Installation of reinforcement and concrete Reinforcement technique

摘要

The regulations familiar until now on the installation of concrete and reinforcement - most recently gone into effect as exclusively valid for Germany as set forth in [1] - remain essentially unchanged, even now in light of the next heavily European-oriented generation of regulations. The - again "new" - standards for execution of concrete structures will then be DIN EN 13670:2011-03 [2] and DIN 1045-3:2012-03 [3]. There is accordingly no real need for drawing attention to basically new contents; instead, we should concentrate on regulations that have previously been somewhat "neglected." With regard to installation of concrete, for example, attention is drawn here to the openings through which the concrete is poured and to the vibration paths. Regulations and work aids, for example, are found in the DBV code of practice on concrete cover and reinforcement [4]. Such design aids are, unfortunately, only rarely provided and constructors are often hesitant to ask structural engineers for assistance. Attention is drawn here to the varying vibration times required for special concrete (e.g., lightweight-aggregate and steelfiber concrete).