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Tilt-up basics

the floor slab and the roof stru c t u r e attachment) to the panel thickness. The generally accepted slenderness ratio on tilt-up walls is 50. However, a qualified engineer should make the final determination. Floor slabs must be designed to support crane loads during ere c t i o n . These loads may exceed building oc-cupancy loads in some

Thumb Rules used in Construction For Civil Engineers

May 11, 2021· Step 2: Calculate the steel quantity using formula. As per the above table, the steel quantity of slab is 1% of the total volume of concrete utilized. Thumb rule to calculate Steel quantity of above slab = Volume of Concrete x Density of Steel x % of .

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Thumb Rules Formula for Civil Engineers & Quantity Surveyors

Sep 11, 2021· 2. Thumb Rule for Steel Quantity for Slab, Beams, Footings & Columns. Following are some important thumb rules for steel calculation for slab, beam, column, and footings. Steel required in residential buildings = 4.5 Kgs – 4.75 Kgs / sq. Ft. Steel required For Commercial buildings = 5.0 Kgs-5.50 Kgs/Sq. Ft. You can also use BN Datta recommendations for the more accurate result,

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Thumb rules for placing column layout

Dec 09, 2017· Three thumb rules to be followed are as follows: -Size of the Columns -Distance between Columns -Alignment of columns. 3. Thumb rule Size of the columns The size of the columns depends on the total load on the columns. Minimum size of the column should not be less than 9"x9". 9"x9" columns are to be used for a single storey

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Retaining Wall Design

Base slab width b= 0.4H to 0.6H, 0.6H to 0.75H for surcharged wall Base slab thickness= H/10 to H/14

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Basics of Retaining Wall Design

retaining walls: restrained (basement) walls, gravity walls, and segmental retaining walls both gravity and with geogrids. Other topics include sheet pile walls, tilt-up retaining walls, soldier pile walls, gabion walls, counterfort walls, pilaster walls and walls with pile or pier foundations. A review of basic soil

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Thumb Rule for cement in Rcc structure l How much cement

Thumb Rule for cement in Rcc structure l How much cement required in slab beam column lHi guys im Civil Engineer welcome to my utube channel This channel is...

Structural Engineering Design Rules of Thumb

Tilt-Up Floor Slab Tilt-Up Wall Panel Column First Floor Column MASONRY STEEL WOOD Floor Beam/Joist Floor Beam - Vibrating Machinery or Track Support Composite Floor Beam ing rules of thumb to be useful in estimating the approximate depth of a structural member as well as reviewing the reasonableness of a design.

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Thumb rules for designing a Column layout

Sep 09, 2011· One can use beams of size 9″ X 12″ (225 MM x 300MM) with a slab thickness of 5″ (125 MM) cast in M20 concrete for spans up to 5m. There are other considerations like secondary and tertiary spans, point loads and wall loads which have to be considered. It is complicated, but thumb rules can work if the structure is simple.

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How to Estimate Preliminary Sizes of Concrete Elements

4. Two-way Solid Slab. As a rule of thumb, the thickness of a simply supported two-way concrete slab can be taken as 4 cm per meter of span, and 3.5 cm per meter of span for a continuous slab. Alternatively, divide the perimeter of the slab panel by 180 to achieve a .

Tilt-up basics

the floor slab and the roof stru c t u r e attachment) to the panel thickness. The generally accepted slenderness ratio on tilt-up walls is 50. However, a qualified engineer should make the final determination. Floor slabs must be designed to support crane loads during ere c t i o n . These loads may exceed building oc-cupancy loads in some

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Concrete Jointing and Details: Thickness is Only the Start

Rules of Thumb for Jointing & Slab Dimensions Spacing: Recommendation of 2.5 times the depth in feet For example: 4" thick = 10' maximum (4 x 2.5) Panel shall be kept as square as possible L:W of 1½:1 (Maximum length to width ratio)

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Issues in Post-Tensioned

A good rule of thumb is that a post-tensioned system will move about 1 inch for every 100 feet of slab that is not restrained by a lateral system. If the edge of the slab is 50 feet away from the nearest shear wall, when post tensioned this edge will move in about 1⁄2 inch. If this edge move-ment is prevented, either the slab or the

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Mandatory rules of thumb load bearing masonary

Jun 22, 2017· NBC202V2.RV7 31 October 1994 40 MANDATORY RULE OF THUMB FOR BRICK MASONRY BUILDINGS CONSTRUCTED IN MUD MORTAR 18 Width of Footing The width of the strip footing for the wall shall be made as shown in Figure 1.3. 19 Height of Wall The height of the wall shall not be greater than eight times its thickness. 20 Openings in Walls Openings shall be

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Thumb Rule for cement in Rcc structure l How much cement

Thumb Rule for cement in Rcc structure l How much cement required in slab beam column lHi guys im Civil Engineer welcome to my utube channel This channel is...

Thumb Rule for cement in Rcc structure l How much cement

Thumb Rule for cement in Rcc structure l How much cement required in slab beam column lHi guys im Civil Engineer welcome to my utube channel This channel is...

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Two-way Slabs

Comparison of One-way and Two-way slab behavior Economic Choices One-way Slab on beams suitable span 3 to 6m with LL= 3-5KN/m2. Can be used for larger spans with relatively higher cost and higher deflections One-way joist system suitable span 6 to 9m with LL= 4-6KN/m2. Deep ribs, the concrete and steel quantities are relative low Expensive formwork expected.

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Tilt-up basics

the floor slab and the roof stru c t u r e attachment) to the panel thickness. The generally accepted slenderness ratio on tilt-up walls is 50. However, a qualified engineer should make the final determination. Floor slabs must be designed to support crane loads during ere c t i o n . These loads may exceed building oc-cupancy loads in some

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The 45 Degree Rule of Thumb for Surcharges

Obviously, the 45 degree rule of thumb line occurs when M=1, i.e. when the distance from the excavation is equal to the depth of the excavation. You will note that the pressure increases significantly as the surcharge gets nearer the wall (again fairly obviously); which is why we need to account for surcharges within our 45° "zone of

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Thumb Rules Used In Construction

Thumb Rule 1: Quantity Of Steel Used In Beam, Column, Slab & Footing: Thumb Rule 2: Quantity Of Concrete With Respect To Area. Thumb Rule 3: Quantity Of Shuttering (Formwork) And Its Components. Thumb Rule 4. Quantity Of Cement, Sand, Aggregates In Different Concrete Grades. Thumb Rule 5.

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10 Rules of Thumb for Decorating the Entryway

Sep 19, 2014· Regardless of how large or small your entrance is, you'll want to follow these general rules of thumb to make it a successful space. 1. Create the illusion of an entry. If your home lacks a defined entry, utilize furniture and furnishings to create the illusion of one. An entrance rug or a change in flooring is a great way to physically

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The Truth About Post Tensioned Foundations

Rules of Thumb for Diagnosing Foundation Failure part V: The Truth About PT In previous blogs, we've discussed how a conventional foundation system is affected by the various forces. Now, let's discuss Post Tensioned foundation systems and the potential for foundation problems.

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Important Thumb Rules used in Construction by Civil

Steel quantity of slab = 7850 kgs. Thumb Rule for Masonry Work. Masonry work include bricks, mortar and plaster. The composition of mortar and plaster is cement and sand. There are different thumb rules used for plaster materials and mortar materials. Thumb Rule for No. of Bricks. No. of bricks = 500 per cubic meter. Example:

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Structural Engineering Rules of Thumb

Jan 27, 2009· Structural Engineering Rules of Thumb: 1. Beams need to have shear effects considered specifically (increased deflection, possibly reinforcement requirements in concrete, etc) when SPAN/DEPTH <=10. 2.

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Rules of thumb

Aug 21, 2009· Preliminary design Rules of thumb 1. The cost of reinforce concrete (in place) is usually somewhere between $100/m3 and $800/m3. This illustrates the fact that for a "rule of thumb" to be any good, the background for its development needs to be known. Stiff vertical members such as stability walls restrain the floor slab from shrinking

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Tilt-up basics

the floor slab and the roof stru c t u r e attachment) to the panel thickness. The generally accepted slenderness ratio on tilt-up walls is 50. However, a qualified engineer should make the final determination. Floor slabs must be designed to support crane loads during ere c t i o n . These loads may exceed building oc-cupancy loads in some

Structural Engineering Design Rules of Thumb

Tilt-Up Floor Slab Tilt-Up Wall Panel Column First Floor Column MASONRY STEEL WOOD Floor Beam/Joist Floor Beam - Vibrating Machinery or Track Support Composite Floor Beam ing rules of thumb to be useful in estimating the approximate depth of a structural member as well as reviewing the reasonableness of a design.

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Ten Rules for Framing

the wall lines accurately on the deck, but after that, I cut all of the wall plates to length by cutting to the snapped wall lines. I position the plate on the line, eyeball it, and then make the cuts at the inter-secting chalkline. Another time-saver is to make square crosscuts .

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Btu of heat per square foot — Heating Help: The Wall

A bit high for bare feet, on concrete floors. Over 40 btu per square foot requirements, look into radiant walls or ceilings. A radiant wall with a mean radiant temperature of 120° in a room at 68 could release close to 100 BTU/ hr/ sq. ft. ASHRAE would have some more surface temperatures and info on .

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Tips for Avoiding Floor Vibrations

the webs. An age-old rule-of-thumb is that the effective moment of inertia of a parallel chord truss is 0.85 times the moment of inertia of the chords. This rule is used to compute the L/360 deflection limit live load in the Steel Joist Institute load tables. This rule works well if .

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Is there any rule of thumb to determine the base raft

Answer: There is a rule of thumb, but it's used to arrive at the preliminary dimensions only and not for determining the final section. The following rule of thumb may be followed for preliminary proportioning of an RCC retaining wall: Image credit: IIT-K retaining wall design. Us...

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Construction Board: Thumb Rules for Highrise Building to

Aug 21, 2019· 34. Water proofing for sunken slab =0.23 bags/sqm 35. Waterproofing for walls =0.23 bags/sqm 36. Water proofing for balcony/toilets =0.65 bags/sqm 37. Anti terminate treatment chemical Name is chlorpyrifos 20 %. 38. Diluting 5 Lit of Chemical with 95 Lit of water and usage is 7.5 Sqm Per liter {Diluted}. To Provide 1" Dia hole And Deep 1 Foot

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ESTIMATION AND COSTING PRACTICAL NORM AND THUMB RULES

Apr 06, 2020· ESTIMATION AND COSTING PRACTICAL NORM AND THUMB RULES – TYPES, BUILDING. August 26, 2021. April 6, 2020 by Anand Kamble. Before the commencement of any project, it is necessary to work out the probable cost of construction. This is known as the estimated cost. Accuracy of estimating and costing in civil engineering depends upon the accuracy

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Eurocode 2 Span/Depth ratios for RC slabs and beams

The most economical design for a slab will depend on loading, layout, relative costs of materials etc., but in most cases slabs should be made as thin as the deflection limits allow. However if design rules allow excessive deflection, the result can be sagging floors, cracked .

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(DOC) Concrete: RULES OF THUMB

Concrete: RULES OF THUMB Initial Estimations: "To design even a simply supported beam, the designer needs to guess the beam size before he can include its self-weight in the analysis." Stiff vertical members such as stability walls restrain the floor slab from shrinking, which prevents the prestress from developing and thus reducing the

(DOC) Concrete: RULES OF THUMB

Concrete: RULES OF THUMB Initial Estimations: "To design even a simply supported beam, the designer needs to guess the beam size before he can include its self-weight in the analysis." Stiff vertical members such as stability walls restrain the floor slab from shrinking, which prevents the prestress from developing and thus reducing the

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Retaining Wall Design

Jan 13, 2014· The initial cost of a properly designed retaining wall may be from $300 to $1000 per foot depending on the height of the wall and the finished appearance. The cost of a replacement wall could be on the order of $1,000 to $2,000 per foot plus the cost to repair any structure or paving adjacent to the wall. The cost of proper engineering for a

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Rules for Fastening to Concrete

Nov 24, 2020· Purchase Anchors. Rule: Concrete fasteners should not be set closer than 10-anchor diameters from each other. Explanation: Mechanical type concrete anchors exert outward pressure against the wall of the hole in concrete. This pressure goes out and up the length of the anchor forming what is commonly called a cone of concrete, as it is cone-shaped in appearance.

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Checklist for Concrete Slab Before Casting

Oct 11, 2021· 1.2.7 Load Calculation on Column, Beam, Wall & Slab; 1.2.8 Basic Rules for Design of Column | Thumb Rules for Column Design; 1.2.9 Thumb Rules for Staircase Design Calculation | Concrete Calculation of Staircase; 1.2.10 Cement Concrete Road Construction Procedure | Concrete Pavements; 1.2.11 How to Measure the Height of A Building Tower or

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Thumb Rules For Civil Engineering

Aug 21, 2009· Preliminary design Rules of thumb 1. The cost of reinforce concrete (in place) is usually somewhere between $100/m3 and $800/m3. This illustrates the fact that for a "rule of thumb" to be any good, the background for its development needs to be known. Stiff vertical members such as stability walls restrain the floor slab from shrinking

Get Price

Thumb Rules For Civil Engineering

3. Percentage of Steel in Structural Members. Following are thumb rules for reinforcement in concrete members,. 1) Slab – 1% of the total volume of concrete (Slab steel calculation thumb rule) 2) Beam – 2% of the total volume of concrete 3) Column – 2.5% of total volume of concrete 4) Footings – 0.8% of the total volume of concrete Example: How to calculate the steel quantity of slab

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Maximum & Minimum Sprinkler Distance Rules: Standard Spray

Jun 26, 2019· The rules vary by system type. Pipe-schedule systems and hydraulically calculated systems with a density at or over 0.25 gallons per minute per square foot have a 12-foot (3.7 meters) maximum distance between sprinklers. Hydraulically calculated systems with less density have the standard 15-foot (4.6-meter) maximum.

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