







Anchor bolts, the unsung heroes of industrial foundations, are meticulously engineered pre-embedded components designed to be firmly set within concrete foundations. Their primary purpose is to securely fasten the bases of various machines and equipment, ensuring stability and safety.
1, Classification and Appearance
Anchor bolts are elegantly classified into four main types: fixed anchor bolts, movable anchor bolts, expansion anchor bolts, and bonded anchor bolts. Each type serves a distinct function and is crafted in various appearances, including L-shaped, 9-shaped, U-shaped, and welded embedded bolts, to meet diverse installation needs.
1. Fixed anchor bolts: These are integrally poured with the foundation and are ideal for securing equipment that does not experience significant vibration or impact.
2. Active anchor bolts: Versatile and detachable, they are the go-to choice for anchoring heavy machinery that encounters intense vibrations and impacts, offering robust performance and ease of maintenance.
3. Expansion anchor anchor bolt: Ingeniously designed to expand and anchor within concrete through rotation or tapping, these bolts are perfect for securing simple or auxiliary equipment that remains stationary.
4. Adhesive anchor bolts: In recent years, the adhesive method for fixing bolts to concrete foundations has gained popularity due to its efficiency and flexibility in diverse applications.
2, Material and Strength
Anchor bolts are primarily fashioned from durable steel materials, including carbon structural steels like Q235, Q345, and high-performance alloy steels. These materials are celebrated for their excellent plasticity, toughness, and ability to maintain integrity under stress, reducing the risk of breakage or deformation. The tensile strength of these bolts hinges on their cross-sectional area and allowable stress, with various materials offering distinct tensile strength grades.
3, Installation method
Anchor bolts are installed using two primary methods: the one-time embedding method and the reserved hole method, each offering distinct advantages for specific equipment requirements.
1. One-time embedding method: This technique involves embedding anchor bolts during the concrete pouring process, making it ideal for high-vibration equipment, such as towering structures.
2. Reserved hole method: Initially, holes are reserved. Once the equipment is in place, anchor bolts are inserted and secured by pouring concrete. This method is preferred for fixed or low-vibration equipment installations.
4, Precautions for use
The selection of anchor bolts must be meticulously aligned with the equipment's weight, stress conditions, and operational environment to ensure maximum efficiency and safety.
During installation, accurate positioning and secure fixation of anchor bolts are paramount. Pre-tensioning should be performed according to specified force requirements to guarantee optimal performance.
Regular inspections are crucial to monitor and tighten any loose anchor bolts. For those subjected to harsh environmental conditions, implementing anti-corrosion measures is essential to prolong their operational lifespan.
5, Application scenarios
Anchor bolts find extensive application across various industries, securing equipment, embedding steel structure foundations, stabilizing street lamps, supporting traffic signs, and anchoring pumps, boilers, and heavy installations. They are indispensable for ensuring the safe, stable operation of diverse equipment and structural systems.
Serving as vital fasteners, anchor bolts play an indispensable role in the steadfast fixation of machines and equipment, underpinning their operational stability and safety.