What turnkey structural reinforced concrete services do we provide?
Bongshai Engineering & Construction delivers comprehensive reinforced cement concrete (RCC) structural construction across Bangladesh. Equipped with computerized concrete batching plants, transit mixers, concrete boom pumps, and heavy tower cranes, our structural engineering team constructs durable, earthquake-resistant high-rise commercial office towers, industrial complexes, and mixed-use real estate projects.
High-Rise RCC Structural Framing
Multi-storied cast-in-situ reinforced concrete structural frames incorporating heavy column layouts, transfer girders, and ductile seismic detailing per BNBC 2020 Zone 3 seismic criteria.
Post-Tensioned (PT) Flat Slabs
Advanced post-tensioned unbonded tendon slab technology allowing longer span distances between columns, reduced slab thickness, reduced building dead load, and crack-free floor performance.
Seismic Shear Wall & Lift Core Engineering
Monolithic slip-formed concrete elevator shafts, emergency stair cores, and perimeter shear walls designed to absorb lateral wind forces and seismic ground motion.
Heavy Floor Load Industrial Factories
Heavy machinery foundation slabs, vibration-free concrete floors, power troweled vacuum-dewatered concrete finishes, and hardener-embedded floor screeds for industrial facilities.
Commercial Shopping Malls & Supermarkets
Multi-floor retail shopping centers featuring wide-span atrium voids, escalator cutouts, underground multi-level basement car parking rafts, and heavy utility basements.
Multi-Unit Luxury Residential Towers
High-density luxury apartment towers, housing society developments, green building certified residential units, acoustic floor insulation, and waterproofing membrane systems.
What is a featured high-rise benchmark project for our RCC division?
Premier Hotel Management Ltd (20-Storied Tower, Dhaka)
Constructed the 20-storied 5-star hotel tower structure in Banani/Gulshan zone, Dhaka. Scope included deep bored piling foundation, 3-level basement raft foundation, post-tensioned floor slabs, shear wall core slipforming, and high-spec architectural RCC finish.
How does post-tensioned (PT) slab technology benefit multi-story commercial buildings?
PT slabs significantly reduce floor-to-floor height requirements, eliminate beam drops to create larger clear headroom, allow longer spans between columns, and minimize concrete volume while preventing flexural slab cracking.
What non-destructive testing (NDT) is conducted on concrete columns?
We conduct Schmidt Rebound Hammer testing (ASTM C805) and Ultrasonic Pulse Velocity (UPV) testing (ASTM C597) to non-destructively verify concrete uniformity, density, and compressive strength across high-stress vertical columns.
