Frame Reinforcement
Overview
Frame anchoring is a specialized construction method for embedding steel reinforcement bars (rebar) into existing concrete or masonry structures. It is widely used in retrofitting projects to improve structural stability, particularly in seismic zones or aging buildings. The technique involves drilling holes into the substrate, injecting epoxy adhesive, and inserting steel bars to create a monolithic connection. This process is critical for transferring loads between new and existing structural elements, ensuring long-term durability.
Structure and Working Principle
The system consists of three core components: high-strength steel bars, epoxy-based anchoring adhesive, and the substrate (concrete/masonry). The adhesive bonds the rebar to the substrate, creating a load-transfer mechanism. Proper installation requires precise hole diameter (typically 1.5× rebar diameter) and depth (10–20× diameter). The epoxy must fully encapsulate the rebar to prevent corrosion and ensure uniform stress distribution. Modern formulations cure rapidly while maintaining high bond strength (>15 MPa).
Key Features
Frame anchoring systems offer exceptional tensile strength, often exceeding 500 MPa for grade 500 rebar. Epoxy adhesives provide chemical resistance to moisture and alkalis, crucial for long-term performance. Unlike mechanical anchors, this method distributes stress evenly without creating localized pressure points. It’s also adaptable to complex geometries, making it ideal for irregular structural connections. Fire-resistant epoxy variants are available for high-temperature environments.
Application Areas
Primary applications include building retrofits, bridge repairs, and industrial facility upgrades. It’s mandatory in seismic retrofits to meet codes like ACI 318 and Eurocode 8. In B2B contexts, contractors use frame anchoring for steel-to-concrete connections in column/wall extensions, canopy installations, and machinery foundations. Recent innovations include carbon-fiber-reinforced polymer (CFRP) bars for corrosive environments.
Maintenance and Precautions
Post-installation inspections should verify adhesive coverage via pull-out testing (per ASTM E488). Avoid loading anchors during the curing period (typically 24–72 hours). Common failures stem from improper hole cleaning (dust/oil residues) or incorrect mixing ratios of epoxy components. In cold climates, heated curing chambers may be necessary to achieve optimal bond strength.
B2B Procurement Guide
Procure rebar with mill certificates confirming yield strength and elongation properties. Epoxy should have ETA or ICC-ES evaluation reports for compliance. Bulk pricing breaks occur at ~1,000 units; lead times vary by bar diameter (common sizes: 12mm–25mm). For projects with vibration risks, specify ‘crack-resistant’ epoxy grade. Always request technical datasheets with temperature/load curves.
Related Manufacturers
- 主营：聚合物修补加固砂浆、水泥基灌浆料、环氧树脂灌浆料、环氧树脂植筋胶、道路快速修补料、聚合物防水防腐砂浆、聚丙烯乳液砂浆、环氧树脂胶泥、环氧树脂砂浆、水泥基渗透结晶防水涂料、混凝土防碳化涂料、环氧灌浆树脂胶、裂缝空鼓胶、环氧树脂粘钢胶、环氧树脂碳布胶、环氧树脂界面胶、J302环氧界面剂、J303混凝土起沙处理剂、EC-1高强界面剂、108浓缩建筑胶粉、环氧树脂涂料、水泥基自流平砂浆、碳纤维布
- 主营：高强无收缩灌浆料、环氧胶泥、道路快速修补料、环氧植筋胶、聚合物改性水泥砂浆、水泥基渗透结晶、混凝土防碳化涂料、环氧树脂砂浆、聚合物防水砂浆、水泥自流平、丙乳砂浆、环氧粘钢胶、环氧碳布胶、裂缝修补胶、界面剂、108胶粉、环氧界面胶、封缝胶、环氧树脂注浆液
- 主营：粘钢胶、聚合物砂浆、灌浆料、植筋胶、修补料、环氧树脂砂浆、环氧树脂胶泥、碳布胶、裂缝空鼓胶、修补砂浆、加固砂浆、防水砂浆、防腐砂浆、起砂处理剂、界面剂、环氧树脂结构胶、防碳化涂料、水泥基渗透结晶、108胶粉、道路抢修料
- 主营：高强无收缩灌浆料、环氧砂浆、路面修补料、耐高温植筋胶、抢修料、水泥自流平
- 主营：混凝土切割拆除、桥梁切割、水下混凝土切割拆除、植筋加固、钻孔工程、绳锯切割、支撑梁切割、楼梯切割、墙体切割、开门洞
- 主营：灌浆料、道路抢修料、加固砂浆、沥青冷补料、自流平、界面剂、修补砂浆、混凝土修补料、色差修复剂、粘钢胶、丙乳砂浆、环氧砂浆、聚合物水泥砂浆、路面修复剂
- 主营：灌浆料、加固材料、重力砂浆、植筋胶、修补砂浆、高延性混凝土、高延 性混凝土、环氧砂浆、环氧树脂灌浆料、水泥自流平
- 主营：TD道钉锚固剂、环氧灌浆料、支座灌浆料、A类加固植筋胶、聚合物砂浆、ECM环氧修补砂浆、快速道路修补料、改性聚合物水泥砂浆、RC聚合物加固砂浆、C110灌浆料、水泥基渗透结晶、碳纤维布、混凝土表面增强剂、2#胶晶、自密实混凝土、高强耐磨料、C80灌浆料、高强修补砂浆、灌浆树脂胶、灌注粘钢胶、环氧界面剂、环氧树脂胶泥、锚固剂、环氧砂浆、路面薄层修补料
- 主营：点荷仪、检测仪、切割机、反力支撑框架、沥青蜡、分析仪、测试仪、收缩皿、测定仪、稠度仪、电流仪、回弹仪、比长仪、油漆涂料、试块模具、玻璃试管、水泥净浆、铸铁模具、塑料试模、电子台秤、水泥砂浆、高速剪切机、沥青取样器、泥浆比重计、渗水试验仪、多功能夹具
- 主营：测试仪、试验机、试验箱、植筋钢筋锚杆拉拔仪、测定仪、切割机、试验仪、密度试验、乳化沥青、电动击实仪、自动拌和机、沥青车辙试验、路面材料扭剪、沥青旋转薄膜、合成材料磨损、间粘结力拉拔、混合料拌和机、粗粒土垂直渗透仪、粗粒土相对密度仪、脱模器、门窗性能检测、冻融试验箱、混凝土检测仪器、水泥检测仪器、电工套管实验仪器、土壤检测仪器
- 主营：门窗胶、除胶剂、脱漆剂、高强植筋胶、松动剂、玻璃胶、耐候胶、防霉胶、理石胶、免钉胶、背景墙、美缝剂、自喷漆、自动喷漆、工程门窗、加厚手柄、装修密封胶、门窗速干胶、幕墙结构胶、超炫亮黑胶、强力粘结剂、硅酮结构胶、合成胶粘剂、耐候密封胶、清洗泡沫胶
- 主营：加固胶、钢筋锚、碳纤维布、植筋胶、钢板胶粘剂、结构胶粘剂、加固强力胶、强力结构胶、高强锚固胶、环氧树脂胶、强力粘合剂、工程专用材料、环氧基结构胶、改性环氧树脂、种植用结构胶、碳纤维浸渍胶、工程用结构胶、高强加固树脂、加固纤维材料、加固用结构胶、桥梁建筑结构、环氧结构粘钢胶、钢筋锚固胶、结构加固碳纤维胶、粘刚胶
- 主营：防水防腐砂浆、色差修复剂、环氧树脂胶泥、植筋胶、粘钢胶、碳布胶、修补加固砂浆、防碳化涂料、灌浆料、混凝土保护剂、混凝土界面剂、界面胶、丙乳砂浆、道路修补料、108胶粉
- 主营：环氧胶泥、环氧树脂砂浆、灌浆料、植筋胶、道钉锚固剂、聚合物修补砂浆、灌浆树脂、粘钢胶、混凝土界面剂、混凝土表面增强剂、支座砂浆、重力砂浆、水泥混凝土修补料、高强聚合物砂浆、环氧树脂灌缝胶、碳纤维布、环氧修补砂浆、水泥地面修补施工、支座灌浆料、道路修补料、聚合物加固砂浆、混凝土路面修补施工、起砂处理剂、碳纤维浸渍胶、清水混凝土保护剂
- 主营：钢结构、建筑加固、基础压桩、新建墙体框架柱子、粘钢加固、外包钢柱子、混凝土切割、粘碳纤维加固、建筑结构加固、缺陷混凝土置换、成都加固公司、四川加固公司、四川桥梁加固公司、裂缝加固、裂缝修补、加固改造、顶升纠偏、德阳加固公司、绵阳加固公司、乐山加固公司、广州加固公司、广东加固公司、东莞加固公司、眉山加固公司