LOADS The reinforced concrete structures are designed to resist the following types of loads. (i) Dead loads (ii) Live loads or Imposed loads (iii) Wind loads (iv) Earthquake forces (v) Snow loads (vi) Shrinkage, creep and Temperature ellects. (vii) Other forces and effects DEAD LOADS Dead loads mainly due to self weight of structural members, … Read more
WORKING STRESS METHOD The stress strain curve of concrete is assumed as lingar from zero at the neutral axis to a maximum value at the extreme fiber Numbers determined by dividing ultimate stress by a factor of safety are used for concrete with a factor of safety of 3, and for steel with a different … Read more
STEEL REINFORCEMENT (a) Its tensile strength is high (b) It can develop good bond with concrete. (c) In coefficient of expansion is nearly same as for concrete. (d) It is easily available. SIGNIFICANCE FUNCTIONS OF REINFORCEMENT IN R.C.C The reinforcement in RCC serves the following different types of functions. (1) To resist the bending tension … Read more
PROPERTIES OF CONCRETE COMPRESSIVE STRENGTH GRADE OF CONCRETE The compressive strength of concrete is the characteristic compressive strength (/cel of 150 mm concrete cubes at the age of 28 days in N/mm². IS 456-2000 specifies the characteristic compressive strength of 150 mm cube at the age of 28 days in N/mm², as the Grades of … Read more
Types of Loads and deformation of the RCC Structures Types of loads and deformation that materials and structures can experience 1.compression Imagine pushing down on a spring that compression It’s when a object squeeze or push together 2. tension never stretch to a rubber band that tension it’s when an object is pulled apart. Like … Read more
ADMIXTURES Admixtures are added to the concrete before or during mixing, to modify one or more of the specific properties of concrete in the fresh or hardened states. IS:9103-1979 lays down the procedures for evolution of admixtures for concrete The different types of admixtures used are given below. 1. Accelerating Admixtures: These are added to … Read more
CONCRETE Concrete structures have become very common in Civil engineering construction Concrete has established as a universal building material because of its high compressive strength, its adoptability to take any form and shape and resistant to fire and corrosion with negligible maintenance cost. Concrete is very strong in compression but very weak in tension. Its … Read more
GRADES OF CONCRETE AND IT’S APPLICATIONS GRADES OF CONCRETE AND IT’S APPLICATIONS: In this lecture I am going to discuss about the various grades of concrete in which I will introduce you about grades of concrete 1.concrete cube test. 2. The groups of concrete grades 3. Types of concrete grades and their ingredient ratios 4. … Read more
BAR BENDING SCHEDULE OF TWO WAY SLAB FIRSTLY BAR BENDING SCHEDULE OF TWO WAY SLAB We are going to calculate the steel quantity for a two way slab before starting this procedure. We must know how to identify a two way slab. it to a ratio of longer spent to the short span of a … Read more
BAR BENDING SCHEDULE OF ONE WAY SLAB Additionally of BENDING SCHEDULE OF ONE WAY SLAB ; A one way slab is a type of R CC slap that’s supported by two opposite sites and is designed to primarily resist bending in one direction. One way slab are rectangular in shape with a thickness that varies … Read more