Exploring Bentley STAAD.Pro V8i (SELECTseries 6)

Prof. Sham Tickoo

• Publisher: CADCIM Technologies
• Year: 2017
• ISBN:
  9781942689683
• Topic: Technology & Engineering
• Subtopic: Civil Engineering
• Index: Technology & Engineering

Exploring Bentley STAAD.Pro V8i (SELECTseries 6) is a comprehensive textbook that has been written to cater to the needs of the students and professionals. The chapters in this textbook are structured in a pedagogical sequence, which makes the learning process very simple and effective for both the novice as well as the advanced users of STAAD.Pro. In this textbook, the author explains in detail the procedure of creating 2D and 3D models, assigning material constants, assigning cross-section properties, assigning supports, defining different loads, performing analysis, viewing results, and preparing report. The chapters in the book are punctuated with tips and notes, wherever necessary, to make the concepts clear, thereby enabling the user to create his own innovative projects.

Following are the additional features of this book:

• Detailed explanation of Bentley STAAD.Pro concepts Projects given as examples
• Step-by-step examples to guide the users through the learning process
• Tips and Notes throughout the textbook
• 282 pages of illustrated text
• Self-Evaluation Tests and Review Questions

Brief Table of Contents
Chapter 1: Introduction to STAAD.Pro V8i
Chapter 2: Structural Modeling in STAAD.Pro
Chapter 3: Structural Modeling Using Tools
Chapter 4: Defining Material Constants and Section Properties
Chapter 5: Specifications and Supports
Chapter 6: Loads
Chapter 7: Performing Analysis, Viewing Results, and Preparing Report
Chapter 8: Structural Modeling Using Building Planner
Index

Chapter 6

Loads

Learning Objectives

After completing this chapter, you will be able to:

• Define and assign Primary Loads

• Define and generate Seismic Load

• Define and generate Wind Load

• Define and generate Snow Load

• Define and generate Vehicle Load

• Define Load Combinations

introduction

In structural engineering, loads can be classified into different categories: dead loads, live loads, environmental loads, combination loads, and other loads. Dead loads are the loads which remain constant over certain extent of time. It includes weight of the structure such as weight of walls, beams, columns, and so on. Live loads are the moving loads which act for a short duration, for example, a moving vehicle. Environmental loads are the loads which act due to weather and other natural phenomena such as wind, snow, earthquake, and so on. Combination loads are experienced when different types of loads act together. Other loads include support displacement loads, hydrostatic loads, and so on.

Once you model a structure in STAAD.Pro including its cross-sections, supports, and specifications, you can define and assign loads to the structural members. In STAAD.Pro, the above discussed categories are further classified into different groups. These groups are: Primary loads, Load Generation, Combination Loads, and Auto Load Combination, which are discussed next.

Primary Loads

In STAAD.Pro, primary loads include nodal loads

Figure 6-1 The Load & Definition window

and moment, uniformly distributed loads and moments, area loads, plate loads, wind loads, snow loads, and so on. To define any of the loads, you first need to create the load cases and the loads will be added in these load cases. To define a load case, choose the General tab and then go to the Load & Definition page; the Load & Definition window will be displayed in the Data Area, refer to Figure 6-1. Using the options in this dialog box, you can define different types of primary loads and assign them to the structure.

To create a load case, first select the Load Cases Details node in the list box, refer to Figure 6-1. Next, choose the Add button; the Add New : Load Cases dialog box will be displayed, as shown in Figure 6-2. In this dialog box, the Primary node will be highlighted in the left pane, and the Primary page will be displayed in the right pane of the dialog box. In the Primary page, specify the load case number in the Number edit box. Select the type of load such as dead, live, wind, and so on from the Loading Type drop-down list. You can also add load case title in the Title text box for your reference. Choose the Add button to add the load case and close the dialog box. You can see that the 1 : LOAD CASE 1 will be added to the list box of the Load & Definition window. Similarly, you can add more load cases for different loads.

Fi...

Table of contents

• CoverImage
• Front_matter-STAAD_ebook
• Introduction to STAAD.Pro V8i
• Structural Modeling in STAAD.Pro
• Structural Modeling Using Tools
• Defining Material Constants and Section Properties
• Specifications and Supports
• Loads
• Performing Analysis, Viewing Results, and Preparing Report
• Structural Modeling Using Building Planner