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FRP stairways - 13 Pages

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FRP stairways
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Catalog excerpts

WE SUPPORT YOUR NEEDS M.M.S.R.L Fiberglass Reinforced Polymer gratings and structures Via Antonio Zanussi, 300/302 33100 Udine - Italy Cap. Soc. EURO 100.000 i.v. FRP STAIRWAYS MM07 23.12.2015 Rev. 4 FRP STAIRWAYS PAGE 1

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WE SUPPORT YOUR NEEDS M.M.S.R.L Fiberglass Reinforced Polymer gratings and structures Via Antonio Zanussi, 300/302 33100 Udine - Italy Cap. Soc. EURO 100.000 i.v.

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WE SUPPORT YOUR NEEDS M.M.S.R.L. Fiberglass Reinforced Polymer gratings and structures Via Antonio Zanussi, 300/302 33100 Udine - Italy Cap. Soc. EURO 100.000 i.v. 1. USE AND CHARACTERISTICS The FRP stairways are built by assembling the fiberglass and polyester resin profiles and gratings, they assure several advantages compared to the normal metal ones: a. High resistance to chemical and atmospheric aggressions b. High mechanical/weight ratio peso g. High dielectric properties Stairways are designed and built accordingly to the UNI EN ISO 14122-3 norm.

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WE SUPPORT YOUR NEEDS M.M.S.R.L. Fiberglass Reinforced Polymer gratings and structures Via Antonio Zanussi, 300/302 33100 Udine - Italy Cap. Soc. EURO 100.000 i.v. 2. EMPLOYMENT FIELD MM’s stairways can be installed in any plant, but they are mainly used in corrosive environments where their characteristics are emphasized, in those plants where conventional materials are not long-lasting or need continuous varnishing or protection with high maintenance costs and in any case safety in the working environment is not guaranteed. The industries that use MM’s STAIRWAYS are: •    Chemical industries •...

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WE SUPPORT YOUR NEEDS M.M.S.R.L Fiberglass Reinforced Polymer gratings and structures Via Antonio Zanussi, 300/302 33100 Udine - Italy Cap. Soc. EURO 100.000 i.v. 3. MATERIALS 3.1 STAIRWAY Main structure Made by two stringers, connected to the landing and the ground floor with steel plates. Handrail system The handrail system is made of the profiles described in table 3.2 connected to each other by cupronickel rivets. The distance between stanchions is of approximately 120cm and they are fixed to the stringers with two S.S. bolts. Steps Made of at least 38 mm height FRP antiskid surface grating....

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WE SUPPORT YOUR NEEDS M.M.S.R.L Fiberglass Reinforced Polymer gratings and structures Via Antonio Zanussi, 300/302 33100 Udine - Italy Cap. Soc. EURO 100.000 i.v. 3. STRUCTURAL PROFILES SHEET PROFILES For FRP angle profiles - M6 screws - M6 self-blocking nuts - M6 washers For S.S. angles - M8 screws - M8 self-blocking nuts - M8 washers

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WE SUPPORT YOUR NEEDS M.M.S.R.L Fiberglass Reinforced Polymer gratings and structures Via Antonio Zanussi, 300/302 33100 Udine - Italy Cap. Soc. EURO 100.000 i.v. 3.3 HANDRAIL SYSTEM PROFILES SHEET PROFILES Accessories - M8 screws - M8 nuts and washers - Rivets - PA reinforcement - Adjustable junction for handrail - S.S. plate 50x15 mm - Adjustable junction for tubular kneerail

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WE SUPPORT YOUR NEEDS M.M.S.R.L Fiberglass Reinforced Polymer gratings and structures Via Antonio Zanussi, 300/302 33100 Udine - Italy Cap. Soc. EURO 100.000 i.v. 4. INSTRUCTIONS FOR DESIGN ENGINEER Stairways are designed and built accordingly to the UNI EN ISO 14122-2-3 norm. The essential criteria that a design engineer must consider for their construction are listed here below: 1. slope shall be included between 20° e 45° (30°-40° suggested) 2. going, g, and rise, h, shall meet the formula: 600 < g+2h < 660 3. the overlap, r, of the step shall be > 10 mm 4. the clear width of the stair, w,...

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WE SUPPORT YOUR NEEDS M.M.S.R.L Fiberglass Reinforced Polymer gratings and structures Via Antonio Zanussi, 300/302 33100 Udine - Italy Cap. Soc. EURO 100.000 i.v. 4.1 STAIRWAY DIMENSIONS PAGE 9

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WE SUPPORT YOUR NEEDS M.M.S.R.L Fiberglass Reinforced Polymer gratings and structures Via Antonio Zanussi, 300/302 33100 Udine - Italy Cap. Soc. EURO 100.000 i.v. 4.2 STANDARD STEPS TABLE Steps are provided with closed borders on all sides and with our without front-plate. Every step is supported by a 50 mm wide FRP profile on both sides. The maximum value of the step’s clear span L corresponding to an admissible deflection of 1/200 L under a punctual load of 150 Kg are shown in the following table. The load is concentrated on a 100x100 mm area in the middle of the step close to the front border,...

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WE SUPPORT YOUR NEEDS M.M.S.R.L Fiberglass Reinforced Polymer gratings and structures Via Antonio Zanussi, 300/302 33100 Udine - Italy Cap. Soc. EURO 100.000 i.v. 5. ASSEMBLING INSTRUCTIONS 5.1 STAIRWAY FIXING S.S. angles, screws, bolts & nuts are used to fix the stairway on the top and the ground (Fig. 1 and 2). The fixing of the structure to the concrete is made by using standard angles and anchor bolts (Fig.3). Fig. 1 Stringer fixing to FRP structure    Fig. 2 S.S. angle 5.2 STEPS ASSEMBLING The steps are fastened to the stringers by using S.S. M6 screws and supported by FRP angles, which are...

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WE SUPPORT YOUR NEEDS M.M.S.R.L Fiberglass Reinforced Polymer gratings and structures Via Antonio Zanussi, 300/302 33100 Udine - Italy Cap. Soc. EURO 100.000 i.v. 5.3 HANDRAIL SYSTEM ASSEMBLING The handrail system, cut accordingly to the stair slope, is fastened to the stringers by fitting a square profile 50x50x5 into the C stringer and screwing them together (Fig. 5 shows a C200 stringer case). Connections are made by S.S. M8 screws. The handrail system can be installed on one or both sides of the stairway. 5.4 FASTENING STRINGERS TO CONCRETE Whit an alongside wall stairway, the stringer can...

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WE SUPPORT YOUR NEEDS M.M.S.R.L Fiberglass Reinforced Polymer gratings and structures Via Antonio Zanussi, 300/302 33100 Udine - Italy Cap. Soc. EURO 100.000 i.v. 5.5 STAIRWAY INTERMEDIATE SUPPORTS If a stairway has an over 4 m span, an intermediate support is required (Fig.7). These supports can be made of the following profiles: - C profile mm 300x100 thickness 15 mm - C profile mm 200x60 thickness 10 mm - C profile mm 150x45 thickness 8 mm Support columns can be braced by FRP angles and C profiles: - L 45x45 mm thickness 5 mm - L 50x50 mm thickness 5 mm - L 75x45 mm thickness 8 mm - C profile...

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