XQV BJM15 Flat Anchor – Compact Multi-Strand Flat Anchorage for Post-Tensioning

Space-Saving Flat Anchor for Bridge Diaphragms, Thin Slabs & Confined Sections

Product Introduction

XQV Flat Anchor is a key component used for anchoring prestressed steel bars or strands in concrete structures. Its working principle is based on the combination of mechanical interlocking and friction anchorage. It is made of high-strength steel, has a flat shape, and is provided with holes (such as flat holes) on the surface that match the prestressed tendons, and is used in conjunction with anchor clips. The BJM15 series flat anchor is specifically designed for applications where structural height is limited, such as bridge diaphragms, thin slabs, and narrow beam sections, providing reliable anchorage in confined spaces.

Key Features & Advantages

📐 Flat Compact Design: Low-profile shape fits into shallow structural elements where round anchors cannot be used.

🔗 Multi-Strand Anchorage: Available for 2 to 5 strands (15.2mm / 0.6″), meeting various design requirements.

⚙️ High-Strength Steel: Manufactured from premium materials for reliable load transfer and long-term durability.

🧩 Mechanical + Friction Anchorage: Combines interlocking and wedging action for high anchoring efficiency (ηa ≥95%).

📜 Compliant Standards: Manufactured to GB/T14370-2015, JT/T329-2010, TB/T3193, ISO, CE, ASTM, BS.

Technical Parameter

Model	Anchor Plate (mm)			Bearing Plate (mm)				Spiral (mm)				Corrugated Pipe ID (mm)
	A1	B1	H	A2	B2	L	G	C	D	H	E
BJM15-2	79	48	48	150	70	110	6.5	110	80	50	200	50×22
BJM15-3	112	48	48	180	70	130	6.5	130	90	50	200	60×22
BJM15-4	145	48	48	210	70	160	6.5	160	90	50	250	70×22
BJM15-5	178	48	48	250	70	180	6.5	210	90	50	250	90×22

* All dimensions in mm. Data for reference only; custom sizes available upon request.

Parts Specification

Component Name	Specification	Materials	Surface Treatment	PAG Method	Standard
Anchor Head	with 2 to 5 holes	40Cr	Corrosion Protection	cardboard box or wooden case	GB/T14370-2015, JT/T329-2010, TB/T3193, ISO, CE, ASTM, BS…
Wedge	–	20CrMnTi	Corrosion Protection	cardboard box or wooden case	GB/T14370-2015, JT/T329-2010, TB/T3193, ISO, CE, ASTM, BS…

* Custom specifications and packaging available upon request.

Application

XQV BJM15 Flat Anchor is specifically designed for post-tensioning applications where structural height is restricted. Its flat configuration allows reliable anchorage in shallow concrete members. Typical applications include:

Bridge Diaphragms: Used in post-tensioned cross beams and diaphragms of box girder and segmental bridges. The flat anchor fits within limited vertical space while anchoring multiple strands.

Thin Concrete Slabs: Applied in post-tensioned flat slabs, ribbed slabs, and band beams in residential and commercial buildings. Low-profile design prevents concrete cover issues.

Beam-Column Joints & Transfer Girders: Anchors prestressing strands in heavily reinforced, confined areas such as transfer girders and deep beam-column connections.

Parking Structures: Used in post-tensioned slab systems of multi-story parking garages, where floor thickness is minimized to reduce construction cost.

Precast Segmental Box Girders: Anchors longitudinal or transverse tendons in segmental bridge construction, especially in narrow web sections.

Structural Strengthening: Applied in external post-tensioning for strengthening existing beams and slabs, where shallow anchor heads are required to avoid interfering with building finishes.

Workshop

Our Manufacturing Base – Liuzhou Xuanqiao Prestressed Machinery Co., Ltd.

Located in Liuzhou, Guangxi – a key industrial hub for prestressed technology – our modern workshop covers over 10,000㎡. We operate CNC machining centers, automated assembly lines, and precision testing equipment to ensure consistent quality.

Every batch of raw material is inspected, and finished products (anchors, jacks, pumps, ducts) are tested in our in‑house laboratory for mechanical performance and pressure resistance. We are certified under ISO 9001:2015 and comply with FIP international standards.

Annual capacity: 6 million anchor holes and 1,000+ sets of hydraulic equipment. Our experienced technicians and engineers follow strict SOPs to guarantee reliability.

We maintain sufficient raw material inventory and finished goods for fast delivery. Continuous investment in equipment and training keeps us at the forefront of prestressed manufacturing – because a strong factory means reliable products and long‑term trust.