Transfer station station combined belt splice station, take up and drive in one structure. A jib crane is included to simplify future maintenance of the drive and head pulley.

Underground Conveyor Transfer Structure,Rendering from Tekla model

Client needed to replace an existing pump support platform with one that would allow easy access for maintenance and replacement. The structure also had to be easy to visually inspect for an annual structural condition assessment.

Pump Support
by larryd
on Sketchfab

Structural engineering and design for several stair systems used on this bridge in Portsmouth, NH. Project scope included conventional stair tower and alternating tread stairs.

Portsmouth, NH Bridge

Process building for bulk material handling plant.

Process Building
by larryd
on Sketchfab

This beam and column are part of a critical piece of material handling equipment. The beam forms the support for a 140 foot high tower that in turn supports material handling conveyors.

Time and lack of maintenance had degraded the structure to the point where the client had recommendations to completely remove and replace the entire structure. This would have resulted in significant cost as well as operational downtime (also a significant cost).

Working closely with the plant engineers we designed numerous other repairs that extended the life of the structure at a fraction of the remove and replace option cost.

The below pictures show one of the corroded beams and a column before the repairs. The column and base plate repair design doubled as temporary support of the column without extra shoring as well as a permanent fix to the column and gusset plates.

Rusted Beam Before Repair

Rusted Column Before Repair

We provide structural calculations for stair fabricators using advanced structural analysis software to check multiple design concepts quickly and efficiently. For certain projects our advanced analysis capabilities such as vibration checks may help lower costs by using lighter materials when conventional methods would over design.

We can also work with your BIM models to minimize the amount of drawings that need to be exchanged.

This project required the evaluation of an existing roof system to support new HVAC equipment loads. The roof consisted of steel joists and an 86 foot long fabricated truss in the gymnasium. Additional design deliverables included modification to existing equipment supports and additional bracing to support new equipment.

As part of our focus on steel fabricators we provide comprehensive connection design services. From simple steel moment connections to complex connection design requiring finite element analysis we can meet all your needs for professional engineering services.

We use the sophisticated connection design software to meet the tight project timing and cost effectives steel fabricators demand in today’s competitive environment.

The below picture shows a typical steel connection design.

One of our key focus areas is supporting steel fabricators with structural design services. We provide structural engineering for field fixes, connection design and any other miscellaneous design engineering that is required.

The below picture shows a simple field fix.

Our client was responsible for designing several large industrial structures in a very high seismic zone. We provided engineering consulting services that consisted of detailed structural engineering for design and member size optimization.

This 560 foot long steel truss system was designed to meet rigorous seismic requirements.

Video of a truss analysis showing deflection from lateral seismic loads. Total length of the truss system is over 500 feet.

Our client was responsible for verifying the overall integrity of a stainless steel truss framing system that was designed by a third party. Mercury Engineering was retained to provide structural engineering in support of evaluating the deflections and adequacy of the overall structural system for compliance with local building codes.