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10/14/2020 Structural analysis using three-component acceleration time - Google Scholar

https://scholar.google.com/scholar?hl=en&as_sdt=0%2C5&q=Structural+analysis+using+three-component+acceleration+time&btnG= 1/1 W Partono, YA Priastiwi, ID Atmanto… - MATEC Web of …, 2019 - matec-conferences.org

Research on the improvement of Indonesian seismic hazard maps has already been carried out by the National Center for Earthquake Studies in 2017. One important global data obtained from this research related with all earthquake sources mechanism which might be used for building design and evaluation. Based on this research there are two important and closest earthquake sources to Semarang, Lasem fault (strike slip mechanism) and

Semarang fault (reverse mechanism). This paper presents the dynamic structural … Cited by 1 Related articles All 4 versions

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Structural analysis using three-component acceleration time histories caused by

shallow crustal fault earthquakes with a maximum magnitude of 7 Mw

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CONFERENCE GENERAL INFORMATION

Title of the conference : International Conference on Sustainable Civil Engineering Structures and Construction Materials (SCESCM) 2018

Date of the conference : September 5-7, 2018

Location of the conference : Royal Ambarrukmo HoteL, Yogyakarta, Indonesia Scientific Editors :

Dr. Ali Awaludin (CHAIR)

Department of Civil and Environmental Engineering Faculty of Engineering

Universitas Gadjah Mada

Grafika Street, No. 2, UGM campus Sleman, Yogyakarta, 55281

Indonesia

Email: [email protected] Prof. Dr. Takashi MATSUMOTO

Laboratorium of Bridge and Structural Engineering

Devision of Engineering and Policy for Sustainable Environment Faculty of Engineering

Hokaido University

Kita 13, Nishi 8, Kita-ku, Sapporo 060-8628 Hokkaido

E-mail: [email protected] Dr. H.M. Jonkers

CiTG - Microlab

Delft University of Technology P.O. Box 5048

NL - 2600 GA Delft The Netherlands

E-mail: [email protected] Prof. Dr. Stephen Pessiki

Department of Civil and Environmental Engineering 13 E. Packer Avenue

Lehigh University Bethlehem PA 18015 USA

E-mail: [email protected]

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Dr. Suprapto Siswosukarto

Department of Civil and Environmental Engineering Faculty of Engineering

Universitas Gadjah Mada

Grafika Street, No. 2, UGM campus Sleman, Yogyakarta, 55281

Indonesia

Email: [email protected] Dr. Angga Fajar Setiawan

Department of Civil and Environmental Engineering Faculty of Engineering

Universitas Gadjah Mada

Grafika Street, No. 2, UGM campus Sleman, Yogyakarta, 55281

Indonesia

Email: [email protected] Kartika Nur Rahma Putri, S.T., M.T.

Department of Civil and Environmental Engineering Faculty of Engineering

Universitas Gadjah Mada

Grafika Street, No. 2, UGM campus Sleman, Yogyakarta, 55281

Indonesia

Email: [email protected]

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10/14/2020 MATEC Web of Conferences

https://www.matec-conferences.org/articles/matecconf/abs/2019/07/contents/contents.html#section_10.1051/matecconf/201925805001 1/9

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MATEC Web of Conferences

Volume 258 (2019)

International Conference on Sustainable Civil Engineering Structures and Construction Materials (SCESCM 2018)

Yogyakarta, Indonesia, September 5-7, 2018

A. Awaludin, T. Matsumoto, S. Pessiki, H. Jonkers, S. Siswosukarto, A. Fajar Setiawan and K. Nur Rahma Putri (Eds.)

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Open Access

Statement of Peer review

Published online: 25 January 2019 PDF (95.5 KB)

Open Access

About the conference

Published online: 25 January 2019 PDF (2.27 MB)

Journals Books Conferences 

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+ Green Construction Materials and Technologies, Environmental Impact and Green Design, Local and Recycled Materials

+ Construction Management, Construction Method and System, Optimization and Innovation in Structural Design

+ Forensic Engineering, Structural Health Monitoring System, Assessment and Retro tting, Disaster Mitigation and Restoration + Hybrid and Composite Structures, Smart Materials and Structures, Special Structures

- Structural Dynamics and Earthquake Engineering, Structures in Severe Environment, Structural Analysis

Open Access

An Analysis of elastic and inelastic lateral torsional buckling of web-tapered I beams using the nite element method

⁰⁵⁰⁰¹

Paulus Karta Wijaya, Cecilia Lauw Giok Swan and Ghassani Sadrina Noor Published online: 25 January 2019

DOI: https://doi.org/10.1051/matecconf/201925805001 PDF (1.639 MB) References

Open Access

An Investigation on Mechanical Properties and Damping Behaviour of Hardened Mortar with Rubber Tire Crumbs (RTC)

⁰⁵⁰⁰²

Restu Faizah, Henricus Priyosulistyo and Akhmad Aminullah Published online: 25 January 2019

 Green Construction Materials and Technologies, Environmental Impact and Green Design, Local and Recycled Materials

 Construction Management, Construction Method and System, Optimization and Innovation in

Structural Design

 Forensic Engineering, Structural Health Monitoring System, Assessment and Retro tting, Disaster Mitigation and Restoration

 Hybrid and Composite Structures, Smart Materials and Structures, Special Structures

 Structural Dynamics and Earthquake Engineering, Structures in Severe Environment, Structural Analysis

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Structural analysis using three-component acceleration time histories caused by shallow crustal fault earthquakes with a maximum magnitude of 7 Mw

05029 Windu Partono, Yulita Ami Priastiwi, Nuroji, Indrastono Dwi Atmanto, Bambang Pardoyo, Trinita Octaviani Gultom and Yanuar Tampubolon

Published online: 25 January 2019

Open Access

The attenuation coe cient of barite concrete subjected to gamma-ray radiation

05030

Gogot Setyo Budi, Hurijanto Koentjoro, Joshua Wijaya and Evan Filbert Sikomena Published online: 25 January 2019

Open Access

Two nodes cusp geometry beam element by using condensed IGA

⁰⁵⁰³¹

Buntara Sthenly Gan and Ay Lie Han Published online: 25 January 2019

Open Access

The e ect of water binder ratio on strength development of class C y ash geopolymer mortar prepared by dry geopolymer powder

05032

Arie Wardhono

Open Access

Risk assessment for forest re in Brunei Darussalam

⁰⁵⁰³³

Shams Shahriar, Zahran El-Said M. M., Said Safwanah N. M., Hui Kho J., Naderah N. D. H. M. F. Lee and N. H. H. Hasim

Open Access

A Study on the E ect of Adjacent Segments of a Steel l-Beam with Lateral Supports

on Its Critical Moment

⁰⁵⁰³⁴

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* Corresponding author: [email protected]

Adhesion characteristics of geopolymer mortar to concrete and rebars

Sanjay PAREEK^1,*, Hiroo Kashima^{1, 2}, Ippei Maruyama² and Yoshikazu Araki²

1Department of Architecture, College of Engineering, Nihon University, Koriyama 963-8642, Japan

2Department of Environmental Engineering and Architecture, Graduate School of Environmental Studies, Nagoya University, Nagoya 464-8601, Japan

Abstract. In recent years, geopolymers have gained a wide attention as highly ecological-friendly building materials, having a capability to cut down 70% of CO2 emissions in comparison to the ordinary cement concrete. In this study, geopolymer mortars are proposed as repair materials for reinforced concrete structures, due to their superior acid resistance, heat resistance and high strength in comparison to the existing repair materials. The objective of this study is to investigate the adhesion properties of geopolymer mortars to concrete substrates with different surface treatments, steel plates and rebars. As a result, the geopolymer mortars are found to have excellent adhesion properties to dry concrete substrates, steel plates and rebars. Concrete substrates treated with grinder, further enhanced the adhesion properties of geopolymer mortars. On the other hand, poor adhesion of geopolymer mortars to wet concrete substrates was observed due to the presence of water on the interfacial zone, which decreased the alkali concentration of the geopolymer, resulting in lower adhesion strength. In general, geopolymer mortars are found to have suitable adhesion properties to the concrete substrates, steel plates and rebars and can be applied as repair materials for reinforced concrete structures.

1 Introduction

In order to build a sustainable society, it is highly important to facilitate long-term use of existing building stocks, in addition to reducing the consumption of natural resources and cutting down industrial waste production and CO2 emissions. For achieving this goal, it is necessary to develop eco-friendly materials for the repair and strengthening of reinforced concrete (RC) structures.

Accordingly, there is a further need to develop new materials and technologies for RC structures in the construction industry.

The repair materials for RC structures are mainly classified into 3 categories: i) polymer/resin based materials; ii) polymer-cement based materials and; iii) cement based materials [1]. Mainly for RC structures, polymeric or polymer-cement based materials are used as repair materials, having poor heat, fire and acid resistance along with higher emissions of CO2 during the manufacturing and disposal process [1, 2].

In recent years, geopolymers (GP) have gained a wide

attention as environmentally friendly building materials [3]. GP can utilize a large amount industrial waste such as fly ash (FA) as raw material and can help to cut down CO2

emissions up to 75% in comparison to ordinary cement concrete [4-6]. In addition, GP having high strength of 100MPa, high acid and Cl^- penetration resistance, superior refractory properties that cannot be attained by polymer- cement and ordinary cement concrete are reported [7-10].

The authors have been studying the strength characteristics and chemical resistance of GP and adhesion properties to steel plate, aiming for practical use of GP as building material [11-13]. In order to further expand the use of GP as repair material for RC structures, the adhesion characteristics of GP mortar to concrete substrates, steel plates and rebar need to be clarified. Until now, several studies have been conducted using GP as a repair material and are found to have excellent adhesion strength and durability in comparison to cement based repair materials [14-17]. Furthermore, Caroline et al. have pointed out that adhesion of GP to concrete substrate is greatly influenced by the surface treatment and showed higher adhesion strength to sand-blasted concrete , 0 (2019)

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A mockup unit of the an-eco budget bamboo chalet: design and cost estimation analysis

Hazrina Mansor^{1, *}, Nursuzila M. A. A. Wahab², Yazmin Sahol Hamid¹, and Mohd Khairul Kamarudin¹

1Senior Lecturer, Faculty of Civil Engineering, Universiti Teknologi Mara (UiTM) Shah Alam, Selangor, Malaysia.

2MSc. Student, Faculty of Civil Engineering, Universiti Teknologi Mara (UiTM) Shah Alam, Selangor, Malaysia.

Abstract. To succeed by 2050, Malaysia visions would need to be ecologically sustainable. To align with this strategy, a mock-up unit of an-eco budget bamboo chalet is proposed and designed with the aim to provide an affordable and sustainable chalet using local sustainability features and expand the use of natural resources. A sustainable bamboo chalet requires proper initial treatments and preservation in maintaining its esthetic appearance and strength. Otherwise, it can be less durable and under certain circumstances would incur high maintenance cost to the owner. In this study, the proposed unit of an eco-budget bamboo chalet is designed and analyzed using the Staad Pro V8i software. The projection cost of the bamboo chalet in the next 25 years is studied comparatively in which involves a comparison of using a different material, i.e. concrete with the same built-up area.

The bamboo chalet had a built-up land area of approximately 7.5 m x 7 m (53 m²) and is made of 95%

bamboo which comprises of two different species, i.e. Bambusa Vulgaris and Dendrocalamus Asper Bamboo. The results showed that construction material of the chalet saves up to 18% more when using bamboo compared to concrete. However, the total projected cost of the chalet for the next 25 years by using bamboo was 14% higher compared to concrete. Therefore, emphasis on the usage of bamboo for long-term strategy is required to maintain and control the gradual trend cost incurred if green building is to be built in Malaysia.

1 Introduction

Ever-since 1991, sustainable development, has been Malaysia’s national focal point, with the aim to promote green growth technology and renewable energy by encouraging energy efficiencies in buildings, industries and households. Moreover, with the substantial spurs on the green business, demand from the industrial regulations and economic climate have indirectly caused tremendous progress towards its vision [1].

Issues on the environmental degradation and sophisticated recycling systems, that is caused by varieties of waste management that tumble into rivers, has won researchers attention and hence encourages more researchers to focus on eco-friendly construction materials [2-4].

In line with the Malaysia’s vision, one of the objectives of this paper is to estimate the actual total cost of utilising a type of non-conventional material namely bamboo as the main construction material for a small structure (such as chalet). More importantly, the main purpose of this paper is to evaluate the cost effectiveness of using this material over the whole life cycle of the structure and compare it with conventional material, thus

giving a better picture to designers and engineers in applying such material as the main construction material.

Therefore, in this project, the estimated construction cost, projected maintenance cost and overall life cycle cost of an eco-budget chalet with bamboo as the main construction material was compared with the same chalet design but different main construction material which is reinforced concrete. Beforehand, an investigation on the mechanical properties of the two different types of bamboo available in Malaysia was conducted to obtain its compression and bending strengths. These properties including others which were obtained through literature review (Young’s Modulus and Poisson’s ratio) were then used in conducting structural analysis of bamboo-based and reinforced concrete-based chalet structure using Staad Pro V8i. After both structures have been validated, the estimation cost of construction, cost of current annual maintenance practices, and the life cycle cost projection were calculated and compared.

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Evaluatıon of Pervıous Concrete Utılızıng Recycled HDPE as Partıal Replacement of Coarse Aggregate wıth Acrylıc as Addıtıve

Neslyn Lopez^1,*, Emilla Collado¹, Lois Alexandra Diacos¹, and Harold Dave Morente¹

1Malayan Colleges Laguna, Pulo Diezmo Road, Cabuyao City, Laguna 4025, Philippines

Abstract. Pervious concrete is an eco-friendly alternative and is beneficial to providing good rainwater drainage in order to prevent flooding. But the application is limited to lower trafficked roadways and often times disregarded due to its low strength capabilities. This study investigates on the effect of High-denstiy Polyethylene as partial replacement of coarse aggregates on the physical and mechanical properties of Acrylic Polymer Pervious Concrete (AcPPC). Two different coarse aggregate sizes were evaluated which are ½” and ¾” with varying ratios of 10%, 20%, and 30%. It was determined that the partial replacement of recycled HDPE caused an increase in the porosity and permeability of the AcPPC. However, it decreased the AcPPC’s compressive and flexural strength. Only the ½” 10% HDPE modified Pervious Concrete with 15% Acrylic Additive (PCHA) achieved a compressive strength that is within the range of the acceptable compressive strength for pervious concrete. While for the flexural strength, both the ½” 10% PCHA and ¾”

10% PCHA was within the standard values for flexural strength of pervious concrete. Thus, making the ½”

10% PCHA as the optimum mix in this study. The application of PCHA is limited to typical application of a pervious concrete.

1 Introduction

Over the decades, human population continues to grow and expand. And as the said population increases, advances in technology continuously happen.

Breakthroughs in technology happen at a frequent rate.

One product of today’s innovation in technology is the paving of roads. These said roads are made of impermeable surfaces such as asphalt, concrete, traditional stone, and brick, among other possible pavers.

These impermeable or impervious concrete surfaces do not allow water to pass or penetrate through. Today, it is very common to see our roads as paved surfaces, even in rural regions.

Unfortunately, society’s development has its consequent drawbacks. Aside from the obvious waste produced by human activities, modernization sometimes poses a threat to our environment and its natural cycles. Among the various downsides of the negligence to our environment is the common event of flooding and drainage failure.

According to [1], the effect of impervious pavement is not only limited to flooding. Some effects of these surfaces on the environment are (1) Pollution of surface water; when runoff occurs, it gathers pollutants and flows directly into bodies of water such as rivers, lakes, etc.; (2) Water table is not adequately recharged; on a

natural condition or in permeable surfaces, water can penetrate with ease, therefore, before reaching the groundwater, it is recharged or simply filtered. However, on impermeable surfaces, water is hindered to penetrate, groundwater is consequently used faster than it is recharged; (3) Formation of stagnate water puddles, and;

(4) Heat island effect, as stated by EPA— United States Environmental Protection Agency [2] the interpretation of the heat island effect is simply making an “island”

with temperatures much higher than that of its environment. This is due to the heat-absorbing property of asphalt, concrete or any other paving material. It simply gathers heat during the day and releases it at night [1].

Fortunately, the construction industry has adapted to the idea of creating and using Pervious Concrete (hereby referred to as PC), also known as permeable concrete, to address the various potential impermeable surface complications especially on paved roads. Pervious concrete is the no-fines, porous, gap-graded, and enhanced porosity concrete [3]. Interconnected void spaces are very evident in typical pervious concrete.

These voids act as an opening for air and water to easily pass through, allowing it to seep into the ground, thus resulting to a fast drainage of other large volumes of water, preventing runoffs from occurring [4].

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Simple innovative comparison of costs between tied-arch bridge and cable-stayed bridge

Järvenpää Esko^1,*, Quach Thanh Tung²

1WSP Finland, Oulu, Finland

2WSP Finland, Ho Chi Minh, Vietnam

Abstract. The proposed paper compares tied-arch bridge alternatives and cable-stayed bridge alternatives based on needed load-bearing construction material amounts in the superstructure. The comparisons are prepared between four tied arch bridge solutions and four cable-stayed bridge solutions of the same span lengths. The sum of the span lengths is 300 m. The rise of arch as well as the height of pylon and cable arrangements follow optimal dimensions. The theoretic optimum rise of tied-arch for minimum material amount is higher than traditionally used for aesthetic reason. The optimum rise for minimum material amount parabolic arch is shown in the paper. The mathematical solution uses axial force index method presented in the paper. For the tied-arches the span-rise-ration of 3 is used. The hangers of the tied-arches are vertical-The tied-arches are calculated by numeric iteration method in order to get moment-less arch. The arches are designed as constant stress arch. The area and the weight of the cross section follow the compression force in the arch. In addition the self-weight of the suspender cables are included in the calculation. The influence of traffic loads are calculated by using a separate FEM program. It is concluded that tied-arch is a competitive alternative to cable-stayed bridge especially when asymmetric bridge spans are considered.

1 Introduction

Arch bridge is perhaps the best known bridge type. It came to use 2000 years ago [1]. Arches can be classified in many ways like deck arch bridge, tied-arch bridge, through arch bridge, truss arch and most recently network arch. The span range of arch bridge has today reached 552 m and longer spans are designed. The modern construction material is steel, often used as composite structure with concrete. Many studies have been published lately about arches. Only little has been written about theoretic and practical limits of arch bridges.

Already in forties an article was published where the limit of 1000 m of concrete was found. The allowable stress of the concrete was 15 MPa [2].

Cable-stayed bridge has been a competitive bridge type during recent years. The authors have an opinion that it will be a good time to start to think how competitive arches could be, especially tied-arch bridges.

In this article tied-arch bridge and cable-stayed bridge have been compared to each other using axial force index method. Four tied-arch bridge alternatives and four cable- stayed bridge alternatives are studied using the same total length of the bridge and the same span lengths with the same effective width of the deck. Only load bearing material in the longitudinal direction of the superstructure is the basis of comparison.

All bridges have steel and concrete composite deck The bridges have six vehicle lanes. The traffic load follows AASTHO design codes. Multiple presence load factor of

0.65 is used.

2 Span ranges of tied-arch and cable- stayed bridges

Tied-arch bridge span range used have been from 50 m to 550 m. Typical span length for highway bridges is fro m 75 m to 250 m. The competitive span range of cable- stayed bridge has been from100 m to 1200 m. Typical spans lengths have been from 150 m to 500 m. The development of cable-stayed bridges during last three decades has been powerful, especially in construction and cable technology [3]. The development of arch bridges has been waiting. In China truss-type arch ribs and steel box arches have broken records [4], [5]. Many resent articles handle about network arches and especially their optimal suspender arrangements. Anyhow, the rise of arch is the first priority of the optimal solution, because the arch itself represents half of structural steel amount of the longitudinal load-bearing structures.

3 Cost comparison method

3.1 Design basis of the alternatives

This study was prepared in order to get general understanding about the reasons and differences of costs between tied-arch bridge and cable–stayed bridge. The basis for the study is that all the bridge alternatives are balanced structures for permanent load. The shape of arch , 0 (2019)

MATEC Web of Conferences258 https://doi.org/10.1051/matecconf/201925802015

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