VIKA Companies at HxGN LIVE VIKA Virginia, VIKA Maryland, VIKA Capitol Façade Surveys, Building Collapse Analysis, Rescue Support, Monitoring and

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2 VIKA Companies at HxGN LIVE VIKA Virginia, VIKA Maryland, VIKA Capitol Façade Surveys, Building Collapse Analysis, Rescue Support, Monitoring and Repair Planning Ryan Scott, Senior Project Manager at VIKA Companies 8180 Greensboro Drive, Suite 200 Tysons Corner, Virginia June 3, 2013

3 COMPANY OVERVIEW Civil Engineering, Planning, Landscape Architecture, Land Surveying and Sustainable Design firm, founded in employees Licensed in DC, MD, VA, PA, WV, DE, GA, KY, CT, MA, OH, FL & NJ Completed over 2,000 major projects in the Washington, DC Metropolitan area LIDAR / High-Definition Laser Scanning since 2010 CURRENTLY HAVE: ScanStation C10 (1) Cyclone REGISTER (2) Cyclone MODEL (2) CloudWorx for AutoCAD (2) Cyclone II TOPO (2) 3D RESHAPER (1)

4 COMPANY OVERVIEW VIKA has remained prominent in the field of surveying for 30+ years through our commitment to state-of-the-art technology and by utilizing the latest surveying equipment, including fully robotic and reflectorless total stations for conventional tasks, along with real time Kinematic (RTK) GPS Positioning throughout the greater DC area.

5 DISCUSSION TOPICS FAÇADE SURVEYS BUILDING COLLAPSE ANALYSIS RESCUE SUPPORT MONITORING AND REPAIR PLANNING

6 FAÇADE SURVEY

7 FAÇADE SURVEYS Locates all features Collects enormous amount of data in short time Creates exact positioning points of façade elements in 3D model Provides data to compile a set of existing condition plans for use by Architect/Structural Engineer Elevations Floor Plans 3D Models

8 RESIDENTIAL BUILDING, IMAGE OF BRICK FAÇADE TO DETERMINE STRUCTURAL INTEGRITY FAÇADE SURVEYS

9 RESIDENTIAL BUILDING, SCANNED IMAGE OF BRICK FAÇADE TO DETERMINE STRUCTURAL INTEGRITY FAÇADE SURVEYS

10 SET OF EXISTING CONDITION PLANS FOR USE BY ARCHITECT/STRUCTURAL ENGINEER FAÇADE SURVEYS

11 PLAN VIEW OF RESIDENTIAL BUILDING FAÇADE SURVEYS

12 3 DIMENSIONAL FLYOVER OF MIXED-USE BUILDING FAÇADE SURVEYS

13 CONCEPTUAL ARCHITECTURAL PLANS FOR MIXED-USE COMMERCIAL OFFICE BUILDING FAÇADE SURVEYS

14 HISTORIC IMAGE OF RESIDENCE, EXTERIOR BUILDING AS-BUILT FAÇADE SURVEYS

15 HISTORIC RESIDENCE, EXTERIOR BUILDING AS-BUILT (SCANNED IMAGE) FAÇADE SURVEYS

16 BUILDING COLLAPSE ANALYSIS Partially Collapsed Garage

17 BUILDING COLLAPSE ANALYSIS Performed total of 135 scans Used data to determine plumbness of all building columns and interior walls Provided data to verify elevations of all precast floors Created 3D models to verify plumbness of all building columns, spandrels and interior walls Compiled elevation exhibits of double-tees

18 PARTIAL COLLAPSE OF A SIX-LEVEL PARKING GARAGE, APPROXIMATELY 93,000+ SQ FT PER LEVEL, BIRDS-EYE-VIEW BUILDING COLLAPSE ANALYSIS

19 PARTIAL COLLAPSE OF A SIX-LEVEL PARKING GARAGE (SCANNED IMAGE) BUILDING COLLAPSE ANALYSIS

20 PARTIAL COLLAPSE OF A SIX-LEVEL PARKING GARAGE (SCANNED IMAGE) BUILDING COLLAPSE ANALYSIS

21 MONITORING AND REPAIR PLANNING Partially Collapsed Garage

22 MONITORING AND REPAIR PLANNING Performed all Lidar scanning in a 10-day period Captured 3 dimensional data of remaining structure of all 6 levels of garage Columns Slab edge Girder Provided dimensions for structural elements Assisted structural engineer with analysis of integrity of remaining structure Used traditional surveying to monitor structure during scanning activities

23 PARTIAL COLLAPSE OF A SIX-LEVEL PARKING GARAGE MONITORING AND REPAIR PLANNING

24 SIDE VIEW SCAN OF PARKING GARAGE MONITORING AND REPAIR PLANNING

25 3-DIMENSIONAL DATA OF REMAINING STRUCTURE MONITORING AND REPAIR PLANNING

26 DIMENSIONS FOR STRUCTURAL ELEMENTS OF PARTIAL COLLAPSE OF A SIX-LEVEL PARKING GARAGE MONITORING AND REPAIR PLANNING

27 USED TRADITIONAL SURVEYING TO MONITOR STRUCTURE DURING SCANNING ACTIVITIES MONITORING AND REPAIR PLANNING

28 Time constraints Overall size and scope Uncertain of structural integrity Working around construction Cleanup PROJECT CHALLENGES

29 BUILDING COLLAPSE ANALYSIS Partially Collapsed Warehouse

30 BUILDING COLLAPSE ANALYSIS Active warehouse 400,000+ sq ft facility Collapsed during working hours Sudden collapse, buckled at least 2 walls causing domino effect Ongoing scanning, 24 hours a day Scanner setup every 150 ft in each row to collect data for plumbness of rack system Assisted steel contractor with fabrication of steel support systems on selective aisles

31 400,000 SQ FT, ACTIVE WAREHOUSE BUILDING COLLAPSE ANALYSIS

32 INTERIOR RACKS OF COLLAPSED AREA USING 3D RESHAPER BUILDING COLLAPSE ANALYSIS

33 INTERIOR RACKS OF COLLAPSED AREA (SCANNED IMAGE) BUILDING COLLAPSE ANALYSIS

34 IMAGE OF WAREHOUSE RACK SYSTEM BUILDING COLLAPSE ANALYSIS

35 SCAN OF WAREHOUSE RACK SYSTEM BUILDING COLLAPSE ANALYSIS

36 SCANNED IMAGE THAT ASSISTED STEEL CONTRACTOR FOR FABRICATION EFFORTS BUILDING COLLAPSE ANALYSIS

37 RESCUE SUPPORT Partially Collapsed Warehouse

38 RESCUE SUPPORT Performed around the clock monitoring and data collection using conventional surveying and scanning equipment Coordinated with emergency personnel to provide structural monitoring in unstable areas Provided immediate analysis of data to support rescue efforts while working in unstable areas of collapsed building Used data to determine structural integrity of building

39 PROVIDED IMMEDIATE ANALYSIS TO SUPPORT RESCUE EFFORTS RESCUE SUPPORT

40 AROUND THE CLOCK MONITORING, RECOVERY EFFORTS RESCUE SUPPORT

41 DATA COLLECTED TO DETERMINE STRUCTURAL INTEGRITY (SCANNED IMAGE) RESCUE SUPPORT

42 MONITORING AND REPAIR PLANNING Partially Collapsed Warehouse

43 MONITORING AND REPAIR PLANNING Completed scan of exterior and interior of building using Point Cloud data Rescanned select portions of damaged warehouse after debris was removed Used traditional survey methods to monitor for structural movement Provided ongoing support during stabilization of buildings

44 IMAGE OF COLLAPSED ROOF MONITORING AND REPAIR PLANNING

45 SCANNED IMAGE OF COLLAPSED ROOF MONITORING AND REPAIR PLANNING

46 EXHIBIT SHOWING PLUMBNESS OF RACKS USED BY STRUCTURAL ENGINEER MONITORING AND REPAIR PLANNING

47 EXHIBIT SHOWING PLUMBNESS OF RACKS USED BY STRUCTURAL ENGINEER MONITORING AND REPAIR PLANNING

48 PROJECT CHALLENGES Confined urban space Immediately followed by historic storm event No electricity - traditional survey methods would not have been possible 110+ degrees Worked 24 hours a day for 2 weeks straight Aisles between each rack were only 5 ft wide - conventional survey methods could not be used as an accurate and/or efficient method for obtaining necessary data

49 BENEFITS OF USING A SCANNER

50 PENTAGON 9-11 TERRORIST ATTACK VIKA CREWS ONSITE BENEFITS OF USING A SCANNER

51 BENEFITS OF USING A SCANNER Field - 1 day in field for scanner vs. 2 weeks with field crews using traditional survey methods Office - Scanning and traditional data compilation, similar timeframes Millions of valuable, specific data points collected in a short time period Data can be gathered from remote locations without putting lives in danger Work can be conducted despite confined space and limited access

52 BENEFITS OF USING A SCANNER Assist in prevention efforts Verify structural integrity of existing buildings Check existing structures for plumbness Columns Girders Slabs Roof Structures Verify ongoing construction of high-rise building Confirm compliance with height restrictions

53 Q&A