Introduction:

The construction industry embraces modern methods and innovations by offering techniques and solutions which can be used to reduce construction time and promote sustainable development, as well as cost savings.

Most country around the globe uses concrete as its primary material in many type of construction. Concrete is a combination of aggregates, cement and water that are thoroughly mixed and bonded together. This mixture is then poured to the desired shape of pre-designed formworks for slabs, beams, columns, walls and other type of structural element. Years of research for concrete behavior and characteristics developed several methods of structural design. Concrete structure may be classified into to two types; these are pre-cast and cast-in-place concrete. Pre-cast concrete is a type of concrete structure that is casted in the form of structural element before being placed in the final position [1] while cast-in-place concrete is casted directly into the final location in the structure.

Generally, this work relates to the design and cost comparison for cast in place column-beam framing system (CBFS) and shears wall-flat slab design (SWFSD) of SYCHIONG building. SYCHIONG building is a proposed sixteen (16) story private residential building located at Mactan, Lapu-Lapu City, Philippines. Currently, the proposed design of this building is SWFSD conducted by known contractor in the locality. The research will also investigate the construction time and detailed bill of material in both design methodology. CBFS is one of the most widely recognized construction method where structural component are mainly made of reinforced concrete column, beam, slabs and footing while its wall are commonly made of masonry wall of bricks, blocks , stones and of dry wall partitions. On the other hand, cast in place SWFSD is a concrete design method where there is no column and beam and its load bearing reinforced concrete walls, slabs and footings will be design to carry the rest of the structure.

Significance of the study

This study will serve as a tool in representing the design, cost and time frame comparison of CBSFS and SWFSD for the construction of SYCHIONG building. It will demonstrate the pros and cons between two design methods and allow structural engineer to explain in detail

Objective of the study

These are the main objective of the study

1. To provide tabulated result of each item composing the structural element of each design method with corresponding estimated material cost.

2. To estimate the overall labor cost and possible timeline to finish the structural element of the building.

3. To establish a visual graph representing the total structural cost with respect to total time frame of the project.