BENDING MOMENT ANALYSIS Of UNDERGROUND DIAPHRAGM WALL CONSIDERING THE LIMIT VALUE OF CRACK RESISTANCE DESIGN

摘要

Based on the crack control design theory and the crack control limit value, an equation to calculate concrete diaphragm wall's bending moment is deduced. Combined with the engineering example of some subway station, the discussion about the effect on relationship between the reinforcement ratio and the limit bending moment and the load short term effect bending moment of underground diaphragm wall is made detailedly under different limit value of crack resistance design, the conclusion of crack control requirement and ultimate bearing capacity requirement can be made if we design the underground diaphragm wall according to the crack control design theory.