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Jon Ellison Wrote:
-------------------------------------------------------
> Dr. Troglodyte Wrote:
> --------------------------------------------------
> -----
> >
>


[Image Restored]

> >
> >
> > Hello Jon Ellison; regarding the above image
> you
> > wrote:
> >
> > ”Not really as it isn't an arch.
> > It's a triangulated, opposed truss.
> > It functions dynamically in exactly the same
> way
> > as the trusses' in the other pyramids...”

> >
> > These comments are incorrect.
> >
> > The roof structure for this space is an
> > arch
. It is composed of segments of
> opposing
> > voussoirs. It is not a
> > “triangulated, opposed truss”; in that it
> does
> > satisfy the formulaic requirements for a truss:
> > m = 2n – 3,
> > where m is the
> > total number of members and
> > n is the total
> > number of nodes. It does not function
> > “dynamically” as a truss, for the same
> > reason.
> >
> >
> >
>

> >
> >
> >
> > Dr. Troglodyte
>

> How exactly does a Voussoir function as an active
> component within a true arch????
> How does a true arch function as opposed to a
> gabled arch???
> Are they the same?
> Are they different??


The ‘voussoir’ is a wedge shaped element utilized in load [force/thrust] transference. In the image below, lines of “thrust” are dashed:



Source


> What is the difference between a True Arch and a
> False Arch??


The ‘voussoired’ arch is a form of “true” arch; the ‘corbeled’ arch is defined as a “false” arch.


> What would happen if we were to remove the lower
> cross member from a triangulated truss??
> If the lower cross member of a truss were removed
> could it be compensated for in any other way
> therefore mathematically maintaining the
> structural integrity of the truss??
>


You would no longer have a ”truss”. Compensation of the horizontal chord member of a truss, that does not act in tension, negates its designation as a ”truss”.


> I look forward to your answers.
>
> I have corrected and completed your drawing.
>
>



You have “corrected” nothing. You have illustrated the compression of the diagonal members and the tension of the horizontal chord member. You have incorrectly illustrated the “reaction” force from the bearing nodes, as indicated in this modern wood truss image:



Source



Dr. Troglodyte


“Quis custodiet ipsos custodes?“ - Decimus Junius Juvenalis


“Numero, Pondere et Mensura“


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Subject Views Written By Posted
Mastaba of Shepsekaf 1424 Thanos5150 25-Oct-17 04:25
Quite the Mastaba...looks like walls can talk ;) 274 Racho 25-Oct-17 06:11
Re: Quite the Mastaba...looks like walls can talk ;) 208 Thanos5150 26-Oct-17 02:26
Why adapted/adopted 191 Racho 31-Oct-17 07:44
Re: Why adapted/adopted 312 Jon Ellison 31-Oct-17 09:25
Re: Quite the Mastaba...looks like walls can talk ;) 227 Barbelo 26-Oct-17 03:57
Gables v Arch 166 Barbelo 26-Oct-17 03:47
Re: Gables v Arch 194 Thanos5150 26-Oct-17 04:47
Re: Gables v Arch 182 Barbelo 26-Oct-17 05:12
Re: Gables v Arch 165 Thanos5150 26-Oct-17 05:39
Re: Gables v Arch 231 Barbelo 26-Oct-17 06:49
An Interesting Curve 197 Jon Ellison 26-Oct-17 23:20
Re: Gables v Arch 159 Thanos5150 27-Oct-17 00:34
Re: Gables v Arch 159 Barbelo 27-Oct-17 01:19
Re: Gables v Arch 163 Jon Ellison 27-Oct-17 01:36
Re: Gables v Arch 168 Jon Ellison 27-Oct-17 01:49
Re: Gables v Arch 154 Barbelo 27-Oct-17 02:05
Re: Gables v Arch 154 Jon Ellison 27-Oct-17 02:17
Re: Gables v Arch 165 Barbelo 27-Oct-17 02:27
Re: Gables v Arch 149 Jon Ellison 27-Oct-17 03:40
Re: Gables v Arch 163 Barbelo 27-Oct-17 05:22
Re: Gables v Arch 159 Jon Ellison 27-Oct-17 06:45
Gables v Arch vs Truss 197 Dr. Troglodyte 27-Oct-17 19:33
Re: Gables v Arch vs Truss 175 Jon Ellison 27-Oct-17 20:50
Re: Gables v Arch vs Truss 145 Jon Ellison 27-Oct-17 21:20
Re: Gables v Arch vs Truss 145 Jon Ellison 27-Oct-17 21:53
Re: Gables v Arch vs Truss 268 Dr. Troglodyte 27-Oct-17 22:47
Re: Gables v Arch vs Truss 157 Jon Ellison 28-Oct-17 07:34
Re: Gables v Arch vs Truss 323 Jon Ellison 28-Oct-17 07:53
Re: Gables v Arch vs Truss 168 Dr. Troglodyte 28-Oct-17 16:08
Re: Gables v Arch vs Truss 220 Jon Ellison 28-Oct-17 18:13
Re: Gables v Arch vs Truss 154 Dr. Troglodyte 28-Oct-17 16:07
Re: Gables v Arch 170 Thanos5150 27-Oct-17 21:40
Re: Gables v Arch 186 Origyptian 27-Oct-17 22:40
Re: Gables v Arch 229 Barbelo 28-Oct-17 00:01
Re: Gables v Arch 218 Origyptian 28-Oct-17 10:03
Re: Gables v Arch 186 Barbelo 28-Oct-17 10:56
Re: Gables v Arch 318 Origyptian 28-Oct-17 13:30
Re: Gables v Arch 148 Barbelo 28-Oct-17 19:57
Re: Gables v Arch 144 Origyptian 28-Oct-17 22:45
Re: Gables v Arch 159 Barbelo 28-Oct-17 23:05
Re: Gables v Arch 163 R Avry Wilson 28-Oct-17 23:48
Re: Gables v Arch 208 Corpuscles 29-Oct-17 00:51
Re: Gables v Arch 198 Origyptian 29-Oct-17 05:19
Re: Mastaba of Shepsekaf 192 Origyptian 27-Oct-17 02:31
Re: Mastaba of Shepsekaf 175 Thanos5150 27-Oct-17 22:18
Re: Mastaba of Shepsekaf 155 Origyptian 27-Oct-17 22:50
Re: Mastaba of Shepsekaf 159 Thanos5150 27-Oct-17 23:46
Re: Mastaba of Shepsekaf 265 DUNE 27-Oct-17 07:58
Re: Mastaba of Shepsekaf 162 Thanos5150 27-Oct-17 22:04
Re: Mastaba of Shepsekaf 163 DUNE 27-Oct-17 23:08
Re: Mastaba of Shepsekaf 338 Thanos5150 28-Oct-17 02:34
Re: Mastaba of Shepsekaf 289 Corpuscles 28-Oct-17 04:43
Re: Mastaba of Shepsekaf 165 Barbelo 28-Oct-17 20:06
Re: Mastaba of Shepsekaf 227 Thanos5150 29-Oct-17 02:03
Re: Mastaba of Shepsekaf 202 Origyptian 29-Oct-17 05:16
Re: Mastaba of Shepsekaf 298 Thanos5150 29-Oct-17 05:39
Re: Mastaba of Shepsekaf 240 Origyptian 29-Oct-17 14:09
Re: Mastaba of Shepsekaf 198 Thanos5150 29-Oct-17 16:39
Re: Mastaba of Shepsekaf 223 Origyptian 29-Oct-17 16:56
Re: Mastaba of Shepsekaf 177 Thanos5150 28-Oct-17 16:00
Re: Mastaba of Shepsekaf 161 Barbelo 28-Oct-17 20:26


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