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vivek gami
vivek gami

vivek gami

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What is the center of stiffness? where it is used?

  1. AdityaBhandakkar

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    What is the center of Stiffness?

    I added more information, Centre of stiffness is also called as a centre of rigidity. According to IS 1893-2002, it is the point from which the restoring force resultant of the system acts. In this case, the lateral forces pass from the centre of stiffness. Stiffness (K)= (force on the system (P) /Read more

    I added more information,

    Centre of stiffness is also called as a centre of rigidity.

    According to IS 1893-2002, it is the point from which the restoring force resultant of the system acts. In this case, the lateral forces pass from the centre of stiffness.

    Stiffness (K)=

    (force on the system (P) / displacement of the system)

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Ankita Pal
Ankita Pal

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During GATE, IES exam it is difficult to follow any traditional method to follow from start to end solution. What are the conceptual shortcuts to find slope and deflection of the beam which can be used to find a solution ...

  1. Kuldeep Singh

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    Well, if you're analyzing a beam, then the quickest and easiest way is hands down, the moment - area method. Students often overlook it and delve into complex methods while the problem may be solved a lot easily. Other than this, there are often other quick methods depending on the question. For exaRead more

    Well, if you’re analyzing a beam, then the quickest and easiest way is hands down, the moment – area method. Students often overlook it and delve into complex methods while the problem may be solved a lot easily.

    Other than this, there are often other quick methods depending on the question. For example sometimes the conjugate beam method is not such a bad choice. If you can write the moment curvature equation and are quick at differentiation, you can use that.

    I for one, never get into slope deflection method unless it is strictly needed. I stick to moment area, conjugate beam and the 4th order differential equation.

    Also, a friendly tip : just have a look at the options especially in the IES paper. They never push you into long calculations. You could sense that some options just have to be wrong and are nowhere close to be correct. In GATE, this approach doesn’t fare well though.

    Hope it helps.

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Getu B.
Getu B.

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How to detect/identify reinforcement bars inside the hardened concrete, such as footings and columns without destructing the built concrete?

  1. AdityaBhandakkar

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    This answer was edited.

    Hi, Following are some process to identify the defects and done inspection of Steel bars in reinforcement concrete Eddy current Technique, Single frequency method, Microwave heating of numerical modelling, Refer this methods in ACI for details practical use.

    Hi, Following are some process to identify the defects and done inspection of Steel bars in reinforcement concrete

    1. Eddy current Technique,
    2. Single frequency method,
    3. Microwave heating of numerical modelling,

    Refer this methods in ACI for details practical use.

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    • 36
Asked: In:
vivek gami
vivek gami

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What is bar bending schedule in RCC?

  1. Kuldeep Singh

    Kuldeep Singh

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    Kuldeep Singh Learner

    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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poojan
poojan

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Which type of cement is used in the construction of a pile foundation? Kindly mention the references from codes or guides for the answer.

  1. Madeh Izat Hamakareem

    Madeh Izat Hamakareem

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    Madeh Izat Hamakareem

    Any type of cement can be used as long as the design and durability requirements of the concrete used to construct the pile are met. For instance, if the sulfate attack is expected, it is desirable to select sulfate resistance cement because it produces concrete that withstand sulfate attack. As a rRead more

    Any type of cement can be used as long as the design and durability requirements of the concrete used to construct the pile are met. For instance, if the sulfate attack is expected, it is desirable to select sulfate resistance cement because it produces concrete that withstand sulfate attack. As a result, the produced concrete would durable.

    You can visit the following link to read more about Applications of Different Types of Cement for Concrete Construction:

    https://theconstructor.org/building/applications-cement-types-concrete/7686/

    The ACI code 318-18 provides the design and durability requirements of concrete.

    Design Requirements of Concrete Based on ACI 318-19

    https://theconstructor.org/concrete/design-requirements-concrete/39004/

    Concrete Durability Requirements Based on ACI-318-19

    https://theconstructor.org/concrete/concrete-durability-requirements/39036/

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Vicky Patel
Vicky Patel

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How the loads transmit in elements of the Intze water tank?

  1. Preet Chovatiya

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    For design roof slab the following load considers during the design of the Intze tank. 1. Self-weight of slab For design bottom slab the following load acting on the bottom slab is. 1. Weight of wall of the tank 2. Weight of roof slab 3. Self-weight of the bottom slab 4. Weight of water For design bRead more

    For design roof slab the following load considers during the design of the Intze tank.

    1. Self-weight of slab

    For design bottom slab the following load acting on the bottom slab is.

    1. Weight of wall of the tank

    2. Weight of roof slab

    3. Self-weight of the bottom slab

    4. Weight of water

    For design beam the following loads calculate.

    1. Self-weight of beam

    2. Weight of slabs

    3. Floor finish or live load

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Asked: In:
vivek gami
vivek gami

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Why Earth pressure at rest is used for basement slab wall, bridge abutment?

  1. AdityaBhandakkar

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    If the wall is rigid and cannot be move when the pressure exerted on the wall, then the soil behind the wall is in the state of static equilibrium. This case is called rest earth pressure. For bridges, slab walls and Abutments is soil mass or backfill with static equilibrium is required because it cRead more

    If the wall is rigid and cannot be move when the pressure exerted on the wall, then the soil behind the wall is in the state of static equilibrium. This case is called rest earth pressure.

    For bridges, slab walls and Abutments is soil mass or backfill with static equilibrium is required because it can bear the heavy load. Thus for safety point of view in construction pressure at rest is considered. In this case, all the pressures are being exerted uniformly on the retaining wall.

    There are two types of conditions developed

    For normally consolidated clay,

    K= 1- sin(¢)

    For overconsolidated clay

    K(overconsolidated )= K(normally consolidated clay) x √OCR 

    OCR= OVERCONSOLIDATION RATIO

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Raghvendra_Rai
Raghvendra_Rai

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Why a Continuous RCC beam should be designed as a Tee beam for Span moments and as a Rectangular Beam for Support Moments?

  1. Madeh Izat Hamakareem

    Madeh Izat Hamakareem

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    Madeh Izat Hamakareem

    In the regions of a positive moment, a portion of the slab works with the beam (both under compression force), so that part should be included in the beam design. However, negative moments develop cracks at the upper part of the beam. So, the cracked part of the concrete section is neglected in theRead more

    In the regions of a positive moment, a portion of the slab works with the beam (both under compression force), so that part should be included in the beam design. However, negative moments develop cracks at the upper part of the beam. So, the cracked part of the concrete section is neglected in the design, and the lower portion is in compression which is rectangular.

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