ACRYLITE SOUNDSTOP Crash-Tested Noise Barriers. ACRYLITE SOUNDSTOP (formerly PARAGLAS SOUNDSTOP )

Transcription

1 ACRYLITE SOUNDSTOP Crash-Tested Noise Barriers. ACRYLITE SOUNDSTOP (formerly PARAGLAS SOUNDSTOP ) 2017 IAHE Conference Lisle, IL

2 Evonik & Armtec Nathan Binette Product Manager for ACRYLITE Soundstop since 2005 Prior experience in various Engineering / Manufacturing roles for Evonik. Michael Pruden US Sales Director (Soundwalls) for Armtec since 2017, joined Armtec in Years prior experience in Highway Construction projects with Mechanically Stabilized Earth Market.

3 Evonik & Armtec Evonik Cyro manufactures transparent ACRYLITE SOUNDSTOP noise barrier materials & systems. Evonik is a large, diverse chemical company with more than 30,000 employees worldwide and ~$20B annually in sales. Evonik has been producing transparent noise barriers for more than 30 years with more than 30 Million Square Feet installed globally. Armtec produces absorptive Durisol noise barrier panels and related construction materials and products. Armtec is the exclusive North American partner for the crash-tested ACRYLITE SOUNDSTOP TL-4 system and joint developer of new (pending) crash tested systems to be offered in Armtec employees approximately 2,000 across 48 offices.

4 Places where ACRYLITE SOUNDSTOP is installed Canada Slovakia Netherlands Germany Poland France Austria Slovenia Hungary Israel Hong Kong Taiwan Greece Portugal Japan China Malaysia USA Czech Republic Ireland Thailand Turkey Italy Australia Mauritius Finland Spain Switzerland Russia Great Britain Chile South Korea Sweden New Zealand

5 Evonik & Armtec Evonik produces the SOUNDSTOP windows Armtec produces absorptive, cementitious panels, posts, design, drawings... turn-key, single source supplier.

6 ACRYLITE SOUNDSTOP Crash-Tested System with Transparent (GSCC) Panels Toledo, Ohio I-475.

7 ACRYLITE SOUNDSTOP Crash-Tested System with Transparent (GSCC) Panels San Clemente, CA I-5

8 ACRYLITE SOUNDSTOP Crash-Tested System with Solid/Opaque (GSCC) Panels Long Beach, CA Rt 405 over Atherton St.

9 ACRYLITE Soundstop Crash-Tested System with Translucent (GSCC) Panels

10 What is GSCC? (ACRYLITE SOUNDSTOP GSCC)

11 EN 1794 Fragment Retention Test ACRYLITE Soundstop GSCC Clear Panels 880 lb pendulum generating an impact force of 53 kips or 6 KJ intended to break the panel to evaluate fallout. Evonik s ACRYLITE Soundstop GSCC panels achieve the highest rating of Class 4 (no fragments) even after 20 years of weathering.

12 Typical TL4 Test Video of Test

13 Typical TL4 Test Screen Capture from Video

14 ACRYLITE SOUNDSTOP TL4 Test NCHRP 350

15 Crash Tested Bridge (TL-4) System According to NCHRP 350 T-L4 criteria Mounted to a crash rated concrete bridge rail, in zone of intrusion where crash resistance is needed. Approved for use by the FHWA May 18, 2005.

16 ACRYLITE SOUNDSTOP TL-4 Crash- Tested System

17 Features of the ACRYLITE SOUNDSTOP TL-4 System Crash Tested, FHWA Approved for use in Clear Zone ACRYLITE Soundstop TL4 system is tested to NCHRP 350 Test Level 4 GSCC panels provides fragment protection Longitudinal rails limit intrusion between posts and distribute loads Longitudinal rails provide redundancy to ensure posts remain attached to structure following a crash event. Low Deadload 3.0 lbs/sq ft (12mm) to 6.1 lbs/sq ft (25mm) panels only. 169 lbs per linear foot including W8x40 posts (111 lbs w/o posts)* *Assumes 5 of barrier on top of a 3 high parapet. Durability 50+ Years Service Life, first project ACRYLITE project installed in 1977, In use for over 24 years in North America.

18 BUT NCHRP 350 criteria have been superseded by MASH MASH is the AASHTO Manual for Assessing Safety Hardware which presents uniform guidelines for crash testing highway safety features. MASH supersedes NCHRP 350 criteria but does not supersede any guidelines for the design of roadside safety hardware per the AASHTO Roadside Design Guide (RDG). MASH Changes include: Which translates to a need for taller longitudinal barriers. Whereas a 32 high barrier would meet NCHRP 350 TL4 criteria it is expected that a minimum 36 high barrier is required to meet MASH TL4 conditions

19 RDG aside, Most Crash-Tested Noise Barrier Applications are on Bridges As such it is also necessary to consider the AASHTO LRFD Bridge Design Specifications. The Soundwall Chapter (15) within the AASHTO LRFD code states: Sound barrier systems, consisting of a traffic railing and a sound barrier, that have been successfully crash-tested may be used with no further analysis. In lieu of crash testing, the resistance of components and connections to Extreme Event II force effects may be determined based on a controlled failure scenario with a load path and sacrificial elements selected to ensure desirable performance of a structural system containing the soundwall While possible to design around crash-testing most states value the simplicity, security, and reduced risk of an approved crash-tested system.

20 Evonik / Armtec are Developing TL4 and TL5 Noise Barriers Systems to be Crash-Tested

21 Evonik / Armtec are Developing TL4 and TL5 Noise Barriers Systems to be Crash-Tested

22 Evonik / Armtec are Developing TL4 and TL5 Noise Barrier Systems to be Crash-Tested First simulations have already been conducted by the Texas Transportation Institute. Target crash testing by Fall Expected improvements include: Application of new MASH standard Addition of a TL5 system though separate tests will be required, TL4 and TL5 noise barrier systems are expected to be one and the same since taller TL5 barriers will predominantly account for higher TL5 impact criteria. Reduced deadload from approximately 169 lbs to 140 lbs per linear foot (assumes 5 ft high noise barrier on top of a 3 ft high longitudinal barrier). Increased post span from 8ft to 10ft where allowable reduces installation time and cost. Modular style framed panels in lieu of panels fixed by steel angles reduces installation time and cost.

23 Crash Test Comments That is the most stable TL4 Crash test I ve ever seen. Senior FHWA Official in the Office of Safety Design. the crash performance of the concrete safety shapes is essentially improved by limiting vehicle climb to some extent and by significantly reducing the roll angle of larger vehicles. Excerpt from FHWA approval letter

24 Translucent Option

25 Basic Structure Mount (Non-Crash Tested) Top Mounted, Open Top

26 Basic Structure Mount (Non-Crash Tested) Rear Mounted, Drop-in Ready Fit (framed) Panels

27 ACRYLITE SOUNDSTOP Ready Fit Panels

28 Do ACRYLITE SOUNDSTOP Noise Walls really mitigate the noise?

29 What Type of ACRYLITE to Use? Custom Designs, Opaque Options

30 Maintenance Issues Perceptions vs. Reality Will it turn yellow? Do I have to do windows? What about graffiti? Do I have to sand and buff out scratches? Answers No, No, No Problem, and No

31 Will it turn yellow? No! All plastics are not the Same! On left polycarbonate after ~ 7 yrs exposure, on right ACRYLITE Soundstop after ~ 7 yrs

32 ACRYLITE SOUNDSTOP after 7 yrs exposure

33 RT 201 Binghamton, NY Picture Date: January 2006

34 Picture Date: February 2006 Picture taken after a fresh snowfall

35 Picture Date: May 2006 Wall has not been cleaned except from rainfall

36 Graffiti Removal

37 Scratch Removal

38 THANKS FOR YOUR ATTENTION!!