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2018-03-08

Lookout Tower at Treetop Path, Steigerwald

The lookout tower, with a height of more than 40 m (131 ft), is located in Ebrach (Upper Franconia), in the heart of the Steigerwald.

After the Spessart, the Steigerwald is the second-largest deciduous forest area…

Lookout Tower on Steigerwald Treetop Trail 
1896x
Timber Lookout Tower

Nachdem die Besucher einen über 500 m langen Baumwipfelpfad passiert haben, können sie auf einer spiralförmigen Rampe den Turm erklimmen. Oben angelangt, kann man den einmaligen Blick über das Weltkulturerbe Steigerwald genießen.

Konstruktion

Der Aussichtsturm hat die Form eines nach oben aufgeweiteten Kegelstumpfes. Am Turmfuß beträgt der Außendurchmesser ca. 20 m und am Turmkopf ca. 32 m. Die Haupttragelemente bilden 12 gebogene BSH-Binder, welche in einem Winkelunterschied von 30° rotationssymmetrisch aufgestellt sind.

Die außenliegende Wendelkonstruktion aus Holz ist über Stahlkragträger an den Holzstützen befestigt. In ca. 12 m Höhe befindet sich ein Zwischenpodest, das auf Stahlschrägstützen aufgeständert ist.

Die Aussichtsplattform am Turmkopf besteht aus nach innen auskragenden Stahlträgern und dazwischenliegenden BSH-Längsträgern mit Bohlenbelag.

Ein ringsum laufendes Netz aus Stahldiagonalen und horizontale Ringkonstruktionen sorgen für die räumliche Aussteifung des Turms.

Investor Bayerische Staatsforsten AöR
www.baysf.de
Architect Architectural office Josef Stöger
stoeger-koelbl.de (German).
Planning, Structural Engineering, Construction WIEHAG GmbH
www.wiehag.com
Structural Analysis of Foundations Ing.-Büro Wolf GmbH
D-94036 Passau, Germany

Project Specifications

Model Data

Number of Nodes 1245
Number of Members 1957
Number of Load Cases 10
Number of Load Combinations 157
Number of Result Combinations 8
Dimensions (Metric) 38.332 x 37.770 x 41.330 m
Dimensions (Imperial) 125.76 x 123.92 x 135.6 feet
Program Version 8.13.01

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Events
Videos
Models to Download
Knowledge Base Articles
Prestress Load Case
RFEM 6 includes the Form-Finding add-on to determine the equilibrium shapes of surface models subjected to tension and members subjected to axial forces. Activate this add-on in the model's Base Data and use it to find the geometric position in which the prestress of lightweight structures is in equilibrium with the existing boundary conditions.
Export options for transferring design data from Tekla Structures to RFEM 6 effectively, showing compatibility settings.
This article provides an overview of the Dlubal-Tekla interface, detailing the export and import options, as well as the various workflows for efficiently managing data exchange between Tekla Structures and RFEM 6 in structural design and analysis.
A structural beam exhibits a membrane effect resulting from a uniform temperature change.
This article explains how to simulate the thermal strain of members in RFEM 6 using temperature loads, covering both membrane and bending effects, with practical examples to demonstrate their application.
Export options for RFEM 6 to DXF file are displayed in a clear interface layout.
This article provides a detailed overview of the export features from RFEM 6 and RSTAB 9 to AutoCAD/DXF files, including options for exporting dimensions, FE meshes, and deformed shapes.
Screenshots
Product Features
Feature 002666 | Ponding Load Type

The Ponding load type allows you to simulate rain actions on multi-curved surfaces, taking into account the displacements according to the large deformation analysis.

This numerical rainfall process examines the assigned surface geometry and determines which rainfall portions drain away and which rainfall portions accumulate in puddles (water pockets) on the surface. The puddle size then results in a corresponding vertical load for the structural analysis.

For example, you can use this feature in the analysis of approximately horizontal membrane roof geometries subjected to rain loading.

Go to Explanatory Video
Snow Load Wizard with options for snow overhang and snow guard according to Eurocode.

In the Snow Load Wizard, you can optionally consider snow overhang and snow guard when generating snow loads according to Eurocode.

The as-built analysis allows for the customization of properties, such as members and surfaces, in different construction stages.

The Construction Stages Analysis (CSA) add-on allows you to modify the object and design properties of members, surfaces, and so on, in the individual construction stages.

Display of model deformations in the analysis progress window of the program.

During the calculation, you can display the model deformation for the calculation steps graphically in the calculation progress window.

Frequently Asked Questions (FAQ)
How can I export the deformed mesh shape to a .dxf file in RFEM 6 for my fabric membrane structure?
I would like to analyze temporary structures. Which programs do you recommend?
Which Dlubal programs do I need for tensile membrane structures?
I would like to analyze cable and tensile structures. Is it possible to use RFEM or RSTAB for this?

How do I create a user-defined fabric?
Is it possible also to design membrane structures in RFEM?
Customer Projects