Structural Design Principles

(a) Basic Requirements:

(1) Project Co’s Structural Engineer-of-Record will be a professional engineer licensed to practice in the in the Province of British Columbia with demonstrated experience in undertaking the structural design of buildings similar in size and complexity to those proposed for the Facility.

(2) The Structural Design, including minimum design loads and general provisions and material specifications, will satisfy the more stringent requirements of the Building Code, other applicable or referenced design standards, loading criteria required by equipment suppliers or construction technique and the principles detailed in this Section.

(3) Prior to applying for a building permit for the Facility Project Co will have a qualified second Professional Engineer licensed in the Province of British Columbia perform a concept review satisfying the requirements of the Association of Professional Engineers and Geo-scientists of British Columbia Quality Management By-law.

(4) Project Co’s structural engineer-of-record will perform field review of the Construction at sufficient frequency, and review of the reports of the inspection and testing agencies appointed and paid by Project Co, to verify that the building structures of the Facility have been built in substantial conformance to the issued for construction structural drawings and any authorized amendments thereto. (b) Design Codes and Standards:

(1) The design, fabrication and erection of all structural systems for the Building and Parking Structure will conform to all applicable standards, including but not limited to:

(A) CSA Standard A23.3-04, Design of Concrete Structures for Buildings.

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1543463.20 Schedule 3 – Design and Construction Specifications (Surrey) EXECUTION COPY (D) CSA Standard S304-04, Masonry Design for Buildings (Limit State

Design).

(E) CSA Standard O86.1-01 (R2006), Engineering Design in Wood (Limit

State Design)

(F) CSA Standard S136-01, North American Specifications for the Design of Cold-Formed Steel Structural Members.

(c) Flexibility for Future Change of the Building: (1) General:

(A) Project Co will recognize that as a result of changes in treatment protocols, equipment and technology and programs over useful life of the Facility, the provision of a structural system with sufficient

robustness and flexibility to accommodate changes in usage of space and building service requirements is essential.

(B) The structural system proposed must be able to accommodate concentrated loading from equipment which may locally exceed the minimum specified live load but that will result in an average bay live load within the minimum specified live load without necessary field modifications of the building structure.

(C) The proposed structural system for the Facility should be capable of accommodating any future minor modifications to the structure without the use of welding or other processes which would produce noxious fumes, without the use of x-ray or nuclear isotope equipment and with a minimum of vibration to result in a minimum disruption to the ongoing operations of the Facility.

(D) For concrete structures the structural system will be able to accommodate holes at construction, or drilled at a future time, a minimum diameter of 250 mm at 300mm and 750 mm from the column face on any two opposite sides of any column and two 200 mm diameter holes at 600 mm at any location on the floor plate. (E) For steel structures the structural system will be able to

accommodate holes at construction, or drilled at a future time, a minimum diameter of 250 mm at 300 mm and 750 mm from the column on any two diagonal directions of any column and two 200 mm diameter holes at 600 mm at any location on the floor plate within the clear space between the beams, trusses or girders with minimum additional framing.

(1) The rules in this section deal with minimum load requirements as they relate to ongoing use and occupancy and future flexibility requirements of the Building. (2) The design of the structural system will comply with the minimum, superimposed

dead and live load requirements of the Building Code for all spaces, except as follows.

(A) Required design loads for all typical areas, including diagnostic areas, treatment areas, OR suites, meeting rooms and offices, etc.:

(i) Live Load (Basement and first storey) 4.8 kPa. (ii) Live Load (floors above first storey) 3.6 kPa. (iii) Superimposed dead load partition allowance 1.2

kPa.

(B) Required design loads for all mechanical and electrical equipment areas:

(i) Minimum live load (greater if required by Specific equipment): 7.2 kPa.

(ii) Minimum superimposed dead load (greater if required by equipment bases, floating Floors, etc.): 1.0 kPa.

(iii) Design loads must include allowance for specialized medical equipment, which may exceed either Building Code loading requirements or loading requirements specified above, including any requirements for vibration isolation pads. (e) Structural Analysis Method:

(1) Perform the structural analysis of the Facility generally in accordance with the provisions of Building Code, section 4.1.8.7; however, and as a minimum, it is essential that a Dynamic Analysis Procedure (Response Spectrum Acceleration Analysis) in accordance with the provisions of Building Code Section 4.1.8.12 be used.

(2) As a minimum, perform an Equivalent Static Force Procedure in accordance with Building Code Section 4.1.8.11 for the Parking Structure.

(3) The structural analysis of the Facility will include a three dimensional analysis accounting for all vertical and lateral loads together with all applicable load combinations, carried out using a computer software program consistent with Good Industry Practice.

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1543463.20 Schedule 3 – Design and Construction Specifications (Surrey) EXECUTION COPY (f) Deflection:

(1) The rules in this section describe acceptable limits for floor structure deflections for the Building.

(2) The structural system must comply with the requirements of the NBC

Commentary A: “Serviceability Criteria for Deflections and Vibrations” and in addition will meet the following deflection criteria:

(A) Floor Surfaces:

(i) Max. live load deflection: span/360. (ii) Long term dead + live load: span/240. (iii) Not to exceed 25 mm at any point. (B) Slab edge:

(i) Max. live load deflection: Span/500. (ii) Not to exceed 15 mm at any point. (g) Structural Systems

(1) This section sets out the rules for structural systems as they relate to the structural systems of the Facility.

(A) The structural system will consist of cast-in-place concrete flat slab or cast-in-place concrete two-way slab and beams or cast-in-place concrete slab on structural steel frame, either composite or non- composite.

(B) The preferred system for the suspended floor structures for the Facility consists of cast-in-place concrete, flat slab construction. Any other proposed floor systems must be tested for flexibility against the flat slab system for considerations of load sharing, floor to floor heights, ceiling space available for services, fire rating implications, and impact on overall building height.

(C) Lateral loads for the Facility will be resisted by ductile shear walls or bracing located at stair and elevator wall locations, or at the building perimeter, only. Shear walls or bracing may not be located within interior floor spaces.

(D) Lateral loads for the Parking Structure will be resisted by shear walls or bracing located close to the centre of the structure.

(E) A supplementary geo-technical investigation must be performed and used as a basis for the design of the superstructure, foundations and slabs-on-grade.

(F) The Facility will be designed as a Post-Disaster building in accordance with the Building Code.

(G) The Parking Structure will be categorized as “Normal” in accordance with the Building Code.