Analysis of mechanical anchor bolts Because the special inverted cone chemical anchor bolts are fixed with chemical adhesives, it takes a period of time to solidify, especially in the low temperature environment in winter, the solidification time will be longer, thus prolonging the construction period. However, the enlarged mechanical anchors at the bottom can be installed without waiting. Moreover, the construction time is independent of the temperature environment, so the construction cycle will be much faster.
Other special inverted tapered chemical anchors are fixed by chemical bonding, using the principle of mechanical locking keys to anchor and lock mechanical anchors with reamed bottoms, general special inverted tapered chemical anchors on the market use chemical adhesives, melting point It is relatively low and cannot be welded. The special inverted conical chemical anchor bolt can withstand high and low temperature and can be welded; More flexibility.
Special inverted cone chemical bolts have lower seismic performance than mechanical bolts with expanded bottoms. When encountering earthquake-like earthquakes or irregular loads, the anchoring force of the post-expanded mechanical anchor bolts with mechanical locking effect will not fail suddenly; when the seismic fortification strength is exceeded, it will provide people with the opportunity to escape and avoid secondary disasters . After a major earthquake, it can be repaired and continued to be used. Therefore, from the standpoint of seismic forces, mechanical anchors with enlarged rear bottoms are also preferred