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SPS+ user interface -
Overview of the results in the 3-d view -
Output document -
Critical components marked in red
Butt Plate Joint
SPS+
The SPS+ program is used to design moment-resistant, bolted butt plate joints in steel construction. The butt plate joint can be defined flush or projecting and with two or four vertical bolt rows. Furthermore, an inclination of the beam can also be considered.
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SHOW MOREMaterial
- Structural steel: S235, S275, S355, S450
- Annealed steel (S275N – S460N)
- Thermo-steel (S275M – S460M)
- Weathering steel (S235W – S355W)
- High-temperature steel (S460Q – S460QL1)
- Hollow section, hot-finished (S235H – S355H)
- Hollow section, hot-finished, fine-grain (S275NH – S460NH)
- User-defined steel
Structural system
Connection configuration:
- Butt plate joint flush or projecting on one side and with two or four vertical bolt rows
- An inclined beam is possible
- The user can specify the thickness of the butt plates, their geometry as well as the bolt patterns or select a connection from the catalogue of connection configurations
Cross-sections:
- I-sections as standard shapes
- User-defined I-sections
Loads
- Design internal forces from axial force, moment and shear force
- Multiple combinations of design internal forces can be entered
Fasteners
- Bolts (black bolts and fit bolts)
- Sizes: M12, M16, M20, M22, M24, M27, M30, M36
- Strength classes 4.6; 5.6; 8.8; 10.9
Design
The calculation is based on the component method as per DIN EN 1993-1-8. For the verification of but plate joints with four vertical bolt rows, the model described in the following publications is used:
- Research Report 3/2009: Entwicklung eines Bemessungsmodells für geschraubte momententragfähige Kopfplattenverbindungen mit vier Schrauben in einer Schraubenreihe auf der Grundlage der prEN 1993-1-1:2003; Deutscher Ausschuss für Stahlbau DASt, Düsseldorf
- WAGENKNECHT: Stahlbau-Praxis nach Eurocode 3, Band 3 Komponentenmethode, 2nd edition; Beuth Verlag GmbH, Berlin, Wien, Zürich 2017
Either the elastic or plastic cross-sectional resistance is verified.
Document file formats
- Word
- Printer
Output
- Brief
- Standard
- Detailed
- User-definable output scope
Import options
- FRILO XML
Export options
- Word
- FRILO XML
- DXF-file
Steel construction
- DIN EN 1993
- ÖNORM EN 1993
News
ALLPLAN is releasing powerful updates for structural analysis and design with FRILO 2025
Highlights include a direct interface to ALLPLAN for more efficient reinforcement of concrete columns, the new PLUS program SLS+ for the design of splice connections, and the option of designing transverse joints to timber beams with the HO12+.
Merger of FRILO Software and DC Software with ALLPLAN successfully completed
The merger of FRILO Software GmbH and DC-Software Doster & Christmann GmbH with the ALLPLAN Group has been legally completed since July 1, 2024.
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