{"id":6894,"date":"2021-12-09T01:33:41","date_gmt":"2021-12-08T17:33:41","guid":{"rendered":"https:\/\/xzfastener.com\/?p=6894"},"modified":"2026-06-23T01:35:35","modified_gmt":"2026-06-22T17:35:35","slug":"anchor-bolt-load-capacity-tensile-shear-and-pull-out-strength","status":"publish","type":"post","link":"https:\/\/xzfastener.com\/fr\/anchor-bolt-load-capacity-tensile-shear-and-pull-out-strength\/","title":{"rendered":"Capacit\u00e9 de charge des boulons d'ancrage\u00a0: r\u00e9sistance \u00e0 la traction, au cisaillement et \u00e0 l'arrachement"},"content":{"rendered":"<p>Anchor bolt load capacity is often misunderstood in project purchasing. Many buyers ask, \u201cHow many tons can this anchor bolt hold?\u201d That sounds reasonable, but the real answer depends on more than the steel diameter or grade.<\/p>\n\n\n\n<p>An anchor bolt works as part of a system. The bolt, nut, washer, base plate, concrete strength, embedment depth, edge distance, spacing, installation method, and load direction all affect performance.<\/p>\n\n\n\n<p>If one of these is wrong, a strong anchor bolt can still fail on site.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Anchor Bolt Load Capacity Means<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Load Capacity Is Not One Single Number<\/h3>\n\n\n\n<p>Anchor bolts may face tension, shear, or combined loading. In real structures, these loads often act together.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Type de charge<\/th><th>Direction<\/th><th>Risque commun<\/th><\/tr><\/thead><tbody><tr><td>Charge de traction<\/td><td>Pulling force along the anchor axis<\/td><td>Steel fracture, concrete breakout, pull-out<\/td><\/tr><tr><td>Charge de cisaillement<\/td><td>Side force across the anchor<\/td><td>Steel shear, concrete edge breakout, pryout<\/td><\/tr><tr><td>Pull-out strength<\/td><td>Anchor slips or pulls from concrete<\/td><td>Poor embedment, wrong anchor type, weak concrete<\/td><\/tr><tr><td>Charge combin\u00e9e<\/td><td>Tension and shear together<\/td><td>Requires engineering review<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>For load-bearing anchor systems, buyers should review <a href=\"https:\/\/xzfastener.com\/fr\/products-category\/high-strength-fasteners\/\">attaches \u00e0 haute r\u00e9sistance<\/a> and confirm the full assembly before ordering.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">R\u00e9sistance \u00e0 la traction<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Steel Strength and Concrete Strength Both Matter<\/h3>\n\n\n\n<p>Tensile load tries to pull the anchor upward or outward from the concrete.<\/p>\n\n\n\n<p>A buyer may focus on the steel grade, such as ASTM F1554, 8.8, 10.9, or another project grade. That is important, but not enough. The concrete may fail before the steel reaches its limit.<\/p>\n\n\n\n<p>Tension-related failure modes may include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Anchor steel breaking<\/li>\n\n\n\n<li>Concrete cone breakout<\/li>\n\n\n\n<li>Pull-out from the hole<\/li>\n\n\n\n<li>Bond failure in adhesive anchors<\/li>\n\n\n\n<li>Splitting near edges or thin concrete sections<\/li>\n<\/ul>\n\n\n\n<p>This is why anchor bolts should not be selected by bolt diameter alone.<\/p>\n\n\n\n<p>For standard products and project hardware, buyers can start from <a href=\"https:\/\/xzfastener.com\/fr\/products-category\/standard-fasteners\/\">attaches standards<\/a> and then confirm whether the anchor needs project-specific calculations.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">R\u00e9sistance au cisaillement<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Side Load Requires Different Checks<\/h3>\n\n\n\n<p>Shear load pushes the anchor sideways. This is common in base plates, machinery foundations, guardrails, pipe supports, steel columns, and equipment skids.<\/p>\n\n\n\n<p>In shear, the anchor may fail through steel shear, concrete edge breakout, or pryout. The risk increases when anchors are close to an edge or installed in shallow concrete.<\/p>\n\n\n\n<p>Key factors include:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Diam\u00e8tre d'ancrage<\/li>\n\n\n\n<li>Steel material grade<\/li>\n\n\n\n<li>Concrete edge distance<\/li>\n\n\n\n<li>Profondeur d'encastrement<\/li>\n\n\n\n<li>Taille du trou de la plaque de base<\/li>\n\n\n\n<li>Zone d'appui de la rondelle<\/li>\n\n\n\n<li>Load direction and vibration<\/li>\n<\/ol>\n\n\n\n<p>Pour le support de rondelle sous les \u00e9crous d'ancrage, v\u00e9rifier <a href=\"https:\/\/xzfastener.com\/fr\/fastener-type\/washers\/\">produits de laveuse<\/a> et confirmez l'ID, le diam\u00e8tre ext\u00e9rieur, l'\u00e9paisseur, la duret\u00e9 et le rev\u00eatement.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Pull-Out Strength<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Installation Quality Controls the Result<\/h3>\n\n\n\n<p>Pull-out strength describes resistance against the anchor pulling out of the concrete. It is strongly affected by anchor type and installation quality.<\/p>\n\n\n\n<p>For mechanical anchors, hole diameter, embedment depth, torque, and concrete quality matter. For chemical anchors, hole cleaning, resin type, curing time, temperature, and moisture condition are critical.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Type d'ancre<\/th><th>Pull-Out Risk Factor<\/th><th>Ch\u00e8que de l'acheteur<\/th><\/tr><\/thead><tbody><tr><td>Ancre \u00e0 cale<\/td><td>Insufficient embedment or wrong torque<\/td><td>Hole size, depth, torque<\/td><\/tr><tr><td>Ancrage de manchon<\/td><td>Weak base material or poor expansion<\/td><td>Concrete or masonry condition<\/td><\/tr><tr><td>Ancre \u00e0 ins\u00e9rer<\/td><td>Improper setting<\/td><td>Outil de r\u00e9glage et engagement du filetage<\/td><\/tr><tr><td>Ancrage chimique<\/td><td>Poor hole cleaning or incomplete curing<\/td><td>Brush, blow, inject, cure time<\/td><\/tr><tr><td>Ancre coul\u00e9e<\/td><td>Wrong position or short projection<\/td><td>Template, embedment, thread length<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>For special anchor rods, long thread lengths, headed anchors, or L\/J anchor bolts, use <a href=\"https:\/\/xzfastener.com\/fr\/products-category\/custom-non-standard-fasteners\/\">fixations non standard sur mesure<\/a> and provide approved drawings before production.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Concrete and Embedment Factors<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">The Base Material Is Part of the Fastening System<\/h3>\n\n\n\n<p>Concrete strength affects anchor performance directly. A high-grade anchor installed in weak, cracked, thin, or damaged concrete may not reach the expected load capacity.<\/p>\n\n\n\n<p>Les acheteurs doivent confirmer\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>R\u00e9sistance \u00e0 la compression du b\u00e9ton<\/li>\n\n\n\n<li>\u00c9tat fissur\u00e9 ou non fissur\u00e9<\/li>\n\n\n\n<li>\u00c9paisseur de dalle ou de fondation<\/li>\n\n\n\n<li>Espacement des ancrages<\/li>\n\n\n\n<li>Distance au bord<\/li>\n\n\n\n<li>Profondeur d'encastrement<\/li>\n\n\n\n<li>Rebar interference<\/li>\n\n\n\n<li>Installation environment<\/li>\n<\/ul>\n\n\n\n<p>Do not assume that one anchor size works in every slab or foundation.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Rev\u00eatement et protection contre la corrosion<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Load Capacity Is Also a Service-Life Issue<\/h3>\n\n\n\n<p>Anchor bolts often work outdoors or near concrete moisture. Corrosion can reduce thread condition, nut engagement, and long-term service performance.<\/p>\n\n\n\n<p>Common finishes include plain steel, zinc plating, hot-dip galvanizing, zinc flake coating, and stainless steel.<\/p>\n\n\n\n<p>Pour les environnements ext\u00e9rieurs ou corrosifs, comparez <a href=\"https:\/\/xzfastener.com\/fr\/products-category\/various-coated-fasteners\/\">diverses attaches enduites<\/a> before confirming the finish. For severe corrosion exposure, <a href=\"https:\/\/xzfastener.com\/fr\/fastener-material\/stainless-steel\/\">attaches en acier inoxydable<\/a> may be considered, but strength requirements still need review.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">RFQ Checklist for Anchor Bolt Load Capacity<\/h2>\n\n\n\n<p>A useful anchor bolt RFQ should include:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Article de la demande de prix<\/th><th>Que pr\u00e9ciser<\/th><\/tr><\/thead><tbody><tr><td>Type d'ancre<\/td><td>Cast-in, wedge, sleeve, drop-in, chemical, headed<\/td><\/tr><tr><td>Taille<\/td><td>Diam\u00e8tre, longueur, longueur de filetage, encastrement<\/td><\/tr><tr><td>Qualit\u00e9 du mat\u00e9riau<\/td><td>F1554 grade, 8.8, 10.9, stainless, or drawing grade<\/td><\/tr><tr><td>\u00c9tat de charge<\/td><td>Tension, shear, pull-out, vibration, combined load<\/td><\/tr><tr><td>Concrete data<\/td><td>R\u00e9sistance, \u00e9paisseur, fissur\u00e9 ou non fissur\u00e9<\/td><\/tr><tr><td>Terminer<\/td><td>Plaine, zinc, HDG, flocons de zinc, inoxydable<\/td><\/tr><tr><td>Assembl\u00e9e<\/td><td>\u00c9crous, rondelles, plaques, gabarits<\/td><\/tr><tr><td>Documents<\/td><td>MTC, coating report, dimensional inspection<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Pour un approvisionnement plus large, les acheteurs peuvent consulter l'int\u00e9gralit\u00e9 <a href=\"https:\/\/xzfastener.com\/fr\/home\/products\/\">produits de fixation<\/a> range before finalizing the anchor system.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Conseil final<\/h2>\n\n\n\n<p>Anchor bolt load capacity depends on both steel and concrete. Tensile strength, shear strength, and pull-out performance must be reviewed together with embedment depth, edge distance, spacing, installation method, coating, and documentation.<\/p>\n\n\n\n<p>The safest purchasing approach is to define the application first, then select the anchor system. Do not approve anchor bolts by diameter, grade, or price alone.<\/p>","protected":false},"excerpt":{"rendered":"<p>Anchor bolt load capacity is often misunderstood in project purchasing. Many buyers ask, \u201cHow many tons can this anchor bolt hold?\u201d That sounds reasonable, but the real answer depends on more than the steel diameter or grade. An anchor bolt works as part of a system. The bolt, nut, washer, base plate, concrete strength, embedment [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[479],"tags":[498],"class_list":["post-6894","post","type-post","status-publish","format-standard","hentry","category-fastener-knowledge-library","tag-anchor-bolts-concrete-fasteners"],"acf":[],"_links":{"self":[{"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/posts\/6894","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/comments?post=6894"}],"version-history":[{"count":1,"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/posts\/6894\/revisions"}],"predecessor-version":[{"id":6895,"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/posts\/6894\/revisions\/6895"}],"wp:attachment":[{"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/media?parent=6894"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/categories?post=6894"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/tags?post=6894"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}