Base Isolation Method in Building Construction Conventional Construction Practice assumes Fixed Base Structures The Dynamic Characteristics of Fixed Base Structures are determined by the general characteristics of the structural system The Designer can only slightly adjust those Dynamic Characteristics As a matter of fact, most common Building Structures have unfavourable Dynamic Characteristics that result in(…)
There are five levels of environment exposure of concrete for which durability requirements of concrete depends. These are: Mild exposure Moderate exposure Severe exposure Very severe exposure, and Extreme exposure. These are the environments to which the concrete will be exposed during its working life. The durability requirement, like clear cover to reinforcement steel is(…)
DESIGN OF SLAB Slabs are generally designed on the assumption that they consists of a number of beams of breadth ‘one meter’. Effective Span The effective span of a simply supported slab shall be taken as the lesser of the following: Distance between the centers of bearings, Clear span plus effective depth Thickness of Slab(…)
Joints in liquid retaining concrete structures are important part of its design as joints are required as per size and position of structure.
Different types of buildings suffer different degrees of damage during earthquakes and the same has been studied here. 1. MUD AND ADOBE HOUSES: Unburnt sun dried bricks laid in mud mortar are called adobe construction. Mud houses are the traditional construction, for poor and most suitable in view of their initial cost, easy availability, low(…)
The objectives of structural design is to design the structure for stability, strength and serviceability. It must also be economical and aesthetic.
Design of a reinforced concrete section for shear is carried on in the following steps: (a) Determine nominal shear stress of concrete by using following formula: (b) Determine design shear strength of concrete, (Table 1 below). Table-1: Design Shear Strength of Concrete, (N/mm2) (c) Provide shear reinforcements as per requirement and convenience. Fig: Shear failure(…)
MULTISTOREY REINFORCED CONCRETE BUILDINGS DESIGN A large number of reinforced concrete multistoreyed frame buildings were heavily damaged and many of them collapsed completely in Bhuj earthquake of 2001 in the towns of Kachchh District (viz., Bhuj, Bhachao, Anjar, Gandhidham and Rapar) and other district towns including Surat and Ahmedabad. In Ahmedabad alone situated at more(…)