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ITS » Paper and Presentation » Teknik Struktur S2
Posted by tondoindra@gmail.com at 14/11/2014 23:40:18  •  1103 Views


PERILAKU GESER KOLOM BETON BERTULANG MENGGUNAKAN BETON MUTU TINGGI DAN TULANGAN MUTU TINGGI DENGAN BEBAN AKSIAL TINGGI

SHEAR BEHAVIOR OF REINFORCED CONCRETE COLUMS WITH HIGH STRENGTH STEEL AND CONCRETE UNDER HIGH AXIAL LOAD

Author :
PRASETYA, DWI ( 3111202008 )




ABSTRAK

Delapan kolom telah diuji dengan beban aksial tekan dan beban bolak-balik. Seluruh benda uji didesain gagal geser menggunakan beton mutu tinggi dan besi mutu tinggi sebagai tulangannya. Parameter dari percobaan ini adalah kuat tekan beton 70 MPa dan 100 MPa jarak sengkang rasio sengkang 10506011051626 1051980 0.14 10506011051626 1051980 0.25 dan rasio beban aksial 30 - 40 10504341051606 1053169 8729 10504031051610 . Delapan benda uji dari penelitian sebelumnya disertakan untuk menginvestigasi kapasitas geser dari beton mutu tinggi dengan efek beban aksial tekan. ACI 08-318 mengadopsi sudut retak kritis 451051501 didalam perhitungan yang menghasilkan konservatif estimasi. AASHTO LRFD 2007 mempertimbangan efek beban aksian untuk memprediksi sudut retak sehingga cukup konservatif untuk memprediksi sudut geser. Hasil pengujian dibandingkan dengan kuat geser ultimit dan kuat geser beton yang diprediksi oleh beberapa peraturan. Hasil pengujian menunjukkan bahwa kuat kolom maksimum terjadi lebih dahulu sebelum leleh pada sengkang. Tegangan aksial tekan mempengaruhi kuat geser beton pada tegangan aksial tekan rendah dan efeknya tidak terlihat jelas pada tegangan aksial tekan tinggi.


ABSTRACT

Eight columns were tested under axial compression load and cyclic loading. All specimens were designed for shear failure using high strength concrete and high strength steel as its reinforcement. The parameters of these columns were compressive strength of concrete 70 MPa and 100 MPa transverse reinforcement spacing hoop ratio 10506011051626 1051980 0.14 10506011051626 1051980 0.25 and axial load ratio 30 - 40 10504341051606 1053169 8729 10504031051610 . Eight specimens from previous studies were included to investigate the shear capacities of high-strength concrete columns under axial compression load effect. ACI 08-318 adopt 451051501 of the critical crack angle in its calculation makes the conservative estimation. AASHTO LRFD 2007 considers the axial load effect to predict the crack angle and perform conservative enough to predict the crack angle. The test results compared with the ultimate shear strength and concrete shear strength predict by several codes. The test results show that the maximum strength of columns appears before the yielding of stirrups. The axial compression stress affect the concrete shear stress in low axial compressive stress and the effect was not clear in high axial compressive stress.



Keywordscolumn; high strength concrete; high strength steel; cyclic loading; axial compressive load; concrete shear strength.
 
Subject:  Konstruksi beton bertulang
Contributor
  1. Prof. YU-CHEN OU
  2. Prof. Ir. PRIYO SUPROBO, MS., Ph.D.
Date Create: 28/06/2013
Type: Text
Format: PDF
Language: Indonesian
Identifier: ITS-paper-31021140005826
Collection ID: 31021140005826
Call Number: RTS 624.183 41 Pra p


Source
Paper And Presentation of Civil Engineering RTS 624.183 41 Pra p, 2014

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