Features - NIDA Technology

Three Core Modules

Pre-processing Modeling · Solving Computation · Post-processing Visualization

Intuitive Modeling Interface

NIDA provides a graphical pre-processing environment, supporting interactive definition of nodes, members, boundaries and loads. Users can quickly build complex structural models and efficiently manage member properties and sections through parametric methods.

Supports import and export of multiple data formats, facilitating coordination with mainstream design software and improving modeling efficiency.

Powerful Modeling Capabilities

Supports multiple element types such as beams, columns, plates and shells, and can simulate semi-rigid connections, plastic hinge springs and nonlinear boundary conditions. Practical factors such as member initial imperfections and residual stresses can all be incorporated into the model.

Flexible load case combinations and construction stage definitions truly reflect the stress state of the structure at different stages.

Rich Post-Processing

Graphical display of deformation, internal forces, stress distribution and plastic hinge development process, supporting load-displacement curve plotting and analysis process animation playback, intuitively presenting structural behavior.

One-click generation of analysis reports, facilitating engineering design delivery and result archiving.

NIDA Software Interface Overview

Rigorous Structural Mechanics Theory

NIDA's analysis capabilities are built upon mature engineering mechanics theories

Second-Order Analysis

Considers the effect of structural deformation on internal forces (P-Δ and P-δ effects), accurately reflecting the true stress state under geometric nonlinearity, and is the foundation of advanced analysis.

Effective Length Method

Automatically determines the effective length of members based on buckling analysis, replacing traditional empirical coefficient values, making stability design more accurate and reliable.

Load-Displacement Control

Uses the arc length method and load-displacement control (LDC) to trace the entire process of structural ultimate load-bearing capacity, capturing instability and collapse paths.

Construction Simulation

Activates members and applies loads step by step according to the true construction sequence, reproducing the loading history and deformation accumulation during the building process.

Plastic Hinge Analysis

Uses the plastic hinge spring model to simulate the rotation capacity of members after yielding, evaluating the seismic performance and load-bearing capacity reserve of structures.

Section Classification Factor

Determines member local buckling behavior based on section classification (SCF), distinguishing compact, non-compact and slender sections to match corresponding design methods.