1. This regulation applies to the design of anchor bolts for stationary petrochemical process equipment.
2. The anchor bolts of machine, pump and other sizing equipment are generally random accessories. If necessary, they can also be selected according to this regulation.
3. Unshaped equipment such as towers, vessels, heat exchangers, etc. can be equipped with anchor bolts in accordance with this regulation.
4. Two methods are generally used to embed anchor bolts into the concrete foundation, namely, pre-embedded and reserved hole secondary grouting embedding method. Article 2.0.2 The method of burying anchor bolts directly in the foundation is suitable for towers, taller containers, spherical tanks and mechanical equipment with greater vibration. Article 2.0.3 When the anchor bolts are directly buried, the distance between the center line of the anchor bolts and the edge of the foundation shall be a≥100mm. When it cannot be satisfied, the civil engineering professional must be asked to strengthen the foundation reinforcement.
5. Reserve the anchor bolt hole, put in the anchor bolt and grouting to fix it. This method is suitable for static equipment such as ** containers, heat exchangers, small vertical containers, and machines and pumps with less vibration. Its characteristic is to facilitate the adjustment of the anchor bolt positioning size without the need for positioning templates.
6. The size of the reserved hole must meet the requirements of civil construction and equipment installation.
The minimum size of the reserved hole A×A is 100×100 (mm). The bolt hook distance from the hole wall size e≥20mm, the hole wall from the foundation edge size b≥100mm, when b cannot meet 100mm, the pre-embedded method or the civil engineering professional can be used to strengthen the foundation. The bolt hook is 80mm from the bottom of the hole.
Hole depth (c) = anchor bolt embedded depth (L2) + B mm
7. For equipment installed on concrete beams, the anchor bolts are generally pre-embedded. If the equipment foundation has special requirements, the civil engineering profession can also pre-embed the casing on the concrete beam to penetrate the anchor bolts. The size of the casing should be such that the clearance between the anchor bolt and the casing is at least 10mm, so that the bolt position, sand filling and compaction can be adjusted during equipment installation. This method has longer bolts, good cushioning performance, and replaceable bolts, but the stability is poor.
8. For equipment installed on steel beams, the specifications and dimensions of the foundation bolts, nuts, and washers should be selected by the installation professional. For equipment installed on steel beams, the anchor bolts should penetrate the upper and lower edges of the section steel. When the steel beam is large and the equipment is small, it can also be fixed only on the upper edge of the section steel.
9. For large-scale compressors with greater vibration and impact, the equipment manufacturer generally provides recommended basic graphics and installation requirements for anchor bolts. The method of embedding the anchor bolts should be negotiated with the civil engineering professional.