REINFORCED CONCRETE DESIGN 1 Design of Slab Examples and

Design of Slab Examples and Tutorials by Sharifah Maszura Syed Mohsin Example 1 Simply supported One way slab A rectangular reinforced concrete slab is simply supported on two masonry walls 250 mm thick and 3 75 m apart The slab has to carry a distributed permanent action of 1 0 kN m2 excluding slab self weight and a variable action of 3

cement thickness verses machine weight Practical Machinist

11 03 2005 nbsp 0183 32 As far as the curing of the concrete it depends on how much water you add when pouring it Keep the added water to a minimun and you will increase the strenght and lower the cure time I wouldn t hesitate to put any normal sized machine tool on a 4 quot slab with 6x6 ww reinforcement IF the compaction is good under the slab and should engage a structural engineer to design a proper slab

Impact of LRFD Specification on Load Distribution of Prestressed

prestressed concrete beams and spread box beams in rectangular bridge superstructures Significant reductions in the distribution factor for interior beams are found in both the simplified and refined procedures When the current AASHTO American Association of State Hi ghway and Trans 173 portation Officials simplified method of lateral load distribution is used the resulting load share that is carried

Manual for Design and Detailing of Reinforced Concrete to the

2 0 Some highlighted aspects in Basis of Design 3 0 Beams 4 0 Slabs 5 0 Columns 6 0 Beam Column Joints 7 0 Walls 8 0 Corbels 9 0 Cantilevers 10 0 Transfer Structures 11 0 Footings 12 0 Pile Caps 13 0 General Detailing 14 0 Design against Robustness 15 0 Shrinkage and Creep Appendices 1 Manual for Design and Detailing of Reinforced Concrete to the September 2013 Code of Practice for Structural

Best Concrete Design EXCEL Spreadsheet

Files gt Download Best Concrete Design EXCEL Spreadsheet CivilEngineeringBible com FREE This spreadsheet consists of many segments regarding RCC aspects as described below Beam Design Flexural design Serviceability Shear design Column Design Slab Design Grid Floor Analysis amp Design Staircase Design Separate Excel spreadsheet Combined Footing Foundation analysis and design


SAFE offers a wide rage of code based design features for reinforced concrete and PT beam slab design and composite steel beams View a full list of supported design codes Supported Design Codes Deformed Geometry Deformed geometry can be shown after running the analysis Values are displayed instantaneously when hovering over the model The deformed geometry can be displayed as filled or

Machine Foundation Design SlideShare

29 04 2011 nbsp 0183 32 In majority of the cases the machines are supported on a simple concrete block Engineering Services – Chennai office January 2011 4 In the context of Machine foundation design a Machine would necessarily include A drive machine A driven machine A coupling device Schematically coupling Driven Drive machine machine Fig 13 Engineering Services – Chennai office

PDF Analysis and Design of Box Culvert A Manual Approach

Box takes various types of loads generated by Top slab needed to be made otherwise precast slab also water traffic cushion soil etc This work deals with available in market we cannot joint it monolithically complete design of box culvert manually and study the Cushioning is very important in every box culvert which design parameters such as effect of earth pressure depth decided by road profile and bearing

Collection of Design Excel Sheets Online CivilForum

12 07 2021 nbsp 0183 32 Two Way Slab Design Based on ACI 318 11 using Finite Element Method Design of Slab Two Way Excel Sheet Concrete Mix Design Excel Sheet Design of stair case with central stringer beam Check List for Block work Bar Bending Schedule OF Box Culvert Concrete Steel Calculator Estimates in Building Construction Sample Spreadsheet Estimate of Requirment of

Honeycombs in Concrete Their Causes and Remedies

Corrosion is a process which continues through reinforcement rods even in good concrete this result in losing grip between rods and concrete which is very dangerous to safety and life of concrete structures Reinforced concrete structures have failed within 20 or 30 years of their construction due to honeycombs which is less than half their projected life Especially no risk should be taken in case of columns


SLAB DESIGN Reading Assignment Chapter 9 of Text and Chapter 13 of ACI318 02 Introduction ACI318 Code provides two design procedures for slab systems 13 6 1 Direct Design Method DDM For slab systems with or without beams loaded only by gravity loads and having a fairly regular layout meeting the following conditions 13 6 1 1 There must be three or more spans in each directions 13 6 1 2 Panels

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Concrete Tools Guide Concrete Information Design Ideas

Trowels Used for closing up the slab at the end of the finishing process Power Tools for Concrete Grinders saws polishing machines and other equipment Concrete Finishing Tips How to place spread and finish a concrete slab In Bob Harris Guide to Stamped Concrete the veteran decorative concrete pro says it s essential to match the tool to the job quot The work you do immediately following concrete



Constructing a Mat Slab Concrete Construction Magazine

18 01 2006 nbsp 0183 32 Given the 4 189 foot thickness of the slab for this project a mass concrete mix design with a low heat of hydration was needed in order to avoid thermal cracking John Gajda a principal engineer for Construction Technology Laboratories CTL Skokie Ill says that concrete temperatures for mass concrete placements shouldn t exceed 160 176 F Additionally based on a simple rule of thumb the

Collection Of Civil Engineering Design Spreadsheet

12 07 2021 nbsp 0183 32 Design of Slab Two Way Excel Sheet Concrete Mix Design Excel Sheet Design of stair case with central stringer beam Check List for Block work RCC Dog legged Staircase design Excel Sheet Daily work report Excel Sheet Sample Detailed Estimate Excel Sheet REINFORCED FLAT SLAB DESIGN EXCEL SHEET Rectangular Column Calculations Column Design with Excel Structural

Constructing a Mat Slab Concrete Construction Magazine

18 01 2006 nbsp 0183 32 For practical purposes according to PCA s Design and Control of Concrete Mixtures Kosmatka Kerkhoff and Panarese Portland Cement Association 2002 slabs and footings more than 3 feet thick qualify as mass concrete Thermal cracking in mat slabs can be managed by the type and amount of cement used by adding pozzolans by increasing the amount of reinforcing steel by

Building Foundations Loads Engineering ToolBox

Engineering ToolBox Resources Tools and Basic Information for Engineering and Design of Technical Applications search is the most efficient way to navigate the Engineering ToolBox Building Foundations Loads Typical loads on building foundations Sponsored Links Typical maximum loads on building foundations Concrete frame masonry clad 20 25 kN m 2 Steel frame masonry clad

Civil Engineering Spreadsheet Collection 2018 Update Civil

14 04 2018 nbsp 0183 32 Post tensioned Analysis amp Design Rectangular HSS amp Box Shaped Members Combined Bending Shear and To docx Reinforced Retainig walls Design retaining wall with piles Shear Connection Design Slab Design version 1 Soil Arching Braced Excavation Staircase Calculations Steel Connection Design Trench design Two Way Slab Design Allowable Combined Bending Shear and Torsion Bridge

Non Destructive Testing of Concrete A Basic Guide Gilson Co

Moisture Emission Test Kits determine moisture emission over time through concrete floor slabs A container of moisture absorbing calcium chloride is weighed and placed under a plastic dome sealed to the concrete surface with a self adhering gasket After the test cycle the plastic is cut open and the dish of calcium chloride is removed sealed and weighed The weight gain and exposure time values are

Self launching erection machines for precast concrete bridges

machines for precast concrete bridges Marco Rosignoli The technological aspects of construction influence the modern bridge industry from the very first steps of design Entire families of prestressed concrete bridges such as launched bridges span by span bridges and balanced can tilever bridges take their names straight from the construc tion method Construction of precast concrete bridges with

SAFE 2016 v16 0 0 Release Notes Computers and Structures

94369 An incident was resolved for the ACI 318 14 ACI 318 11 and ACI 318 08 design codes where the reinforced concrete slab value of Asmin was limited to 0 0018Ag i e the rebar yield value fy was limited to 60 ksi or less Now for rebar with fy greater than 60 ksi the value of Asmin is computed using 0 0018 60 000 fy gt 0 0014 Ag

Design Of Heavy Duty Concrete Floor Slabs On Grade

This manual prescribes the criteria for the design of concrete floor slabs on grade in buildings for heavy loads and is applicable to all elements responsible for military construction Heavy loads in buildings such as warehouses include moving loads stationary live loads and wall loads 1 2 Scope Theoretical concepts practical applications basis of design and design procedures for heavy loads are

Structural Guide Designs of structural elements

Structural loads structural analysis and structural design are simply explained with the worked example for easiness of understanding Element designs with notes and discussions have added to get comprehensive knowledge Also construction materials shoring system design water retaining structures crack width calculations etc have discussed in addition to other aspects

Concrete Mixers Concrete Mixer Machine Latest Price

10 7 Hydraulic Concrete Mixer 600 Kg Capacity 10 Cft Mixing Capacity ₹ 90 000 Get Latest Price Capacity 10 cft MIXING CAPACITY Machine Type Concrete Weight 600 KG Drum Capacity 300 Ltr Speed Of Drum 19 RPM Concrete Mixing Time 3 MINTS APPROXIMATE read more


Cast in situ first storey typically reinforced concrete beam and slab system Precast concrete load bearing walls Precast concrete non load bearing fa 231 ade panels Precast concrete floor system either Precast concrete beams and precast slabs reinforced concrete or prestressed with a composite in situ topping or Precast concrete walls with precast concrete slab system Figure 3 1 Precast prestressed

Concrete Jointing and Details Thickness is Only the Start

Tensile stresses crack concrete slabs Slab Length amp Related Design Factors Experience indicates that there is an increase in transverse cracking when the ratio L ℓ exceeds 4 44 L slab length Slab Length vs Pavement Thickness Relationships Using the criterion of a maximum L ℓ ratio of 4 44 the allowable joint spacing would increase with increased slab thickness but decrease with increased stiffer


Standard Specification for Precast Concrete Manhole Sections Part II covers the minimum requirements for the various manhole components The following products are addressed grade rings flat slab tops risers conical tops base sections and steps ladders It should be noted that ASTM Standards are minimum design specifications

An Engineer s Guide to Openings in Concrete Floor Slabs

Openings in Concrete Floor Slabs BUILDINGS If you took an advanced concrete design course you probably had a good introduction to the design of two way slabs Although all multi story buildings require multiple small slab penetrations for routing of plumbing fire protection piping and ductwork between floors and larger openings for stairwells and elevator shafts your course

Joints in Concrete Buildings

the beams and slabs they support Figure 1 During placement the concrete adjacent to the joint should be well compacted and special attention should be paid to vibration The joint should be stripped when the concrete has set and hosed down to expose the coarse aggregate Any problems in stripping of the joint will be eased if it is located away from regions of high moment and reinforcement congestion

Inspection Checklist for Concrete Placement The Constructor

Inspection of concrete is done in 3 stages Pre placement During placement Post placement Type of inspection of concrete depends on type of concrete i e PCC or RCC type of elements to be casted such as RCC slab columns footing beams walls etc It is both beneficial to contractor as well as engineer to maintain the record of checks

Reinforced Concrete Design to BS8110 Structural Design 1 –

Note deflection is usually more critical in slab design 4 3 Initial sizing All designers develop their own techniques to help them start to tackle the problem in hand The following example shows a simple method of sizing a beam using 1 Span Effective depth ratio to estimate a suitable depth for the section 2 2Limiting the design shear stress v V bd to say 1 2N mm As the starting point Reinforced

List of IS Codes for Cement and Concrete Civil Engineering

04 05 2017 nbsp 0183 32 IS 14858 2000 Requirements for compression testing machine used for testing of concrete and mortar IS 14959 Part 1 2001 Method of test for determination of water soluble and acid soluble chlorides in mortar and concrete Part 1 Fresh mortar and concrete IS 14959 Part 2 2001 Method of test for determination of water soluble and acid soluble chlorides in mortar and concrete Part 2 Hardened

Concrete Slab on Grade Analysis Calculator for Post or Wheel

the ratio of the stiffness of the slab to the stiffness of the foundation 1 For 6 quot to 10 quot thick slabs on grade with k values between 100 pci and 200 15 to 20 for a wheel or post spacing of 3 to 4 2 For wheel or post spacings of 5 to 15 the increase in stress is approximately 0 to 5

Method Statement for In situ Concrete amp General Concrete Work Welcome

21 05 2018 nbsp 0183 32 This method statement for in situ concrete amp general concrete work describes the process to be implemented during the entire activity for such as in situ concrete concrete foundations slab on grade blindings columns beams retaining walls slabs raft concrete precast concrete self consolidating concrete mass concrete and any structural concrete works The adopted codes govern

The Construction and Design of Concrete Slabs on Grade

The Construction and Design of Concrete Slabs on Grade D Matthew Stuart P E S E F ASCE SECB COURSE CONTENT Slab on Grades Construction Introduction Concrete slabs on grade are a very common type of concrete construction Floor slabs can range from a simple residential basement slab to a heavy duty industrial floor However no matter how basic or complex


The basic design procedure of a two way slab system has five steps 1 Determine moments at critical sections in each direction normally the negative moments at supports and positive moment near mid span Ecb Muduls of Elasticity of Beam Concrete C Torsional Constant of the Cross–section The constant C is calculated by dividing the section into its rectangles

PDF Guide for concrete floor and slab construction mahmut

Some contractors find that embedding the ma f CONCRETE FLOOR AND SLAB CONSTRUCTION 302 1R 39 terials and restraightening can be accomplished in one step 8 7 1 Bonded monolithic two course floors For these using a modified highway straightedge floors the topping course is placed before the base course 9

The Structural Engineer s Site Inspection Checklists

07 10 2020 nbsp 0183 32 The key to checking the suspended slabs and beams during the site inspection is to understand the bar bending details of beams and slab See to it that you are certain on the slab beam that you are checking of The number of steel reinforcements of top and bottom as well as the extra bars should be checked and as a consultant you should be able to demonstrate where is the proper

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How to Pour a Concrete Shed Slab DIY YouTube

01 12 2017 nbsp 0183 32 In this video we go over how to Pour a easy Beginner concrete Shed Slab We go take you from start to finish on this job of how we accomplished a 8 x 10 sh

Concrete technology for a CONCRETE future

in the design and construction of machines for making hollow core slab and pre stressed concrete products and developing new technologies for the production of pre stressed concrete products We are like a tailor we make the right system according to customer needs Mr Silvio Perego CEO of Witech Company The wide range of products and the high level of customization that Witech can offer are

Concrete Slab Load Capacity Engineering ToolBox

Load capacity of simply supported concrete slabs Engineering ToolBox Resources Tools and Basic Information for Engineering and Design of Technical Applications Concrete Slab Load Capacity Load capacity of simply supported concrete slabs Sponsored Links Load capacities of simply supported concrete slabs Thickness mm Self Weight kg m 2 Imposed Load kg m 2 Total Load Span m

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