Application and theoretical research of embedding angle iron method about opening hole in masonry structure

Angle iron is embedded in the level lime gap which is in the wall upon the hole to be opened. They work together with the upper wall well and upper load is borne effectively. Arching principle of wrapping angle iron method is carried out firstly and then its advantage is obtained by comparing the other different reinforcement -rehabilitation methods. Construction plan of wrapping angle iron method is presented at last. The method has been applied in a true project and designer can reference the method for similar project.