pt slab design example

teddystukes14216 July 03, 2022 design , example , slab , wallpaper Comment

Cover with regard to bond C bond 10 mm Min. Cover with regard to fire C.

We have thickness of slab as 130 mm.

. In band beams 30m run approx. Design the podium slab for the following superimposed loads DL 165 psf 790 kNm2 LL 128. If the use of flat plate is not adequate the use of a slab system with slab bands will be investigated.

Post-tensioned PT concrete floors are now widely used in the UK particularly for high-rise buildings. Load balancing is used a portion of the load on slab is balanced by the transverse forces imposed by the draped tendons in each direction. However main reinforcement bar and distribution bar in transverse direction.

Ignoring restraint to shortening effects. For normal slab load and initial span we can take spandepth 42 10000 240mm 42 Punching shear affected by size of column and slab thickness. Use ACI Table 95a.

PT-Slab On Ground example. Assume 130 psf 622 kNm2 For the balcony. For normal slab load and initial span we can take spandepth 42 10000 240mm 42 Punching shear affected by size of column and slab thickness.

Encapsulated PT systems should be specified on all PT buildings with possible exception of slab on ground construction. This example will examine two-way floors with slab bands systems. CE 433 Summer 2013 Slab Design Example 1 5 Design a oneway slab for an interior bay of a multistory office building using the information specified below.

This is the source of most problems with new designs both aesthetic and structural. Continuous one way slab DURABILITY FIRE BOND REQUIREMENTS Min. Hyperstatic Moments from Post-Tensioning.

Self weight 60 KNm2. For post-tensioned concrete design the user can specify the prestressing load PT by providing the tendon profile. Cutting a post tension slab Verified 7 days ago.

RAPT is a very powerful program for reinforced and pre-stressed concrete design of structural systems and the aim of this course is to teach you how to use this software in order to quickly design and analyse a prestressed concrete slab. Computation and Verification 19 Mar 2020 P46. Second step in slab design is to determine the amount and distribution of prestress.

Longer spans can be achieved due to prestress which can also be used to counteract deflections. Post-tensioned slabs-on-ground provide a cost-efficient high-performance solution for problems associated with ground-supported residential foundations on shrink-swell soils. Assume partitions cannot be damaged by deflections.

Double live ends can be used on longer PT runs. The default load combinations for post-tensioning are defined in the following sections. A more detailed guide to the design of PT floors can be found in The Concrete Societys Technical Report 43 TR43.

Determination of Moments of slabs Laterally. Under the balanced load the slab remains plane without curvature and is subjected only to the resultant. This is now mandated by ACI and we believe it to be good practice.

This will be a preliminary design that we do in the office in order to calculate the slab thickness and required reinforcement. In slabs 40m run approx. Cover with regard to durability C mindur 15 mm Min.

130-15-102 110 mm. However to reduce shear reinforcement requirement a depth of 250 mm is chosen. Structural Design of Column-Supported Concrete Floors 19 Mar 2020 P45.

150mm min horizontal 100mm min vertical. This article provides information on how to scheme a PT slab and how the use of post-tensioning affects the rest of the structure. Podium Slab Design Example P17 Post-Tensioned Bridges 19 Mar 2020 B1.

Live Load 2 kNm 2 Self-weight of the slab 325 kNm 2 Floor Finish 1 kNm 2 Total 625 kNm 2. However to reduce shear reinforcement requirement a depth of 250 mm is chosen. Minimum set out dimensions.

Stay tuned for full course. The compressive stresses resist the anticipated tension stresses induced by the soil movements enhancing the performance over a non-prestressed foundation. When a slab is supported on all four sides and the ratio of long span to short span is equal or greater than two it will be considered as one way slab.

Design of Slab Examples and Tutorials by Sharifah Maszura Syed Mohsin Example 2. In distribution or slabs of ground 50m run approx. Course Study on Post Tension Slab Design.

The use of flat plate system will be checked first. Post-tensioned PT slabs are typically flat slabs band beam and slabs or ribbed slabs. CE 433 Fall 2006 Slab Design Example 2 6 1 Slab Thickness t.

Stiff vertical elements in the structure such as. 121 Initial Service LoadCombination The following load combination is used for checking the requirements at trans-. Between Dia 127 mono-strand tendons.

Design of PostTensioning Building Structures March 12 2020 2020 EduCode Las Vegas PTI 4 PRETENSIONING 1Tension Strands 2Cast Concrete Bond strands to concrete 3Cut Strands Transfer force to concrete POSTTENSIONING 1Cast Concrete with Duct 2Feed Strands through Duct 3Tension Strands 4Grout Duct or other corrosion protection Section. Self weight 60 KNm2 Total dead load 40 60 100 KNm2 Total live load 30 KNm2 Balanced load. Precast Prestressed Spliced and Post-Tensioned Bridge Design B103 19 Mar 2020.

Hmin L 28 L distance from center of support to center of support beam spacing 16 ft hmin 16 x 12 28 6857 use h 70 2 Design Flexure Reinforcement at each Section. To get the excel sheet join as loving fansub member to this channel. Round slab thickness up to.

The analysis is performed on design strips perpendicular to the slab bands Transverse Bands. Required axis distance for R90 fire resistance a 30 mm Min. Pt Slab Design Example.

Content uploaded by Magdy. 700k research projects. Slab selfweight 95 15012 118 assume 120 psf 575 kNm2 LL 60 psf 287 kNm2 S32 Lateral.

The load on the slab is carried by the short span in one direction. Longer span lShorter span b 2. Design of typical Floor Slab.

Sample of an engineering pt slab drawing a sample of a post tensioned slab reinforcement plan download this sample autocad 2000 format 68kb definitions. Considering M20 grade of concrete and Fe 500 steel of diameter of 10 mm Effective Depth. Framing dead load selfweight superrimposed dead load 25 psf partitions me misc.

Pt slabs offer the. PT slabs offer the thinnest slab type as concrete is worked to its strengths mostly being kept in compression. Discover the worlds research.

Post-Tensioning Slab Procedure Placement of Bottom Reinforcement Mesh Placing Flat Duct along with Strands in both Directions Concreting After 3 Days Transferring 25 of Total Prestress Force to avoid Shrinkage and Temperature Cracks Transferring remaining 75 of Prestress Grouting of Duct Two Way Slab with Bonded PT.

Post Tensioned Concrete Slab