Study and Analysis of Post Tension Flat Slab for Different Tendon Layouts

Arshad A. Pathan

doi:10.22214/ijraset.2021.37428

Study and Analysis of Post Tension Flat Slab for Different Tendon Layouts

International Journal for Research in Applied Science and Engineering Technology ◽

10.22214/ijraset.2021.37428 ◽

2021 ◽

Vol 9 (VIII) ◽

pp. 512-517

Author(s):

Arshad A. Pathan

Keyword(s):

Main Direction ◽

Flat Slab ◽

Stress Diagram ◽

Post Tension

The main purpose of this paper is to study of post tension flat slab and study of their various tendon profiles. In this paper the analysis of various different tendon layouts with different sizes is done. In this paper different sizes of slab is considered and analysis is done with the help of SAFE software. With help of analysis we know the deflection of PT slab for different layouts. In this paper tendon layouts are as banded tendons in main direction, banded tendons in both directions, distributed tendons in both directions, banded and distributed tendons in both directions are considered with different sizes. This paper also includes PT strip stress diagram and layouts.

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KAJIAN EFISIENSI SISTEM FLAT SLAB DENGAN METODE POST-TENSION DAN KONVENSIONAL

JMTS: Jurnal Mitra Teknik Sipil ◽

10.24912/jmts.v2i1.3418 ◽

2019 ◽

Vol 2 (1) ◽

pp. 133

Author(s):

Anthones Primakov ◽

Edison Leo

Keyword(s):

Flat Slab ◽

Post Tension

Skripsi ini menganalisis tentang perbandingan efisiensi antara sistem flat slab dengan metode post tension dan metode konvensional. Flat slab adalah pelat dengan tumpuan kolom tanpa terdapat balok pada setiap sisi yang pada analisisnya terdapat hal yang perlu diperhatikan, yakni batasan gaya geser pons pada kolom dan lendutan yang terjadi pada pelat. Batasan tersebut mempengaruhi ketebalan atau penambahan pada pelat, sehingga diperlukan analisis untuk berbagai bentang pelat pada kedua metode dengan mencari tebal minimum pelat. Bilamana pelat yang ditinjau tidak memenuhi persyaratan lendutan ataupun gaya geser, diperlukan penambahan pada pelat berupa drop panel pada analisis flat slab baik dengan metode konvensional maupun post-tension. Analisis ditujukan untuk mendapatkan lendutan, gaya geser serta gaya luar lainnya yang terjadi pada pelat sehingga didapatkan perbedaan jumlah tulangan dan volume material yang digunakan dalam perencanaan pelat dengan metode konvensional dan post-tension. Dengan proses analisis mengacu pada proses perhitungan manual, dilakukan pengecekan gaya-gaya dan lendutan yang terjadi akibat pelat dengan menggunakan program ETABS 2016. Kemudian dari hasil analisis program ETABS 2016, dihitung jumlah tulangan dan efisiensi antara metode post-tension dan konvensional. Adapun proses dalam flat slab dengan metode post-tension dengan menghitung jumlah tendon dan losses pada kondisi transfer dan service yang diperlukan yang akan dimasukkan kedalam program ETABS 2016, sehingga didapat hasil analisis yang akurat.

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RESEARCH OF INFLUENCE CURVILINEAR POST-TENSION REINFORCEMENT WITHOUT ADHESION TO CONCRETE ON SHEAR RESISTANCE

Building constructions. Theory and Practice ◽

10.32347/2522-4182.2.2018.179-184 ◽

2018 ◽

Vol 0 (2) ◽

pp. 179-184

Author(s):

J Klymov

Keyword(s):

Shear Resistance ◽

Post Tension

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Load Testing to Collapse Limit State of Barr Creek Bridge

Transportation Research Record Journal of the Transportation Research Board ◽

10.3141/1696-49 ◽

2000 ◽

Vol 1696 (1) ◽

pp. 92-102 ◽

Cited By ~ 10

Author(s):

Nicholas Haritos ◽

Anil Hira ◽

Priyan Mendis ◽

Rob Heywood ◽

Armando Giufre

Keyword(s):

Finite Element ◽

Failure Modes ◽

Flexural Rigidity ◽

Load Capacity ◽

Limit State ◽

Dynamic Test ◽

Service Condition ◽

Flat Slab ◽

Testing Program ◽

Static Testing

VicRoads, the road authority for the state of Victoria, Australia, has been undertaking extensive research into the load capacity and performance of cast-in-place reinforced concrete flat slab bridges. One of the key objectives of this research is the development of analytical tools that can be used to better determine the performance of these bridges under loadings to the elastic limit and subsequently to failure. The 59-year-old Barr Creek Bridge, a flat slab bridge of four short continuous spans over column piers, was made available to VicRoads in aid of this research. The static testing program executed on this bridge was therefore aimed at providing a comprehensive set of measurements of its response to serviceability level loadings and beyond. This test program was preceded by the performance of a dynamic test (a simplified experimental modal analysis using vehicular excitation) to establish basic structural properties of the bridge (effective flexural rigidity, EI) and the influence of the abutment supports from identification of its dynamic modal characteristics. The dynamic test results enabled a reliably tuned finite element model of the bridge in its in-service condition to be produced for use in conjunction with the static testing program. The results of the static testing program compared well with finite element modeling predictions in both the elastic range (serviceability loadings) and the nonlinear range (load levels taken to incipient collapse). Observed collapse failure modes and corresponding collapse load levels were also found to be predicted well using yield line theory.

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