Analysis and investigation of the degree of moment rigidity of steel beam-to-column connections

Date of Publication

2007

Document Type

Bachelor's Thesis

Degree Name

Bachelor of Science in Civil Engineering with Specialization in Structural Engineering

Subject Categories

Civil Engineering

College

Gokongwei College of Engineering

Department/Unit

Civil Engineering

Thesis Adviser

, Andres Winston C. Oreta

Defense Panel Member

Danilo C.Terante

Romeo A. Estanero

Abstract/Summary

In the conventional structural analysis of frames, it is assumed that beam-to-column connections behave perfectly rigid. However, this assumption fails to consider the actual behavior of beam-to-column connections. Knowing the actual rotational behavior of these connections and including the rotational spring stiffness in the model will allow for a more accurate analysis of frame structures.

The study investigated five types of steel beam-to-column connections. The rotational spring stiffness values of these connections were determined through laboratory testing. The rotational spring stiffness is a quantity that represents the rotational behavior of the connections.

The rotational spring stiffness values of the connections were used in the semi-rigid structural analysis using two types of spring models. Model 1 has rotational springs located at the intersections of beam and column, whereas model 2 has rotational springs located at the ends of the beam element. The test specimens were analyzed theoretically and their deflections were calculated. The theoretical deflections were compared with the experimental deflections and the results indicated that the semi-rigid structural analysis using spring model 2 predicts the actual deflection of the specimen during its linear elastic behavior. Therefore the study concluded that the rotational spring stiffness values obtained experimentally are accurate representations of the degree of moment rigidity of the connections.

Abstract Format

html

Language

English

Format

Print

Accession Number

TU14445

Shelf Location

Archives, The Learning Commons, 12F, Henry Sy Sr. Hall

Physical Description

xx, 156, [23] leaves : ill. (some col.) ; 28 cm.

Keywords

Concrete-filled tubes; Steel, Structural--Testing; Building, Iron and steel--Joints

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