513 EM 385-1-1 Chapters 23-29

Sections

Chapter 27: Concrete, Masonry, Roofing, and Wood Construction

This chapter delves into critical aspects of construction safety and procedural standards for working with concrete, masonry, roofing, and wood.

This chapter emphasizes the procedural standards for working with concrete, masonry, roofing, and wood.

It covers standards for the inspection and proper handling of construction materials and structures from the initial phase of construction to the finalization of projects. It includes specific requirements for formwork, shoring, masonry construction, and the use of personnel hoists and elevators.

It assigns duties to Competent Persons (CPs), Qualified Persons (QPs), and Registered Professional Engineers (RPEs) and stresses the need for detailed planning and execution of construction activities, including the development of Activity Hazard Analyses (AHAs) and minimum plan requirements for erection and removal of formwork, shoring, and the safe erection of masonry and precast concrete.

The guidelines cover managing potential hazards associated with construction loads, establishing limited access zones to protect workers, reshoring for structural support, and specific practices for roofing and wood construction to prevent accidents.

The chapter also highlights the necessity of continuous inspection, adherence to design specifications, personal protective equipment (PPE), safe access ways, and proper storage and handling.

27-1. References.

EM 385-1-1 Paragraph 27-1.

27-1. References.

27-2. Definitions.

EM 385-1-1 Paragraph 27-2.

27-2. Definitions.

a.  Construction Loads.  Those loads imposed on a partially completed or temporary structure during and as a result of the construction process.  Construction loads include, but are not limited to, materials, personnel, and equipment imposed on the temporary or permanent structure during the construction process.  (27-2.a)

b.  Limited Access Zone.  An area alongside a masonry wall, which is under construction, and which is clearly demarcated to limit access by employees.  (27-2.b)

c.  Reshoring.  The construction operation in which shoring equipment (that is, reshores or reshoring equipment) is placed as the original forms and shores are removed. The reshoring supports partially cured concrete and construction loads. (27-2.c)

d.  Restricted Zone.  The area on each side of a wall subject to the effect of a masonry wall collapse, measured by a horizontal distance equal to the height of the constructed wall plus 4 feet, measured at right angles to the wall, and continuing for the length of the wall plus a minimum of 4 feet beyond the ends of the wall.  (27-2.d)

e.  Shore. A supporting member (for example, false work to support an elevated concrete deck pour) that resists a compressive force imposed by a load.  See OSHA Technical Manual (OTM) Section V: Chapter 2, Section VII Shoring Types for examples of shore types.  (27-2.e)

f.  Tremies. Pipe through which concrete may be deposited under water.  (27-2.f)

g.  Vertical Slip Forms.  Forms which are jacked or hoisted vertically during the placement of concrete.  (27-2.g)