SCIA User Contest 2017 Online Book

67 Category 2: Civil Structures 2 Owner RSD - National highway directorate Architect Lukáš Vráblík General Contractor Silnice Group Engineering Office Novak & Partner, Ltd. Construction Period 09/2014 - 11/2016 The most important part on a new road bypass of Velemysleves town in northwest part of the Czech Republic is a bridge structure over a wide and deep valley of the Chomutovka river. The total length of the structure exceeds 538 m. The maximum height of the road above the ground level is about 36 m. The superstructure is designed as a continuous beam, the middle part as a continuous frame with a rigid connection between the piers and the superstructure. The length of the main span is 120 m and the lengths of the adjacent spans are 90 m, 65 m, and 45 m, respectively. The structure was erected using the balanced cantilevers method combined with a classical construction on a formwork. SCIA Engineer was used for complex simulation of the pre-stressed concrete structure behaviour. The construction stages and TDA modules were used for prediction of long term deflection and evaluation of internal forces, and also for pre-cambering during the construction process. A model based on shell elements was used for the analysis of distribution of internal forces and stresses respecting shear lag and shear deformation of box girder walls. The nonlinear and stability analysis of cantilevers during the construction phase was also used. The structure was fitted with gauges to obtain the time development of strain in the structure during the construction period. The results from gauges are very close to the computational prediction produced by SCIA Engineer models. Bridge over Chomutovka River Valley - Velemysleves, Czech Republic Novak & Partner, Ltd. Contact Lukáš Vráblík Address Perucká 5 12000 Prague 2, Czech Republic Website www.novak-partner.cz Novak & Partner Company provide full design and engineering services from concept preparation up to tender documentation and detail design documentation. It also provides author’s supervision, engineering activities, negotiation with public authorities, expert, consulting and bridge inspection services. In recent years, we provided our services to customers from the Czech Republic, Slovakia, Germany, Denmark, the Netherlands, Austria, the USA, Russia, Sweden, Ukraine and Singapore. Since 2003 the company is a member of VALBEK Group.