-to-BIM projects, and working together to find the best solutions for challenges in Revit.

How has working at HH Angus helped you grow your career?

HH Angus supports professional development. I am encouraged to participate in industry conferences and training programs to grow and learn new skills, and achieve professional designations. Management on the BIM team recognizes our strengths and weaknesses as individuals, and we work together to grow as a team so we can provide the best service to our clients.

Why did you want to work at HH Angus?

When I applied for my job in 2016 I was looking for a company that could provide stability, flexibility, and professional growth. Since then, HH Angus has provided the resources and support to help me exceed my career goals. I have presented at industry conferences, become an expert with new technologies and achieved my professional designations as an Autodesk Certified Professional and CanBIM Professional Level 2.

“The sense of community here is really awesome. It really feels like the company cares about you, supports you and helps you grow professionally. ”

What are some of the projects that you are most proud to be involved in at HH Angus?

I am most proud of our scan-to-BIM services. We have completed several scan-to-BIM projects such as Toronto Western Hospital’s Powerhouse Redevelopment. For this project, we scanned the 17,000 sf powerhouse and created a Revit model from the point cloud data to be used for refurbishing and replacing mechanical and electrical systems to improve reliability. This includes the hospital’s central steam, chilled water and emergency power systems servicing the operating rooms and general campus.

Another project that stands out was providing our scan-to-BIM services to a confidential client where we scanned the existing infrastructure of their data centre using the Faro laser scanner. Using the point cloud data and BIM software, we provided a LOD300 Revit model of all mechanical, electrical, plumbing, architectural and structural infrastructure. The client used our deliverables for 3D coordination of their switchgear replacement project and, since then, they have relied on our services for multiple projects.

What attracted you to HH Angus, coming out of school?

I researched many other companies, and what stood out about HH Angus is that it has been in business for so long – over one hundred years – so it has to be doing a lot of things right.  And I did notice by researching and talking to people that the company is very innovative and forward thinking and this is something that I wanted to be associated with.  I wanted a stable and rewarding career so that I can be here for a long time, and that’s what I've found.

Is what you are doing at HH Angus what you expected to be doing when you graduated?

I didn’t know what to expect, but I expected to be working with Revit. My role today is not what I initially thought about because I graduated from an Interior Design-focused program where I learned Revit, and then I worked on a few MEP projects in school. I got my foot in the door with the foundational skills I learned in college, and then grew into my role as BIM Coordinator with the support of my BIM team.

What are some of the things that you like about HH Angus aside from the technical aspects of your work?

The sense of community here is really awesome. It really feels like the company cares about you, supports you and helps you grow professionally. Our BIM Team has staff across the country and we work to maintain a closeness with each other over video calls and having fun together with virtual team-building activities like 'Family Feud'. HH Angus respects my work/life balance and enables me to have flexible working hours, especially with half-day Fridays year-round. The remote working aspect of my relocation from the Toronto to Montreal went so smoothly that some folks didn’t even know I had moved provinces.

“Having a mentor helped me learn what everyone’s role was and who to talk to for different kinds of project work. ”

What has been your proudest moment here?

It was when I taught a conference class on Reality Capture. I worked very hard for many months to develop the presentation, a 14-page handout, and on the spotlight project for Toronto Western Hospital. A lot of hard work went into that, and it was really rewarding to present it to an international audience of industry professionals and to share my knowledge. This led to a customer success story with Matterport and another presentation at Autodesk University.

Did you benefit from HH Angus' mentorship program?

HH Angus’ mentorship program is very beneficial - having a mentor helped me learn what everyone’s role is and who to talk to for different kinds of project work. This helped me build relationships with a diverse group in the company and to learn from their advice so that, in my role now, I can help others looking for advice.

What inspires you?

It is very encouraging to see colleagues build their skills with Revit and BIM software. As someone who creates and delivers in-house training programs for BIM software, it’s inspiring to see our staff succeed after leaning something new and taking initiative to build upon those foundational skills.

What aspects of your work you enjoy the most / least?

I enjoy training people so much. Developing the training courses, trying to make it interesting for all types of people with different personalities and especially different learning styles – that’s a big challenge in developing a training course that many people will take part in. So, I try to make my training courses fun; we get a lot of good feedback and that’s what I love the most.

Do you have any secret talents?

I like riding my motorcycle in the countryside. That’s my favourite weekend hobby, and would be my everyday hobby but I have to work.

What skills or traits have helped you the most to advance in your career?

I would say it’s knowing when I don’t know something and asking questions, researching, being willing to learn. I did graduate from an Interior Design program in college, so engineering was new to me as I was starting out. It’s essential to ask questions and gain a good understanding of the task at hand to do a good job. Talking to people and learning from their experiences is invaluable, especially since technology is evolving very quickly and there is always a new workflow to master.

If someone were to ask you if they should apply to HH Angus, what would you tell them?

Absolutely yes! It’s a fabulous place to work. The management cares about you, your work is interesting and everyday there is something new happening.


Toronto-based HH Angus and Associates is celebrating its 100th anniversary in 2019, and at the end of May the company announced that Paul Keenan, formerly director of its health division has been named president.

Keenan replaces Harry Angus, the third generation of the Angus family to lead the privately owned firm. Angus remains on as CEO and Chair of the Board.

A Queen’s University grad, Keenan has been with the firm for 25 years and served as director for the past decade. Also, within the past year, HH Angus was selected among Canada’s Best Managed Companies for 2019, an achievement received in its first year applying to the Deloitte program. And last fall the firm captured the Schreyer Award at the 2018 Canadian Consulting Engineering Awards for its work on the CHUM hospital in Montreal.

We spoke with Keenan to discuss HH Angus and where it goes from here.

You’re the firm’s first president not named Angus. What does that mean for the company?
I think it in part means we’re maturing. The firm has grown to over 250 people, and I think that as a bigger company you need inputs from different areas. The family legacy is important and it continues—Megan Angus, Harry’s daughter, is one of the senior leaders in the organization—and although I’m not part of the family. I’ve grown up in the HH Angus way, so we’re maintaining some of that family connection and we’re enhancing it as we go forward.

Describe the HH Angus culture?
We try to maintain the family feel of the business, and with that comes a responsibility to the staff and a social responsibility to the community. Our turnover has been historically very low—we have 40 or 50 employees with over 25 years service—and that longevity and feeling part of a group is
important for us.

What is your leadership style?
My experience here has always felt like a series of careers within one career. I started on small projects, gaining skills and transitioning naturally from project to project with larger challenges and increasing levels of responsibility.

I want to create those opportunities for our people. We’ve got to give them the opportunity to succeed or fail and go from there. At some point we all make decisions, and we need to believe in our decision making process based on the experiences we’ve had. Trust yourself, trust your team, make your decision and then move forward.

It’s important not to get stuck; we need to keep our momentum going.

How does a consulting firm foster creativity & innovation among its employees?
I think that’s a challenge for the entire industry, and we need to move more quickly now, to get from ideas to execution. One of the things we’ve done this year is create an Innovation Hub, which is a forum and a place to gather a range of ideas and have our people practice making presentations and share ideas, and then flesh them out, incubate them and then execute.

How has the firm changed over the years?
Traditionally, mechanical/electrical consulting engineering-led projects had been half of our business, and then the world changed. We did a lot of healthcare-related work in the ’90s and have become recognized as healthcare experts. As that market has matured we’ve responded and entered different areas, for example transit, data centres, and more commercial work. Our energy group, that traditionally has done a lot of industrial work, is focused on more low-carbon, sustainable energy projects.

We also have some sub-specialities, such as vertical transportation, lighting design, and our ICAT group that does communications and consulting around smart buildings. You need to be diversified enough to respond to what the market is telling you.

How will you measure your success?
One of our primary objectives is to continue to be an independent firm. That comes with its challenges, but it also comes with its rewards.

We’ve been on a steady trajectory of growth and fundamentally we need to continue to grow; growth is important to create opportunities for our employees and for the underlying strength of our business. We need to be strong enough to resist whatever economic forces come along; we need to grow geographically; and we need to grow our share of the market and do the kind of interesting work that motivates our people.

Which HH Angus project has impressed you the most?
There are many projects in the history of the firm that are impressive and set us on the path of wanting to continue doing projects that are special and iconic. Personally, the Sick Kids research tower, a 750,000 sq. ft. research building, is iconic in the City of Toronto and more fundamentally is a place where important things happen for the future of this community and this country. 

Canadian Consulting Engineer
June/July 2019 

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