Draft Details
- Design of volumetric modular structures (New S...
- Z251 :26
- DRAFT STANDARD
- Legal Notice for Draft Standards
- Preface
- 0 Introduction
- + 1 Scope
- 1.1 Inclusions
- 1.2 Applicability
- 1.3 Exclusions
- 1.4 Terminology
- 2 Reference publications
- + 3 Definitions and abbreviations
- 3.1 Definitions
- 3.2 Abbreviations
- + 4 General
- 4.1 Code requirements
- 4.2 General requirements
- 4.3 Technical requirements
- + 5 Structure
- + 5.1 Structural configurations
- + 5.1.1 Design of connections
- 5.1.1.1 General
- 5.1.1.2 Intermodular connections (between modul...
- 5.1.1.3 Connections between modules and lateral...
- 5.1.1.4 Connections between modules and foundat...
- + 5.1.2 Components and assemblies in modular unit...
- 5.1.2.1 General
- 5.1.2.2 Beams, floors, and ceiling assemblies
- 5.1.2.3 Columns
- 5.1.2.4 Wall and bracing assemblies
- + 5.1.3 Types of volumetric modular units
- 5.1.3.1 Non-lateral force-resisting modular uni...
- 5.1.3.2 Lateral force-resisting modular unit
- Figure 2 a)
- Figure 2 b)
- Figure 2 c)
- + Figure 2 d)
- + 5.1.4 Types of volumetric modular systems
- 5.1.4.1 Structural systems for modular building...
- 5.1.4.1.1 General
- 5.1.4.1.2 Stacking modular system — System Type...
- 5.1.4.1.3 Mixed modular system — System Type B
- 5.1.4.1.4 Exoskeleton structural modular system...
- Figure 3 a)
- Figure 3 b) i)
- Figure 3 b) ii)
- + Figure 3 c)
- 5.1.4.1.5 Special considerations for stiff modu...
- 5.1.4.2 Innovative or other solutions
- + 5.2 Loads
- 5.2.1 General
- 5.2.2 Structural loads
- + 5.2.3 Lifting
- 5.2.3.1 General
- 5.2.3.2 Design loads for lifting
- 5.2.4 Supports
- + 5.2.5 Transportation loads
- 5.2.5.1 General
- 5.2.5.2 Restraints
- 5.2.5.3 Dynamic loads during transportation
- 5.2.6 Erection
- + 5.3 Design provisions
- 5.3.1 Foundation
- 5.3.2 Diaphragms
- + 5.3.3 Limit states
- 5.3.3.1 General
- 5.3.3.2 Fatigue
- 5.3.3.3 Serviceability
- 5.3.3.4 Deflection
- 5.3.3.5 Vibration
- 5.3.4 Resistance factors for innovative compone...
- 5.3.5 Alignment tolerances
- 5.3.6 Performance-based design
- 5.4 Analysis procedure
- + 6 Building services
- + 6.1 General
- 6.1.1 Modular considerations
- 6.1.2 Penetrations
- 6.1.3 Protection of building services during tr...
- + 6.2 Plumbing
- 6.2.1 Design considerations
- 6.2.2 Matelines
- 6.2.3 On-site integration of modular plumbing s...
- 6.2.4 Accommodating excessive tolerances in pip...
- 6.2.5 Thermal expansion and contraction of plum...
- 6.2.6 Seismic design of building services
- 6.2.7 Drainage design and ceiling space constra...
- 6.2.8 Flexibility of piping connections for mov...
- 6.2.9 Cross-jurisdictional transport and water ...
- 6.2.10 Water leakage protection
- 6.2.11 Expansion provisions for multi-storey st...
- 6.2.12 Post-delivery access and maintenance
- + 6.3 Mechanical systems
- 6.3.1 Factory prefabrication of HVAC systems
- 6.3.2 Test documentation requirements
- 6.3.3 HVAC system sequencing and module set ord...
- 6.3.4 Acoustic isolation
- 7 Environmental separation – Matelines and othe...
- 8 Fire protection
- 9 Energy efficiency design considerations for m...
- + 10 Manufacturing
- 10.1 General
- + 10.2 Tolerances
- 10.2.1 General
- 10.2.2 Roles and responsibilities
- 10.2.3 Design documentation
- + 10.2.4 Tolerance design
- 10.2.4.1 Factors affecting dimensional variabil...
- + Table 2
- + 10.2.5 Specification of tolerances
- 10.2.5.1 Critical tolerances
- 10.2.5.2 Other important tolerances
- 11 Quality assurance
- 12 Documentation
- Annex A (informative)
- + A.5 Structure
- + A.5.1 Structural configurations
- + A.5.1.2 Components and assemblies in modular un...
- A.5.1.2.2 Beams, floors, and ceiling assemblies...
- A.5.1.2.3 Columns
- + A.5.1.4 Types of volumetric modular systems
- A.5.1.4.2 Innovative or other solutions
- + A.5.2 Loads
- + A. 5.2.1 General
- A. 5.2.1.1 General
- A.5.2.1.2 Manufacturing
- + A.5.2.3 Lifting
- A.5.2.3.2 Design loads for lifting
- + A.5.2.5 Transportation loads
- A.5.2.5.1 General
- A.5.2.5.3 Dynamic loads during transportation
- A.5.2.6 Erection
- + A.5.3 Design provisions
- + A.5.3.3 Limit states
- A.5.3.3.5 Vibration
- A.5.3.5 Alignment tolerances
- + A.5.3.6 Performance-based design
- A.5.3.6.1 General
- A.5.3.6.2 Performance-based seismic design
- Table A.1
- Table A.2
- + A.5.4 Analysis procedure
- A.5.4.1 General
- A.5.4.2 Direction of loading
- + A.5.4.3 Modelling considerations
- A.5.4.3.1 General
- A.5.4.3.2 Irregularity
- A.5.4.3.3 Vertical ground motion
- + A.6 Building services
- + A.6.1 General
- A.6.1.1 Modular considerations
- + A.6.1.3 Protection of building services during ...
- A.6.1.3.1 Plumbing
- A.6.1.3.2 HVAC assemblies
- + A.6.2 Plumbing
- A.6.2.1 Design considerations
- + A.6.2.2 Matelines
- A.6.2.2.1 General
- A.6.2.2.2 Co-ordination with other trades at ma...
- + A.6.2.3 On-site integration of modular plumbing...
- A.6.2.3.1 General
- A.6.2.3.2 Selection of connection methods and p...
- A.6.2.3.3 Construction tolerances between modul...
- A.6.2.9 Cross-jurisdictional transport and wate...
- + A.6.3 Mechanical systems
- + A.6.3.1 Factory prefabrication of HVAC systems
- A.6.3.1.1 General
- A.6.3.1.2 Co-ordination of HVAC routing with mo...
- + A.7 Environmental separation – Matelines and ot...
- A.7.1 Heat transfer
- A.7.2 Air leakage
- A.7.3 Precipitation
- A.7.4 Sound transmission
- + A.7.5 Façade
- A.7.5.1 General
- + A.7.5.2 Constructability
- A.7.5.2.1 Façade junctions
- A.7.5.2.2 Matelines
- A.7.6 Temporary environmental protection
- A.7.7 Loads
- A.8 Fire protection
- A.9 Energy efficiency design considerations for...
- + Annex B (informative)
- B.1 General
- B.2 Site planning considerations
- + B.3 Module design considerations
- B.3.1 Geometry-driven considerations
- B.3.2 Internal layouts
- B.3.3 Factory versus on-site work
- B.3.4 Connection details
- + Annex C (informative)
- C.1 General
- + C.2 Design considerations
- C.2.1 General
- C.2.2 Intermodular sanitary drainage continuity...
- C.2.3 Site connection to on-site sewage systems...
- C.2.4 Protection during shipping and installati...
- C.2.5 Access for inspection and servicing
- C.2.6 Jurisdictional and environmental complian...
- + Annex D (informative)
- D.1 Application
- D.2 Purpose of disassembly
- D.3 Deconstruction plan
1.1 Inclusions
a) structural design, including design for transportation, storage, and installation;
b) building services;
c) environmental separation;
d) fire protection;
e) energy efficiency design considerations;
f) manufacturing; and
g) architectural considerations.
1.2 Applicability
This Standard
a) provides requirements and guidance for the design and construction of volumetric modular buildings other than those indicated in Clause 1.3; and
b) supplements the building design and construction requirements in the codes applicable in the final installation location of the modular building.
1.3 Exclusions
This Standard does not apply to
a) one-storey manufactured homes; and
b) relocatable buildings.
Note: One-storey manufactured homes are covered by the CSA Z240 MH Series of Standards. Relocatable buildings are covered by UL 2600.
1.4 Terminology
In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the Standard.
Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.
Notes to tables and figures are considered part of the table or figure and may be written as requirements.
Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.
You may comment on any section of this document by clicking the “Submit Comment” link at the bottom of the relevant section.