Shibanee and Kamal Architects Uses STAAD.Pro to Analyze Unconventional Curved-wall Design
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Shibanee and Kamal Architects Uses STAAD.Pro to Analyze Unconventional Curved-wall Design - 1

CASE STUDY Project Summary Organization: Shibanee and Kamal Architects www.total-environment.com Location: Pune, Maharashtra, India Project Objective: • Provide 2,000 square meters of space for classrooms, incubation rooms, auditorium, conference halls, and staff rooms. • Save the massive tamarind tree that occupies the building site. • Blend the building with its surrounding protected heritage structure. Products used: STAAD.Pro Fast Facts • Engineers analyzed curved walls with varied thickness and large openings, and simulated seismic behavior by performing dynamic analysis. • Structural design compensated for irregular building shape with non-parallel column and wall alignments. • The parametric model tools in STAAD.Pro allowed engineers to model all openings. • STAAD.Pro’s hybrid formulation simulated the curved wall as load bearing elements. • Design analysis proved a conventional design alternative to be less economical and aesthetic than the unconventional structure ultimately chosen. ROI • Considering the curved wall as a load bearing element resulted in substantial cost savings. • 3D visualization, flexible structural analysis, and reliable results delivered by STAAD.Pro produced major cost benefits. Shibanee and Kamal Architects Uses STAAD.Pro to Analyze Unconventional Curved-wall Design Bentley Software Helps Overcome Design Challenges of Innovative BHAU Institute Nurturing Innovation Shibanee and Kamal Architects, principal architects of Bangalore-based Total Environment Building Systems Pvt Ltd, designed the BHAU Institute of Innovation, Entrepreneurship, and Leadership (BIEL) for the College of Engineering, Pune. Located on the bank of river Mula in Maharashtra, India, the Institute is intended to nurture innovation, encourage entrepreneurship, and develop leadership. The INR 60 million building provides educational and research space within an unconventional, bi-directionally curved structure that blends in visually with the college’s 160-year-old campus. The structural engineers used Bentley’s STAAD.Pro® to deliver the precise analysis and visualization that enabled the evaluation of the curved wall itself as a load-bearing element. This substantially reduced the cost of the entire project. The roof slab of the building was partly converted into a landscaped terrace garden, helping to integrate the building with its historic surroundings. A viewing gallery and amphitheater intended for recreation and relaxation overlook the river Mula, which flows along the northern side of the building. This alignment ensured that each habitable space has natural, glare-free north light and ventilation. In addition, the curvilinear change in elevation provided the maximum road width at the ground level, where the site was tightly constrained on three sides. Preserving Campus Heritage Chartered in 1854, the College of Engineering, Pune is consistently ranked among the top 20 technical colleges in India. The college’s newest institute will help students cultivate entrepreneurship qualities and support them while they set up new companies. The architects kept this mission in mind as they conceived a space that would integrate physical, social, and environmental considerations for a business incubator. The building had to fit on a site bounded on three sides by existing buildings, as well as blend organically into a campus declared to be one of the protected heritage structures in India. Perhaps the single greatest challenge, however, was to preserve a mature tamarind tree, which became the nexus of the design. Shibanee and Kamal conceived a circular space built-up around the tree and spreading over a ground floor plus two floors for classrooms, incubation rooms, auditorium, conference facilities, and faculty rooms. The circular shape of the building not only preserved the mature tamarind tree but also fulfilled the requirements for good circulation space for the classrooms and auditorium. A bridge connecting the two ends of the building on either side of the tree made sure that not a single branch of the tree had to be cut. Rendered 3D structural model in STAAD.Pro. The structure’s unconventional shape posed several challenges during the design development stage, including: • Feasibility of using bi-directionally curved walls to support large slabs and beams. • Dynamics of the interaction of curved walls with slabs, beams, and columns. • Predicting the behavior of curved concrete walls during earthquakes. • Modeling and analyzing curved walls and irregularly shaped slabs as plate elements. • Accommodating a large number of revisions in a short period of time.

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Shibanee and Kamal Architects Uses STAAD.Pro to Analyze Unconventional Curved-wall Design - 2

“When the architect turns innovative, a structural engineer cannot lag behind. So we, too, responded positively by being innovative. Our engineers have mastered the art of modeling any complicated structure in STAAD.Pro. In this building, the main challenge before us was to employ the curved walls to support the slabs, and exploit their in-plane strength to resist seismic shears effectively. We could achieve whatever architects wanted and imagined.” —Prakash Channappagoudar, senior vice president, structural design, Shibanee and Kamal Architects Find out about Bentley at: www.bentley.com...

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