CIVIL II Building Bid Proposal

Owner’s Rep: Dr. Sheryl Staub-French

United Group Reps: Saad AboMoslim, Chief Engineer Mehrdad Ghods, Chief Estimator Danny Goncalves, Project Manager Zafar Manzour, Chief Planner

i

Executive Summary The following report presents the proposed design for the new Civil Engineering building which will be located adjacent to the existing CEME building. This design is developed by The United Group, a design, build firm that specializes in design-build-operate projects. This request for proposal calls for a 3-storey building that will house classrooms and computer labs as well as faculty and graduate offices. The design is required to be developed in 3D and be modeled in 4D. After visiting the proposed construction site, the conceptual design was developed by the Architecture/Engineering department with extensive input from the construction and operations department. The goal was to design an infrastructure that will not only meet its functional requirements but is also visually attractive and has low construction and maintenance costs. The latter was achieved by injecting constructability knowledge into the design phase. The outcome was a uniform horizontal and vertical building layout with standardised bay sizes and element dimensions. This standardization would improve productivity and work quality and would reduce both construction time and cost. The proposed site layout allows for optimal crane accessibility and provides suitable locations for material storage and prefabrication as well as the site trailers. Effort has been made to ensure minimal obstruction of traffic during the construction phase. The building site is divided into two zones which are connected via a construction joint. This set up will allow for the reuse of formwork and increases work continuity by reducing downtime as the crew moves from one zone to the next while waiting for the concrete to cure on the first zone. Dual zoning also resulted in an optimal overall schedule which was “resource driven” and did not incorporate/require fast-tracking. Total project duration was approximately 7.5 months excluding MEP work, exterior finishes and commissioning. Including these components would increase the duration to 11 months. Cost engineering was carried out for all aspects of the design. In other words cost sub-optimization was avoided by taking into account the effect of design on the construction and operations phases. Using this approach, cost savings could potentially result from formwork reuse, optimal utilization of labour and equipment, and learning curve effects due to repetitive horizontal and vertical layouts. The building construction will cost approximately $5.8 million which includes design fees, profit and overhead but excludes site work. The United Group’s proposed design not only meets all client requirements, but also goes above and beyond these requirements to produce highest quality structure given the spatial limitations. This firm is committed to utilizing state of the art technologies such as 3D and 4D modeling to providing highly constructible designs that are environmentally friendly and architecturally unique. Last but not least this firm employs several talented and experienced individuals with great reputation and very high standards of practice.

ii

Table of Contents Executive Summary....................................................................................................................... i Table of Contents .......................................................................................................................... ii List of Illustrations........................................................................................................................ ii 1.0 Introduction............................................................................................................................. 3 2.0 The Design ............................................................................................................................... 4

2.1 Site Visit........................................................................................................................ 4 2.2 Design Approach .......................................................................................................... 4 2.2 3D Model and Design Deliverables.............................................................................. 6 2.3 Design Cost Estimate.................................................................................................. 10 2.4 Design Schedule.......................................................................................................... 10

3.0 The Construction .................................................................................................................. 11 3.1 Construction Approach ............................................................................................... 11 3.2 Construction Cost Estimate......................................................................................... 13 3.3 Construction Schedule ................................................................................................ 14

3.3.1 Schedule Objectives and Inputs ................................................................................... 14 3.3.2 Durations, Sequence, Critical Path & Concrete Construction Cycle........................... 14 3.3.3 Calendar Assumptions and Milestones........................................................................ 16

4.0 The United Group Competitive Advantages ...................................................................... 18 Appendix A – CIVL II Building Detailed Cost Estimate ........................................................ 19 List of Illustrations Figure 1. Site Layout.......................................................................................................... 4 Figure 2. Substructure ........................................................................................................ 6 Figure 3. Superstructure..................................................................................................... 6 Figure 4. Ground Floor Rendering and Plan...................................................................... 7 Figure 5. Typical First and Second Floor Rendering and Plan.......................................... 8 Figure 6. 3D Rendering of CIVIL II .................................................................................. 9 Figure 7. CIVL II Roof ...................................................................................................... 9 Figure 8. Site Layout........................................................................................................ 11 Figure 9. Zoning............................................................................................................... 12 Figure 10. Formwork Utilization Efficiency.................................................................... 12 Figure 11. Site Layout & Zones....................................................................................... 15 Figure 12. Crew Movement diagram ............................................................................... 15 Figure 13: Conc. Cycle Flow Chart ................................................................................. 16

3

1.0 Introduction This report outlines a design-build-operate proposal of an additional building for the department of Civil and Mechanical engineering on behalf of UBC Properties Trust. The primary requirements underlying this proposal are to build a 3-storey structure that will house additional faculty and student offices, classrooms as well as additional student resources such as computer labs and study space. All roads in the surrounding area are to be fully functional during construction and the duration of construction is not to exceed a calendar year. The approach taken in the design of the structure was by use of commercially available 3-D and 4-D modeling software. This report will begin by first discussing the design and functionality of the proposed structure, followed by a detailed 3D illustration of all its major components including foundation, substructure, superstructure, interior and exterior walls and finally, the roofing system. It will then discuss in detail the cost estimate derived from the 3-D modeling for all the major building systems in addition to design services. Finally, a proposed schedule for the anticipated program and conceptual design is discussed.

4

2.0 The Design The following section describes the design approach which includes the project requirements, issues and concerns, and a general project philosophy. It then provides a description of the 3D model that was developed for this project.

2.1 Site Visit Initially, several site visits were conducted to get a sense of the architectural styles and the materials used in the surrounding buildings. During these site visits the available space for the project was also measured and the locations of the CEME entrances were noted. This information was utilized later in designing the footprint of the CIVL II building. In addition, the traffic pattern on the two roads adjacent to the site was investigated and was incorporated when designing the site layout.

2.2 Design Approach After visiting the proposed construction site, the conceptual design was developed by the Architecture/Engineering department with extensive input from the construction and operations department. The goal was to develop a design that would not only meet its functional requirements, but also exemplify visually attractiveness while offering low construction and maintenance costs. The following points summarize the design and functionality considerations pertaining to the proposed design:

• Utilization of material: The design is based composed of reinforced concrete for all structural members. Concrete was chosen due to its familiarity with local contracting companies and to match with the style of adjacent buildings.

• Connection with CEME: Three entrances were created; the main entrance from Engineering Lane (Fig 1); an entrance from East Mall; and an entrance that would connect compliment the CEME exit located under the skywalk.

• Usage of site area: The available area for the project has a rectangular L shaped configuration. Approximately half of this available space (~8500 SF) was used as the footprint and the rest was left for landscaping and creation of a pathway along the perimeter of the building. Specifically, the material lay down area shown in the figure was strategically located to allow for a unique landscaped courtyard and partially mitigate blocking of sunlight to the CEME building.

Figure 1. Site Layout

5

• The exterior closures: For the most part, the exterior walls consist of an architectural brick veneer that is complemented by a series of aluminium curtain walls. Typical window dimensions were used for all exterior walls. A spiral staircase enclosed by a semi circular curtain wall as well as panoramic window for the elevator are other exterior features of this building.

• Usage of building space: Since the building is an educational facility, the spacing of the columns was designed to accommodate a typical classroom. The spacing was chosen to be 27.5’X25’ which will also allow for an optimal number of typical offices (6 mid-sized or 2 super-sized i.e. grad offices). Effort was made to meet the structural requirements using a minimum number of columns.

• Roofing system: The roofing system consists of a semi-circular structure which is built from standard corrugated metal sheet to maintain the same design as the roof on AMPEL. This roof offers superior waterproofing capabilities and serves as an attractive architectural feature.

The following aspects were considered in the conceptual design to ensure ease of construction: • Dimension of elements: Only two different sizes of columns, footings and beams are

present throughout the building. Moreover, the slab bays are kept symmetrical by using a uniform horizontal and vertical layout. These design features would eliminate the need to acquire various sizes of formwork and would result in an increased productivity. Use of circular and other geometrically complex members was avoided, as their construction would negatively affect productivity.

• Distance between elements: floor-to-floor height was kept typical at 17’ with the east-west distance between columns maintained at 27’6”, and north-south at 25’.

• Symmetry and modularity of layout: the building layout consists of 2 equally sized zones each continuing six bays. This attribute will later prove to be useful for scheduling and labour utilization purposes.

The design characteristics mentioned above will allow for the formwork of both columns and slabs to be reused 6 times without in the course of construction, not to mention typical rebar cage sizes which could be potentially pre-fabricated off site. Moreover, only 50% of the formwork required for putting up all the structural elements will have to be purchased due to the innovative dual zoning of the site which will later be discussed detail. This standardization will improve productivity and work quality and reduce both construction cost and time.

6

2.2 3D Model and Design Deliverables

The foundation for the CIVIL II building is composed of square footings of two sizes, one for perimeter columns and another for larger internal columns. Footings are surmounted by column necks which support an interconnected grid of standardized grade beams figure 2. Slab on grade is then supported on the grade beams. It should be noted that the slab and beams are an integrated system and are poured together.

Figure 2. Substructure

The superstructure follows a similar standardized beam grid on top of the columns as shown in figure 3. Concrete walls are provided around both the stair shaft on the west face of CIVIL II and around the elevator shaft on the north side of the building. All subsequent floors maintain a similar design.

Figure 3. Superstructure

7

The design of the ground floor involves the inclusion of an undergraduate computing lab, a large classroom and a student study atrium figure 4. Interior dry wall partitions separate each room with the computing lab walls containing windows as an added architectural feature. There are three individual entrance locations to the building, the main one facing Engineering Lane on the south side of the structure, and two secondary entrances, one located on the southwest corner of the building facing CEME and another facing East Mall Rd.

F

Figure 4. Ground Floor Rendering and Plan First and second floor layouts are typical with the exception of three classrooms on the second floor aside from office space. To compliment the undergraduate computing lab on the ground floor, a graduate computing lab was planned for the first floor (figure 5). Again, internal dry

CEME Entrance CEME Entrance Main Entrance

East Mall Entrance

8

wall partitions separate the rooms. Office space was maximized on both the first and second floors such that the CIVIL II building could accommodate a growing staff and graduate student population. Moreover, an additional study area was incorporated for the first floor for all students to utilize. It should be noted that due to the optimal spacing between the column, the partition layout could be changed at any point depending on the requirements i.e. more offices, instead of classrooms and vise versa.

Figure 5. Typical First and Second Floor Rendering and Plan

9

A full 3D rendering of the proposed CIVIL II building is presented in figure 6. Exterior curtain wall glazing will accommodate the standard brick veneer along the main face of the building facing Engineering Lane for an architecturally pleasing appearance. Glazing will also encompass the spiral staircase on the east face of the building as well as on the exterior face of the elevator shaft not shown in the figure.

Figure 6. 3D Rendering of CIVIL II The curved roof feature of our design covers an open area surrounded by parapet walls as illustrated in figure 7. This area is planned to eventually house the CIVIL II electrical and mechanical HVAC systems.

Figure 7. CIVL II Roof

10

2.3 Design Cost Estimate The following table provides a cost estimate for the design services. As it is shown, the project consumes approximately 2500 engineering man-hours, at a rate of $75/hour. The indirect support costs and the office overhead are charged on engineering hours.

2.4 Design Schedule The design schedule is presented in the following table. The schedule gantt chart is presented in Appendix B-4 (Level 2 Summary). CIVIL II Building Design Schedule Wk Days Start Date End Date

Design Information/Requirements from Cleint 1 Mar 1stPreliminary/Conceptual Design 44 Mar 1st Apr 29thBid Proposal Preparation/Submittal 15 May 2nd May 20thBid Approval/Contract Award 1 May 31st

$/hr hrs $Direct Engineering Labour $75 2500 187,500$ Aprox. 2500 engineering hours at 75$/hr

Indirect Support Cost $20 2500 50,000$ Cost for Secretaries, Office Supplies,phoocopies, drawing reroduction, etc.$15 per chargable engineering hours

Office Overhead/equipment $35 2500 87,500$ Computers, Cad Sofware,Chief Engineer's Salary 35$ per chargable engineering hours

TOTAL 325,000$

11

3.0 The Construction The following Section introduces the Construction approach, the cost estimate and the construction schedule

3.1 Construction Approach

In coming up with a suitable layout for the CIVIL II construction site, the crane location was the first primary concern. Its location would have to be strategic in order to maximize its operability and usefulness on site. As shown in figure 8 the crane would be installed on the north east face of the building. This location gives the crane the ability to access material transported to site along Engineering Lane, as well as accessing the material lay down area also show in the figure.

Figure 8. Site Layout The material lay down area in itself was strictly incorporated into the design since space constraints in the vicinity would have proved difficult to store materials otherwise. Moreover, this area had the potential to be landscaped for use as a green space after construction. It was decided to locate site trailers adjacent to CEME in The Cheese parking lot since this area is generally not busy on a daily basis and obtaining permission from the department was not believed to pose an issue. As previously mentioned, material to the site would be accessed along Engineering Lane which, along with East Mall Rd, would remain fully functional through the construction phase.

In terms of the construction process itself, the building was divided into two zones as can be seen in figure 9.

12

Figure 9. Zoning

The methodology for zoning the building was first to identify the location for a construction joint (i.e. interface between concrete slab pours). Secondly, it offered the advantage of allowing for procurement of only 50% of the required formwork. To illustrate this, refer to figure 11. As the slab is poured in Zone A, the columns in Zone B will simultaneously be curing. When the slab forms in Zone A are stripped, the column forms from Zone B can immediately be transported to Zone A for constructing the second floor columns. As this progresses, the freshly stripped forms from Zone A can instantly be utilized to form the first floor slab in Zone B and so on. This greatly reduces cost through constant utilization of formwork resources with no down time.

Figure 10. Formwork Utilization Efficiency

This ability to work on multiple zones simultaneously will allow for a faster construction process and help meet a deadline that would suit the needs of the university.

13

3.2 Construction Cost Estimate Significant effort has been made to incorporate the construction and operations knowledge in the development of the construction cost estimates. To do so, the information provided in RS Means as well as practical knowledge of some of the engineering staff has been used in developing accurate estimates. By considering the impact the design has on the overall the construction and operations cost, we have ensured that that costs are not sub optimized. In other words, cost engineering has been carried out on all aspects of the design to ensure cost saving in all phases of the project including the operations. Various design considerations will result in potential cost savings over the full life of the project. Dual zoning the construction site is one of these cost saving measures. It results in the reuse of formwork, and the optimal utilization of labour and equipment as mentioned in the previous sections. Repetitive horizontal and vertical layout f the building is another parameter that could have potential cost savings as it encourages formwork reuse and affects productivity via the learning curve effect. The Mechanical and Electrical rooms are located on the roof which reduces the installation and maintenance costs due to the ease of access. The building will cost approximately 5.8 million dollars which includes the design fees, construction costs, profit and overhead. A detailed estimate has been carried out on the foundation/substructure and the horizontal superstructure. The remaining subcomponents have been estimated via the assembly based method using data from RS Means and engineering staff’s practical experience. A subcomponent cost percentage comparison has been carried out between the CIVIL II building and a typical 3 story office building (RS Means) to illustrate the accuracy of the estimate. Due to the fact this the building is an educational facility housing several students and computer labs, the percentage cost of electrical and mechanical components is larger than a typical office building because of higher system capacity demands. This would cause a reduction in the percentage cost of other subcomponents except for the roof. The complex roof glazing feature has resulted in a percentage cost increase over a typical office building. A general estimate has been provided below. A more detailed estimate can be obtained from Appendix A.

14

CIVL II Office (3S)Foundation/Substructure $193,831 4.3% 5.4%

Superstructure + Conveying $734,939 16.2% 21.9%

Interior Finish $854,156 18.8% 20.6%

Upper Roof/Roofing $168,477 3.7% 1.9%

Exterior Walls /Block Work $701,100 15.4% 18.2%

Mechanical (140% of Superstructure) $1,102,409 24.2% 17.8%

Electrical (110 % of Superstructure) $808,433 17.8% 14.3%

Total Dry Cost $4,563,346

United Group Const. Overhead and Profit $912,669

United Group Design Fees $325,000

Total Cost $5,801,015

3.3 Construction Schedule

The following section discusses different aspects of the construction approach that were incorporated into the CIVIL II building schedule.

3.3.1 Schedule Objectives and Inputs The objectives were primarily, on-time completion, continuity, unrestricted work flow (no trade interference), reduced rework and incorporation of constructibility. Preliminary design information, Work Breakdown Structure, quantities, resources, and productivity formed the basis for calculating activity durations. Physical relationships of building components, trade interaction, path interfaces and code regulations (e.g. safety) were considered when evaluating sequencing as will be discussed in following sections. Resultant output is a resource driven schedule with no fast tracking, and with formwork being the driving resource.

3.3.2 Durations, Sequence, Critical Path & Concrete Construction Cycle As previously described, the productivity information from RS Means in addition to practical knowledge of construction experts were used to determine the overall activity durations. Durations were derived from multiplying the production rates with quantities for all activities. Two zones (Figure 11) were selected in which separate components were constructed (i.e. Footings, Column Necks, Grade Beams, and Slab on Grade).

15

Figure 11. Site Layout & Zones After each element is constructed and the concrete is poured in the first zone the crew moves to the second zone as shown in Figure 12.

Figure 12.

Crew Movement

diagram

The following

factors were

considered in

determining

sequencing relationships:

• Physical Relation between Activities: The concrete components were supported by each other in all instances. These activities had finish to start schedule relations (i.e. concrete must be poured after formwork set up, column necks could only be constructed after spread footings are in place).

• Trade Interaction: Resource levelling was done to some extent to optimize the number of crews present on site at all times and trade dependencies were addressed. For instance,

16

rough-in electromechanical systems embedded in the concrete slab follows the carpenter work and rebar.

• Path Interference: Attempts were made to minimize this factor by designating a strategic location for site storage where material movement would not result in trade interferences.

• Code Regulations: Safety was considered in all aspects of scheduling. Since concrete formwork is the driving resource, the critical path passes through this activity. Due to modularity of design and cost saving considerations was decided that only 50% of recyclable (horizontals & verticals) formwork required for one floor would be used in a repetitive cycle from Zone A to Zone B with the help of two crews one for horizontal components and one for verticals to help achieve a cycle of 18 working days per floor. Figure 12 shows crew movement, and figure 13 shows the formation of concrete construction cycle.

Figure 13: Conc. Cycle Flow Chart

For every activity, Zone A will be completed before Zone B for sequencing purposes. For foundation work in each of the zones, all of the perimeter components are completed first in order to make use of learning curve effects, followed by internal components which are also similar dimensionally.

3.3.3 Calendar Assumptions and Milestones Attempts were made to maintain similar cycle times for columns and slabs in each zone It was assumed that a 7-day curing period would be required for the concrete slab and after 1 day, forms could be stripped from columns, foundation and the sides of the slab. Excavation, backfill and foundation waterproofing were not taken into consideration. A 5-day work week and 8-hour work day was assumed. Important milestones have been identified in the schedule and provided in the following table. A more detailed milestone schedule is provided in Appendix B – 1 (Major Milestones).

2 Zones

50%

Formwork

One Crew

For Verticals

One Crew

Slabs/Beams

18 Working Days per Floor

17

Design Information/Requirements from Client May 31, 2005 Bid Approval/Contract Award November 15, 2005 CIVIL II Building Construction Schedule November 25, 2005 Internal Partition walls November 30, 2005 SF Partition Wall Zone-A&B December 5, 2005 Complete Partition Walls January 16, 2006 Block Work (External Walls Only) January 27, 2006 Roof Zone A&B January 30, 2006

18

4.0 The United Group Competitive Advantages There are various aspects of The United Group’s proposed design that make it an excellent candidate and set it apart from its competitors. Primarily, it fulfills client expectations by meeting all functional requirements such as classrooms, computer labs and faculty/grad offices as well as provides an optimal use of floor space. Moreover, the proposed design is not only visually attractive but also provides long term energy and cost savings due to the choice of glazing and the location of electrical and mechanical rooms. Last but not least, the site layout addresses issues such as pedestrian and traffic access to the adjacent roads. The repetitive horizontal and vertical layout of the building would increase constructability as it lends itself to formwork reuse and crew learning curve effects which in turn translates into time/cost savings during the construction phase. Other factors such as dual zoning of the site and its layout will also have positive effects on the constructibility by reducing downtime and optimal use of equipment (i.e. crane). These aspects of the design will facilitate the on time and on budget delivery of the project. The proposed design takes into consideration environmental issues as well as the interferences with the surrounding buildings. Leaving the rectangular area (landscaped courtyard) between CEME and CIVL II open will not only provide a space for material storage during construction phase, but also allows sunlight to reach the CEME offices and the reading room which is not considered in most other designs. This building should serve as an architectural signature of the UBC Faculty of Applied Science and the proposed design fulfills this pledge by presenting unique and visually stimulating features which are also highly functional. Some of the highlights include the creative roof, spiral staircase and panoramic elevator which are visible from the outside and the open atrium on the 1st floor which serves as a study space for students. The CIVL II building design has been developed by a team of highly competent engineers/architects who possess not only construction and operations experience but also 3D and 4D design capabilities. The United Group has always strived to achieve and maintain the highest standards of practice within the industry by ensuring all its deliverables are on time, on budget and are of the highest quality.

19

Appendix A – CIVL II Building Detailed Cost Estimate Foundation/Substructure Qty $/unit

FootingsFormwork $5,822Reinforcing $3,313Place, Vibrate and Cure Concrete $7,844 $16,980Column NecksFormwork $2,780Reinforcing $615Place, Vibrate and Cure Concrete $866 $4,262Slab on Grade and Grade BeamsFormwork $43,275Reinforcing $75,759Place, Vibrate and Cure Concrete $53,555 $172,589

$193,831

Superstructure + ConveyingGround Floor

Columns 294 $65 $19,110 $19,110Walls & Staircase 1800 $30 $54,000 $54,000Beams & Slabs

Formwork $55,363Reinforcing $54,465Place, Vibrate and Cure Concrete $29,673 $139,500

First FloorColumns 294 $65 $19,110 $19,110Walls & Staircase 1800 $30 $54,000 $54,000Beams & Slabs

Formwork $55,363Reinforcing $54,465Place, Vibrate and Cure Concrete $29,673 $139,500

Second FloorColumns 294 $65 $19,110 $19,110Walls & Staircase 1800 $30 $54,000 $54,000Beams & Slabs

Formwork $55,363Reinforcing $54,465Place, Vibrate and Cure Concrete $29,673 $139,500

Roof Columns from Lower Roof to Upper Roo 294 $65 $19,110Walls & Staircase 1800 $30 $54,000Lower Roof Parapets ( Forms, Rebars, C1200 $20 $24,000 $97,110

$734,939

20

Interior FinishGF Interior Finish( Superstruct $ x 1.1 ) $233,871FF Interior Finish ( Superstruct $ x 1.3) $276,393SF Partition Walls ( Superstruct $ x 1.3) $276,393Spiral Stair Case (Prefabricated Steel Stairs) $67,500

$854,156

Upper Roof/RoofingUpper Roof (Dome Feature) (1.2* $ of Slab) $168,477

Exterior Walls /BWGround Floor 7380 $30 $221,400First Floor 7380 $30 $221,400Second Floor (Curtain Walls, windows and BW) 7380 $35 $258,300

$701,100Mechanical (1.4* Superstructure)

$1,102,409Electrical (1.1*Superstructure)

$808,433

Total Dry Cost $4,563,346

United Group Const. Profit & Overhead $912,669`

United Group Design Fees $325,000

Total Cost $5,801,015