{"id":2370,"date":"2025-08-23T08:41:11","date_gmt":"2025-08-23T07:41:11","guid":{"rendered":"https:\/\/dhwnews.com\/?p=2370"},"modified":"2025-08-23T17:22:14","modified_gmt":"2025-08-23T16:22:14","slug":"black-potts-footbridge-structural-analysis-and-conclusions","status":"publish","type":"post","link":"https:\/\/dhwnews.com\/?p=2370","title":{"rendered":"Black Potts footbridge – structural analysis and conclusions"},"content":{"rendered":"

Black Potts Footbridge Structural Analysis and conclusions – with the assistance of a search engine and Ai (Claude).<\/p>\n

Below is the Black Potts footbridge in August 2004<\/p>\n

\"\"<\/p>\n

The following images are recent and unchanged.\u00a0 All dimensions and loads are estimated because the footbridge is no longer accessible.<\/span><\/strong><\/p>\n

\"\"<\/p>\n

Below is a close-up image of the ‘Bay 9’ structural issue.<\/p>\n

\"\"<\/p>\n

Below is the ‘Post 10’ block shear failure structural issue.<\/p>\n

\"\"<\/p>\n

The footbridge design is identified as a subdivided Warren\/Fink Truss – 10 Bay Configuration
\nDesign Parameters & Assumptions<\/strong>:
\n\u2022 Truss Type: Subdivided Warren Truss \/ Fink Truss configuration
\n\u2022 Structure: 10 rectangular bays, approx. 1.5m high \u00d7 2m long each
\n\u2022 Total span: 20m
\n\u2022 Total dead load: 10 tonnes (1000 kg\/m distributed)
\n\u2022 Live load: 5 kN\/m\u00b2 (pedestrian loading to BS EN 1991-2)
\n\u2022 Material: Timber construction
\n\u2022 Support conditions: Simply supported at ends
\n\u2022 Load combination: Dead Load + Live Load (critical case)
\n\u2022 Truss characteristic: Alternating diagonal pattern typical of Warren\/Fink design<\/p>\n

You will find additional notes, diagrams and a composite image using the link below<\/p>\n

Black Potts joint images 22-8-2025<\/strong><\/span><\/a><\/p>\n

In conclusion<\/strong><\/span> – the structural forces diagram and calculations highlight the inability of the bay 9 posts and diagonal to transfer any loads.\u00a0 Consequently those forces are transferred (as significant increases) to the top and bottom horizontals.<\/p>\n

END<\/p>\n","protected":false},"excerpt":{"rendered":"

Black Potts Footbridge Structural Analysis and conclusions – with the assistance of a search engine and Ai (Claude). Below is the Black Potts footbridge in August 2004 The following images are recent…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[159],"class_list":["post-2370","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-black-potts-footbridge"],"yoast_head":"\nBlack Potts footbridge - structural analysis and conclusions - DHWNEWS<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dhwnews.com\/?p=2370\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Black Potts footbridge - structural analysis and conclusions - DHWNEWS\" \/>\n<meta property=\"og:description\" content=\"Black Potts Footbridge Structural Analysis and conclusions – with the assistance of a search engine and Ai (Claude). Below is the Black Potts footbridge in August 2004 The following images are recent...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/dhwnews.com\/?p=2370\" \/>\n<meta property=\"og:site_name\" content=\"DHWNEWS\" \/>\n<meta property=\"article:published_time\" content=\"2025-08-23T07:41:11+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-23T16:22:14+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/dhwnews.com\/wp-content\/uploads\/2025\/08\/HPIM0139.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2272\" \/>\n\t<meta property=\"og:image:height\" content=\"1712\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"ecwlarcombe\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"ecwlarcombe\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/dhwnews.com\\\/?p=2370#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/dhwnews.com\\\/?p=2370\"},\"author\":{\"name\":\"ecwlarcombe\",\"@id\":\"https:\\\/\\\/dhwnews.com\\\/#\\\/schema\\\/person\\\/2f696cd1eb9c322931f8d0e39fdf8017\"},\"headline\":\"Black Potts footbridge – structural analysis and conclusions\",\"datePublished\":\"2025-08-23T07:41:11+00:00\",\"dateModified\":\"2025-08-23T16:22:14+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/dhwnews.com\\\/?p=2370\"},\"wordCount\":212,\"commentCount\":1,\"publisher\":{\"@id\":\"https:\\\/\\\/dhwnews.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/dhwnews.com\\\/?p=2370#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/dhwnews.com\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/HPIM0139-300x226.jpg\",\"keywords\":[\"Black Potts footbridge\"],\"articleSection\":[\"Uncategorized\"],\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/dhwnews.com\\\/?p=2370#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/dhwnews.com\\\/?p=2370\",\"url\":\"https:\\\/\\\/dhwnews.com\\\/?p=2370\",\"name\":\"Black Potts footbridge - structural analysis and conclusions - DHWNEWS\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/dhwnews.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/dhwnews.com\\\/?p=2370#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/dhwnews.com\\\/?p=2370#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/dhwnews.com\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/HPIM0139-300x226.jpg\",\"datePublished\":\"2025-08-23T07:41:11+00:00\",\"dateModified\":\"2025-08-23T16:22:14+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/dhwnews.com\\\/?p=2370#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/dhwnews.com\\\/?p=2370\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\\\/\\\/dhwnews.com\\\/?p=2370#primaryimage\",\"url\":\"https:\\\/\\\/dhwnews.com\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/HPIM0139.jpg\",\"contentUrl\":\"https:\\\/\\\/dhwnews.com\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/HPIM0139.jpg\",\"width\":2272,\"height\":1712},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/dhwnews.com\\\/?p=2370#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/dhwnews.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Black Potts footbridge – structural analysis and conclusions\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/dhwnews.com\\\/#website\",\"url\":\"https:\\\/\\\/dhwnews.com\\\/\",\"name\":\"DHWNEWS\",\"description\":\"Datchet, Horton & Wraysbury News\",\"publisher\":{\"@id\":\"https:\\\/\\\/dhwnews.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/dhwnews.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-GB\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/dhwnews.com\\\/#organization\",\"name\":\"DHWNEWS\",\"url\":\"https:\\\/\\\/dhwnews.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\\\/\\\/dhwnews.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/i0.wp.com\\\/dhwnews.com\\\/wp-content\\\/uploads\\\/2022\\\/10\\\/dhwlogo1.png?fit=357%2C334&ssl=1\",\"contentUrl\":\"https:\\\/\\\/i0.wp.com\\\/dhwnews.com\\\/wp-content\\\/uploads\\\/2022\\\/10\\\/dhwlogo1.png?fit=357%2C334&ssl=1\",\"width\":357,\"height\":334,\"caption\":\"DHWNEWS\"},\"image\":{\"@id\":\"https:\\\/\\\/dhwnews.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/dhwnews.com\\\/#\\\/schema\\\/person\\\/2f696cd1eb9c322931f8d0e39fdf8017\",\"name\":\"ecwlarcombe\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/0ec4f2fe12dab3e1b48c39a4b0633913d283908bffb9e52165186f1dc7fcee8d?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/0ec4f2fe12dab3e1b48c39a4b0633913d283908bffb9e52165186f1dc7fcee8d?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/0ec4f2fe12dab3e1b48c39a4b0633913d283908bffb9e52165186f1dc7fcee8d?s=96&d=mm&r=g\",\"caption\":\"ecwlarcombe\"},\"url\":\"https:\\\/\\\/dhwnews.com\\\/?author=1\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Black Potts footbridge - structural analysis and conclusions - DHWNEWS","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/dhwnews.com\/?p=2370","og_locale":"en_GB","og_type":"article","og_title":"Black Potts footbridge - structural analysis and conclusions - DHWNEWS","og_description":"Black Potts Footbridge Structural Analysis and conclusions – with the assistance of a search engine and Ai (Claude). Below is the Black Potts footbridge in August 2004 The following images are recent...","og_url":"https:\/\/dhwnews.com\/?p=2370","og_site_name":"DHWNEWS","article_published_time":"2025-08-23T07:41:11+00:00","article_modified_time":"2025-08-23T16:22:14+00:00","og_image":[{"width":2272,"height":1712,"url":"https:\/\/dhwnews.com\/wp-content\/uploads\/2025\/08\/HPIM0139.jpg","type":"image\/jpeg"}],"author":"ecwlarcombe","twitter_card":"summary_large_image","twitter_misc":{"Written by":"ecwlarcombe","Estimated reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/dhwnews.com\/?p=2370#article","isPartOf":{"@id":"https:\/\/dhwnews.com\/?p=2370"},"author":{"name":"ecwlarcombe","@id":"https:\/\/dhwnews.com\/#\/schema\/person\/2f696cd1eb9c322931f8d0e39fdf8017"},"headline":"Black Potts footbridge – structural analysis and conclusions","datePublished":"2025-08-23T07:41:11+00:00","dateModified":"2025-08-23T16:22:14+00:00","mainEntityOfPage":{"@id":"https:\/\/dhwnews.com\/?p=2370"},"wordCount":212,"commentCount":1,"publisher":{"@id":"https:\/\/dhwnews.com\/#organization"},"image":{"@id":"https:\/\/dhwnews.com\/?p=2370#primaryimage"},"thumbnailUrl":"https:\/\/dhwnews.com\/wp-content\/uploads\/2025\/08\/HPIM0139-300x226.jpg","keywords":["Black Potts footbridge"],"articleSection":["Uncategorized"],"inLanguage":"en-GB","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/dhwnews.com\/?p=2370#respond"]}]},{"@type":"WebPage","@id":"https:\/\/dhwnews.com\/?p=2370","url":"https:\/\/dhwnews.com\/?p=2370","name":"Black Potts footbridge - structural analysis and conclusions - DHWNEWS","isPartOf":{"@id":"https:\/\/dhwnews.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/dhwnews.com\/?p=2370#primaryimage"},"image":{"@id":"https:\/\/dhwnews.com\/?p=2370#primaryimage"},"thumbnailUrl":"https:\/\/dhwnews.com\/wp-content\/uploads\/2025\/08\/HPIM0139-300x226.jpg","datePublished":"2025-08-23T07:41:11+00:00","dateModified":"2025-08-23T16:22:14+00:00","breadcrumb":{"@id":"https:\/\/dhwnews.com\/?p=2370#breadcrumb"},"inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/dhwnews.com\/?p=2370"]}]},{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/dhwnews.com\/?p=2370#primaryimage","url":"https:\/\/dhwnews.com\/wp-content\/uploads\/2025\/08\/HPIM0139.jpg","contentUrl":"https:\/\/dhwnews.com\/wp-content\/uploads\/2025\/08\/HPIM0139.jpg","width":2272,"height":1712},{"@type":"BreadcrumbList","@id":"https:\/\/dhwnews.com\/?p=2370#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/dhwnews.com\/"},{"@type":"ListItem","position":2,"name":"Black Potts footbridge – structural analysis and conclusions"}]},{"@type":"WebSite","@id":"https:\/\/dhwnews.com\/#website","url":"https:\/\/dhwnews.com\/","name":"DHWNEWS","description":"Datchet, Horton & Wraysbury News","publisher":{"@id":"https:\/\/dhwnews.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/dhwnews.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-GB"},{"@type":"Organization","@id":"https:\/\/dhwnews.com\/#organization","name":"DHWNEWS","url":"https:\/\/dhwnews.com\/","logo":{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/dhwnews.com\/#\/schema\/logo\/image\/","url":"https:\/\/i0.wp.com\/dhwnews.com\/wp-content\/uploads\/2022\/10\/dhwlogo1.png?fit=357%2C334&ssl=1","contentUrl":"https:\/\/i0.wp.com\/dhwnews.com\/wp-content\/uploads\/2022\/10\/dhwlogo1.png?fit=357%2C334&ssl=1","width":357,"height":334,"caption":"DHWNEWS"},"image":{"@id":"https:\/\/dhwnews.com\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/dhwnews.com\/#\/schema\/person\/2f696cd1eb9c322931f8d0e39fdf8017","name":"ecwlarcombe","image":{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/secure.gravatar.com\/avatar\/0ec4f2fe12dab3e1b48c39a4b0633913d283908bffb9e52165186f1dc7fcee8d?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/0ec4f2fe12dab3e1b48c39a4b0633913d283908bffb9e52165186f1dc7fcee8d?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/0ec4f2fe12dab3e1b48c39a4b0633913d283908bffb9e52165186f1dc7fcee8d?s=96&d=mm&r=g","caption":"ecwlarcombe"},"url":"https:\/\/dhwnews.com\/?author=1"}]}},"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/dhwnews.com\/index.php?rest_route=\/wp\/v2\/posts\/2370","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dhwnews.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dhwnews.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dhwnews.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dhwnews.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2370"}],"version-history":[{"count":4,"href":"https:\/\/dhwnews.com\/index.php?rest_route=\/wp\/v2\/posts\/2370\/revisions"}],"predecessor-version":[{"id":2384,"href":"https:\/\/dhwnews.com\/index.php?rest_route=\/wp\/v2\/posts\/2370\/revisions\/2384"}],"wp:attachment":[{"href":"https:\/\/dhwnews.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2370"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dhwnews.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2370"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dhwnews.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2370"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}