Traditional villages are a valuable cultural asset that occupy an important position in Chinese traditional culture. This study focuses on 206 Hebei Province and aims to explore their spatial distribution characteristics influencing factors using ArcGIS analysis. The analysis shows were distributed clusters during different historical periods, eventually formed three core Shijiazhuang, Zhangjiakou Xingtai-Handan after periods. Moreover, the overall of is very uneven, with clear regional...

Critical mineral resources (CMRs) are essential for emerging high-tech industries and geopolitically significant, prompting countries to pursue resource exploration development. Tibetan geothermal systems, recognized their CMR potential, have not yet been systematically evaluated. This study presents a comprehensive investigation of the spatial distributions, flux, reserves, effects CMRs, integrating analyzing hydrochemical discharge flow rate data. Geochemical findings reveal significant...

In order to investigate the internal curing effect of recycled brick aggregate (RBA) in concrete (RAC) and calculate its contribution final compressive strength, two RAC groups with different aggregates 6 replacement ratios (r) under 4 ages were tested. Results show that strengths RACI RACII decrease steadily increase r when below 40%, there is a significant drop once higher than 60%. The for low RBA ratio mainly reflected during age 14-21 days, while high ratio, this appears earlier, 7-14...

For further improving the seismic design of steel-reinforced concrete (SRC)—RC frame structures, a two-step calculating method is proposed as supplement to current Chinese standard for structural resistance design. In Step 1, internal forces are calculated by modal response spectrum and limited members' force in elastic level when structure suffers frequent earthquakes. 2, deformations analyzed pushover according moderate earthquake's demand controlled repairable level. A 20-story 5×5 span...

In response to the current issue of poor modeling performance Building Information Modeling for building models, a new based on an improved region growth algorithm is proposed. This method improves by introducing machine learning technology, and utilizes perfect model, thereby improving efficiency Modeling. The comparison experiment shows that its accuracy 92.3%, respectively, which are lower than algorithm. Subsequent empirical analysis found robustness rating renovated with was 94.06,...

Two columns of thin‐walled concrete‐filled steel tubes (CFSTs), in which tube seams are connected by self‐tapping screws, axial compression tested and FEM simulated; the influence local buckling on column bearing capacity is discussed. Failure modes square thin‐wall CFST are, first, plate then collapse concrete some corner edge areas. Interaction between makes continue to withstand higher forces after appears. A large deflection analysis for elastic reflects that equivalent uniform stress...

For steel-reinforced concrete (SRC)–reinforced (RC) hybrid frame structure, damage always appears in the transfer position of section configuration from SRC to RC. To explore failure modes and processes vulnerable stories SRC-RC structures, two frames, one only composed other filled with masonry walls, are tested quasi-statically. The index whole structure structural members is calculated using Park-Ang model. Furthermore, a weighted combination method calculate entire local members' indexes...

To promote the development of BIM technology in field identification and reinforcement existing buildings, this paper takes concrete structures as research object, refers to current building seismic standards, develops a BIM-based system for structures. The establishes corresponding data integration platform frame structure system. Through secondary Revit software, computer can automatically extract information generate model identification. study shows that program provide efficient...

The goal of this study is to fill apparent gap in the area about investigating effect porosity distributions on vibrational behavior FG sectorial plates resting a two-parameter elastic foundation. response medium formulated by Winkler/Pasternak model. internal pores and graphene platelets (GPLs) are distributed matrix either uniformly or non-uniformly according three different patterns. model proposed with material parameters varying thickness plate achieve graded both nanofillers. modulus...

Abstract Background The obesity rate of Beijing residents has been rapidly increasing in the past decades. incidence diseases caused by is high, and resident health a concern. According to public data published studies, may be related urban built environment. Methods In this study, set "resident health–urban environment" based on surveying mapping Shijingshan district registration status from top medical institutions developed. environment includes five factors: economic value location,...