Category : Construction Site Safety

Gym Bleacher Danger


gym-bleachers-osha-expert

Bryan J. Smith, PE, Construction Site Safety / OSHA Expert ::::

Case Description/Summary: The gym bleachers at a public school moved when a parent attempted to climb them. The accessible bleacher section slid closed and trapped the parent’s leg which caused the parent to fall and sustain injuries.

Expert Analysis: A field inspection of the incident location was performed, and a defect was found to exist in the accessible portion of the bleachers. When the accessible bleacher section was pushed to the open position, latches were supposed to lock it in place. However, the latches had not been installed correctly at the manufacturer. When the bleachers had first been installed in the gym by a professional bleacher installation firm many years prior to the incident, they took no corrective measures to fix the problem. The bleachers were also missing some of the critical latching hardware right from the start. A school maintenance worker discovered that some hardware had been missing long after the installation had been performed, and he asked the installer to send the missing hardware to him, which they did. Even after the missing hardware had been installed by the school maintenance department, the accessible section of bleachers would not latch and lock in the open position. As that accessible section was supported on rollers, it would roll freely in either the open or closed directions with the application of any bidirectional force – such as applied when a person tries to climb them.

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At Odds: A Disagreement Between a Subcontractor and a Homeowner


civil-engineering-expert

Bryan J. Smith, PE, CFEI, Construction Site Safety Consultant ::::

Case Description/Summary: A concrete subcontractor was hired by a homeowner to replace a concrete patio, driveway, sidewalk and steps at the home. Prior to completing the work, the homeowner decided that the subcontractor’s work was sub-par and threw the subcontractor off the property and withheld the final job payment. The subcontractor subsequently sued to retrieve the earned compensation. The homeowner counter-sued for defective and incomplete work.

Expert Analysis: A site survey was performed to document the site conditions at the property. Several shrinkage cracks were found in the concrete driveway. It was determined that the shrinkage cracks were due to missing contraction joints; however, the homeowner admitted that she threw the contractor off of the property just when he attempted to saw-cut the joints. One saw-cut joint was poorly aligned with the edge of slab at the rear patio. Three expansion joints were missing at front and rear sections of pavement. The homeowner alleged that in addition to these defects, the garage door lock could not be latched because of an incorrectly sloped apron and the interface between the new rear patio and the existing upper deck support post foundations were ugly.

A field evaluation report was issued, which determined that the homeowner was responsible for the missing contraction joints and the resulting cracks. The “ugly” concrete interface was due to incomplete work (due to being thrown off the job prematurely) and a misunderstanding between the parties on how these junctions were to be addressed. The issue with the garage door lock/latch was caused by an improperly adjusted latch mechanism and not by the concrete apron under the door. The missing expansion joints could be made retroactively for well under $1,000. The one poorly aligned saw-cut joint could be filled with caulking of the same color as the concrete to mitigate the aesthetic impact.

The homeowner hired an engineer and a contractor in an attempt to refute the submitted evaluation report. Their mutual recommendations included the removal and replacement of all the work performed by the subcontractor for a cost at over 35% of the original cost. No agreement was reached between the parties and a trial ensued. Trial testimony was offered and the jury decided in favor of the subcontractor.

Bryan J. Smith, PE, CFEI, is a Construction Site Safety Consultant with DJS Associates and can be reached via email at experts@forensicDJS.com or via phone at 215-659-2010.

Water Damage Mystery


Carpentry

Col. Bryan J. Smith, P.E., Construction Site Safety / OSHA Consultant ::::

Case Description/Summary: A recently constructed home began showing signs of water infiltration and damage. The plaintiff hired an architect to inspect the home in order to identify the cause(s) after the builder failed to take adequate measures to fix the problem. The architect identified problems with the roofing and stucco cladding.

Expert Analysis: An engineer was engaged on behalf of the carpenter subcontractor to defend against allegations made that inadequate carpenter workmanship contributed to and/or caused the stucco to leak.

The plaintiff’s expert argued that the wood stud framing and exterior oriented strand board (OSB) sheathing were installed defectively and that this allowed the stucco to crack and leak during rain events.

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“We Don’t Tie-Off on this Job!”


Steel Decking

Lt. Col. Bryan Smith, Construction Site Safety Consultant ::::

Case Summary: An ironworker with 31 years of experience had just started his first day of work installing second-floor steel decking at approximately 15’ above grade level (AGL). This ironworker intended to jump from a pile of wet steel floor decking, on which he was standing, onto some decking they had just previously placed. The ironworker’s foot slipped on the wet steel, causing him to fall from the second floor level. As a result of the fall, the ironworker sustained severe injuries. Fall protection equipment (FPE) was available to the ironworker, but after questioning his foreman about its use, the worker alleged that he was informed “We don’t tie-off on this job.” The ironworker then thought that if he demanded use of the FPE that he would be fired. He chose to forego the use of the fall protection equipment. The general contractor (GC) presented a job safety orientation briefing to the ironworker within the hour just preceding the incident and in it was the job requirement for use of FPE for all work at heights above six feet.

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