Earthquakes

earthquake

Earthquakes Outline —  What is Earthquake —  Types of Seismic Waves —  Effects of Earthquakes —  Site Selection —  Building Construction Materials —  Building Planning | Earthquake Resistant Buildings —  Earthquake Resistant Techniques —  Summary and Conclusion What is Earthquake? Earthquake is a sudden tremor or movement of the earth’s crust, which originate naturally at … Read more

Fundamentals of Prestressed Concrete Bridge (with solved example)

pretensioning

Fundamentals of Prestressed Concrete Bridge (with solved example) Introduction: In prestressed concrete, a prestress force is applied to a concrete member and this induces an axial compression that counteracts all, or part of, the tensile stresses set up in the member by applied loading.  In the field of bridge engineering, the introduction of prestressed concrete … Read more

Structural Detailing and Bar Bending Schedule

Detailing of Steel

Structural Detailing and Bar Bending Schedule Detailing Functions design and design requirements cutting and bending of the reinforcement placing and wiring in position maintaining position of reinforcement pre-assembly of cages and mats concreting measurements of quantities economy in the use of steel Requirements Of Detailing simple for fabrication and placing the crack width must be … Read more

Repair of Concrete Complete Text

Repair of Concrete Repair of Concrete Introduction This guide first discusses Reclamation’s methodology for concrete repair. It then addresses the more common causes of damage to Reclamation concrete, including suggestions of the types of repair methods and materials most likely to be successful in repair of concrete damage resulting from those causes. Finally, the guide … Read more

What is Ferro cement?

Ferro cement

What is Ferro cement? Definition “Ferro cement is a type of thin wall reinforced concrete, commonly constructed of hydraulic cement mortar, reinforced with closely spaced layers of continuous and relatively small size wire mesh. The mesh may be made of metallic or other suitable materials” -ACI Committee 549, 1980 Cement mortar is reinforced with layers … Read more

Unbonded Post-Tensioning System Technology in Building Construction

Unbonded monostrand tendon

Unbonded Post-Tensioning System Technology in Building Construction Introduction During the last three decades, unbonded post-tensioning has progressively become the predominant construction choice for commercial concrete buildings in the United States. The utilization of unbonded tendons is now standard practice for concrete structures. Because of their excellent performance record and their economical and versatile application, the … Read more

Fiber-Reinforced Concrete

Fiber Reinforced Concrete

Fiber-Reinforced Concrete Historical Development Fibers have been used to reinforce brittle materials from time immemorial, dating back to the Egyptian and Babylonian eras, if not earlier. Straws were used to reinforce sun-baked bricks and mud-hut walls, horse hair was used to reinforce plaster, and asbestos fibers have been used to reinforce Portland cement mortars. Research … Read more

Concrete Basics & The need for Joints

Concrete Basics & The need for Joints

Concrete Basics & The need for Joints What Causes Concrete To Crack? Many surface cracks in concrete slabs are not a result of structural failure of the slab but are formed by uncontrolled shrinkage of the concrete. These types of cracks can be avoided. Shrinkage cracks are the result of the concrete volume decreasing as … Read more

Civil PowerPoint Presentations | Civil ppts

Completed pile cap rebar framing

Civil Engineering PowerPoint Presentations (Civil ppts) 1. Building Technology Building Technology as the name suggests deals with how technology is used in construction and infrastructure industry. This branch basically deals with construction methodologies and building materials that can enhance the function and performance of the structures. You can browse through various Building Technology ppts and … Read more