According to some problems existed in current Chinese codes for design of seismic shear strength of concrete hollow block masonry

the curve of shear strength of concrete hollow block masonry under shear-compression loading

including descent segment

was presented by theory of failure region and test results of 58 concrete block masonry walls under shear-compression loading. And the design seismic shear strength formula of concrete hollow block masonry

which has reliability guarantee

was deduced. Compared with current Chinese codes

the design seismic shear strength formula of concrete hollow block masonry not only can perfectly simulate the shear-friction

shear-compression and diagonal compression failure modes

but also avoid unreasonable and unsafe calculation of seismic shear strength of concrete hollow block masonry

which can be applied to design of tall reinforced concrete masonry structures.