Overview of StrucPy

StrucPy is a powerful python library for structural analysis. StrucPy is originally developed for the students and researchers working in field of civil engineering. It will be highly helpful for structural analysis, structural design, design optimization, visualizing the structural behavior, learning, application of machine learning in structural analysis, etc. The uniqueness of StrucPy is that it gives full control to the user over the model. Apart from the result, user can always access and make change to the input arguments. Further user will have access to the data’s generated during the analysis. Result are presented in apprehensible tabular form which can be exported.

Usually the model input can vary from 1 to 1000’s members depending upon the complexity of the structure. StrucPy provides a simple method for input in form of Dataframe, capable of taking any number of input which can be easily be cross-checked and processed. StrucPy make handling structural complexity easier.

Why Dataframe? Dataframe has been chosen for the simplicity and usability. Generally some formats such as .csv, .xls, .xlsx etc. are very common and easy to handle structural model details. Dataframe’s can be imported from these formats, reducing the coding work load.

Modules

  • RCFA - Structural analysis module for Reinforced Concrete Framed Structures

  • RCFooting (Under Development)

Project Objectives

Objective of StrucPy is to provide an easy to use open-source library for the upliftment of civil/structural engineering students, faculties and researchers without depending upon commercial licenses.

User Friendly: StrucPy provides a user-friendly approach for the analysis of structure without the use of extensive coding. Its powerful methods perform almost every function required before and after analysis. It reduces the user loads by allowing to pass input arguments through Excel formats.

Platform for Design Optimization: StrucPy gives full access to pre- and post-analysis data of the structure. User can use those data’s as per their requirement and research. Thus eliminates lack of control over data exchange and dependency on commercial software to perform analysis.

Validity: StrucPy are continuously monitored to remove any bugs and errors. The output of StrucPy is verified with the commercial software’s like Bentley’s STAAD PRO connect edition. Users are requested to report any issue/error encountered while using StrucPy.

Improvement: StrucPy intents to provide accurate open source solution to every aspect of structural analysis. The codes are often checked for improvements and scope.

Dependencies

Required Dependencies

  • numpy: used for matrix manipulation and as dense matrix solver

  • pandas: used for taking input and presenting output

  • plotly: used for visualization and plotting

  • ray: used for fast processing

  • openpyxl: To read Excel files

StrucPy Coordinate System

Follow right-hand rule for coordinate system, the right thumb points along the z-axis in the positive direction and the curling motion of the fingers of the right hand represents a motion from the first or x-axis to the second or y-axis.

Gravity loads acting along y-axis.

_images/CordSys.JPG

RCFA

RCFA provides solution to structural analysis of 2D and 3D Reinforced Concrete Members/ Frames(RCF). This module utilizes stiffness matrix approach to attain the solution. It covers every node’s (joints), beam members and column members complete detail.

Current Capabilities of RCFA

  • 2D and 3D static analysis of elastic reinforced concrete frame (RCF) structures.

  • Considers self-weight, dead load, live loads, static seismic loads on the structure.

  • Capable of transferring (Rectangular and Square) floor load to beams.

  • Capable to evaluating the effective length of column members.

  • Capable of handling sway frames.

  • Gives accessibility to local and global stiffness matrix.

  • Produces reactions and joint deflections’ data.

  • Produces the 3D view of input RC model.

  • Produces the deflected shape of RCF model.

  • Gives accessibility to data of shear forces, bending moments, and deflection of every member.

  • Produces the diagrams of shear forces, bending moments, and deflection of every member.

  • Allows the passing of load combinations.

  • Provides envelop result of all load combinations.

Under Development Capabilities of RCFA

  • P-delta analysis of structure.

  • Inclusion of Wind Loads as per IS 875 part 3.

  • Dynamic Seismic Analysis

License

[GNU LGPLv2.1] ((https://www.gnu.org/licenses/old-licenses/lgpl-2.1.en.html))