The implementation of unit price of work standard SNI 7394: 2008 for the construction of reinforced concrete beam

Advances in Civil Engineering

Abdullah

Azmeri

et al. 2019

Seismic loads should be considered in the cost estimation process as a consequence of changes in structural dimensions. Seismic loads received by buildings vary from one region to another, which are used as a basis for dimensioning structural components. This paper aims to investigate the potential cost changes of the reinforced concrete (RC) beam and column elements as an implication of variations in seismic load received by a building constructed in different seismic areas. This study was applied to a prototype of the two-story building. The structure analysis performed with dynamic analysis by varying seismic design categories based on eight seismic zones in the observed area. The utilization of a building prototype was applied to three indices of seismic importance factor to represent the building occupancy category. The results of the study explaining the increase in the total cost of the two RC elements are 0.68%, 1.70%, and 1.54%, respectively, for the seismic importance factor indices of 1.00, 1.25, and 1.50. The variations of the costs due to the factor of seismic load and building occupancy categories indicate that both factors need to be considered in the cost estimation process of buildings.

Section: E Percentage Of Rc Costsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Cost Estimation of Structural Components of a Building by considering the Seismic Load on Different Regions

Advances in Civil Engineering

Abdullah

Azmeri

et al. 2019

“…Dimensi merupakan informasi yang dibutuhkan untuk menganalisis kuantitas sebuah pekerjaan. Terkait dengan konstruksi beton bertulang, kuantitas dan harga ditentukan oleh komponen pekerjaan beton, pekerjaan pembesian, dan pekerjaan bekisting [8][9] [10]. Penentuan dimensi dipengaruhi oleh beban rencana yang bekerja pada suatu komponen struktur bangunan.…”

Section: Pendahuluanunclassified

Analisis Perubahan Kuantitas Material Kolom Beton Bertulang Pada Model Struktur Bangunan Gedung Sederhana

Abdullah²,

Riza³

et al. 2019

RekayasaSipil

The loading aspect of a building is one of the factors that varies the dimensions of building components. Differences in building site areas are also contributed to the load received by buildings, especially in terms of earthquake loads. For the Province of Aceh with relatively high levels of earthquake vulnerability, the problems of structure dimensions change that caused by earthquake need to be specified. Changes to dimensions will affect the quantity of works, and furthermore against the building price standard. This research conducted to analyze the change of material quantity caused by earthquake load changes based on indication of acceleration of spectral response. This study was conducted by developing a model of simple building structure design and load change analyzed in 8 earthquake zones as specified in standard SNI 1726:2012. The analysis focused specifically on the structural components of reinforced concrete columns. The information obtained from the analysis explains the effect of earthquake load changes from each of the observed zones on the use of reinforcing steel materials. The same condition is also seen in the ratio of reinforcement usage per cubic meter of concrete. The changes begin to be seen when the building model is positioned on zone 14 with an acceleration of 1.19g spectrum response.

The unit price of building changes to different design of seismic importance factors

Mastura

IOP Conf. Ser.: Mater. Sci. Eng.

Abdullah

2021

The design of a building needs to accommodate the potential for earthquake risk. The function and utilization of buildings are closely related to the risks caused by earthquakes, especially for people using the building. In the design process, load changes due to utilization are accommodated through an index value called seismic importance factors (SIF). The application of the index will directly affect the structural dimensions of a building. Thus, the amount of building unit price (BUP) needed will also vary according to the function of the building. This research was conducted to analyze changes in BUP on some seismic importance factors in a building structure design. Changes in unit prices were explained by applying the price index approach in the form of the building unit price index (BUPI). This study was applied to a six-story building using reinforced concrete structures and following earthquake load conditions in four seismic zones in Aceh Province. The BUPI was analyzed based on comparing a building unit price (BUP) to the reference BUP that was set from the building designed with the lowest SIF index in the initial seismic zone. The analysis results show that the increase in the SIF indices will potentially increase the BUP to 6 % (IDR. 105,061.25) for SIF 1.00 to 1.25, while the increase in costs for SIF 1.25 to 1.50 was 4 % (IDR. 84,507.32). The BUPI values have clearly explained how the building unit price increases following the SIF indexes increase.