Concrete cast-in-place construction: Gang forms for cast-in-place (CIP) reinforced concrete deep foundation/basement walls. Gang forms are sets of large form panels attached and braced together and moved by crane from place to place to cast large sections of concrete. The vertical concrete wall at lower right was cast using the gang form in middle of photo, rotated 90 degrees. It has been lifted and rotated into its current position by the crane (see boom shadow) and cables attached to its top. It will probably be lifted and rotated to form the wall section to the immediate left of the one it recently placed. Another gang form is in place on the right wall against which the next wall section will be cast. Workers at lower right are finalizing the details at bottom of reinforcing steel in preparation for the form to be placed. Reinforcing steel is being erected for the far wall to follow the wall on the right. Still another gang form in the lower right corner of photo is still in place after casting the lower right corner of the basement. Ashley Terrace, Huron St, Ann Arbor, Michigan 2006

Concrete cast-in-place construction: Gang forms for cast-in-place (CIP) reinforced concrete deep foundation/basement walls. Gang forms are sets of large form panels attached and braced together and moved by crane from place to place to cast large sections of concrete. The vertical concrete wall at lower right was cast using the gang form in middle of photo, rotated 90 degrees. It has been lifted and rotated into its current position by the crane (see boom shadow) and cables attached to its top. It will probably be lifted and rotated to form the wall section to the immediate left of the one it recently placed. Another gang form is in place on the right wall against which the next wall section will be cast. Workers at lower right are finalizing the details at bottom of reinforcing steel in preparation for the form to be placed. Reinforcing steel is being erected for the far wall to follow the wall on the right. Still another gang form in the lower right corner of photo is still in place after casting the lower right corner of the basement. Ashley Terrace, Huron St, Ann Arbor, Michigan 2006