Showing posts with label quantity takeoff. Show all posts
Showing posts with label quantity takeoff. Show all posts

October 14, 2013

BIM Workflow for Roads and Highways

This year, Ideate is offering a new class based on the BIM for Road and Highway design to go along with Autodesk’s new BIM Specialist: Roads and Highways certification. 

Although the concept of BIM or Building Information Modeling has been around for years, its integration into the world of Road and Highway design has been relatively slow when compared to that of Building design. The 2014 Autodesk Infrastructure Design Suite provides users with core products for use in BIM modeling for Roads and Highways. In this article, we’ll talk about the products involved, and some the roles they play in the BIM Workflow process.

When looking at the list of products in the Infrastructure Design suite – Ultimate version, we’ll find applications for many stages of the project lifecycle. For the purpose of our blog, we’ll break this down into three main areas.

Stage 1: Planning and Preliminary Design
Stage 2: Detailed Design and Documentation
Stage 3: Construction Simulation/Management

For Stage 1, Autodesk InfraWorks is available to combine both existing and proposed data sources and create a virtual 3D model of a planned development. Autodesk InfraWorks is compatible with GIS, AutoCAD, Civil 3D, Revit, Point Cloud and other data types and also includes tools for creating proposed features and cloud-based profile optimization for road design. 

Once models are created, Autodesk InfraWorks also includes tools for creating storyboards, virtual fly-throughs, and scenarios for communicating design concepts. Finally, Autodesk InfraWorks models can easily be exported and imported into Autodesk AutoCAD Civil 3D for continuing on to the next stage of the design process.

The Autodesk AutoCAD Civil 3D modeling tools provide civil engineers with the ability to add large amounts of information to the models for use in the BIM process. Built-in analysis tools like Storm and Sanitary Analysis and Hydraflow, along with  plan production tools to automatically cut Plan and Profile and Section Sheets make AutoCAD Civil 3D an excellent program to use for Stage 2 of our workflow. Additional tools for Quantity Take-offs, earthwork, and material volume calculations also provide the necessary data for construction cost estimates based on the information contained in our models.

Once designs are finalized, we can move on to Stage 3 of our BIM Workflow.  Model components can be exported back to Autodesk InfraWorks for high quality visualizations of the final design, and imported into Navisworks Manage for construction management and simulation. Both applications are also compatible with files from Autodesk Revit as well as other software packages, giving us the ability to create realistic composite models using data received from all parties involved in a project.

Within Navisworks Manage, the Timeliner tool can be used for creating 4D and 5D construction simulations by linking model components to timelines created in project scheduling software like Microsoft Project or Primavera.

Along with the Timeliner, Navisworks Manage also includes Clash Detection for detecting clearance violations and hard clashes between model components.  Simulated construction sequencing and virtual clash detection help save time and money through early detection of issues that could lead to costly redesigns and change orders if found during construction.

So there you have it, Autodesk InfraWorks for preliminary planning stage design, Autodesk AutoCAD Civil 3D for detailed design and construction documentation, then back to Autodesk InfraWorks or into Autodesk Navisworks Manage for advanced visualizations, construction simulation, clash detection and construction management. A BIM Workflow for Road and Highway design using applications included in the 2014 Autodesk Infrastructure Design Suites.

Interested in finding out more? Visit our website for the next open enrollment class on BIM Workflow for Roads & Highways and to find out more about Autodesk’s BIM Specialist: Roads & Highways certification.


Matt Miyamoto, P.E.
Ideate AEC Application Specialist

Matt is an Application Specialist at Ideate, Inc. and is a licensed Civil Engineer with over 10 years of industry experience. He has successfully completed the BIM Specialist: Roads & Highways certification and helps to provide training, consulting and technical support services for our customers at Ideate, Inc. @MattM_PE

Get it. Know it. Use it.

April 30, 2013

AutoCAD Civil 3D 2014 Pressure Pipe Improvements – Extracting Material Quantities

Ideate is dedicated to bringing you the latest information on the new releases of Autodesk software. In AutoCAD Civil 3D 2013 you could extract material quantities from gravity based pipe network by assigning them pay items. With Civil 3D 2014 you can now do the same for pressure pipe network parts. It’s easy! Here’s how: 

1. Edit the Parts list from the pressure pipe network contextual tab

2. To assign the Pay Item to the part – Click on the Dump Truck


3. Open/load a Pay Item file. Default Civil 3D install keeps a sample file at the following location:
 

C:\ProgramData\Autodesk\C3D 2014\enu\Data\Pay Item Data\Getting Started\Getting Started.csv


4. Assign the pay item to the pressure pipe network part

5. Layout the network.

6. And then extract the quantity from Analyze > QTO > Takeoff. This is summary takeoff is displayed as HTML.

In addition, you can now create pressure pipe and fitting table similar to pipe table for gravity pipe network.



Don’t forget to look through other great features our Ideate Technical Team has found in the new 2014 releases for Revit MEP, Revit Structure, Revit Architecture, AutoCAD and more: ideateinc.com/2014



Gaurav Bagga
Ideate Infrastructure Solutions Application Specialist

Gaurav is a well rounded Application Engineer and Project Manager for Infrastructure Solutions at Ideate based out of San Francisco. He has over 15 years experience in construction industry and has been helping numerous small, medium and ENR 500 firms maximize their CAD investment for the last ten years. Gaurav is an Autodesk Certified Instructor and Autodesk Civil 3D Implementation Certified Expert. He has taught at several conferences, CAD Camps and Autodesk University. He has taught AutoCAD, Civil 3D, Land Desktop and Map 3D to thousands of students and helps Ideate develop the Infrastructure Services curriculum and courses. With his extensive CAD technology background he helps Bay Area engineering and surveying firms analyze and improve their design and drawing production process thereby improving productivity and the bottom line. Follow Gaurav on Twitter: @BeGeez

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April 22, 2013

Revit 2014 Feature Review: More Data Liberated!

As the developers of Ideate BIMLink we’ve been very focused on the data that our customers are embedding within their Revit Building Information Models, so as always when a new version of Revit ships, we carefully scrutinize all the new features and how they relate specifically to information management. Here’s a brief synopsis of what to look for and why you should care.

Revit 2014 Supports New Schedules Types
On the View tab, under the Schedule tool, find these new kinds of schedules. 


  New Schedule Category Value 1-5 (5=Best)

(Arch) Columns

1
Feature: These are the architectural columns; the structural columns are already being scheduled.

Benefit: Questionable value unless you are using the column family in some atypical way. Structural columns are generally the ones to schedule for takeoff work.

Detail Items 5
Feature: 2D detail components, including fill patterns, are included in this new schedule type.

Benefit: This has been a user request for some time, which is why it’s been in Ideate BIMLink since version 2011. Oddly, the repeating details and filled region elements appear to be lumped in with the more conventional items, so you may need to filter them out. Editing the keynote assignment will be the most practical use of this new functionality.

Take Detail Items farther with Ideate BIMLink.

Entourage 1
Feature: These are the 2D stick people that when rendered look slightly less 2D. YinYin – where are you?!

Benefit: I see no practical use of this feature, so email me if you can figure it out. I guess if you had 100+ Entourage components and you wanted to use this schedule as a way of knowing which Rooms they were in, that might be useful, but that seems like a bad use of a schedule.

Generic Models 4
Feature: All those items that otherwise defy categorization can now be scheduled.

Benefit: This was another early Ideate BIMLink request that was implemented in 2011, so no doubt this will prove useful to some who are managing uniquely modeled elements. The absence of level and host information is why this is not marked as a 5.

Grids and Levels 5
Feature: The name says it all.

Benefit: Why not schedule these? While this hasn’t been a strong user request, having a summary of this information is a great way for a project manager to understand the project at a glance. I particularly like the fact that you can see and modify the Scope Box assignment for these items.

Auditing Grids and Levels are part of Ideate’s Revit Audit Tips.

Pads 1
Feature: The building pad object that is used to create a topography “cut” and place a slab-like object at the same time.

Benefit: If used at all (it has an issue, still, with being properly managed by phases) the pad is unlikely to be needed as a scheduled object.

Roof Soffits 3
Feature: Roofs, Roof Fascia, and Roof Gutters have always been able to be scheduled; now Roof Soffits join the mix.

Benefit: This is a long-standing Revit request related to the delivering a more complete quantity takeoff. Glad to see that it’s been included.

Structural: Beam Systems, Area Reinforcements, Path Reinforcements, and Fabric Areas 2
Feature: As with Roof Soffits, the addition of this data rounds out the Structural elements that can be modeled.

Benefit: Unclear to me whether this has value. I think this information may be a bit ahead of the curve for most structural/construction firms, but it’s nice to see Autodesk expose this information to be leveraged as customers see fit.


Revit 2014 Schedules Include New Properties
In addition to the new schedule categories several bits of data have been exposed for your use. What will you leverage?

 
  New Property Added To Schedules Value 1-5 (5=Best)

Phase Created/Phase Demolished

5
Feature: Now your takeoff schedules can include the name of the Phase in which the element was created. I’m assuming that the Demolished field has negligible value when it comes to schedules. These two fields can also be used as a Filter within the schedule.

Benefit: As we have documented in this blog called “Avoid Takeoff Blunders,” not having the phase info could cause significant issues within a quantity takeoff. In a multi-phase project these fields should be required as part of a QC process.

Analytical and Physical Element Data Merged 3
Feature: When you schedule the structural framing category (or any other category with associated structural analytical model categories) you can now find both the physical and analytical properties available within the same schedule.

Benefit: Being able to edit some of the analytical structural properties, in-line with its physical properties is part of a larger improvement related to the analytical model which will help solve round-tripping issues between Revit and structural analysis software.


It’s great to see all this newly liberated data – it will be fun to see the new and creative ways in which Revit users put this data to work.  


Don’t forget to look through other great features our Ideate Technical Team has found in the new 2014 releases for Revit Architecture, Revit MEP, Revit Structure, Civil 3D, AutoCAD, Navisworks and more: ideateinc.com/2014



Glynnis Patterson is a registered architect and the Director of Software Development at Ideate, Inc. Glynnis is a graduate of Carnegie Mellon and has worked in the commercial, residential, and healthcare markets as an architect and has also worked in the construction industry as a construction estimator and project manager. Follow Glynnis on Twitter: @GVPinNJ

Get it. Know it. Use it.

March 1, 2012

Ideate Tech Team – Top Tier Experts from Ideate Present at Autodesk University 2011

Ideate tech team leader and veteran AU presenter David Haynes says of the AU experience, “Presenting is a privilege. Preparing is a challenge. It is very competitive to speak. In fact, about three times as many apply as are accepted. Once you are accepted, you have five months to prepare.”

As a veteran, Haynes understands what his team experiences. “Anxiety sets in for presenters during the last month prior to AU,” he explains. “The team, in spite of their vast experience and technical expertise, begins self-questioning, ‘Am I ready?’ Speaking in front of hundreds of people can be intimidating, and the post-presentation surveys hold another opportunity for anxiety or relief. The comments can boost your sense of accomplishment or the opposite.”

Haynes would not trade the experience for anything. As he says, “There is simply nothing else like AU in the world. The diversity of attendees from many nations is vast. There is a wide breadth of experience in attendees. There is a lot to talk about and a lot to learn.”



Multiple Facets of Ground-mounted LiDAR Scanning Process Revealed

The lecture class, “LiDAR Data and Point Clouds: From Scan to Plan with AutoCAD Civil 3D,” presented by Matt Miyamoto, PE, Ideate Infrastructure Application Specialist, was designed for surveyors, engineers or planners who wonder where their data comes from and who want to find out more about the ground-mounted LiDAR scanning process.

The session took a look at tools for LiDAR data collection, presented a discussion on how ground-mounted data is collected, processed, and incorporated into a Civil 3D drawing via AutoCAD Civil 3D Point Cloud functionality, and explored how a Civil 3D Point Cloud object can be used to create an existing ground model for use in design and can be further evaluated in Autodesk Navisworks®. 

Participation was far livelier than Miyamoto anticipated. As an example, one attendee, a university instructor, expressed the intention to – after the session– “scan and model my 640 acre campus.” Another attendee from Canada offered to retrieve a laser scanner from his hotel room so that participants could delve even more deeply into the topic.

Miyamoto noticed that during the question and answer period there were many questions that were topic related but not product related. In other words, attendees were interested in both the cross-functionality of the products and the over-arching technology.

The post-class surveys revealed how the presentation would affect participants going forward and what they anticipated next:
“Consider this technology more in my work.”
“Incorporate LiDAR into all my projects.”
“Not become so intimidated by LiDAR survey.”
“Start using point clouds for large surface data sets.”
“I learned the different workflows and capabilities of Civil 3D that I will explore once I get home.”
“Promote using point clouds to my clients (I am a reseller).”
“Present to the office another method of accurate data collection to think about.”
Among the roughly two dozen completed surveys, three indicated they felt that the session was targeted to students on a level lower than their current expertise. The majority indicated that the class was right in line with what they hoped to learn.
“Matt was very well prepared and his presentation really showed the capabilities the class was advertised to show.”
“Good presenter, knowledgeable and professional.”
“The speaker did an excellent job of covering the material and demoing the workflows.”
“Best and most useful class I attended at AU. Speaker obviously has a passion for the subject and used the time allotted well.”
Courses Taught at Ideate: Civil 3D Fundamentals, AutoCAD Fundamentals, AutoCAD Beyond the Basics, AutoCAD Update, Navisworks Fundamentals



Ideate AEC Application Specialist Ron Palma presented two classes. One class, “Shop Drawings in Revit: What? It Can Do That?” focused on helping attendees create shop drawings of their designs using the new Parts, Assemblies, and Assembly drawing tools in Revit Architecture and Revit Structure 2012. The other, “2D to 3D: Transitioning Documentation from AutoCAD to Revit,” a special AU Unconference Session, provided an open discussion on moving documentation from the 2D AutoCAD realm to the 3D Revit world.

Parts and Assemblies Class Fills Lecture Hall

The Parts and Assemblies class was designed for AU attendees who need to create shop or assembly drawings of building materials within Revit Architecture or Revit Structure. Attendees included architects, designers, interior designers, engineers, detailers, contractors, and construction modelers. The class focused on the new Part and Assemblies tools, and covered how the tools work with practical applications in various scenarios. Initial signups included 190 students, and attendance exceeded that number with nearly 200 on hand for the presentation. Attendee survey comments tell the story:
“Great job. Loved that the material in Revit was presented real time. Great speaker and easy to follow along.”
“Great presenter. Solid information.”
“I loved this class. Presenter is gold. Where was he all this time???”
“I was only taking this class because there wasn’t anything that sounded better. After attending, this turned out to be the most important and informative class I’ve had. Great presenter.”
“The speaker did a great job illustrating many avenues to utilize the new tool.”
“Very good class, with lots of questions and interaction with the participating class members.”
Animated Unconference Session Provides Ample Individual Attention

Within the open discussion “unconference” format – only introduced to Autodesk University in very recent years – Palma served as moderator and discussion director. The smaller, highly interactive session focused on the transitions required in the move from 2D documentation to 3D documentation. Additional topics included making use of BIM in the structural engineering documentation process, presenting designs and documents in new ways beyond the traditional 2D views, and involving other BIM team members in the integrated project delivery (IPD) process.

About 20 participants arrived ready for a lively discussion, engaged Palma’s expertise and left survey reports with comments such as:
“I enjoyed the interaction with other professionals in the industry with similar problems.”
“Great Class/Discussion!!!”
“I love this format. Best class.”
Courses Taught at Ideate: Revit Architecture Fundamentals, Revit Architecture Beyond the Basics, Revit Architecture Families, Revit Architecture for Project Managers Workshop, AutoCAD Fundamentals, AutoCAD Update, AutoCAD Architecture Fundamentals


Cross-Utilization Strikes a Chord in How Suite It is!

Up for discussion in the presentation of Ideate Senior Application Specialist Teresa Martin were Autodesk Revit, 3ds Max Design, Navisworks, and Quantity Takeoff. The session, entitled “How Suite It is! Leveraging Autodesk Design Suites from Schematic Design to Construction,” focused on using Autodesk Design Suites to leverage workflow processes from the humble napkin-sketch beginning to a construction model through post-occupancy.

By its very nature, suites was a complex teaching assignment in the tightly constrained format of AU. Martin adhered to the topic by focusing on the reasons behind the bundling and pointed out the advantages inherent in having design suites.

The class was scheduled at an eye-opening 8:00 a.m. on day two of AU, and about 90 showed up ready to explore suites. During the question and answer period which lasted about 15 minutes, attendees had a range of queries including “What classes should I attend next,” “How can I find out more about Autodesk Sketchbook designer and/or Showcase,” and “Is the Sketchbook designer available on the IPad?” Additional questions pertained specifically to Navisworks and its interface with Revit. Teresa answered all, and regarding Navisworks she discussed the switchback feature along with some other settings to answer specific questions.

The survey comments summarize the responses of attendees:
“As a general overview of the purpose and value of the multiple platforms that a Design Suite offers, the presentation did a superior job demonstrating the viability of the cross-utilization of each.”
“…small video glitch. Otherwise great show.”
“Excellent topic and well taught.”
“Good to think about using some of these tools in smaller bites to help ease people into Revit.”
“Interesting and informative! Thanks Teresa!”
“Presenter was very good.”
“She gave me insight as to why the suite packages are offered. She sold me the value to my firm. Thank you.”
“Showed me how I can use other programs effectively. This is what I/we need to enter the wonderful world of BIM. Well done!!!!”
Courses Taught at Ideate: Revit Architecture Fundamentals, Revit Architecture Beyond the Basics, Revit Architecture Families, Revit Architecture for Project Managers Workshop, Navisworks Fundamentals, Green BIM Basics, Ecotect Fundamentals, BIM for Contractors
 


Lean Processes Session Challenges Industry Pros to Rethink Next Steps

David Haynes, AIA, LEED AP, and Ideate Director of Consulting, approached his session, “Adopting Lean Processes in BIM,” with a goal to present the leading edge of an industry wave and provoke thought. While many AU presentations address hot topics such as new solutions and new case uses for familiar solutions, Haynes prefers to peer just over the horizon and explore emerging industry ideas and trends. Spirited controversy and animated discussions result, and the Lean session was no exception.

Haynes’ session posed a number of premises. One is that the contemporary recession has changed and will continue to change the AEC industry. Haynes contends about the emerging economy, “The way you went into the recession is not the way you will come out. AEC design teams who go Lean will make headway. Those who do not are in greater danger of falling behind and not catching up.”

In the past, according to Haynes, “Architects only wanted to create designs so glorious that their customers would weep. Now, design no longer entails the Building Information Modeling (BIM) luxury of ‘we did it because could.’ Architects are charged with designing what the customer wants and is willing to pay for.” Haynes adds, “As Architects, many of us were educated to believe that architecture is a solitary vision. Then we encounter Lean practices and the need for collaboration. Lean Design’s premise is that no one mind is better, that the consensus brings together what the best of the collective mind can devise.”

Since BIM has given architects, engineers, and contractors new tools and revised workflow processes, it is easy to imagine that higher profits naturally result. In truth, some firms readily realize gains with BIM while others find gains elusive.

The session, designed for business owners and firm principals, explored ways the success of Lean practices, primarily from the manufacturing world, can translate to the service-oriented world of architecture and engineering for increased profitability, greater efficiency, and a better total “design and build” experience for the client.

Haynes fully anticipated that his session would be perceived as edgy. What surprised him was how many among the healthy turnout – 120 or so attendees on the final day of AU – acknowledged a sense of change underway in the industry. Some wanted even greater depth of discussion than the session format allowed. One attendee left a post-class comment related to having hoped for more exploration into Six Sigma, a specific aspect of Lean practices in which stable and predictable process results are achieved, and quantifiable financial returns can be measured.

Another attendee also indicated a desire to delve deeper into the topic by saying, “Like many seminars there is an assumption a project is very straightforward. I would like to see how Disney might attempt this.”

The question and answer period extended for a full 20 to 25 minutes, with participants entering into their own cross-discussions facilitated and moderated by Haynes. As Haynes says, “There was no snoozing. And afterward, people stayed to talk.”

Survey comments indicate how engaging the session turned out to be:
“Good and timely presentation.”
“Great class.”
“Have David back!”
“A good reality check on our profession.”
“I have decided the speaker is my new mentor.”
“…the speaker was compelling and knowledgeable.”
“This was of great value to me.”
“Thoroughly enjoyed it.”
“One of the best explanations of implementation and practical Lean process I’ve heard. Many only talk about construction and manufacturing side benefits and processes. Thank you.”
“This is the best class I have ever attended at AU.”
Consulting Services with David and Ideate: to architects, engineers, contractors and owners in transforming design technology solutions. David is the Ideate Technical Team leader.



February 8, 2012

Avoid Takeoff Blunders in Revit Projects

The days of actually sharing Building Information Models are finally upon us. At Ideate we’re seeing a high degree of RVT sharing going on out there, not only across A/E disciplines but also into the construction field. Obvious hurdles still abound as we struggle to define BIM deliverables and what constitutes a “constructability” model but it’s exciting nonetheless to see so much progress in the past two years.

As we see more owners and contractors performing detailed takeoff analysis derived from Revit models we’ve become more attuned to the unique challenges of trying to leverage someone else’s data. It’s difficult enough to “walk through” a project you are not familiar with, and even more difficult to comfortably assess the data behind the model when you yourself are not the creator. 

To that end, I thought I’d share a few tips to help avoid some of the common mistakes that can be made when using Revit for quantity takeoff purposes. 

Phasing and Schedule Data Challenges
Architects and Engineers most typically use phases to graphically represent demolition, existing, and new construction conditions within a project. This allows, for example, items that are existing to be shown in a lighter lineweight, and items that are being demolished to either be displayed as dashed or not be shown at all. Ideate has had many support cases where quantity takeoffs were not giving the expected results due to phasing considerations. Using the wrong Phase Filter on a Schedule can radically impact the takeoff results. 

Each of Revit’s model elements are assigned a Phase Created and Phase Demolished value, as shown. These assignments give Revit the ability to display Views and Schedules as a snapshot in time. When the schedule is created a Phase is identified, as shown. This acts as a filter on the schedule.  In this example, any Wall that has a Phase Created value of “Phase II” will not display in the schedule.

Consider the simple floor plans shown for Phase I and Phase II of the same project. Each schedule has a different combination of Phase and Phase Filter settings. These phase settings can be edited from the Properties dialog when the Schedule is the active view.

Note that the temporary wall, shown dashed, is visible in both the Floor Plan View and in the Schedule. Depending upon the Phase Filter the temporary wall could be excluded even if the Phase is set to “Phase I.” Additionally, this schedule includes walls that are existing. Is this desired for your takeoff?

In Phase II, another room is created. The Revit Schedule, when set to Filter on “Phase II” can include only the items created during this Phase OR can be set to show both the new items and the older items. The Phase Filter called “Show Previous + New” will cause the Existing, Phase I, and Phase II items to display. It cannot, however, be used to only show Phase I and Phase II items and it will also not include any temporary items from the previous phase. 

So, Before You Start the Takeoff...
If you’re using someone else’s RVT to generate a takeoff, bear these tips in mind:
  1. Start by reviewing the Phase settings which can be found on the Manage tab under Phases. Review both the Phase and Phase Filter Settings to understand the lay of the land. 
  2. In order to get a complete picture of the elements on a per phase basis, you may want to have a Schedule for each Phase and use only the “New” Phase Filter. 
  3. Additionally, while not as prevalent, Design Options present the exact same set of issues with respect to quantity takeoffs. Revit Schedules may or may not reflect information about the set of data upon which you should be basing the takeoff. Design Option data creates duplicate elements. In some instances the Design Option data may actually be old and not relevant to the bid. 
  4. The best course of action is to review the Design Options directly with the architect or engineer prior to starting the takeoff.
  5. Lastly, Ideate BIMLink can provide peace of mind to the quantity takeoff process by including the relevant phased and design option-based information in-line with the element data. In this short Quantity Takeoff and Phasing video you’ll see how Ideate BIMLink can represent all element instances. You can then use Excel to decide which elements should be part of your takeoff.

Learn more about Ideate BIMLink at www.ideatebimlink.com.

Want more information on Phasing or Design Options? Ideate offers custom online training during convenient lunchtime hours on these and other construction-related topics. Review the online Revit training topics then contact Ideate's Training Department for more information.


Glynnis Patterson is a registered architect and the Director of Software Development at Ideate, Inc. In a previous life Glynnis spent many hours looking at blueprints with a scale, highlighters, and a scratch pad to develop detailed cost estimates.