A5003132807- Software Engineering Research
- Software Reliability and Analysis Research
- Software Engineering Techniques and Practices
- Masonry and Concrete Structural Analysis
- Seismic Performance and Analysis
- Seismology and Earthquake Studies
- Building materials and conservation
- Structural Health Monitoring Techniques
- Structural Engineering and Vibration Analysis
- Hygrothermal properties of building materials
- Environmental and Ecological Studies
- BIM and Construction Integration
- Structural Behavior of Reinforced Concrete
- Management, Economics, and Public Policy
- 3D Surveying and Cultural Heritage
- Seismic and Structural Analysis of Tall Buildings
- earthquake and tectonic studies
- Civil and Structural Engineering Research
- Earthquake Detection and Analysis
- Medieval Architecture and Archaeology
- Geotechnical Engineering and Underground Structures
- Architecture and Art History Studies
- Seismic Waves and Analysis
- Innovative concrete reinforcement materials
- Outsourcing and Supply Chain Management
Universidad Nacional Autónoma de México
2004-2020
Universidad Autónoma de la Ciudad de México
2018
Institute of Genomics and Integrative Biology
2014
University of Maryland, College Park
2005
IBM (United Kingdom)
2005
Bridge University
2005
United States Air Force
1979
A severe storm event occurred over the western area of Mexico City causing rupture a drainage tunnel, resulting in surface flooding, infrastructure damage and three deaths. This paper describes methodology followed order to validate diagnostic event. The detailed investigation comprised situ observation system, as well hydraulic structural analyses. In this case, pressure oscillations inside tunnel caused by rapid filling sudden air leakage through large orifice (manhole) were recognized...
Research Article| September 01, 1999 A Preliminary Report on the Tehuacan, Mexico Earthquake of June 15, (Mw = 7.0) S. K. Singh; Singh Search for other works by this author on: GSW Google Scholar M. Ordaz; Ordaz J. F. Pacheco; Pacheco R. Quaas; Quaas L. Alcantara; Alcantara Alcocer; Alcocer C. Gutierrez; Gutierrez Meli; Meli E. Ovando Seismological Letters (1999) 70 (5): 489–504. https://doi.org/10.1785/gssrl.70.5.489 Article history first online: 09 Mar 2017 Cite View This Citation Add to...
SUMMARY A shaking table testing program was undertaken with the main objective of providing basic information for calibration analytical models, and procedures determining seismic response typical stone masonry temples 16–18th centuries construction in Mexico. colonial temple chosen as a prototype. model at 1:8 geometric scale built same materials techniques prototype, subjected to horizontal vertical motions increasing intensities. The maximum applied intensity corresponded base shear force...
Measuring software functional size via standard Function Points Analysis (FPA) requires the availability of fully specified requirements and specific competencies. Most time, need to measure occurs well in advance with respect these ideal conditions, under lack complete information or skilled experts. To work around constraints official measurement process, several estimation methods for FPA have been proposed are commonly used. Among these, International User Group (IFPUG) has adopted...
A 14-storey reinforced concrete building and the underlying soil were instrumented with strong motion accelerographs to study amplification of seismic waves, soil-structure interaction structural response earthquakes buildings founded on soft soil, such as lake-bed area Mexico City. detailed investigation geotechnical properties site characteristics was performed, including measurement shear wave velocity in different layers. The instrumentation consists 14 accelerographs, two them...
Structural safety of colonial stone masonry buildings is severely jeopardized in most parts Mexico by earthquakes and ground subsidence. The situation particularly severe City where subsidence has been aggravated excessive extraction underground water. Despite frequent rehabilitations, cumulative damage caused differential settlements through the centuries led many these structures to a critical condition. This article provides general description causes their effects, reviews new techniques...
The Mexico City Cathedral underwent major rehabilitation during the 1990s to mitigate effect of extreme differential settlement. As part a comprehensive program, project undertook partial correction existing settlements and remedial interventions prevent additional settlement improve structural safety building. Monitoring response structure after was an essential component program because it enabled adjustments actions that were being undertaken in subsoil foundation. Subsequently, this...
The Early & Quick technique was originally proposed in 1997 for IFPUG Function Points, to size software early stages of the development process, when functional requirements are still be established a detailed form and/or rapid measure is needed existing from high-level viewpoint, within limited time. Typical lack measurement details and volatility project overcome by E&Q approach provide estimate as significant contribution planning needs. Fundamental principles classification analogy,...
Simple Function Point is a functional size measurement method that can be used in place of IFPUG Point, but requires much simpler - hence less time and effort consuming process. was designed to equivalent terms numerical results. This paper reports an empirical study aiming at verifying the effectiveness as method, especially suitable support estimation software development effort. The data from large popular public dataset were analyzed verify correlation with both measures results obtained...
The Early & Quick technique was originally proposed in 1997 for IFPUG Function Points, to size software early stages of the development process, when functional requirements are still be established a detailed form and/or rapid measure is needed existing from high-level viewpoint, within limited time. Typical lack measurement details and volatility project overcome by E&Q approach provide estimate as significant contribution planning needs. Fundamental principles classification analogy,...
This study was intended to find out about the extent in which sixteenth century Mexican convent builders followed certain patterns or rules determining structural elements dimensions and arrangement for their churches, specifically walls buttresses counteract vaults' thrust. The aimed know if stated building treatises from that period have a rational foundation they were used these buildings. For this purpose, parametric performed on nave model covered by most typical types of vault found...
Abstract The seismic response of the Mexico City Cathedral built very soft soil deposits is evaluated by using motions recorded in various parts structure during several moderate earthquakes. This unique set records provides significant insight into this and other similar historic stone masonry structures. Free‐field ground are carefully compared time frequency domains with at building basement. dynamic characteristics inferred from earthquake system identification techniques. Variation for...
A two-story waffle–flat-plate reinforced-concrete model structure was subjected to cyclic loading simulating a severe earthquake. The test one-third-scale that represented structural system is common in Mexico City and had high rate of damage during the 1985 designed with widely spaced column transverse reinforcement closed stirrups slab solid heads around columns. At failure, specimen showed flexural shear columns, large distress waffle slabs. low lateral stiffness, which overestimated by...
Response of simple structural models to the peculiar ground motions recorded in lake-bed area Mexico City was analyzed order explain performance typical buildings during 1985 earthquake. Results for one-degree freedom systems with different kinds inelastic behavior show that when hysteresis loops remain stable under several cycles large deformations, exceptionally reductions response take place. Nevertheless, if some degradation strength displacements, increases sharply same critical...
Some of the structural earthquake-disaster mitigation programs implemented in developing countries are evaluated, with an emphasis on Latin America. Recommendations for reducing vulnerability engineered construction include following: (1) promote use systems a built-in large seismic capacity; (2) avoid adoption among practitioners new building technologies without previous process review and assimilation; (3) develop specific design rehabilitation requirements critical facilities; (4)...
A large repertoire of gene-centric data has been generated in the field zebrafish biology. Although bulk these are available public domain, most them not readily accessible or nonstandard formats. One major challenge is to unify and integrate widely scattered sources. We tested hypothesis that active community participation could be a viable option address this challenge. present here our approach create standards for assimilation sharing information system open database intercommunication....