{"id":2905,"date":"2025-02-12T09:14:15","date_gmt":"2025-02-12T07:14:15","guid":{"rendered":"https:\/\/katsourisengineering.com\/structural-reinforcement-of-a-five-story-reinforced-concrete-building\/"},"modified":"2025-09-08T01:05:57","modified_gmt":"2025-09-07T22:05:57","slug":"structural-reinforcement-of-a-five-story-reinforced-concrete-building","status":"publish","type":"post","link":"https:\/\/katsourisengineering.com\/en\/structural-reinforcement-of-a-five-story-reinforced-concrete-building\/","title":{"rendered":"Structural Reinforcement of a Five-Story Reinforced Concrete Building"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Objective: increase load-bearing capacity in line with current seismic requirements and codes. Application of modern materials and techniques with minimal interventions, maintaining building operation and minimizing disruption to occupants and neighbors.<\/p>\n\n<h2 class=\"wp-block-heading\">Project Facts<\/h2>\n\n<ul class=\"wp-block-list\">\n<li><strong>Building:<\/strong> Five-storey reinforced-concrete structure (existing)<\/li>\n\n\n\n<li><strong>Scope:<\/strong> Structural strengthening of primary RC members while the property remained in use<\/li>\n\n\n\n<li><strong>Our role:<\/strong> Structural Adequacy Assessment, intervention design, site supervision &amp; coordination<\/li>\n<\/ul>\n\n<figure data-wp-context=\"{&quot;galleryId&quot;:&quot;6a4726906dd47&quot;}\" data-wp-interactive=\"core\/gallery\" class=\"wp-block-gallery has-nested-images columns-4 is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6a472690719c0&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6a472690719c0\" class=\"wp-block-image size-large wp-lightbox-container\"><img fetchpriority=\"high\" decoding=\"async\" width=\"576\" height=\"1024\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-id=\"4505\" src=\"https:\/\/katsourisengineering.com\/wp-content\/uploads\/2025\/02\/statiki-enisxisi-oplismeno-skyrodema-2-576x1024.jpg\" alt=\"Substrate preparation and dowel anchoring on reinforced-concrete column\" class=\"wp-image-4505\" srcset=\"https:\/\/katsourisengineering.com\/wp-content\/uploads\/2025\/02\/statiki-enisxisi-oplismeno-skyrodema-2-576x1024.jpg 576w, https:\/\/katsourisengineering.com\/wp-content\/uploads\/2025\/02\/statiki-enisxisi-oplismeno-skyrodema-2-169x300.jpg 169w, https:\/\/katsourisengineering.com\/wp-content\/uploads\/2025\/02\/statiki-enisxisi-oplismeno-skyrodema-2.jpg 675w\" sizes=\"(max-width: 576px) 100vw, 576px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6a472690723cd&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6a472690723cd\" class=\"wp-block-image size-large wp-lightbox-container\"><img decoding=\"async\" width=\"576\" height=\"1024\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-id=\"4499\" src=\"https:\/\/katsourisengineering.com\/wp-content\/uploads\/2025\/02\/statiki-enisxisi-oplismeno-skyrodema-3-576x1024.jpg\" alt=\"Reinforcement cage for column jacketing before concrete pour\" class=\"wp-image-4499\" srcset=\"https:\/\/katsourisengineering.com\/wp-content\/uploads\/2025\/02\/statiki-enisxisi-oplismeno-skyrodema-3-576x1024.jpg 576w, https:\/\/katsourisengineering.com\/wp-content\/uploads\/2025\/02\/statiki-enisxisi-oplismeno-skyrodema-3-169x300.jpg 169w, https:\/\/katsourisengineering.com\/wp-content\/uploads\/2025\/02\/statiki-enisxisi-oplismeno-skyrodema-3.jpg 675w\" sizes=\"(max-width: 576px) 100vw, 576px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6a47269072c81&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6a47269072c81\" class=\"wp-block-image size-large wp-lightbox-container\"><img decoding=\"async\" width=\"765\" height=\"1024\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-id=\"4503\" src=\"https:\/\/katsourisengineering.com\/wp-content\/uploads\/2025\/02\/statiki-enisxisi-oplismeno-skyrodema-4-765x1024.jpg\" alt=\"Exposed rebar on existing reinforced-concrete element\" class=\"wp-image-4503\" srcset=\"https:\/\/katsourisengineering.com\/wp-content\/uploads\/2025\/02\/statiki-enisxisi-oplismeno-skyrodema-4-765x1024.jpg 765w, https:\/\/katsourisengineering.com\/wp-content\/uploads\/2025\/02\/statiki-enisxisi-oplismeno-skyrodema-4-224x300.jpg 224w, https:\/\/katsourisengineering.com\/wp-content\/uploads\/2025\/02\/statiki-enisxisi-oplismeno-skyrodema-4-768x1028.jpg 768w, https:\/\/katsourisengineering.com\/wp-content\/uploads\/2025\/02\/statiki-enisxisi-oplismeno-skyrodema-4-1147x1536.jpg 1147w, https:\/\/katsourisengineering.com\/wp-content\/uploads\/2025\/02\/statiki-enisxisi-oplismeno-skyrodema-4.jpg 1195w\" sizes=\"(max-width: 765px) 100vw, 765px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6a47269073530&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6a47269073530\" class=\"wp-block-image size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"461\" height=\"1024\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-id=\"4500\" src=\"https:\/\/katsourisengineering.com\/wp-content\/uploads\/2025\/02\/statiki-enisxisi-oplismeno-skyrodema-5-461x1024.jpg\" alt=\"Completed reinforced-concrete jacket with new stirrups on column\" class=\"wp-image-4500\" srcset=\"https:\/\/katsourisengineering.com\/wp-content\/uploads\/2025\/02\/statiki-enisxisi-oplismeno-skyrodema-5-461x1024.jpg 461w, https:\/\/katsourisengineering.com\/wp-content\/uploads\/2025\/02\/statiki-enisxisi-oplismeno-skyrodema-5-135x300.jpg 135w, https:\/\/katsourisengineering.com\/wp-content\/uploads\/2025\/02\/statiki-enisxisi-oplismeno-skyrodema-5-691x1536.jpg 691w, https:\/\/katsourisengineering.com\/wp-content\/uploads\/2025\/02\/statiki-enisxisi-oplismeno-skyrodema-5.jpg 720w\" sizes=\"(max-width: 461px) 100vw, 461px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/figure>\n\n<h2 class=\"wp-block-heading\">Objectives &amp; Constraints<\/h2>\n\n<p class=\"wp-block-paragraph\">Increase load-bearing capacity in line with KANEPE\/EC8 while <strong>minimising disruption<\/strong> to occupants and neighbours, <strong>keeping the building operational<\/strong>, and meeting programme\/budget.<\/p>\n\n<h2 class=\"wp-block-heading\">Investigation &amp; Testing<\/h2>\n\n<ul class=\"wp-block-list\">\n<li>Survey of defects\/cracks and reinforcement mapping (pacometry).<\/li>\n\n\n\n<li>Local openings and bond checks; concrete testing (e.g., rebound\/cores where required).<br\/><\/li>\n\n\n\n<li>Carbonation\/corrosion assessment and loading\/use documentation.<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">Strengthening Strategy<\/h2>\n\n<ul class=\"wp-block-list\">\n<li><strong>RC jacketing<\/strong> to columns\/shear walls with new stirrups and anchors (dowels, shear connectors), substrate preparation and cast-in-place\/shotcrete overlays.<\/li>\n\n\n\n<li><strong>Local beam\/joint upgrades<\/strong> to improve shear capacity and ductility.<\/li>\n\n\n\n<li><strong>Repair works<\/strong> to deteriorated areas with repair mortars and rebar protection.<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">Construction Method &amp; Phasing<\/h2>\n\n<ol class=\"wp-block-list\">\n<li>Selective removals\/exposures; surface roughening and cleaning.<\/li>\n\n\n\n<li>Drilling and <strong>anchoring of dowels<\/strong>; placement of new reinforcement cages.<\/li>\n\n\n\n<li>Formwork and <strong>jacketing concretes<\/strong> (or shotcrete as applicable); curing.<\/li>\n\n\n\n<li>Finishes reinstatement, cleaning and final checks.<\/li>\n<\/ol>\n\n<h2 class=\"wp-block-heading\">Quality Assurance &amp; Reporting<\/h2>\n\n<ul class=\"wp-block-list\">\n<li>Pre-pour rebar inspections, cube tests, and as-built documentation.<\/li>\n\n\n\n<li><strong>Frequent progress reports to the owner<\/strong> with photographic records.<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">Outcome<\/h2>\n\n<p class=\"wp-block-paragraph\">Substantial increase in capacity and ductility, full compliance with KANEPE\/EC8, and minimal disturbance while keeping the building fully operational.<br\/><\/p>\n\n<p class=\"wp-block-paragraph\"><strong>Need strengthening for an occupied building?<\/strong> We deliver SAA, intervention design and site coordination with a focus on safety and speed.<\/p>\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-100 is-style-outline is-style-outline--2\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/katsourisengineering.com\/en\/offer\/\" style=\"border-radius:2px\">Request a quote<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-100 is-style-outline is-style-outline--3\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/katsourisengineering.com\/en\/contact\/\" style=\"border-radius:2px\">Contact us<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Objective: increase load-bearing capacity in line with current seismic requirements and codes. Application of modern materials and techniques with minimal interventions, maintaining building operation and minimizing disruption to occupants and neighbors. Project Facts Objectives &amp; Constraints Increase load-bearing capacity in line with KANEPE\/EC8 while minimising disruption to occupants and neighbours, keeping the building operational, and [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4498,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31],"tags":[],"class_list":["post-2905","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-structural-studies-structural-reinforcements"],"_links":{"self":[{"href":"https:\/\/katsourisengineering.com\/en\/wp-json\/wp\/v2\/posts\/2905","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/katsourisengineering.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/katsourisengineering.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/katsourisengineering.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/katsourisengineering.com\/en\/wp-json\/wp\/v2\/comments?post=2905"}],"version-history":[{"count":0,"href":"https:\/\/katsourisengineering.com\/en\/wp-json\/wp\/v2\/posts\/2905\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/katsourisengineering.com\/en\/wp-json\/wp\/v2\/media\/4498"}],"wp:attachment":[{"href":"https:\/\/katsourisengineering.com\/en\/wp-json\/wp\/v2\/media?parent=2905"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/katsourisengineering.com\/en\/wp-json\/wp\/v2\/categories?post=2905"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/katsourisengineering.com\/en\/wp-json\/wp\/v2\/tags?post=2905"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}