To view a pdf of the Proposal click here.
To view a pdf of the revised Proposal click here.
A situation has arisen where the use of structural steel has become an unfeasible option for the structural system of the BBH Building. It is to be assumed that this change was made after the structural system had already been designed in steel. The owner has requested that the design professionals keep the original layout and look of the building as close as possible to the original design.
Depth: Concrete Redesign
The alternative structural material selected for the BBH Building will be reinforced concrete. The floor system will consist of flat slabs with drop panels and/or one way slabs with interior beams. In order to resist lateral loads a concrete moment frame will be designed. This type of system will cause the least amount of impact on the existing layout of the building considering the original designed was predominantly a steel moment frame. A square foot cost analysis will be done to compare the existing steel structure to the propose reinforced concrete structure. The effects on the schedule will be studied later in one of the breadth topics.
Breadth 1: Façade Study
A precast masonry system will replace the existing façade design. This change will affect the detailing and constructability of the façade. Therefore a study will be done to understand how the new façade will change the way the building will need to be insulated, waterproofed, and connected to the structure.
Breadth 2: Construction Management
The purpose of this breadth is to create a schedule based on the changes that were made in the above depth and breadth. Both of these changes will affect the critical path and will need to be sequenced in a way to better control the flow of the project.