Response Modification Factors for Multi-Span Reinforced Concrete Bridges in Pakistan
نویسندگان
چکیده
In Pakistan, updated codes covering seismic provisions for reinforced concrete bridges do not exist. The majority of the bridge design uses different versions AASTHO-LRFD provisions. Response modification factors recommended usage in these are primarily derived from conditions and United States America. This research focuses on assessment three real multi-spans simply supported Pakistan having multiple bents. typology is very common Pakistan. Non-linear static pushover analysis performed to derive capacity curves bridges, which were used compute response factors. study results show that vary between 4.50 5.0 longitudinal transverse directions. this work may serve as input developing code
منابع مشابه
Steel versus Steel-reinforced Concrete Bridges: Environmental Assessment
Bridge material selection has traditionally been b~ed on e.ngineering and economi~ criteria. With the increasing interest of the public, industry, and government m sustainable:: development, en~lronmental. assessment in construction is becoming more important. However, we need metrtcs and data on deSign alternatives for effective decision making. In this paper, we present results of a life cycl...
متن کاملCalibration of Load and Resistance Factors for Reinforced Concrete
Current approach for designing of reinforced concrete members is based on the load and resistance factor. However the load and resistance parameters are random variables, the constant values have been designated for them in the designing procedure. Assuming these factors as the constants, will be led to the unsafe and uneconomical designs. Safe designing of structures requires appropriate recog...
متن کاملMulti-objective Optimization of Reinforced Concrete Frames
1. Abstract This paper presents a discrete optimization of reinforced concrete structures based on an efficient combination of deterministic and stochastic optimization strategies. The deterministic optimization algorithm is used for the detailing of a reinforced concrete crosssection for a given combination of internal forces. The multi-objective stochastic optimization algorithm is then appli...
متن کاملModification of Displacement Coefficient Method in Estimation of Target Displacement for Regular Concrete Bridges Based on ASCE 41-06 Standard
Displacement Coefficient Method (DCM) stipulated in the ASCE 41-06 standard is becoming the preferred method for seismic rehabilitation of buildings in many high-seismic-hazard countries. Applications of the method for non-building constructions such as bridges are beyond the scope of this standard. Thus its application to this kind of structure should be approached with care. Target displaceme...
متن کاملSeismic Response of Reinforced Concrete Columns
There are a large number of reinforced concrete buildings in seismically active areas of the world that are not built in accordance with modern seismic design provisions such as those published by American Concrete Institution ([ACI] Committee 318, 2008). In the United States and other parts of the developed world, these buildings were constructed between 1930s to mid 1970s according to the bui...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Buildings
سال: 2022
ISSN: ['2075-5309']
DOI: https://doi.org/10.3390/buildings12070921