In performance-based architectural design optimization, the design of building massings and façades is commonly separated, which weakens the effectiveness in performance improvement. In response, this study propo...In performance-based architectural design optimization, the design of building massings and façades is commonly separated, which weakens the effectiveness in performance improvement. In response, this study proposes a hybrid massing-façade integrated design generation and optimization workflow to integrate the two elements in an evolutionary design process. Compared with the existing approaches, the proposed workflow emphasizes the diversity of building design generation, with which various combinations of building massing forms and façade patterns can be systematically explored. Two case studies and a corresponding comparison study are presented to demonstrate the efficacy of the proposed workflow. Results show that the optimization can produce designs coupling the potential of building massings and façades in performance improvement. In addition, the optimization can provide information that supports early-stage architectural design exploration. Such information also enables the architect to understand the performance implications associated with the synergy of building massing and façade design.展开更多
In the past decade,there has been an increasing recognition of the role of computational design optimization in early-stage performance-based architectural design exploration.However,it remains challenging for designe...In the past decade,there has been an increasing recognition of the role of computational design optimization in early-stage performance-based architectural design exploration.However,it remains challenging for designers to apply such optimization-based design explorations in practice.To address this issue,this paper introduces a design tool,called EvoMass,and an associated design method that facilitates design exploration for building massing typologies in performance-based design tasks.EvoMass is capable of offering architects design options reflecting performance-related building massing typologies for the design task,without necessitating advanced computational design skills.More importantly,it can provide architects with insights into the underlying performance implications,thereby enhancing early-stage performance-based design exploration.EvoMass and its associated design method overcome the limitation in the conventional typology-first-optimization-second design procedure adopted by most existing tools,and it promotes a typology-oriented design exploration method of using computational optimization in performance-based architectural design.To demonstrate the efficacy of EvoMass,case studies derived from architectural design studio tasks,incorporating daylighting,solar exposure,and subjective design intents,and the result of a user survey are presented,which highlights how EvoMass and the performance-based design optimization and exploration can enable architects to achieve a more performance-aware design.展开更多
Multi-dimensional heat transfers modeling is crucial for building simulations of insulated buildings,which are widely used and have multi-dimensional heat transfers characteristics.For this work,state-model-reduction ...Multi-dimensional heat transfers modeling is crucial for building simulations of insulated buildings,which are widely used and have multi-dimensional heat transfers characteristics.For this work,state-model-reduction techniques were used to develop a reduced low-order model of multi-dimensional heat transfers.With hot box experiment of hollow block wall,heat flow relative errors between experiment and low-order model predication were less than 8% and the largest errors were less than 3%.Also,frequency responses of five typical walls,each with different thermal masses or insulation modes,the low-order model and the complete model showed that the low-order model results agree very well in the lower excitation frequency band with deviations appearing only at high frequency.Furthermore,low-order model was used on intersection thermal bridge of a floor slab and exterior wall.Results show that errors between the two models are very small.This low-order model could be coupled with most existing simulation software for different thermal mass envelope analyses to make up for differences between the multi-dimensional and one-dimensional models,simultaneously simplifying simulation calculations.展开更多
文摘In performance-based architectural design optimization, the design of building massings and façades is commonly separated, which weakens the effectiveness in performance improvement. In response, this study proposes a hybrid massing-façade integrated design generation and optimization workflow to integrate the two elements in an evolutionary design process. Compared with the existing approaches, the proposed workflow emphasizes the diversity of building design generation, with which various combinations of building massing forms and façade patterns can be systematically explored. Two case studies and a corresponding comparison study are presented to demonstrate the efficacy of the proposed workflow. Results show that the optimization can produce designs coupling the potential of building massings and façades in performance improvement. In addition, the optimization can provide information that supports early-stage architectural design exploration. Such information also enables the architect to understand the performance implications associated with the synergy of building massing and façade design.
基金supported by the Xi’an Jiaotong-Liverpool University Research Development Fund(RDF-23-01-107)the National Natural Science Foundation of China(52178017)。
文摘In the past decade,there has been an increasing recognition of the role of computational design optimization in early-stage performance-based architectural design exploration.However,it remains challenging for designers to apply such optimization-based design explorations in practice.To address this issue,this paper introduces a design tool,called EvoMass,and an associated design method that facilitates design exploration for building massing typologies in performance-based design tasks.EvoMass is capable of offering architects design options reflecting performance-related building massing typologies for the design task,without necessitating advanced computational design skills.More importantly,it can provide architects with insights into the underlying performance implications,thereby enhancing early-stage performance-based design exploration.EvoMass and its associated design method overcome the limitation in the conventional typology-first-optimization-second design procedure adopted by most existing tools,and it promotes a typology-oriented design exploration method of using computational optimization in performance-based architectural design.To demonstrate the efficacy of EvoMass,case studies derived from architectural design studio tasks,incorporating daylighting,solar exposure,and subjective design intents,and the result of a user survey are presented,which highlights how EvoMass and the performance-based design optimization and exploration can enable architects to achieve a more performance-aware design.
基金Project(51178023)supported by the National Natural Science Foundation of China
文摘Multi-dimensional heat transfers modeling is crucial for building simulations of insulated buildings,which are widely used and have multi-dimensional heat transfers characteristics.For this work,state-model-reduction techniques were used to develop a reduced low-order model of multi-dimensional heat transfers.With hot box experiment of hollow block wall,heat flow relative errors between experiment and low-order model predication were less than 8% and the largest errors were less than 3%.Also,frequency responses of five typical walls,each with different thermal masses or insulation modes,the low-order model and the complete model showed that the low-order model results agree very well in the lower excitation frequency band with deviations appearing only at high frequency.Furthermore,low-order model was used on intersection thermal bridge of a floor slab and exterior wall.Results show that errors between the two models are very small.This low-order model could be coupled with most existing simulation software for different thermal mass envelope analyses to make up for differences between the multi-dimensional and one-dimensional models,simultaneously simplifying simulation calculations.
