scholarly journals ANALYSIS OF POWER SUPPORT BEHIND PILE AND GIRDER BRIDGE ABUTMENT RANDUMERAK LOAD ON VERTICAL AND HORIZONTAL

Neutron ◽  
2019 ◽  
Vol 19 (1) ◽  
pp. 80-96
Author(s):  
Dimas Wahyu Tri Pamungkas ◽  
Helmy Darjanto

Construction of pile foundations is also called a foundation in construction enabled to heavy loads (high rise building). Before the implementation of the construction of the first construction is implemented and carried out in the field is the work of the foundation (bottom structure). Foundation work itself is very important for civil engineering works, because this is the foundation that secures simultaneously carry the load working on the construction. This study aimed to analyze the carrying capacity and the forces acting on the pile working from the Standard Penetration Test (SPT), the data kalendering pile installation time, then the data terbebut in include into the application to determine how far the resilience of construction are already working. Methodology The data collection is done by making observations, collecting data from the project and conduct a literature study. From the analysis of the structure obtained by the forces at work in the use of the calculation of the structure. The calculations show that the pile cap and slab reinforcement in accordance with the moment that occurs, the strength and bearing capacity of the pile meet safety requirements.

UKaRsT ◽  
2019 ◽  
Vol 3 (2) ◽  
pp. 31
Author(s):  
Dwi Kartikasari ◽  
Deny Sanhadi

Foundation planning must be done carefully and correctly. The planning of this foundation aims to compare the axial forces acting with the carrying capacity of the foundation between the original foundation that spooked the spune pile and bored pile on the construction of the Lamongan Regency Government office building to obtain safe control. The carrying capacity of the foundation is planned to use Standard Penetration Test (SPT) data. The initial calculation of loading analysis includes dead load, live load and earthquake. These expenses are combined then analyzed with the Staad.Pro program. The reduction calculation uses a method of reduction in clay. Calculation of pile cap and foundation reinforcement using SNI 1726-2012. The output of the Staad.Pro program is obtained axial force in the column that is reviewed at 1260 kN. Carrying capacity of a single pole pole diameter of 40 cm with a depth of 20 m obtained compressive strength of 431.49 kN. Taking into account the efficiency figures obtained group carrying capacity (Qg) of 1715.52 kN> 1260 kN, so that it meets the requirements. The flexural reinforcement D16-125 mm is planned to hold the moment in the pile cap which occurs at 211.6 kN-m. The decrease in total (St) is the immediate total decrease (Si) and the decrease in consolidation (Sc) which is 1.673 <15 cm. The decrease in total (St) on the group pole meets the permitted conditions for the building based on the Geotechnical RSNI.


Author(s):  
Wen-Gang Qi ◽  
Jing-Kui Tian ◽  
Hong-You Zheng ◽  
Hai-Yan Wang ◽  
Jing Yang ◽  
...  

2022 ◽  
Vol 2022 ◽  
pp. 1-11
Author(s):  
Fei Guo ◽  
Heng Cai ◽  
Huifang Li

In the current vehicle-bridge dynamics research studies, displacement impact coefficients are often used to replace the moment and shear force impact coefficients, and the vehicle model is also simplified as a moving-load model without considering the contribution of vehicle stiffness and damping to the system in some concerned research studies, which cannot really reflect the mechanical behavior of the structures under vehicle dynamic loads. This paper presents a vehicle-bridge coupling model for the prediction of dynamic responses and impact coefficient of the long-span curved bending beam bridge. The element stiffness matrix and mass matrix of a curved box girder bridge with 9 freedom degrees are directly deduced based on the principle of virtual work and dynamic finite element theory. The vibration equations of vehicle-bridge coupling are established by introducing vehicle mode with 7 freedom degrees. The Newmark-β method is adopted to solve vibration response of the system under vehicle dynamic loads, and the influences of flatness of bridge surface, vehicle speed, load weight, and primary beam stiffness on the impact coefficient are comprehensively discussed. The results indicate that the impact coefficient presents a nonlinear increment as the flatness of bridge surface changes from good to terrible. The vehicle-bridge coupling system resonates when the vehicle speeds reach 60 km/h and 100 km/h. The moment design value will maximally increase by 2.89%, and the shear force design value will maximally decrease by 34.9% when replacing moment and shear force impact coefficients with the displacement impact coefficient for the section internal force design. The load weight has a little influence on the impact coefficient; the displacement and moment impact coefficients are decreased with an increase in primary beam stiffness, while the shear force impact coefficient is increased with an increase in primary beam stiffness. The theoretical results presented in this paper agree well with the ANSYS results.


2020 ◽  
Author(s):  
thobias sarbunan

Slang uses referred to modernity, language assimilation, and language variety in socialdiscourses; that underlined the background to the reason of young generation toassimilate and modification, as a tool for communicating also socialization. Importantly,slang even the outer level of young ages, will interpret as negative meanings, but theygoing to acquire in variety moment. That culture or we can appeal as language behave,promoting their boundaries as independent language user. In further slang became thesymbol of freedom of speech, the popularity of zoom generation, a group of human classentity, and modern life. All perspective above, that grounded and interrelated to slanguses, was implicating to the use of Anjay word [as the representative or reflection of thevarious slang in Indonesia]. A word such Anjay, transported from negative meaningswhich rooting of [dog-word; in Bahasa Indonesia as Anjing] became one of popular slangthat expressed of enthusiasm, adore, joke, love, and friendship to one object.Unpredictable and unthinkable, why, today, as researcher try to describe this topic, thatword was problematic to the outer ages of young generation. We have to notice that,Anjay popularity have been using for years, and Indonesian known as one of our Prokemor in English call Slang. Besides that, the highest trend of the uses of that word wasachieving in period of YouTube golden age likes in the mid of pandemic. There hasnumerous user of Anjay word in the moment of speaking. To adhere that issue, researcherwas in purpose to describe from scientific attention, in short the interchangeable oflanguage scope to the Anjay word in depth, the method was literature study that compiledof journal-thesis-and bachelor paper. Result showed that slang in general studies, wereseveral of type. So that, we have to consider not also the root of word, but the locus,segment of the user, the reason behind the slang used, and the other language studiesfactor, such as semantic, lexicon, sociolinguistic, psycholinguistic. Shortly, Anjay wordinterpretation or description, considered as various slang that not only simply to relate fornegative meanings as its viral discussion, but as the language expression to the entitygroup such young ages.


Author(s):  
Nusa Setiani Triastuti ◽  
Indriasari Indriasari

<p><em>Pile foundation is one of the solutions of high-rise buildings not in the area of restrict area. When the pile foundation reached until the hard ground reaches, a small settlement is expected and  different  setlement  are  not occur. The objective: analyze the results of loading tests compared carryng capacity calculations, pile cap thick required secure.</em></p><p><em>The research method used in this research is the case study of pile foundation  twelve floors building in Batam island. The reaction on the pile is analyzed using software program of non-linear structure version 9.5 which is supported by primary data, namely loading test and secondary data of soil investigation and the largest column force taken on the pole 1.618,854 ton, Mx -7,936 ton meter, My -75,531 ton meter.</em></p><p><em>Carrying capacity analysis is based on friction and end bearing and calculated pole efficiency. The axial load of the plan is supported by 16 (sixteen) piles, based on the loading test (P) the ultimate pile foundation reaches 200% (two hundred percent) in the amount of 411.52 tons. </em><em>Single pile carrying capacity is 205.76 tons .Settlement in the loading test results 10mm is smaller than from the setlement in calculation results. The stress acting on the pile cap of 12.453 kg/cm<sup>2</sup> is smaller than the permit strees of 13 kg/cm<sup>2</sup>.</em></p>


2018 ◽  
Vol 33 ◽  
pp. 03042
Author(s):  
Violetta Politi

This paper describes the assessment of the probabilistic risk of an accident formed in the process of designing a technically complex facility. It considers values of conditional probabilities of the compliance of load-bearing structures with safety requirements, provides an approximate list of significant errors of the designer and analyzes the relationship between the degree of compliance and the level of danger of errors. It describes and proposes for implementation the regulated procedures related to the assessment of the safety level of constructive solutions and the reliability of the construction process participants.


2011 ◽  
Vol 71-78 ◽  
pp. 465-469
Author(s):  
Bai Tao Mao

A city high-rise building of the environmental balance, and its prominent position in the image and the place has a special symbol. However, high-rise buildings developed to reduce the symbolic value that it has attributed to the relevant system of architectural forms. As more and more dense urban high-rise buildings stand, we should be carefully evaluated: its ecological evvironment, will be the effect? Because of its height and volume, a high-rise building than in the top or bottom is likely in terms of physical environment on the social environment and the impact is much greater. Disturb the existing high-rise buildings in varying degrees between the various functions of the city, increasing the city high-rise buildings in the moment, how to properly control the rapid of high-rise buildings in order to maintain a sustainable ecosystem, is a question worth considering.


2017 ◽  
Vol 62 (1) ◽  
pp. 232-249 ◽  
Author(s):  
Mohammad Jalilzadeh Afshari ◽  
Ali Kheyroddin ◽  
Majid Gholhaki

Necessity for adaption of high-rise reinforced concrete structures’ design and practical steps of implementation through nonlinear staged analysis by consideration of long-term behavior of concrete have always been strongly recommended by researchers in recent years. Cumulative column shortening in conventional analyses is the most important consequence of neglecting the above issues. In this article, numerous modeling and extensive nonlinear staged analyses are carried out on structures with different geometrical characteristics and extremely simple empirical equations to estimate column shortening caused by creep, shrinkage and time changes of modulus of elasticity are provided in such a way that these relations can be independent of conventional parameters of ACI209R-92 regulations used in prediction of mentioned axial strains. Results obtained from validation of the proposed equations show high compliance of all proposed equations for up to 30 floors and also show accuracy of proposed shrinkage equation for the moment frame structures higher than the studied range.


2018 ◽  
Vol 33 ◽  
pp. 03044 ◽  
Author(s):  
Anastasiya Balakina ◽  
Tatyana Simankina ◽  
Vitaly Lukinov

High-rise construction is a complex construction process, requiring the use of more perfected and sophisticated tools for design, planning and construction management. The use of BIM-technologies allows minimizing the risks associated with design errors and errors that occur during construction. This article discusses a visual planning method using the 4D model, which allows the project team to create an accurate and complete construction plan, which is much more difficult to achieve with the help of traditional planning methods. The use of the 4D model in the construction of a 70-story building allowed to detect spatial and temporal errors before the start of construction work. In addition to identifying design errors, 4D modeling has allowed to optimize the construction, as follows: to optimize the operation of cranes, the placement of building structures and materials at various stages of construction, to optimize the organization of work performance, as well as to monitor the activities related to the preparation of the construction site for compliance with labor protection and safety requirements, which resulted in saving money and time.


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