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Concrete is characterized by strong compressive strength, but is relatively weak in tension and shear. It can support large axial loads and is widely used in foundations of large structures such as bridges and high-rise floors where it rests and is easily bent under without reinforcement. Concrete compressive strength of 3,000 to 6,000 pounds per square inch (psi) is common.
The American Concrete Institute defines any specific proliferation safety initiative as high-strength concrete with more than 6,000 proliferation safety initiatives.
The flexural strength required for the structure is to resist the bending moment, and the reinforcement - the reinforcement - is embedded in the concrete. In some cases, tensioned cables are placed in concrete to make prestressed or post-tensioned prestressed concrete. The tension against the bending moment comes from the rebar, or the emphasis on the cable.
For the concrete mix ratio to reach its ultimate strength, a long period of time is necessary. The final concrete strength is not the same as its 28-day strength. For design purposes, the engineer used 28 days of strength, and the specific should be subjected only to the minimum load until 28 days had passed.
This rule is very hard forced in heavy construction. This is not at all rare to work in residential multi-storey commercial buildings to handle in a 3-day floor cycle. Concrete one day, form and shore up and down the first floor in the next two days, which makes the minimum load on the new slab, and then the third day of concrete takes place.
This ranking increases the load to the load that was previously placed underground, but the load is carried out mainly by supporting, passing through several floors, thus transferring the load to concretely, has time to reach its ultimate strength. Note the support and reshoring in the diagram. Is in place, the depth of the slab below four floors is indicated, currently being placed.
Extreme strength concrete.
The compressive strength of the concrete continues to grow slowly for many months. The ultimate strength may be higher than the 28-day strength, which is used for design calculations).
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In effect, the site surrounding the building is divided into three semi-separate spaces: the south entrance, the play space to the west, and a quiet garden full of trees. The main entrance is subtly emphasized by a sloping library side, a laboratory and administrative area side with an indoor gymnasium and coffee bar setting.
The main axis of the interior section is north-south, with the lab and most of the classrooms having a view of the orchard to the east, and a small discussion space facing west. Therefore, all the rooms are arranged in a reasonable way, and the large public space can avoid the heat and glare of the evening. The small rooms (the indoor microclimate can be easily controlled) face the afternoon and evening sun.
It's time to eat, and I'm going to turn it back
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Translate English to Chinese (Simplified).
Incremental dynamic analysis.
Incremental dynamic analysis is a parametric method in which a structure is subjected to a series of nonlinear ground movements over a historical period of increasing intensity [4], with the actual objective of the objective being fought for an accurate reflection of the dynamic response of the structure. Compare incremental dynamic analysis and pushback results.
It can be analyzed, for example, in terms of the foundation shear displacement relationship. One point for each IDA is to select the maximum basal shear force to evaluate the highest vertex displacement to achieve within seconds of each dynamic analysis and the corresponding time interval.
Although the average point value curve is obtained corresponding to different dynamic analyses.
Rather than the relationship of the base shear top displacement, it can be seen as an important statistical trend that pushover analysis hopes to reproduce. In this study, the input was dynamically analyzed for quad spectrum-compatible artificial acceleration (results are shown for acceptor-1, argon-2, argon-3, acceptor-4). From [5] the response spectrum, has been employed, taking into account ** band, grade 2 and type B ground.
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2。Incremental dynamic analysis.
Based on the incremental dynamic analysis method in the structure affected by the series.
**Function. Results are compared with incremental dynamic analysis and bullying.
Analyze, for example, the relationship between the shear-top displacements from the foundation. Each Ida point of view is to evaluate the maximum displacement selected to cut seconds in the interval between each dynamic analysis and the corresponding maximum base.
Although the integration of the mean curve corresponds to different dynamic analyses on the basis of the non-shear-top displacement relationship, it can be considered an important statistical trend.
It is necessary to multiply by repeating the analysis. In the current study, dynamic analysis of the input of four spectrum-compatible artificial accelerograms (results showed, AR-2, AR-3, AR-1, AR-4). In response to each field, on the basis of [5], the second shift is utilized, taking into account the ** band on the grounding type B.
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2。Incremental Dynamic Analysis Incremental dynamic analysis is a parametric method in which a structure suffers from a nonlinear ground movement over time, increasing the intensity of the historical series [4], and the dynamic response of the actual structure is fought to accurately reflect the objectively subjected to the action. The results of the dynamic analysis and pushover analysis between the increments are comparable, for example, in the relation to the displacement of the foundation shear.
The International Development Association (IDA) is the highest rated for each vertex, and the time interval for the analysis of the movement state and the number of seconds within each vertex is chosen to achieve the corresponding maximum basal shear force. Although the mean value obtained by the points corresponds to different dynamic analyses and is not a relationship between the top displacements, it can be considered as an important statistical trend based on which the pushback analysis is to be reproduced. In the present study, dynamic analysis was performed by entering four spectral compatible artificial accelerations (the results are shown for acceptor-1, argon-2 acceptor-3, and argon-4).
From [5] the response spectrum, has been employed, taking into account ** band, grade 2 and type B ground.
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"Modulus, as it came to be called, means ingredient grid, which will be in the building code for all objects, from the design of a door and furniture, to the design and construction of a room. If accepted, and the system is established, the resulting building and its components will not only directly express modern industry, but also provide a harmonious design and scale of infinite variety.
These numbers have an interesting nature, and are often evident in nature and art, which is also noteworthy for its uniqueness, with the Split Rectangle, after three years the proportional relationship of any two adjacent numbers in the Fibonacci sequence is approximately the same proportional ratio found in the Split Rectangle. )
Your eyes are the only ones you should know about the judge. "Modulus" is a working tool, precision instruments, keyboards, we should say, a piano, piano tuning. The piano has been tuned: it's for you to play well".
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Architectural professional English translator, I know a company that can translate, called Gongming Translation!
We have worked together a few times in the past, and the translation and service are very good, which should meet your requirements for translation now.
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Modulus, as it came to be called, means a proportional grid to regulate the construction of all objects, from the design of a door, to the furniture, to the design of an interior with architecture. If this system is accepted and built, the resulting building and its components will not only be a direct expression of modern industry, but will also provide an infinite variety of coordinated designs and scales. (These figures have interesting properties, often overtly natural and artistic.)
It is noteworthy for its unique, split-rectangle, which is approximately the same proportions as any adjacent Fibonacci sequence III than found in the rectangle. "Your eyes are your only judges, you should know...."Modulus" is a tool, a precision instrument; The keyboard can be said to be piano, piano tuning. The piano has been adjusted:
It's a good time for you guys. ”
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With the growing demand for people's outdoor activity environmentIn modern urban life, the humanized design of urban public space landscapes has become more and more important. Each public space is made up of many small spaces, spaces combined; Humanized design directly affects the quality and atmosphere of the entire space. At the same time, all public places are tangible material spaces, so that the humanized space environment and human behavior and psychological considerations are to have a certain satisfaction of the function and compliance of the sensory organs, human needs, pay attention to the user's behavior and psychological feelings.
The high efficiency, good order, pleasant dimensions, safety and comfort of the urban public space environment are our design goals.
The urban public space environment is also a collection of materials and cultural factors to live together. The landscape design of urban public space should fully reveal the concept of modern choice and tolerance, so that those harmless functions, especially the disappearing material factors and cultural connotations, can fully tap the pulse of regional culture, so that the space under the premise of modern ecology and scientific and technological innovation, in line with the requirements of the overall ecological environment of the city in the way of its own vitality garden landscape freshness. Each stage of urban civilization will reflect the level of scientific development and the aesthetic consciousness of that stage and the era.
In respecting the cultural pulse and emphasizing the connotation of regional culture, the design of urban public space landscape should grasp the characteristics of the times, rationally use science, technology and advanced concepts, make the created space environment personalized, and form a special contemporary landscape culture. Actively promote the progress of improving the social awareness of the material environment of the space, and realize the functional characteristics of the urban public space through the humanized design of the space, and win the characteristics of culture and citizenship as the future yield and the inheritance of tradition provide a variety of options.
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With the increasing environmental requirements of modern urban residents for outdoor activities, the humanized design of urban public places has become more prominent. Each public place is composed of many small spaces, and the user-friendly design will directly affect the quality and atmosphere of the whole place. At the same time, because each public place is a tangible material space, if the humanized space environment is combined with people's behavior and psychology, it will inevitably create a satisfactory functional effect, meet people's sensory needs, and put residents' behavioral feelings and psychological feelings in a prominent position.
Efficient, orderly, safe, comfortable and well-sizable public space environment is our design goal.
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Hello. Corrosion between time and time begins to be based on the principle of relative.
Protection provided to the steel around the plains and microsilica-blended cement concrete crank due to the proof of two reasons: first, the process of corrosion.
contains two distinct phases, Brown 1983 and Tuutti 1980), corrosion.
Teaching assistants during the Enlightenment and corroding the spread of time. Corrode.
The propagation time leads to a definite level of unacceptable harm. Dehiscence.
and spalling concrete, although often failing applicability.
Injuries serious enough to be considered unacceptable. What's more, cracking and spalling of the concrete of the concrete quickly followed by initial corrosion.
Spellman and Stratfull (1969) reported less since 25 m (1 ferro).
Steel transformation into its characteristic corrosion products can be caused.
A crack in the concrete. Secondly, this standard is adopted.
Because when propagating is very sensitive to a large number of random.
factors (e.g. oxygen flow, temperature, resistivity of concrete, cover.)
thickness and mass, scale and spacing bars and moisture content
The tensile strength of concrete specimens is therefore very difficult to quantify.
4) Practical and actionable.
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