• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 8
  • 1
  • Tagged with
  • 9
  • 6
  • 5
  • 4
  • 4
  • 4
  • 4
  • 4
  • 4
  • 4
  • 3
  • 3
  • 3
  • 3
  • 3
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Rekonstrukce stávajícího mostu / Reconstruction of the existing bridge structure

Biller, Martin January 2013 (has links)
Master's thesis deals with the reinforcement and expansion of girder bridge (continuous bridge with three spans) across the river Jihlava in Ivančice and reinforcement on the load class A. This is done by using an additional external prestressing cables and composite monolithic slab. Amplification is verified by calculation of load capacity.
2

Rekonstrukce předpjatého železničního mostu / The reconstruction of the prestressed railway bridge

Macková, Lucie January 2014 (has links)
Diploma thesis describes the design of main structure reinforcement of the railway bridge ,,Gagarin’’ in the 5,872 km of route Český Těšín – Ostrava Kunčice. Reinforcement is achieved by combination of composite slab-shaped channel with the continuous gravel ballast and free additional prestressing cables. There are 3 variants for which the design and assessment of main structure is performed. Evaluation of the options is performed on basis of calculations. There are made additional calculations and drawings for best variant.
3

Železobetonová nádrž / Cast-in-place tank

Laurinyeczová, Erika Unknown Date (has links)
The thesis deals with the analysis of a reinforced concrete digestate tank. The tank is built as a semi-underground construction. The roof is designed as a reinforced concrete dome, which is prestressed in a circular beam with prestressing cables - monostrands. The calculation of internal forces were performed by the software SCIA Engineer. The structure was assessed for the ultimate limit state and the ultimate serviceability state, in terms of watertightness for the width of cracks.
4

Statické posouzení stávajícího železobetonového komínu / Structural assessment of the reinforced concrete chimney

Teplý, Jakub January 2017 (has links)
The aim of this thesis is assessment of existing condition reinforced concrete factory chimney, who has undergone structural and technical survey, under which was found many failures caused of horizontally tension - significant vertical cracks in the chimney stack. The object of this work will also make appropriate proposals rehabilitation of concrete stack by design prestressed cables monostrand in horizontal direction, grouting open cracks and reprofiling surface of chimney stack.
5

Průzkum a návrh rekonstrukce zděného objektu v Medlicích / Diagnostic and Reconstruction Design of Brick Building in Medlice

Košárek, Jan January 2014 (has links)
Master’s thesis deals with diagnostics and reconstruction of neo-gothic chapel in Medlice. Summary of appropriate testing methods for this chapel is compiled. Visual examination of whole structure have been performed by diagnostics. Masonry element strength was found out at specimens which had were taken out from structure (drill cores and whole bricks). Masonry elements also was tested by Schmidt hammer LB. Mortar was tested by Kucera’s drill. Masonry strength required for static calculation was computed from achieved values. After examination of all structure defects have been designed reconstruction by post-tensioning.
6

Statické posouzení stávajícího železobetonového skeletu výrobního objektu / Structural assessment of the existing reinforced-concrete frame structure of the production building

Pražan, Jiří January 2019 (has links)
The diploma thesis deals with the structural assessment of the existing reinforced concrete frame structure of the production building. The structure under consideration is carried out as a reinforced concrete monolithic frame structure with a discrepancy of 6,15 x 6,15 m (axis). The object has a rectangular plan of 13 x 9 fields. The total dimension is 56 x 81m and is divided into three dilation units on all floors by two inserted 3,65 m wide fields. The building has three above-ground floors and one underground floor. The construction height of the basement is 3,675 m, above ground level 4,0 m. On the west side of the building (axis A) are three reinforced concrete elevator shafts with a dimension of approximately 4,5 x 3,8 m. The envelope and inner partitions are made of bricks full of burned. The work shall include a static assessment of the status quo, a determination of the load capacity and a proposal for appropriate adjustments to ensure static reliability.
7

Střecha plaveckého stadionu / Roof of the swimming pool

Pelikán, Adam January 2014 (has links)
This diploma thesis is about designing the structure of roof of swimming stadium. Three solutions are created - concrete arc with tie, steel truss slab and concrete pretensioned membrane. One choosed solution - concrete pretensioned membrane - is afterwards developed. In the beginning there are several designs of geometry fulfilling the requirements for given type of structure being created. In part of static calculation, the parametrical mathematical model in form of macro in APDL language for Ansys software has been created. Afterwards all the parameters (initial state of cables, level of pretension, dimensions of membrane and peripheral frame, etc.) has been optimized in order to the membrane be fulfilling criterias for ultimate limit state and serviceability limit state. Afterwards other selected parts of structure has been checked. On basis of designed geometry and design checks in static calculation the drawings of conctruction and designed parts has been created. In the end, the 3D model of the structure has been created in graphical software Rhinoceros. Then visualizations of structure in concstruction stages and after completion has been rendered.
8

Oprava a zesílení železobetonové stropní konstrukce / Reconstruction and strengthening of reinforced concrete ceiling construction

Klimeš, Petr January 2015 (has links)
The final thesis deals with strengthening of cast-in-place concrete ceiling in existing construction for couple of escalators. New prestressed beam, columns in new positions and strengthened girder with unbonded strands are building in this adjustments. Every member, including the existing construction, is verified for ultimate and serviceability limit state. Prestressed members are alternatively designed with bonded strands and these variants are comparison in terms of utilization and calculation.
9

Předpjatá stropní konstrukce nákupního centra / The prestressed floor construction of the shopping centre

Miechová, Zuzana January 2012 (has links)
The aim of the Master´s thesis is to design the prestressed floor construction of the shopping centre. The construction is supported by the columns with the maximal span dimensions 16,0*16,6 m. The design is made according to the VSL (VSL International Ltd.)slab system - post-tensioned slab prestressed by the unbonded system of 4 monostrand units. In the thesis there is also made a simplified design of the reinforced concrete floor construction supported with the bigger amount of the columns. It is made a comparison of the both types of the floor slabs and the evaluation of their advantages and disadvantages. The statical analysis and the calculation of the internal forces is assessed by the program Nexis 3.60.15 32.

Page generated in 0.0618 seconds