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Strut and Tie Modeling in Reinforced Concrete Structures--Basic and Applications
reference: (PDF) Strut-and-Tie-Modeling in Reinforced Concrete Structures Basics and Applications
Adisorn O.
Jun 21 min read
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🔥 Firefly Algorithm (FA) – Overview
Inspired by: Â Bioluminescent communication of fireflies. Inventor: Â Xin-She Yang (2008). Core Idea: Each firefly is attracted to brighter...
Adisorn O.
Aug 32 min read
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JAYA Algorithm (Rao, 2006): Overview
The Jaya algorithm , proposed by Prof. R. Venkata Rao (2006), is a simple, yet effective population-based optimization algorithm . The...
Adisorn O.
Aug 12 min read
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T-Beam Ductility Check (Non-Iterative Method)
alpsdev 1. Objective To verify ductility compliance of a prestressed T-beam section per ACI 318-19 Section 21.2.2, by checking if the...
Adisorn O.
Jun 133 min read
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3D Frame Transformation with Section Roll Example (Simplified)
This document explains the step-by-step procedure to compute the transformation matrix for a 3D frame element that includes a section...
Adisorn O.
Jun 72 min read
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STM Example: Reinforced Concrete Corbel
Here we show the real example of reinforced concrete corbel to carry a total load of 900 kN, i.e. 4 points of 225 kN. The STM model is...
Adisorn O.
Jun 22 min read
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Understanding Plastic Collapse: Lower Bound vs. Upper Bound Theorems
1. Introduction Plastic analysis provides a powerful tool for estimating the collapse load of structures by using either the lower bound...
Adisorn O.
Jun 12 min read
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Flexural Design of Beam with Compression Rebar : ACI 318-19
% Beam parameters fc = 30; % MPa fy = 500; % MPa Es = 200000; % MPa b = 300; % mm d = 550; % mm dp = 50; % mm Mu = 400e6; % N.mm phi =...
Adisorn O.
May 242 min read
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Why and When to Use Two-Stage Seismic Analysis in Tall Building Design
In modern seismic design, especially for tall buildings with podiums, engineers often face a fundamental modeling dilemma: Should we...
Adisorn O.
May 173 min read
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What Universities Don't Teach: The Art of Structural Engineering Judgment
In the world of structural engineering, everyone learns the code. Everyone models the structure. Everyone checks PMM ratios, rebar...
Adisorn O.
May 172 min read
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Design of Gravity Frame (Non-Participating Frame) : Summarized from Prof. Moehle's Book
Background Based on the excerpts from "Seismic Design of Reinforced Concrete Buildings" by Jack Moehle, we can certainly discuss gravity...
Adisorn O.
May 156 min read
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What is Behind ETABS's Simplified C- T- Shear wall Design
Ref. ETABS's SWD ACI318-99 Manual Based on the Shear Wall Design Manual (ACI 318-19) , the Simplified C- and T-section shear wall design...
Adisorn O.
May 143 min read
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Why 'Geometric Stiffness' Is a Misnomer
In the field of nonlinear structural analysis, the term 'geometric stiffness' has long been used to describe the additional terms that...
Adisorn O.
May 122 min read
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Geometric Nonlinear Truss using Updated Lagrangian (UL) – MATLAB Implementation
Inclined 2-Bar Truss with Geometric Nonlinearity and Transformation Matrix This example models a 2-bar inclined truss using the Updated...
Adisorn O.
May 124 min read
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Phase 1 Workbook: Nonlinear Truss Element using Newton-Raphson (with MATLAB)
This workbook builds a nonlinear axial truss model using the Newton-Raphson method and a bilinear elastic-plastic material model. It...
Adisorn O.
May 122 min read
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Two-Stage Seismic Analysis for Tall Buildings with Podium or Basement
In the seismic design of tall buildings with podiums or basements, the structure typically consists of a flexible tower built over a...
Adisorn O.
May 123 min read
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Topographic Factor (Ct) in NBCC 2015/2020
In the National Building Code of Canada (NBCC) 2015 and 2020, the topographic factor (denoted as Ct) adjusts wind pressure to account for...
Adisorn O.
May 122 min read
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Comparison of Wind Load Design: ASCE 7-16 vs NBCC 2015/2020
Wind load design is a critical aspect of structural engineering, especially for buildings in urban environments where wind effects can...
Adisorn O.
May 123 min read
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