Technical condition of the existing structure

Hlavním cílem bakalářské práce je zjistit stavebně technický stav objektu budovy pavilónu B v areálu Zemědělské fakulty Jihočeské univerzity, která stojí na ulici Studentská v Českých Budějovicích. Důvody pro diagnostické práce jsou plánovaná rekonstrukce a stavební úpravy, které budou uskutečněny v následujících letech.The main goal of bachelor work is to find out the technical condition of building pavilion B in the area of Faculty of agriculture which is part of University Jihočeská. This building is situated on the Studentská street in České Budějovice. The reason for diagnostic works are reconstruction and construction modify, which will be done in next years.

Design of Road Cut Adjacent to Existing Structure

Interchange improvements within an urban environment required the deepening of a hillside cut. Design restraints required as deep a cut as possible without disturbing a water tower located at the crest of the slope or interfering with a shopping center at the toe. The water tower, constructed in 1933 with a steel tank encased in a concrete and brick structure, was founded on shallow spread footings. Foundation soils were silts and silty sands with seams of silty clay. The design investigation involved hydrogeologic studies, SPT borings, undisturbed sampling, laboratory testing, and stability analyses. Laboratory studies involved routine and unusual testing procedures to evaluate deformation potential upon drying. Results of the investigation allowed the deepening of the cut some 20 feet using conventional construction techniques. This paper details the geotechnical investigation, laboratory testing, analysis procedure, construction monitoring, and project results

Ground Heave Due to Jet Grouting Near an Existing Structure

Renovations of the MBTA Copley Station in Boston included construction of a new elevator shaft to improve disabled access to the existing Green Line station. The site is immediately adjacent to the Eastern façade of the historic Old South Church. The construction work required excavation support including a perimeter secant pile wall and a jet-grouted base plug. Significant ground and structural movements were observed during jet grouting, mainly associated with soil displacements during grout injection. A three dimensional numerical model was developed, using the Plaxis 3D Foundation™ program, in order to test the hypothesis that the observed movements of the structure could be associated with the installation of the jet grout piles. The amount of volume expansion associated with installation of jet grout piles is estimated based by calibrating the model to measured ground movements. The finite element model results give a consistent explanation for the observed pattern of movements, including the heave of the church wall and lateral displacements at inclinometers located within the vicinity of the structure, measured at the time when damage occurred. The model assumes there is a vertical line of weakness in the masonry, representative of a pre-existing structural crack, as observed by structural investigations; and hence, confirms the underlying mechanical hypothesis for the source of ground movements

Considerable Factors in Determining the Sustainability Benefits of the Demolition of an Existing Structure for a New Build and of the Renovation of an Existing Structure

The decision between whether to demolish or renovate a building comes down to which one will satisfy the owner’s needs and objectives while remaining within budget. This project will identify factors in determining sustainability benefits between a completely new construction project that demolishes the existing structure prior to rebuilding and a renovation project that reuses some or all of the existing structure. Research on construction data, interviews conducted with leading industry members, and journals that reported on both these strategies are presented. This project will examine considerations that reduce the demolition’s negative impact on the environment and improve the overall lifecycle of the building, which includes the use of a construction and demolition waste plant to turn that waste into recycled aggregates. The new construction after demolition allows for the installation of modern energy systems that use sustainable and efficient building designs and lead to a long-lasting building lifecycle. Demolition provides higher cost savings and sustainability benefits to the building and its operations due to the ability to reduce the negative impacts of waste by recycling and being equipped with modern technology to improve energy savings through its design and its mechanical, electrical, and plumbing systems. A design that foresees future upgrades or renovations will improve the lifecycle of a building, leading to greater cost reduction and sustainability benefits by making future improvements more feasible and cost-effective

The assessment of existing structure

Cílem tohoto dokumentu je posouzení existující železobetonové skeletové konstrukce jednopodlažní haly. V této práci je postupně proveden statický výpočet a posouzení jednotlivých nosných prvků železobetonové konstrukce. Důležitým aspektem při stanovování zatížení bylo plánované osazení mostového jeřábu s větší nosností. Hlavním podkladem pro posouzení existující konstrukce byl stavebně-technický průzkum, z jehož výsledků byly stanoveny vstupní výpočtové parametry. Cílem práce bylo posoudit, zda je možno při stávajícím technickém stavu konstrukce osadit v budoucnu mostový jeřáb o vyšší požadované nosnosti, případně navrhnout taková technická opatření, která by toto umožňovala.This document aims to assess existing reinforced concrete construction od single-storey hall. There is gradually made static calculation and made judgment on individual supporting elements of reinforced concrete construction. There was very important aspect of assesment load. That aspect was to calculate with planned instalation of a new overhead crane with greater capacity. The main basis for the assessment of existing construction was building-technical survey, the results of which were determined input parameters calculation. The aim of the study was to assess whether it is possible at the current technical state of the construction fitted in the future of higher overhead crane capacity required, or propose such technical measures that would allow this.

Comprehensive Conservation Outreach Plan

With funding from the Natural Resources Outreach Coalition (NROC) and the New Hampshire Estuaries Project (NHEP) the Town of Newmarket has undertaken the constructing of three signs and two educational/information kiosks for two recently acquired open space parcels and associated information for distribution on all conservation and passive recreation lands in the Town of Newmarket. The third kiosk involved repairing an existing structure rather than building a new one. The costs for the project include the creation and printing of maps and brochures for distribution, creation and installation of the kiosks (which will also house several signs from our funding partners) and the primary identification signs for three conservation parcels