G&G Structures - MODERNIZATION

There are numerous instances in an elevator modernization project when structural engineering may be needed. Alterations code sections (ASME A17.1) outlines where structural engineering may be beneficial or required. In California, all conveyances (elevators, escalators, dumbwaiters, etc.) must have full structural engineering design for general acute care hospitals (OSHPD) and for public schools (DSA). Sometimes structural engineering can be as simple as a preparing a layout drawing of the equipment and a few sheets of structural calculations. Typical services requested include the following:

♦ Preparation of submittal & installation setup drawings
♦ Field survey to investigate the existing conditions
♦ Preparation of submittal package for California Hospitals
♦ Preparation of submittal package for California Schools
♦ Engineering report to document code compliance
♦ Design layout of traction machine replacement including custom machine adapter, bridging, or blocking
♦ Design layout of geared or gearless machine replacement including elevated blocking
♦ Rope brake additions for ascending car over-speed & unintended car movement protection
♦ Controller and auxiliary equipment anchorage
♦ Guide rail system evaluation, analysis, and design for car and counterweights
♦ Elevator car and component structural analysis when car is over its rated weight