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Groups > comp.os.linux.misc > #91443
| From | "Carlos E.R." <robin_listas@es.invalid> |
|---|---|
| Newsgroups | comp.os.linux.misc |
| Subject | Glulam |
| Date | 2026-09-14 22:01 +0200 |
| Organization | Tebibyte_Retro_Gaming |
| Message-ID | <ud0mnmxh7k.ln2@Telcontar.valinor> (permalink) |
| References | (6 earlier) <KnKdnbcr3s6dizv3nZ2dnZfqnPidnZ2d@giganews.com> <qbfinmxr0q.ln2@Telcontar.valinor> <1186vi0$t9tg$13@dont-email.me> <32djnmxi01.ln2@Telcontar.valinor> <pdidneI6SfWeyTr3nZ2dnZfqn_idnZ2d@giganews.com> |
On 2026-09-14 03:55, c186282 wrote:
> On 9/13/26 16:18, Carlos E.R. wrote:
>> On 2026-09-13 22:03, The Natural Philosopher wrote:
>>> On 13/09/2026 12:51, Carlos E.R. wrote:
>>>> Flat roofs we have in the millions, they are normal here. Commercial
>>>> buildings with flat concrete or metal roof, very normal. Typically
>>>> concrete pillars and metal horizontal support beams.
>>>>
>>>> But wood beams, not single beams, but made from multiple horizontal
>>>> beams tied together with bolts and girdles (see the photo), is new.
>>>> It must be superior to metal beams somehow.
>>>
>>> Its cheap and shitty, but probably works
>>>
>>> Superior only in cost.
>>
>> From the wikipedia article, it is superior in more things.
>
> Ummm ... depends ... pretty much "not really".
> WOOD is just TOO vulnerable - rot and bugs,
> plus it expands and shrinks constantly.
>
> Metal/concrete ... there's your 100 plus year roof.
>
It is way more complex than that.
Advantages
Advantages to using glulam in construction:
* Size and shape - By laminating a number of smaller pieces of
lumber into a single large structural member, the dimensions of glulam
members are only limited by transport and handling rather than the size
of a tree like sawn lumber. This also enables the use of smaller trees
harvested from second-growth forests and plantations rather than relying
on old-growth forests.[12] Glulam can also be manufactured in a variety
of shapes, so it offers architects artistic freedom without sacrificing
structural requirements.[13]
* Versatility - Because the size and shape of glulam members can be
so variable, they are able to be used as both beams and columns.[13]
* Strength and stiffness - Glulam has a higher strength to weight
ratio compared to both concrete and steel. Glulam also reduces the
impact defects in the wood have on the strength of the member making it
stronger than sawn lumber as well.[14] Glulam has also been proven to
have a higher resistance to lateral-torsional buckling than steel.[15]
* Environmentally friendly - Glulam has much lower embodied energy
than reinforced concrete and steel because the laminating process allows
the timber to be used for much longer spans, heavier loads, and more
complex shapes than reinforced concrete or steel. The embodied energy to
produce it is one sixth of that of a comparable strength of steel.[16]
Also, as glulam is a wood product, it naturally sequesters carbon,
keeping it from being released into the atmosphere.[17] As long as the
wood used to manufacture the glulam members comes from a sustainably
managed forest, glulam is a renewable resource.[18]
* Fire safety - While glulam is inherently flammable because it is
made of wood, if it catches on fire a char layer forms that protects the
interior of the member and thus maintains the strength of the member for
some time.[19]
Disadvantages
* Material cost - Glulam may be more costly than concrete at high
axial loads, though this depends on location and availability/ abundance
of either material.[17] While glulam beams may be cheaper than HEA steel
beams in some cases, it is not a significant difference.[15]
* Moisture - Glulam, especially when used for bridge projects, is
susceptible to changes in moisture which can impact its strength. The
bending strength of glulam exposed to a number of wet/dry cycles can
decrease dramatically (by 43.5% in one study).[20]
* Dimensions - Compared to steel, glulam generally requires larger
members to support the same load, although glulam member sizes may be
similar to reinforced concrete. The cross-sectional area and height of
glulam members are significantly greater than those of steel to perform
the same function.[15] Compared to reinforced concrete, the relative
size of glulam members depends on the loading applied.[17]
* Biodegradation - As a wood product, glulam is subject to concern
regarding biodegradation. In regions with higher risk, measures to
protect the glulam need to be taken.[21]
--
Cheers, Carlos.
ES🇪🇸, EU🇪🇺;
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OT : MAY Have To Build New House - CBC On PIERS ??? c186282 <c186282@nnada.net> - 2026-09-10 01:22 -0400
Re: OT : MAY Have To Build New House - CBC On PIERS ??? The Natural Philosopher <tnp@invalid.invalid> - 2026-09-10 11:46 +0100
Re: OT : MAY Have To Build New House - CBC On PIERS ??? c186282 <c186282@nnada.net> - 2026-09-11 01:43 -0400
Re: OT : MAY Have To Build New House - CBC On PIERS ??? "Carlos E. R." <robin_listas@es.invalid> - 2026-09-11 11:40 +0200
Re: OT : MAY Have To Build New House - CBC On PIERS ??? c186282 <c186282@nnada.net> - 2026-09-11 23:49 -0400
Re: OT : MAY Have To Build New House - CBC On PIERS ??? "Carlos E.R." <robin_listas@es.invalid> - 2026-09-12 13:33 +0200
Re: OT : MAY Have To Build New House - CBC On PIERS ??? The Natural Philosopher <tnp@invalid.invalid> - 2026-09-12 17:46 +0100
Re: OT : MAY Have To Build New House - CBC On PIERS ??? "Carlos E.R." <robin_listas@es.invalid> - 2026-09-12 21:47 +0200
Re: OT : MAY Have To Build New House - CBC On PIERS ??? c186282 <c186282@nnada.net> - 2026-09-13 00:45 -0400
Re: OT : MAY Have To Build New House - CBC On PIERS ??? rbowman <bowman@montana.com> - 2026-09-12 18:58 +0000
Re: OT : MAY Have To Build New House - CBC On PIERS ??? c186282 <c186282@nnada.net> - 2026-09-12 23:59 -0400
Re: OT : MAY Have To Build New House - CBC On PIERS ??? c186282 <c186282@nnada.net> - 2026-09-12 23:17 -0400
Re: OT : MAY Have To Build New House - CBC On PIERS ??? "Carlos E.R." <robin_listas@es.invalid> - 2026-09-13 13:51 +0200
Re: OT : MAY Have To Build New House - CBC On PIERS ??? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2026-09-13 16:30 +0000
Re: OT : MAY Have To Build New House - CBC On PIERS ??? "Carlos E.R." <robin_listas@es.invalid> - 2026-09-13 19:45 +0200
Re: OT : MAY Have To Build New House - CBC On PIERS ??? The Natural Philosopher <tnp@invalid.invalid> - 2026-09-13 21:05 +0100
Re: OT : MAY Have To Build New House - CBC On PIERS ??? "Carlos E.R." <robin_listas@es.invalid> - 2026-09-13 22:17 +0200
Re: OT : MAY Have To Build New House - CBC On PIERS ??? The Natural Philosopher <tnp@invalid.invalid> - 2026-09-13 21:03 +0100
Re: OT : MAY Have To Build New House - CBC On PIERS ??? "Carlos E.R." <robin_listas@es.invalid> - 2026-09-13 22:18 +0200
Re: OT : MAY Have To Build New House - CBC On PIERS ??? c186282 <c186282@nnada.net> - 2026-09-13 21:55 -0400
Glulam "Carlos E.R." <robin_listas@es.invalid> - 2026-09-14 22:01 +0200
Re: OT : MAY Have To Build New House - CBC On PIERS ??? rbowman <bowman@montana.com> - 2026-09-13 20:07 +0000
Re: OT : MAY Have To Build New House - CBC On PIERS ??? The Natural Philosopher <tnp@invalid.invalid> - 2026-09-11 10:47 +0100
Re: OT : MAY Have To Build New House - CBC On PIERS ??? c186282 <c186282@nnada.net> - 2026-09-12 01:03 -0400
Re: OT : MAY Have To Build New House - CBC On PIERS ??? The Natural Philosopher <tnp@invalid.invalid> - 2026-09-12 11:04 +0100
Re: OT : MAY Have To Build New House - CBC On PIERS ??? "Carlos E.R." <robin_listas@es.invalid> - 2026-09-12 13:48 +0200
Re: OT : MAY Have To Build New House - CBC On PIERS ??? The Natural Philosopher <tnp@invalid.invalid> - 2026-09-12 17:48 +0100
Re: OT : MAY Have To Build New House - CBC On PIERS ??? "Carlos E.R." <robin_listas@es.invalid> - 2026-09-12 13:40 +0200
Re: OT : MAY Have To Build New House - CBC On PIERS ??? The Natural Philosopher <tnp@invalid.invalid> - 2026-09-12 17:47 +0100
Re: OT : MAY Have To Build New House - CBC On PIERS ??? c186282 <c186282@nnada.net> - 2026-09-12 23:29 -0400
Re: OT : MAY Have To Build New House - CBC On PIERS ??? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2026-09-13 05:09 +0000
Re: OT : MAY Have To Build New House - CBC On PIERS ??? c186282 <c186282@nnada.net> - 2026-09-13 02:33 -0400
Re: OT : MAY Have To Build New House - CBC On PIERS ??? The Natural Philosopher <tnp@invalid.invalid> - 2026-09-13 10:00 +0100
Re: OT : MAY Have To Build New House - CBC On PIERS ??? c186282 <c186282@nnada.net> - 2026-09-13 19:50 -0400
Re: OT : MAY Have To Build New House - CBC On PIERS ??? rbowman <bowman@montana.com> - 2026-09-14 03:32 +0000
Re: OT : MAY Have To Build New House - CBC On PIERS ??? c186282 <c186282@nnada.net> - 2026-09-14 00:24 -0400
Re: OT : MAY Have To Build New House - CBC On PIERS ??? The Natural Philosopher <tnp@invalid.invalid> - 2026-09-14 11:09 +0100
Re: OT : MAY Have To Build New House - CBC On PIERS ??? Andy Burns <usenet@andyburns.uk> - 2026-09-14 12:57 +0100
Re: OT : MAY Have To Build New House - CBC On PIERS ??? The Natural Philosopher <tnp@invalid.invalid> - 2026-09-14 19:09 +0100
Re: OT : MAY Have To Build New House - CBC On PIERS ??? "Carlos E.R." <robin_listas@es.invalid> - 2026-09-13 13:57 +0200
Re: OT : MAY Have To Build New House - CBC On PIERS ??? Stéphane CARPENTIER <sc@fiat-linux.fr> - 2026-09-13 12:23 +0000
Re: OT : MAY Have To Build New House - CBC On PIERS ??? "Carlos E.R." <robin_listas@es.invalid> - 2026-09-13 19:47 +0200
Re: OT : MAY Have To Build New House - CBC On PIERS ??? Robert Riches <spamtrap42@jacob21819.net> - 2026-09-11 16:22 +0000
Re: OT : MAY Have To Build New House - CBC On PIERS ??? c186282 <c186282@nnada.net> - 2026-09-12 02:21 -0400
Re: OT : MAY Have To Build New House - CBC On PIERS ??? The Natural Philosopher <tnp@invalid.invalid> - 2026-09-12 11:22 +0100
Re: OT : MAY Have To Build New House - CBC On PIERS ??? Robert Riches <spamtrap42@jacob21819.net> - 2026-09-12 19:29 +0000
Re: OT : MAY Have To Build New House - CBC On PIERS ??? c186282 <c186282@nnada.net> - 2026-09-13 00:16 -0400
Re: OT : MAY Have To Build New House - CBC On PIERS ??? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2026-09-13 05:09 +0000
Re: OT : MAY Have To Build New House - CBC On PIERS ??? Robert Riches <spamtrap42@jacob21819.net> - 2026-09-10 16:06 +0000
Re: OT : MAY Have To Build New House - CBC On PIERS ??? c186282 <c186282@nnada.net> - 2026-09-11 02:42 -0400
Re: OT : MAY Have To Build New House - CBC On PIERS ??? Lars Poulsen <lars@beagle-ears.com> - 2026-09-10 09:46 -0700
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