{"id":31913,"date":"2026-08-21T22:17:06","date_gmt":"2026-08-21T22:17:06","guid":{"rendered":"https:\/\/support.buildsoft.eu\/docs\/whitepapers\/g2-en-1991-1-4\/section-6-wind-velocity-and-velocity-pressure\/"},"modified":"2026-08-24T14:11:59","modified_gmt":"2026-08-24T14:11:59","slug":"section-6-wind-velocity-and-velocity-pressure","status":"publish","type":"docs","link":"https:\/\/support.buildsoft.eu\/es\/docs\/whitepapers\/g2-en-1991-1-4\/section-6-wind-velocity-and-velocity-pressure\/","title":{"rendered":"Section 6: Wind velocity and velocity pressure"},"content":{"rendered":"\n

<\/p>\n\n\n\n

6.1 Basis for calculation<\/h2>\n\n\n\n

6.2 Basic values<\/h2>\n\n\n\n

6.3 Mean wind velocity and pressure<\/h2>\n\n\n\n

6.3.1 Variation with height<\/h3>\n\n\n\n

6.3.2 Terrain roughness<\/h3>\n\n\n\n
Terrain category<\/strong><\/td>z<\/strong>0<\/sub>[m]<\/strong><\/td>z<\/strong>min<\/sub>[m]<\/strong><\/td>k<\/strong>r<\/sub><\/td><\/tr>
0\u00a0\u00a0\u00a0Sea or coastal area <\/td>0,003<\/td>1<\/td>0,16<\/td><\/tr>
I\u00a0\u00a0\u00a0Lakes or flat and horizontal area <\/td>0,01<\/td>1<\/td>0,17<\/td><\/tr>
II\u00a0\u00a0Area with low vegetation <\/td>0,05<\/td>2<\/td>0,19<\/td><\/tr>
III\u00a0Area with regular cover of vegetation or buildings or with isolated obstacles <\/td>0,3<\/td>5<\/td>0,22<\/td><\/tr>
IV\u00a0Area in which at least 15\u00a0% of the surface is covered with buildings and civil engineering works or forest<\/td>1,0<\/td>10<\/td>0,23<\/td><\/tr><\/tbody><\/table>
Table 6.1<\/figcaption><\/figure>\n\n\n\n

<\/p>\n\n\n\n

6.3.3 Terrain orography<\/h3>\n\n\n\n

(6.13) <\/span>   <\/span>\"\[c_e(z) = \frac{q_p(z)}{q_b} = c_r^2(z) \cdot c_o^2(z) \cdot \left[1 + g_u \cdot I_u(z)\right]^2 \]\"<\/p><\/p>\n\n\n\n

6.3.4 Large and considerably higher neighbouring structures<\/h3>\n\n\n\n

Not implemented in Diamonds.<\/p>\n\n\n\n

6.3.5 Closely spaced buildings or civil engineering works and obstacles<\/h3>\n\n\n\n

Not implemented in Diamonds.<\/p>\n\n\n\n

6.4 Wind turbulence<\/h2>\n\n\n\n

6.5 Peak wind velocity and peak velocity pressure<\/h2>\n","protected":false},"featured_media":0,"parent":28735,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","doc_tag":[],"comment_count":0,"_links":{"self":[{"href":"https:\/\/support.buildsoft.eu\/es\/wp-json\/wp\/v2\/docs\/31913"}],"collection":[{"href":"https:\/\/support.buildsoft.eu\/es\/wp-json\/wp\/v2\/docs"}],"about":[{"href":"https:\/\/support.buildsoft.eu\/es\/wp-json\/wp\/v2\/types\/docs"}],"replies":[{"embeddable":true,"href":"https:\/\/support.buildsoft.eu\/es\/wp-json\/wp\/v2\/comments?post=31913"}],"version-history":[{"count":7,"href":"https:\/\/support.buildsoft.eu\/es\/wp-json\/wp\/v2\/docs\/31913\/revisions"}],"predecessor-version":[{"id":31927,"href":"https:\/\/support.buildsoft.eu\/es\/wp-json\/wp\/v2\/docs\/31913\/revisions\/31927"}],"up":[{"embeddable":true,"href":"https:\/\/support.buildsoft.eu\/es\/wp-json\/wp\/v2\/docs\/28735"}],"next":[{"title":"Annex B","link":"https:\/\/support.buildsoft.eu\/es\/docs\/whitepapers\/g2-en-1991-1-4\/annex-b\/","href":"https:\/\/support.buildsoft.eu\/es\/wp-json\/wp\/v2\/docs\/29140"}],"wp:attachment":[{"href":"https:\/\/support.buildsoft.eu\/es\/wp-json\/wp\/v2\/media?parent=31913"}],"wp:term":[{"taxonomy":"doc_tag","embeddable":true,"href":"https:\/\/support.buildsoft.eu\/es\/wp-json\/wp\/v2\/doc_tag?post=31913"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}