Research On Structural Systems Having Function Of Anti-earthquake For Buildings Constituted With Concrete Small-sized Hollow Blocks

Analysis and summary of structural systems for buildings constituted with concrete small-sized hollow blocks are given in this paper, and research on structural systems for the combination of RC shear-wall with block wall is made too.At first, the present conditions and developing perspectives of buildings constituted with concrete small-sized hollow block in our country is introduced. Through investigation for our country's policy, land resource, population conditions, national economic development and building industry development, we get conclusion that concrete small-sized hollow block building with advantages of saving on land and energy as well as utilizing of wastes shall have broadly developing perspectives. Through the analysis of structural systems for buildings constituted with concrete small-sized hollow blocks, the application range of the hollow blocks can be enlarged to a great extent, so to promote the reforming process for our country's wall materials.Then analysis of various structural systems constituted with concrete small-sized hollow block is conducted, as well as their mechanics features respectively, rupture mechanism requirements for constitution, sphere in application are appointed out accordingly. Compare with non-reinforced block walls, the block wall structures kept within bounds, reinforced block wall structures as well as the structures having combination of RC with block walls have increased in ductility, entirety and ability to collapse resistance as wall as might be able to construct multi-high rising house. A further analysis of the structural systems having combination of RC shear-wall with block wall is worked out, calculation of seismic action is performed, a formula for computation of principle of work in coordination between RC shear-wall with block wall is put forward, and the program for computation source is given.At last, through several practical engineering examples, the application of structuralsystem having combination of RC shear-wall and block wall in big room-width as big room-length is analyzed, a proof is conducted for the selection of structural systems, the horizontal seismic action is calculated and the measures for constitution is introduced. Through the principle of work in coordination with the anti-earthquake actions of RC seismic wall and block masonry are analyzed, it has been worked out that the first RC shear-wall can absorb much earthquake shear in the combination of RC shear-wall and block wall. Through the contrast-analysis of stages in elasticity and plasticity, the function of RC shear-wall is discussed. As the rigidity of RC shear-wall vary with its height, it has also been made out that the distribution of seismic action in block wall is more reasonable.