📘 ❞ Flat Slab ❝ كتاب

الهندسة المدنية - 📖 كتاب ❞ Flat Slab ❝ 📖

█ _ 0 حصريا كتاب ❞ Flat Slab ❝ 2024 Slab: تأليف : الدكتور ياسر الليثى To utilize the slab thickness to optimum level, essential aspects that should be kept in mind are: Procedure related design Presence or absence of holes Significance deflections Previous layout application experience Types Construction Following are types flab construction: Simple flat slab Flat with drop panels Flat column heads Flat both panels and heads Uses Column Heads It increase shear strength slab It reduce moment by reducing clear effective span Uses Drop Panels It negative capacity stiffen hence deflection Advantages Slabs It is recognized Slabs without can built at a very fast pace as framework structure simplified diminished Also, speedy turn around achieved using an arrangement early striking flying systems Flat construction deeply floor –floor height especially false ceiling does act limiting factor on placement horizontal services partitions This prove gainful case lower building height, decreased cladding expense pre fabricated In client plans changes interior wants use accommodation suit need, perfect choice it offers flexibility owner possible due square lattice beam makes channelling allocation difficult Thickness slab Thickness another attractive benefit because thin provides advantage increased cost for However, there profound limit extra reinforcements needed tackle design issues Besides this, added margin must provided facilitate architectural alterations later stages Types Design Multitudes process methods involved designing slabs evaluating these flexures Some following: The empirical method The sub frame yield line method Finite –element analysis For smaller frames, used but method more irregular frames The designs conceptualized employing appropriate software fact complicated expensive The most homogenous installation applying A thorough visualization terms complete examination separate cracking deflection required since this procedure utilises only collapse mechanism Structures having floors supports, large openings bears heavy loads, finite element analysis supposed advantageous Great thought put into choosing material properties installing loads structures Deflections cracked width also calculated Finite Areas That Require Attention Design Slab 1 Usually center each panel deflections maximum Foreseeing tricky will engage some form elastic appraisal While during implementation method, one way evaluate mid least two parallel strips 2 Proprietary punching sheer reinforcement In indispensable 3 Optimization Main certain procedures, output better optimized than other Benefits Using Construction Method Flexibility room layout Saving height Shorter time Ease M&E services Use prefabricated welded mesh Buildable score الهندسة المدنية مجاناً PDF اونلاين قسم خاص بكتب للتحميل مجال وهي أحد فروع والمعنية بدراسة وتصميم وتحليل المنشآت المختلفة كالأبنية السكنية والخدمية والطرق والجسور والأنفاق والمطارات والموانئ وشبكات إمداد مياه الشرب ومحطات ضخ المياه الصرف الصحي التنقية ومعالجة والسدود وكذلك مشاريع الري والإشراف عمل هذا أثناء فترة استمرارها لذا لا يجوز حصر العلم بأنه المعني بالتصميم وحده فقط وهي كأي علم تتطور باستمرار ودون توقف وفي الآونة الحديثة ترابطت مع التطور الصناعي بشكل كبير لإنتاج مواد إنشائية جديدة ومتطورة تفي بالمتطلبات التي تكون دائما متزايدة من المجتمع A special section books civil engineering branches concerned studying, analyzing various installations such residential service buildings, roads, bridges, tunnels, airports, ports, drinking water supply networks, pumping stations, sewage purification treatment dams, well irrigation projects, supervising work Establishments period their continuation, so not permissible flag alone

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Flat Slab
كتاب

Flat Slab

Flat Slab
كتاب

Flat Slab

مميّز
عن كتاب Flat Slab:
تأليف : الدكتور ياسر الليثى

To utilize the slab thickness to optimum level, the essential aspects that should be kept in mind are:

Procedure related to design
Presence or absence of holes
Significance of deflections
Previous layout application experience
Types of Flat Slab Construction

Following are the types of flab slab construction:

Simple flat slab
Flat slab with drop panels
Flat slab with column heads
Flat slab with both drop panels and column heads
Uses of Column Heads

It increase shear strength of slab
It reduce the moment in the slab by reducing the clear or effective span
Uses of Drop Panels

It increase shear strength of slab
It increase negative moment capacity of slab
It stiffen the slab and hence reduce deflection
Advantages of Flat Slabs

It is recognized that Flat Slabs without drop panels can be built at a very fast pace as the framework of structure is simplified and diminished. Also, speedy turn-around can be achieved using an arrangement using early striking and flying systems.

Flat slab construction can deeply reduce floor-to –floor height especially in the absence of false ceiling as flat slab construction does act as limiting factor on the placement of horizontal services and partitions. This can prove gainful in case of lower building height, decreased cladding expense and pre-fabricated services.

In case the client plans changes in the interior and wants to use the accommodation to suit the need, flat slab construction is the perfect choice as it offers that flexibility to the owner. This flexibility is possible due to the use of square lattice and absence of beam that makes channelling of services and allocation of partitions difficult.


Thickness of flat slab

Thickness of flat slab is another very attractive benefit because thin slab provides the advantage of increased floor to ceiling height and lower cladding cost for the owner. However, there is profound lower limit to thickness of slab because extra reinforcements are needed to tackle design issues. Besides this, added margin must be provided to facilitate architectural alterations at later stages.

Types of Flat Slab Design

Multitudes of process and methods are involved in designing flat slabs and evaluating these slabs in flexures. Some of these methods are as following:

The empirical method
The sub-frame method
The yield line method
Finite –element analysis
For smaller frames, empirical methods are used but sub-frame method is used in case of more irregular frames. The designs are conceptualized by employing appropriate software but the fact is using sub-frame methods for very complicated design can be very expensive.

The most cost effective and homogenous installation of reinforcements can be achieved by applying the yield line method. A thorough visualization in terms of complete examination of separate cracking and deflection is required since this procedure utilises only collapse mechanism.

Structures having floors with irregular supports, large openings or bears heavy loads, application of finite- element analysis is supposed to be very advantageous. Great thought is put into choosing material properties or installing loads on the structures. Deflections and cracked width can also be calculated using Finite- element analysis.

Areas That Require Attention in Design of Flat Slab

1. Deflections-Usually at the center of each panel deflections are maximum. Foreseeing deflections can be very tricky and will engage some form of elastic appraisal. While designing structure layout and during implementation using sub frame method, one way to evaluate mid-panel deflection is to use at least two parallel column strips.

2. Proprietary punching sheer reinforcement systems- In case of thin flat slab construction punching sheer reinforcements are indispensable.

3. Optimization of Main reinforcement- In certain design procedures, especially in yield line output is better optimized than in other design methods.

Benefits of Using Flat Slab Construction Method

Flexibility in room layout
Saving in building height
Shorter construction time
Ease of installation of M&E services
Use of prefabricated welded mesh
Buildable score
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