{"id":18709,"date":"2026-04-09T14:20:32","date_gmt":"2026-04-09T14:20:32","guid":{"rendered":"https:\/\/www.saltwater.nl\/?p=18709"},"modified":"2026-05-07T12:34:36","modified_gmt":"2026-05-07T12:34:36","slug":"a-frames","status":"publish","type":"post","link":"https:\/\/www.saltwater.nl\/nl\/projecten\/a-frames\/","title":{"rendered":"Van A-frames tot Z: Offshore hijsengineering"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_section full_width=&#8221;stretch_row&#8221; full_height=&#8221;yes&#8221; content_placement=&#8221;middle&#8221; css=&#8221;.vc_custom_1776085099308{background-image: url(https:\/\/www.saltwater.nl\/wp-content\/uploads\/2026\/04\/Geoquip-Silvretta.jpeg?id=18717) !important;background-position: center !important;background-repeat: no-repeat !important;background-size: cover !important;}&#8221; el_class=&#8221;banner banner-big height-735&#8243;][vc_row el_class=&#8221;gradient gradient-blue dg-position-none&#8221;][vc_column width=&#8221;2\/3&#8243;][\/vc_column][vc_column width=&#8221;1\/3&#8243;][\/vc_column][\/vc_row][\/vc_section][vc_row full_width=&#8221;stretch_row&#8221; el_class=&#8221;dg_triangle_small&#8221;][vc_column][vc_single_image image=&#8221;11101&#8243; img_size=&#8221;full&#8221; css=&#8221;.vc_custom_1628689390063{margin-bottom: 0px !important;}&#8221; el_class=&#8221;triangle-left-small&#8221;][\/vc_column][\/vc_row][vc_row full_width=&#8221;stretch_row&#8221; el_class=&#8221;dg-padding&#8211;mid&#8221;][vc_column][vc_row_inner gap=&#8221;35&#8243; el_class=&#8221;dg_triangle_inner_content&#8221;][vc_column_inner width=&#8221;7\/12&#8243;][vc_column_text css=&#8221;&#8221; el_class=&#8221;dg-padding&#8211;mid-bottom&#8221;]<ins datetime=\"2021-07-12T11:58:25+00:00\">Onze expertise<\/ins><\/p>\n<h1>Van A\u2011frames tot Z: complete engineering voor offshore hijssystemen<\/h1>\n<p>Wanneer operationele eisen veranderen en zwaardere equipment nodig is, moeten bestaande hijsoplossingen opnieuw worden bekeken om te zorgen dat ze nog steeds voldoen. Voor <a href=\"https:\/\/www.geoquip-marine.com\/\">Geoquip Marine<\/a> betekende dit een hernieuwde blik op hun A-frames. Zowel op een al aangepast systeem op de Saentis als op een nieuwe installatie aan boord van hun Silvretta.<\/p>\n<p>&nbsp;<\/p>\n<p>Wat was er precies nodig, waar lagen de uitdagingen en hoe zijn deze vanuit technisch oogpunt aangepakt? Voor deze projecten schakelde Geoquip Saltwater Engineering in om tot een doordachte en toekomstbestendige oplossing te komen. Voortbouwend op de uitgebreide operationele ervaring van Geoquip, werkten we tijdens het hele proces nauw samen.[\/vc_column_text][vc_column_text css=&#8221;&#8221;]<\/p>\n<h3>Veranderende hijseisen voor de Saentis<\/h3>\n<p>Het oorspronkelijke A\u2011frame van de Saentis is ooit aangepast door een verlengstuk tussen de poten toe te voegen, waarmee de beschikbare hijshoogte werd vergroot. Destijds werd de Working Load Limit (WLL) vastgesteld op basis van de apparatuur die specifiek voor die operatie nodig was.<\/p>\n<p>&nbsp;<\/p>\n<p>Inmiddels moeten echter aanzienlijk zwaardere systemen worden gehesen. Daarmee rees de vraag: is het aangepaste A\u2011frame in zijn huidige configuratie nog steeds structureel toereikend?<\/p>\n<p>&nbsp;<\/p>\n<p>Dat is het moment waarop Saltwater Engineering werd ingeschakeld.[\/vc_column_text][\/vc_column_inner][vc_column_inner width=&#8221;5\/12&#8243;][vc_single_image image=&#8221;18719&#8243; img_size=&#8221;full&#8221; css=&#8221;&#8221; el_class=&#8221;full-width-img&#8221;][vc_empty_space height=&#8221;50px&#8221;][vc_single_image image=&#8221;18721&#8243; img_size=&#8221;full&#8221; css=&#8221;&#8221; el_class=&#8221;full-width-img&#8221;][\/vc_column_inner][\/vc_row_inner][vc_row_inner][vc_column_inner][vc_empty_space height=&#8221;50px&#8221;][vc_column_text css=&#8221;&#8221;]<\/p>\n<h3>Structurele herbeoordeling van het aangepaste A\u2011frame<\/h3>\n<p>De scope van het werk omvat het hijsen van een Roson en een Vibrocorer. Uit onze structurele beoordeling, uitgevoerd met behulp van FEM\u2011analyses, bleek dat het bestaande A\u2011frame in zijn huidige configuratie niet in staat was deze belastingen veilig te dragen. Om die reden waren aanpassingen noodzakelijk en werd het A\u2011frame voorzien van twee nieuwe hijsogen:<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li>E\u00e9n op de hartlijn voor de Roson<\/li>\n<li>E\u00e9n excentrisch ten opzichte van de hartlijn voor de Vibrocorer<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>Tot slot werden de proof load procedures opgesteld en werd het A\u2011frame succesvol getest.[\/vc_column_text][vc_empty_space height=&#8221;80px&#8221;][vc_column_text css=&#8221;&#8221;]<\/p>\n<h3>Ontwerp van een nieuw 30\u2011tons A\u2011frame voor de Silvretta<\/h3>\n<p>Tegelijkertijd vroeg Geoquip ons om een nieuw A-frame te ontwerpen voor de Silvretta. Deze werd geplaatst op het achterschip, waarbij een deel van het shelter deck en de verschansing werd verwijderd om de installatie mogelijk te maken. Het systeem heeft een Safe Working Load (SWL) van 30 ton.<\/p>\n<p>&nbsp;<\/p>\n<p>De installatie van het A\u2011frame werd beoordeeld en goedgekeurd door DNV, met specifieke aandacht voor de aansluiting op de bestaande scheepsconstructie, waaronder de fundatie en dekverbindingen. Het A-frame zelf is ontworpen en gebouwd volgens de relevante DNV-regelgeving en standaarden.[\/vc_column_text][vc_empty_space height=&#8221;80px&#8221;][vc_column_text css=&#8221;&#8221;]<\/p>\n<h3>Volledige engineering scope en projectondersteuning<\/h3>\n<p>Binnen dit project heeft Saltwater Engineering een breed pakket aan werkzaamheden uitgevoerd. Zo zijn FEM-berekeningen uitgevoerd om de sterkte van zowel het A-frame als het dek te verifi\u00ebren. Daarnaast zijn de constructietekeningen opgesteld, evenals alle benodigde outfitting tekeningen voor onder andere trappen, bordessen en relingen.<\/p>\n<p>&nbsp;<\/p>\n<p>Ook zijn slooptekeningen gemaakt en tekeningen voor het herstellen van de constructie na verwijdering van bestaande delen. Hieronder vallen onder andere aanpassingen zoals het verplaatsen van deuren, bolders en trappen.<\/p>\n<p>&nbsp;<\/p>\n<p>Op basis van een 3D-scan is gecontroleerd of het dek voldoende vlak is voor de plaatsing van de fundatie. Verder is in nauwe samenwerking met Geoquip een load test arrangement en bijbehorend testprotocol opgesteld.<\/p>\n<p>&nbsp;<\/p>\n<p>Tijdens de bouwfase bood Saltwater Engineering tevens de bouwbegeleiding, waarbij nauw werd samengewerkt met de bouwer om vragen te beantwoorden en eventuele wijzigingen die tijdens de uitvoering ontstaan, adequaat door te voeren.[\/vc_column_text][vc_empty_space height=&#8221;80px&#8221;][vc_column_text css=&#8221;&#8221;]<\/p>\n<h3>Ondersteuning van veilige en betrouwbare offshore operaties<\/h3>\n<p>Deze projecten laten zien hoe Saltwater Engineering offshore operaties ondersteunt gedurende de volledige levenscyclus van complexe hijssystemen. Onze werkzaamheden zijn erop gericht om structurele integriteit, operationele eisen en veiligheidsmarges optimaal op elkaar af te stemmen. Door gedetailleerde structurele analyses te combineren met praktische engineeringoplossingen en nauwe samenwerking met alle betrokken partijen, stellen we onze klanten in staat om hun equipment met vertrouwen aan te passen aan veranderende eisen.<\/p>\n<p>&nbsp;<\/p>\n<p>Of het nu gaat om het upgraden van bestaande constructies of het ontwikkelen van nieuwe ontwerpen vanaf de basis, Saltwater Engineering levert oplossingen die robuust, transparant en direct inzetbaar zijn. Heeft uw project betrekking op hijsapparatuur, constructieve aanpassingen of complexe maritieme integraties? <a href=\"https:\/\/www.saltwater.nl\/nl\/contact\/\">Neem gerust contact op<\/a> met ons team en ontdek hoe wij waarde kunnen toevoegen aan uw offshore operaties.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row][vc_column][vc_icon icon_fontawesome=&#8221;fa fa-solid fa-quote-left&#8221; color=&#8221;custom&#8221; size=&#8221;lg&#8221; css=&#8221;&#8221; custom_color=&#8221;#FF6F00&#8243;][vc_row_inner][vc_column_inner width=&#8221;2\/3&#8243;][vc_column_text css=&#8221;&#8221;]<\/p>\n<h5>Geoquip Marine heeft nauw samengewerkt met Saltwater Engineering om een praktische en robuuste A-frame oplossing te realiseren, afgestemd op onze operationele eisen. Hun ondersteuning gedurende de ontwerp-, productie- en installatiefase heeft bijgedragen aan een soepele integratie met het schip en betrouwbare prestaties offshore.<\/h5>\n<p>[\/vc_column_text][\/vc_column_inner][vc_column_inner width=&#8221;1\/3&#8243;][vc_single_image image=&#8221;12218&#8243; img_size=&#8221;full&#8221; alignment=&#8221;center&#8221; css=&#8221;&#8221;][vc_column_text css=&#8221;&#8221;]<\/p>\n<p style=\"text-align: center;\"><strong>Nico Meijering<\/strong><\/p>\n<p style=\"text-align: center;\"><em>Head of Marine Operations<\/em><\/p>\n<p>[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row full_width=&#8221;stretch_row&#8221; el_class=&#8221;dg_triangle_inner_page dt_triangle_pt_0&#8243;][vc_column][vc_single_image image=&#8221;11097&#8243; img_size=&#8221;full&#8221; css=&#8221;.vc_custom_1627883481026{margin-bottom: 0px !important;}&#8221; el_class=&#8221;triangle-left-big-gray-wrapper&#8221;][vc_empty_space height=&#8221;80px&#8221;][vc_row_inner gap=&#8221;35&#8243; el_class=&#8221;dg_triangle_inner_content&#8221;][vc_column_inner width=&#8221;1\/2&#8243;][vc_column_text css=&#8221;.vc_custom_1747751472096{margin-bottom: 0px !important;}&#8221;]<ins datetime=\"2021-07-14T04:18:54+00:00\">Specificaties<\/ins><\/p>\n<h2>Projectinformatie<\/h2>\n<p>[\/vc_column_text][\/vc_column_inner][vc_column_inner el_class=&#8221;mobile-pt-0 mobile-pb-0&#8243; width=&#8221;1\/2&#8243; css=&#8221;.vc_custom_1627883992330{padding-top: 0px !important;padding-bottom: 0px !important;}&#8221;][\/vc_column_inner][\/vc_row_inner][vc_row_inner gap=&#8221;35&#8243; el_class=&#8221;dg_triangle_inner_content&#8221; css=&#8221;.vc_custom_1627883010475{margin-bottom: 0px !important;}&#8221;][vc_column_inner el_class=&#8221;mobile-pb-0&#8243; width=&#8221;1\/2&#8243;][vc_column_text css=&#8221;.vc_custom_1747751489458{margin-bottom: 0px !important;}&#8221; el_class=&#8221;dg-padding&#8211;small-bottom&#8221;]<b>Werkzaamheden:<\/b>[\/vc_column_text][vc_column_text css=&#8221;&#8221; el_class=&#8221;mobile-mb-0&#8243;]<\/p>\n<ul>\n<li>FEM-berekeningen voor de constructieve integriteit van het A-frame en integratie met het schip<\/li>\n<li>3D CAD-modellen van het A-frame<\/li>\n<li>3D-scan voor clashcontrole en uitlijning van het A-frame<\/li>\n<li>2D productietekeningen van het A-frame<\/li>\n<li>2D integratietekeningen voor het A-frame en scheepsaanpassingen<\/li>\n<li>FEM-berekeningen voor de integratie van bolders<\/li>\n<li>Ondersteuning tijdens productie \/ bouw<\/li>\n<li>Load test protocol en testopstelling<\/li>\n<\/ul>\n<p>[\/vc_column_text][\/vc_column_inner][vc_column_inner el_class=&#8221;mobile-pt-0&#8243; width=&#8221;1\/2&#8243;][vc_column_text css=&#8221;.vc_custom_1776085500586{margin-bottom: 0px !important;}&#8221; el_class=&#8221;dg-padding&#8211;small-bottom&#8221;]<b>Uitdagingen:<\/b>[\/vc_column_text][vc_column_text css=&#8221;&#8221; el_class=&#8221;mobile-mb-0&#8243;]<\/p>\n<ul>\n<li>Korte doorlooptijd<\/li>\n<li>Integratie van het schip met minimale impact op het bestaande schip<\/li>\n<\/ul>\n<p>[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner el_class=&#8221;dg_triangle_inner_content dg-padding&#8211;mid-top&#8221;][vc_column_inner width=&#8221;1\/3&#8243;][vc_single_image image=&#8221;18723&#8243; img_size=&#8221;full&#8221; css=&#8221;&#8221; el_class=&#8221;full-width-img mobile-bt-10&#8243;][\/vc_column_inner][vc_column_inner width=&#8221;1\/3&#8243;][vc_single_image image=&#8221;18725&#8243; img_size=&#8221;full&#8221; css=&#8221;&#8221; el_class=&#8221;full-width-img mobile-bt-10&#8243;][\/vc_column_inner][vc_column_inner width=&#8221;1\/3&#8243;][vc_single_image image=&#8221;18731&#8243; img_size=&#8221;full&#8221; css=&#8221;&#8221; el_class=&#8221;full-width-img&#8221;][\/vc_column_inner][\/vc_row_inner][vc_row_inner el_class=&#8221;dg_triangle_inner_content dg-padding&#8211;mid-top&#8221;][vc_column_inner width=&#8221;1\/3&#8243;][vc_single_image image=&#8221;18803&#8243; img_size=&#8221;full&#8221; css=&#8221;&#8221; el_class=&#8221;full-width-img mobile-bt-10&#8243;][\/vc_column_inner][vc_column_inner width=&#8221;1\/3&#8243;][vc_single_image image=&#8221;18805&#8243; img_size=&#8221;full&#8221; css=&#8221;&#8221; el_class=&#8221;full-width-img mobile-bt-10&#8243;][\/vc_column_inner][vc_column_inner width=&#8221;1\/3&#8243;][vc_single_image image=&#8221;18807&#8243; img_size=&#8221;full&#8221; css=&#8221;&#8221; el_class=&#8221;full-width-img&#8221;][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_section full_width=&#8221;stretch_row&#8221; el_class=&#8221;dg-background&#8211;split-footer dg-margin&#8211;mid-top&#8221;][vc_row][vc_column]<div class=\"templatera_shortcode\"><style type=\"text\/css\" data-type=\"vc_shortcodes-custom-css\">.vc_custom_1713517521866{padding-top: 40px !important;padding-bottom: 40px 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Saltwater<\/ins><\/p>\n<h2>Connect met ons op LinkedIn<\/h2>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><div class=\"dg-padding--none-inner wpb_column vc_column_container vc_col-sm-3\"><div class=\"vc_column-inner vc_custom_1713517551957\"><div class=\"wpb_wrapper\"><style type=\"text\/css\" data-type=\"the7_shortcodes-inline-css\">#default-btn-8cb40bf8558e0b220be80f820f1075d1.ico-right-side > i {\n  margin-right: 0px;\n  margin-left: 10px;\n}\n#default-btn-8cb40bf8558e0b220be80f820f1075d1 > i {\n  margin-right: 10px;\n}<\/style><a href=\"https:\/\/www.linkedin.com\/company\/saltwater-engineering\/\" class=\"default-btn-shortcode dt-btn dt-btn-m link-hover-off ico-right-side btn-inline-right \" target=\"_blank\" id=\"default-btn-8cb40bf8558e0b220be80f820f1075d1\" title=\"Connect\" rel=\"noopener\"><span>Volg<\/span><i class=\"icomoon-the7-font-the7-arrow-07\"><\/i><\/a><\/div><\/div><\/div><\/div><\/section><\/div>[\/vc_column][\/vc_row][\/vc_section]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Ontdek hoe Saltwater Engineering offshore hijsoperaties ondersteunt met betrouwbare A-frame oplossingen<\/p>\n","protected":false},"author":9,"featured_media":18805,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[261,114],"tags":[],"class_list":["post-18709","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-equipment-design-nl","category-projecten","category-261","category-114","description-off"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Van A-frames tot Z: Offshore hijsengineering<\/title>\n<meta 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