scholarly journals Perilaku Cross-Laminated Timber (CLT) Sebagai Material Utama Bangunan Tingkat Menengah Tahan Gempa di Indonesia

2020 ◽  
Vol 14 (3) ◽  
pp. 204-210
Author(s):  
Ika Rahmawati Suyanto ◽  
Keyword(s):  
Bearing Capacity ◽  
Dimensional Stability ◽  
3D Model ◽  
Building Construction ◽  
Building Code ◽  
Structural Element ◽  
Previous Researcher ◽  
Cross Laminated Timber ◽  
Story Building

Cross-laminated timber (CLT) is made up of multilayered timber stacked perpendicularly, which improved the dimensional stability and allowing CLT to has high bearing capacity in its two direction. Despite all the advantages, CLT has not yet gain much attention in Indonesian, especially the utilization in mid-rise building construction. In order to have a better understanding about CLT as main structural element, the behaviour of mid-rise building made of CLT was assessed by running a 3D model of 5-story building by combining building code in Indonesia with CLT parameter from previous researcher as well as recommended adjustment from previous researchers. The research shows that CLT building statisy the allowable parameter for mid-rise building in Indonesia.

scholarly journals Analysis and Calculation of Stability Coefficients of Cross-Laminated Timber Axial Compression Member

Polymers ◽  
2021 ◽  
Vol 13 (23) ◽  
pp. 4267
Author(s):  
Qi Ye ◽  
Yingchun Gong ◽  
Haiqing Ren ◽  
Cheng Guan ◽  
Guofang Wu ◽  
...  
Keyword(s):  
Bearing Capacity ◽  
Axial Compression ◽  
Calculation Method ◽  
National Standards ◽  
Test Results ◽  
Average Deviation ◽  
Stability Coefficient ◽  
Cross Laminated Timber ◽  
Stability Bearing Capacity ◽  
The Stability

Cross-laminated timber (CLT) elements are becoming increasingly popular in multi-storey timber-based structures, which have long been built in many different countries. Various challenges are connected with constructions of this type. One such challenge is that of stabilizing the structure against vertical loads. However, the calculations of the stability bearing capacity of the CLT members in axial compression in the structural design remains unsolved in China. This study aims to determine the stability bearing capacity of the CLT members in axial compression and to propose the calculation method of the stability coefficient. First, the stability coefficient calculation theories in different national standards were analyzed, and then the stability bearing capacity of CLT elements with four slenderness ratios was investigated. Finally, based on the stability coefficient calculation formulae in the GB 50005-2017 standard and the regression method, the calculation method of the stability coefficient for CLT elements was proposed, and the values of the material parameters were determined. The result shows that the average deviation between fitting curve and calculated results of European and American standard is 5.43% and 3.73%, respectively, and the average deviation between the fitting curve and the actual test results was 8.15%. The stability coefficients calculation formulae could be used to predict the stability coefficients of CLT specimens with different slenderness ratios well.

scholarly journals Litigation of Building Code Disputes

1991 ◽  
Vol 8 (1) ◽  
Author(s):  
Joel A. Miele
Keyword(s):  
Expert Witness ◽  
Building Code ◽  
Structural Element ◽  
Professional Engineer

A treatise on the litigation of building code disputes from the standpoint of the Professional Engineer serving as an expert witness and outlining a methodology for determining a supportable history for a structure or structural element which will withstand adversarial scrutiny and attack.

scholarly journals Church enclosure walls bearing capacity estimations and its validation on 3D models

2020 ◽  
Vol 310 ◽  
pp. 00023
Author(s):  
Pavel Kuklik ◽  
Martin Valek ◽  
Ivana Bozulic ◽  
Pratik Gajjar ◽  
Chandrashekhar Mahato ◽  
...  
Keyword(s):  
Bearing Capacity ◽  
Numerical Models ◽  
3D Models ◽  
Present Calculation ◽  
Fem Modeling ◽  
Structural Element ◽  
Historical Structures ◽  
Numerical Tools ◽  
Tools And Techniques

The paper deals with the nonlinear computational modeling of the baroque enclosure masonry walls. The main tasks are input parameters for efficient advanced numerical tools and techniques, which are based on nonlinear and quasi brittle constitutive FEM modeling. For the work was used the knowledge and results from the Broumov Group Churches survey acquired in the frame of international SAHC university cooperation. The goal of the contribution are real bearing capacity parameters of the composite enclosure walls, which leads from standard homogenization techniques. With regards to the material micro modeling of different wall configuration in longitudinal and transversal direction was done with ATENA 2D software to evaluate the safe bearing capacity of the walls. The set of models aim to assess the bearing capacity of the enclosure wall, which is the main structural element in the church. In detail, we will present results from the numerical investigation, and partial in situ testing, from Vižňov, Ruprechtice and Otovice. Finally, we will present calculation of cracks propagation on full 3D church models. Concerning historical structures, it is one way how to validate the quality of estimations and validate numerical models.

scholarly journals Bearing capacity analysis of helical pile foundation on peat

2018 ◽  
Vol 195 ◽  
pp. 03005
Author(s):  
Ferry Fatnanta ◽  
Andarsin Ongko
Keyword(s):  
Bearing Capacity ◽  
Pile Foundation ◽  
Load Test ◽  
Building Construction ◽  
Capacity Analysis ◽  
Cross Sectional ◽  
Tension Tests ◽  
Constant Rate ◽  
Helical Piles ◽  
The Individual

Peat is a kind of soil with a very low bearing capacity and high compressibility. Generally, a building construction on peat is done by using a wooden pile foundation. However, the length of the wooden piles is sometimes limited and causes the friction strength between the soil and wooden piles to became suboptimal. In order to enhance the bearing capacity of the foundation, the cross-sectional area of the foundation needs to be enlarged. One of the solutions for this problem is through helical piles. There are two methods to determine the helical pile`s bearing capacity, i.e. individual bearing and cylindrical shear methods. In this paper, bearing capacity prediction was discussed. A foundation load test was thoroughly done by a constant rate of penetration. This test consisted of compression and tension tests. The result was analyzed by individual bearing and cylindrical shear methods and next compared to each other. The result of the analysis has shown that the individual bearing method was more suitable in predicting helical piles’ bearing capacity since it produced the lowest error rate, with a magnitude of 21,31%.

X-Lam Panels in Swimming-Pool Building – Monitoring the Environment and the Performance

2013 ◽  
Vol 778 ◽  
pp. 779-785 ◽  
Author(s):  
Luís Jorge ◽  
Alfredo M.P.G. Dias
Keyword(s):  
Moisture Content ◽  
Dimensional Stability ◽  
Plane Deformation ◽  
Monitoring Program ◽  
Swimming Pool ◽  
Service Class ◽  
Cross Laminated Timber ◽  
Building Monitoring ◽  
Moisture Variation ◽  
High Level

The cross-laminated timber panels (X-Lam panels) are produced for structural use in Service Classes 1 and 2 conditions, in accordance with what is established on Eurocode 5 [. Timber boards are glued together on orthogonal layers, allowing the panel to perform two important characteristics: good dimensional stability and loading in two-way directions. The influence of wood moisture content on the feasibility of cross-laminated timber is described in this paper regarding the dimensional stability of the panels when applied in high moisture locations. Several European Technical Approvals, state the low importance of the dimensional variations with moisture content of this type of panel, but some reference values can be found in other technical documents. The French Avis Technique [[[1 reference the value of 0.01mm/m for in-plane deformation (per percentage of timber moisture variation) and the TRADA Wood Information Sheet, WIS 2/3-62 [1, refers the maximum value of 0.02mm/m for the same conditions.The use of the X-Lam panels in Service Class 3 can not be used, concerning the high level of stressing in glue lines, and no producer has yet certified it for this Service Class. Moreover, the French Avis Technique doesnt allow the use of X-Lam panels in swimming-pools due to high hygrometry, even for conditions corresponding to Service Class 2.Cross laminated timber panels are widely used across Europe but are giving the first steps in Portugal at the moment. The first big project was finished in spring 2012 in Almada, comprising a building integrating a 25 meter in-door swimming-pool and a gym. In order to assess the behavior of the timber structure, due to the non-conventional using of the X-Lam panels, a monitoring program was started immediately after building construction. The results obtained are presented and discussed in this paper.

The Increasing Laws of the Foundation Strength and Civil Engineering

2011 ◽  
Vol 250-253 ◽  
pp. 2662-2666
Author(s):  
Zhi Hai Qin ◽  
Tong Dong Li
Keyword(s):  
Water Stress ◽  
Bearing Capacity ◽  
Pore Water ◽  
Effective Stress ◽  
Civil Engineering ◽  
Building Construction ◽  
Foundation Pit ◽  
Engineering Construction ◽  
Building Load ◽  
Over Time

In the civil engineering construction, with the building load of building construction or adding storeys, foundation pit dewatering, embankment filling , over time, the pore water stress that is borne by pore water in the foundation decreases gradually, the effective stress that is borne by particle increases gradually, the foundation bearing capacity increases gradually, we use different methods to derive the variation law in the theoretical solution, and carry on the comparison, then get the same conclusion. By using theory to solve the frequently encountered problems during civil engineering construction, including the problems of building construction or adding storeys, foundation pit dewatering, embankment filling, it provides theory basis for both economical and safe civil engineering construction .

scholarly journals Proposta de previsão da capacidade de carga à tração de estacas tipo hélice contínua em solos granulares

2020 ◽  
Vol 1 (48) ◽  
pp. 146
Author(s):  
Caio Cardoso Scipião ◽  
Alfran Sampaio Moura
Keyword(s):  
Bearing Capacity ◽  
Granular Soils ◽  
Specific Method ◽  
Uplift Capacity ◽  
Security Measures ◽  
Structural Element ◽  
Compressive Loads ◽  
Penetration Tests ◽  
Uplift Forces

Foundations projects must present security measures concerning the structural element and soil-structure system failure and acceptable displacements. In buildings it is very common to have foundations which are only subjected to compressive loads, however, in many of them, the foundations are submitted to uplifting forces, thus it is also necessary to verify the safety conditions regarding uplift capacity. In this context, this article evaluates the applicability of specific and non-specific methods for estimating the uplift bearing capacity of continuous flight auger piles in granular soils. In addition to that, a method was developed in order to estimate the ultimate uplift capacity of these pile types. In order to so, this research was based on 97 Standard Penetration Tests (SPT), and 12 continuous flight auger piles in granular soils subjected to the uplift forces. Among the evaluated literature methods, the specific method that presented the best agreement was Meyerhof and Adams (1968), and the non-specific one was Meyerhof (1953), both with approximately 65% higher values, in average, than the reference values and with great scatter. On the other hand, the developed method presented good agreement and lower scatter, establishing an alternative for the determination of uplift bearing capacity of continuous flight auger piles in granular soils.

Meningkatkan Daya Dukung Tiang Pondasi Minipile Persegi Pada Gedung Kantor Ngasem Kabupaten Kediri Menggunakan Metode Mayerhoff

2021 ◽  
Vol 4 (2) ◽  
pp. 41
Author(s):  
Erwin Dwi Laksana ◽  
Edy Gardjito ◽  
Suwarno Suwarno ◽  
Faiz Muhammad Azhari ◽  
Imam Mustofa
Keyword(s):  
Bearing Capacity ◽  
Soil Type ◽  
Building Construction ◽  
Office Building ◽  
Cross Sectional ◽  
Cross Sectional Dimension ◽  
Pile Cap ◽  
Calculation Results ◽  
Foundation Pile ◽  
Hard Soil

The foundation is one part under the building that has a very important role. The choice of the type of foundation is something that needs to be considered. One type of foundation that is widely used is the minipile foundation. Minipile foundation itself is a type of foundation that is used if the load received from the superstructure is not too heavy and the hard soil type is at a depth of between 5-10m. The purpose of this study was to plan the bearing capacity of the minipile foundation pile in the PT. BPJE in Ngasem, Kediri Regency. The building is planned to be used as an office building. The planned sub-building includes foundation planning with a mini-square building with a cross-sectional dimension of 20x20. The calculations carried out include the calculation of the bearing capacity of the foundation using the Mayerhoff method, the calculation of the flexural factor and the calculation of reinforcement. The calculation results (sigma Vertical Ultimate) Vu = 114.78 tons. With bending factor tk = 286.95 kg /. The reinforcement in the pile cap for the x direction of tensile reinforcement = D16–170 and compression reinforcement = D16–250 while for tensile reinforcement in the y direction = D16 - 170 and compressive reinforcement = D10 - 250. Thus, the results of the planning can be used as a reference for the implementation of building construction. office of PT. BPJE in Ngasem, Kediri Regency.

scholarly journals The Collapse of the Alto Río Building during the 27 February 2010 Maule, Chile, Earthquake

2012 ◽  
Vol 28 (1_suppl1) ◽  
pp. 301-334 ◽  
Author(s):  
Cheng Song ◽  
Santiago Pujol ◽  
Andrés Lepage
Keyword(s):  
Reinforced Concrete ◽  
Building Code ◽  
Field Observations ◽  
Structural Walls ◽  
Floor Area ◽  
Chile Earthquake ◽  
Maule Earthquake ◽  
2010 Maule Earthquake ◽  
Story Building

The Alto Río Building, a 15-story building located in Concepción, Chile, collapsed during the 2010 Maule earthquake. Construction of the building was completed in 2009 following the Chilean building code of 1996. The building was provided with reinforced concrete structural walls (occupying nearly 7% of the floor area) to resist lateral and vertical loads. The walls failed in the first story, causing the overturning of the entire building. This paper provides detailed field observations and discusses plausible causes of the collapse.

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