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They are differentiated according to the three basic types of movement: axial, angular and lateral expansion joints. Expansion joints have usage in various sectors, like energy production, paper industry, chemical industry, water treatment, oil and gas. Expansion joints can be used wherever thermal movements or vibration occurs in pipelines.
Metal expansion joints have to be designed according to rules laid out by EJMA, for fabric expansion joints there are guidelines and a state-of-the-art description by the Quality Association for Fabric Expansion Joints. Pipe expansion joints are also known as "compensators", as they compensate for the thermal movement.
In April 2019, Forest department of Bangladesh Government filed a case against GPH Ispat Limited authorities accusing them of destroying the environment by cutting 15,175 ft 3 hills and constructing makeshift dams in a protected area, and by stopping the flow of water in the area, changing course and character of the natural stream and damaging biodiversity that caused heavy financial loss. [15]
The first ever steel mill was established in 1952 by the H Akberali Group of Industries as the "Bangladesh Steel Re-rolling Mills (BSRM)". Located at Nasirabad, Chittagong, the plant formed re-enforcing bars and structural sections.
Slip joints are common under conditions where temperature changes can cause expansion and contraction that may overstress a structure. These are generally referred to as expansion joints . Bridges and overpasses frequently have sliding joints that allow a deck to move relative to piers or abutments.
The Bangladesh Steel Re-Rolling Mills Ltd., commonly known as BSRM, is a Bangladeshi steel manufacturing company based in Chittagong. It is the largest construction steel manufacturer company in Bangladesh.
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