Accommodation of the forces leads to the third aspect of structural engineering. Engineers must analyze the transmission of the loads acting upon their creation, that these forces ultimately channel to the structure's solid foundation and the ground, and that the structure remains firmly intact. In order to properly direct a force, the structural engineer takes part in the fourth concept of structural engineering the selection of proper building materials. And finally, the structural engineer, in his or her design of a building, bridge, or tower, must proportion all the physical elements involved in the making of the structure to the proper dimensions for resisting and transmitting loads safely and efficiently, thus ensuring the long life of the structure. Nearly all of this work involves the skeleton of the structure its girders, supports, and the concrete it is composed of.
Structural engineering is composed of more than five aspects, however.
Much of what is done in this field is accomplished during research. Society today is becoming highly aware of public safety and the environment, opening the doors for structural engineers to investigate how to make better buildings through the use of new materials and construction techniques. They also explore into the realms of lighting and electrical engineers in dealing with greenhouses. Other areas of research include designing equipment and sensors to measure structural vibrations, aspects of underground and underwater construction, and robotics within structures. Outside of research, the structural engineer is responsible for the safe and ethical construction of his or her projects.