1 Introduction
My name is [removed because peer-review process] ……………………………………………………………….. I am reaching out to you kindly to request assistance for my research by answering the following questionnaire. The objective is to collect data on social housing multifamily civil construction projects (such as "Minha Casa, Minha Vida") to establish a national benchmarking of constructability for these projects.
The data collected through this questionnaire, as outlined in the previously presented Informed Consent Form (ICF), will be used solely for academic purposes. The information gathered will not be associated with a specific construction company or individual in the published results, and by itself, it will not allow identification of the company or you. The generated results can be shared with you upon request (please notify the researcher if interested).
When responding to the questionnaire, please consider a specific social housing multifamily development project, whether in the design phase, under construction, or already completed.
Thank you very much!
▪️ What is your role in the company? Please check all applicable options:
Architect
Civil Engineer
Industrial Engineer
Director
Owner
Other
▪️ The project for which you are responding to this questionnaire:
In the design / feasibility phase
Under construction
Already completed
2 Questions only for projects under construction / already completed
▪️ Is there a standardization of construction methods? This standardization involves maintaining the same execution method by the operational team, aiming for consistent results (e.g., same method for subflooring, same method for plastering, as an executive standard aiming for consistent quality).
Yes
No
Other...
▪️ How many progress meetings occur/occurred about the building works?
None | They do not occur/occurred.
1 per week.
1 every two weeks.
1 per month.
1 every 45 days.
1 every two months.
1 every three months.
1 every four months.
Other...
▪️ Regarding stocks:
Made in sufficient quantity and within the site itself.
The site had a lot of material in stock or for other neighboring sites.
Other.
▪️ Were there production design (like ceramic tiling layout)?
Yes
No
▪️ Was there a construction site layout design?
Yes
No
▪️ Did the site location prevent any construction solution?
Yes
No
Other...
▪️ What vertical transportation method is (or was) used? Check all applicable.
Crane
Elevator (cable or rack and pinion)
Column hoist
Rope and pulley
Other...
▪️ Was the structure reinforced concrete cast in situ (columns/beams/slabs)?
Yes
No
3 Specific Questions - Cast in Situ Reinforced Concrete Structure
▪️ Could you describe the formwork system for beams and columns? Check all that apply.
Sawn timber
Resin-coated plywood / plywood
Plastic-coated plywood / plywood
Other...
▪️ Could you describe the formwork system for slabs? Check all that apply.
Sawn timber
Resin-coated plywood / plywood
Plastic-coated plywood / plywood
Ribbed slab with clay pots
Ribbed slab with EPS/foam
Hollow-core slab with ceramic tiles and joists
Other...
▪️ Could you describe the concrete pouring system used? Check all that apply.
On-site mixed concrete with concrete mixer
Ready-mixed concrete poured
Pumped ready-mixed concrete
Other...
▪️ Could you describe the shoring system used? Check all that apply.
Sawn timber
Wooden forks
Metal shoring
Metal tower shoring
Other...
▪️ Where was the reinforcement assembled? Check all that apply.
Cut and bent on-site
Purchase of pre-cut and pre-bent reinforcement
Other...
▪️ Could you provide the structural design drawings? The use of the file will be exclusively for calculating indicators, not for commercial purposes, sharing with third parties, or for publication in the PhD thesis. The company or name of designer will not be disclosed.
[INSERT FILE]
4 Specific Questions - All Projects
▪️ How were the projects developed?
All in BIM
Part in CAD, part in BIM
All in CAD
▪️ Were the projects shared among designers using a cloud platform?
Yes
No
I don't know, projects were contracted from an external office
▪️ Was there a project coordinator involved?
Yes
No
Other...
▪️ Were there curved elements (circular windows or with arch details, curved parts of walls or beams) on the facade?
Yes
No
▪️ Are there (were there) complete and sufficient material/component brands and specifications to be used? If any specification was insufficient, please describe under "Other".
Yes
No
Other...
▪️ Could you provide the typical floor plan of the architectural design? The document will be used restrictively, not published or shared with third parties, solely for gathering indicators related to the form and dimensions of the building. The company or name of the designer will not be disclosed.
[INSERT FILE]
▪️ What type of wall was used in the project? You can select more than one option if applicable.
Cast in situ reinforced concrete wall
Lightweight concrete panel or cellular concrete
Light steel frame
Naval partition
Precast concrete wall
Drywall
Structural masonry (ceramic or concrete block)
Conventional masonry (non-structural, ceramic or concrete block)
Other...
▪️ Were there finishes applied to the wall? If yes, which ones?
______________________________________________
▪️ What was the structural system used? You can select more than one option if applicable.
Precast concrete
Light steel frame
Steel structural system
Cast in place reinforced concrete
Precast concrete wall
Structural masonry (in ceramic or concrete block)
Cast in place reinforced concrete wall
Other...
▪️ What type of roof was used? You can select more than one option if applicable.
Roof slab without traditional roofing
Integrated metal roof on metal truss/rafter (sandwich tile roofs with metal lining below and intermediate acoustic insulation).
Conventional metal roof on metal or wooden truss/rafter
Fiber cement roof on metal or wooden truss/rafter
Metal roof on fixed joint to cast in place beams
Ceramic tiles on fixed joint to cast in place beams
Other...
▪️ Does the company maintain a database of solutions that have higher constructability (easier to build)?
Yes
No
▪️ In your company, is there interaction between the site engineer and designers to discuss what is easier or harder to execute on-site?
______________________________________________
▪️ Do you think this interaction would be important? Why?
______________________________________________
▪️ From your experience, what makes one project easier or harder to execute than another?
______________________________________________
If you wish to receive the research results in the future, after analysis and publication in a scientific journal, please email the researcher at email@emailofresearcher.com with the subject "Constructability Benchmark Research Results".
[End of questionnaire]