Eccentric Loading - Graphical Method
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Eccentric load
This document discusses how to account for the effects of eccentric loads on the design of rectangular footings. It provides equations to calculate the modified width and length of a footing based on the load eccentricities. It also provides the minimum footing dimensions required for a central column and describes how to calculate the ultimate bearing capacity of an eccentric footing using either the Hansen/Vesic or Meyerhof methods.
Ppt on ecdcentric loading of short column
This document discusses eccentric loading on columns. It begins by defining centric and eccentric loading, with centric loading applying force at the centroid and eccentric loading applying force offset from the centroid, introducing bending in addition to axial stress. It then provides an example of how eccentric loading is applied to a short column, creating both direct stress from compression and bending stress from the induced moment. Finally, it notes that long columns under eccentric loading can be analyzed using differential equations to model the bending behavior along the column.
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This document discusses bearing capacity theory and failure modes in foundations. It covers several key topics:
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- Factors that influence bearing capacity like soil type, foundation geometry, load eccentricity, groundwater level, and layered soil profiles.
- Methods for calculating bearing capacity using Terzaghi's method and modifications by Vesic and others.
- How to account for load inclination, eccentricity, angular foundation bases, rigidity, and layered soil conditions in calculations.
- Empirical relationships for estimating bearing capacity from in-situ tests like S
Presentation on flow through simple pipes and flow through compound pipe
This document discusses flow through simple and compound pipes. It contains 5 sections:
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2. Transmission of power through pipes, calculating maximum power when head lost is 1/3 of total supply head
3. Time of emptying a tank through a long pipe
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This document discusses the analysis of branching pipe systems, which connect three or more reservoirs by pipes with one or more junctions. It explains that the goal is to determine discharge in the pipes given their diameters, lengths, and friction coefficients. It also outlines the key equations used: continuity, Bernoulli's, and Darcy-Weisbach. The analysis assumes steady flow conditions and minor losses are negligible.
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Eccentric load
This document discusses how to account for the effects of eccentric loads on the design of rectangular footings. It provides equations to calculate the modified width and length of a footing based on the load eccentricities. It also provides the minimum footing dimensions required for a central column and describes how to calculate the ultimate bearing capacity of an eccentric footing using either the Hansen/Vesic or Meyerhof methods.
Ppt on ecdcentric loading of short column
This document discusses eccentric loading on columns. It begins by defining centric and eccentric loading, with centric loading applying force at the centroid and eccentric loading applying force offset from the centroid, introducing bending in addition to axial stress. It then provides an example of how eccentric loading is applied to a short column, creating both direct stress from compression and bending stress from the induced moment. Finally, it notes that long columns under eccentric loading can be analyzed using differential equations to model the bending behavior along the column.
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Organizer/Moderator: Grace Barth, James Madison University
Presenters:
Grace Barth, James Madison University
Kevin Hegg, James Madison University
Andreas Knab, vrcHost
Several institutions have switched to MDID3 in the past year, and we look forward to sharing some of those experiences as well as showcasing new features. In this session we will share updates to MDID3 such as the new ability to share collections between institutions, packaged slideshows, and cataloging improvements. The MDID team will be prepared to discuss software and hardware requirements, installation issues, best practices, system integration, custom application development, and other topics. Andreas Knab from vrcHost will discuss MDID hosting experiences and any upcoming features. This informative session is open to anyone using or interested in MDID. Adequate time for a question and answer period will follow the presentation.
Continuing the tradition of a freely shared educational resource, MDID is distributed free of charge under an open source license and is used at many institutions across the United States and around the world.
Sponsored by: vrcHost
vrcHost specializes in installation, integration, customization, and feature development for the Madison Digital Image Database (MDID) project - an open source digital content management system used at hundreds of institutions worldwide for teaching and scholarship in the visual arts.
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This document discusses bearing capacity theory and failure modes in foundations. It covers several key topics:
- The three common types of bearing capacity failure - general shear, local shear, and punching shear - and the soil conditions that lead to each.
- Factors that influence bearing capacity like soil type, foundation geometry, load eccentricity, groundwater level, and layered soil profiles.
- Methods for calculating bearing capacity using Terzaghi's method and modifications by Vesic and others.
- How to account for load inclination, eccentricity, angular foundation bases, rigidity, and layered soil conditions in calculations.
- Empirical relationships for estimating bearing capacity from in-situ tests like S
Presentation on flow through simple pipes and flow through compound pipe
This document discusses flow through simple and compound pipes. It contains 5 sections:
1. Loss of head in pipes using Darcy's and Chezy's formulas
2. Transmission of power through pipes, calculating maximum power when head lost is 1/3 of total supply head
3. Time of emptying a tank through a long pipe
4. 5 group members and their program/IDs
5. Contents including the above topics and discharge through parallel pipes
Flow through branched pipes_AMIT
This document discusses the analysis of branching pipe systems, which connect three or more reservoirs by pipes with one or more junctions. It explains that the goal is to determine discharge in the pipes given their diameters, lengths, and friction coefficients. It also outlines the key equations used: continuity, Bernoulli's, and Darcy-Weisbach. The analysis assumes steady flow conditions and minor losses are negligible.
Cotter and knuckle joint
Cotter joints connect two rods rigidly to transmit axial motion without rotation. They can withstand tensile or compressive forces. A cotter joint has three main components: a socket, spigot, and cotter wedge. Examples include piston rods and crossheads.
Knuckle joints also connect rods under tension and allow angular misalignment if guided. One rod has an eye and the other a fork, connected by a pin secured with a collar and split pin. Knuckle joints are used in tie bars, suspension bridges, valve mechanisms, levers, and bicycle chains.
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The document summarizes several topics related to fluid power engineering:
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- Syphons, which use pressure differences to transfer liquids over hills using long bent pipes.
- Flow through nozzles, which increase fluid velocity by reducing the pipe cross-sectional area.
- Water hammer effects from sudden valve closures in pipes, generating pressure waves that travel through the fluid.
- Power transmission through pipes using pressure and head from fluid flow.
Combined & Eccentric Footing
An eccentric footing consists of two isolated footings connected by a structural strap or lever. This allows the footings to behave as a single unit while transferring both axial and moment loads from columns. Eccentric footings are more economical than combined footings when the soil can support higher pressures and the column spacing is large. They are used when spreading a footing to align load and area centroids is not possible, such as when a column is near a property boundary.
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1) Flow through pipes connected in series was analyzed. Head loss is calculated as the sum of losses in each pipe plus local losses at connections. Total head loss (H) equals the height difference between reservoirs.
2) Flow through pipes connected in parallel was also examined. The total flow (Q) equals the sum of individual pipe flows (Q1 + Q2). If pipe characteristics are the same, head loss will be equal in each pipe.
3) An example problem demonstrated calculating flow rate (Q) through two pipes in series where diameter changes over length. Q was found to be 0.158 m3/s. A second example calculated flow rates for two parallel pipes and the diameter required to replace
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This document discusses flow through pipes, including:
- Laminar and turbulent flow characteristics defined by Reynolds number
- Head losses calculated using Darcy-Weisbach and minor loss equations
- Friction factors determined from Moody diagrams for laminar and turbulent flows
- Total head loss in a pipe system equals major losses in pipe sections plus minor losses from fittings
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When fluid flows through pipes, there are two types of losses - minor and major losses. Major losses are due to friction along the pipe walls and are quantified using the Darcy-Weisbach equation. The Darcy friction coefficient f depends on both the Reynolds number Re and the relative roughness κ/D. Plotting log f versus log Re for different pipes allows identification of the three sub-regions of turbulent flow - smooth, rough, and transitional - and how f varies in each sub-region.
Columns lecture#4
The document discusses column behavior under different loading conditions. It presents the load and moment equations for columns under eccentric loading, and describes three failure cases: 1) pure axial load/crushing failure, 2) balanced failure, and 3) pure flexural failure. Equations are derived for the load-carrying capacity and moment capacity based on the stress-strain relationships of concrete and steel.
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This document discusses laminar and turbulent flow in pipes. It defines the critical Reynolds number that distinguishes between the two flow regimes. For non-circular pipes, it introduces the hydraulic diameter to characterize the pipe geometry. The document then covers topics such as the developing flow region, fully developed flow profiles and pressure drop, the friction factor, minor losses, pipe networks, and pump selection.
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This document discusses cotter and knuckle joints. It provides diagrams of a cut section of a socket and spigot joint, showing how the cylindrical spigot fits inside the socket. It also contains diagrams of a knuckle joint, which allows rotation between two connecting components about an axis perpendicular to their common plane. The document was authored by Hareesha N G of the Department of Aeronautical Engineering at Dayananda Sagar College of Engineering in Bangalore, India.
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- Syphons, which use pressure differences to transfer liquids over hills using long bent pipes.
- Flow through nozzles, which increase fluid velocity by reducing the pipe cross-sectional area.
- Water hammer effects from sudden valve closures in pipes, generating pressure waves that travel through the fluid.
- Power transmission through pipes using pressure and head from fluid flow.
Combined & Eccentric Footing
An eccentric footing consists of two isolated footings connected by a structural strap or lever. This allows the footings to behave as a single unit while transferring both axial and moment loads from columns. Eccentric footings are more economical than combined footings when the soil can support higher pressures and the column spacing is large. They are used when spreading a footing to align load and area centroids is not possible, such as when a column is near a property boundary.
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2) Flow through pipes connected in parallel was also examined. The total flow (Q) equals the sum of individual pipe flows (Q1 + Q2). If pipe characteristics are the same, head loss will be equal in each pipe.
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This document discusses fluid flow in pipes. It defines the Reynolds number and explains laminar and turbulent flow regimes. It also covers the Darcy-Weisbach equation for calculating head losses due to pipe friction. The friction factor is determined using Moody diagrams based on Reynolds number and relative pipe roughness. Examples are provided to calculate friction factor, head loss, and flow rate for different pipe flow conditions.
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- Head losses calculated using Darcy-Weisbach and minor loss equations
- Friction factors determined from Moody diagrams for laminar and turbulent flows
- Total head loss in a pipe system equals major losses in pipe sections plus minor losses from fittings
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When fluid flows through pipes, there are two types of losses - minor and major losses. Major losses are due to friction along the pipe walls and are quantified using the Darcy-Weisbach equation. The Darcy friction coefficient f depends on both the Reynolds number Re and the relative roughness κ/D. Plotting log f versus log Re for different pipes allows identification of the three sub-regions of turbulent flow - smooth, rough, and transitional - and how f varies in each sub-region.
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The document discusses column behavior under different loading conditions. It presents the load and moment equations for columns under eccentric loading, and describes three failure cases: 1) pure axial load/crushing failure, 2) balanced failure, and 3) pure flexural failure. Equations are derived for the load-carrying capacity and moment capacity based on the stress-strain relationships of concrete and steel.
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