This paper presents a new method and technique
for enhancing the behavior of sandwich panel bearing walls
under in-plane loads. The suggested technique is based on
presenting a complete interaction wall panel in the two directions,
by using fully interacting vertical and horizontal concrete ribs
along with the traditional two parallel concrete layers. Each wall
panel consists of light weight filling material blocks, two parallel
reinforced concrete layers and reinforced concrete ribs. The
longitudinal reinforcement of the ribs is slightly protruded outside
the wall panel to be used for assembling the reinforced concrete
walls and slabs in the building construction site. The filling
material blocks may be polystyrene-foam or any light weight filler
material having good thermal and sound insulation and allows for
concreting without crushing. In the present work, experimental
study and technical details of the suggested technique along with
those of the traditional sandwich panels are presented. The
experimental work is conducted on full scale specimens to verify
the applicability and efficiency of the proposed method. Results
indicated that the ultimate loads, failure modes, and load
deflection relationships of the proposed walls are greatly improved
by using the suggested technique.