scholarly journals STUDI EVALUASI PONDASI TIANG PANCANG (SPUN PILE) DENGAN PONDASI TIANG BOR (BORED PILE) PADA GEDUNG KANTOR PEMERINTAH KABUPATEN LAMONGAN

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.

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.


2018 ◽  
Vol 1 (2) ◽  
Author(s):  
Dwi Hartanto ◽  
Yosef Cahyo ◽  
Sigit Winarto

ABSTRACT The foundation holds a very important role in the construction of a building. Aside from being the foundation of the strength of a building construction, the foundation plays a role in distributing the burden of the building on it, so that it can be channeled to the subsoil well and make the building stand firm. For this reason, the calculation of the foundation must be calculated precisely so that the construction of the building can be stable and not decrease. The purpose of this study was to plan the carrying capacity and size and reinforcement of the stake in the Kediri Regency DPRD Secretariat Building with sondir data. The author conducts the examination method directly in the field and coordinates with the Planning Consultant and looks for references from several literature. From the results of the author's calculation, it can be concluded as follows: 1. The loading that occurs in one to four floor buildings is: a) 4th floor life load and dead load are obtained at 684558.8 kg b) 3d floor load and dead load are obtained at 701838.8 kg c) The second floor's live load and dead load are obtained at 736398.8 kg d) The 1st floor living load and dead load are obtained at 736398.8 kg e) Then, the total loading (Wt) was obtained 2806395.4 kg = 2859.19 tons 2. Pile foundation dimensions = 40 cm; depth = 10 meters, with the number of two pieces per Pile Cap 3. The amount of reinforcement needs on the building foundation is 20575.05 kg In planning the foundation of a building the completeness of the data is an absolute requirement that is needed so that the level of security and efficiency of the foundation can be planned and carried out in the field appropriately. 


Jurnal CIVILA ◽  
2018 ◽  
Vol 3 (2) ◽  
pp. 166
Author(s):  
Agata Iwan Candra ◽  
Anasrudin Yusuf ◽  
Amanda Rizky F

The foundation is a part of the building construction which is responsible for accepting and eradicating all the load from the building either live load or dead load from a land market building which is strong enough to support it . To determine the soil bearing capacity soil investigation needs to be done so that the building that are above the ground is not decreased (settlelment) is large enough, then the foundation must reach solid ground layer and the bearing capacity of the soil (bearing capacity) are permitted.   Strous foundation and bored pile used if the ground conditions in the bottom of the building does not have sufficient load bearing capacity to carry the load or if the hard soil that has a strong carrying capacity is located very deep from the ground surface. The purpose of this study is to calculate the carrying capacity of Strous Meyerhoff and Begemann on sondir results.


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>


1988 ◽  
Vol 32 (01) ◽  
pp. 37-43
Author(s):  
Paul C. Xirouchakis

The solution is presented for an infinite elastic-softening floating beam under a point load. The response depends on two nondimensional parameters: the negative stiffness coefficient that characterizes the descending part of the moment-curvature curve, and the nondimensional softening region half-length. The solution exhibits two important features that the elastic-perfectly plastic solution does not show. First, in certain ranges of parameters, the elastic-softening beam has a clearly defined maximum load carrying capacity. Second, in some other ranges of parameters, the elastic-softening beam has a minimum load or residual strength. The beam stiffens up upon further deformation due to the reactions of the water foundation. Critical softening parameters are calculated that separate stable from unstable behavior.


2021 ◽  
pp. 137-146
Author(s):  
M. Preventas ◽  
S. Fanourgakis ◽  
M.S. Samuelides

Author(s):  
Ashraf Ragab Mohamed

Corrosion of reinforcement is considered as the major cause of most deteriorated concrete structures. As reinforcement corrodes, the load carrying capacity is affected and hence, the probability of failure increases. At the time of inspection of deteriorated structures, engineers are faced with the problem whether the available steel is enough to secure the safety of the structural member. This chapter addresses this problem based on reliability-based approach to evaluate the safety of the deteriorated members due to uniform corrosion under bending. A methodology is proposed to facilitate the determination of the member reliability index based on basic material properties and current loading. A step-by-step procedure is proposed based on charts developed in this study according to the Egyptian code provisions.


1995 ◽  
Vol 32 (6) ◽  
pp. 976-988 ◽  
Author(s):  
G.J.W. King ◽  
M. Laman

An experimental investigation into the moment carrying capacity of short rigid pier foundations in saturated clay is described. Scale models of square piers with different breadths and depths were used in both conventional and centrifugal studies. The results show that the relationships between moment and rotation are nonlinear but do not exhibit any peak values, and that moment limits, defined by limiting angular rotations, increase with increases in pier depth and breadth. Empirical equations are derived between moment carrying capacity and pier geometry, for a range of limiting rotations, and a very close fit is demonstrated between the moment–rotation relationships obtained using these equations and the actual data obtained from the model tests. It is shown that, at the same pier rotations, the moment carrying capacities observed in the centrifugal model tests are significantly larger than those in the conventional model tests. Numerical analyses of the prototype geometries were also carried out using a three-dimensional nonlinear finite-element computer program. The results are shown to provide satisfactory agreement with the moment–rotation behaviour and working limits observed in the centrifuge model tests. Thus, even though conventional modelling is usually legitimate for determining the immediate bearing capacity of rigid foundations in saturated clay, their rotational stability is shown to be significantly affected by self-weight stresses. Some of the existing methods for designing short piers subjected to moments are examined and compared with the results from the centrifuge model tests. Key words : pier foundation, clay, moment capacity.


2020 ◽  
Vol 165 ◽  
pp. 04047
Author(s):  
Jianping Wang

Dongjiang Lichuan Bridge in Dongguan City is a curved tower curved beam cable-stayed bridge with a main span of 138m and no back cable. The main pier cap is located on the bank slope of Dongguan Waterway on one side of Nandi Road. The cushion cap is dumbbell type, and the left and right cushion caps are connected by tie beams. In most areas, the top of rock stratum is above the bottom of bearing platform. The rock stratum within the buried depth of bearing platform is moderately to strongly weathered argillaceous siltstone. The geological conditions are complex and the construction is difficult. In line with the principles of speeding up the construction process and improving economic benefits, comprehensive analysis and weighing advantages and disadvantages, the main pier cap adopts a composite cofferdam of filling soil to build an island and combining bored pile rows and steel sheet piles. The construction task of bearing platform of main pier has been completed with high quality. Compared with other cushion cap construction methods, this construction method has the advantages of fast construction, high quality, simple safety, energy saving and environmental protection. This paper briefly introduces the design scheme of composite cofferdam, expounds in detail the operation steps of steel sheet pile construction and the problems needing attention in construction, and provides good reference experience for similar pile cap construction.


2014 ◽  
Vol 622 ◽  
pp. 65-73 ◽  
Author(s):  
Ravi Divahar ◽  
Philip Saratha Joanna

Engineers have realized that corrugated webs enormously increase their load carrying capacity as well as stability against buckling and can result in very economical design. In this paper, the results of the experiments conducted on cold-formed steel beam with encased trapezoidally corrugated webs with a view to study their strength and ductility are presented. The ductility of cold-formed steel beam with plain web and corrugated web is compared with that of encased trapezoidally corrugated web. Data presented include the load versus deflection curves, load versus strain curves, strength capacity, displacement ductility indices and moment versus curvature curves. It is found that the beam with encased trapezoidally web not only increases the moment carrying capacity but also the ductility. The results showed that the Super elastic property of encased corrugated web beams enhances the usage of it in the earthquake resistant structures.


Sign in / Sign up

Export Citation Format

Share Document