Case Study: Designing a 40 Storey High Office Building Using two Variants, with Regular Concrete Columns and with Compound Ultra-High Performance Concrete Columns and Regular Concrete Columns

Popa, M.; Kiss, Zoltan; Constantinescu, Horia; Bolca, Geanina

doi:10.1016/j.protcy.2016.01.007

Cited by 7 publications

(5 citation statements)

References 2 publications

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“…The slump test result as shown in Figure 22 satisfied the minimum required workability in ASTM C230 which is 230 mm [36]. The slump flow value was compared with Popa's [37]. Compared to Ductal, the workability of VHPC was better.…”

Section: Notementioning

confidence: 89%

The characteristic of very high-performance concrete (VHPC)

Bari

Agustin

Ekaputri

2023

IOP Conf. Ser.: Earth Environ. Sci.

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A Very High-Performance Concrete (VHPC) has compressive strength in the range 120-150 MPa and high flowability. However, there is no VHPC mix as a repairing grout in Indonesia. This study presents the mix design of VHPC using Indonesian by-product materials to achieve compressive strength of 120 MPa. A sequence experimental method determined the suitable material to replace fine sand, ground quartz and superplasticizer. Then, the optimum mix design was tested with compressive strength, splitting tensile strength, slump flow, permeability, and shrinkage tests. In addition, the effect of 35 mm length hook-end steel fiber in the VHPC by 2% of volume was observed. The optimum mix design used cement, silica fume, and glass powder as binder with the ratio of 3:1:1. The ratio of sand and binder was 0.88. The water to binder ratio (w/c) was 0.11 using superplasticizer and accelerator which was kept on 4.3% of cement weight each. This mix design achieved a compressive strength of 128 MPa at 28th day. VHPC had high shrinkage whether volumetric or longitudinal. However, the steel fiber was able to restrain the shrinkage and increased the tensile strength. Nevertheless, the hook-end steel fiber is not recommended because its large size decreased the compaction and eventually decreased the compressive strength.

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Section: Notementioning

confidence: 89%

The characteristic of very high-performance concrete (VHPC)

Bari

Agustin

Ekaputri

2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…The incorporation of UHPC as a sophisticated material, often in conjunction with steel casings such as steel tubes, whether additionally reinforced or confined by external steel walls, has the potential to revolutionize the design of next-generation skyscrapers [61][62][63]. Notably, endeavors have already been initiated to explore structural possibilities for high-rise buildings [64,65]. However, certain challenges persist, many of which have been investigated across diverse research fields.…”

Section: Introduction To Industrymentioning

confidence: 99%

Multi-Criteria Risk Analysis of Ultra-High Performance Concrete Application in Structures

Tajasosi,

Saradar,

Barandoust

et al. 2023

CivilEng

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In developing countries, ultra-high-performance concrete (UHPC) has not garnered sufficient attention, and its potential industrial applications remain largely unexplored and underdeveloped. The purpose of this paper is to assess the risk associated with integrating UHPC technology into the construction industry, focusing on economic, technical, and environmental facets, as highlighted by global research endeavors in this domain. In this study, a risk model is validated by analyzing diverse UHPC mix proportions from various studies and assessing the associated risk indices concerning constituent materials. The findings demonstrate that incorporating UHPC as a more robust alternative to earlier generations is plausible when considering multiple perspectives within the concrete industry. The preeminence of compressive strength and the significance of service life as a pivotal cost factor during the maintenance period, coupled with comprehensive risk indices, underscore the excellence of UHPC. Comparing UHPC with high-performance concrete (HPC) and normal concrete (NC), it becomes evident that UHPC exerts a notably lower adverse impact on the ecosystem. Additionally, UHPC proves to be a more economically viable option, warranting the replacement of existing technologies.

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“…Pascu proved a 30% parking space saving when using HPC instead of conventional concrete for the columns due to its diameter reduction 29 . A preliminary design of a 40‐story building made of UHPC and a comparison with the conventional concrete solution was also carried out 30 . Kimura et al 31 studied the dynamic properties of an 80‐floor building with a 200 MPa UHPC.…”

Section: Introductionmentioning

confidence: 99%

“…29 A preliminary design of a 40-story building made of UHPC and a comparison with the conventional concrete solution was also carried out. 30 Kimura et al 31 studied the dynamic properties of an 80-floor building with a 200 MPa UHPC.…”

Section: Introductionmentioning

confidence: 99%

A comparative study on the differential axial shortening in high‐rise buildings

Ruiz

Todisco

Pazos

et al. 2021

Structural Concrete

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Differential axial shortening (DAS) between columns and core, due to timedependent phenomena and elastic deformation, is a very important aspect to be considered in the design of concrete high-rise buildings. This research compares the DAS of 250-and 500-m-tall buildings considering different materials for the columns and core. In fact, a parametric study is performed to evaluate the effects on DAS when using composite, reinforced concrete (RC), or highperformance concrete (HPC) columns, such as an RC or lightweight aggregate RC (LWARC) core. A finite element commercial software has been validated and then employed to estimate the DAS. All studied cases are defined on the basis of the Cristal Tower, located in Madrid, to provide reliable estimates of DAS. Results illustrate that columns made of HPC present lower DAS at infinite time and required diameters similar to the composite solution. Furthermore, an LWARC core shows higher axial shortenings compared to the RC alternative. For these reasons, the combination of HPC columns with the LWARC core is presented as a promising solution to reduce the effects of DAS in tall buildings.

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Case Study: Designing a 40 Storey High Office Building Using two Variants, with Regular Concrete Columns and with Compound Ultra-High Performance Concrete Columns and Regular Concrete Columns

Cited by 7 publications

References 2 publications

The characteristic of very high-performance concrete (VHPC)

The characteristic of very high-performance concrete (VHPC)

Multi-Criteria Risk Analysis of Ultra-High Performance Concrete Application in Structures

A comparative study on the differential axial shortening in high‐rise buildings

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