Construction Engineering - Science topic

Complex graphical sketches are highly involved in Culmann's methods. Therefore, it is highly prone for getting deviations in magnitudes for resultant pressure on retaining wall. I would like to get suggestions from RG colleagues on why Culmann's graphical approach is mostly preferred in many research papers albeit Rankine's method is easy and precise in terms of equations and substitutions. I would welcome answers from both theoretical and practical perspectives.

What should we do for this thesis topic?

Material Flow Analysis (MFA) is often applied at regional and urban level in order to understand and improve flows and stocks of construction materials.

Do you know examples (case studies or conceptual frameworks) of an MFA applied at building level (for instance a single residential or office building) ?

Thank you for your contribution.

I hold an M.Tech degree in Construction Engineering and Management. I work in a CPSU in India. I want to pursue a Ph.D. as a part-time external candidate in one of the universities in Tamilnadu, or Karnataka.. What are the trends for areas of research in Civil Engineering. Also suggest college/university where the same could be taken up. I belong to Tamilnadu and presently working in Karnataka.

To whom it may concern...

Case shown in pictures below need to stop in front of it...

Starting with the way of supporting slab before casting.. the question appear...

Based on your engineering opinion, and supporting method that you might used... is what shown in pictures attached ,.. enough.. ?

Then... whom responsibility is that... if slab fail during casting process, as there will be additional loading of pumped concrete and labors also ...? where that will be the most important question....

To whom it may concern...

Case shown in pictures below need to stop in front of it...

What the mean of overload... What will be the meaning of calculated loading before design... and.... What really mean the structural design based on submitted data..

All, in general,.. knows that.. design start with converting functional use of the building to loading on structural element... then start design element by element ...

So, what might be the supposed loading to one story house... based on all adopted code... ? this is the first question..

Then what you think, .. or what the supervisor engineer might think the value of such loading on that slab shown in pictures attached... ? this is the second question...

Then at last... whom responsibility is that... if failure occur...? where that will be the most important question....

Limited education with low experiences causes such cases, ... or... we need to ask the supervised engineer if he care...

Picture attached shows the case of complete reinforcement of raft foundation, but after sand storm, as appear, more than 20mm layer form from sand under the reinforcement.... on your opinion, what might do to continue with work...?

Hi,

While each of the 4 main criteria can include many sub-criteria, this question is about how companies in real-world projects set boundaries between them in their documentations (submittals and reports). For example, the training of project people criterion is it reported in the cost, or the quality, or the sustainability. Are there any references for these boundaries? With my very limited experience, I think tools like BREEAM and ISO are not clear enough for me as an academic student to help setting up such boundaries.

Please, can you indicate if your answer is based on project experience in this field?

Thank you very much beforehand.

Respected Sir/Madam,

I am currently undertaking my master’s dissertation, which critically analyses delays in road construction projects in India through this questionnaire. For the purposes of my dissertation, all information provided will be handled with utmost confidentiality.

I would be most grateful if you could take some few minutes to fill in the questionnaire attached to this letter.

Road Constructing Engineers, Contractors, Consultants and experienced experts can take this survey.

email id: madhuvasipalli@gmail.com

I need suggestions for a PhD research in the field of Construction Engineering and Management?

Assuming we have a piece of timber C16 - 100x100x1000mm and we apply UDL + a point load at middle point on it (parallel to the fibre) as shown below, how much will the timber compress between the force and the concrete surface ?

I have attached a sketch as well. Please see below.

If you could show a detailed calculation would be much appreciated. Thank you!

Exfoliated Kaolinite-Clay.

Thanks in advance.

Dear Colleagues,

Construction project management is a process that includes a number of operations, activities, and decisions that are closely related to an executed investment and that aim to create new, or to increase, existing fixed assets in order to achieve utility effects. The utility effect of the construction process may be the construction of a new building, or the renovation or modernization of an existing building. In each construction process, according to the definition of the building object's life cycle, the following four basic phases are distinguished: the programming/planning phase, the implementation phase, the operation/use/maintenance phase, and the phase of decommissioning or demolition. Appropriate planning of the entire construction process is a very important operation, which has a direct impact on whether success is achieved when implementing an investment project.

The construction industry is characterized by a high complexity of implemented construction processes, variability of implementation conditions, diversity of facilities, applied technologies, and methods of work organization. The execution of construction projects is specific and particularly difficult because each implementation is a unique, complex, and dynamic process that consists of several or more subprocesses related to each other, in which various participants of the investment process take part.

Therefore, there is still a vital need to study, research, and conclude engineering technology and management applied in construction projects.

We encourage publishing applied results of research.

I am doing a comparative LCA study between different roads in EU and I am looking for data related to machines used during (for instance: laying the pavement, etc.) the construction and maintenance phase of the road ( ex. per 1m2 or 1 km of road).

Thanks!!

I mean the use of the SQUG database to assess the seismic resistance of NPP equipment with the specified type of reactor.

Do you know someone that can be interested?

Professor of Construction Engineering

Ecole de Technologie Superieure

Construction Engineering Department

Montreal, QC, Canada

Date Posted: Feb. 8, 2021

Hi everyone,

to calculate the prying forces in the column base plate connections, we need to get the contact reaction between the plate and the concrete, but in my model, I have a part in compression and another one in tension. so how can I evaluate the surface of the plate in tension under the cyclic load ?

I have seen that tensile strength of concrete is always lower than compressive strength values (generally 10-12 folds). How can we enhance the tensile strength of the concrete? Is it possible to enhance up to levels similar to compressive strength values either by addition of some SCMs, pozzolanic materials, admixtures, superplasticizers etc. or do we have to change the grade of concrete i.e. M20, M30....... M60 ....so on .., SCC, etc.?

Two similar term in civil engineering.. Foundation and Footing.. any differences between...?

SRT = british pendulum

In the development of an efficient construction and demolition waste management model, the evaluation of several aspects is necessary. What aspects do you consider relevant in the development of this model?

Do you know any example/case study using state of the art technology for waste management? (e.g., GIS, BIM, Computational tools, Computation Design)

We are working on the visualisation techniques and welcome to your participation.

What are the best methods to compare two or more construction material/product standards from different countries?

My prefered area is in Waste management & BIM , where I have read about using 4D BIM & 5D in waste management , but I have not reached a significant research gap to work on it, so is there any suggestion towards gap areas in using BIM towards waste management?

I need to model a construction and demolition waste management network in order to maximize waste recycling. I read some works that use MILP. Among the software used are GAMS, JULIA, MATLAB and R. Are there other software that can be used?

Looking for good information sources, both academic sources and practical examples.

Informed opinions, comments and other types of answers are very much appreciated.

I am planning to build a website " ALL ABOUT CIVIL ENGINEERING " which aims to help students as well as engineers, my goal is to have a website wherein all the material regarding civil engineering is available on this website, who would like to be part of this website by providing me help to build this website, it will be totally educational website focusing on students and engineers, initially planned to keep search tab, providing my youtube links as free lectures,  providing previous years question papers of various universities, IS codes and other countries codes pertaining to civil engineering, Q & A forum to ask questions related to civil engineering by logging in, separate tab for all notes of all subjects and practicals, and also separate section for the articles related to the advances in civil engineering. These are the initial requirements i have planned.

I was wondering if anyone comes across any latest publications on the environmental indicators/measures for adopting prefabrication/modular in any construction applications (commercial/high-rise buildings, building services…etc).

Upon your experience on site and concrete on site, the phenomena of discolored of concrete might happens... how do you fix that?

I'd like to analyze a cabled truss structure with opensees which includes both bar and cable elements. As I know bar elements are under tension and compression but cable materials are just under tension. First, how can I define a cable element with pre-stressed value, second, how can I intermix both bar element stiffness and cable stiffness to analyze it nonlinearly ? I know how to define a bar element in opensees but how about a cable element?

Any comment would be appreciated

Thanks in advacne

Shall construction robots function independently from context factors as stand-alone products (and be designed as such) or be seen, developed, and operated as systems integrated with the context? Or both? Or none? Both directions have advantages and disadvantages of course. What is your experience/opinion on this?

Based on an efficient Construction and Demolition Waste (CDW) management it's possible to minimize the irregular deposition of these residues and also to increase their recycling and reuse as material for civil construction. However, there are several aspects that can be used in CDW management. The development of a CDW management model will assist municipalities in adopting actions that bring economic, environmental and social benefits.

Using success cases from some cities makes it possible to understand some aspects that optimized the CDW management in those places. The challenge is to create a model that has broader applicability. In this research, two tools will be used: Multicriteria Decision Analysis (MCDA - AHP) and Geographic Information System (GIS).

At this point, it is necessary to raise (your help is fundamental) the aspects that are relevant in the CDW Management. Thanks for support!

Can you Share with us a world class achievement or a well known World recognized project in which you contributed or participated effectively in its success?

I am a student at Ghulam Ishaq Khan Institute, Pakistan and I am conducting research on evaluating the barriers to adoption of industry 4.0 in the construction industry of developing countries with Pakistan as a case in point. You are requested to fill the questionnaire attached. It will take 15-20 minutes of your precious time. Your response will be highly acknowledged. The questionnaire is attached. Once the survey has been filled, kindly reply to this discussion with the updated response file.

Thanks

To whom involved or have an experience in the Egyptian construction industry,

I would appreciate your participation in the survey of my PhD research for minimising waste in the Egyptian construction industry using the English or Arabic version through the following links:

English version:

Arabic version:

Thank you for you kind help in advance.

I am working on developing fully pearlitic steels with fine interlamellar spacing. I am going to heat up samples to austenization temperature (1000 degC) at a heating rate of 10 degC per second and hold/soak it at austenization temperature for 10 min and cool it down to room temperature at 0.2 degC/sec. This is possible for lab scale samples. I would like to know if there are heat treatment methods for decreasing austenization holding time for thick and heavy samples around 500-800 kg to obtain fully pearlitic microstructure.

Hello,

presently we are joining big (example 5 meter X 5 meter) laminates using bolts or some other aiding material etc etc. My question is how to join these big panels with zero radius. and if it is there what is the price?? Thank you in advance. Material is glass reinforced polyester laminates.

Could any one share real time examples for Start to Finish (SF), Start to Start (SS)and Finish to Finish (FF) dependencies?

how to reduce shrinkage cracks while using OPC 53

Upon your site experience, when we use stud rails?

Upon your site experience, how can we repair the defect on beam due to steel corrosion?

Upon your site experience, is it acceptable to make a join with ground beams?

Upon your site experience, what must done, if the consultant reject part form the work carried out by the contractor?

Upon your site experience, How you can estimate the production date for cement in site, and if its expire or not?

Upon your site experience, What is the main problems appear when concrete delay two hour during casting?

Upon your site experience, How can you repair the concrete defects on manhole walls?

Upon your site experience, What is the best time on the day for site concrete casting?

1. Upon your site experience, What do you recommend for inclined column due to casting inaccuracy? And what the range of acceptance?

Upon your site experience, What are the main criteria need to be considered when design building against seismic?

Upon your site experience, What is the maximum storage time for cement in site?

Finding Amount of delays (in civil construction engineering) its causes has become so much routine nowadays. What stops construction theory scientists from finding a solution for this problem ?

Obviously, for a complex problem, is complex solution is also expected. But I dont understand why this directions so much neglected.

In China, entire metropolises are built according to the plan of sustainable smart cities. An example is Shenzen, which over 30 years ago was a small village and is now a modern metropolis. In addition, other cities of this type are planned to be built from scratch in the next 30 years. Some of these metropolises, which are currently planned for construction, are to be almost completely autonomous in terms of energy and in terms of food supply. These new pro-ecological metropolises, planned as smart city cities, contain many greenery and include crop fields and solar power plants at the periphery.

Please reply

Best wishes

please provide some information about new materials and technique for lightweight concrete(less than 500kg/m3 density) production.

Seismic Design: How can I perform rigorously the SAP/ETABS analysis of the building constructed using "interlocking bricks technology"?

Theoretically, what is the main stresses created on new concrete cast over old one, that might effect its bond?

Upon your experience, what is the best material to connect new concrete over an old already cast?

If you have any data regarding these materials.... please share...

I'm looking for the ratios of cement : sand : aggregates + water.

Please reply by referring valid references.

I want to assign the properties of brick, mortar and interface in the modelling of an unreinforced masonry wall.

Technical question about the possibility of replacing construction fine aggregate by river sand or desert sand...?

Technically, how can we stop leakage started on a basement due to increasing water table outside the building?

Overall Sciences ... Overall Designs... Do we need always to consider Factor of Safety ... ?

Years passed from first time using the finite element method to simulate almost all cases within a recommendation that its fit to predict a similar behavior of the experimental programs, .. What did you think upon your opinion...?

Do you have any studies backing up estimation of percent damages to structural components of residential houses or buildings in general?

Major question.. give me your logical definition and whats the deference in application....

Based on your experience, how can I maintain quality construction, while constructing building?

Upon your experience.. in construction material.. can we

re-used the reinforcement extracted from demolition of a building for the construction of a new building?

Based on your experience.. want building to be look like they are part from nature...

In details ... need to know What is a work environment plan?

Upon your site experience and works, can you define the geopolymer concrete, ....

I have the test in laboratory on a shake table and I would like to use the Fourier spectra to identify the fundamental period of vibration.

From your structural point of view and experience, what is the largest span lengths can be achieved with hollowcore plank systems?

With increase using of precast concrete members, ... can its damaged units reused...?

In practical, does it common practice to weld alternate ends for hollow core precast system.... need your opinion ?

Late in 2012, the coastal town of Lynn, Mass., petitioned Marinetek, a Finland-based manufacturer of harbor products, to replace its aging dock systems located within the town’s seaport marina. An important question for both the town and contractor became, “Which solution will provide the durability and functionality necessary to withstand the elements and get the job done right?”

Its a technical question..

Within the wide use of precast concrete technology... does the precast concrete considered energy efficient?