Software for Structural and Dynamic Analysis

Representation of deformation of a bridge in RFEM (screen shot: Dlubal)

Temporary Bridge (picture: Janson Bridging)

Temporary Bridges by Janson Bridging

Janson Bridging in Hank, the Nether-

lands, produces temporary, emergen-

cy or permanent bridges for civil,

industrial or military use. All this

bridges –consisting of several types-

are based on modular concepts, that

can be easily adjusted to the wishes of

the customer. The modules are ele-

ments with a limited length that can

be joined using couplings. Thus the

bridge engineer can set the span, the

depth and width of the bridge by

added elements together.

These bridges will have to satisfy vari-

ous national codes, being mainly the

Eurocode and the American code.

Since Janson Bridging’s in-house en-

gineering department calculates each

individual bridge separately, with

bridge spans ranging from 2 to 20

elements, the work can be considera-

ble in order to calculate the deflec-

tions, reaction forces and stresses.

Hence in 2012 Janson Bridging decid-

ed to optimize its engineering pro-

cess, by automatizing the creation of

RFEM and CAD bridge models. The

goal was to generate, calculate, design

and check the bridge automatically.

Automatic Generation with RF-COM interface

Today using the RF-COM-interface

Janson generates their JSK, Bailey and

JPB-bridge types automatically. The

analysis models consist of members

and/or surfaces, using i.e. non-linear

bracing, compression only members,

and orthotropy. Additionally Janson is

able to generate a so-called Tandem

System (LM) running along the span of

the bridge. The reaction and internal

forces are automatically stored in the

correct tabpages of the spreadsheet,

thus considerably reducing the

amount of work for the engineer.

Using the automatization tools the

engineer can even predict the reaction

forces with several minutes.

The following companies participated

in the construction:

Structural analysis

Janson Bridging

Hank, Netherlands

www.jansonbridging.com

Software

Dlubal Engineering Software

Tiefenbach, Germany

www.dlubal.com

Designed with Dlubal Software