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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 1515 Thanos5150 25-Oct-17 04:25
Quite the Mastaba...looks like walls can talk ;) 291 Racho 25-Oct-17 06:11
Re: Quite the Mastaba...looks like walls can talk ;) 231 Thanos5150 26-Oct-17 02:26
Why adapted/adopted 205 Racho 31-Oct-17 07:44
Re: Why adapted/adopted 335 Jon Ellison 31-Oct-17 09:25
Re: Quite the Mastaba...looks like walls can talk ;) 244 Barbelo 26-Oct-17 03:57
Gables v Arch 189 Barbelo 26-Oct-17 03:47
Re: Gables v Arch 210 Thanos5150 26-Oct-17 04:47
Re: Gables v Arch 199 Barbelo 26-Oct-17 05:12
Re: Gables v Arch 178 Thanos5150 26-Oct-17 05:39
Re: Gables v Arch 248 Barbelo 26-Oct-17 06:49
An Interesting Curve 219 Jon Ellison 26-Oct-17 23:20
Re: Gables v Arch 176 Thanos5150 27-Oct-17 00:34
Re: Gables v Arch 173 Barbelo 27-Oct-17 01:19
Re: Gables v Arch 177 Jon Ellison 27-Oct-17 01:36
Re: Gables v Arch 183 Jon Ellison 27-Oct-17 01:49
Re: Gables v Arch 168 Barbelo 27-Oct-17 02:05
Re: Gables v Arch 169 Jon Ellison 27-Oct-17 02:17
Re: Gables v Arch 179 Barbelo 27-Oct-17 02:27
Re: Gables v Arch 172 Jon Ellison 27-Oct-17 03:40
Re: Gables v Arch 178 Barbelo 27-Oct-17 05:22
Re: Gables v Arch 175 Jon Ellison 27-Oct-17 06:45
Gables v Arch vs Truss 213 Dr. Troglodyte 27-Oct-17 19:33
Re: Gables v Arch vs Truss 195 Jon Ellison 27-Oct-17 20:50
Re: Gables v Arch vs Truss 158 Jon Ellison 27-Oct-17 21:20
Re: Gables v Arch vs Truss 163 Jon Ellison 27-Oct-17 21:53
Re: Gables v Arch vs Truss 302 Dr. Troglodyte 27-Oct-17 22:47
Re: Gables v Arch vs Truss 171 Jon Ellison 28-Oct-17 07:34
Re: Gables v Arch vs Truss 350 Jon Ellison 28-Oct-17 07:53
Re: Gables v Arch vs Truss 189 Dr. Troglodyte 28-Oct-17 16:08
Re: Gables v Arch vs Truss 235 Jon Ellison 28-Oct-17 18:13
Re: Gables v Arch vs Truss 172 Dr. Troglodyte 28-Oct-17 16:07
Re: Gables v Arch 185 Thanos5150 27-Oct-17 21:40
Re: Gables v Arch 204 Origyptian 27-Oct-17 22:40
Re: Gables v Arch 241 Barbelo 28-Oct-17 00:01
Re: Gables v Arch 240 Origyptian 28-Oct-17 10:03
Re: Gables v Arch 202 Barbelo 28-Oct-17 10:56
Re: Gables v Arch 333 Origyptian 28-Oct-17 13:30
Re: Gables v Arch 165 Barbelo 28-Oct-17 19:57
Re: Gables v Arch 167 Origyptian 28-Oct-17 22:45
Re: Gables v Arch 172 Barbelo 28-Oct-17 23:05
Re: Gables v Arch 182 R Avry Wilson 28-Oct-17 23:48
Re: Gables v Arch 220 Corpuscles 29-Oct-17 00:51
Re: Gables v Arch 212 Origyptian 29-Oct-17 05:19
Re: Mastaba of Shepsekaf 226 Origyptian 27-Oct-17 02:31
Re: Mastaba of Shepsekaf 200 Thanos5150 27-Oct-17 22:18
Re: Mastaba of Shepsekaf 170 Origyptian 27-Oct-17 22:50
Re: Mastaba of Shepsekaf 175 Thanos5150 27-Oct-17 23:46
Re: Mastaba of Shepsekaf 281 DUNE 27-Oct-17 07:58
Re: Mastaba of Shepsekaf 176 Thanos5150 27-Oct-17 22:04
Re: Mastaba of Shepsekaf 177 DUNE 27-Oct-17 23:08
Re: Mastaba of Shepsekaf 368 Thanos5150 28-Oct-17 02:34
Re: Mastaba of Shepsekaf 315 Corpuscles 28-Oct-17 04:43
Re: Mastaba of Shepsekaf 183 Barbelo 28-Oct-17 20:06
Re: Mastaba of Shepsekaf 253 Thanos5150 29-Oct-17 02:03
Re: Mastaba of Shepsekaf 217 Origyptian 29-Oct-17 05:16
Re: Mastaba of Shepsekaf 321 Thanos5150 29-Oct-17 05:39
Re: Mastaba of Shepsekaf 253 Origyptian 29-Oct-17 14:09
Re: Mastaba of Shepsekaf 212 Thanos5150 29-Oct-17 16:39
Re: Mastaba of Shepsekaf 238 Origyptian 29-Oct-17 16:56
Re: Mastaba of Shepsekaf 193 Thanos5150 28-Oct-17 16:00
Re: Mastaba of Shepsekaf 184 Barbelo 28-Oct-17 20:26


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