Bond coefficient

For the cross-section analysis, different bond properties must be considered by using the bond coefficients k = 0.7 and Kt = 0.9 for the internal reinforcement steel bars and the externally bonded strips, respectively. For compatibility relationships in the cross-section analysis, the mean values of the strains, s, in the internal steel reinforcement and ft in the EBFR can be used however, for the equilibrium relationships, the maximum values of the strains for the internal reinforcement steel bars and the externally bonded strips. 

A summary of derived relationships for the present theory is shown in Table 1. When the extent of interaction (b) equals one, the Good s bonding coefficient ( cj)) also... 

The bond coefficient between the reinforcing material and soil may be generally defined as ... 

Bond coefficient = resistance between soil and reinforcement resistance between soil and soil. 

Consider the case of a grid structure. This can be a woven or knitted grid, or one made from welded straps. The expression for the bond coefficient may be written as °... 

The significance of the bond coefficient for geotextiles in reinforcement applications is that the higher the the shorter the required bond length, and comparisons have been pubhshed for various textiles including woven flat-slit tape and multifilament, heavy needle-punched non-wovens, and geogrids. ... 

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