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Hi. I am an architect and I’d like to hear your advise. Can this type of brick bond be used for a load bearing wall? I think that this zigzag form makes the wall stronger, but will it be enough? I ...
In masonary work, we used usually 1:4 cement-sand mortar of compressive strength 3.8N/mm2. The compressive strength of one brick of standard size is 11.12N/mm2. The compressive strength of brick masonry is 2.5 N/mm2. Thanks.
In masonary work, we used usually 1:4 cement-sand mortar of compressive strength 3.8N/mm2.
The compressive strength of one brick of standard size is 11.12N/mm2.
The compressive strength of brick masonry is 2.5 N/mm2.
Thanks.
See lessWhat is double R.C. beam?
The beam, which is reinforced from both zones i.e., compression and tension, that beam is said as Doubly Reinforced beam. It is usually given when the depth of the beam is constricted. It is obviously not safe to provide a singly r/f beam with min depth resulting in failure due to insufficient resisRead more
The beam, which is reinforced from both zones i.e., compression and tension, that beam is said as Doubly Reinforced beam. It is usually given when the depth of the beam is constricted. It is obviously not safe to provide a singly r/f beam with min depth resulting in failure due to insufficient resistance to oppose the bending moment.
Moment of resistance could not be increased by increasing the steel in the tension zone. Rather it can be increased by increasing the reinforcement, but it should not exceed 25% of the strained side. That’s why a doubly reinforced beam is provided to increase the moment of resistance of a beam having limited dimensions.
See lessStructural Drawing is included
Sir, I will share some information related with different drawings: Architectural Drawing can be termed as the mother drawing for all the other drawing. Structural drawing is the backbone drawing of the building. Electrical drawing represent the details of electric fixtures, location of switches. PRead more
Sir,
I will share some information related with different drawings:
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What are the benefits of T-beam in building compare to the ordinary beam?
T-beam is simply rectangular beam cast monolithically with the slab. Advantage os T-beam over ordinary beam:- T-beam casting with slab as we know so Its flange takes compressive stress and that mean It will resist more sagging moment of beam. Depth of beam is reduced as compare to ordinary beam so bRead more
T-beam is simply rectangular beam cast monolithically with the slab.
Advantage os T-beam over ordinary beam:-
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Which pressure us higher in retaining wall, water or soil?
In technical terms, Above the Water table, Pressure exerted by water on retaining wall = 0.5 K.H^2 K = coefficient of earth pressure H= vertical height of wall. Total stress = effective stress + pore water pressure. Earth pressure due to soil: Total stress = effective stress.
In technical terms,
Above the Water table,
Pressure exerted by water on retaining wall = 0.5 K.H^2
K = coefficient of earth pressure
H= vertical height of wall.
Total stress = effective stress + pore water pressure.
Earth pressure due to soil:
Total stress = effective stress.
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What is the procedure of designing the formwork?
Formwork is the term used for the process of creating a temporary mould into which concrete is poured and formed. Traditional formwork is fabricated using timber, but it can also be constructed from steel, glass fibre reinforced plastics and other materials. There are three types of formwork :- -BeaRead more
Formwork is the term used for the process of creating a temporary mould into which concrete is poured and formed. Traditional formwork is fabricated using timber, but it can also be constructed from steel, glass fibre reinforced plastics and other materials.
There are three types of formwork :-
-Beam formwork :-
Formwork for beams takes the form of a three-sided box which is supported and propped in the correct position and to the desired level. The removal time for the formwork will vary with air temperature, humidity and consequent curing rate. Typical striking times are as follows (using air temperature of 7-16 ºC):
i) Beam sides: 9-12 hours.
ii) Beam soffits: 8-14 days.
iii) Beam props: 15-21 days.
-Column formwork :-
This consists of a vertical mould of the desired shape and size of the column to be poured. As a means of keeping the formwork material thickness to a minimum, horizontal steel or timber clamps (or yokes) are used at equal centres for batch filling and at varying centres for filling that is completed in one pour.
The head of the column formwork can be used to provide support for the beam formwork, but while this gives good top lateral restraint it can make the formwork complex. Alternatively, the column can be cast to the underside of the beams. Later on, a collar of formwork can be clamped around the cast column to complete the casting and support the incoming beam formwork.
-Plastic formwork :-
Re-usable plastic formwork is generally used for quick pours of concrete. The formwork is assembled either from interlocking panels or from a modular system and is used for relatively simple concrete structures. It is not as versatile as timber formwork due to the prefabrication requirements and is best suited for lost-cost, repetitive structures such as mass housing schemes.
Stay-in-place structural formwork is generally assembled on site using prefabricated fibre-reinforced plastic. It is used for concrete columns and piers and stays in place, acting as permanent axial and shear reinforcement for the structural member. It also provides resistance to environmental damage for both the concrete and reinforcing bars.
Proprietary systems are used to support vertical formwork while concrete cures, consisting of a series of tubes and ties.
See lessWhat is bar bending schedule in RCC?
Bar bending schedule (BBS) is a comprehensive, detailed list of reinforcement bars to be used in an RCC construction along with their number, location, mark, type, size, lengths, details in correspondence with the drawings. It also includes the timing for the bending of each bar, and that is why it'Read more
Bar bending schedule (BBS) is a comprehensive, detailed list of reinforcement bars to be used in an RCC construction along with their number, location, mark, type, size, lengths, details in correspondence with the drawings. It also includes the timing for the bending of each bar, and that is why it’s called a bending schedule.
Bars are needed to be bent in order to give them the desired reinforcement shape. Stirrups and anchorages are two places where bar bending is compulsory. In addition, when we need to join bars, we might want to bend them on the ends before welding or fastening.
BBS also gives a clear and logical understanding as to how much bars of what sizes will be needed to be procured and bent by what time so that no delay, all procurement is done with minimal transport expenses, and all bending is done with minimal machine and labor costs.
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Komal Bhandakkar
Redundant Truss: It is a truss that includes a maximum number of structural members more than the requirement. Using the equation of equilibrium, it is impossible to analyze. It is a statically indeterminate type of structure. Thank You.
Redundant Truss:
Thank You.
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