滑板公园设计建造须知

Project Delivery System

Design/build is the preferred project delivery system for the concrete skatepark construction. The Design Build Institute of America defines design/build as "A system of contracting under which one entity performs both architecture/engineering and construction under one single contract."

Our particular brand of design/build is slightly more rigorous; all Airspeed designers play an intimate, hands-on role in the skatepark construction process, especially form work, concrete placement, and finishing. It is absolutely crucial that design/builders have the freedom to alter the design as they see fit within contractual limits. Excellent design/build contracts are available from DBIA.

Skatepark Construction

Skatepark Construction & Design

Skatepark designers must be active skateboarders, able to understand and appreciate their own work and the work of their peers. As stated above, skate park design/builders require the freedom to alter their design at any time during the skatepark construction process.

Dirt Work

All substrate beneath non-structural slabs should be compacted to at least 90% of maximum density as determined by standard proctor at optimum moisture content. The final layer of substrate should consist of compacted granular material such as sand or gravel whose thickness complies with local code. In regions subject to freezing, a

local engineer must be consulted, as a thicker gravel layer and rigid polystyrene foam insulation may be required to prevent frost heav e.

It is often necessary to build upwards to avoid excavating below the water table. In this case, it is common practice to pour the transitions against removable forms. The forms are typically removed after several days of curing and the transitions are backfilled as if they were retaining walls. This practice is entirely appropriate as long as the backfill is compacted in 1' lifts to 90% of maximum density.

Drainage

Especially in rainy climates, skateparks need to dry quickly. Puddles are to be avoided. To that end, decks and flats should slope at least 2% (1/4" per foot) towards the nearest area drain or outside edge where water can exit the skatepark. Drain covers should be flush with the riding surface and firmly attached, but removable for cleaning. Wherever near-surface ground water is present, a local soils engineer should be consulted and perforated pipe under-drains should encircle the park. If an infiltrator system is used, it should include a 3' minimum diameter access shaft for sediment settli ng, retrieval of lost objects, cleanout, and pumping.

Skatepark Construction in Waldport, Oregon

Formwork

Forms and templates used to define shapes of transitions and other structures should be firmly supported and adequate to ensure that the finished structure can conform to design specifications.