The increasing demand for more sustainable construction has led to the development of new structural systems that include wood as building material. Cross laminated timber (CLT) has been identified as a potential system to address this need and to provide alternative options in the range of low- to medium-rise construction. The appeal in using CLT as a shearwall is driven by the combination of the rigid panels and small dimension fasteners, which allows for significant energy dissipation in the structure. However, there is currently no reliable analytical model to accurately predict the behaviour of multi-segment CLT shearwalls. The current study aims to develop an analytical model capable of predicting the elastic and plastic phases associated with the behaviour of multi-panel CLT shearwalls. The model describes the wall behaviour as a function of the connectors’ properties in terms of stiffness, strength and ductility. This dependency means that the only input required in the model is the behavioural parameters of the connections. The proposed model contains six cases with a total of 36 different failure mechanisms. Two final wall behaviours were developed, and it was found that behaviour (i.e. single wall) could be achieved if the yielding in the hold-down occurred prior to yielding in the panel joints. Inversely, the other behaviour (i.e. coupled panels) was achieved if the yielding in the vertical joint occur prior to yielding in the hold-down. The analytical model was validated using a numerical model, and the results of the comparison showed very close match between the two models. The study proposed simplified design provisions with the aim to optimize the walls ductility (CP behaviour) or strength and stiffness (SW behaviour).

Projects in real estate development are commonly associated with failures in attaining clients’ expectations in terms of time, cost and quality. At the same time, the real estate and construction industry in Sweden is recognized as traditional and sometimes characterized by few and dominant actors leading to low competitiveness. The project based environment often results in temporary business agreements creating exposure for opportunistic behavior between actors. Also, growing complexity and occurring economic uncertainty make the capital intensive property development sector exposed to high risk. These challenges create a demand for new business strategies and deeper collaborations among actors. Further, research has suggested joint ventures as a strategy to enhance project performance and solve adversarial relationships. The thesis aims to give an amended knowledge of vertical joint ventures application in the real estate and construction industry in Sweden. This includes examining the current use, identifying motives and analyzing the potential application to explore organizational and market implications of joint ventures. Therefore, the research utilized a qualitative method where different actors from various perspectives was interviewed. Results show that a typical vertical joint venture formation is a separated equity entity, consisting of two parent firms, often between a property manager and a property developer, with equal ownership and decision making. The study indicates that the most common motives to form a vertical joint venture are risk sharing, financial purposes and accessing competencies and resources. Findings implicate that financial purposes are usually associated with property developers and complementary competencies are often the primary motive for property managers. However, for a vertical joint venture to be successful, mutual trust and joint primary goals between joint venture parents are decisive. In addition, a suitable vertical joint venture project has to be of large scope in terms of risk, complexity, size, duration or cost, to compensate for administrative costs the structure induces. Further, findings show that vertical joint ventures can be an efficient business formation to align incentives and decrease opportunism as well as it can enable firms to undertake projects beyond their financial capacity and competencies. / Fastighetsutvecklingsprojekt misslyckas ofta motsvara beställarens förväntningar vad gäller tid, kostnad och kvalitet. Samtidigt betraktas den svenska bygg och fastighetssektorn som konservativ där få och stora aktörer ofta dominerar marknaden vilket gör det svårt för mindre aktörer att konkurrera. Projekt regleras ofta av tillfälliga avtal där aktörer riskeras att utsättas för opportunism. Dessutom medför en ökande komplexitet och en osäkerhet på marknaden en hög risk för den kapitalkrävande bygg och fastighetssektorn. Dessa utmaningar ställer krav på nya affärsstrategier och fördjupade samarbeten hos aktörer. Forskning menar att joint venture kan användas för att förbättra projektresultat samt motverka kontradiktoriska förhållanden. Syftet med detta arbete är att ge en ökad kunskap om hur vertikala joint ventures kan tillämpas i bygg- och fastighetsbranschen i Sverige. Studien utreder därför användningen av vertikala joint ventures, vanliga motiv samt dess möjliga tillämpning för att utforska hur användandet kan påverka organisatorer och marknader. En kvalitativ metod har använts där aktörer med olika perspektiv har intervjuats. Resultatet indikerar att den vanligaste formen av vertikala joint ventures är när två parter investerar eget kapital i ett nytt gemensamt bolag, där ena parten är en fastighetsförvaltare och den andra parten en fastighetsutvecklare som båda har en lika stor del i ägande och beslutsfattande. Studien visar att de vanligaste motiven till att bilda ett joint venture är att dela på risk, få tillgång till finansiering och komplettera med kompetens och resurser. Resultatet visar att fastighetsutvecklare vanligen har finansiella motiv medan fastighetsförvaltare ofta bildar ett joint venture med primära syftet att komplettera med kompetens. För att ett joint venture ska kunna uppfylla sitt syfte krävs förtroende och att parterna har ett gemensamt huvudmål. Därutöver behöver ett projekt vara av större omfattning utifrån antingen risk, komplexitet, storlek, varaktighet eller kostnad för att kompensera för de administrativa kostnader som följer bildande av ett joint venture. Slutligen fastställs att joint ventures kan användas som en effektiv affärsstrategi för att skapa gemensamma incitament, minska opportunism samt möjliggöra för företag att utföra projekt som de inte kan utföra med interna resurser.