Intelligent Tekla BIM Modeling Saves Time, Delivers Efficiency

Pinnacle Infotech

Durgapur, India

COMPANY

LOCATION

About the Project

4 Buildings – A, B, C, D

Escondido Village Stanford University (Graduate Residence) is one of the world’s leading teaching and research institutions, dedicated to find solutions for big challenges and preparing students. Stanford is known for its academic strength, wealth, proximity to Silicon Valley, and ranking as one of the world's top-ten universities. The project comprises of Four Residential Halls of Type 1 Construction (6, 8 & 10 stories) with a capacity of accommodating 2,400 beds. Currently, Stanford University has more than 55% increased student housing capacity, accommodating over 9,000 graduate students on campus.

1. Building A comprises of Blocks A1-1 with 9 floors, A1-2 with 11 floors, A1-3 with 7 floors, A-4 with 11 floors, A5 1 with 9 floors, A5 2 with 11 floors & A-13 with 7 floors.

2. Building B comprises of B3 with 7 floors, B5 -1 with 9 floors, B5-2 with 11 floors, B8 with 11 floors, B 14-1 with 9 floors & B14-2 with 11 floors.

3. Building C comprises of Blocks - C3 with 7 floors, C5-1 with 9 floors, C5-2 with 11 floors, C7-1 with 9 floors, C7-2 with 11 floors & C8 with 11 floors.

4. Building D comprises of Blocks D9 with 11 floors, D10 with 9 floors, D11 with 11 floors and D12 with 7 floors. The purpose of using BIM is for new construction of concrete structure at the project bid stage.

Pinnacle Infotech was shortlisted into the top 8 entries for the poster competition - “Creative Showcase by Tekla Customers” at Tekla User Days 2018 on 9th August, Chennai, India, showing how Tekla Software helped to resolve challenges for this project.

1. Total Precast Solution2. Integrated Structure and Cladding3. Glazing System Installed Off-site4. Moment Frame System5. Over 30#/SF lighter than CIP structure (Over 50,000,000 lbs. total)

Our scope of work for the project included:

1. Preparation of Shop Drawing / 2D Drawings for Construction - Tekla Detailing 2. Concrete Lift Drawings - Elevation Drawings

A. Project Type – ResidentialB. Location - Palo Alto, California, USA–C. Trades Covered: Precast Concrete StructureD. LOD: 400E. Software Used: Tekla 2016F. BIM Start Date: October, 2016G. BIM End Date: December, 2018H. Project Area: 1,994,455.22 sq. ft.

This Project Showcased in Top Entries of Tekla Poster Competition -

Project Specifications

Project Specialty

Scope of Work

Facts on the Project

Pinnacle Customer Success Story Pinnacle Infotech

www.pinnaclecad.com

I. Average Team Size: 10 EngineersJ. Architect: KSH ArchitectsK. Structural Engineer: John A. Martin & AssociatesL. Design-Build Pre-fabricator: Clark Pacific - Pinnacle Client http://www.clarkpacific.com/project/stanford-escondido-village-graduate-housing/M. Owner: Stanford UniversityN. Developer: Vance Brown

Four Buildings: Full Precast Structures Fully Prefabricated: 14,700 Precast Panels 1,835,000 SF Residences 1,025,000 SF Exterior Cladding Resilience: Designed to higher Class II Level than what is required by Code Over 30#/SF lighter than CIP structure (Over 50,000,000 lbs. total) 20% Smaller Foundation 4 Buildings Installed within 11 Months (with Cladding System) Building construction expected to commence in Fall 2017 with completion in 2021

for Vertical Elements, Detail Drawings3. 3D BIM Model Creation -A. Foundation - Earthwork in Excavation, Deep Foundations, Footings/Shallow Foundations, Pile Cap, Grade Beams, Footing Presentation, Foundation Walls & OthersB. Horizontal Structural Component - Slab on Grade, Floor Slabs, Topping Slabs, Beams, Joist, Embeds, Metal Deck, Structural Floor, Structural Roof, Concrete Curbs, Drop Panels, OthersC. Vertical Structural Components - Structural Walls, Structural Wall Openings, Shear Walls, Shear Wall Penetrations, Columns, Column Caps, Ramps, Stairs, Retaining Walls, Lintels, OthersD. Other Structural Components - CMU Walls, Construction Joints, Sleeves, Water Stop, Equipment Pads, Concrete Deadman, Reinforcement, OthersE. Pre-Cast Elements - Tilt Up wall Panels, Hollow Core Slab, Joist, Pile, Beams, Columns, Corbel, Stair, Connection Details, Culverts, Monolithic Blocks, Parapets, Barriers, Others

Multiple Users Working Across Different Zones: In this precast concrete project, more than 40 people are involved in various segments to execute the model. As a result, it is difficult to progress the project smoothly. We required an effective collaborative software platform to increase the productivity and execute the construction process flawlessly. A cloud server (Model Sharing) is required to easily access the model and file with different time zones separately

1. Challenge - Collaboration Issue -

The precast modelling project involved 2228 nos. of precast wall panels, 5290 nos. of ribbed floor panels, 1250 nos. of beam panels, 4436 nos. of columns are involved and it was challenging to execute the project within the short & stipulated time frame specified by Clark Pacific

Tekla Software helped multiple users to work simultaneously in cloud server across different time zones of the world. We could easily work in Tekla without any trouble using master model sharing.

Solution -

After completing the reinforcement of the one panel, we reinforced the panels easily from one panel to another through ‘copy special’ command. This avoided the repeated work and saved time.

Solution -

2. Challenge - Huge Number of Panels with Different Precast Elements

Pinnacle Customer Success Story Pinnacle Infotech

www.pinnaclecad.com

Preparing quality shop drawings for all the panels within a short time was difficult

Clone drawing preparation is one of the key facets of using Tekla software. Using this process we created shop drawings for similar panels. It helped to reduce time for creating shop drawings.

Solution -

3. Challenge - Time-Line Challenge for Shop Drawing Preparation

Solution -

Pouring is essential in this precast project to identify which part is poured at a particular time

Pouring is the most valuable option in Tekla. We showed the concrete model with different pouring in site.

7. Challenge - Need to Identify the Pouring

Solution -

Phasing is also essential for the purpose of representation and identification

Phasing showed the entire concrete model with different color regions (part by part or floor by floor). Consequently, it helped to easily identify a particular section of the entire concrete model.

8. Challenge - Need to Identify the Phasing

Selection & Visibility filter are also essential to select & identify a particular element or object from the entire model

9. Challenge - Need for Selection & Visibility Procedure

Working with “Numbering” system is a significant part of Tekla Software. If we required changing the Rebar Model, we have to execute “Perform Numbering” of this panel. “Perform Numbering” system helped us to easily get the bar mark of the Rebar from the model.

Solution -

Repeated use of components in precast panels likes embeds, hangers, lifters, couplers etc.

We created lots of custom components for the purpose of modeling and used those custom components in the model.

Solution -

5. Challenge - Time-Consuming to Use Repeated Custom Components (Hardware)

Difficult to get the BBS in the shop drawing after reinforcement of the panels

We could easily get the BBS of the rebars from Tekla.

Solution -

6. Challenge - Schedule Constrain for getting BBS

In this huge precast concrete project, it is difficult to maintain the numbering system for all the panels. “Number system” is very essential to identify the particular panels as well as reinforcement for the whole project.

4. Challenge - Difficulty in Maintaining the Numbering System of Reinforced Panel

Solution -Selection as well as Visibility Filter is another significant aspect of Tekla. The software helped to identify any object with ease from the entire model.

www.pinnaclecad.com

Difficult to calculate the number of panels for Site Transportation - as a result of which the Transport Cost of the Pre-cast Contractor get enhanced

“Lotting” is the most important feature in Tekla. This helped us to easily measure group assemblies for transporting to site. Moreover, from this option we calculated the numbers of units of panels carried by the vehicle and the size of the panel for suitable vehicle.

Solution -

10. Challenge - Difficulty in Calculating Panels for Site Transportation

Separate & specific environment required for drafting as well as model view for avoiding shifting of the model elements with changes in the drawings

In Tekla, the model and drawing environments are different, where we cannot move 'drawing' to the model environment at the same time. As a result, the final model was not

Solution -

11. Challenge - Need for Separate Environment for Drawing & Model View

1. Using Tekla we have successfully completed 80% of drawing submission2. Increased Work Efficiency, saving 40% time3. Flawless Collaboration among stakeholders, reducing errors, improving building perfor-mance

1. Using Tekla, we are getting more quality output with less effort2. Enhanced Quantity of Production at lesser time3. Ensured ease of access for maintenance provisions & facility management

Result

Conclusion

Tekla BIM implementation will help to simplify BIM adoption by streamlining project operations in public, private & government sectors. The next generation will work with cloud technology (Model Sharing). Tekla integrates with BIM to provide effective project solutions & collaborations. Tekla BIM streamlines project information management processes - document control, resolution of design problems by RFI management & more. It is a platform for model and information aggregation for BIM collaborations.

Road Ahead

Pinnacle Customer Success Story Pinnacle Infotech

edited/tampered with the shift in the model elements because of drawing change.