Engineering and Technology Journal

An Experimental Study on the Shear Strength of High-performance Reinforced Concrete Deep Beams without Stirrups

Sinan Abdulhkaleq Yaseen

Volume 34, 11A , November 2016, , Page 2123-2139

https://doi.org/10.30684/etj.34.11A.17

Abstract

High-performance fiber-reinforced concrete is a new class of concrete that has been developed in recent decades. It exhibits enhanced properties such as high compressive strength and ... Read More ...

Behavior of High-Rise Steel Building With The Inclusion of Warping

Najlaa H. Shareef; Haitham H.Muteb; Hisham M. AL-Hassani

Volume 28, Issue 22 , November 2010, , Page 6580-6601

https://doi.org/10.30684/etj.28.22.10

Abstract

The mathematical procedure in this study covers the calculation of sectorialproperties of the equivalent cross-sectional storey for high-rise building frames. Theformulation is efficiently ... Read More ... The mathematical procedure in this study covers the calculation of sectorialproperties of the equivalent cross-sectional storey for high-rise building frames. Theformulation is efficiently used to obtain the free vibration analysis of high-risebuildings which are constructed from several columns, beams, shear walls andbracing etc. the analysis is based on transformation the complex system to a simpletall column to represent a cantilevered tall building structure. This is partitioned tonodes one of which indicates a storey with equivalent cross-sectional properties forall storeys' elements after calculation of these properties with respect to the shearcenter of high-rise building. A thin walled bar finite element with seven degrees offreedom at each node is assumed. A new formulation of the stiffness and consistentmass matrices of the thin- walled element is presented in this study. The effect ofcross sectional warping and its properties on the flexural, torsional and axialproperties was investigated, using discrete element approach in idealizing thestructure in high rise building. For the purpose of the present study, it is assumedthat the cross-sectional types under condition are only of thin-walled sections.Algorithm method was developed which covers the calculation of sectorialproperties of the cross section for floor plan in high-rise building, to study the shareof columns for lateral shear force resistance, and investigate the behavior of differenttypes of high-rise building with inclusion of warping restraint. The effect of naturalfrequency with height of tall buildings, and the mode shape for different crosssectionalplans of high-rise building was studied. To check the efficiency andaccuracy, the mathematical procedure is demonstrated for static and dynamicexamples by comparing the results with those obtained by using software ANSYSprogram. A difference of 15% is shown. An eigen value problem is analyzed andnumerical examples are discussed.

Shear Capacity of High-Strength Fiber Reinforced Concrete Beam-Column Joints

Kaiss Sarsam; Zaid Muhammad Kani Al-Azzawi

Volume 28, Issue 6 , March 2010, , Page 1253-1266

https://doi.org/10.30684/etj.28.6.17

Abstract

This work examines the work of 13 high-strength concrete (HSC) beamcolumnjoints (BCJ)-with and without steel fibers. Several shear design methods(with modification for fiber content, ... Read More ...

Bond Strength-Splice Length in Concrete Beams Confined by Transverse Reinforcement

Sameh Badry Tobeia Shuker

Volume 28, Issue 2 , January 2010, , Page 322-339

https://doi.org/10.30684/etj.28.2.11

Abstract

This work aim to study the effect of transverse reinforcement , area of splicebar, concrete cover thickness , rib area and the increasing in concrete strength (highstrengthconcrete) ... Read More ...

Keywords = high

An Experimental Study on the Shear Strength of High-performance Reinforced Concrete Deep Beams without Stirrups

Abstract

Behavior of High-Rise Steel Building With The Inclusion of Warping

Abstract

Shear Capacity of High-Strength Fiber Reinforced Concrete Beam-Column Joints

Abstract

Bond Strength-Splice Length in Concrete Beams Confined by Transverse Reinforcement

Abstract