One of the major manufacturers of steel systems is the Butler Steel Construction Company. They create different systems and types of steel components such as structural framing, roofing, and wall systems. Within these categories, they have various designs that can be customized for many types of projects. Example of these are shown in Figures 3.22 through 3.27.
Figure 3.22The Widespan structural system allows for maximizing the functionality and productivity of the building’s interior space. The shape of columns can be specified based on the project. The structure is expandable and can be added to over time.
Figure 3.23The Landmark 2000 structural systems combines solid-web primary frames, factory-punched Truss PurlinXT™ secondary structural members, and rod bracing to form a long-bay framing system that can span up to 60 feet. The columns can be placed up to 60 feet from each other.
Figure 3.24Multi-story structural systems utilize systems construction to create a cost-effective, high-performance, multistory building. In multistory system design, steel can be used solely as a structural system or combined with other metal wall and roofing components.
Figure 3.25A non-self-supporting steel frame needs interaction with other construction elements such as precast concrete or masonry infill. A self-supporting steel frame on the other hand is stable and resists lateral loads. Here you see a combination of load bearing walls with steel interior walls and steel roofing system.
Figure 3.26Storage buildings can be of any width or length, based on 5-foot increments and single or multistory. The benefits of steel framing in storage design is the maximum number of door openings that the structure offers. Also, clear-span interior, fast erection, durability, and low maintenance are some of the design criteria of such a system.
Figure 3.27 A A metal construction system is used to create small spaces.
3.27 BA metal construction system is used to create small spaces.
Figure 3.28A conventional metal structure is ready to be completed with metal systems encompassing all conventional steel products — ranging from wide-flange beams and bar joists to pipes and tubes. This production is a good example of the kit-of-parts approach where all parts are standardized.
Figure 3.29There are different types of roofing systems produced in the manufactured steel plants. The roofing design varies depending on the thermal, day lighting, and remodeling requirements. This is a detail of the MR-24 roofing and a clipping system that allows the metal panels to move responding to the temperature changes.
Figure 3.30Wall systems can also be customized according to the need and usage of the project. These are examples of Therma-walls used in commercial or industrial building, from architectural applications to cold-storage facilities.
Other case studies
Heavy Structures company is a division of Butler Buildings specializing in prefabricated steel components for very large and complex building projects.
For very large projects where no interruption in space is allowed space-framing can be used. A space-frame or space structure is a light-weight truss system with a uniform geometric matrix that is relatively strong and transmits and spreads the structural tensile and compressive loads. (Fig 3.31).
Figure 3.31Jacksonville Naval Air Station P302V Maintenance Hangar. To meet the US Navy’s demand for multiple openings for various aircraft, clear spans of 455 feet and 428 feet were necessary at the front of the hangar. To achieve these record-setting clear spans, heavy structures utilized three-story tall box trusses to design the hangar. During erection, these robust trusses were assembled in sections on the ground then lifted into place with the entire system bearing on temporary shoring towers. The structure also supports multiple overhead cranes for maintenance of the aircraft. The 3-D structural design by Heavy Structures proved to be over 25% more efficient than the nearest conventional solution. The size, complexity and economy of this successful project demonstrates the capabilities and advantages Heavy Structures has to offer.
