DUCTILE DETAILING AS PER CODE ppt
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This document discusses design specifications for ductile reinforced concrete buildings to withstand earthquakes. It defines ductile materials as those that can undergo large deformation without breaking. Design and construction must follow IS 456-2000, except where modified. Flexural members like beams and slabs must have a width to depth ratio over 3.0 and width over 200mm. Depth should not exceed 1/4 of clear span. Longitudinal reinforcement resists bending. At least two top and bottom bars are needed. Web reinforcement in stirrups prevents bulging and buckling of longitudinal bars. Transverse reinforcement in columns prevents buckling. Special confining reinforcement is also discussed.
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The document discusses ductility and ductile detailing in reinforced concrete structures. It states that structures should be designed to have lateral strength, deformability, and ductility to resist earthquakes with limited damage and no collapse. Ductility allows structures to develop their full strength through internal force redistribution. Detailing of reinforcement is important to avoid brittle failure and induce ductile behavior by allowing steel to yield in a controlled manner. Shear walls are also discussed as vertical reinforced concrete elements that help structures resist earthquake loads in a ductile manner.
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Visit : https://teacherinneed.wordpress.com/
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Visit : https://teacherinneed.wordpress.com/
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Reinforced concrete buildings in seismic regions often include vertical shear walls that run from the foundation to the roof. Shear walls help buildings withstand earthquakes by carrying lateral forces down to the foundation. They perform much better when properly designed to be ductile. Shear walls work best when located symmetrically along exterior walls and in both principal directions. Buildings with sufficient shear walls designed according to seismic standards have demonstrated good performance during past earthquakes.
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Shear wallFinal year Btech civil engineering student at viswajyothi college of engineering & technology
shear walls are vertical elements of the horizontal force resisting system. Shear walls are constructed to counter the effects of lateral load acting on a structure.Shear wall
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This document provides guidelines for detailing of reinforcement in reinforced concrete structures according to Indian codes IS456 and IS13920. Some key points discussed include:
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All types of insulation material suppliers in Greater Noida
we are all types of insulation material suppliers in Noida, we provide various types of insulation including storage tanks, different grades of pipes, vessels, reactors & various equipment for a wide range of process industries. Along with that we provide Hot water piping, Warm water piping, CIP piping &Chiller piping, HVAC piping.
For more details, please visit our website -https://avengineersefp.com/service/hot-and-cold-insulation/
All types of insulation material suppliers in Greater Noida
we are all types of insulation material suppliers in Noida , we provide various types of insulation including storage tanks, different grades of pipes, vessels, reactors & various equipment for a wide range of process industries.along with that we provide Hot water piping,Warm water piping ,CIP piping &Chiller piping ,HVAC piping.
For more details please visit our website -https://avengineersefp.com/service/hot-and-cold-insulation/
A Post Tension Primer
Post-tensioning is a technique for reinforcing concrete structures. The prestressing steel cables inside the sleeves or plastic ducts are positioned in the forms before placing the concrete. As the concrete gains strength, the cables are stressed to design forces before the application of the service load and are anchored att the outer edge region of the concrete.
IRJET-Effective Location Of Shear Walls and Bracings for Multistoried Building
This document analyzes the effectiveness of different structural configurations for resisting lateral loads in a 10-story building subject to seismic activity. Two structural models are considered: a normal building frame and a dual system with shear walls and bracings placed at the building corners. Both models are analyzed using time history analysis in STAAD-Pro. Results show that the dual system experiences significantly less lateral deflection, with displacements reduced by 86-89% compared to the normal frame building. Additionally, the dual system sees only minor reductions in maximum shear force and bending moment compared to the normal frame building. Therefore, the dual system with corner shear walls and bracings provides greatly enhanced seismic performance over a normal framed building.
Effective Location Of Shear Walls and Bracings for Multistoried Building
This document describes a study analyzing the effective placement of shear walls and bracings in a 10-story building to resist seismic forces. Two structural models are developed - a normal building frame and a dual system with shear walls and bracings at the building corners. Both models are analyzed using time history analysis in STAAD-Pro. The results show that the dual system with shear walls and bracings has significantly less lateral deflection under earthquake loading compared to the normal building frame, with deflections reduced by over 70% at the top story. This demonstrates that a combination of shear walls and bracings located at the building corners can greatly enhance the seismic performance of a multi-story building by reducing lateral displacements and
Pre-stressing
Prestressing is a technique where internal stresses are introduced into a material to counteract loads. In prestressed concrete, high-strength tendons placed under tension are used to put concrete structures into compression before loads are applied. There are two types of prestressing: pre-tensioning, where concrete is cast around tensioned tendons; and post-tensioning, where tendons are tensioned after concrete has set. Bonded post-tensioning permanently bonds tendons to concrete using grout, while unbonded post-tensioning allows tendon movement. Prestressed concrete provides benefits like crack control, durability, and ability to build larger structures. Common applications include bridges, buildings, dams, tanks, and nuclear containment
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This document summarizes how beams and columns in reinforced concrete (RC) buildings resist earthquakes. It discusses the reinforcement and design strategies for beams and columns.
For beams, it describes the longitudinal bars and stirrups that provide flexural strength and resist shear cracks. The design focuses on placement of steel to resist stretching on both faces. Columns use longitudinal bars and transverse ties to resist axial and shear stresses. The design aims to prevent shear failure through close spacing of ties. Reinforcement details like hook ends and lap lengths are specified to improve ductility.
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This document discusses design aspects for making structures resistant to terrorist attacks. The objectives of blast-resistant design are to reduce injuries, facilitate rescue efforts, expedite repairs, prevent progressive collapse, and accelerate returning to full operations. Explosions from vehicle or package bombs are major threats. Design principles include determining the threat level based on bomb size and standoff distance. Specific structural elements like floors, columns, transfer girders, glazing, and shear walls can be strengthened to improve blast resistance. Maintaining standoff distance and hardening vulnerable interior spaces are also discussed.
Presentation1
This document discusses prestressed concrete, which uses steel that is tensioned to put concrete in compression and increase its strength. There are two main types: pre-tensioned concrete, where steel is tensioned before the concrete is poured; and post-tensioned concrete, where steel is tensioned after the concrete has hardened. Post-tensioned concrete can be bonded or unbonded. Prestressed concrete allows for longer spans, thinner sections, and increased strength over traditional reinforced concrete. It has applications in buildings, bridges, parking structures, and other structures.
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All types of insulation material suppliers in Greater Noida
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DUCTILE DETAILING AS PER CODE ppt
- 1. Presented by:- Manisha Kumari Meena Neeraj Kumar Singhal Nikesh singh Nitesh Mittal
- 2. Introduction The requirments for designing and detailing of monolethic reinforced 1concrete building so as to give them sufficient toughtness and ductility to resist severe earthquake shocks without collapse.
- 3. DEFINATION OF DUCTILE MATERIAL The material which can undergo large defomation and elongation while resisting while ductile material gives sufficient warning befoe collapse.
- 4. General Specification The design and construction of reinforcement concrete building governed by IS 456-2000 except as modified by this code.
- 5. Flestrxural(bending) members IS 456-2000 the beam and slabs of any structure are flexural member which are designed to resist flexural. The member a width to depth ratio of morn than 3.0. width of member not be less than 200mm. The depth D of the member shall be not more than 1/4th of clear span.
- 6. Longitudinal Reinforcement These bars are provided in the beam to resist bending cracks. The top and bottom reinforcement shall consist of at least two bars throughout the member length
- 7. Web Reinforcement(Transverse Reinforcement Stirrup) The main function of such reinforcement is to prevent concrete from bulging outwords and also prevent longitudional bars from buckling
- 8. TRANSVERSE REINFORCEMENT OF COLUMNS These reinforcement prevent columns from buckling of vetical bars and keep together.
- 10. THANK YOU