The Open Construction & Building Technology Journal最新文献_第3页

Response Study of a Tall San Diego, California Building Inferred from the M7.1 July 5, 2019 Ridgecrest, California Earthquake Motions 2019年7月5日，加利福尼亚州里奇克莱斯特市，从7.1级地震运动推断出加州圣地亚哥一座高层建筑的响应研究

The Open Construction & Building Technology Journal Pub Date : 2022-06-23 DOI: 10.2174/18748368-v16-e2108040

Mehmet Çelebi, D. Swensen

引用次数: 3

Improving the Seismic Response of Tall Buildings: From Diagrid to Megastructures and Mega-Subcontrol Systems 提高高层建筑的地震反应:从网格到巨型结构和巨型子控制系统

The Open Construction & Building Technology Journal Pub Date : 2022-06-23 DOI: 10.2174/18748368-v16-e2201030

D. Faiella, M. Argenziano, Elena Mele

{"title":"Improving the Seismic Response of Tall Buildings: From Diagrid to Megastructures and Mega-Subcontrol Systems","authors":"D. Faiella, M. Argenziano, Elena Mele","doi":"10.2174/18748368-v16-e2201030","DOIUrl":"https://doi.org/10.2174/18748368-v16-e2201030","url":null,"abstract":"\u0000 \u0000 Diagrid structures, widely used for the tall buildings of the third millennium, are characterized by a very effective behaviour in the elastic field due to the grid triangulation. In particular, under horizontal actions, axial forces and deformations mainly arise in the structural members of the diagrid, thus resulting in the reduction of the shear lag effect and racking deformations. The response to incremental horizontal actions beyond the plastic threshold, however, shows a poor plastic redistribution capacity, with consequent low values of global ductility, in spite of a significant design overstrength.\u0000 \u0000 \u0000 \u0000 In this paper, it is proposed to exploit the high elastic efficiency of the diagrid type and use a vibration control system, based on mass damping mechanism with large mass ratios, to reduce a priori the inelastic demands due to seismic actions.\u0000 \u0000 \u0000 \u0000 Starting from the analysis of the seismic behavior of archetype diagrid buildings, a case study is selected to assess the effectiveness of the proposed motion-based design approach. For this purpose, the diagrid is first transformed into a megastructure (MS) configuration by densifying the diagonal elements at the most stressed corner areas and transfer floors, suitably chosen. Then, the exterior mega-frame is detached from interior sub-structures, thus allowing for a relative motion between the two structural portions according to a “mega-sub-structure control system” (MSCS), which activates the mass damping mechanism.\u0000 \u0000 \u0000 \u0000 Time-history analyses carried out on simplified lumped-mass models confirm the effectiveness of the proposed strategy in reducing the seismic response.\u0000 \u0000 \u0000 \u0000 Finally, the practical feasibility of the MSCS and engineering solutions for the relevant structural organization are discussed.\u0000","PeriodicalId":272529,"journal":{"name":"The Open Construction & Building Technology Journal","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117218211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Understanding the Characteristics of Regional Building Construction Systems 了解区域建筑施工系统的特点

The Open Construction & Building Technology Journal Pub Date : 2022-04-07 DOI: 10.2174/18748368-v16-e2202100

Satoshi Yoshida

{"title":"Understanding the Characteristics of Regional Building Construction Systems","authors":"Satoshi Yoshida","doi":"10.2174/18748368-v16-e2202100","DOIUrl":"https://doi.org/10.2174/18748368-v16-e2202100","url":null,"abstract":"\u0000 \u0000 Pandemics have increased the importance of understanding future building construction systems' regional characteristics due to the increasing number of country-specific industrial systems and the growing potential for international collaboration through video conferencing.\u0000 \u0000 \u0000 \u0000 This study aims to develop a method to objectively understand the characteristics of regional building construction systems.\u0000 \u0000 \u0000 \u0000 The “architecture concept” tool was used to develop the proposed idea and ensure objectivity. This concept focuses on the interdependence of the components to be created. However, considering that all construction projects are conducted under different conditions, a relative discussion between projects tends to exist. This study aims to transcend this relative discussion to achieve sophistication in the proposed approach. Therefore, this work focuses on a detailed view of the most complex construction parts standardized in each region.\u0000 \u0000 \u0000 \u0000 As a case study, we examined the approaches adopted in the UK and Japan, i.e., in Europe and Asia, respectively. The proposed concept confirmed that the approaches adopted in the UK exhibited modular characteristics, whereas those in Japan had integral characteristics pertaining to the fundamental design concept of construction.\u0000 \u0000 \u0000 \u0000 This study developed a method for the utilization of the characteristics of each region by understanding the trends of the unique fundamental design concepts of building construction in the UK and Japan. Based on the results, the characteristics of many other regions in the construction industry can be understood.\u0000","PeriodicalId":272529,"journal":{"name":"The Open Construction & Building Technology Journal","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127874104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Design of Steel Exoskeleton Equipped with BRBs for Seismic Upgrading of RC Frames 钢筋混凝土框架抗震升级用brb钢外骨骼设计

The Open Construction & Building Technology Journal Pub Date : 2022-03-14 DOI: 10.2174/18748368-v16-e2201060

F. Barbagallo, M. Bosco, Erika Licciardello, E. Marino, P. Rossi

{"title":"Design of Steel Exoskeleton Equipped with BRBs for Seismic Upgrading of RC Frames","authors":"F. Barbagallo, M. Bosco, Erika Licciardello, E. Marino, P. Rossi","doi":"10.2174/18748368-v16-e2201060","DOIUrl":"https://doi.org/10.2174/18748368-v16-e2201060","url":null,"abstract":"\u0000 \u0000 The main part of the Italian building stock was mainly erected between ‘70s and ‘80s of the previous century. Hence, existing RC buildings present structural deficiencies because were designed according to old standards and often only considering gravity loads.\u0000 \u0000 \u0000 \u0000 The goal is to evaluate the seismic performance of these structures and compare it to the minimum standards required by current legislation.\u0000 \u0000 \u0000 \u0000 To achieve this goal, first, a building with RC framed structure has been designed according to the codes and the practice in force at the time of construction. From this building two case study frames have been derived considering different mechanical properties of the concrete. Then, the addition to the existing RC building of a steel exoskeleton equipped with BRBs is proposed for seismic upgrading of these structures and the effects of this intervention on the seismic performance of the frames are investigated. A design method of seismic upgrading interventions by exoskeleton and BRBs is developed and applied to the two case study frames. The design method is calibrated determining the seismic response of the upgraded frames by means of non-linear dynamic analyses.\u0000 \u0000 \u0000 \u0000 The parametric analysis allowed the identification of the combinations of the parameters that lead to the achievement of the performance objectives at Near Collapse and Significative Damage limit states. Both the frames designed according to this combination of design parameters show suitable seismic performance for both considered limit states.\u0000 \u0000 \u0000 \u0000 Finally, the combination of the parameters ruling the design method is determined as the most economical among those that allow the fulfilment of the requirements at NC and SD limit state.\u0000","PeriodicalId":272529,"journal":{"name":"The Open Construction & Building Technology Journal","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127666864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Open Construction &amp; Building Technology Journal最新文献

The Open Construction & Building Technology Journal最新文献