SELF-JACKING SCAFFOLD FOR LARGE CYLINDRICAL TANKS

摘要

An apparatus and method for raising a self-jacking scaffold system including extending a jacking screw and jacking screw bracket axially upward, connecting a jacking screw bracket to an overhead tank bracket for a plurality of scaffold sections coupled to a jacking assembly, detaching a plurality of scaffold mounting brackets from a plurality of tank mounting brackets, raising the continuously coupled plurality of scaffold sections, and reattaching the plurality of scaffold mounting brackets to a plurality of tank mounting brackets. Noting the plurality of scaffold sections is continuously coupled proximate a circumference of a shell tank, the continuously coupled scaffold sections and tank mounting brackets provide stiffness to the tank shell to enable it to resist external loads and can be quickly moved and restored as required during tank construction.

主权项

1. A scaffold system comprising:
a plurality of scaffold sections comprising:
a first top frame element disposed proximate a circumference of a tank shell;a second top frame element disposed a radial distance from the first top frame element;a lower frame element disposed axially below the first top frame element;a space frame truss, wherein the space frame truss connects the first top, second top, and lower frame elements; a plurality of self-jacking assemblies comprising:
a jacking assembly frame;a jacking screw;a jacking screw bracket; andwherein each jacking assembly is coupled to at least one scaffold section; and at least one push-pull bar assembly coupled to at least one of the plurality of scaffold sections or at least one of the self-jacking assemblies,
wherein the at least one push-pull bar assembly comprises a pair of push-pull bars wherein a first end of a first push-pull bar and a first end of a second push-pull bar are coupled to a portion of the scaffold system and wherein a second end of the first push-pull bar and a second end of the second push-pull bar extend toward the tank shell and attach to a scaffold mounting bracket.