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Webinar

Geosynthetic Reinforced Soil Integrated Bridge System

Date & Time: 
Mon, 06/27/2016 - 11:30am - 1:00pm
Location: 
Korda/Nemeth Engineering, Inc., 1650 Watermark Drive, Ste 200 Columbus, OH 43215
  • Offered for free to Central Ohio Section ASCE Members
  • Seating is limited to the first 25 people
  • Bring your own lunch

Purpose and Background
By combining GRS into an integrated bridge system (IBS), bridges can be built faster with substantially lower costs as compared to conventional foundation alternatives. This webinar presents an overview of geosynthetic reinforced soil (GRS) as an accelerated construction technology for single span bridges. It discusses the benefits and limitations of GRS-IBS in highway applications. Through presentation by FHWA engineers, participants will gain a better understanding of the fundamentals of GRS technology, its benefits, design and construction considerations, and performance.

RSVP to brooks.vogel@korda.com by Thursday, June 23, 2016.

Introduction to Rock Mechanics

Date & Time: 
Wed, 06/15/2016 - 12:00pm - 1:00pm
Location: 
S&ME, Inc., 6190 Enterprise Court, Dublin OH 43016
  • Offered for free to Central Ohio Section ASCE Members
  • Seating is limited to the first 25 people
  • Bring your own lunch

Purpose and Background
In their professional assignments, civil engineers frequently encounter rock as an engineering material; however, rock mechanics are almost never taught at the undergraduate level, and it is rarely taught at the graduate level. This webinar is a very first orientation to the field of rock mechanics and engineering that civil engineering professionals may use as a stepping stone in furthering their education in the field. It discusses the mechanical and hydraulic properties of intact rock, rock fractures and rock masses. It also discusses the difficulties in rock mass characterization and modeling.

Geotechnical Analysis for Rock-Socketed Drilled Shaft

Date & Time: 
Mon, 05/23/2016 - 11:30am - 1:00pm
Location: 
E.L. Robinson Engineering, 1801 Watermark Drive, Suite 310, Columbus, OH 43215
  • Offered for free to Central Ohio Section ASCE Members
  • Seating is limited to the first 25 people
  • Bring your own lunch

Purpose and Background
Drilled shafts are a common foundation selection for all types of structures. When the soil is relatively poor quality and the structure loads are relatively large, the shafts are often drilled through the poor soils into underlying rock mass is present. These shafts could be founded or seated on the rock mass surface, or they could be drilled into the rock mass to form a rock socket. This webinar concentrates on the geotechnical analysis for drilled shafts that derive their axial and lateral resistance from rock sockets. The webinar is based upon Load and Resistance Factor Design (LRFD) methodology as per the specifications of the American Association of State Highway and Transportation Officials (AASHTO). It discusses load transfer models for axial and lateral behavior of rock sockets. It also discusses selection of appropriate rock parameters and methods of axial and lateral load analysis.

Gray Areas of Responsibility in Masonry Design

Date & Time: 
Mon, 05/16/2016 - 11:30am - 1:00pm
Location: 
WD Partners, 7007 Discovery Blvd Dublin, OH 43017
  • Offered for free to Central Ohio Section ASCE Members
  • Seating is limited to the first 25 people
  • Bring your own lunch

Purpose and Background

Introduction to Jet Grouting

Date & Time: 
Thu, 06/02/2016 - 11:30am - 1:00pm
Location: 
E.L. Robinson Engineering, 1801 Watermark Drive, Suite 310, Columbus, OH 43215
  • Offered for free to Central Ohio Section ASCE Members
  • Seating is limited to the first 25 people
  • Bring your own lunch

Purpose and Background
Jet grouting is defined as the injection of a fluid grout at high pressure to erode the soil partially replacing it and creating a soil-crete. This method is often used to for structural support, creating low permeability barriers, shoring, and underpinning. Applications are many, including liquefaction mitigation, controlling structure settlement, roof support for tunnels, mitigating karst subsidence, slope reinforcement, structural support, and more.

Designing and Implementing Separated Bikeways

Date & Time: 
Wed, 03/09/2016 - 11:30am - 1:00pm
Location: 
Burgess & Niple, 5085 Reed Road, Columbus, OH 43220
  • Offered for free to Central Ohio Section ASCE Members
  • Seating is limited to the first 25 people
  • Bring your own lunch

Purpose and Background
Recent advances in bicycle facility design guidance have led to increased demand from government agencies and the public to implement many of these innovative treatments. As more of these facilities are being implemented, users are recognizing the host of safety benefits and greater comfort level generated from the increased separation from automobile traffic and enhanced intersection treatments. Agencies throughout the country are using the design guidance recently issued within the National Association of City Transportation Officials Urban Bikeway Design Manual in association with the guidance set forth in the established US manuals such as the AASHTO Guide for the Development of Bicycle Facilities and MUTCD to implement these facilities.

Geotechnical Investigations in Karst

Date & Time: 
Fri, 03/11/2016 - 11:30am - 1:00pm
Location: 
S&ME, Inc., 6190 Enterprise Court, Dublin OH 43016
  • Offered for free to Central Ohio Section ASCE Members
  • Seating is limited to the first 25 people
  • Bring your own lunch

Purpose and Background
Carbonate and evaporite geologic formations underlie a large portion of the world. These formations contain soluble compounds that result in portions of the formations dissolving over time to produce cavities, conduits, enlarged joints, caves, etc. The landforms resulting from these features are referred to as karst. Karst poses many geotechnical concerns such as subsidence, sinkholes, uneven structural support, high groundwater production, and groundwater sensitivity to contamination.

Locating and characterizing karst features at depth is a challenging task. Even large features can easily be missed by conventional borings and may not be detectable by some geophysical methods. This makes it necessary to employ a specially focused investigation that incorporates geological, geotechnical, statistical, and geophysical approaches to evaluate risks and determine the appropriate level of investigation.

This presentation includes a brief introduction to karst and the associated geotechnical issues. The instructor discusses and provides examples of methods and strategies for investigating and characterizing various aspects of karst.

Using HEC-RAS 5.0 for a Coupled 1D/2D Analysis

Date & Time: 
Fri, 02/12/2016 - 12:00pm - 1:00pm
Location: 
Stantec, 1500 Lake Shore Dr., Columbus, OH 43204
  • Offered for free to Central Ohio Section ASCE Members
  • Seating is limited to the first 25 people
  • Bring your own lunch

Purpose and Background
HEC-RAS V5.0 has the ability to model runoff in a 2D environment coupled with traditional 1D modeling. There is also the ability to apply precipitation to the 2D surface, as well as external hydrographs and other boundary conditions to the 2D surface. This ability allows the modeler to fully capture the nature of the runoff event flow patterns and depths.

Visualization of the hydraulic results is extremely useful in estimating flooding extents, determining key causes of flooding and developing mitigation strategies. The 2D component allows the modeler to fully account for overbank storage volume plus the diversion and return of the overbank flow to the channel. Visual depictions of the floodwave assist with presentation to the public, clients and for reports and submittals.

This webinar focuses on a more in-depth look at the use of HEC-RAS 5.0 1D/2D coupling ability. The webinar discusses briefly the use of RAS Mapper in the development of the 2D model, preparing and importing composite surfaces to include “proposed” conditions in the modeling, with an emphasis on the coupling of the 1D and 2D portions of the model in RAS 5.0. Participants who wish to attend this webinar must be well-versed in using previous software versions of unsteady HEC-RAS and GIS software.

RSVP to Mark.Seidelmann@stantec.com by Wednesday, February 10, 2016.

Selected Topics Regarding Geosynthetic Clay Liners

Date & Time: 
Mon, 02/22/2016 - 11:30am - 1:00pm
Location: 
S&ME, Inc., 6190 Enterprise Court, Dublin OH 43016
  • Offered for free to Central Ohio Section ASCE Members
  • Seating is limited to the first 25 people
  • Bring your own lunch

Purpose and Background
Geosynthetic clay liners (GCLs) are very thin layers of bentonite sandwiched between two geotextiles and then needle-punched or stitch-bonded together to form a barrier to liquids and gases. They first appeared in 1986 to absorb leakage through overlying geomembranes in landfill liner systems. Currently, they are being used for both liner and cover systems in myriad environmental, transportation, hydraulic and private development applications. There are approximately twenty manufacturers and the worldwide annual usage is about 150 million square meters. That said, the acceptance and use of GCL's by geotechnical engineers has not progressed nearly as rapidly as it has with other geosynthetic materials like geomembranes, geogrids, etc. Perhaps the main reasons are that compacted clay liners (CCLs) are deeply entrenched in the academic backgrounds of geotechs and also subsequent field experience over the years. This is reflected in current environmental regulations, few of which allow for GCLs to replace or even augment CCLs. This webinar presents the most relevant topics/aspects involving GCLs, including cases of inadequacies in the areas of shear strength and hydraulic conductivity. The webinar also covers the most current GCL testing protocols. In that light, the webinar offers a point-and-counterpoint of GCLs vs. CCLs in both liners and covers. It describes a generic specification with not only suggested limiting test values but also recommendations on quality control and quality assurance.

Modeling, Design, 3-D Printing of Multiscale Materials and Structures

Date & Time: 
Wed, 12/02/2015 - 11:30am - 1:00pm
Location: 
2600 Corporate Exchange Dr., Columbus, OH 43231
  • Offered for free to Central Ohio Section ASCE Members
  • Seating is limited to the first 25 people
  • Bring your own lunch

Purpose and Background
Are you interested in new materials that can revolutionize structural design, architecture and sustainability of infrastructure? Have you ever wondered about applications of 3-D printing to Civil Engineering, and sought out approaches to make this technology scalable for large-scale applications? This webinar provides a glimpse into exciting new technologies that address the demand for high-performance materials with superior properties, flexibility, and durability, as a new design paradigm from the molecular scale upwards fundamentally transforms our ability to create novel materials. This webinar covers basic tools and applications in multiscale modeling, synthesis and characterization of structural materials with features at multiple length-scale, including the application of additive manufacturing (3-D printing) and its link to computer optimization. This webinar presents a case study to cover modeling, design, 3-D printing and material characterization of hierarchical bio-inspired composites. It discusses new concepts in autonomous construction through automated 3-D printing of complex material systems. The webinar, accessible to a broad audience, concludes with an outlook to future challenges and opportunities for the Civil Engineering profession in the context of material innovation.