Efficiency of concrete diagrid compared to concrete framed tube as lateral load resisting system

الملخص EN

One of the most recent innovations of high-rise tabular structural system is diagrid structure.

Diagrid structural system has been widely applied to high-rise buildings at the last two decades.

Diagrid system is predominating other types of tabular structural systems because of its structural efficiency and aesthetic potential.

To examine the efficiency of diagrid system as lateral load resisting system, a comparative study on the behavior of diagrid system with framed tube system, has been conducted under earthquake action.

Three-dimensional finite element models for a reinforced concrete diagrid building and a concrete framed tube building of 36 stories with similar plan configuration and characteristics were performed.

The only variation between the two systems is the exterior lateral load resisting scheme.

Dynamic response spectrum analysis was utilized to investigate the dynamic behavior for both diagrid and the framed tube system.

Findings which include modal results, lateral story displacements, story drifts, story shears and story moments were presented and discussed.

The results revealed that diagrid system is more effective as lateral load resisting structure than the framed tube system with a reduction of 21 % of the consumed materials