DSpace collection: 期刊論文

資訊建模與計算機協助合作工作導入高年級設計工作室教學方法之研究

title: 資訊建模與計算機協助合作工作導入高年級設計工作室教學方法之研究 abstract: 隨著網路教程和「生成式人工智慧」技術的快速發展，受過當前建築學院訓練的學生能輕易製作出令人驚嘆的設計概念圖。然而他們也容易陷入與現實脫節的技術操作練習，資訊技術的介入鮮有協助學員對環境、構造、空間涵構或使用意義的思辨產生影響。因此，本研究旨在探討如何將「資料建模」、「物件導向概念」、形態演算法以及「數位孿生」等技術和方法融入設計課程，培養非資訊技術背景的建築設計學員通過資訊科學方法發展設計。本研究採用行動研究法，區分為3個階段：1）檢索並分類使用資訊科學技術和生成式人工智慧協助空間設計的相關文獻。2）建構「智慧資訊建築工作室（IIA）」教學框架，IIA框架包括4個設計教學模組：譜記、圖示、採樣、擬合，以及2個技術教學模組：資訊建模分析、虛實整合原型驗證。3）將IIA實施於高年級建築系學生的18周設計課程當中，並根據檔案評量法收集學生作品和反饋並結合教師觀察和專家評估分析後，本研究提出5項應用「計算機協助合作工作」的設計教學策略建議供後續研究者參考，包括：1）譜記涵構並格式化資瞭以逃離預設框架、2）重新裝配圖示化的執行緒工作流程、3）採樣自動化並迭代生成特徵資料、4）混合媒材的原型實踐與虛實擬合、5）在迭代差異與優化中反思。

Suppression of train-induced resonance in high-speed railway truss bridges

title: Suppression of train-induced resonance in high-speed railway truss bridges abstract: Train-induced dynamic resonance poses a significant challenge to the integrity and serviceability of high-speed railway bridges, with consequences including structural degradation, reduced passenger comfort, and a shortened operational lifespan. Although resonance and cancellation mechanisms are well established for simple beam configurations, mitigating resonance effects, particularly for higher-order vibrational modes in complex bridge systems, remains an unresolved issue. This paper proposes an integrated framework that combines wavenumber-based spectral envelope analysis, finite-element modeling, and train-bridge interaction simulations to address this problem. The spectral approach facilitates the direct identification of critical span lengths that amplify resonant response and optimal spans that promote its cancellation. Numerical results indicate that for simply-supported truss bridges, resonant excitation is effectively mitigated when the span length is 2.5 times the carriage length. In contrast, for continuous truss bridges, higher-mode resonances persist at these optimal spans, requiring the implementation of supplemental dynamic absorbers for effective control. This study offers a robust computational methodology to guide the design of high-speed railway truss bridges for enhanced dynamic performance and long-term durability.

Investigation of Dynamic Coupling Effect on Bridge Frequency Measurement

title: Investigation of Dynamic Coupling Effect on Bridge Frequency Measurement abstract: In this study, a multidisciplinary approach combining a numerical analysis in three dimensions and a laboratory test is developed to investigate the dynamic coupling effect as induced by vehicle–bridge interaction in the indirect measurement. To unveil such dynamic coupling and its influence on the frequency measurement, a single degree-of-freedom test vehicle is exclusively designed with adjustable frequency, which is a low-cost, easy-to-use, and reliable tool for measuring beam frequencies in the laboratory while providing valuable data for validating numerical models, calibrating sensors, and evaluating bridge performance. From the multidisciplinary analysis, the shifts of frequencies for both vehicle and bridge are consistently demonstrated as a result of vehicle–bridge interaction effect. Moreover, for the identification of higher-order bridge frequencies, the contact-point response works better than the vehicle’s response, even with shifted frequencies being observed in the three-dimensional numerical results. As an extension, a parametric study is conducted numerically to include various practical conditions, including different types and boundary conditions of a bridge as well as pavement irregularity.

Dispersion Analysis in Periodically Coupled Train–Bridge Systems

title: Dispersion Analysis in Periodically Coupled Train–Bridge Systems abstract: This study employs the wave dispersion relation of periodic structures to demonstrate the dual resonance mechanism occurring as a train traverses a series of bridges. Dual resonance occurs when the resonant speeds of both the train and the bridge coincide, leading to resonance in the bridge and progressively amplifying the train’s responses from the front to the rear carriages. This phenomenon involves a complex interaction between the bridge’s temporal resonance and the train’s spatial periodicity. This interaction creates a unique spatiotemporal vibration pattern. To understand the wave dispersion in this periodically coupled system, we model it as two interconnected spring-mass systems connected by contact springs. The analytical approach allows us to identify the key parameters governing the wave dispersion relation and wave-transmitting phenomena between two periodic structures. The wave dispersion analysis reveals that continuous beams have broader passbands, allowing them to transmit more waves and vibrations from moving trains than simply supported beams. This reduces resonance and leads to smoother system performance for continuous beams. Consequently, when a train travels on an equal-span continuous bridge at its resonance speeds, its vibrations can be efficiently transmitted to the bridge through these passbands, thereby mitigating resonance.

游擊的地景：教學田野中的再現空間

title: 游擊的地景：教學田野中的再現空間 abstract: 在碩士班學生接受大學部的設計訓練後，高等建築設計課程作為學生面臨「設計研究」前的銜接角色，在教學情境中有其重要的訓練目標。其中，設計研究方法所需要面對的文獻閱讀與梳理、基地現象觀察、建立研究方法、書寫與辯證的能力等，都是高等建築設計課程中需要以系統性的教學方式，給予學生的重要能力。本研究試圖以校園和學生生活的場域為基地，從相關文獻閱讀與集體討論中建立「論述架構」與「游擊形式」的「觀點」；進入基地進行有意圖的「閱讀地景」；並根據學生個人研究方向，在特定的觀點中，以自身和集體的需求進行「命題」工作；最後，作品的集體以學生生活為主題進行策展的「再現」，產出的內容同時作為校園生活空間的空間計畫書。期待於教學實踐研究中，給予學生整備自身設計研究方法的能力。

高年級建築工作室設計教學導入運算方法與AI工具的反思：IIA工作室教學實踐

title: 高年級建築工作室設計教學導入運算方法與AI工具的反思：IIA工作室教學實踐

Characterization of dynamic coupling induced shifts of frequencies in vehicle-scanning method

title: Characterization of dynamic coupling induced shifts of frequencies in vehicle-scanning method abstract: A comprehensive strategy combining theory and experiment is proposed to characterize the dynamic coupling induced shifts of vehicle and bridge frequencies through both experimental investigation and numerical validation, in which the effect of vehicle-bridge interaction is theoretically incorporated in the vehicle-scanning method based on the experimental model. It is known that the measurement of bridge frequencies plays an important role in structural health monitoring as the shift of frequency can be served as an indicator of possible damage occurring in a bridge. Nevertheless, the attention has been mainly drawn on the accuracy improvement in developing the vehicle-scanning method so far, with limited discussion of dynamic coupling effect on the frequency shifts. As such, a combined theoretical–experimental approach is presented to show that the influence of vehicle-bridge interaction results in the coupled frequencies of a vehicle-beam system using the vehicle-scanning method, and adopting a heavy lumped test vehicle can lead to the underestimated bridge frequency and overestimated vehicle frequency. As a new finding, the effect of rolling frequency is experimentally observed in the vehicle spectrum for the first time.

Hybrid vehicle scanning techniques tied-arch railway bridges

title: Hybrid vehicle scanning techniques tied-arch railway bridges abstract: Regular monitoring of the hanger system is essential for preserving structural integrity in tied-arch bridges. This proactive monitoring enables preventive maintenance and early detection of hanger damage. To confront this issue, we propose a novel scanning method for assessing the impact of damaged hangers on the dynamic behaviour of single-span tied-arch railway bridges. Using each hanger as a positional reference, this method employs an instrumented vehicle as a mobile scanner to indirectly acquire vibration data from the traversed bridge deck. The hybrid approach integrates vehicle-bridge interaction (VBI) dynamics, vehicle scanning method (VSM), and moving windowed Fourier transform (mw-FT) technique to generate time–frequency spectrograms from the collected signals. In this representation, the time axis indicates the duration of the inspection vehicle traversing the bridge deck. By analysing frequency shifts within the spectrogram, we can identify damaged hangers through observed variations in frequency content over time. Numerical studies demonstrate the efficacy of the proposed hybrid vehicle scanning technique in detecting potential hanger damage in tied-arch railway bridges.

Resonance reduction for linked train cars moving on multiple simply supported bridges

title: Resonance reduction for linked train cars moving on multiple simply supported bridges abstract: The dynamic interaction of a moving train over a series of railway bridges with equal spans can result in a coupled vibration problem of wave transmission between two periodic structures. Dual resonance occurs when both systems vibrate in phase and the train travels at a resonant speed. The objectives of this paper are to (1) develop an active pitching resonator (APR) to attenuate resonance waves in a train; (2) study the dispersion relation for pitching motion control of periodically linked train cars; (3) investigate the key parameters that affect the dispersion band gaps of wave attenuation in a train; (4) present an active vibration cancellation method to enhance the control performance of the APR; and (5) demonstrate the effectiveness of using the optimal APRs to reduce resonance of a moving train. Through dispersion analysis, the optimum APR can not only shift the target frequency level away from resonance of a moving train, but also create a wide resonance band gap to reduce wave transmission in the train. Finally, the effectiveness of the optimum APR unit in reducing the resonance and attenuating the waves of a train travelling over multiple-span simple beams is demonstrated by dynamic finite element analysis of the train-bridge interaction.

煤煙林影共徘徊－嘉義車庫園區的美麗與哀愁

title: 煤煙林影共徘徊－嘉義車庫園區的美麗與哀愁

克勞德鏡中的避世風景：關於「了了礁溪」與「自然洋行」的建築對話

title: 克勞德鏡中的避世風景：關於「了了礁溪」與「自然洋行」的建築對話

建築藝術家的教育－漢寶德先生與南藝建築藝術研究所

title: 建築藝術家的教育－漢寶德先生與南藝建築藝術研究所

漢寶德校長與建築繁殖場的成立－呂理煌訪談

title: 漢寶德校長與建築繁殖場的成立－呂理煌訪談

Fluid Grey: A Co‐Living Design for Young and Old Based on the Fluidity of Grey Space Hierarchies to Retain Regional Spatial Characteristics

title: Fluid Grey: A Co‐Living Design for Young and Old Based on the Fluidity of Grey Space Hierarchies to Retain Regional Spatial Characteristics abstract: Architectural design and urban renewal that adapt to an ageing society and are localized are urgent needs around the world. On the other hand, the concept of grey space, which refers to transitional space and is an in‐between concept, has been proposed since the 1980s, but few studies have further explored its hierarchy, fluidity, and relationship with regional characteristics. Therefore, this study hopes to use the fluidity of the grey space hierarchy to solve the problem of design that adapts to an ageing society and preserves regional characteristics. This study mainly focuses on the spatial characteristics of Beitou Heart Village, summarizes five grey space hierarchies and fluidity modes, and finally designs social housing for young and old cohabitation in a bottom‐up manner based on them, restoring local unique neighborhood care and multi‐ethnic communication methods. There are three innovations in this study: (1) defining the division method of the grey space hierarchy; (2) exploring the richness and scalability of the grey space hierarchy in terms of fluidity; (3) using the grey space hierarchy to achieve neighborhood care and multi‐ethnic communication, making social housing for urban renewal more people‐oriented and retaining spatial regional characteristics. This paper may provide a theoretical foundation and practical help for grey‐space‐based design and urban renewal in the future.

藝遊微境－參與式構築實作教育在興仁國小的實踐

title: 藝遊微境－參與式構築實作教育在興仁國小的實踐 abstract: 構築，乃是將建築材料透過結構的詩意組裝，來形成具有美學性、公共性與社會性的環境空間創作。本研究秉持「做中學」的教育理念，透過構築實作的方式進入社區實踐，認識社區的真實需求，提升社區對於環境藝術的認識。本研究透過參與式設計過程，引發國小孩童對於校園環境、身體感知與肢體探索間的協調整合發展。以共融式設計的理念作為啟發，把環境視為是第三位教師，將校園轉化成可供學童探索自我、觀察環境，並發展出主動學習意志的場域。這個操作與學習的對象是多向的；首先，透過參與式遊戲的引導，逐步找到孩童對於環境的感知與想像；這對大學生而言，也是一個邊做邊學的旅程；而對主持教師而言，如何掌握大學生與學童互動所激盪出的火花，並將之轉化成設計上的活力與成果，更是一個需要「做中學」的教學研究與實踐。而完成後的校園空間裝置，同樣也將考驗校長與師生們，如何發揮想像力與創造力，讓校園內的活動與遊戲，也能成為是學習與教學的活動場域。

Challenges Of ACI 318-19 Revisions To Flexural Design Of RC Beams Considering Higher-strength Reinforcements

title: Challenges Of ACI 318-19 Revisions To Flexural Design Of RC Beams Considering Higher-strength Reinforcements abstract: For flexural design, the 2019 Building Code of the American Concrete Institute (ACI 318-19) revisions allows the use of high-strength reinforcements and concretes as well as new reinforcement strain limits for reinforced concrete (RC) structures. As a result, more economic flexural design of RC members with lower amount of longitudinal steel reinforcements or smaller sections will be appreciated. However, such benefits may probably introduce another issue of deflection analysis and depth (thickness)-span limitations in the coded serviceability requirements. From the viewpoint of mathematical programming, this topic is of constrained optimization problems with multiple decision variables and object functions. To address this issue, an Excel-spreadsheet modeling to integrate the flexural reinforcement design with the coded serviceability requirements of RC beams was developed, in which the Generalized Reduced Gradient (GRG) based nonlinear optimization method defaulted in the Excel-Solver is applied to search feasible (or optimal) longitudinal reinforcements for RC beam design. The results indicates that the serviceability requirements should be assessed in flexural design of slender RC beams if higher-strength reinforcement is taken into account.

建構性地域主義－源自生活中的民藝美學

title: 建構性地域主義－源自生活中的民藝美學

Frequency Variation and Dynamic Behavior in a Moving Mass-Plate System

title: Frequency Variation and Dynamic Behavior in a Moving Mass-Plate System abstract: As the frequency variation in a moving mass-plate system is seldom discussed in the previous work, this study first formulates the semi-analytical solutions of a system consisting of a moving mass on a square plate. Based on the moving mass-plate system, several finite element models with designed plate-type bridges are established to further investigate the effect of moving mass on a plate, the influence of bridge local modes, and the influence of moving loads on a bridge. The numerical results have shown that the frequency variation of a plate-type bridge can reach 30% for the first three modes. The unique phenomenon of wave propagation is exhibited in the acceleration responses of the plate-type bridge, while it is uncommon for a beam-type bridge. For design purpose, the following are remarked: (1) The use of Rayleigh damping on the stiffened bridge can effectively suppress the influence of local modes on the bridge deck. (2) The high stiffness in the moving load can be served as the damper to reduce the dynamic responses of a vehicle. (3) In the design stage of a plate-type bridge subjected to moving loads, the moving force is the most conservative one among the three moving loads.

Resonance reduction for linked train cars moving on multiple simply supported bridges

Challenges Of ACI 318-19 Revisions To Flexural Design Of RC Beams Considering Higher-strength Reinforcements

藝遊微境-參與式構築實作教育在興仁國小的實踐

title: 藝遊微境-參與式構築實作教育在興仁國小的實踐 abstract: 構築，乃是將建築材料透過結構的詩意組裝，來形成具有美學性、公共性與社會性的環境空間創作。本研究秉持「做中學」的教育理念，透過構築實作的方式進入社區實踐，認識社區的真實需求，提升社區對於環境藝術的認識。本研究透過參與式設計過程，引發國小孩童對於校園環境、身體感知與肢體探索間的協調整合發展。以共融式設計的理念作為啟發，把環境視為是第三位教師，將校園轉化成可供學童探索自我、觀察環境，並發展出主動學習意志的場域。這個操作與學習的對象是多向的；首先，透過參與式遊戲的引導，逐步找到孩童對於環境的感知與想像；這對大學生而言，也是一個邊做邊學的旅程；而對主持教師而言，如何掌握大學生與學童互動所激盪出的火花，並將之轉化成設計上的活力與成果，更是一個需要「做中學」的教學研究與實踐。而完成後的校園空間裝置，同樣也將考驗校長與師生們，如何發揮想像力與創造力，讓校園內的活動與遊戲，也能成為是學習與教學的活動場域。

How do we live together? Lecture notes during the pandemic of 2021

title: How do we live together? Lecture notes during the pandemic of 2021

有任務的學習與設計思考：淡水宗教文化與歷史究區再生工作坊

title: 有任務的學習與設計思考：淡水宗教文化與歷史究區再生工作坊 abstract: 本個案研究是教育部大學社會責任計畫「淡水好生活—學習型城鄉建構計畫」之「淡水世界遺產潛力點田野學校」子計畫的一部分。本研究以都市設計工作坊的實踐模式，發展創新的「社區營造」課程模組，以設計思考的同理心、需求定義、創意發想、製作原型及測試等歷程軌跡，檢驗學生在進入真實生活世界的社區與社群中，如何透過與小組團隊一起從田野調查、界定問題到計畫提案的學習歷程中發展設計思維。本研究以臺灣北部的淡水歷史街區為場域，依據當下場域中的真實議題，選定「宗教文化與歷史街區再生」作為工作坊的操作主題。以非物質文化資產的「宗教文化」經驗為專題提案內容，透過包括課堂上課、小組討論、街區走訪、學生訪談、學習反思日誌等資料的蒐集，分析有關淡水歷史城市再造可能性的構思與設計歷程。研究結果發現，透過與在地的「人」與「物」的交流與經驗世界的理解，參與此課程的學生為完成提案任務的學習是一個參與式設計的意義建構與共識（sense making）的過程。研究還發現，將課程帶到生活現場進行有任務的學習，為學生開展了新穎卻又貼近傳統文化的學習經驗。透過設計進行研究獲得的建築知識以及促進設計思考的可視性功能在此研究中有進一步的討論。此外，本研究透過設計思考課程模組的建構，有助於優化參與式設計「社區營造」教學模式在大學課程改革的實踐。

時間的形狀--2022淡水中山路地方學習工作坊

title: 時間的形狀--2022淡水中山路地方學習工作坊

對話理論—博物學式的建築設計操作

title: 對話理論—博物學式的建築設計操作 abstract: 本論文在闡明吾人以「對話理論」作為設計教學之理論，以博物學作為對話理論的操作方法的設計教學。藉由Bakhtin對話理論中的多聲道與複調的觀點，讓學生在設計操作的過程中不斷思索議題、策略、概念與設計間之關係，藉由對話的過程來產生多元的視角與立場，以及理解社會環境與建築設計的對象，並藉此確立自我意識、自身的立場與態度來進策略的擬定與設計發展。設計教學的案例一方面以博物學（自然史）的調查研究方法介入，在訓練中建立學生對自然環境、社會文化的認知體系；另一方面藉由與自然環境、社會文化的對話，進行建築設計操作。此為以研究導向為基礎而發展的設計操作理論，以連接建築理論、在地知識與建築設計。透過不同與多重的他者對話，「對話理論」一方面避免Rapoport所認為之設計者服務使用者的（二元對立）立場，或是在社區營造中設計者角色的壓抑；另一方面再現「在地知識」的複雜性、多元性以及歧異性。藉以在「在地」與「全球」之外、探詢其他新的設計可能性。

Exploring Models of Elderly Care Through New Living Arrangements for Different Generations

title: Exploring Models of Elderly Care Through New Living Arrangements for Different Generations abstract: Taiwan is set to become a super-aged society by 2025, which is defined as 20% of the population being aged 65 or older. Our findings revealed that in today's model of care, many senior people no longer live in a three-generation household, and multigenerational living has risen to 57%, in which younger adults live nearby and take care of older adults. Reasons for this include advanced architectural technology creating vertical communities where people live on different floors in the same high-rise building or older adults simply less willing to relocate as they age. Whatever the reason, current living arrangements have changed from three-generation cohabitation in which younger adults (children) care for older adults (parents) under one roof to multigenerational living. This study used a questionnaire survey to explore multigenerational living arrangements, especially because people's willingness to mutually provide care for each other could affect their choice of living arrangements. The aim of this study was to understand the relationship among living structures, elderly care, and mutual caring in order to identify an appropriate model. This study also sought to identify improvements in future environments and accordingly provide suggestions. The survey results indicated that when family members from different generations live in close quarters, they still look after each other without the need to cohabit in a three-generation home. This type of living arrangement is called "multiple generations living in close quarters" or "intergenerational community." Family members of different ages were also found to have different needs and expectations about living arrangements, and as such, they preferred to live on different floors to ensure independent living and a better living quality. Therefore, a new model of care has emerged where family members prefer to live in close proximity rather than living under the same roof. Further investigation also revealed that the distance between the homes of the younger adults and that of the older adults is key to multigenerational living arrangements. The majority of respondents agreed that a distance of 5-10 minutes on foot was deemed as living close to each other. This echoes New Urbanism, which defines "living in close quarters" as every family member living within a 400 m radius of each other to regularly support and visit their loved ones including in times of need. Its findings show that family members of different ages have different needs and expectations for living arrangements, and they prefer to live nearby rather than under the same roof. The distance between the homes of young and old is key to multigenerational living arrangements. This conclusion has an empirical contribution to housing policy, social policy and architectural design.

基於虛實共存環境的空間認知模式探究：以建築系低年級設計課程的遠距教學環境建構為例

title: 基於虛實共存環境的空間認知模式探究：以建築系低年級設計課程的遠距教學環境建構為例

飛象入宜：他者形塑的地域性傳統

title: 飛象入宜：他者形塑的地域性傳統

數位時代對大一建築設計的挑戰

title: 數位時代對大一建築設計的挑戰

Challenges Of ACI 318-19 Revisions To Flexural Design Of RC Beams Considering Higher-strength Reinforcements

Laboratory Vibration Studies of Metro Tracks Equipped with Tuned Rail Dampers

title: Laboratory Vibration Studies of Metro Tracks Equipped with Tuned Rail Dampers abstract: Purpose With the rapid development of urban metro systems in the growing cities of China, a way to reduce metro train-induced track vibrations transmitted through ground to surrounding buildings has attracted the attention of engineering researchers. Using additional mass, damping and flexural stiffness to improve the dynamic performance of metro tracks, a Tuned Rail Damper (TRD) is developed to mitigate the vibrations of the metro tracks. Methods In this paper, a laboratory hammer test is designed and carried out to assess the vibration performance of a 3-interval (of 3 × 0.6 m) metro track installed with the TRD sets. Results The hammer test results indicated that depending on the position of a hammer impulse acting on the 3-interval track unit, different excitation frequencies would be measured. Conclusion According to the experimental study, the TRD has advantages such as easy installation, convenient inspection by hammer test, and good vibration reduction performance for its flexural strengthening effect on metro tracks. Moreover, the composed TRD-track system has a robust ability to reduce vibrations and an increase of higher frequencies compared to conventional tracks. This dynamic feature can decrease the risk of clip failure in a fastening system subjected to intensive excitations from moving metro trains.

民國與儒家：戰後台灣國家論述下的禮制建築

title: 民國與儒家：戰後台灣國家論述下的禮制建築 abstract: 禮制，乃是一個民族與社會之政治組織、文化信仰、行為規範、社會道德和天地宇宙觀的綜合呈現。而為此而興建的建築物，也是反應了當時的政治權力組織、社會文化及信仰的物質性呈現。中國在政治上自漢武帝開始尊崇儒家以來，禮制建築變成了規範封建中國社會與文化的重要秩序象徵物。一直到1911 年滿清王朝被推翻為止，傳統的禮制建築在中國社會中，一直扮演重要安定秩序力量的角色。作為日本的前殖民地，台灣在二戰後被納入中華民國的政治體制當中。為此，作為推翻封建中國的國民政府，如何在失去中國大陸的領土後，又重新訴諸儒家的「道統」的概念，來推動如「故宮」、「孔廟」與「忠烈祠」等禮制建築的現代化，一方面藉此來推動在台灣的中國文化認同，另一方面也是合法化其治理的基礎。

Shifted Resonance of Railway Bridges Under Trains Passing by Each Other

title: Shifted Resonance of Railway Bridges Under Trains Passing by Each Other abstract: Dynamic vehicle–bridge interaction (VBI) plays a crucial role in the train-induced vibrations of a railway bridge for its coupling effects may reduce the bridge response and down-shift the resonant speed. The commonly used nominal theoretical resonant speed (=fbD) of a typical railway bridge, however, is only related to the bridge frequency (fb) and car length (D) , but it neglects the VBI effects of the moving trains. Such a shifted resonance phenomenon would become significant for a bridge under two trains passing by each other. This study develops a method using an equivalent modal mass to be added onto the bridge to account for the frequency shift due to the presence of multiple train cars for estimation of the shifted resonant speed. The numerical study demonstrates that the proposed method can predict the shifted resonant speed and explain the shifted-resonance phenomenon of railway bridges under train passages.

Double Sub-Resonance Mechanism in Torsional–Flexural Vibrations of a Double-Track Short Bridge Under a Moving Train

title: Double Sub-Resonance Mechanism in Torsional–Flexural Vibrations of a Double-Track Short Bridge Under a Moving Train abstract: Train-induced resonance of a railway bridge occurs when the train speed coincides with the primary resonance speed (vbr ) of the bridge, from which we can determine the sub-resonance speed as (vbr∕n|n=2,3 ). The primary resonance speed of a short bridge is generally much higher than the operation speeds of current high-speed trains but the corresponding sub-resonance speeds probably lie in the operation speed range. Such a resonance scenario can be observed from the vibration of a double-track bridge subjected to an eccentrically moving train, in which the deck vibration is combined by the vertical-flexural and torsional vibration modes of the bridge. Once the two modal sub-resonance speeds coincide with each other, a double sub-resonance will be developed on the bridge. In this study, an iteration-based train–bridge interaction finite element procedure will be presented to demonstrate the double resonance phenomenon. As expected, the double resonance may bring about a dramatic amplification on deck vibration. Such an excessive vibration is harmful to ballast stability and track maintenance of railway bridges.

Investigating the malleable socioeconomic resilience pathway to urban cohesion: a case of Taipei metropolitan area

title: Investigating the malleable socioeconomic resilience pathway to urban cohesion: a case of Taipei metropolitan area abstract: It is known that globalization has led first- and second-tier cities’ urban restructuring trajectories, excreted pressures, and caused tremendous socioeconomic volatility. This resulted in marginalized communities in dire of social empowerment, employment structure variance, and industry sectoral adjustment. Moreover, recent successive climate and health crisis unfolded and affirmed the state of our urban incompetence to sustain socioeconomic resilience or otherwise; lacking swift responses in providing critical management and services, cites are facing multifaceted challenges. Urban well-being and resilience are at stake. Although the environmental and health dimensional effects are apparent, this study ascertains that the transept multi-scalar analysis within the urban socioeconomic structure is crucial in sustaining core resilience to foster health and well-being of the community. As an integral part of the investigation, the revised DPSIR assessment framework is applied to evaluate the sectoral shift; spatial structure disarray and urban codependence degree are examined within the Taipei metropolitan area (TMA), a medium size but densely populated metropolitan area in Taiwan. The place-based DPSIR analysis ascertained the states and impacts in TMA: (1) A population decline speeded the restructuring of the urban core, while the impact of demographic aging and shrinkage rate mandates proper management and planning responses to the decline process; (2) the socioeconomic state effect is determined but does not critically affect the periphery zone, while an uneven demographic shift within the urban core necessitates dynamic adjustment responses to appropriately provide intergenerational services; (3) the uneven sector redistribution stimulated the core’s spatial and structural inter-dependency with peripheral zones, requiring governance with tighter cross-administration cooperation among respective public sectors; and (4) facing the sector/temporal and demographic pressure, urban cohesiveness in the TMA is greatly affected, which in turn disrupts the resilience pathway toward a cohesion. The study ascertained that the revised DPSIR framework could provide cities facing pressing socioeconomic drivers with effective analysis to allocate pressures, states, and impacts and formulate the necessary responses. To assure the socioeconomic resilience and urban cohesiveness, planning policy should carefully monitor and evaluate socio-demographic and sector redistribution factors to promote the urban resilience.

Rethinking Greening The Building Façade Under Extreme Climate: Attributes Consideration for Typo-Morphological Green Envelope Retrofit

title: Rethinking Greening The Building Façade Under Extreme Climate: Attributes Consideration for Typo-Morphological Green Envelope Retrofit abstract: Overpopulated cities have practiced trading available land for the necessary livelihood resources, depleting accessible green assets in the densely developed urban habitat. Facing climate change as a risk multiplier, cities must reckon for alternative mitigation strategies. This study ascertains that green has proven to increase one's psychological well-being, it is also one of the most important factors to intercede the effects of air pollution and temperature. For communities necessitating viable green resources, the addition of vertical greening retrofit on building façade can satisfy the need as an intermediary media to engage meaningful interaction with the urban green-scape. Thus, proper urban planning must re-think how to incorporate these measures for public health consideration. The assessment of these criteria is important to accomplish the planning of vertical green to enhance the residents’ well-being state. A central focus is placed on the benefits to health and wellbeing and the increase in physical activity and social interaction at the neighborhood scale. This article presents the systemic analysis to vertical green-scape attainment in central Taipei, allowing the locality and place to be incorporated into the exploration framework. The case studies presented in this paper focuses on analytical exploration of vertical green-scape attainment framework with the sub-tropic Taipei in mind. The attributes assessment framework is established; the research concludes that: (1) in line with human-nature connection and raising its priority level within both design research and design practice should consider the environmental, social, economic and spatial criteria for the design thinking exploration; (2) the analysis confirmed that desired green-scape could be attained either indoor or outdoor, with tissue, support, and infill attributes as a probable solution suited for the locality; (3) integration with urban context is highly capable in encouraging the social well-being for the urban system.

Understanding the Meaningful Places for Aging-in-Place: A Human-Centric Approach toward Inter-Domain Design Criteria Consideration in Taiwan

title: Understanding the Meaningful Places for Aging-in-Place: A Human-Centric Approach toward Inter-Domain Design Criteria Consideration in Taiwan abstract: Background: Aging is key to inclusion, and it should be taken into account when designing every place of human activity. However, the implementation of such guidelines often fails the human-centric aspiration as health and design domain interpretation gaps impede the suitable reading and implementation strategies. Purpose: This study aimed to understand critical factors in the place-of-aging and to examine the gap in domain interpretation affecting age-friendly housing. Methods: Using grounded theory as a base, questionnaire interviews were implemented either face-to-face or through an online process by health and design domain experts. Overall, 40 respondents (20 health and 20 design experts) evaluated the key criteria to prioritize according to their value of importance. The factor analysis resulted in the stated deviation, suggesting a necessity to redefine the attributes of the dwelling based on a people, place and process framework. Results: The systemic analysis affirmed the inter-disciplinary gap to enhancing the dwelling provision. The health domain experts consistently ranked the criteria higher or equal than the design domain except for safety and security criteria. Both domains agreed that affordability is a main concern, as elders must be able to afford their dwelling choice. Conclusion: The valuable finding of the key criteria in the study is to uphold the value of the urban health resilience implication as the core of this study.

Understanding the Meaningful Places for Aging-in-Place: A Human-Centric Approach toward Inter-Domain Design Criteria Consideration in Taiwan

社會對都市更新公共利益的誤解與謬用－兼談修法建議

title: 社會對都市更新公共利益的誤解與謬用－兼談修法建議

都市更新條例修正後的影響

title: 都市更新條例修正後的影響