The invention discloses an autoclaved aerated block
lintel and a construction method thereof. The construction method comprises the steps that first pre-buried components are arranged on vertical main structures on the two sides of a
lintel; second pre-buried components are arranged at the bottom of a horizontal main structure on the top of the
lintel; a lintel bottom bracing is fixedly mounted between the first pre-buried components arranged on the vertical main structures on the two sides of the lintel; lintel vertical bracings are fixedly mounted between the second pre-buried components and the lintel bottom bracing; the outer side of the lintel bottom bracing and the outer sides of the lintel vertical bracings are cladded by an autoclaved aerated masonry shell to form lintel bottom bracing
casting space and lintel vertical bracing
casting space which internally communicate with each other; concrete
casting is conducted in the lintel bottom bracing casting space and the lintel vertical bracing casting space to form a lintel combination bracing; and autoclaved aerated blocks are constructed on the lintel combination bracing, and lintel construction is completed. The autoclaved aerated block lintel and the construction method thereof are applied to the construction method of an autoclaved aerated block large-span hole lintel, and have the characteristics of convenient construction and little size deviation compared with a traditional cast-in-place concrete lintel, formwork erection is omitted, and the appearance quality is improved.