====== Module "Ribbed slab" ======

{{ en:clt:hotspot:software:cltdesigner:manual:modul_tbeam:gesamtrippendecke.png |Module Ribbed slab}}

===== Input data =====

The input is divided into:

  * general information about the project and the considered structural element
  * definitions of the structural system
  * definitions of the cross section
  * input of the loads
  * informations about vibration parameters
  * calculation options
==== General ====

{{page> en:clt:hotspot:software:cltdesigner:manual:modul_plate1d_continuousbeam#general&inline&permalink&noheader}}

==== Structural system ====

In this release, only single span girder can be calculated. The supporting width and span (via x-value in the table) can be defined within this input field.

{{ en:clt:hotspot:software:cltdesigner:manual:modul_tbeam:statischessystem.png?350 |Input - structural system}}
==== Cross section ====

The input of the CLT cross section is the same as for the [[en:clt:hotspot:software:cltdesigner:manual:modul_plate1d_continuousbeam|Module "CLT-Plate 1D - Continuous beam"]].

++++ Show description |
{{section> en:clt:hotspot:software:cltdesigner:manual:modul_plate1d_continuousbeam#cross_section&inline&permalink&noheader}}
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The rib cross-section (rectangular cross-section made of glulam or solid wood) is defined by entering the height and width of the rib and selecting the material. If "Standard dimensions only" is selected, the dimensions for the nearest standard cross-section are set.

{{ en:clt:hotspot:software:cltdesigner:manual:modul_tbeam:rippenquerschnitt.png?450 |Input - cross section of the rib}}
==== Loads ====

The input is the same as for the [[en:clt:hotspot:software:cltdesigner:manual:modul_plate1d_continuousbeam|Module "CLT-Plate 1D - Continuous beam"]], but limited to distributed loads.

++++ Show description |
{{section> en:clt:hotspot:software:cltdesigner:manual:modul_plate1d_continuousbeam#loads&inline&permalink&noheader}}
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==== Fire ====

In this module, currently no structural fire design is possible.
==== Vibrations ====

The input is the same as for the [[en:clt:hotspot:software:cltdesigner:manual:modul_plate1d_continuousbeam|Module "CLT-Plate 1D - Continuous beam"]].

++++ Show description |
{{section> en:clt:hotspot:software:cltdesigner:manual:modul_plate1d_continuousbeam#vibrations&inline&permalink&noheader}}
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===== Results and Output =====

==== Cross section values ====

The stiffness values of the CLT-plate and the GLT-beam as well as the shear spring, which are shown in the upper section of the tab "cross-section values" are parameters for the determination of the effective width.

{{ en:clt:hotspot:software:cltdesigner:manual:modul_tbeam:querschnittswerte_bsp_bsh.png |Stiffness values of the CLT plate as well as of the rib and the shear spring}}

Underneath, the effective width, the center of gravity as well as the bending and shear stiffness of the T-beam at the supports and in between are shown.

{{ en:clt:hotspot:software:cltdesigner:manual:modul_tbeam:querschnittswerte_auflagerbereich.png |Cross section values at supports}}
==== Summary of the results ====

The summary of the results is analogous to the [[en:clt:hotspot:software:cltdesigner:manual:modul_plate1d_continuousbeam|Module "CLT-Plate 1D - Continuous beam"]].

++++ Show description |
{{page> en:clt:hotspot:software:cltdesigner:manual:modul_plate1d_continuousbeam#summary_of_the_results&inline&permalink&noheader}}
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However, there are differences for ULS - shear, since for the CLT-flange also the in-plane shear has to be considered.

{{ en:clt:hotspot:software:cltdesigner:manual:modul_tbeam:zusammenfassung.png |Summary of the results}}
===== Implemented calculation methods =====

++++ Effective width of T-beams made of CLT and GLT |
{{page> :clt:design:tbeam:bef&inline&permalink}}
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++++ Calculation example concerning the effective width of T-beams made of CLT and GLT |
{{page> :clt:design:tbeam:example&inline&permalink}}
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~~DISCUSSION~~