Grade Beam is a beam that is built at Grade level (earth level) mostly used to buildings with piles and to connect pile caps to each other. Grade Beams are reinforced concrete members which are constructed to act as horizontal ties between footings or pile caps.
Grade Beam Design for Brace Frame Based on ACI 318-05 Read More »
While a load on the soil at point A will certainly affect the soil deflection at point B, most engineers feel that Winkler springs are reasonable engineering approximation for most structures (with modifications to ensure no soil tension). A true analysis would need to consider the soil as a 3D continuum; that type of analysis
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A masonry wall is a wall made from materials which have traditionally been cemented together with the use of mortar. Masonry walls can be used as structural walls in buildings, and they can also be utilized to create barriers between property lines or different areas on a property.
Basement Masonry Wall Design Based on ACI 530-05 Read More »
Basement walls and design differ from other structural walls because in the basement inside of wall have living space and earth filling on the outside of wall i.e. why these are structurally designed as retaining walls to overcome the lateral pressure of outside filling of soil/earth.
Basement Concrete Wall Design Based on ACI 318-05 Read More »
Whether your basement columns and beams are made of steel or wood, they were designed to support the weight of the home above. These columns literally support tons of weight from above so you can’t just move move a basement column without some thought. Take a look at a four inch diameter steel column for example
Basement Column Supporting Lateral Resisting Frame Based on CBC 2001/ ACI 318-05 Read More »
Wall pier design is performed at the top and bottom of each pier. Thus, for. wall pier P2 at the Roof level, design is performed at the top and bottom of. the door opening. No design is performed near the mid height of the door.
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Reinforced Concrete Tilt-Up Wall Panel Analysis and Design (ACI 551) Tilt-up is form of construction with increasing popularity owing to its flexibility and economics. Tilt-up concrete is essentially a precast concrete that is site cast instead of traditional factory cast concrete members.
Tilt-up Panel Design based on ACI 318 – 02 Read More »
In suspension bridges, large main cables (normally two) hang between the towers and are anchored at each end to the ground. … The tension on the main cables is transferred to the ground at the anchorages and by downwards compression on the towers.
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Reinforced concrete special moment frames are used as part of seismic force-resisting systems in buildings that are designed to resist earthquakes. … Special proportioning and detailing requirements result in a frame capable of resisting strong earthquake shaking without significant loss of stiffness or strength.
Seismic Design for Special Moment Resisting Frame Based on ACI 318-02 Read More »
Loads on the RCC Slab. Self-weight= concrete unit weight * Volume of concrete. = 24 * 0.1= 2.4 KN/m2 … Loads on the Beam. Self-weight= concrete unit weight* beam width*beam height. =24 * 0.28*0.25= 1.68 KN/m. … Compute Applied Moment. Assume partial fixity of columns. … Geometry of the Original Section.
Concrete Slab Capacity Based on ACI 318-02 / CBC 2001 Read More »
In structural engineering, a shear wall is a vertical element of a system that is designed to resist in-plane lateral forces, typically wind and seismic loads. In many jurisdictions, the International Building Code and International Residential Code govern the design of shear walls.
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In structural engineering, a shear wall is a vertical element of a system that is designed to resist in-plane lateral forces, typically wind and seismic loads. In many jurisdictions, the International Building Code and International Residential Code govern the design of shear walls.
Shear Wall Design Based on ACI 318-95 / CBC 2001 Read More »
Punching shear is a type of failure of reinforced concrete slabs subjected to high localized forces. In flat slab structures this occurs at column support points. The failure is due to shear. This type of failure is catastrophic because no visible signs are shown prior to failure
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Post-Tensioned Designer is a computer program for the design and analysis of linear post-tensioned concrete floor systems. The program is developed around the robust computational core of two popular programs – PTData.Net and PTPlus.Net, which many engineers have come to trust over the years for its accuracy and flexibility.
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Torsion on structural elements may be classified into two types; statically determinate, and statically indeterminate. … Shear stresses due to torsion create diagonal tension stresses that produce diagonal cracking. If the member is not adequately reinforced for torsion, a sudden brittle failure can occur.
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Mechanical Equipment Anchorage to Wood Roof, most often made of cedar, pressure-treated pine, redwood, or cypress, come in two main types: shingles and shakes. Shingles are cut by machine so they tend to have smoother edges, and be very consistent in size and shape.
Mechanical Equipment Anchorage to Wood Roof Based on NDS 1997 Read More »
Lightweight concrete is a mixture made with lightweight coarse aggregates such as shale, clay, or slate, which give it its characteristic low density. … It is being increasingly used to build sleek foundations, and has emerged as a viable alternative to regular concrete.
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The shear friction concept assumed that such a crack is formed when concrete will be cast at different times and that reinforcement is provided across the crack to resist relative displacement along it. The reinforcement in tension provides a clamping force, Avf x fy across the crack faces
Shear Friction Reinforcing Design Based on ACI 318-02 Read More »
A lap splice is the most common method of creating a single structural entity from two rebar segments. The lap splice, as the name suggests, is created by overlapping two lengths of rebar, then wiring them together
Splice of Reinforcement Based on ACI 318-02 Read More »
Coupling beams are beams typically added to a structure to improve its lateral force resistance. They bridge two separate, independent items together (like shear walls) to add stiffness to the overall system. They are usually short and thick, similar to deep beams.
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