Playsafe Vehicle Barrier

Playgrounds that adjoin parking lots that do not have the required separation, existing curbing or barriers will require a vehicle barrier be placed between the parked cars and the playground. PalmSHIELD’s PlaySAFE vehicle barrier is a stout vehicle barrier system to serve as a barrier between cars that may roll forward into the playground where children are playing. The PlaySAFE vehicle barrier not only provides that peace of mind but also incorporate our PlaySAFE playground screening system. PlaySAFE is designed with 6” square steel posts mounted to 10” square steel plates to be anchored to the top of existing concrete or placed on top of concrete piers engineered by others.
An optional W-Beam guardrail system with offset blocks may be mounted to the posts providing even more safety. W-beam guardrail is a kind of road crash barrier used for securing highway safety by preventing errant vehicles from sliding out of the roads and impacting the roadside buildings or other objects. So it is most commonly fixed on the side of the highways, dock areas, aisles, especially on curves and slopes for protection against run-off-road collisions.

Our W-beam guardrail product is formed in accordance with the latest highway safety barrier technology for making sure its high durability and maximum strength. It is made of high quality steel, which reduces the impact force caused by mobile equipment to the maximum extent. Meanwhile, the zinc coating or PVC coating perfectly combined to the W-beam guardrail keeps the products free of damages of corrosion and rust.

Advantages:

• Easy installation: just attach the beam directly to the post through the pre-welded blocks.
• Prevent vehicles from rolling or travelling at low speeds from entering the play area.
• Minimize damage to play area, play equipment and protect others.
• High quality material and anti-rust surface for longer service life
• Corrosion resistant
• Can be easily removed and repaired.

Requirements for Playground Screening Vehicle Barriers

Playground fencing and screening has been outlined in ASTM F2049.  In accordance with this ASTM, vehicle barriers are to comply with the US Federal Department of Transportation specifications for guardrail.  The Federal DOT specification for guardrail is addressed in the below two sections from the Federal Department of Transportation specifications.  The ASTM also states the barrier shall withstand a one time impact of 10,000 lbs at 24” above grade with less than .1inch deflection.  This is difficult to discern as it does not state the rate of speed of the vehicle and other critical factors in determining crash rated critical performance criteria.  Regardless, ASTM F2049 is clear regarding compliance with the Federal guardrail specification.   PalmSHIELD PlaySAFE playground screening is designed to comply with this specification specific to the W Beam guardrail standard barrier.  It is the designer’s obligation to assure the layout of the guardrail and anchorage further comply with this Federal specification in providing site layout drawings showing all guardrail installation and associated hardware and end treatments.

Section 617. — GUARDRAIL Description 617.01

This work consists of installing guardrail systems and modifying, removing and resetting, and raising existing guardrail systems.

(a) Guardrail systems are designated as follows: CRG — Curved radius W-beam guardrail G1 — Cable guardrail G2 — W-beam (weak post) G3 — Box beam G4 — Blocked-out W-beam standard barrier G9 — Blocked-out thrie beam standard barrier MB4 — Blocked-out W-beam median barrier SBLG — Steel-backed log rail SBTA — Steel-backed timber (SBT) guardrail/timber posts and block-out SBTB — SBT guardrail/timber posts and no block-out

(b) Steel guardrail types are designated as follows: I — Zinc-coated, 1.80 ounces per square foot (550 grams per square meter) II — Zinc-coated, 3.60 ounces per square foot (1100 grams per square meter) III — Painted rails IV — Corrosion resistant (weathering) steel

(c) Steel guardrail classes are designated as follows: A — Metal thickness — 0.105 inches (2.67 millimeters) (12-guage) B — Metal thickness — 0.135 inches (3.43 millimeters) (10-guage)

(d) Terminals consist of posts, railing, hardware, and anchorage assembly necessary to construct the type of terminal specified.

Terminal types are designated as follows: Flared — Straight or parabolic flared W beam terminal G4-BAT — Back slope anchor terminal G4-CRT — Cable releasing terminal SBT-BAT — Back slope anchor terminal SBT-FAT — Flared SBT anchor terminal SBT-Tangent — Tangent SBT terminal Tangent — Tangent W beam terminal Section 617 589 Material 617.02 Conform to the following Section and Subsections: Guardrail blocks 710.08 Guardrail hardware 710.10 Guardrail nuts, bolts, and cables 710.09 Guardrail posts 710.07 Minor concrete 601 Rail elements 710.06 Construction Requirements 617.03 General. Furnish guardrail systems and terminals that are crashworthy. When flared or tangent terminals are required, submit drawings from the manufacturer for the terminals according to Subsection 104.03. Place concrete according to Section 601. Perform welding according to Subsection 555.17. 617.04 Post Installation. Treat field cuts for wood posts with two coats of preservative specified in Subsection 710.07. Do not place field cuts in contact with the ground. Install the posts plumb and at the location, spacing, and elevation specified, or as directed by the CO. When the pavement surface is within 36 inches (900 millimeter) of the guardrail face, install posts before placing the pavement surface. Protect posts from traffic by attaching the rail elements or by a method approved by the CO. Posts may be installed by either drilling or driving. Ensure posts installed by drilling have sufficiently sized holes to permit thorough compaction of backfill material around the post. Backfill in compacted layers not exceeding 12 inches (300 millimeters). Replace posts damaged during driving operations. When a post cannot be placed at its normal location due to an impenetrable object an additional blockout may be added. If the post cannot be offset, follow the post in rock detail or use the long span detail as shown in the plans or as approved by the CO. Do not change the post lengths or spacings in terminal sections. When it is not possible to maintain a 24-inch (600-millimeter) minimum distance between the back of the guardrail post and the top of a 1V:2H or steeper slope, increase the standard post length by 12 inches (300 millimeters).

617.05 Rail Element Installation. Do not modify specified hole diameters or slot dimensions.

(a) Steel rail. Shop bend curved guardrail with a radius of 150 feet (45 meters) or less. Install rail elements in a smooth continuous line with the laps in the direction of traffic flow. Use bolts that extend at least ¼ inch (6 millimeters), but not more than 1 inch (25 millimeters) beyond the nuts. Section 617 590 Paint scrapes on galvanized surfaces that expose the base metal with two coats of zinc-oxide paint.

(b) Steel-backed timber and log rail. Treat field cuts with two coats of preservative.

617.06 Terminal Sections. Do not connect the guardrail to cast-in-place anchors until the concrete has cured 7 days. Install end anchor cables without slack.

617.07 Connection to Structure. Install posts, railing, hardware, and anchorage assembly necessary to construct the type of connection to structure specified.

617.08 Guardrail Construction Exposed to Traffic. When a roadway is open to traffic during construction, complete guardrail installations within 5 days from the day the structure, pavement, shoulder, or whichever is the controlling item of work is sufficiently completed to allow guardrail installation. In areas where guardrail construction is not restricted by other construction, complete removal of existing guardrail and construct new guardrail within 48 hours of starting work. At the end of each day, securely bolt a rounded end section to the exposed end of the guardrail. Schedule guardrail installation so work is finished before work suspension or other extended periods of time.

617.09 Removing and Resetting Guardrail. Remove and store the existing rail elements, posts, and appurtenances. Remove and dispose of posts that are set in concrete. Replace guardrail, posts, and hardware damaged during removal, storage, or resetting. Backfill holes resulting from the removal of guardrail posts and anchors with material approved by the CO. Dispose of material not used in resetting guardrail according to Section 203.

617.10 Raising Guardrail. Remove the existing rail elements and appurtenances. Replace and reset posts as needed. Replace rail elements, posts, and hardware damaged during the removal and raising. Dispose of damaged material according to Section 203.

617.11 Acceptance. Material for guardrail will be evaluated under Subsections 106.02 and 106.03. Construction of guardrail will be evaluated under Subsections 106.02 and 106.04. Welding will be evaluated under Section 555. Measurement 617.12 Measure the Section 617 pay items listed in the bid schedule according to Subsection 109.02 and the following as applicable: Measure transition sections from G9 rail to G4 rail as G9 rail. Measure removing and resetting guardrail and raising guardrail including reset terminal sections. Measure replacement posts (except replacement posts for posts damaged by construction operations) used in the removing and resetting, or raising guardrail. Section 61

Section 710. — FENCE AND GUARDRAIL 710.01 Barbed Wire.

Furnish galvanized wire or aluminum coated wire conforming to AASHTO M 280. 710.02 Woven Wire. Furnish galvanized fabric or aluminum coated fabric conforming to AASHTO M 279. 710.03 Chain Link Fence. Furnish fabric, posts, rails, ties, bands, bars, rods and other fittings, and hardware conforming to AASHTO M 181. Furnish 0.177-inch (4.5-millimeter) coiled spring steel tension wire conforming to ASTM A641 hard temper with a Class 3 galvanized coating. Use the same coating on the tension wire as used on the rest of the chain link fence. 710.04 Fence Posts and Bollards.

(a) Wood. Conform to AASHTO M 168. Peel bark, except for red cedar posts and bracing, which do not require peeling. Trim knots flush with the surface and season the wood. For dimension lumber for fences, bollards, or gates, use timber that is sound, straight, and reasonably without knots, splits, and shakes. Provide S4S finish.

(b) Concrete. Conform to Section 601.

(c) Steel. For line fence posts, conform to AASHTO M 281. For chain link fence, conform to AASHTO M 181. 710.05 Fence Gates. For frame gates using chain link fabric, conform to AASHTO M 181. Use the same chain link fabric in the gate as in the fence.

710.06 Rail Elements.

(a) Metal beam rail. Furnish metal beam rail conforming to AASHTO-AGC-ARTBA, A Guide to Standardized Highway Barrier Hardware. (1) Galvanized steel. Furnish W-beam or thrie beam rail fabricated from corrugated sheet steel conforming to AASHTO M 180 for the designated shape, class, type, and mass of coating specified; (2) Painted steel. Furnish W-beam or thrie beam rail conforming to AASHTO M 180 for the designated shape, class, type, and mass of coating specified; or (3) Corrosion resistant (weathering) steel. Furnish W-beam or thrie beam rail conforming to AASHTO M 180, Type IV, Class B.

(b) Box beam rail. Furnish steel box beam rail conforming to AASHTO-AGC-ARTBA, A Guide to Standardized Highway Barrier Hardware. Section 710 679

(c) Steel-backed timber rail. Furnish timber conforming to AASHTO M 168. Fabricate the timber rail from dry, seasoned, and dressed rough sawn Douglas fir, southern pine, or other species having a stress grade of at least 1,500 pounds per square inch (10 megapascals). Do not use refractory species (such as larch or Rocky Mountain Douglas fir). Treat according to AASHTO M 133. Fabricate steel backing elements according to ASTM A242.

(d) Steel-backed log rail. Use logs that are seasoned, straight, and sound No. 1 Grade Western Hemlock, Western Red Cedar, or Pine. Do not use logs that taper in excess of 2 inches (50 millimeters) between the butt and tip ends of adjacent logs. Remove bark and at least 80 percent of the inner bark. Do not use logs with peeler or incision marks on surfaces that will be visible. Do not use logs with knot clusters, season checks, singular or any two opposite each other that exceed the thickness of the member. Logs may contain sound, tight, well-spaced knots. Treat according to AASHTO M 133. Fabricate steel backing elements according to ASTM A2428.

710.07 Guardrail Posts. Furnish guardrail posts conforming to AASHTO-AGC-ARTBA, A Guide to Standardized Highway Barrier Hardware.

(a) Wood. Furnish posts that do not have a through check, shake, or end slit in the same plane as, or a plane parallel to the bolt hole and extending from the top of the post to within 3 inches (75 millimeters) or the bolt hole. Treat according to AASHTO M 133. For steel-backed timber guardrail systems, furnish posts conforming to Subsection 710.06(c). For steel-backed log rail systems, furnish posts conforming to Subsection 710.06(d).

(b) Steel. Furnish posts of the appropriate size shape according to ASTM A6. Zinc-coat the embedded portion of weathering steel posts according to ASTM A123.

710.08 Guardrail Blocks.

(a) Wood. Furnish wood conforming to Subsection 710.07(a).

(b) Steel. Furnish steel conforming to Subsection 710.07(b).

(c) Plastic or composite. Furnish blocks that are crashworthy. Provide a new homogeneous block with uniform texture that does not crack, chip, flake, peel, or splinter after fabrication.

710.09 Guardrail Nuts, Bolts, and Cables.

(a) Galvanized nuts and bolts. Furnish nuts conforming to ASTM A563, Grade A. Furnish bolts conforming to ASTM A307, Grade A.

(b) Weathering nuts and bolts. Furnish nuts conforming to ASTM A563, Grade C3. Furnish bolts conforming to ASTM A325, Type 3.

(c) Cable. Furnish cable conforming to AASHTO M 30, Type II, Class A. 710.10 Guardrail Hardware. Furnish hardware conforming to AASHTO-AGC-ARTBA, A Guide to Standardized Highway Barrier Hardware. Section 710 680 For angles, channels, wide flanges, and plates not contained in the above standard, conform to ASTM A36 for non-weathering steel or ASTM A242 for weathering steel. For structural tubing for short steel posts, conform to ASTM A500 or ASTM A513, Grade 1008. Galvanize soil plates and structural tubing according to AASHTO M 111. Do not punch, drill, cut, or weld the metal after galvanizing. Manufacture reflector tabs from 0.15-inch (4-millimeter) aluminum or plastic. Use an adhesive that resists peeling with a force of 5 pounds per inch (0.89 kilograms per centimeter) of width. Use mildew-resistant adhesive that has no staining effect on retroreflective sheeting. Furnish retroreflective sheeting conforming to ASTM D4956, including supplementary requirements. 710.11 Temporary Plastic Fence. Furnish plastic noncorrosive fence fabricated from polyethylene (HDPE) and UV stabilized for outdoor weathering. Conform to the following:

(a) Height 48 in (1200 mm) min.

(b) Mesh openings 3.15 to 3.35 in (80 to 85 mm)

(c) Color International orange

(d) Mass 0.16 lb/ft (0.25 kg/m) mi