Vehicle Barrier Analysis

Marvin Liebler, PE

Course Outline

1.             Introduction
1.1          Non-impact barriers – general
1.2          Low impact barriers – general
1.3          High impact barriers – general
2.             Non-impact barriers
2.1          Channelizing devices
2.2          Grade crossing traffic control devices
3.             Low impact barriers
3.1          Jersey Barriers
3.2          Cable barriers – general
3.2.1     Cable sag
3.2.2     Cable calculations – force input
3.2.3     Cable calculations – kinetic energy input
3.2.4     Temperature effects in cables
3.3          Bollards – general
3.3.1     Soil assumptions
3.3.2     Force impact, no grade restraint
3.3.3     Kinetic energy impact, no grade restraint
3.3.5     Post and Pier Design
4.             High impact barriers – general
4.1          Anti-ram barrier standard
4.2          Types of high impact barriers
4.3          Estimation of barrier forces
4.3.1     Rigid barrier forces
4.3.2     Flexible barrier forces
4.4          Wall design
Appendix 1
Appendix 2

This course includes a multiple choice quiz at the end, which is designed to enhance the understanding of the course materials.

Learning Objective

At the conclusion of this course, the student will:

• Learn general characteristics of three barrier types;
• Study channelizing devices;
• Learn grade crossing control devices;
• Study train detection method;
• Learn uses of Jersey barriers;
• Study typical Jersey barrier;
• Learn 2009 IBC requirements for vehicle barriers;
• Find types of cables used for cable barriers;
• Calculate cable sag without and with prestress;
• Find barrier cable deflections and forces for force input;
• Find barrier cable deflections and forces for K.E. input;
• Study temperature effects on cables;
• Learn spring rate of soil and values for different soil types;
• Analyze bollard for force impact, no grade restraint;
• Learn Newton-Raphson iteration method for solving equations;
• Analyze bollard for K.E. input, no grade restraint;
• Study bollard behavior when restrained at grade;
• Learn pier design;
• Study high impact barriers – general;
• Learn the Anti-ram barrier standard;
• Find engineering planter guidelines;
• Study the characteristics of barriers, cuts, and ditches;
• Learn to estimate forces for a rigid barrier;
• Learn to estimate forces for a flexible barrier;
• Study reinforced concrete wall barrier design; and
• Calculate moments for a doubly reinforced beam.

Intended Audience

Structural engineers
Structural designers
Architects
Construction inspectors
Facilities planners

Benefit to Attendees

The student will now have a detailed knowledge of the characteristics, analysis, and design of typical motor vehicle
Barriers.

Course Introduction

This course provides the tools to the student for analyzing non-impact, low impact, and high impact motor vehicle barriers. Procedures are given for designing cable barriers, bollards, and rigid walls.

Course Content

In this lesson, you are required to download and study the following course content in PDF format: