Lattice girders

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The product

The Pittini Group was the first to offer electrowelded lattice girders to the building sector, thus significantly contributing to the industrialisation of modern construction.

The electro-welded lattice girders manufactured by the Pittini Group, which are well known all over Europe owing to their range, high quality and expert technical support, are used to make floor lattice girder beams (for clay-cement mix or concrete floors), lattice girder slabs (bridge decks, large monolithic or lightened floors) and double slabs (reinforced concrete cross walls in seismic zones, retaining walls, curtain walls, etc.)

These products have become more and more widespread owing to safe and fast on-site laying and suppression of props when grouting. That is why they are largely used for bridge decks.

Recent studies at national and European levels have reported the effective use of lattice girder slabs for decks in steel constructions, both in terms of ductility and in fire resistance, improving performance compared with traditional solutions at the same weight. The use of double lattice girder slabs for seismic walls in steel constructions is a valuable and innovative solution for industrial buildings.

Download Catalogue Lattice Girders

Electro-Welded Lattice Girders

Steel Grade
Country Certification Body Standard Technical sheet
B450C Italy STC
Cons.Sup.Lav.Pubbl.
D.M. 17/01/2018 SPF571i

SPF586i

B450A Italy STC
Cons.Sup.Lav.Pubbl.
D.M. 17/01/2018 SPF570i

Mechanical And Size Characteristics

Standard Steel grade Ø        [mm] Weight tol.    [%]
Re min [MPa] Re max [MPa]  Rm min [MPa] Rm/Re min Rm/Re max Agt            [%] Ømin/
Ømax
D.M. 17/01/18 B450A 5 ÷ 10 ±4.5÷±6 450c 563c 540c 1.05c 2.5c 4/7
D.M. 17/01/18 B450C 6 ÷ 16 ±4.5÷±6 450c 563c 540c 1.15c 1.35c 7.5c 4/7 049*
HRN 1130-5 B450C 4 ÷ 16 ±4.5÷±6 450c 540c 1.15c 1.35c 7.5c 4/7
HRN 1130-5 B500A 4 ÷ 16 ±4.5÷±6 500c 1.05c 2.5c 4/7
HRN 1130-5 B500B 4 ÷ 16 ±4.5÷±6 500c 1.08c 5.0c 4/7
DIN 488-5 B500A 4 ÷ 16 -4 ÷ +6 500c 1.05c 2.5c 4/7
DIN 488 B500B 6 ÷ 16 -4 ÷ +6 500c 650c 1.08c 5.0c 4/7

REMARK:

–       c= characteristic values

Range

TOP STANDARD
Standard Ø Lower [mm] Ø Upper [mm] Ø Stirrups [mm]  Height [cm] base [cm] Pcs/Bundle
5/7/5 5 7 5 7.0 8.5 140
5/7/5 5 7 5 9.5 10.0 120
5/7/5 5 7 5 12.5 10.0 120
6/7/5 6 7 5 12.5 10.0 120
5/7/5 5 7 5 16.5 10.0 90
5/8/5 5 8 5 20.5 10.0 66

Baustrada HD Standard

Standard Ø Lower [mm] Ø Upper [mm] Ø Stirrups [mm] Height [cm] base [cm] Pcs/Bundle
8/10/6 8 10 6 12.5 10.8 45
8/10/6 8 10 6 16.5 10.8 45
8/12/7.2 8 12 7.2 16.5 10.8 45
8/12/7.2 8 12 7.2 20.5 10.8 30
12/16/10 12 16 10 16.5 12.0 30
12/16/10 12 16 10 20.5 12.0 21
6/10/6* 6 10 6 on request depending on H depending on H
6/8/6* 6 8 6 on request depending on H depending on H

*: lattice girders only on steel grade B500A e B500B

Double Slab Standard

Standard Ø Lower [mm] Ø Upper [mm] Ø Stirrups [mm] Height [cm] base [cm] Pcs/Bundle
6/8/6 6 8 6 22.5 10.8 30
6/8/6 6 8 6 25 10.8 30
6/8/6 6 8 6 27 10.8 30
8/8/7 8 8 7 32 13.0 18
8/8/7 8 8 7 35 14.0 18

REMARKS:
– on request customized lattice girders are available with a height from 70 to 350 mm, diameter upper current from 7 to 16 mm, diameter lower current from 5 to 16 mm , stirrups from 5 to 10 mm

Sales Organization.

A continuous and reliable service is guaranteed by Pittini Group’s Sales Department.
Contact our designated representative: