Bélidor, Bernard Forest de, La science des ingenieurs dans la conduite des travaux de fortification et d' architecture civile

Table of Notes

< >
[Note]
Page: 508
[Note]
Page: 508
[Note]
Page: 510
[Note]
Page: 510
[Note]
Page: 511
[Note]
Page: 511
[Note]
Page: 513
[Note]
Page: 513
[Note]
Page: 514
[Note]
Page: 514
[Note]
Page: 517
[Note]
Page: 517
[Note]
Page: 518
[Note]
Page: 518
[Note]
Page: 527
[Note]
Page: 527
[Note]
Page: 533
[Note]
Page: 533
[Note]
Page: 534
[Note]
Page: 534
[Note]
Page: 535
[Note]
Page: 552
[Note]
Page: 559
[Note]
Page: 561
[Note]
Page: 575
[Note]
Page: 575
[Note]
Page: 586
[Note]
Page: 587
[Note]
Page: 601
[Note]
Page: 601
< >
page |< < (70) of 695 > >|
    <echo version="1.0RC">
      <text xml:lang="fr" type="free">
        <div xml:id="echoid-div475" type="section" level="1" n="128">
          <p>
            <s xml:id="echoid-s11144" xml:space="preserve">
              <pb o="70" file="0536" n="586" rhead="LA SCIENCE DES INGENIEURS,"/>
            à commencer depuis les ſoûterrains juſqu’au comble: </s>
            <s xml:id="echoid-s11145" xml:space="preserve">ſans ces pré-
              <lb/>
            cautions, on s’expoſe à des inconveniens très-facheux, & </s>
            <s xml:id="echoid-s11146" xml:space="preserve">qui devien-
              <lb/>
            nent quelquefois irréparables; </s>
            <s xml:id="echoid-s11147" xml:space="preserve">car ce qui rend une diſtribution par-
              <lb/>
            faite, c’eſt l’arrangement naturel de toutes les piéces de l’Edifice,
              <lb/>
            dans leſquelles il faut conſerver la nobleſſe, la grandeur, & </s>
            <s xml:id="echoid-s11148" xml:space="preserve">la pro-
              <lb/>
            portion qui leur eſt convenable.</s>
            <s xml:id="echoid-s11149" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s11150" xml:space="preserve">Si nous avons ſurpaſſé les Anciens dans la diſtribution, parce qu’ils
              <lb/>
            pouvoient avoir moins de délicateſſe, ou que nous jugeons mal de
              <lb/>
            leur magnificence, on peur dire avec juſtice que nous ne ſommes
              <lb/>
            que leurs copiſtes pour la décoration, & </s>
            <s xml:id="echoid-s11151" xml:space="preserve">que la plus belle Architec-
              <lb/>
            ture de nosjours n’a de prix qu’autant qu’elle eſt conforme à la leur;
              <lb/>
            </s>
            <s xml:id="echoid-s11152" xml:space="preserve">mais il eſt plus difficile qu’on ne penſe de la bien imiter, puiſque
              <lb/>
            quelque habile que l’on ſoit on ne peut jamais s’aſſurer du ſuccès, ne
              <lb/>
            travaillant pour ainſi dire que par conjecture, n’ayant point de princi-
              <lb/>
            pes démontrés ſur leſquels on puiſſe ſe déterminer. </s>
            <s xml:id="echoid-s11153" xml:space="preserve">Si l’on peut ſe
              <lb/>
            fonder ſur quelques régles certaines, ce ne peut être que ſur celle de
              <lb/>
            la Perſpective qui pourra faire connoîtreles vraies proportions qu’on
              <lb/>
            doit ſuivre. </s>
            <s xml:id="echoid-s11154" xml:space="preserve">On doit donc s’apliquer avec tout le ſoin poſſible
              <lb/>
            à l’étude d’une ſcience ſi neceſſaire, & </s>
            <s xml:id="echoid-s11155" xml:space="preserve">dont l’union eſt ſi étroite
              <lb/>
            avec l’Architecture, qu’il eſt preſque impoſſible d’atteindre à la
              <lb/>
            perfection de celle-ci ſans avoir une connoiſſance très diſtincte
              <lb/>
            de l’autre; </s>
            <s xml:id="echoid-s11156" xml:space="preserve">car il ſe trouve dans la décoration des grands Edifices
              <lb/>
            tant de parties differentes, dont les unes ſont plus enfoncées que les
              <lb/>
            autres, qu’il faut convenir qu’on ne ſauroit guére juger de leurs
              <lb/>
            effets par une ſimple Elevation Géometralle.</s>
            <s xml:id="echoid-s11157" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s11158" xml:space="preserve">Les ſaillies les plus utiles & </s>
            <s xml:id="echoid-s11159" xml:space="preserve">les plus belles pour décorer les Bâ-
              <lb/>
            timens ſont les Corniches, parce qu’elles les couronnent avec grace
              <lb/>
            & </s>
            <s xml:id="echoid-s11160" xml:space="preserve">conſervent le parement contre les injures de l’air: </s>
            <s xml:id="echoid-s11161" xml:space="preserve">la hauteur & </s>
            <s xml:id="echoid-s11162" xml:space="preserve">
              <lb/>
              <note position="left" xlink:label="note-0536-01" xlink:href="note-0536-01a" xml:space="preserve">
                <emph style="sc">Planch</emph>
              .
                <lb/>
              48.</note>
            la ſaillie des Entablemens dépendent de l’élevation des Edifices & </s>
            <s xml:id="echoid-s11163" xml:space="preserve">
              <lb/>
            de la diſtance d’où ils doivent être vûs: </s>
            <s xml:id="echoid-s11164" xml:space="preserve">les moindres Corniches ſont
              <lb/>
            en Chanfrain, & </s>
            <s xml:id="echoid-s11165" xml:space="preserve">n’ont qu’une moulure couronnée comme un gros
              <lb/>
            Talon, un quart de rond, ou une Doucine avec quelques Filets ou
              <lb/>
            Aſtragales, ellesne s’employent qu’aux Bâtimens ruſtiques qu’on ne
              <lb/>
            veut point décorer; </s>
            <s xml:id="echoid-s11166" xml:space="preserve">mais quand on veut les faire plus riches, on
              <lb/>
            peut employer à propos celles de l’Entablement d’un des cinq Ordres,
              <lb/>
            ſelon qu’on juge qu’elles pourront convenir à l’Edifice: </s>
            <s xml:id="echoid-s11167" xml:space="preserve">ce qui neſe
              <lb/>
            fait guére que lorſqu’on employe tout l’Entablement du même Or-
              <lb/>
            dre, puiſqu’à le bien prendre il vaut mieux compoſerla Corniche ex-
              <lb/>
            près, afin d’avoir égard aux circonſtances les plus eſſentielles, ſoit
              <lb/>
            par raport aux differens effets que peuvent cauſer les moulures,
              <lb/>
            ou à la nature de la pierre, qui ne ſe rencontre pas toûjours pro- </s>
          </p>
        </div>
      </text>
    </echo>
Impressum