Pedestrian and Cycling Bridge in Neckartenzlingen, Germany
The S‑shaped pedestrian and cycling bridge across the Neckar river in Germany has a total length of 316 ft and a width of 10 ft with a straight middle part.
Town of Neckartenzlingen, Germany
|Building and Structural Planning||
Gottlob Brodbeck GmbH & Co. KG
Schaffitzel Holzindustrie GmbH + Co. KG
Schwaebisch Hall, Germany
Both foreland areas are bent in the ground plan and have a radius of approximately 214 ft. In this way, the course of access roads is considered in the ground plan.
The bridge superstructure consists of two stepped glued‑laminated timber beams coupled to each other and drilled to blocks. It spans three bays with the individual spans of about 85 ft / 146 ft / 85 ft and a total length of 316 ft over the Neckar river.
For efficient material utilization, the cross‑section height is graduated from 31 1/2 in up to 82 in according to the loading. Due to the continuous structure, zero moment distributions result in the main bay. These were modeled as hinge (Gerber) joints. In this way, a reasonable transport size and a simplified assembly of the wooden structural elements were achieved.
The supporting structure is optimally protected from weather conditions by its geometry (lateral stepping) and the top cover made from precast concrete panels (with lateral overhang, drainage channels below the structural joints and an additional sealing level on the timber beams). In order to verify these wood protection assumptions, a moisture monitoring system was arranged in the area of the highest cross‑section.
The substructure consists of reinforced concrete abutments with a bored pile foundation as well as the intermediate supports comprised of reinforced concrete columns built on shallow foundations. In the bridge structure extension, the path continues to a ramp with a throughed supporting structure made of reinforced concrete.
Do you have questions or need advice?
Contact our free e-mail, chat, or forum support or find various suggested solutions and useful tips on our FAQ page.
The material model Orthotropic Masonry 2D is an elastoplastic model that additionally allows softening of the material, which can be different in the local x- and y-direction of a surface. The material model is suitable for (unreinforced) masonry walls with in-plane loads.
- How to calculate the static depth d when designing the bending of block foundations (calculation as an equivalent beam)?
- I have defined temperature loads, strain loads, or a precamber. As soon as I modify stiffnesses, the deformations are no longer plausible.
- Can the properties, such as B. the cross -section or the surface thickness as well as the material of a surface of an existing element for a new element?
- When should the punching load be determined with the (un)smoothed distribution of the shear forces at the critical perimeter?
- I would like to perform the punching shear design on a column with connected downstand beams as a wall corner or Perform wall end. However, the module applies an internal column. Is it possible to adjust it?
- I am getting the message that my material does not meet the requirements of the current standard. How can I correct this?
- Is it possible to design bidirectional ribbed plates, unidirectional ribbed plates, or hollow core slabs in RFEM?
- In RF-/TIMBER AWC and RF-/TIMBER CSA, I receive the error that says torsion limit exceeded. How do I bypass this error message?
- Why are the values of a column base, head or center on the individual columns only displayed partially for the results from the calculation in RF‑CONCRETE Columns?
- Can I consider a reduction of the stiffness according to the German regulation NCI NA.5.9 in TIMBER Pro?
Programs Used for Structural Analysis
Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements
Timber design according to Eurocode 5, SIA 265 and/or DIN 1052
Design of steel members according to Eurocode 3
Dynamic analysis of natural frequencies and mode shapes of member, surface, and solid models
Dynamic and seismic analysis including time history analysis and multi-modal response spectrum analysis
Design of reinforced concrete members and surfaces (plates, walls, planar structures, shells)