CompositesWorld
Issue link: https://cw.epubxp.com/i/742140
NEWS CompositesWorld.com 35 MVC Wall System 7 Composite wall panels and vertical pultruded columns are adhesively bonded and mechanically fastened into base fixation rails. Source | MVC Plasticos 8 Pultruded beams are adhesively bonded and mechanically fastened to the panel tops to support conventional roof construction. Source | MVC Plasticos 9 Buildings are finished using conventional doors, windows, paint, flooring and fixtures. Source | MVC Plasticos capacity through the type and density of foam." He says MVC prefers to keep the panel thickness standardized because they are connected using pultruded profiles, which are made to specific measurements. To change the panel thicknesses — the walls are typically 10 cm and the ceilings are 5 cm — would require a cascade of tooling changes for the pultrusions. Finished panels are routed for windows and doors (Step 5, p. 34) and outfitted with adhesively bonded edge profiles. All components are then labeled and grouped appropriately for shipment to building sites. Reduced onsite assembly At the building site, MVC's customer, the construction contractor, takes over. Base fixation profiles are bonded to the concrete foundation using structural epoxy adhesive (Step 6, p. 34) and then affixed with corrosion-resistant, stainless steel self-tapping screws. Panels are then adhesively bonded into the base profiles and a silane-based sealant used in shipbuilding is applied to ensure moisture resistance. To bear overhead roof-and-beam loads and join panels at junctions and corners, pultruded vertical columns are installed at each panel's vertical sides, adhesively bonded and screwed into base profiles and panel edges (Step 7, this page). Pultruded cover pieces are used to conceal the panel/column seams as well as any additional piping or conduit installed by the builder. Next, horizontal pultruded beams are placed on the tops of the wall panels, to form a load-bearing structural frame to which roof joists can be attached (Step 8, left). In larger, more complex structures, galvanized steel profiles are used in place of selected pultruded profiles to increase load-bearing capability. Mussio also notes that there are cases (e.g., roofing structures) in which standards are still lacking for composites. "So conventional materials are used here to speed structural calculations," he adds. From there, commercially avail- able doors and windows are fitted into the factory-engineered Air terminal top treatment In an unusual application, MVC Plasticos supplied 22,000m 2 of overhead composite panels for the Carrasco International Airport main terminal building. Source | MVC Plasticos