Our Expertise | Engineering Services in Construction

With our highly technical knowledge and vast industry experience, we offer professional consultancy design services & construction engineering support.

OSD provides full range of engineering service on the design and construction of bridge and building structures; from feasibility studies and project planning, cost optimization and alternative design, construction engineering services from construction technologies to temporary work design, as well as design of structural repair and strengthening works. These include complicated prestressed flat slab and transfer plate design for large-scale commercial complexes as well as high-rise office towers and residential apartments. various types of bridges such as balanced cantilever, arch and stay cable bridges. The bridge structures that we handle range from standard form using precast beams to integral bridges as well as long span bridges such as balanced cantilever box girders, concrete/steel arch, and cable-stayed bridges. We aim to provide quality service to all our clients based on professionalism, flexibility, and economical engineering solutions. We pride ourselves in our ability in providing innovative, practical, and optimum designs to meet our clients’ requirements. Our wide range of design and technical services cover the following areas of expertise:

01 OF SERVICE

Bridge Designs & Alternative Bridge Designs
- Prestressed concrete bridges design and detailing.
- Design bridges built with various forms of precast prestressed girders (I, T, M, U Beams), and cast in-situ box girders and RC beams.
- Design bridges with cast-in-situ hammerhead and dropped-in midspan precast beams made continuous.
- Specialise in design of continuous bridge, semi-integral as well as fully integral (built-in abutment) bridges.
- Design precast segmental box girder bridge with external and unbounded prestressing, including wet and dry joints.
- Design cast in-situ prestressed box girder bridges by both balanced cantilever and cantilever construction.
- Cable stay bridges design, detailing and construction methods.
- Steel structures, including steel arch bridges and complicated iconic bridges.
- Feasibility studies, construction methodology, and project costing.
Kajang Reko Bridge Over KTM Track

Precast Segmental Box Girder Bridge, Jalan UMS, Kota Kinabalu, Sabah

MRT Viaducts at Package V207, Sg. Besi, Malaysia

MITC Viaducts at Air Keroh, Melaka, Malaysia

Main Span of Pulau Bunting Crossing (Steel Arch with Cable Hangers), Kedah, Malaysia

Ampang-Kuala Lumpur Elevated Highway (AKLEH) Phase 2 Elevated Viaducts Alternative Design

Taman LTAT Ingress & Ergress Ramp, Bukit Jalil Kuala Lumpur

60 meters Presstressed Precast Segmented Girder for Rantau Panjang Bridge Selangor
02 OF SERVICE

Building Designs & Alternative Building Designs
- Design and detailing of high-rise buildings and large-scale shopping malls.
- Advanced 3-D modelling and finite element analysis.
- Response spectrum/dynamic analysis for high-rise buildings in seismic zones.
- Design and detailing of prestressed structures, including post-tensioned flat slabs with irregular column grids, flat plates (without drop panels), and beam-slabs.
- Design of prestressed transfer plates with point load from column or line load from shear wall.
- Building construction zones, stressing sequence, and project costing.
Structural Design for 8 blocks of Buildings for Institute of Medical Research (IMR) at National Institute of Health, Setia Alam

Alternative Design of RedQ (AirAsia HQ) Buildings using Prestressed Concrete Strutures, KLIA2, Sepang

LBS Skylake Residence, Selangor, Design of Podium Floors with Prestressed Flat Slab and Prestressed Transfer Plate for Tower Blocks

Design of Prestressed Transfer Plate to support 55 storeys The Peak, Phnom Penh, Cambodia

Design of Prestressed Flat Plate for Residential Condominimum at Ratchatewi, Bangkok, Thailand
03 OF SERVICE

Construction Engineering Services & Temporary Work Designs
- Proposing effective solutions to solve site and construction problems.
- Bridge construction methods, temporary work, and costing.
- Design of temporary fixity to stabilise bridges during construction for box girder bridge supported on bearing but built with balanced cantilever constructions.
- Design of temporary work/stressing for closure pours to stabilise bridges during midspan stitching.
- Perform pre-camber analysis and develop pre-camber chart for balanced cantilever box girder constructions.
Construction Engineering Service for KVMRT Precast Segmental Box Girder Erection, Malaysia

Form Traveler and Precamber Design Service

Constrution Engineering Service for V201 Long Span Crossing by Segment Erector

160 ton Precast beam launching at Tampines Garden Bridge, Singapore using 1200 ton crane.

Construction Engineering Service and Precamber Design for Balanced Cantilever Box Girder Bridge in Yala Province, Thailand
04 OF SERVICE

Engineering Assessments & Structural Inspections
- Building and bridge inspections and structural appraisals.
- Building and bridge conditional surveys of existing structures.
- Structural appraisals and design inspections for outstanding or additional loads.
Structural Assessment & Design Check of Jetty and Access Bridges for Super-Heavy Cargo (1000MW Transformer) at JanaManjung Power Plant

Genting Highlands Building Visual Inspection and Structural Assessment

Teluk Ramunia Building Inspection & Structural Appraisal

Kota Kinabalu Port Inspection & Structural Appraisal

Bridge Inspection & Structural Assessment at Putrajaya
05 OF SERVICE

Design of Structural Repairs & Strengthening Works
- Repair and strengthening of reinforced concrete and post-tensioned structures.
- Proposing effective solutions to solve site and construction problems.
- Structural design strengthening/ upgrading work for RC and prestressed structures as well as bridges, including creating openings through prestressed flat slabs. Remedial design work for prestressed structures should tendons snap during stressing.
Bangsar South Building Structural Upgrading by Carbon Fiber

Viva Mall Structural Strengthening by steel Plate Bonding and Shear Plate

Tendon Re-anchoring and Structural Trimming of Prestressed Flat Slab for new escalator opening

Structural Strengthening of Kingfisher Bridge Pile cap with Additional Micro piles

Bridge U-Beam Strengthening with Carbon Fiber
06 OF SERVICE

3rd Party Design Reviews & Inspections
- Independent inspections on the design and construction of bridges and buildings.
- Reviewing of design details and ensuring compliance of clients’ designs with the applicable contractual standards and regulations.
- Ascertaining the precision and completion of design deliverables produced by our client.
- Preliminary reviews to establish project feasibility and the appropriate engineering solutions, and the corresponding costs of the proposed work.
- Due diligence assessments to determine the existing conditions and economic value of assets.
- Monitoring and highlighting potential cost and time over-run.
Independent Checker Engineer (ICE) for LRT3 Elevated Viaducts, U-Girders and Long-Span Crossings

LRT3 Cable Stayed Bridge over Sg.Klang, Selangor

Sungai Jeram Bridge : Span 55/90/55 Balanced Cantilever Box Girder on Pile Bent Piers

Sunway South-Quay Residence: Design Review of Prestressed Transfer Structures

Proposed construction and completion of Muara Lassa Bridge, Mukah Division