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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 1585 Thanos5150 25-Oct-17 04:25
Quite the Mastaba...looks like walls can talk ;) 313 Racho 25-Oct-17 06:11
Re: Quite the Mastaba...looks like walls can talk ;) 249 Thanos5150 26-Oct-17 02:26
Why adapted/adopted 213 Racho 31-Oct-17 07:44
Re: Why adapted/adopted 345 Jon Ellison 31-Oct-17 09:25
Re: Quite the Mastaba...looks like walls can talk ;) 263 Barbelo 26-Oct-17 03:57
Gables v Arch 196 Barbelo 26-Oct-17 03:47
Re: Gables v Arch 217 Thanos5150 26-Oct-17 04:47
Re: Gables v Arch 218 Barbelo 26-Oct-17 05:12
Re: Gables v Arch 196 Thanos5150 26-Oct-17 05:39
Re: Gables v Arch 253 Barbelo 26-Oct-17 06:49
An Interesting Curve 233 Jon Ellison 26-Oct-17 23:20
Re: Gables v Arch 182 Thanos5150 27-Oct-17 00:34
Re: Gables v Arch 178 Barbelo 27-Oct-17 01:19
Re: Gables v Arch 196 Jon Ellison 27-Oct-17 01:36
Re: Gables v Arch 188 Jon Ellison 27-Oct-17 01:49
Re: Gables v Arch 186 Barbelo 27-Oct-17 02:05
Re: Gables v Arch 190 Jon Ellison 27-Oct-17 02:17
Re: Gables v Arch 197 Barbelo 27-Oct-17 02:27
Re: Gables v Arch 179 Jon Ellison 27-Oct-17 03:40
Re: Gables v Arch 197 Barbelo 27-Oct-17 05:22
Re: Gables v Arch 193 Jon Ellison 27-Oct-17 06:45
Gables v Arch vs Truss 231 Dr. Troglodyte 27-Oct-17 19:33
Re: Gables v Arch vs Truss 202 Jon Ellison 27-Oct-17 20:50
Re: Gables v Arch vs Truss 175 Jon Ellison 27-Oct-17 21:20
Re: Gables v Arch vs Truss 171 Jon Ellison 27-Oct-17 21:53
Re: Gables v Arch vs Truss 327 Dr. Troglodyte 27-Oct-17 22:47
Re: Gables v Arch vs Truss 190 Jon Ellison 28-Oct-17 07:34
Re: Gables v Arch vs Truss 369 Jon Ellison 28-Oct-17 07:53
Re: Gables v Arch vs Truss 210 Dr. Troglodyte 28-Oct-17 16:08
Re: Gables v Arch vs Truss 242 Jon Ellison 28-Oct-17 18:13
Re: Gables v Arch vs Truss 190 Dr. Troglodyte 28-Oct-17 16:07
Re: Gables v Arch 202 Thanos5150 27-Oct-17 21:40
Re: Gables v Arch 221 Origyptian 27-Oct-17 22:40
Re: Gables v Arch 260 Barbelo 28-Oct-17 00:01
Re: Gables v Arch 258 Origyptian 28-Oct-17 10:03
Re: Gables v Arch 218 Barbelo 28-Oct-17 10:56
Re: Gables v Arch 350 Origyptian 28-Oct-17 13:30
Re: Gables v Arch 184 Barbelo 28-Oct-17 19:57
Re: Gables v Arch 172 Origyptian 28-Oct-17 22:45
Re: Gables v Arch 190 Barbelo 28-Oct-17 23:05
Re: Gables v Arch 200 R Avry Wilson 28-Oct-17 23:48
Re: Gables v Arch 237 Corpuscles 29-Oct-17 00:51
Re: Gables v Arch 217 Origyptian 29-Oct-17 05:19
Re: Mastaba of Shepsekaf 247 Origyptian 27-Oct-17 02:31
Re: Mastaba of Shepsekaf 207 Thanos5150 27-Oct-17 22:18
Re: Mastaba of Shepsekaf 187 Origyptian 27-Oct-17 22:50
Re: Mastaba of Shepsekaf 195 Thanos5150 27-Oct-17 23:46
Re: Mastaba of Shepsekaf 299 DUNE 27-Oct-17 07:58
Re: Mastaba of Shepsekaf 196 Thanos5150 27-Oct-17 22:04
Re: Mastaba of Shepsekaf 196 DUNE 27-Oct-17 23:08
Re: Mastaba of Shepsekaf 394 Thanos5150 28-Oct-17 02:34
Re: Mastaba of Shepsekaf 336 Corpuscles 28-Oct-17 04:43
Re: Mastaba of Shepsekaf 199 Barbelo 28-Oct-17 20:06
Re: Mastaba of Shepsekaf 276 Thanos5150 29-Oct-17 02:03
Re: Mastaba of Shepsekaf 235 Origyptian 29-Oct-17 05:16
Re: Mastaba of Shepsekaf 340 Thanos5150 29-Oct-17 05:39
Re: Mastaba of Shepsekaf 257 Origyptian 29-Oct-17 14:09
Re: Mastaba of Shepsekaf 232 Thanos5150 29-Oct-17 16:39
Re: Mastaba of Shepsekaf 257 Origyptian 29-Oct-17 16:56
Re: Mastaba of Shepsekaf 212 Thanos5150 28-Oct-17 16:00
Re: Mastaba of Shepsekaf 205 Barbelo 28-Oct-17 20:26


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