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Many seniors live in old residential communities (ORCs) with low-quality outdoor environment (OE), which hinders the residents’ outdoor daily activities (ODAs). This paper empirically investigates the association of OE on ODAs for seniors living in ORCs. A questionnaire was designed and distributed in six central districts of Nanjing city. A total of 258 questionnaires was finally collected, of which 60.08%, 29.46%, 9.69%, and 0.78% respondents were scattered into four age groups (61–69, 70–79, 80–89, and ≥90), respectively. Based on reliability analysis, correlation analysis, and regression analysis, the results show that: (1) social activities are mainly associated with noise; (2) leisure activities are significantly associated with road accessibility, slip-resistance measures, greenery, and staff; (3) utilitarian-type activities are significantly associated with stairway accessibility, slip-resistance measures, greenery, and seating; (4) there is a significant association between nature-exposure activities and layout, greenery, and poor air quality. The findings could guide Chinese officials when renewing ORCs by addressing the most important outdoor environmental factors associated with ODAs.
Shiwang Yu; Na Guo; Caimiao Zheng; Yu Song; Jianli Hao. Investigating the Association between Outdoor Environment and Outdoor Activities for Seniors Living in Old Residential Communities. International Journal of Environmental Research and Public Health 2021, 18, 7500 .
AMA StyleShiwang Yu, Na Guo, Caimiao Zheng, Yu Song, Jianli Hao. Investigating the Association between Outdoor Environment and Outdoor Activities for Seniors Living in Old Residential Communities. International Journal of Environmental Research and Public Health. 2021; 18 (14):7500.
Chicago/Turabian StyleShiwang Yu; Na Guo; Caimiao Zheng; Yu Song; Jianli Hao. 2021. "Investigating the Association between Outdoor Environment and Outdoor Activities for Seniors Living in Old Residential Communities." International Journal of Environmental Research and Public Health 18, no. 14: 7500.
This study explores the quality of data produced by Global Precipitation Measurement (GPM) and the potential of GPM for real-time short-term nowcasting using MATLAB and the Short-Term Ensemble Prediction System (STEPS). Precipitation data obtained by rain gauges during the period 2015 to 2017 were used in this comparative analysis. The results show that the quality of GPM precipitation has different degrees efficacies at the national scale, which were revealed at the performance analysis stage of the study. After data quality checking, five representative precipitation events were selected for nowcasting evaluation. The GPM estimated precipitation compared to a 30 min forecast using STEPS precipitation nowcast results, showing that the GPM precipitation data performed well in nowcasting between 0 to 120 min. However, the accuracy and quality of nowcasting precipitation significantly reduced with increased lead time. A major finding from the study is that the quality of precipitation data can be improved through blending processes such as kriging with external drift and the double-kernel smoothing method, which enhances the quality of nowcast over longer lead times.
Kaiyang Wang; Lingrong Kong; Zixin Yang; Prateek Singh; Fangyu Guo; Yunqing Xu; Xiaonan Tang; Jianli Hao. GPM Annual and Daily Precipitation Data for Real-Time Short-Term Nowcasting: A Pilot Study for a Way Forward in Data Assimilation. Water 2021, 13, 1422 .
AMA StyleKaiyang Wang, Lingrong Kong, Zixin Yang, Prateek Singh, Fangyu Guo, Yunqing Xu, Xiaonan Tang, Jianli Hao. GPM Annual and Daily Precipitation Data for Real-Time Short-Term Nowcasting: A Pilot Study for a Way Forward in Data Assimilation. Water. 2021; 13 (10):1422.
Chicago/Turabian StyleKaiyang Wang; Lingrong Kong; Zixin Yang; Prateek Singh; Fangyu Guo; Yunqing Xu; Xiaonan Tang; Jianli Hao. 2021. "GPM Annual and Daily Precipitation Data for Real-Time Short-Term Nowcasting: A Pilot Study for a Way Forward in Data Assimilation." Water 13, no. 10: 1422.
Construction and demolition (C&D) waste minimization is an important strategy for addressing waste management challenges. Generally, C&D waste minimization is a complex and open system involving various interrelated processes, elements and stakeholders. Previous studies have investigated internal factors of the system, but neglected effects of external factors and interactions between internal and external factors. Therefore, this paper aims to investigate China’s C&D waste minimization system from the perspectives of integrity and dynamics. Based on the dissipative structure theory, the paper examines whether China’s C&D waste minimization system is a dissipative structure, given that a dissipative structure system can transform itself from disordered state to ordered state spontaneously through interactions among the inherent subsystems and elements involved. Firstly, 28 factors influencing waste minimization are identified. Secondly, the Brusselator model and entropy methods are adopted for empirical analysis with the data collected by questionnaire survey. The findings reveal that China’s current C&D waste minimization system is not a dissipative structure; consequently, the development of the system cannot form a macroscopic stable and orderly structure through self-organization. Accordingly, suggestions are proposed to effectively promote the C&D waste minimization system toward a dissipative structure. The findings are expected to enhance the C&D waste minimization system through forming a dissipative structure and consequently achieving orderly and coordinated system development.
Hongping Yuan; Zheng Wang; Yongwei Shi; Jianli Hao. A dissipative structure theory-based investigation of a construction and demolition waste minimization system in China. Journal of Environmental Planning and Management 2021, 1 -27.
AMA StyleHongping Yuan, Zheng Wang, Yongwei Shi, Jianli Hao. A dissipative structure theory-based investigation of a construction and demolition waste minimization system in China. Journal of Environmental Planning and Management. 2021; ():1-27.
Chicago/Turabian StyleHongping Yuan; Zheng Wang; Yongwei Shi; Jianli Hao. 2021. "A dissipative structure theory-based investigation of a construction and demolition waste minimization system in China." Journal of Environmental Planning and Management , no. : 1-27.
During China’s rapid economic development and urbanization, numerous cases of urban malodorous black river (MBR) have occurred. MBR refers to a polluted urban river that smells bad, is almost black in color, has no aquatic plants or animals, and that consequently causes many social and environmental problems. The Chinese government has sought public participation during the whole process of MBR treatment as part of a comprehensive action plan to improve residents’ satisfaction with their environment. To investigate the influencing factors of public participation and satisfaction, a questionnaire survey was conducted among residential communities close to an MBR. SPSS 22.0 was employed to conduct an analysis of the collected data, using factor analysis, correlation analysis, and linear regression analysis. The results indicate that there is a direct relationship between public satisfaction and the factors of government treatment, public perception and public participation behaviors, such as engagement behavior, supervision behavior, health influence, and compensation measures.
Shiwang Yu; Jianxia Bao; Wen Ding; Xue Chen; Xiaonan Tang; Jianli Hao; Wei Zhang; Prateek Singh. Investigating the Relationship between Public Satisfaction and Public Environmental Participation during Government Treatment of Urban Malodorous Black River in China. Sustainability 2021, 13, 3584 .
AMA StyleShiwang Yu, Jianxia Bao, Wen Ding, Xue Chen, Xiaonan Tang, Jianli Hao, Wei Zhang, Prateek Singh. Investigating the Relationship between Public Satisfaction and Public Environmental Participation during Government Treatment of Urban Malodorous Black River in China. Sustainability. 2021; 13 (6):3584.
Chicago/Turabian StyleShiwang Yu; Jianxia Bao; Wen Ding; Xue Chen; Xiaonan Tang; Jianli Hao; Wei Zhang; Prateek Singh. 2021. "Investigating the Relationship between Public Satisfaction and Public Environmental Participation during Government Treatment of Urban Malodorous Black River in China." Sustainability 13, no. 6: 3584.
Stormwater management is a key issue in line with global problems of urbanization and climate change. Assessing the effectiveness in managing stormwater is crucial to maintain urban resilience to flooding risk. A method based on a stormwater management model (SWMM) was developed for assessing the control of stormwater runoff volume and the percentage removal of suspended solids by implementing a Sponge City strategy. An interdisciplinary approach was adopted incorporating Low Impact Development (LID) with urban green infrastructure and grey infrastructure paradigms in a typical old residential community in Suzhou, China. Sponge facilities for reducing stormwater runoff included bio-retention cells, permeable pavements, grassed pitches, and stormwater gardens. The simulation results of SWMM show that the stormwater pipe system can meet the management standard for storms with a five-year recurrence interval. The volume capture ratio of annual runoff was 91%, which is higher than control target of 80%. The suspended solids reduction rate was 56%, which meets the requirement of planning indicators. Thus, the proposed method of spongy facilities can be used for renovation planning in old residential areas in China. Implementing spongy facilities with a LID strategy for stormwater management can significantly enhance urban water resilience and improve ecosystem services.
Yixin Zhang; Weihan Zhao; Xue Chen; Changhyun Jun; Jianli Hao; Xiaonan Tang; Jun Zhai. Assessment on the Effectiveness of Urban Stormwater Management. Water 2020, 13, 4 .
AMA StyleYixin Zhang, Weihan Zhao, Xue Chen, Changhyun Jun, Jianli Hao, Xiaonan Tang, Jun Zhai. Assessment on the Effectiveness of Urban Stormwater Management. Water. 2020; 13 (1):4.
Chicago/Turabian StyleYixin Zhang; Weihan Zhao; Xue Chen; Changhyun Jun; Jianli Hao; Xiaonan Tang; Jun Zhai. 2020. "Assessment on the Effectiveness of Urban Stormwater Management." Water 13, no. 1: 4.
Construction and demolition waste (CDW) accounts for 40% of urban municipal waste in China and around 25% in the European Union (EU). Since the EU is more developed and urbanized than China, its experience with managing CDW may be helpful to China. This study therefore compared China and the EU with respect to the flow of CDW materials and the policies, laws and regulations for CDW management. The results reveal that the CDW management practices and facilities in China are relatively underdeveloped with a large amount of low-value inert material going to landfill compared with the EU. The study also reveals the important role of government involvement in CDW management, including the use of punitive measures and preferential policies; most EU members states achieved their waste recovery rates by 2016 due to mature CDW legalization. To improve the management of CDW in China, a series of suggestions are proposed including waste prevention strategies, establishment of supervision mechanisms, and financial support.
Jianli Hao; Francesco Di Maria; Zhikun Chen; Shiwang Yu; Wenting Ma; Luigi Di Sarno. COMPARATIVE STUDY OF ON-SITE SORTING FOR C&D IN CHINA AND EUROPE. Detritus 2020, 114 -121.
AMA StyleJianli Hao, Francesco Di Maria, Zhikun Chen, Shiwang Yu, Wenting Ma, Luigi Di Sarno. COMPARATIVE STUDY OF ON-SITE SORTING FOR C&D IN CHINA AND EUROPE. Detritus. 2020; (13):114-121.
Chicago/Turabian StyleJianli Hao; Francesco Di Maria; Zhikun Chen; Shiwang Yu; Wenting Ma; Luigi Di Sarno. 2020. "COMPARATIVE STUDY OF ON-SITE SORTING FOR C&D IN CHINA AND EUROPE." Detritus , no. 13: 114-121.
Aimed at maximizing project value while reducing waste and cost, the lean construction (LC) approach was formally and successfully introduced to the architecture, engineering and construction (AEC) industry in 1993. Although LC has rapidly developed since that time, it was not applied to a Chinese construction project until 2005. However, due to insufficient knowledge and poor execution, this first attempt at lean construction in China was inadequate. The aim of this study was therefore to discover if the Chinese construction industry has since discovered how to use lean practices to maximize project value, shorten the project schedule, improve project quality, and reduce waste. This was achieved by conducting a case study of a LC project in Suzhou, China. The case study revealed that implementation of lean practices during the project, including Last Planner System (LPS), Kanban system, Just-In-Time (JIT), prefabrication, Internet of Things (IoT), quality and safety management, and continuous improvement, all contributed to the improvement of project performance. To supplement the case study and to provide insights on the differences between Chinese and international LC, interviews with project stakeholders and a questionnaire survey of global lean experts were conducted. Results indicated that interviewees and survey respondents both held the view that project waiting times and defects can be greatly reduced through the implementation of LC, and that improvement of construction workflow along with project productivity and quality were the two most valuable benefits of using lean practices; there was also a consensus that lack of trust and the abilities of stakeholders are the biggest challenges.
Weiqi Xing; Jian Li Hao; Liang Qian; Vivian W.Y. Tam; Karol S. Sikora. Implementing lean construction techniques and management methods in Chinese projects: A case study in Suzhou, China. Journal of Cleaner Production 2020, 286, 124944 .
AMA StyleWeiqi Xing, Jian Li Hao, Liang Qian, Vivian W.Y. Tam, Karol S. Sikora. Implementing lean construction techniques and management methods in Chinese projects: A case study in Suzhou, China. Journal of Cleaner Production. 2020; 286 ():124944.
Chicago/Turabian StyleWeiqi Xing; Jian Li Hao; Liang Qian; Vivian W.Y. Tam; Karol S. Sikora. 2020. "Implementing lean construction techniques and management methods in Chinese projects: A case study in Suzhou, China." Journal of Cleaner Production 286, no. : 124944.
Given that concrete is the second most-consumed resource in the world after water, and that most buildings are constructed in whole or in part of this cement composite, it is important to understand the impact that this material has on energy performance. In order to evaluate the hygrothermal and mechanical performance of concrete when used in buildings, this study compared different sustainable concrete mix designs. Properties such as density, porosity, specific heat capacity, and thermal conductivity of four different mixes were analyzed through hygrothermal simulations using WUFI® Plus software. Test results reveal that the hygrothermal performance of concrete can be enhanced without diminishing the value of its mechanical properties, while reducing CO2 emissions at the same time. It was also found that the use of recycled aggregates coupled with supplementary cementitious materials can give a high strength concrete with lower environmental impacts in terms of energy consumption and carbon footprint.
Shuen Simon Sui Jiang; Jian Li Hao; Janaynna Nayami De Carli. Hygrothermal and mechanical performance of sustainable concrete: A simulated comparison of mix designs. Journal of Building Engineering 2020, 34, 101859 .
AMA StyleShuen Simon Sui Jiang, Jian Li Hao, Janaynna Nayami De Carli. Hygrothermal and mechanical performance of sustainable concrete: A simulated comparison of mix designs. Journal of Building Engineering. 2020; 34 ():101859.
Chicago/Turabian StyleShuen Simon Sui Jiang; Jian Li Hao; Janaynna Nayami De Carli. 2020. "Hygrothermal and mechanical performance of sustainable concrete: A simulated comparison of mix designs." Journal of Building Engineering 34, no. : 101859.
Stormwater management is a key urban issue in the world, in line with the global issues of urban sprawl and climate change. It is urgent to investigate the effectiveness in managing stormwater with different strategies for maintain urban resilience. A method based on a storm water management model (SWMM) was developed for assessing the control of stormwater runoff volume and the percentage removal of suspended solids by implementing a Sponge City strategy. An interdisciplinary approach was adopted incorporating Low Impact Development (LID) with urban Green Infrastructure and Gray Infrastructure paradigms in a typical old residential community in Suzhou, China. Four types of sponge facilities for reducing stormwater runoff were bio-retention cells, permeable pavements, grassed pitches, and stormwater gardens. The simulation results indicate that the stormwater pipe system can meet the management standard for storms with a five-year recurrence interval. The volume capture ratio of annual runoff is 91% and the reduction rate of suspended solids is 56%. This study demonstrates that Sponge City strategy is an effective approach for managing stormwater, particularly in old and densely populated urban areas. Implementing spongy facilities with a LID strategy for stormwater management can significantly enhance urban water resilience and increase ecosystem services.
Yixin Zhang; Weihan Zhao; Xue Chen; Changhyun Jun; Jianli Hao; Xiaonan Tang; Jun Zhai. Assessment on the Effectiveness of Urban Stormwater Management. 2020, 1 .
AMA StyleYixin Zhang, Weihan Zhao, Xue Chen, Changhyun Jun, Jianli Hao, Xiaonan Tang, Jun Zhai. Assessment on the Effectiveness of Urban Stormwater Management. . 2020; ():1.
Chicago/Turabian StyleYixin Zhang; Weihan Zhao; Xue Chen; Changhyun Jun; Jianli Hao; Xiaonan Tang; Jun Zhai. 2020. "Assessment on the Effectiveness of Urban Stormwater Management." , no. : 1.
Construction waste issues have raised considerable concern in recent decades. Green building (GB) has been adopted around the globe as a strategy to curtail building-related environmental issues, including construction waste. Particularly in China, with the soaring construction activities tied to urbanization and urban regeneration, massive construction waste has been generated, imposing tremendous pressure on the industry and beyond. China is also vigorously pursuing a national GB strategy, but its effects on construction waste management (CWM) are yet to be confirmed. This paper evaluates CWM performance in GB by putting the dyads into China's particular Political, Economic, Social, and Technical (PEST) context. By analysing a total of 310 LEED (Leadership in Energy and Environmental Design) accredited GB projects in China, it is surprisingly discovered that GB does not prominently improve CWM. The paper goes further to understand the causes of the mediocre CWM performance, by conducting ten semi-structured interviews with GB and CWM practitioners in China. Finally, a comprehensive PEST analysis is conducted to discuss the situation in the context of China. Factors such as (a) incomplete CWM regulations in China, (b) lack of economic incentives, (c) lacklustre awareness about CWM, and (d) lack of advanced technologies, caused the CWM performance in GB. Based on the PEST analyses, some targeted strategies are also recommended. This study is of benefits to both researchers and practitioners in the GB industry.
Zhikang Bao; Weisheng Lu; Bin Chi; Jane Hao. Construction waste management performance in green building: contextualising LEED in China. Detritus 2020, 125 -134.
AMA StyleZhikang Bao, Weisheng Lu, Bin Chi, Jane Hao. Construction waste management performance in green building: contextualising LEED in China. Detritus. 2020; (12):125-134.
Chicago/Turabian StyleZhikang Bao; Weisheng Lu; Bin Chi; Jane Hao. 2020. "Construction waste management performance in green building: contextualising LEED in China." Detritus , no. 12: 125-134.
This study proposes a new mix design method for C30 recycled concrete using recycled aggregate crushed from different strength source concrete (SC). The dosages of cement, water, sand, and coarse recycled concrete aggregate (CRCA) are the same as the corresponding components in natural concrete, but the CRCA should be pre-wetted before casting. Its weighted mean strength has a value of 43.1 MPa for two strengths of SC. Compressive and splitting tensile strength tests on recycled concrete with CRCA (100% substituting limestone aggregate) made from two mixed SC with varying strengths, have been implemented to acquire the mix design method. For investigating the influence of CRCA from two strengths of SC on recycled concrete performance, test parameters of mechanical behavior including compressive strength of SC, strength difference between two mixes of SC, and proportion of two mixed CRCA were taken into account. Test results indicate that when one of the two mixed SC strengths is similar to the target strength, two requirements have to be satisfied to achieve the target compressive strength: one of the SC has to be more than 10 MPa higher than the target strength, and the proportion of the higher strength SC is larger than 75% in weight of the total CRCA. The results provide useful information for recycling multiple strength SC.
Xiaomeng Ding; Jianli Hao; Zhongfan Chen; Jianan Qi; Meloni Marco. New Mix Design Method for Recycled Concrete Using Mixed Source Concrete Coarse Aggregate. Waste and Biomass Valorization 2020, 11, 5431 -5443.
AMA StyleXiaomeng Ding, Jianli Hao, Zhongfan Chen, Jianan Qi, Meloni Marco. New Mix Design Method for Recycled Concrete Using Mixed Source Concrete Coarse Aggregate. Waste and Biomass Valorization. 2020; 11 (10):5431-5443.
Chicago/Turabian StyleXiaomeng Ding; Jianli Hao; Zhongfan Chen; Jianan Qi; Meloni Marco. 2020. "New Mix Design Method for Recycled Concrete Using Mixed Source Concrete Coarse Aggregate." Waste and Biomass Valorization 11, no. 10: 5431-5443.
Due to the rapid pace of urbanization in China, there has been a significant increase in construction work, which has resulted in the generation of more waste. Reducing the waste at source is the most efficient way to reduce its negative impacts, and prefabrication is a construction method that does exactly that. Since prefabricated construction generates less waste compared to conventional cast-in-situ construction, it is being promoted by the Chinese government. This study investigates the benefits of prefabrication and quantifies the percentage of construction waste reduction through its application in China. It does so by using a 26-storey concrete-brick residential building as a case study, and by conducting uncertainty analysis with Oracle Crystal Ball simulation software to assess the reduction of waste when using prefabricated components in place of cast-in-situ elements. Simulation results demonstrated that the waste generation rate for in-situ timber formwork and masonry work was 10.52 and 4.77 kg/m2 respectively, and that the use of prefabricated components reduced those figures by 36.04% and 25.53% respectively. This study quantifies the benefits of prefabrication as a method for reducing the generation of construction waste in China. Not only would extensive use of prefabrication decrease the cost related to construction waste management in China, but it could also mitigate the environmental and social impacts of construction waste globally.
Jianli Hao; Zhikun Chen; Zihan Zhang; Gisela Loehlein. Quantifying construction waste reduction through the application of prefabrication: a case study in Anhui, China. Environmental Science and Pollution Research 2020, 28, 24499 -24510.
AMA StyleJianli Hao, Zhikun Chen, Zihan Zhang, Gisela Loehlein. Quantifying construction waste reduction through the application of prefabrication: a case study in Anhui, China. Environmental Science and Pollution Research. 2020; 28 (19):24499-24510.
Chicago/Turabian StyleJianli Hao; Zhikun Chen; Zihan Zhang; Gisela Loehlein. 2020. "Quantifying construction waste reduction through the application of prefabrication: a case study in Anhui, China." Environmental Science and Pollution Research 28, no. 19: 24499-24510.
Prefabrication has gained its popularity in countries including China due to its various advantages such as quality control, waste reduction, onsite and offsite parallel coordination, and so on. It has also been recognized as a key strategy to reduce construction-induced carbon emissions. However, there is limited research to examine carbon emission reduction in prefabrication by using the advanced technological artefacts, e.g., building information modeling (BIM), emerging from the technology sphere. As a digital representation of a facility, BIM provides a cyber platform based on which many assessment and simulation works can be performed without having to construct the physical facility. This paper aims to develop a BIM-based approach to measuring carbon emission reduction during the materialization stage of a prefabricated building project. Findings from the study indicate that BIM is an efficient and effective method for measuring carbon emissions from the construction of new buildings and that prefabrication reduces carbon emissions when compared with conventional construction methods. The research contributes to the body of knowledge relating to the reduction of carbon emissions through prefabrication. This is pertinent to contractors, homebuyers and governments who are constantly seeking ways to achieve a circular economy.
Jian Li Hao; Baoquan Cheng; Weisheng Lu; Jun Xu; Junjie Wang; Weicheng Bu; Zhiping Guo. Carbon emission reduction in prefabrication construction during materialization stage: A BIM-based life-cycle assessment approach. Science of The Total Environment 2020, 723, 137870 .
AMA StyleJian Li Hao, Baoquan Cheng, Weisheng Lu, Jun Xu, Junjie Wang, Weicheng Bu, Zhiping Guo. Carbon emission reduction in prefabrication construction during materialization stage: A BIM-based life-cycle assessment approach. Science of The Total Environment. 2020; 723 ():137870.
Chicago/Turabian StyleJian Li Hao; Baoquan Cheng; Weisheng Lu; Jun Xu; Junjie Wang; Weicheng Bu; Zhiping Guo. 2020. "Carbon emission reduction in prefabrication construction during materialization stage: A BIM-based life-cycle assessment approach." Science of The Total Environment 723, no. : 137870.
Tests were conducted of the bonding shear strength of different bamboo configurations in terms of grain direction, adhesive, and clamping pressure. The bonding shear tests were carried out with two basic configurations: glued together with the grain in the same direction, and cross-laminated. Five different adhesives were used: emulsion polymer isocyanate (EPI), polyurethane (PUR), melamine-urea-formaldehyde (MUF), hybrid polymer adhesive (HPA), and polyvinyl acetate (PVA). To assess the optimum value, specimens were prepared with three clamping pressures. According to the test results, the most suitable adhesive for glued laminated bamboo surface is MUF; EPI is not effective for bonding laminated bamboo elements, and PVA performs the best for scrimber produced with cross-laminated bamboo. The results also showed that end grain specimens had the highest bonding shear strengths among the four configurations, and that, in accordance with the properties of raw bamboo, cross-laminated types exhibited similar mechanical characteristics in both directions. It can be concluded that the testing method used for cross laminated timber is also suitable for assessing the shear strength of adhesive bonds for cross-laminated bamboo.
Weiqi Xing; Jianli Hao; Karol S. Sikora. Shear Performance of Adhesive Bonding of Cross-Laminated Bamboo. Journal of Materials in Civil Engineering 2019, 31, 04019201 .
AMA StyleWeiqi Xing, Jianli Hao, Karol S. Sikora. Shear Performance of Adhesive Bonding of Cross-Laminated Bamboo. Journal of Materials in Civil Engineering. 2019; 31 (9):04019201.
Chicago/Turabian StyleWeiqi Xing; Jianli Hao; Karol S. Sikora. 2019. "Shear Performance of Adhesive Bonding of Cross-Laminated Bamboo." Journal of Materials in Civil Engineering 31, no. 9: 04019201.
Beam–column assembled joint connections are crucial for realizing the industrialization of buildings through prefabrication. This paper focuses on the mechanical properties of a new dry-type high-strength bolt connection joint used in prefabricated buildings. The structural performance properties examined include bearing capacity, stiffness, failure mode, energy dissipation capacity, and deformation performance, all of which are tested through a pseudo static test involving low-cycle repeated loading. The test results show that the failure of the new dry-type beam–column connection joint is through plastic failure, with full hysteretic curve and good energy dissipation performance. The results provide a foundation for the analysis of assembled structural framework systems based on different forms of dry-type connection joints.
Wei Ma; Yue Li; Kewei Ding; Baoquan Cheng; Jianhua Liu; Jianli Hao; Vivian Wing Yan Tam. Mechanical Properties of New Dry-Type Beam-Column Bolt Connection Joint. Sustainability 2019, 11, 3348 .
AMA StyleWei Ma, Yue Li, Kewei Ding, Baoquan Cheng, Jianhua Liu, Jianli Hao, Vivian Wing Yan Tam. Mechanical Properties of New Dry-Type Beam-Column Bolt Connection Joint. Sustainability. 2019; 11 (12):3348.
Chicago/Turabian StyleWei Ma; Yue Li; Kewei Ding; Baoquan Cheng; Jianhua Liu; Jianli Hao; Vivian Wing Yan Tam. 2019. "Mechanical Properties of New Dry-Type Beam-Column Bolt Connection Joint." Sustainability 11, no. 12: 3348.
This paper studies the long-term performance of a Ground Source Heat Pump (GSHP) system and a Water Source Heat Pump (WSHP) system for an office building in Suzhou, which is a hot summer and cold winter climate region of China. The hot summer and cold winter region is the most urbanized region of China and has subtropical monsoon climate, therefore, Heating, Ventilation, and Air Conditioning (HVAC) systems are in great demand. Due to the fact that 42.5% of Suzhou’s total area is covered by lakes and rivers, the city has an abundance of surface water resources. Based on Suzhou’s meteorological data and the thermal characteristics of the building envelope, an office building model was created and the dynamic cooling and heating load was calculated using Transient System Simulation (TRNSYS) simulation software. Two numerical HVAC modeling systems were created: a GSHP system for which the data of an in-situ Thermal Response Test (TRT) was used and a WSHP system for which the Tai Lake water temperature was used. Simulating the performance of both systems over a 20-year period, the two systems were analyzed for their Coefficient of Performance (COP), heat source temperature variation, and energy consumption. The results show that the GSHP system causes ground heat accumulation, which reduces the system’s COP and increases energy consumption. The study also revealed that compared with the GSHP system, the WSHP system has a more stable long-term performance for buildings in Suzhou.
Wenting Ma; Moon Keun Kim; Jianli Hao. Numerical Simulation Modeling of a GSHP and WSHP System for an Office Building in the Hot Summer and Cold Winter Region of China: A Case Study in Suzhou. Sustainability 2019, 11, 3282 .
AMA StyleWenting Ma, Moon Keun Kim, Jianli Hao. Numerical Simulation Modeling of a GSHP and WSHP System for an Office Building in the Hot Summer and Cold Winter Region of China: A Case Study in Suzhou. Sustainability. 2019; 11 (12):3282.
Chicago/Turabian StyleWenting Ma; Moon Keun Kim; Jianli Hao. 2019. "Numerical Simulation Modeling of a GSHP and WSHP System for an Office Building in the Hot Summer and Cold Winter Region of China: A Case Study in Suzhou." Sustainability 11, no. 12: 3282.
With the rapid development of emerging cities in China, policy makers are faced with the challenges involved in devising strategies for providing transportation systems to keep pace with development. These challenges are associated with the interactive effects among a number of sophisticated factors involved in transportation systems. This paper presents a system dynamics simulation approach to analyze and select transportation development strategies in order to achieve good sustainability performance once they are implemented. The simulation approach consists of three modules: a socio-economic module, a demand module, and a supply module. The approach is validated through applying empirical data collected from the Shenzhen statistical bulletins. Three types of transport development strategies are selected for the city and examined for their applicability and effects through simulation. The strategies are helpful for reducing decision-making mistakes and achieving the goal of sustainable urban development in most emerging cities.
Liyin Shen; Lei Du; Xining Yang; Xiaoyun Du; Jinhuan Wang; Jianli Hao. Sustainable Strategies for Transportation Development in Emerging Cities in China: A Simulation Approach. Sustainability 2018, 10, 844 .
AMA StyleLiyin Shen, Lei Du, Xining Yang, Xiaoyun Du, Jinhuan Wang, Jianli Hao. Sustainable Strategies for Transportation Development in Emerging Cities in China: A Simulation Approach. Sustainability. 2018; 10 (3):844.
Chicago/Turabian StyleLiyin Shen; Lei Du; Xining Yang; Xiaoyun Du; Jinhuan Wang; Jianli Hao. 2018. "Sustainable Strategies for Transportation Development in Emerging Cities in China: A Simulation Approach." Sustainability 10, no. 3: 844.