Embedded Steel Plate Anchor Cage
Overview
Embedded steel plate anchor cages are prefabricated assemblies integrating a base plate with welded anchor bolts or rebar cages. They serve as critical connection points between concrete foundations and superstructures, ensuring stability under dynamic loads like wind or seismic forces. Widely used in civil engineering and industrial construction, these components are designed to meet ISO 1461 and ASTM A36/A572 standards. Their modular design allows customization for projects ranging from skyscrapers to power plant equipment. The steel plate typically features pre-drilled holes for secondary bolted connections, while the embedded anchors provide pull-out resistance through mechanical interlock with concrete.
Structure and Working Principle
A standard unit consists of a 10–50mm thick steel plate welded to L-shaped or J-shaped anchor rods (Φ12–Φ36mm). The rods extend into the concrete foundation, forming a bond through adhesion and mechanical friction. Finite element analysis (FEA) is often employed to optimize stress distribution across the plate-anchor interface. During installation, the cage is suspended in the formwork before concrete pouring. The exposed plate surface later connects to structural steel columns via high-strength bolts. Some advanced designs incorporate shear keys or perforations to enhance concrete-steel composite action, reducing stress concentrations at connection points.
Key Features
Modern anchor cages prioritize anti-corrosion performance, with hot-dip galvanizing (80–100μm coating) being the most common protection method. For coastal or chemical plant applications, stainless steel (304/316 grade) or epoxy-painted variants are available. Load capacity ranges from 50kN to over 2000kN, determined by anchor diameter, embedment depth, and concrete strength. Customizations include slotted holes for alignment adjustments, non-shrink grout pockets, or seismic-resistant ductile detailing. Third-party certifications like CE or GB/T 1591 validate mechanical properties.
Application Areas
1. Bridge construction: Anchor piers to pile caps while accommodating thermal expansion. 2. Power infrastructure: Secure turbine foundations in thermal/nuclear plants. 3. Prefabricated buildings: Connect steel frames to cast-in-place footings. 4. Heavy machinery: Bolt presses, cranes, or reactors to vibration-resistant bases. In seismic zones, engineers specify ductile anchor designs with energy-absorbing detailing. Modular data centers increasingly use these cages for rapid deployment of steel-framed server halls.
Maintenance and Precautions
Pre-installation checks should verify anchor perpendicularity (±2° tolerance) and plate flatness (≤3mm/m). Post-installation, apply rust inhibitors to exposed threads if the superstructure isn’t immediately erected. Common failures include concrete spalling due to insufficient edge distance (min 5× anchor diameter) or hydrogen embrittlement of galvanized anchors in high-strength concrete. Regular inspections should monitor for coating degradation or bolt loosening in service.
B2B Procurement Guide
Bulk buyers should request mill test reports (MTRs) for material traceability and factory production control certificates. Lead times vary from 2–8 weeks depending on customization complexity. Key negotiation points include: 1) MOQ discounts (typically 100+ units), 2) FOB vs. CIF pricing, 3) non-destructive testing (UT/MPI) requirements. Reputable manufacturers in China cluster in Shandong and Jiangsu provinces, offering EN 1090-2 or AWS D1.1 compliant welding.
Related Manufacturers
- 主营：预埋件、地脚螺栓、高强度螺栓、异形件
- 主营：不锈钢井盖、球墨铸铁管、井盖、地脚螺栓、方管、镀锌钢管、螺旋管、声测管、钢材、槽钢、工字钢、精密钢管、防腐无缝钢管、圆钢、扁钢、直缝钢管、排水沟盖板、钢铁、管材、涂塑钢管、彩钢瓦、无缝管、钢花管、镀锌角钢、大口径直缝钢管
- 主营：声测管、新兴铸管、镀锌角钢、预埋件、钢板加工、树脂排水沟、镀锌方管、工角槽、扁钢、螺栓、镀锌管、防沉降铸铁井盖、钢材、h型钢、方管钢材、焊接加工、井盖、水槽、工字钢、槽钢、圆钢、钢模板、无缝钢管、不锈钢、镀锌板
- 主营：螺纹钢、锚杆托、钢筋梯、预埋件、预埋角钢、定位钢板、法兰钢板、锚杆钢、短锚杆、锚杆垫片、钢筋接头、基坑锚具、托盘定制、托盘锚索、支护锚杆、优良锚杆、煤矿垫板、锚索锚杆、支护锚具、螺旋锚杆、锚具煤矿、砂浆锚杆、支护材料、金属锚杆、左旋锚杆
- 主营：传力杆、防落梁挡块、高铁桥墩吊围栏、地脚螺栓、支座预埋钢板、遮板预埋件、声屏障预埋件、t型钢、螺母筒、声屏障立柱、U型螺栓、紧固件
- 主营：钢横梁、吊围栏、检查梯、高铁桥梁预埋件、预埋t钢、地铁管片预埋件、栏杆预埋件、地脚螺栓、预埋钢板、预埋套筒、支座钢板、防落梁挡块、声屏障立柱、接触网、下锚拉线、桥栏遮板
- 主营：楼梯踏步、防水套管、大口径钢护筒、预埋钢板、特厚板钢板、中厚钢板、水中桩钢护筒
- 主营：管拉弯、电镀锌、屋面板、预埋件、厚钢板、防尘网、矩形管、钢结构、椭圆管、轨道钢、黑角铁、锅炉板、工字钢、200方管、700零开、锌卷板、低合金、三角铁、六角管、热镀锌、混凝土、彩图板、无缝管、来图纸、钢承板
- 主营：地脚螺栓、预埋钢板、路灯预埋件、高铁预埋件、建筑配件、工矿配件、铁路配件
- 主营：水泥盖板、混凝土盖板、手孔井、预埋基础座、排水沟盖板、混凝土篦子、地沟盖板、下水道盖板
- 主营：宽厚板、钢护筒、钢花管、不锈钢板、钢板卷管、钢板卷筒、钢板护筒、钢板管道、螺旋管、穿线管、复合钢管、排水钢管、钢质护筒、衬塑钢管、不锈钢管、涂塑钢管、无缝钢管、热轧圆钢、护筒接头、焊接钢管、工字钢、槽钢、角钢、扁钢、堆焊耐磨板
- 主营：桥梁安全爬梯、防落梁 挡块、检查梯、预埋件、地脚螺栓、吊围栏、钢横梁
- 主营：激光切管加工、切割钣金加工
- 主营：镀锌管、不锈钢管、槽钢、不锈钢板、镀锌钢板、钢板加工、花纹钢板、方矩管、h型钢、角钢、花纹板、圆钢、冷板、工字钢、热轧卷板
- 主营：压轨器、轨距拉杆、橡胶垫板、钢板切割、轨道压板、轨道夹板、轨道垫板、轨道连接板、铁路道钉、鱼尾螺栓、铁路弹条、固轨器、焊接压板、钢轨压板、道夹板、鱼尾板、钢轨夹板、焊接压轨器、钢轨垫板、轨距挡板