MUMBAI: The Union government has sought the backing of the Maharashtra government to waive off stamp duty – estimated to be some Rs250-300 crore – while de-merging the non-core assets of Shipping Corporation of India Ltd (SCI) into a separate company ahead of the planned privatisation of the national carrier. The listing of the non-core … Read more
Cracking in reinforced concrete members is attributable to various causes, particularly: Factors Influencing Crack-widths
Here is a simplified flowchart for the design of a box culvert: Note that the above flowchart is a simplified version of the box culvert design process and should be used as a reference only. The design process may vary depending on the specific project requirements, site conditions, and applicable codes and standards. It is … Read more
There are several software programs available for designing steel connections, each with its own features and advantages. Here are some popular software programs used for steel connection design: RAM Connection: RAM Connection is a powerful software for the design and analysis of steel connections. It offers a range of connection types, including bolted, welded, and … Read more
The combinations of actions to be taken into account in the relevant design situations should be appropriate for the serviceability requirements and performance criteria being verified. a) Characteristic combination: The characteristic combination is normally used for irreversible limit states. b) Frequent combination: The frequent combination is normally used for reversible limit states. c) Quasi-permanent combination: … Read more
Site Information Required For the Tests Different Types of Tests Integrity Test The commonly used sonic methods, vibration methods, sonic logging techniques, etc, have been tried within the last 15-20 years in different parts of the world. However, the methods based on the One Dimensional Stress Wave approach known as Sonic Integrity Testing, Low Strain … Read more
The first digit relates to the ultimate strength of the material, whilst the second is the ratio of yield stress to ultimate strength. Thus grade 4.6 bolts have an ultimate material strength of 400N/mm2 and the yield (or proof) stress is 60% of the ultimate strength. What is black’bolts? 4.6 grade bolts without corrosion protection … Read more
In India, some bridge engineers have doubts on point of application of horizontal load. Some people consider the point of application of longitudinal and transverse load at the bearing level. Longitudinal force : The longitudinal forces shall be considered as acting horizontally through the knuckle pins in case of bearings having rocking arrangement or through … Read more
Jet Grouting (Horizontal): – An efficient and versatile technical solution for tunnelling in different soil, usually with high granulometry, the presence of intense water flow and high hydraulic gradient. The construction of the Main tunnel and Escape Tunnel through quaternary deposits, consisted of silty-clayey soil with gravels, pebbles, cobbles and occasionally boulders. Horizontal Jet Grouting … Read more
I have a doubt regarding assuming pile cap thickness. There are two theories Beam theory and truss theory. In truss theory, the empirical formula for pile cap depth, when the pile diameter less than 550mm is, D= 2 × dp+100 mm , Where D is the pile cap depth and dp is the pile diameter … Read more